CN110034661B - Multipath output direct current power supply device - Google Patents
Multipath output direct current power supply device Download PDFInfo
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- CN110034661B CN110034661B CN201810864304.0A CN201810864304A CN110034661B CN 110034661 B CN110034661 B CN 110034661B CN 201810864304 A CN201810864304 A CN 201810864304A CN 110034661 B CN110034661 B CN 110034661B
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- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Voltage And Current In General (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a multipath output direct current power supply device which is characterized by comprising a shell, a display panel and a power supply circuit board, wherein the shell is provided with a power supply circuit board; the display panel is arranged on the side surface of the shell and comprises at least eight groups of touch keys and eight groups of output interfaces, each group of touch keys respectively control the output end of the power circuit board, and each group of output interfaces are respectively and correspondingly connected with the output end of each power circuit board; the power circuit board is arranged in the shell, a stepless voltage regulating circuit is arranged on the power circuit board, the input end of the stepless voltage regulating circuit is connected with at least eight groups of touch keys, and the stepless voltage regulating circuit is used for regulating a direct-current output power supply; the power circuit board comprises a power interface which is connected with an external direct current power supply. The beneficial effects are that: the output direct current power supply can realize multi-path simultaneous output, and the precision can be controlled by touch control, so that the method has the advantages of wide application range, low power consumption and strong practicability.
Description
Technical Field
The invention relates to the technical field of direct-current power supply devices, in particular to a multi-output direct-current power supply device.
Background
In the modern integrated circuit manufacturing process, a simulation and debugging link is always provided, and a direct current power supply is used in the process, wherein the direct current power supply is a device for maintaining stable and constant voltage and current in a circuit, such as a dry battery, a storage battery, a direct current generator and the like.
At present, the following problems exist in the commercial dc power supply: (1) fewer output channels, typically 2-3 outputs; (2) the output accuracy is not controllable; with the complexity of integrated circuit development design, most of the integrated circuits currently use a plurality of channels with different voltage outputs during test and debugging, and users are limited in the use process.
Disclosure of Invention
In order to solve the above problems in the prior art, a multi-output dc power supply device is provided.
The specific technical scheme is as follows:
a multi-output direct current power supply device is characterized by comprising a shell, a display panel and a power supply circuit board;
The display panel is arranged on the side surface of the shell and comprises at least eight groups of touch keys and eight groups of output interfaces, each group of touch keys respectively control the output end of the power circuit board, and each group of output interfaces are respectively and correspondingly connected with the output end of each power circuit board;
the power circuit board is arranged in the shell, a stepless voltage regulating circuit is arranged on the power circuit board, the input end of the stepless voltage regulating circuit is connected with at least eight groups of touch keys, and the stepless voltage regulating circuit is used for regulating a direct-current output power supply;
The power circuit board comprises a power interface which is connected with an external direct current power supply.
Preferably, the display panel further comprises at least eight indicator lamps, and each indicator lamp indicates through a nixie tube.
Preferably, in a preset first mode, the indicator light indicates red color to indicate that a positive power voltage is correspondingly output;
In a preset second mode, the indicator light indicates green, which indicates that a negative power supply voltage is correspondingly output.
Preferably, the first mode is a positive voltage gear mode;
The second mode is a negative voltage gear mode.
Preferably, each group of output interfaces corresponds to each group of touch keys one by one; and/or
Each group of output interfaces is respectively in one-to-one correspondence with each indicator lamp.
Preferably, each set of touch keys includes a positive voltage touch key and a negative voltage touch key.
