CN207939231U - A kind of system of intelligent control power supply electric discharge - Google Patents
A kind of system of intelligent control power supply electric discharge Download PDFInfo
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- CN207939231U CN207939231U CN201820255872.6U CN201820255872U CN207939231U CN 207939231 U CN207939231 U CN 207939231U CN 201820255872 U CN201820255872 U CN 201820255872U CN 207939231 U CN207939231 U CN 207939231U
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Abstract
The utility model discloses a kind of systems of intelligent control power supply electric discharge, are related to the technical field of control electric discharge, including microprocessor, load circuit, current monitoring circuit, voltage feedback circuit：The load circuit includes metal-oxide-semiconductor, and the metal-oxide-semiconductor is configured as the load of electric discharge, and the input terminal of metal-oxide-semiconductor is configured as receiving the voltage of power supply to be discharged, and the output end of metal-oxide-semiconductor is connect with power cathode to be discharged；The output end current of the current monitoring circuit, including the first operational amplifier, metal-oxide-semiconductor is input to the first operational amplifier, the input terminal of the first operational amplifier output amplification voltage to microprocessor；The microprocessor is configured as generating pwm signal based on amplification voltage, and adjusts the pwm signal based on the amplification voltage.This product can be applied in any battery, automatically control electric discharge, be applicable to corona discharge, current control application scenario.
Description
Technical field
The utility model is related to control the technical field of electric discharge, specially a kind of system of intelligent control power supply electric discharge.
Background technology
In certain application fields, such as in the battery of model plane, battery is frequently necessary to large current charge, high current is put
Not so electricity will produce battery bulge, interior so battery has to discharge into safe storage voltage in the case of no use
The case where resistance increases, greatly shortens the service life of battery.
Traditional method is needed by being discharged with loads such as resistance, chargers, and this common discharge load is uncontrollable
Method can not real-time monitor whether battery falls below safe voltage, can not intelligent control battery voltage swing become
Change, size of current variation.
Utility model content
The purpose of this utility model is to provide a kind of systems of intelligent control power supply electric discharge, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions：
A kind of system of intelligent control power supply electric discharge, including control circuit, which is characterized in that control circuit includes microprocessor
Device, load circuit, current monitoring circuit, voltage feedback circuit：Load circuit includes metal-oxide-semiconductor, and MOS pipes are configured as electric discharge
Load, the input terminal of metal-oxide-semiconductor are configured as receiving the voltage of power supply to be discharged, the output end of MOS pipes and power supply to be discharged
Cathode connects；The output end current of current monitoring circuit, including the first operational amplifier, MOS pipes is input to the first operation amplifier
Device, the input terminal of the first operational amplifier output amplification voltage to microprocessor；Microprocessor is configured as based on amplification voltage
Generate pwm signal, and pwm signal is adjusted based on amplification voltage；Voltage feedback circuit, including digital analog converter, digital-to-analogue
Converter is used to PWM signals switching to analog signal, and analog signal feeds back to the poles G of metal-oxide-semiconductor.
Preferably, the current monitoring circuit further includes the first operational amplifier, and the output end current of metal-oxide-semiconductor is input to
One operational amplifier, the input terminal of the first operational amplifier output amplification voltage to microprocessor.
Preferably, further include detection circuit, the input of detection circuit includes the output of supply voltage, metal-oxide-semiconductor to be discharged
Electric current is held, is exported to the input terminal of microprocessor.
Preferably, voltage feedback circuit further includes second operational amplifier, and second operational amplifier incoming analog signal is defeated
Go out to the poles G of metal-oxide-semiconductor.
Preferably, control circuit further includes display screen, and display screen is used to show that detect in real time to include by supply voltage
Size variation, the size variation of output end current of metal-oxide-semiconductor, in series-connection power supplies the voltage, circuit of each single power supply work
Arbitrary combination in the group that state is formed.
