CN207819742U - A power supply for solar-powered drones - Google Patents
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Abstract
本实用新型的实施例公开了一种用于太阳能无人机的电源，该电源包括供电模块、电流电压监测模块、第一电压转换模块、第二电压转换模块和第三电压转换模块，通过第一电压转换模块、第二电压转换模块和第三电压转换模块将供电模块的电压进行DC/DC转换得到三种电信号，满足无人机电源多输出的要求。另一方面，通过电流电压监测模块对供电模块输出的电流进行分流，一方面将电流输入到第一电压转换模块和第二电压转换模块进行电压的转换，另一方面对供电模块输出的电流进行监控，保证了电路安全。
The embodiment of the utility model discloses a power supply for a solar unmanned aerial vehicle. The power supply includes a power supply module, a current and voltage monitoring module, a first voltage conversion module, a second voltage conversion module and a third voltage conversion module. The first voltage conversion module, the second voltage conversion module and the third voltage conversion module perform DC/DC conversion on the voltage of the power supply module to obtain three kinds of electrical signals, which meet the multi-output requirement of the UAV power supply. On the other hand, the current output by the power supply module is shunted through the current and voltage monitoring module. On the one hand, the current is input to the first voltage conversion module and the second voltage conversion module for voltage conversion; monitoring to ensure the safety of the circuit.
Description
技术领域technical field
本实用新型实施例涉及无人机供电技术领域，尤其是涉及一种用于太阳能无人机的电源。The embodiment of the utility model relates to the technical field of power supply for drones, in particular to a power supply for solar drones.
背景技术Background technique
太阳能无人机电源模块是根据研发太阳能无人机配套供电系统需求而设计的一款专用高性能电源模块。现有技术根据市场采购电源模块一是无法满足太阳能无人机的大电流长时间工作模式，经常由于电路电流过大引起器件击穿或过热损坏，为研发和测试工作带来诸多不便；二是市场采购电源模块输出电源电压单一太阳能无人机配套供电系统需要配置多个模块才能满足现有工作。The solar drone power module is a dedicated high-performance power module designed according to the needs of the solar drone's supporting power supply system. According to the existing technology, the power supply module is purchased according to the market. First, it cannot meet the high current and long-term working mode of solar drones. It often causes device breakdown or overheating damage due to excessive circuit current, which brings a lot of inconvenience to research and development and testing. Second, The power supply module purchased from the market has an output power supply voltage of a single solar UAV supporting power supply system needs to be equipped with multiple modules to meet the existing work.
在实现本发明实施例的过程中，发明人发现现有的太阳能无人机电源无法根据用户的需求设计出多路电源电压输出，无法满足大电流长时间稳定工作的要求。In the process of realizing the embodiment of the present invention, the inventor found that the existing solar drone power supply cannot design multiple power supply voltage outputs according to the needs of users, and cannot meet the requirements of high current and long-term stable operation.
实用新型内容Utility model content
本实用新型所要解决的技术问题是如何解决现有的太阳能无人机电源无法根据用户的需求设计出多路电源电压输出，无法满足大电流长时间稳定工作的要求的问题。The technical problem to be solved by the utility model is how to solve the problem that the existing solar unmanned aerial vehicle power supply cannot design multiple power supply voltage outputs according to the needs of users, and cannot meet the requirements of long-term stable work with large currents.
针对以上技术问题，本实用新型的实施例提供了一种用于太阳能无人机的电源，包括供电模块、电流电压监测模块、第一电压转换模块、第二电压转换模块和第三电压转换模块；In view of the above technical problems, the embodiment of the utility model provides a power supply for a solar unmanned aerial vehicle, including a power supply module, a current and voltage monitoring module, a first voltage conversion module, a second voltage conversion module and a third voltage conversion module ;
所述供电模块连接所述电流电压监测模块的输入端，所述电流电压监测模块输出端连接所述第一电压转换模块的输入端，所述第一电压转换模块的输出端作为输出第一预设电信号的第一输出端；The power supply module is connected to the input terminal of the current and voltage monitoring module, the output terminal of the current and voltage monitoring module is connected to the input terminal of the first voltage conversion module, and the output terminal of the first voltage conversion module is used as the output first preset A first output terminal of an electrical signal is provided;
所述电流电压监测模块输出端还连接所述第二电压转换模块的输入端，所述第二电压转换模块的输出端作为输出第二预设电信号的第二输出端；The output terminal of the current and voltage monitoring module is also connected to the input terminal of the second voltage conversion module, and the output terminal of the second voltage conversion module is used as a second output terminal for outputting a second preset electrical signal;
所述第二电压转换模块的输出端还连接所述第三电压转换模块的输入端，所述第三电压转换模块的输出端作为输出第三预设电信号的第三输出端。The output terminal of the second voltage conversion module is also connected to the input terminal of the third voltage conversion module, and the output terminal of the third voltage conversion module is used as a third output terminal for outputting a third preset electrical signal.