Preferably, the stepless voltage regulating circuit comprises:
The first pin of the processing chip is connected with the third pin of the processing chip through a first resistor, the second pin of the processing chip is connected with the grounding end through a first capacitor, the third pin of the processing chip is connected with the direct current power supply, the fourth pin of the processing chip is connected with the grounding end, the fifth pin of the processing chip is connected with the positive voltage touch key through a second capacitor, a third capacitor and a second resistor in sequence, the seventh pin of the processing chip is connected with the first resistor, the eighth pin of the processing chip is connected with the grounding end, and the sixth pin of the processing chip outputs an oscillating square wave;
The fourth capacitor is connected between the third pin of the processing chip and the grounding end;
The fifth capacitor is connected between the third pin of the processing chip and the grounding end;
and/or, the stepless voltage regulating circuit comprises:
The first pin of the processing chip is connected with the third pin of the processing chip through a first resistor, the second pin of the processing chip is connected with the grounding end through a first capacitor, the third pin of the processing chip is connected with the direct current power supply, the fourth pin of the processing chip is connected with the grounding end, the fifth pin of the processing chip is connected with the negative voltage touch key through a second capacitor and a second resistor in sequence, the seventh pin of the processing chip is connected with the first resistor, the eighth pin of the processing chip is connected with the grounding end, and the sixth pin of the processing chip outputs an oscillating square wave;
The third capacitor is connected between a third pin of the processing chip and the grounding end;
and the fourth capacitor is connected between the third pin of the processing chip and the grounding end.
Preferably, the power circuit board further includes:
the input end of the voltage regulating signal processing unit is connected with the sixth pin of the processing chip;
The input end of the analog-to-digital converter is connected with the output end of the voltage regulating signal processing unit;
the input end of the error amplifier is connected with the output end of the analog-to-digital converter;
The input end of the integrating amplifier is connected with the output end of the error amplifier;
The input end of the power amplifier is connected with the output end of the integrating amplifier, and the output end of the power amplifier is correspondingly connected with the output end of the power circuit board.
Preferably, at least one cooling fan is arranged in the multi-output direct current power supply device, and each cooling fan is electrically connected with the power supply circuit board.
Preferably, the housing is made of an aluminum alloy material.
The technical scheme of the invention has the beneficial effects that: the output direct current power supply can realize multi-path simultaneous output, and the precision can be controlled by touch control, so that the method has the advantages of wide application range, low power consumption and strong practicability.
Drawings
Embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the invention.
FIG. 1 is a schematic diagram of the whole structure of a multi-output DC power supply device according to the present invention;
FIG. 2 is a schematic diagram of a display panel according to the present invention;
FIG. 3 is a side view of a multi-output DC power supply device according to the present invention;
FIG. 4 is a circuit diagram of an electrodeless voltage regulator circuit in accordance with the present invention;
Fig. 5 is a circuit diagram of a power circuit board according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
The invention comprises a multipath output direct current power supply device, which is characterized by comprising a shell 1, a display panel 2 and a power supply circuit board 3;
the display panel 2 is arranged on the side surface of the shell 1, the display panel 2 comprises at least eight groups of touch keys 20 and eight groups of output interfaces 21, each group of touch keys 20 respectively controls the output end of the power circuit board 3, and each group of output interfaces 21 is respectively and correspondingly connected with the output end of each power circuit board 3;
The power circuit board 3 is arranged in the shell 1, the power circuit board 3 is provided with a stepless voltage regulating power UNIT4, the input end of the stepless voltage regulating power UNIT4 is connected with at least eight groups of touch keys 20, and the stepless voltage regulating circuit 30 is used for regulating a direct current output power supply;
the POWER circuit board 3 includes a POWER interface 31, and the POWER interface 31 is connected to an external dc POWER source POWER module.
Through the technical scheme of the multi-output direct current power supply device, as shown in figures 1,2 and 3, the output voltage range of the multi-output direct current power supply device is +/-45V, and the output rated current is 2A, wherein the multi-output direct current power supply device comprises a shell 1, a display panel 2 and a power circuit board 3; the display panel 2 is electrically connected with the power circuit board 3, the display panel 2 comprises at least eight groups of touch keys 20 and eight groups of output interfaces 21, each group of touch keys 20 is respectively connected with the input end of the stepless voltage regulating circuit 30 and used as the input end of the power circuit board 3 to control the output end of the power circuit board 3 so as to regulate direct current output power, and each group of output interfaces 21 is correspondingly connected with the output end of the power circuit board 3 so as to provide a plurality of paths of direct current power channels, so that the simultaneous output of a plurality of paths can be realized, the precision can be controlled, and the application range is wide;
Further, the POWER circuit board 3 includes a POWER interface 31, the POWER interface 31 is connected to an external dc POWER supply POWER mode, the dc POWER supply POWER mode is used for providing a dc POWER supply voltage within a range of ±48V for the POWER circuit board 3, providing 500W POWER input for the whole multi-output dc POWER supply device, and reducing energy consumption for saving electricity, so that the POWER consumption of the whole multi-output dc POWER supply device is reduced, and the practicality is stronger.