Compared with prior art, the utility model has the beneficial effects that：The utility model is by monitoring the defeated of MOS pipes
Outlet electric current is used as load to discharge to control the gate voltage of metal-oxide-semiconductor by metal-oxide-semiconductor.The utility model, which can be applied, to be needed
In any battery to be discharged, automatically control electric discharge, it is ensured that cell voltage control is in safe voltage hereinafter, experience more human nature
Change, is intelligent.Control circuit can real-time monitor battery whether fall below safe voltage or less, can also intelligent control battery
Voltage swing variation, the size variation that discharge current can also be controlled, it is more intelligent, it is more portable.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is the schematic diagram of PWM wave.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model provides a kind of system and method for intelligent control power supply electric discharge.
The system of intelligent control power supply electric discharge includes control circuit, which is characterized in that control circuit includes microprocessor, bears
Carry circuit, current monitoring circuit, voltage feedback circuit：Load circuit includes metal-oxide-semiconductor, and metal-oxide-semiconductor is configured as the load of electric discharge,
The input terminal of metal-oxide-semiconductor is configured as receiving the voltage of power supply to be discharged, and the output end of metal-oxide-semiconductor connects with power cathode to be discharged
It connects；The output end current of current monitoring circuit, including the first operational amplifier, MOS pipes is input to the first operational amplifier, the
The output of one operational amplifier amplifies voltage to the input terminal of microprocessor；Microprocessor is configured as generating based on amplification voltage
Pwm signal, and pwm signal is adjusted based on amplification voltage；Voltage feedback circuit, including digital analog converter, digital analog converter
For PWM signals to be switched to analog signal, analog signal feeds back to the poles G of metal-oxide-semiconductor.
Control circuit further includes electric pressure converter, detection circuit, display screen, for being converted to supply voltage to be discharged
The operating voltage of microprocessor, operational amplifier；The input of detection circuit includes the output of supply voltage, metal-oxide-semiconductor to be discharged
The voltage of each single power supply in electric current, series-connection power supplies is held, is exported to the input terminal of microprocessor；Display screen is for showing real-time inspection
What is measured includes size variation, the working condition of the circuit institute group of the output end current by the size variation of supply voltage, metal-oxide-semiconductor
At group in arbitrary combination.Voltage feedback circuit further includes second operational amplifier, second operational amplifier access simulation
Signal, output to the poles G of metal-oxide-semiconductor.
In practical applications, P-channel metal-oxide-semiconductor can be used in metal-oxide-semiconductor, can also be N-channel MOS pipe.If P-channel MOS
Pipe, then input terminal of the poles S as metal-oxide-semiconductor, supply voltage to be discharged are connected on the poles S, output end of the poles D as metal-oxide-semiconductor；If N
Channel MOS tube, then input terminal of the poles D as metal-oxide-semiconductor, supply voltage to be discharged are connected on the poles D, output of the poles S as metal-oxide-semiconductor
End.Reversal amplifier and non-inverted amplifier can also be used in operational amplifier, can be discrete device, can also be semiconductor
Chip, as long as enlarging function can be realized.
The method of intelligent control power supply electric discharge includes the following steps：
S1:Supply voltage to be discharged is accessed into control circuit, electric pressure converter by supply voltage be converted to microprocessor,
The operating voltage of operational amplifier, supply voltage to be discharged are connected between the input terminal of metal-oxide-semiconductor and the output end of MOS pipes；
S2:The output end current of metal-oxide-semiconductor is connected with resistance R11 generates the output end voltage of metal-oxide-semiconductor, through the first operation amplifier
Device amplifies, one monitoring voltage of output to microprocessor；
S3:Microprocessor monitors voltage is according to one pwm signal with duty ratio of Program Generating, and program is according to monitoring electricity
The size of pressure adjusts the duty ratio size of pwm signal；
S4:Pwm signal is converted to analog signal by digital analog converter, obtains corresponding analog voltage signal；
S5:Analog voltage signal amplifies through second operational amplifier, feeds back to the poles G of metal-oxide-semiconductor.