可选地，所述第一电压转换模块包括第一芯片，晶体管Q1、Q2和Q3，电感L1，电阻R1、R2、R3、R4、R5和R26，电容C5、C6、C7、C8、C9、C10和C11；Optionally, the first voltage conversion module includes a first chip, transistors Q1, Q2 and Q3, inductor L1, resistors R1, R2, R3, R4, R5 and R26, capacitors C5, C6, C7, C8, C9, C10 and C11;
所述电流电压监测模块输出端连接所述第一芯片的Vin引脚、第一芯片的RUN引脚、R1的第一端、Q1的漏极和Q2的漏极，R1的第二端连接第一芯片的OVLO引脚和R2的第一端，R2的第二端连接公共端GND；The output end of the current and voltage monitoring module is connected to the Vin pin of the first chip, the RUN pin of the first chip, the first end of R1, the drain of Q1 and the drain of Q2, and the second end of R1 is connected to the first The OVLO pin of a chip and the first terminal of R2, the second terminal of R2 is connected to the common terminal GND;
所述第一芯片的SW引脚连接C8的第一端、Q1的源极、Q2的源极、Q3的漏极、R4的第一端和L1的第一端，C8的第二端连接第一芯片的BOOST引脚；The SW pin of the first chip is connected to the first end of C8, the source of Q1, the source of Q2, the drain of Q3, the first end of R4 and the first end of L1, and the second end of C8 is connected to the first end of C8. BOOST pin of a chip;
所述第一芯片的TG引脚连接Q1的栅极和Q2的栅极，所述LTC3895的BG引脚连接Q3的栅极，Q3的源极接公共端GND；The TG pin of the first chip is connected to the gate of Q1 and the gate of Q2, the BG pin of the LTC3895 is connected to the gate of Q3, and the source of Q3 is connected to the common terminal GND;
L1的第二端连接所述第一输出端、C9第一端、第一芯片的Vfb引脚和第一芯片的SENSE-引脚，R4的第二端连接C9的第二端和第一芯片的SENSE+引脚；The second end of L1 is connected to the first output end, the first end of C9, the Vfb pin of the first chip and the SENSE- pin of the first chip, and the second end of R4 is connected to the second end of C9 and the first chip The SENSE+ pin;
第一芯片的VPRG引脚连接第一芯片的DRVSET引脚、第一芯片的DRVUV引脚、第一芯片的INTVcc引脚、R3的第一端和C6的第一端，C6的第二端连接公共端GND；The VPRG pin of the first chip is connected to the DRVSET pin of the first chip, the DRVUV pin of the first chip, the INTVcc pin of the first chip, the first end of R3 and the first end of C6, and the second end of C6 is connected to Common terminal GND;
第一芯片的SS引脚连接R3的第二端和C7的第一端，C7的第二端连接公共端GND；The SS pin of the first chip is connected to the second terminal of R3 and the first terminal of C7, and the second terminal of C7 is connected to the common terminal GND;
第一芯片的ITH引脚连接C10第一端和R26第一端，R26第二端连接C11的第一端，C11第二端连接C10第二端和R5的第一端，C10第二端还连接第一芯片的GND引脚，R5的第二端连接第一芯片的FREQ引脚；The ITH pin of the first chip is connected to the first end of C10 and the first end of R26, the second end of R26 is connected to the first end of C11, the second end of C11 is connected to the second end of C10 and the first end of R5, and the second end of C10 is connected to the first end of R5. Connect the GND pin of the first chip, and connect the second end of R5 to the FREQ pin of the first chip;
其中，R5用于调整第一芯片的工作频率，第一芯片的VPRG引脚连接第一芯片的INTVCC引脚固定输出为5V，R2用于过压保护监测，R1用于形成压差检查芯片工作开关，Q3、Q2、Q1和L1用于结合第一芯片将由所述电流电压监测模块输出端的电信号转变为第一预设电信号，从所述第一输出端输出。Among them, R5 is used to adjust the operating frequency of the first chip, the VPRG pin of the first chip is connected to the INTVCC pin of the first chip and the fixed output is 5V, R2 is used for overvoltage protection monitoring, and R1 is used to form a pressure drop to check the work of the chip The switches, Q3, Q2, Q1 and L1, are used in combination with the first chip to convert the electrical signal at the output end of the current and voltage monitoring module into a first preset electrical signal, which is output from the first output end.
可选地，还包括由电容C1、C2、C3和C4组成的第一滤波单元和由电容C12、C13和C14组成的第二滤波单元；Optionally, a first filter unit composed of capacitors C1, C2, C3 and C4 and a second filter unit composed of capacitors C12, C13 and C14 are also included;
所述第一滤波单元连接在所述电流电压监测模块输出端和第一芯片的Vin引脚之间，所述电流电压监测模块输出端连接C1的第一端、C2的第一端、C3的第一端和C4的第一端，C1的第二端、C2的第二端、C3的第二端和C4的第二端均接公共端GND；The first filter unit is connected between the output end of the current and voltage monitoring module and the Vin pin of the first chip, and the output end of the current and voltage monitoring module is connected to the first end of C1, the first end of C2, and the first end of C3. The first terminal and the first terminal of C4, the second terminal of C1, the second terminal of C2, the second terminal of C3 and the second terminal of C4 are all connected to the common terminal GND;
所述第二滤波单元连接在L1第二端和第一输出端之间，L1第二端连接C12的第一端、C13的第一端和C14的第一端，C12的第二端、C13的第二端和C14的第二端均接公共端GND；The second filter unit is connected between the second end of L1 and the first output end, the second end of L1 is connected to the first end of C12, the first end of C13 and the first end of C14, the second end of C12, C13 Both the second end of C14 and the second end of C14 are connected to the common end GND;
其中，所述第一滤波单元用于对输入第一芯片的电信号进行滤波，所述第二滤波单元用于对从第一输出端输出的电信号进行滤波。Wherein, the first filtering unit is used for filtering the electrical signal input to the first chip, and the second filtering unit is used for filtering the electrical signal output from the first output terminal.
可选地，所述第二电压转换模块包括第二芯片，晶体管Q4、Q5、Q6和Q7，电感L2，电阻R6、R7、R8、R9、R10、R11和R12，电容C19、C20、C21、C22、C23、C24、C25和C26；Optionally, the second voltage conversion module includes a second chip, transistors Q4, Q5, Q6 and Q7, inductor L2, resistors R6, R7, R8, R9, R10, R11 and R12, capacitors C19, C20, C21, C22, C23, C24, C25 and C26;
所述电流电压监测模块输出端连接所述第二芯片的Vin引脚、第二芯片的RUN引脚、Q4的漏极、Q5的漏极和Q6的漏极，Q4的栅极连接第二芯片的NDRV引脚，Q4的源极连接第二芯片的DRVcc引脚和C19的第一端，C19的第二端连接公共端GND；The output end of the current and voltage monitoring module is connected to the Vin pin of the second chip, the RUN pin of the second chip, the drain of Q4, the drain of Q5 and the drain of Q6, and the gate of Q4 is connected to the second chip The NDRV pin of Q4, the source of Q4 is connected to the DRVcc pin of the second chip and the first terminal of C19, and the second terminal of C19 is connected to the common terminal GND;
所述第二芯片的SW引脚连接L2的第一端、Q5的源极、Q6的源极、Q3的漏极、C21的第一端和Q7的漏极，C21的第二端连接LTC3895的BOOST引脚、Q7的栅极连接第二芯片的BG引脚，Q7的源极连接公共端GND；The SW pin of the second chip is connected to the first end of L2, the source of Q5, the source of Q6, the drain of Q3, the first end of C21 and the drain of Q7, and the second end of C21 is connected to the LTC3895 The BOOST pin, the gate of Q7 are connected to the BG pin of the second chip, and the source of Q7 is connected to the common terminal GND;
所述第二芯片的TG引脚连接Q5的栅极和Q6的栅极；The TG pin of the second chip is connected to the gate of Q5 and the gate of Q6;