In a preferred embodiment, the display panel 2 further comprises at least eight indicator lights 22, each indicator light 22 being indicated by a nixie tube. As shown in FIG. 2, the precision of 1mV can be precisely displayed by adopting a five-digit nixie tube, so that the precision of the whole multi-output direct current POWER supply device is improved, wherein the direct current POWER supply POWER MODEL provides +5V direct current POWER supply voltage for the display panel.
In a preferred embodiment, in a predetermined first mode, the indicator light 22 indicates red color, which indicates that a positive power voltage is outputted correspondingly; in a preset second mode, the indicator light 22 indicates green, which indicates that a negative power voltage is correspondingly output, wherein the first mode is a positive voltage gear mode, and the second mode is a negative voltage gear mode.
Specifically, as shown in fig. 2, the indicator light 22 is displayed by a five-digit nixie tube, and red and green colors are displayed, wherein the indicator light 22 indicates red, which indicates that the output port 21 of the display panel 2 outputs the positive power supply voltage, and the indicator light 22 indicates green, which indicates that the output port 21 of the display panel 2 outputs the negative power supply voltage.
In a preferred embodiment, each set of output interfaces 21 corresponds to each set of touch keys 20 one by one; and/or
Each group of output interfaces 21 corresponds to each indicator light 22 one by one.
Specifically, as shown in fig. 2, each set of touch keys 20 is used as an input end of the power circuit board 3, and corresponds to an output end of the power circuit board 3 one by one, that is, corresponds to each set of output interfaces 21, and similarly, each set of output interfaces 21 corresponds to each indicator lamp 22 one by one.
In a preferred embodiment, each set of TOUCH keys 20 includes a positive voltage TOUCH key TOUCH+ and a negative voltage TOUCH key TOUCH-.
Specifically, as shown in fig. 2, each group of TOUCH keys 20 includes a positive voltage TOUCH key touch+ and a negative voltage TOUCH key TOUCH-, each of which controls eight groups of output channels, the display panel 2 further includes a switch key 23, after the switch key 23 of the multi-output dc power supply device is pressed each time and turned on, all the output interfaces 21 return to a zero voltage state, if the positive voltage TOUCH key touch+ is continuously pressed for 5 seconds, the positive voltage shift mode is entered, that is, the indicator lamp 22 indicates red color and continuously blinks for 0.5 seconds, and when the positive voltage TOUCH key touch+ is pressed each time, the power supply voltage is increased by 3V, and is increased up to 45V, and when the negative voltage TOUCH key TOUCH is returned, the power supply voltage is reduced by 3V, and the power supply voltage is reduced to 0V at the lowest; after the setting is completed, the indicator light 22 does not flash; or then pressing again to increase or decrease 1mV;
further, if the negative voltage TOUCH key TOUCH-, is continuously pressed for 5 seconds, the negative voltage gear mode is entered, that is, the indicator light 22 indicates green, and continuously blinks for 0.5 seconds, the power supply voltage is increased by 3V, and is increased to 45V at the highest, and the power supply voltage is reduced by 3V, and is reduced to 0V at the lowest when the negative voltage TOUCH key TOUCH is pressed once and returned; after the setting is completed, the indicator light 22 does not flash; or then pressing again to increase or decrease 1mV;
Further, in order to save electricity and reduce power consumption, after the output interfaces are used, when all the output interfaces 21 do not output current, the output direct current power supply is transversely arranged for more than 30 minutes and can automatically return to zero, so that the power supply is saved, the power consumption of the whole device is reduced, and the reliability is high.
