CN206992950U - A kind of voltage control system for ultraviolet light detection - Google Patents
A kind of voltage control system for ultraviolet light detection Download PDFInfo
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- CN206992950U CN206992950U CN201720772648.XU CN201720772648U CN206992950U CN 206992950 U CN206992950 U CN 206992950U CN 201720772648 U CN201720772648 U CN 201720772648U CN 206992950 U CN206992950 U CN 206992950U
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- voltage
- ultraviolet light
- switching power
- power circuit
- high pressure
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Abstract
The utility model discloses a kind of voltage control system for ultraviolet light detection, it includes voltage source, switching power circuit, high pressure sample circuit and micro-control module.Switching power circuit is using the voltage that voltage source exports as input, and export the voltage for maintaining ultraviolet light sensing tube work, high pressure sample circuit samples to the output voltage of switching power circuit and obtains sampled signal, after micro-control module carries out data processing to the sampled signal, obtain the actual value of switching power circuit output voltage, actual value further according to switching power circuit output voltage and the difference between the setting value of ultraviolet light sensing tube operating voltage, the pwm signal for exporting certain dutycycle carry out the output voltage of adjusting switch power circuit.Therefore, the voltage that the utility model can be worked by adjusting ultraviolet light sensing tube in real time, avoids the influence of the environmental factors such as temperature and humidity, and in controllable scope, ensures the stability of the voltage of ultraviolet light sensing tube work, increases the Acceptable life of device product.
Description
Technical field
Ultraviolet technical field of light detection is the utility model is related to, the more particularly to voltage for ultraviolet light detection controls system
System.
Background technology
Existing ultraviolet detection device and equipment are typically directly to use hardware circuit, 280 are provided for ultraviolet light sensing tube~
350VDC operating voltages.This mode proposes very high request to hardware design, it is desirable to which hardware circuit is by rings such as temperature and humidity
The influence of border factor is low, ensures that it provides the operating voltage of adjustable stabilization for ultraviolet light sensing tube, and still, hardware circuit is easily
Influenceed by hardware aging, stable operating voltage can not be little by little provided for ultraviolet light sensing tube, influence the usability of device product
Energy.
Utility model content
The purpose of this utility model is：Solve in existing ultraviolet detection device or equipment, use hardware circuit directly for
Ultraviolet light sensing tube provides the mode of 280~350VDC operating voltage, it is necessary to consider the environment such as temperature and humidity, hardware aging etc.
Influence of the factor to output voltage, and it is not easy the technical problem adjusted in real time to output voltage.
In order to realize above-mentioned purpose of utility model, the utility model provides following technical scheme：
A kind of voltage control system for ultraviolet light detection, it includes,
Voltage source；
Switching power circuit, for using the voltage that the voltage source exports as input, exporting for maintaining ultraviolet light sensing tube
The voltage of work；
High pressure sample circuit, for being sampled to the output voltage of the switching power circuit, obtain sampled signal；
Micro-control module, for carrying out calculation process to the sampled signal of the high pressure sample circuit, obtain the switch
The actual value of power circuit output voltage, and according to the actual value and ultraviolet light sensing tube work of the switching power circuit output voltage
Make the difference between the setting value of voltage, adjust the duty of the pwm signal for controlling the switching power circuit output voltage
Than.
According to a kind of specific embodiment, the utility model is used in the voltage control system of ultraviolet light detection, described
Switching power circuit includes,
High pressure generator, for using the voltage that the voltage source exports as input, exporting for maintaining ultraviolet light sensing tube work
The voltage of work；
PWM adjusts circuit, for the pwm signal exported according to the micro-control module, adjusts the high pressure generator
Output voltage.
Further, the micro-control module is changed by A/D the sampled signal being converted to voltage data, and according to
The sampled signal and the mapping relations of the high pressure generator output voltage, calculate the high pressure generator output voltage
Actual value.
According to a kind of specific embodiment, the utility model is used in the voltage control system of ultraviolet light detection, described
Voltage source is connected with the micro-control module, and operating voltage is provided for the micro-control module.
Compared with prior art, the beneficial effects of the utility model：
1st, the utility model is used in the voltage control system of ultraviolet light detection, and switching power circuit is exported with voltage source
Voltage is input, and exports the voltage for maintaining ultraviolet light sensing tube work, output electricity of the high pressure sample circuit to switching power circuit
Pressure samples and obtains sampled signal, and after micro-control module carries out data processing to the sampled signal, it is defeated to obtain switching power circuit
Go out the actual value of voltage, further according to the setting value of the actual value and ultraviolet light sensing tube operating voltage of switching power circuit output voltage
Between difference, the pwm signal for exporting certain dutycycle carrys out the output voltage of adjusting switch power circuit.Therefore, this practicality is new
The voltage that type can be worked by adjusting ultraviolet light sensing tube in real time, avoids the influence of the environmental factors such as temperature and humidity, and can
In the range of control, ensure the stability of the voltage of ultraviolet light sensing tube work, increase the Acceptable life of device product.
2nd, the utility model is used in the voltage control system of ultraviolet light detection, and high pressure sample circuit directly uses transformer
The output voltage of switching power circuit is depressured, and using the voltage after decompression as sampled signal.Therefore, the utility model
Structure it is simple, manufacturing cost is not high, convenient to carry out.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is a kind of structural representation of embodiment of the present utility model.
Embodiment
The utility model is described in further detail with reference to test example and embodiment.But should not be by this
The scope for being interpreted as the above-mentioned theme of the utility model is only limitted to following embodiment, all to be realized based on the utility model content
Technology belongs to the scope of the utility model.