L2的第二端连接R9的第一端、C22的第一端和第二TLC3895的SENSE+引脚，R9的第二端连接所述第二输出端、C22的第二端、第二TLC3895的SENSE-引脚和第二TLC3895的EXTVcc引脚；The second end of L2 is connected to the first end of R9, the first end of C22, and the SENSE+ pin of the second TLC3895, and the second end of R9 is connected to the second output end, the second end of C22, and the SENSE pin of the second TLC3895. - pin and the EXTVcc pin of the second TLC3895;
第二芯片的ILIM引脚、第二芯片的VOLO引脚、第二芯片的MODE引脚和第二芯片的DRVUV引脚连接公共端GND；The ILIM pin of the second chip, the VOLO pin of the second chip, the MODE pin of the second chip and the DRVUV pin of the second chip are connected to the common terminal GND;
LTC3895的SS引脚连接C24的第一端，C24的第二端连接公共端GND，LTC3895的Vfb引脚连接R12第一端、R10第一端和C23第一端，R10第二端和C23第二端连接R9的第二端，R12第二端连接公共端GND；The SS pin of LTC3895 is connected to the first terminal of C24, the second terminal of C24 is connected to the common terminal GND, the Vfb pin of LTC3895 is connected to the first terminal of R12, the first terminal of R10 and the first terminal of C23, the second terminal of R10 is connected to the first terminal of C23 The two ends are connected to the second end of R9, and the second end of R12 is connected to the common terminal GND;
第二芯片的ITH引脚连接R11第一端和C25第一端，R11第二端连接C26第一端，C26第二端和C25第二端均连接公共端GND；The ITH pin of the second chip is connected to the first terminal of R11 and the first terminal of C25, the second terminal of R11 is connected to the first terminal of C26, and the second terminal of C26 and the second terminal of C25 are connected to the common terminal GND;
第二芯片的CPUMP_EN引脚连接第二芯片的INTVcc引脚、R6第一端和C20第一端，C20第二端连接R8第一端、R7第一端和公共端GND，R6第二端连接第二芯片的PGOOD引脚，R8第二端连接第二芯片的FREQ引脚，R7第二端连接第二芯片的DRVSET引脚；The CPUMP_EN pin of the second chip is connected to the INTVcc pin of the second chip, the first terminal of R6 and the first terminal of C20, the second terminal of C20 is connected to the first terminal of R8, the first terminal of R7 and the common terminal GND, and the second terminal of R6 is connected to The PGOOD pin of the second chip, the second end of R8 is connected to the FREQ pin of the second chip, and the second end of R7 is connected to the DRVSET pin of the second chip;
其中，R8用于调整LTC3895的工作频率，Q5、Q6、Q7、L2、R10、R12和C23用于结合第二芯片将由所述电流电压监测模块输出端的电信号转变为第二预设电信号，从所述第二输出端输出。Among them, R8 is used to adjust the operating frequency of LTC3895, Q5, Q6, Q7, L2, R10, R12 and C23 are used to combine the second chip to convert the electrical signal at the output end of the current and voltage monitoring module into a second preset electrical signal, output from the second output terminal.
可选地，还包括由电容C15、C16、C17和C18组成的第三滤波单元和由电容C30、C27、C28和C29组成的第四滤波单元；Optionally, a third filter unit composed of capacitors C15, C16, C17 and C18 and a fourth filter unit composed of capacitors C30, C27, C28 and C29 are also included;
所述第三滤波单元连接在所述电流电压监测模块输出端和第二芯片的Vin引脚之间，所述电流电压监测模块输出端连接C15的第一端、C16的第一端、C17的第一端和C18的第一端，C15的第二端、C16的第二端、C17的第二端和C18的第二端均接公共端GND；The third filtering unit is connected between the output end of the current and voltage monitoring module and the Vin pin of the second chip, and the output end of the current and voltage monitoring module is connected to the first end of C15, the first end of C16, and the first end of C17. The first terminal and the first terminal of C18, the second terminal of C15, the second terminal of C16, the second terminal of C17 and the second terminal of C18 are all connected to the common terminal GND;
所述第四滤波单元连接在R9第二端和第二输出端之间，R9的第二端连接C30的第一端、C27的第一端、C28的第一端和C29的第一端，C30的第二端、C27的第二端、C28的第二端和C29的第二端均接公共端GND；The fourth filtering unit is connected between the second end of R9 and the second output end, the second end of R9 is connected to the first end of C30, the first end of C27, the first end of C28 and the first end of C29, The second terminal of C30, the second terminal of C27, the second terminal of C28 and the second terminal of C29 are all connected to the common terminal GND;
其中，所述第三滤波单元用于对输入第二芯片的电信号进行滤波，所述第四滤波单元用于对从第二输出端输出的电信号进行滤波。Wherein, the third filtering unit is used for filtering the electrical signal input to the second chip, and the fourth filtering unit is used for filtering the electrical signal output from the second output terminal.
可选地，所述第三电压转换模块包括第三芯片，电感L5，电阻R13、R14、R15和R16，电容C31、C32、C33、C34和C37；Optionally, the third voltage conversion module includes a third chip, an inductor L5, resistors R13, R14, R15, and R16, and capacitors C31, C32, C33, C34, and C37;
所述第二电压转换模块的输出端连接C31的第一端、第三芯片的VIN1引脚、第三芯片的VIN引脚和第三芯片的EN/UV引脚，C31的第二端连接公共端GND；The output end of the second voltage conversion module is connected to the first end of C31, the VIN1 pin of the third chip, the VIN pin of the third chip and the EN/UV pin of the third chip, and the second end of C31 is connected to the common Terminal GND;
第三芯片的RT引脚连接R13第一端，R13的第二端连接公共端GND；The RT pin of the third chip is connected to the first terminal of R13, and the second terminal of R13 is connected to the common terminal GND;
第三芯片的TR/SS引脚连接C37的第一端，C37的第二端连接公共端GND；The TR/SS pin of the third chip is connected to the first terminal of C37, and the second terminal of C37 is connected to the common terminal GND;
第三芯片的INTVCC引脚连接C32第一端，C32的第二端连接公共端GND；The INTVCC pin of the third chip is connected to the first terminal of C32, and the second terminal of C32 is connected to the common terminal GND;
第三芯片的bst引脚连接C33第一端，第三芯片的SW引脚连接C33第二端，C33的第二端连接L5的第一端，L5的第二端连接C35的第一端和所述第三输出端，C35的第二端连接公共端GND；The bst pin of the third chip is connected to the first end of C33, the SW pin of the third chip is connected to the second end of C33, the second end of C33 is connected to the first end of L5, and the second end of L5 is connected to the first end of C35 and The third output terminal, the second terminal of C35 is connected to the common terminal GND;
第三芯片的PG引脚连接R16的第一端，第三芯片的BIAS引脚连接R16的第二端，R16的第二端连接所述第三输出端；The PG pin of the third chip is connected to the first end of R16, the BIAS pin of the third chip is connected to the second end of R16, and the second end of R16 is connected to the third output end;
第三芯片的FB引脚连接R15的第一端、R14的第一端和C34的第一端，R15的第二端连接公共端GND，R14的第二端和C34的第二端均连接所述第三输出端；The FB pin of the third chip is connected to the first terminal of R15, the first terminal of R14 and the first terminal of C34, the second terminal of R15 is connected to the common terminal GND, the second terminal of R14 and the second terminal of C34 are connected to the the third output terminal;
其中，R13用于调整第三芯片的工作频率，R14、R15和C34用于调整第三输出端的输出电压，C31用于对输入至第三芯片的电信号进行滤波。Wherein, R13 is used to adjust the operating frequency of the third chip, R14, R15 and C34 are used to adjust the output voltage of the third output terminal, and C31 is used to filter the electrical signal input to the third chip.