In a preferred embodiment, the stepless voltage regulating electric UNIT4 comprises:
The first pin OSCI of the processing chip U2ADA01AL is connected with the third pin VDD of the processing chip U2ADA01AL through a first resistor R647K omega, the second pin VCI of the processing chip U2ADA01AL is connected with the ground end GND through a first capacitor C5102, the third pin VDD of the processing chip U2ADA01AL is connected with the direct current POWER MODEL, the fourth pin GND of the processing chip U2ADA01AL is connected with the ground end GND, the fifth pin TOUCH INPUT of the processing chip U2ADA01AL is connected with the positive voltage TOUCH key uch+ through a second capacitor C4.1 mu F, a third capacitor C40.1 mu F and a second resistor R6510Ω in sequence, the seventh pin OUTPURT of the processing chip U2ADA01AL is connected with the first resistor R6K omega, the eighth pin CS2 of the processing chip U2ADA01AL is connected with the ground end GND, and the sixth pin CS1 of the processing chip U2ADA01AL outputs square waves;
A fourth capacitor C3470nF connected between the third pin VDD of the processing chip U2ADA01AL and the ground GND;
a fifth capacitor C40.1 μF connected between the third pin VDD of the processing chip U2ADA01AL and the ground GND;
And/or the stepless voltage regulating circuit comprises:
The first pin OSCI of the processing chip U2ADA01AL is connected with the third pin VDD of the processing chip U2ADA01AL through a first resistor R6100K omega, the second pin VCI of the processing chip U2ADA01AL is connected with the ground end GND through a first capacitor C5102, the third pin VDD of the processing chip U2ADA01AL is connected with the direct current POWER MODEL, the fourth pin GND of the processing chip U2ADA01AL is connected with the ground end GND, the fifth pin TOUCH INPUT of the processing chip U2ADA01AL is connected with the negative voltage TOUCH key TOUCH-, the seventh pin OUTPURT of the processing chip U2ADA01AL is connected with the first resistor R6100K omega, the eighth pin CS2 of the processing chip U2ADA01AL is connected with the ground end GND, and the sixth pin CS1 of the processing chip U2ADA01AL outputs an oscillating square wave;
A third capacitor C3470nF connected between the third pin VDD of the processing chip U2ADA01AL and the ground GND;
a fourth capacitor C40.1 μF is connected between the third pin VDD of the processing chip U2ADA01AL and the ground GND.
Specifically, as shown in fig. 4, due to the different parameters of the peripheral circuit of the processing chip U2ADA01AL, the oscillating square wave output by the sixth pin CS1 of the processing chip U2ADA01AL is different, wherein the duty cycle of the oscillating square wave in the positive voltage gear mode is twice that of the oscillating square wave in the negative voltage gear mode, so that the processing chip U2ADA01AL can accurately recognize, one oscillating square wave can be generated each time the touch key 20 is pressed, and the processing chip U2ADA01AL calculates and sends out a corresponding control command according to the number of oscillating square waves received in unit time.
In a preferred embodiment, the power circuit board 3 further comprises:
The input end of the voltage regulating signal processing unit MCU is connected with a sixth pin CS1 of the processing chip U2ADA01 AL;
The input end of the digital-to-analog converter DAC UNIT1 is connected with the output end of the voltage regulating signal processing UNIT MCU;
an error amplifier NULL AMP, the input end of which is connected with the output end of the digital-to-analog converter DAC UNIT 1;
An integrating amplifier INTEGARL AMP, the input end of the integrating amplifier INTEGARL AMP is connected with the output end of the error amplifier NULL AMP;
And the input end of the POWER amplifier POWER AMP is connected with the output end of the integrating amplifier INTEGARL AMP, and the output end of the POWER amplifier POWER AMP is correspondingly connected with the output end of the POWER circuit board 3.