Structural representation of the present utility model with reference to shown in Fig. 1；Wherein, the utility model is used for the electricity of ultraviolet light detection
Pressure control system, it includes voltage source, switching power circuit, high pressure sample circuit and micro-control module.
Wherein, switching power circuit is exported for maintaining ultraviolet light sensing tube to work using the voltage that voltage source exports as input
Voltage.Sampled signal is transferred to by high pressure sample circuit by being sampled to the output voltage of the switching power circuit
Micro-control module.Micro-control module obtains switching power circuit output voltage according to the sampled signal of the high pressure sample circuit
Actual value, and according between the actual value of the switching power circuit output voltage and the setting value of ultraviolet light sensing tube operating voltage
Difference, the dutycycle of the pwm signal for controlling the switching power circuit output voltage is adjusted, the switching power circuit is according to micro-
The pwm signal of control module output, to adjust its output voltage.
Therefore, the voltage that the utility model can be worked by adjusting ultraviolet light sensing tube in real time, avoids switching power circuit
Influenceed by environmental factors such as temperature and humidity, the operating voltage for being ultraviolet light sensing tube offer is unstable.Moreover, controllable
In the range of, the utility model can increase the Acceptable life of device product.
The utility model be used for ultraviolet light detection voltage control system in, voltage source by being connected with micro-control module,
And provide operating voltage for the micro-control module.
A kind of structural representation of embodiment of the present utility model with reference to shown in Fig. 2；Wherein, the utility model is used for purple
In the voltage control system of outer light detection, switching power circuit includes high pressure generator and PWM regulation circuits.
Wherein, high pressure generator exports what is worked for maintaining ultraviolet light sensing tube using the voltage that voltage source exports as input
Voltage.PWM regulation circuits are connected with micro-control module, receive the pwm signal of micro-control module output, and according to the pwm signal
Dutycycle, adjust the output voltage of the high pressure generator.The utility model is used in the voltage control system of ultraviolet light detection,
High pressure generator uses boost dc/dc converter.
When implementing, micro-control module is changed by A/D the sampled signal being converted to voltage data, and is adopted according to this
The mapping relations of sample signal and high pressure generator output voltage, calculate the actual value of high pressure generator output voltage, then with purple
The setting value of outer photosensitive tube operating voltage is compared, so as to obtain error voltage.Calculated accordingly further according to the error voltage
The dutyfactor value of pwm signal, and then the pwm signal with the dutyfactor value is fed back into PWM regulation circuits, and it is defeated to reach regulation
Go out the purpose of voltage.
Claims (4)
- A kind of 1. voltage control system for ultraviolet light detection, it is characterised in that including,Voltage source；Switching power circuit, for using the voltage that the voltage source exports as input, exporting for maintaining ultraviolet light sensing tube to work Voltage；High pressure sample circuit, for being sampled to the output voltage of the switching power circuit, obtain sampled signal；Micro-control module, for carrying out calculation process to the sampled signal of the high pressure sample circuit, obtain the Switching Power Supply The actual value of circuit output voltage, and according to the actual value and ultraviolet light sensing tube work electricity of the switching power circuit output voltage Difference between the setting value of pressure, adjust the dutycycle of the pwm signal for controlling the switching power circuit output voltage.
- 2. the voltage control system for ultraviolet light detection as claimed in claim 1, it is characterised in that the switch power supply Road includes,High pressure generator, for using the voltage that the voltage source exports as input, exporting what is worked for maintaining ultraviolet light sensing tube Voltage；PWM adjusts circuit, for the pwm signal exported according to the micro-control module, adjusts the output of the high pressure generator Voltage.
- 3. the voltage control system for ultraviolet light detection as claimed in claim 2, it is characterised in that the micro-control module Changed by A/D and the sampled signal is converted into voltage data, and it is defeated according to the sampled signal and the high pressure generator Go out the mapping relations of voltage, calculate the actual value of the high pressure generator output voltage.
- 4. the voltage control system for being used for ultraviolet light detection as described in one of claims 1 to 3, it is characterised in that the electricity Potential source is connected with the micro-control module, and operating voltage is provided for the micro-control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720772648.XU CN206992950U (en) | 2017-06-29 | 2017-06-29 | A kind of voltage control system for ultraviolet light detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720772648.XU CN206992950U (en) | 2017-06-29 | 2017-06-29 | A kind of voltage control system for ultraviolet light detection |
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| Publication Number | Publication Date |
|---|---|
| CN206992950U true CN206992950U (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720772648.XU Active CN206992950U (en) | 2017-06-29 | 2017-06-29 | A kind of voltage control system for ultraviolet light detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276392A (en) * | 2017-06-29 | 2017-10-20 | 成都旭光光电技术有限责任公司 | A kind of voltage control system detected for ultraviolet light |
-
2017
- 2017-06-29 CN CN201720772648.XU patent/CN206992950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276392A (en) * | 2017-06-29 | 2017-10-20 | 成都旭光光电技术有限责任公司 | A kind of voltage control system detected for ultraviolet light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210407 Address after: No.2-13, Shiyang Road, Yangma Town, Jianyang City, Chengdu, Sichuan 610000 Patentee after: Chengdu ultraviolet photoelectric technology Co.,Ltd. Address before: No. 333, Xingong Avenue, East Industrial District, Xindu, Chengdu, Sichuan 610500 Patentee before: CHENGDU XUGUANG ELECTRONIC EQUIPMENTS Co.,Ltd. |
|
| TR01 | Transfer of patent right |