可选地，所述电流电压监测模块包括第四芯片、电阻Rs、R101、R102、RA和R103、电容C101和C102；Optionally, the current and voltage monitoring module includes a fourth chip, resistors Rs, R101, R102, RA, and R103, and capacitors C101 and C102;
供电模块连接Rs的第一端和第四芯片的VIN+引脚，第四芯片的VIN-引脚连接Rs的第二端，Rs的第二端连接所述电流电压监测模块输出端和R101的第一端，R101的第二端连接R102的第一端，R102的第二端连接C101的第一端和RA的第一端，RA的第二端和C101的第二端连接公共端GND；The power supply module is connected to the first terminal of Rs and the VIN+ pin of the fourth chip, the VIN- pin of the fourth chip is connected to the second terminal of Rs, and the second terminal of Rs is connected to the output terminal of the current and voltage monitoring module and the first terminal of R101 One end, the second end of R101 is connected to the first end of R102, the second end of R102 is connected to the first end of C101 and the first end of RA, the second end of RA and the second end of C101 are connected to the common terminal GND;
第四芯片的OUT引脚连接R103的第一端和C102的第一端，C102的第二端和R103的第二端均连接公共端GND；The OUT pin of the fourth chip is connected to the first terminal of R103 and the first terminal of C102, and the second terminal of C102 and the second terminal of R103 are both connected to the common terminal GND;
其中，R101、R102和RA用于调节从所述电流电压监测模块输出端输出的电压值，C101和C102用于滤波。Wherein, R101, R102 and RA are used to adjust the voltage value output from the output terminal of the current and voltage monitoring module, and C101 and C102 are used for filtering.
可选地，所述第一预设电信号的电压为5V，电流为10A，所述第二预设电信号的电压为12V，电流为5A，所述第三预设电信号的电压为5V，电流为3.5A。Optionally, the first preset electrical signal has a voltage of 5V and a current of 10A, the second preset electrical signal has a voltage of 12V and a current of 5A, and the third preset electrical signal has a voltage of 5V , the current is 3.5A.
本实用新型的实施例提供了一种用于太阳能无人机的电源，该电源包括供电模块、电流电压监测模块、第一电压转换模块、第二电压转换模块和第三电压转换模块，通过第一电压转换模块、第二电压转换模块和第三电压转换模块将供电模块的电压进行DC/DC转换得到三种电信号，满足无人机电源多输出的要求。另一方面，通过电流电压监测模块对供电模块输出的电流进行分流，一方面将电流输入到第一电压转换模块和第二电压转换模块进行电压的转换，另一方面对供电模块输出的电流进行监控，保证了电路安全。The embodiment of the present invention provides a power supply for solar unmanned aerial vehicles, the power supply includes a power supply module, a current and voltage monitoring module, a first voltage conversion module, a second voltage conversion module and a third voltage conversion module, through the first The first voltage conversion module, the second voltage conversion module and the third voltage conversion module perform DC/DC conversion on the voltage of the power supply module to obtain three kinds of electrical signals, which meet the multi-output requirement of the UAV power supply. On the other hand, the current output by the power supply module is shunted through the current and voltage monitoring module. On the one hand, the current is input to the first voltage conversion module and the second voltage conversion module for voltage conversion; monitoring to ensure the safety of the circuit.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings show some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.
图1是本实用新型一个实施例提供的用于太阳能无人机的电源的结构示意图；Fig. 1 is a schematic structural diagram of a power supply for a solar unmanned aerial vehicle provided by an embodiment of the present invention;
图2是本实用新型另一个实施例提供的第一电压转换模块的电路结构示意图；Fig. 2 is a schematic diagram of the circuit structure of the first voltage conversion module provided by another embodiment of the present invention;
图3是本实用新型另一个实施例提供的第二电压转换模块的电路结构示意图；Fig. 3 is a schematic diagram of a circuit structure of a second voltage conversion module provided by another embodiment of the present invention;
图4是本实用新型另一个实施例提供的第三电压转换模块的电路结构示意图；Fig. 4 is a schematic diagram of a circuit structure of a third voltage conversion module provided by another embodiment of the present invention;
图5是本实用新型另一个实施例提供的电流电压监测模块的电路结构示意图。Fig. 5 is a schematic diagram of a circuit structure of a current and voltage monitoring module provided by another embodiment of the present invention.
具体实施方式Detailed ways
为使本实用新型实施例的目的、技术方案和优点更加清楚，下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
图1是本实施例提供的用于太阳能无人机的电源的结构示意图，参见图1，所述用于太阳能无人机的电源包括供电模块101、电流电压监测模块102、第一电压转换模块103、第二电压转换模块104和第三电压转换模块105；Figure 1 is a schematic structural diagram of a power supply for a solar drone provided in this embodiment, referring to Figure 1, the power supply for a solar drone includes a power supply module 101, a current and voltage monitoring module 102, and a first voltage conversion module 103. The second voltage conversion module 104 and the third voltage conversion module 105;
所述供电模块101连接所述电流电压监测模块102的输入端，所述电流电压监测模块102输出端连接所述第一电压转换模块103的输入端，所述第一电压转换模块103的输出端作为输出第一预设电信号的第一输出端A；The power supply module 101 is connected to the input end of the current and voltage monitoring module 102, the output end of the current and voltage monitoring module 102 is connected to the input end of the first voltage conversion module 103, and the output end of the first voltage conversion module 103 As a first output terminal A for outputting a first preset electrical signal;
所述电流电压监测模块102输出端还连接所述第二电压转换模块104的输入端，所述第二电压转换模块104的输出端作为输出第二预设电信号的第二输出端B；The output terminal of the current and voltage monitoring module 102 is also connected to the input terminal of the second voltage conversion module 104, and the output terminal of the second voltage conversion module 104 is used as a second output terminal B for outputting a second preset electrical signal;
所述第二电压转换模块104的输出端还连接所述第三电压转换模块105的输入端，所述第三电压转换模块105的输出端作为输出第三预设电信号的第三输出端C。The output terminal of the second voltage conversion module 104 is also connected to the input terminal of the third voltage conversion module 105, and the output terminal of the third voltage conversion module 105 is used as the third output terminal C for outputting the third preset electrical signal .