Specifically, as shown in fig. 5, the voltage-regulating signal processing unit MCU receives a control command of the processing chip U2ADA01AL, calculates and sends the control command to the analog-to-digital converter 32, after the analog-to-digital converter 32 obtains the command, the analog-to-digital converter 32 generates a corresponding voltage signal to compare the feedback signal in the closed loop of the inverting input terminal and the non-inverting input terminal of the error amplifier NULLAMP, and then the signal generated by the error amplifier NULL AMP provides an error signal to the integrating amplifier INTEGARLAMP; the analog-digital conversion signal and the voltage feedback signal as voltage references are subjected to current sum operation at the inverting terminal of the error amplifier NULLAMP, wherein the polarities of the two current signals are opposite, the arithmetic sum error signal of the two signals is sent to the integrating amplifier INTEGARLAMP at the rear stage for integration and amplification, and finally the voltage signal generated by the integrating amplifier INTEGARL AMP is sent to the inverting input terminal of the power amplifier POWERAMP with fixed gain, and the voltage signal after power amplification is sent to the corresponding output terminal of the multi-output direct current power supply device;
Meanwhile, the direct-current POWER supply POWER MODEL provides +5V direct-current POWER supply voltage to the voltage-regulating signal processing UNIT MCU respectively, and the digital-to-analog converter DAC UNIT1; the direct-current POWER supply POWER supplies direct-current POWER supply voltage of +/-15V to the digital-to-analog converter DAC UNIT1, the error amplifier NULL AMP and the integrating amplifier INTEGARL AMP respectively; the direct-current POWER supply POWER MODEL provides a direct-current POWER supply voltage of +/-48V for the POWER amplifier, realizes multi-path simultaneous output, and is controllable in precision, wide in application range, low in POWER consumption and high in practicability.
In a preferred embodiment, at least one cooling fan 4 is provided in the multi-output dc power supply device, each cooling fan 4 being electrically connected to the power circuit board 3. In the case 1, except one side of the display panel 2, a heat dissipation fan 4 is installed in the rest of the cases 1 to ensure that the POWER output in the case is in a normal state, wherein the direct current POWER supply POWER module provides a direct current POWER supply voltage of +12v to the heat dissipation fan 4.
In a preferred embodiment, the housing 1 is made of an aluminum alloy material. As shown in FIG. 1, the shell 1 further comprises a pair of handles 10, which is convenient to use, and the shell 1 is made of aluminum alloy material and is subjected to surface oxidation paint spraying process treatment, so that the effects of insulation and moisture resistance are achieved.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (8)
1. A multi-output direct current power supply device is characterized by comprising a shell, a display panel and a power supply circuit board;
the display panel is arranged on the side surface of the shell and comprises at least eight groups of touch keys and eight groups of output interfaces, each group of touch keys respectively control the output end of the power circuit board, and each group of output interfaces are respectively and correspondingly connected with the output end of each power circuit board;
the power circuit board is arranged in the shell, a stepless voltage regulating circuit is arranged on the power circuit board, the input end of the stepless voltage regulating circuit is connected with at least eight groups of touch keys, and the stepless voltage regulating circuit is used for regulating a direct-current output power supply;
the power circuit board comprises a power interface which is connected with an external direct current power supply;
each group of touch keys comprises a positive voltage touch key and a negative voltage touch key;
The stepless voltage regulating circuit comprises:
The first pin of the processing chip is connected with the third pin of the processing chip through a first resistor, the second pin of the processing chip is connected with the grounding end through a first capacitor, the third pin of the processing chip is connected with the direct current power supply, the fourth pin of the processing chip is connected with the grounding end, the fifth pin of the processing chip is connected with the positive voltage touch key through a second capacitor, a third capacitor and a second resistor in sequence, the seventh pin of the processing chip is connected with the first resistor, the eighth pin of the processing chip is connected with the grounding end, the sixth pin of the processing chip outputs an oscillating square wave, and the processing chip calculates and sends out a corresponding control instruction according to the number of the oscillating square waves received in unit time;
The fourth capacitor is connected between the third pin of the processing chip and the grounding end;
The fifth capacitor is connected between the third pin of the processing chip and the grounding end;
and/or, the stepless voltage regulating circuit comprises:
The processing chip is characterized in that a first pin of the processing chip is connected with a third pin of the processing chip through a first resistor, a second pin of the processing chip is connected with a grounding end through a first capacitor, a third pin of the processing chip is connected with the direct current power supply, a fourth pin of the processing chip is connected with the grounding end, a fifth pin of the processing chip is connected with the negative voltage touch key through a second capacitor and a second resistor in sequence, a seventh pin of the processing chip is connected with the first resistor, an eighth pin of the processing chip is connected with the grounding end, a sixth pin of the processing chip outputs an oscillating square wave, and the processing chip calculates and sends out a corresponding control instruction according to the oscillating square wave number received in unit time;
The third capacitor is connected between a third pin of the processing chip and the grounding end;
and the fourth capacitor is connected between the third pin of the processing chip and the grounding end.