本实施例提供的电流电压监测模块、第一电压转换模块、第二电压转换模块和第三电压转换模块均由相应的电路组成。该电源将供电模块的直流电进行DC/DC转换，以满足太阳能无人机多输出的要求。The current and voltage monitoring module, the first voltage conversion module, the second voltage conversion module and the third voltage conversion module provided in this embodiment are all composed of corresponding circuits. The power supply converts the DC power of the power supply module to DC/DC to meet the multi-output requirements of the solar drone.
本实用新型的实施例提供了一种用于太阳能无人机的电源，该电源包括供电模块、电流电压监测模块、第一电压转换模块、第二电压转换模块和第三电压转换模块，通过第一电压转换模块、第二电压转换模块和第三电压转换模块将供电模块的电压进行DC/DC转换得到三种电信号，满足无人机电源多输出的要求。另一方面，通过电流电压监测模块对供电模块输出的电流进行分流，一方面将电流输入到第一电压转换模块和第二电压转换模块进行电压的转换，另一方面对供电模块输出的电流进行监控，保证了电路安全。The embodiment of the present invention provides a power supply for solar unmanned aerial vehicles, the power supply includes a power supply module, a current and voltage monitoring module, a first voltage conversion module, a second voltage conversion module and a third voltage conversion module, through the first The first voltage conversion module, the second voltage conversion module and the third voltage conversion module perform DC/DC conversion on the voltage of the power supply module to obtain three kinds of electrical signals, which meet the multi-output requirement of the UAV power supply. On the other hand, the current output by the power supply module is shunted through the current and voltage monitoring module. On the one hand, the current is input to the first voltage conversion module and the second voltage conversion module for voltage conversion; monitoring to ensure the safety of the circuit.
更进一步地，在上述实施例的基础上，图2示出了本实施例提供的第一电压转换模块的结构示意图，参见图2，所述第一电压转换模块包括第一芯片(图2中的U1)，晶体管Q1、Q2和Q3，电感L1，电阻R1、R2、R3、R4、R5和R26，电容C5、C6、C7、C8、C9、C10和C11；Furthermore, on the basis of the above-mentioned embodiments, FIG. 2 shows a schematic structural diagram of the first voltage conversion module provided in this embodiment. Referring to FIG. 2, the first voltage conversion module includes a first chip (in FIG. 2 U1), transistors Q1, Q2 and Q3, inductor L1, resistors R1, R2, R3, R4, R5 and R26, capacitors C5, C6, C7, C8, C9, C10 and C11;
所述电流电压监测模块输出端连接所述第一芯片的Vin引脚、第一芯片的RUN引脚、R1的第一端、Q1的漏极和Q2的漏极，R1的第二端连接第一芯片的OVLO引脚和R2的第一端，R2的第二端连接公共端GND；The output end of the current and voltage monitoring module is connected to the Vin pin of the first chip, the RUN pin of the first chip, the first end of R1, the drain of Q1 and the drain of Q2, and the second end of R1 is connected to the first The OVLO pin of a chip and the first terminal of R2, the second terminal of R2 is connected to the common terminal GND;
所述第一芯片的SW引脚连接C8的第一端、Q1的源极、Q2的源极、Q3的漏极、R4的第一端和L1的第一端，C8的第二端连接第一芯片的BOOST引脚；The SW pin of the first chip is connected to the first end of C8, the source of Q1, the source of Q2, the drain of Q3, the first end of R4 and the first end of L1, and the second end of C8 is connected to the first end of C8. BOOST pin of a chip;
所述第一芯片的TG引脚连接Q1的栅极和Q2的栅极，所述LTC3895的BG引脚连接Q3的栅极，Q3的源极接公共端GND；The TG pin of the first chip is connected to the gate of Q1 and the gate of Q2, the BG pin of the LTC3895 is connected to the gate of Q3, and the source of Q3 is connected to the common terminal GND;
L1的第二端连接所述第一输出端、C9第一端、第一芯片的Vfb引脚和第一芯片的SENSE-引脚，R4的第二端连接C9的第二端和第一芯片的SENSE+引脚；The second end of L1 is connected to the first output end, the first end of C9, the Vfb pin of the first chip and the SENSE- pin of the first chip, and the second end of R4 is connected to the second end of C9 and the first chip The SENSE+ pin;
第一芯片的VPRG引脚连接第一芯片的DRVSET引脚、第一芯片的DRVUV引脚、第一芯片的INTVcc引脚、R3的第一端和C6的第一端，C6的第二端连接公共端GND；The VPRG pin of the first chip is connected to the DRVSET pin of the first chip, the DRVUV pin of the first chip, the INTVcc pin of the first chip, the first end of R3 and the first end of C6, and the second end of C6 is connected to Common terminal GND;
第一芯片的SS引脚连接R3的第二端和C7的第一端，C7的第二端连接公共端GND；The SS pin of the first chip is connected to the second terminal of R3 and the first terminal of C7, and the second terminal of C7 is connected to the common terminal GND;
第一芯片的ITH引脚连接C10第一端和R26第一端，R26第二端连接C11的第一端，C11第二端连接C10第二端和R5的第一端，C10第二端还连接第一芯片的GND引脚，R5的第二端连接第一芯片的FREQ引脚；The ITH pin of the first chip is connected to the first end of C10 and the first end of R26, the second end of R26 is connected to the first end of C11, the second end of C11 is connected to the second end of C10 and the first end of R5, and the second end of C10 is connected to the first end of R5. Connect the GND pin of the first chip, and connect the second end of R5 to the FREQ pin of the first chip;
其中，R5用于调整第一芯片的工作频率，第一芯片的VPRG引脚连接第一芯片的INTVCC引脚固定输出为5V，R2用于过压保护监测，R1用于形成压差检查芯片工作开关，Q3、Q2、Q1和L1用于结合第一芯片将由所述电流电压监测模块输出端的电信号转变为第一预设电信号，从所述第一输出端输出。Among them, R5 is used to adjust the operating frequency of the first chip, the VPRG pin of the first chip is connected to the INTVCC pin of the first chip and the fixed output is 5V, R2 is used for overvoltage protection monitoring, and R1 is used to form a pressure drop to check the work of the chip The switches, Q3, Q2, Q1 and L1, are used in combination with the first chip to convert the electrical signal at the output end of the current and voltage monitoring module into a first preset electrical signal, which is output from the first output end.
其中，第一芯片的型号为TLC3895。第一输出端输出的电压VOUT为5V10A。Among them, the model of the first chip is TLC3895. The voltage VOUT output by the first output end is 5V10A.
更进一步地，在上述实施例的基础上，如图2所示，还包括由电容C1、C2、C3和C4组成的第一滤波单元和由电容C12、C13和C14组成的第二滤波单元；Furthermore, on the basis of the above-mentioned embodiment, as shown in FIG. 2 , it also includes a first filtering unit composed of capacitors C1, C2, C3 and C4 and a second filtering unit composed of capacitors C12, C13 and C14;
所述第一滤波单元连接在所述电流电压监测模块输出端和第一芯片的Vin引脚之间，所述电流电压监测模块输出端连接C1的第一端、C2的第一端、C3的第一端和C4的第一端，C1的第二端、C2的第二端、C3的第二端和C4的第二端均接公共端GND；The first filter unit is connected between the output end of the current and voltage monitoring module and the Vin pin of the first chip, and the output end of the current and voltage monitoring module is connected to the first end of C1, the first end of C2, and the first end of C3. The first terminal and the first terminal of C4, the second terminal of C1, the second terminal of C2, the second terminal of C3 and the second terminal of C4 are all connected to the common terminal GND;
所述第二滤波单元连接在L1第二端和第一输出端之间，L1第二端连接C12的第一端、C13的第一端和C14的第一端，C12的第二端、C13的第二端和C14的第二端均接公共端GND；The second filter unit is connected between the second end of L1 and the first output end, the second end of L1 is connected to the first end of C12, the first end of C13 and the first end of C14, the second end of C12, C13 Both the second end of C14 and the second end of C14 are connected to the common end GND;
其中，所述第一滤波单元用于对输入第一芯片的电信号进行滤波，所述第二滤波单元用于对从第一输出端输出的电信号进行滤波。Wherein, the first filtering unit is used for filtering the electrical signal input to the first chip, and the second filtering unit is used for filtering the electrical signal output from the first output terminal.
其中，图2中U1即为本实施例中的TLC3895芯片。其中，Q3Q2Q1L1高电压小电流变成低压大电流。电阻R1、R2、R3、R4、R5和R26，电容C5、C6、C7、C8、C9、C10和C11为第一芯片工作配套器件。Wherein, U1 in FIG. 2 is the TLC3895 chip in this embodiment. Among them, Q3Q2Q1L1 high voltage and low current becomes low voltage and high current. Resistors R1, R2, R3, R4, R5 and R26, capacitors C5, C6, C7, C8, C9, C10 and C11 are supporting devices for the first chip.
更进一步地，图3示出了本实施例提供的第二电压转换模块的电路结构示意图，参见图3，所述第二电压转换模块包括第二芯片(图3中的U2)，晶体管Q4、Q5、Q6和Q7，电感L2，电阻R6、R7、R8、R9、R10、R11和R12，电容C19、C20、C21、C22、C23、C24、C25和C26；Furthermore, FIG. 3 shows a schematic diagram of the circuit structure of the second voltage conversion module provided in this embodiment. Referring to FIG. 3 , the second voltage conversion module includes a second chip (U2 in FIG. 3 ), transistors Q4, Q5, Q6 and Q7, inductor L2, resistors R6, R7, R8, R9, R10, R11 and R12, capacitors C19, C20, C21, C22, C23, C24, C25 and C26;
所述电流电压监测模块输出端连接所述第二芯片的Vin引脚、第二芯片的RUN引脚、Q4的漏极、Q5的漏极和Q6的漏极，Q4的栅极连接第二芯片的NDRV引脚，Q4的源极连接第二芯片的DRVcc引脚和C19的第一端，C19的第二端连接公共端GND；The output end of the current and voltage monitoring module is connected to the Vin pin of the second chip, the RUN pin of the second chip, the drain of Q4, the drain of Q5 and the drain of Q6, and the gate of Q4 is connected to the second chip The NDRV pin of Q4, the source of Q4 is connected to the DRVcc pin of the second chip and the first terminal of C19, and the second terminal of C19 is connected to the common terminal GND;
所述第二芯片的SW引脚连接L2的第一端、Q5的源极、Q6的源极、Q3的漏极、C21的第一端和Q7的漏极，C21的第二端连接LTC3895的BOOST引脚、Q7的栅极连接第二芯片的BG引脚，Q7的源极连接公共端GND；The SW pin of the second chip is connected to the first end of L2, the source of Q5, the source of Q6, the drain of Q3, the first end of C21 and the drain of Q7, and the second end of C21 is connected to the LTC3895 The BOOST pin, the gate of Q7 are connected to the BG pin of the second chip, and the source of Q7 is connected to the common terminal GND;
所述第二芯片的TG引脚连接Q5的栅极和Q6的栅极；The TG pin of the second chip is connected to the gate of Q5 and the gate of Q6;
L2的第二端连接R9的第一端、C22的第一端和第二TLC3895的SENSE+引脚，R9的第二端连接所述第二输出端、C22的第二端、第二TLC3895的SENSE-引脚和第二TLC3895的EXTVcc引脚；The second end of L2 is connected to the first end of R9, the first end of C22, and the SENSE+ pin of the second TLC3895, and the second end of R9 is connected to the second output end, the second end of C22, and the SENSE pin of the second TLC3895. - pin and the EXTVcc pin of the second TLC3895;
第二芯片的ILIM引脚、第二芯片的VOLO引脚、第二芯片的MODE引脚和第二芯片的DRVUV引脚连接公共端GND；The ILIM pin of the second chip, the VOLO pin of the second chip, the MODE pin of the second chip and the DRVUV pin of the second chip are connected to the common terminal GND;
第二芯片的SS引脚连接C24的第一端，C24的第二端连接公共端GND，LTC3895的Vfb引脚连接R12第一端、R10第一端和C23第一端，R10第二端和C23第二端连接R9的第二端，R12第二端连接公共端GND；The SS pin of the second chip is connected to the first terminal of C24, the second terminal of C24 is connected to the common terminal GND, the Vfb pin of LTC3895 is connected to the first terminal of R12, the first terminal of R10 and the first terminal of C23, the second terminal of R10 and The second end of C23 is connected to the second end of R9, and the second end of R12 is connected to the common terminal GND;
第二芯片的ITH引脚连接R11第一端和C25第一端，R11第二端连接C26第一端，C26第二端和C25第二端均连接公共端GND；The ITH pin of the second chip is connected to the first terminal of R11 and the first terminal of C25, the second terminal of R11 is connected to the first terminal of C26, and the second terminal of C26 and the second terminal of C25 are connected to the common terminal GND;
第二芯片的CPUMP_EN引脚连接第二芯片的INTVcc引脚、R6第一端和C20第一端，C20第二端连接R8第一端、R7第一端和公共端GND，R6第二端连接第二芯片的PGOOD引脚，R8第二端连接第二芯片的FREQ引脚，R7第二端连接第二芯片的DRVSET引脚；The CPUMP_EN pin of the second chip is connected to the INTVcc pin of the second chip, the first terminal of R6 and the first terminal of C20, the second terminal of C20 is connected to the first terminal of R8, the first terminal of R7 and the common terminal GND, and the second terminal of R6 is connected to The PGOOD pin of the second chip, the second end of R8 is connected to the FREQ pin of the second chip, and the second end of R7 is connected to the DRVSET pin of the second chip;
其中，R8用于调整LTC3895的工作频率，Q5、Q6、Q7、L2、R10、R12和C23用于结合第二芯片将由所述电流电压监测模块输出端的电信号转变为第二预设电信号，从所述第二输出端输出。Among them, R8 is used to adjust the operating frequency of LTC3895, Q5, Q6, Q7, L2, R10, R12 and C23 are used to combine the second chip to convert the electrical signal at the output end of the current and voltage monitoring module into a second preset electrical signal, output from the second output terminal.