2. The multiple output dc power supply device of claim 1, wherein the display panel further comprises at least eight indicator lights, each of the indicator lights being indicated by a nixie tube.
3. The multi-output dc power supply device according to claim 2, wherein in a first predetermined mode, the indicator light indicates red color to indicate that a positive power voltage is outputted correspondingly;
In a preset second mode, the indicator light indicates green, which indicates that a negative power supply voltage is correspondingly output.
4. The multiple-output dc power supply device according to claim 3, wherein the first mode is a positive voltage range mode;
The second mode is a negative voltage gear mode.
5. The multi-output direct current power supply device according to claim 2, wherein each group of the output interfaces corresponds to each group of the touch keys one by one; and/or
Each group of output interfaces is respectively in one-to-one correspondence with each indicator lamp.
6. The multiple output dc power supply device of claim 1, wherein the power circuit board further comprises:
the input end of the voltage regulating signal processing unit is connected with the sixth pin of the processing chip;
the input end of the digital-to-analog converter is connected with the output end of the voltage regulating signal processing unit;
The input end of the error amplifier is connected with the output end of the digital-to-analog converter;
The input end of the integrating amplifier is connected with the output end of the error amplifier;
The input end of the power amplifier is connected with the output end of the integrating amplifier, and the output end of the power amplifier is correspondingly connected with the output end of the power circuit board.
7. The multiple output dc power supply device according to claim 1, wherein at least one heat dissipating fan is provided in the multiple output dc power supply device, each of the heat dissipating fans being electrically connected to the power circuit board.
8. The multiple output dc power supply device of claim 1, wherein the housing is made of an aluminum alloy material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810864304.0A CN110034661B (en) | 2018-08-01 | 2018-08-01 | Multipath output direct current power supply device |
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| CN201810864304.0A CN110034661B (en) | 2018-08-01 | 2018-08-01 | Multipath output direct current power supply device |
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| CN110034661A CN110034661A (en) | 2019-07-19 |
| CN110034661B true CN110034661B (en) | 2024-05-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100913377B1 (en) * | 2009-04-06 | 2009-08-20 | (주)삼일피엔유 | Adapter type variable power supply |
| JP3198562U (en) * | 2015-03-31 | 2015-07-09 | シェンヂェン ワン ラン フォトエレクトリック カンパニー リミテッドＳｈｅｎｚｈｅｎ Ｗａｎ Ｌａｎｇ Ｐｈｏｔｏｅｌｅｃｔｒｉｃ Ｃｏ．， ＬＴＤ． | Car interior lights |
| WO2017041336A1 (en) * | 2015-09-10 | 2017-03-16 | 深圳市华宝新能源股份有限公司 | Intelligent charger and charging control circuit thereof |
| CN106685007A (en) * | 2017-01-24 | 2017-05-17 | 维沃移动通信有限公司 | Power supply control circuit, power supply method and mobile terminal for peripheral equipment |
| WO2018107506A1 (en) * | 2016-12-17 | 2018-06-21 | 中天海洋系统有限公司 | Direct-current to direct-current conversion device |
-
2018
- 2018-08-01 CN CN201810864304.0A patent/CN110034661B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100913377B1 (en) * | 2009-04-06 | 2009-08-20 | (주)삼일피엔유 | Adapter type variable power supply |
| JP3198562U (en) * | 2015-03-31 | 2015-07-09 | シェンヂェン ワン ラン フォトエレクトリック カンパニー リミテッドＳｈｅｎｚｈｅｎ Ｗａｎ Ｌａｎｇ Ｐｈｏｔｏｅｌｅｃｔｒｉｃ Ｃｏ．， ＬＴＤ． | Car interior lights |
| WO2017041336A1 (en) * | 2015-09-10 | 2017-03-16 | 深圳市华宝新能源股份有限公司 | Intelligent charger and charging control circuit thereof |
| WO2018107506A1 (en) * | 2016-12-17 | 2018-06-21 | 中天海洋系统有限公司 | Direct-current to direct-current conversion device |
| CN106685007A (en) * | 2017-01-24 | 2017-05-17 | 维沃移动通信有限公司 | Power supply control circuit, power supply method and mobile terminal for peripheral equipment |
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|---|---|
| CN110034661A (en) | 2019-07-19 |
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