其中，第二芯片的型号为LTC3895。第二输出端输出的电压VOUT为12V5A。Wherein, the model of the second chip is LTC3895. The voltage VOUT output by the second output end is 12V5A.
更进一步地，在上述实施例的基础上，如图3所示，还包括由电容C15、C16、C17和C18组成的第三滤波单元和由电容C30、C27、C28和C29组成的第四滤波单元；Further, on the basis of the above-mentioned embodiment, as shown in FIG. 3 , it also includes a third filter unit composed of capacitors C15, C16, C17 and C18 and a fourth filter unit composed of capacitors C30, C27, C28 and C29 unit;
所述第三滤波单元连接在所述电流电压监测模块输出端和第二芯片的Vin引脚之间，所述电流电压监测模块输出端连接C15的第一端、C16的第一端、C17的第一端和C18的第一端，C15的第二端、C16的第二端、C17的第二端和C18的第二端均接公共端GND；The third filtering unit is connected between the output end of the current and voltage monitoring module and the Vin pin of the second chip, and the output end of the current and voltage monitoring module is connected to the first end of C15, the first end of C16, and the first end of C17. The first terminal and the first terminal of C18, the second terminal of C15, the second terminal of C16, the second terminal of C17 and the second terminal of C18 are all connected to the common terminal GND;
所述第四滤波单元连接在R9第二端和第二输出端之间，R9的第二端连接C30的第一端、C27的第一端、C28的第一端和C29的第一端，C30的第二端、C27的第二端、C28的第二端和C29的第二端均接公共端GND；The fourth filtering unit is connected between the second end of R9 and the second output end, the second end of R9 is connected to the first end of C30, the first end of C27, the first end of C28 and the first end of C29, The second terminal of C30, the second terminal of C27, the second terminal of C28 and the second terminal of C29 are all connected to the common terminal GND;
其中，所述第三滤波单元用于对输入第二芯片的电信号进行滤波，所述第四滤波单元用于对从第二输出端输出的电信号进行滤波。Wherein, the third filtering unit is used for filtering the electrical signal input to the second chip, and the fourth filtering unit is used for filtering the electrical signal output from the second output terminal.
图3中的U2即为本实施例中的第二芯片。其中，Q5、Q6、Q7、L2将高电压小电流变成低压大电流。电阻R6、R7、R8、R9、R10、R11和R12，电容C19、C20、C21、C22、C23、C24、C25和C26为第二芯片工作配套器件。U2 in FIG. 3 is the second chip in this embodiment. Among them, Q5, Q6, Q7, and L2 change the high voltage and small current into low voltage and high current. Resistors R6, R7, R8, R9, R10, R11 and R12, capacitors C19, C20, C21, C22, C23, C24, C25 and C26 are supporting devices for the second chip.
图4为本实施例中的第三电压转换模块的电路结构示意图，参见图4，所述第三电压转换模块包括第三芯片(图4中的U3)，电感L5，电阻R13、R14、R15和R16，电容C31、C32、C33、C34和C37；FIG. 4 is a schematic diagram of the circuit structure of the third voltage conversion module in this embodiment. Referring to FIG. 4, the third voltage conversion module includes a third chip (U3 in FIG. 4), an inductor L5, and resistors R13, R14, and R15. and R16, capacitors C31, C32, C33, C34 and C37;
所述第二电压转换模块的输出端连接C31的第一端、第三芯片的VIN1引脚、第三芯片的VIN引脚和第三芯片的EN/UV引脚，C31的第二端连接公共端GND；The output end of the second voltage conversion module is connected to the first end of C31, the VIN1 pin of the third chip, the VIN pin of the third chip and the EN/UV pin of the third chip, and the second end of C31 is connected to the common Terminal GND;
第三芯片的RT引脚连接R13第一端，R13的第二端连接公共端GND；The RT pin of the third chip is connected to the first terminal of R13, and the second terminal of R13 is connected to the common terminal GND;
第三芯片的TR/SS引脚连接C37的第一端，C37的第二端连接公共端GND；The TR/SS pin of the third chip is connected to the first terminal of C37, and the second terminal of C37 is connected to the common terminal GND;
第三芯片的INTVCC引脚连接C32第一端，C32的第二端连接公共端GND；The INTVCC pin of the third chip is connected to the first terminal of C32, and the second terminal of C32 is connected to the common terminal GND;
第三芯片的bst引脚连接C33第一端，第三芯片的SW引脚连接C33第二端，C33的第二端连接L5的第一端，L5的第二端连接C35的第一端和所述第三输出端，C35的第二端连接公共端GND；The bst pin of the third chip is connected to the first end of C33, the SW pin of the third chip is connected to the second end of C33, the second end of C33 is connected to the first end of L5, and the second end of L5 is connected to the first end of C35 and The third output terminal, the second terminal of C35 is connected to the common terminal GND;
第三芯片的PG引脚连接R16的第一端，第三芯片的BIAS引脚连接R16的第二端，R16的第二端连接所述第三输出端；The PG pin of the third chip is connected to the first end of R16, the BIAS pin of the third chip is connected to the second end of R16, and the second end of R16 is connected to the third output end;
第三芯片的FB引脚连接R15的第一端、R14的第一端和C34的第一端，R15的第二端连接公共端GND，R14的第二端和C34的第二端均连接所述第三输出端；The FB pin of the third chip is connected to the first terminal of R15, the first terminal of R14 and the first terminal of C34, the second terminal of R15 is connected to the common terminal GND, the second terminal of R14 and the second terminal of C34 are connected to the the third output terminal;
其中，R13用于调整第三芯片的工作频率，R14、R15和C34用于调整第三输出端的输出电压，C31用于对输入至第三芯片的电信号进行滤波。Wherein, R13 is used to adjust the operating frequency of the third chip, R14, R15 and C34 are used to adjust the output voltage of the third output terminal, and C31 is used to filter the electrical signal input to the third chip.
图4中的U3为第三芯片，型号为LT8610AB。R14、R15和C34决定输出电压值。电感L5、电容C31、C32、C33、C34和C37为第三芯片工作配套器件。U3 in Figure 4 is the third chip, the model is LT8610AB. R14, R15 and C34 determine the output voltage value. Inductor L5, capacitors C31, C32, C33, C34 and C37 are supporting devices for the third chip.
图5示出了本市实施例中的电流电压监测模块的电路结构示意图，参见图5，所述电流电压监测模块包括第四芯片(图5中的U4)、电阻Rs、R101、R102、RA和R103、电容C101和C102；Fig. 5 shows the schematic diagram of the circuit structure of the current and voltage monitoring module in the embodiment of this city, referring to Fig. 5, the described current and voltage monitoring module comprises the 4th chip (U4 in Fig. 5), resistance Rs, R101, R102, RA and R103, capacitors C101 and C102;
供电模块连接Rs的第一端和第四芯片的VIN+引脚，第四芯片的VIN-引脚连接Rs的第二端，Rs的第二端连接所述电流电压监测模块输出端和R101的第一端，R101的第二端连接R102的第一端，R102的第二端连接C101的第一端和RA的第一端，RA的第二端和C101的第二端连接公共端GND；The power supply module is connected to the first terminal of Rs and the VIN+ pin of the fourth chip, the VIN- pin of the fourth chip is connected to the second terminal of Rs, and the second terminal of Rs is connected to the output terminal of the current and voltage monitoring module and the first terminal of R101 One end, the second end of R101 is connected to the first end of R102, the second end of R102 is connected to the first end of C101 and the first end of RA, the second end of RA and the second end of C101 are connected to the common terminal GND;
第四芯片的OUT引脚连接R103的第一端和C102的第一端，C102的第二端和R103的第二端均连接公共端GND；The OUT pin of the fourth chip is connected to the first terminal of R103 and the first terminal of C102, and the second terminal of C102 and the second terminal of R103 are both connected to the common terminal GND;
其中，R101、R102和RA用于调节从所述电流电压监测模块输出端输出的电压值，C101和C102用于滤波。Wherein, R101, R102 and RA are used to adjust the voltage value output from the output terminal of the current and voltage monitoring module, and C101 and C102 are used for filtering.
图5为电流电压监测模块的电路结构示意图，其中，U4即为本实施例中的第四芯片，型号为INA196。其中，ViN+为芯片输入，VIN-为芯片的输出，RS为采集电路，R101、R102和RA把高电压按一定比例缩小，C101和C102是滤波电容，R103把输出的电路值转换电压值，阻值不同可输出不同电压。SI为用于对电流进行监测的端口，SV为用于对电压进行监测的端口。FIG. 5 is a schematic diagram of the circuit structure of the current and voltage monitoring module, wherein U4 is the fourth chip in this embodiment, and its model is INA196. Among them, ViN+ is the input of the chip, VIN- is the output of the chip, RS is the acquisition circuit, R101, R102 and RA reduce the high voltage by a certain ratio, C101 and C102 are filter capacitors, R103 converts the output circuit value into a voltage value, and the resistance Different values can output different voltages. SI is a port for monitoring current, and SV is a port for monitoring voltage.
更进一步地，在上述实施例的基础上，所述第一预设电信号的电压为5V，电流为10A，所述第二预设电信号的电压为12V，电流为5A，所述第三预设电信号的电压为5V，电流为3.5A。Furthermore, on the basis of the above-mentioned embodiment, the voltage of the first preset electrical signal is 5V, and the current is 10A, the voltage of the second preset electrical signal is 12V, and the current is 5A, and the third preset electrical signal The voltage of the preset electric signal is 5V, and the current is 3.5A.
本实施例提供的太阳能无人机电源采用宽范围电压输入，通过第四芯片电平转换和DCDC来实现输出电源电压12V、5A(第二输出端)，5V、10A(第一输出端)和5V、3.5A(第三输出端)的多路输出。The solar drone power supply provided by this embodiment adopts a wide range of voltage input, and realizes the output power supply voltage of 12V, 5A (second output terminal), 5V, 10A (first output terminal) and Multiple outputs of 5V, 3.5A (third output terminal).
由于工作电流较大(最高达150A)的特点，因此我们选用主要应用在测量和电平转换方向的第四芯片解决大电流的输入问题，通过第四芯片分流后采用LTC3895和第三芯片的宽输入DCDC芯片转换到我们需要的5V 3.5A、12V 5A、5V 10A三路输出供无人机供电使用。Due to the characteristics of large working current (up to 150A), we choose the fourth chip, which is mainly used in the direction of measurement and level conversion, to solve the problem of large current input. After shunting through the fourth chip, we use the wide The input DCDC chip is converted to the 5V 3.5A, 12V 5A, 5V 10A three-way output we need for the power supply of the drone.
第四芯片将差分输入电压转换为电流输出，这个电流被转换成电压，外加一个负载电阻，使增益从1增加到100以上。它在测量和电平转换方面有创造性的应用。同时INA169宽电压范围输入从2.7V到60V(一般我们机载电源电压范围在7V到40V)，INA169的工作方式是电流工作模式所以不会因为电流长时间过大而损坏。A fourth chip converts the differential input voltage to a current output, this current is converted to a voltage, and a load resistor is added to increase the gain from 1 to over 100. It has creative applications in measurement and level shifting. At the same time, the wide voltage range of INA169 input is from 2.7V to 60V (generally, the voltage range of our on-board power supply is 7V to 40V), and the working mode of INA169 is current working mode, so it will not be damaged due to excessive current for a long time.
本实施例提供的太阳能无人机带能源通过DC/DC实现了太阳能无人机所需要的5v、3.5A，5v、10A和12V、5A的输出。The energy source of the solar drone provided in this embodiment realizes the output of 5v, 3.5A, 5v, 10A, 12V, and 5A required by the solar drone through DC/DC.
最后应说明的是：以上各实施例仅用以说明本实用新型的实施例的技术方案，而非对其限制；尽管参照前述各实施例对本实用新型的实施例进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本实用新型的实施例各实施例技术方案的范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present utility model, rather than limit it; Those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions The scope of the technical solutions of the various embodiments of the embodiments of the present utility model.
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| CN115561650B (en) * | 2022-08-24 | 2025-01-07 | 山西中科智能控制技术研究院有限公司 | Battery electric quantity acquisition circuit, battery electric quantity monitoring system and method |
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