Preferably, further include step S6, after metal-oxide-semiconductor is because accessing supply voltage normal work to be discharged, the poles G of MOS pipes
Voltage is gradually increased, and detection circuit detects the output end current of metal-oxide-semiconductor and the size of supply voltage in real time.
Preferably, further include step S61, when the output end current of metal-oxide-semiconductor reaches predetermined threshold value, the program control of microprocessor
The duty ratio of pwm signal for making output remains unchanged, and then the G pole tensions of metal-oxide-semiconductor is kept to stablize, and then holding metal-oxide-semiconductor
Output end current is stablized.
Preferably, further include step S62, when detection circuit detect metal-oxide-semiconductor output end current be more than predetermined threshold value, it is micro-
The duty ratio of the pwm signal of the program control output of processor reduces, and then turns down the G pole tensions of metal-oxide-semiconductor, and then promotes MOS
The output end current of pipe declines, until the output end current of metal-oxide-semiconductor drops to predetermined threshold value, return to step S7.
Preferably, further include step S7, when detection circuit detect supply voltage to be discharged fall below safe voltage with
Under, which is input to microprocessor by detection circuit, and the program stopped of microprocessor exports PWM signals, and then stops putting
Electricity.
Embodiment：As shown in Figure 1, operational amplifier uses non-inverted amplifier, metal-oxide-semiconductor to use N ditches in the present embodiment
Road metal-oxide-semiconductor, microprocessor use microcontroller.
In order to monitor the poles the S output end current in metal-oxide-semiconductor Q1, need to generate pressure drop with resistance R11, because of metal-oxide-semiconductor Q1
In the poles S output end current be several Amps, from power, the general formula of voltage, electric current, obtaining the resistance value of R11 necessarily needs
The voltage value Vi1 very littles wanted very little, can just power be made to reduce, and then therefore obtain, that is, the same phase of non-inverted operational amplifier
The voltage Vi1 of input terminal, so needing the first operational amplifier by voltage amplification, in the in-phase input end of non-inverted amplifier
One input voltage Vi1 of upper formation, input non-inverted amplifier in-phase input end, that is, in Fig. 2 IC2B pin 5
On, Vi1 is amplified by the first operational amplifier.By the amplification of non-inverted amplifier, an output electricity is obtained
Press Vo1.Amplification formula therein is Vo1=[(R9+R8)/R9] * Vi1.Output voltage Vo1 is input to microprocessor, that is,
In microcontroller.
Program, the PWM wave generated come real-time adjusting control according to the voltage swing of output voltage Vo1 are equipped in microcontroller
Duty ratio D, PWM wave be the modulated signal of pulse width, waveform and duty ratio as shown in Fig. 2, duty ratio refers at one
In pulse period, conduction time relative to the ratio shared by total time, that is, ratio of the high level relative to whole cycle, such as
D shown in Fig. 2 is duty ratio.Such as：When the voltage of Vo1 is 0.04V, 60% duty ratio is generated.The duty of PWM wave signal
It is calculated than being the data in the Safe operating area curves according to Vo1 voltages, the VGS (th) of metal-oxide-semiconductor and metal-oxide-semiconductor
's.Such as：Supply voltage is 25V, according in the Safe operating area curves of metal-oxide-semiconductor it can be seen that, the power supply electricity of 25V
It is 2A to press corresponding metal-oxide-semiconductor and can bear electric current, while the VGS (th) of metal-oxide-semiconductor is 2~4V.After then the utility model is started to work,
Duty ratio is gradually promoted, and the gate voltage of metal-oxide-semiconductor is made to be gradually increasing from 2V, and the discharge current of the poles the S output end of metal-oxide-semiconductor also can be by
Gradually rise, when detecting that the discharge current rises to 2A, duty ratio does not continue then to rise, and discharge current is made to stablize in 2A.
PWM wave is output and then enter the T-type filter of R1, R2, C1 composition, and in this process, T-type filter is as one
The PWM wave of number is converted to analog signal, obtains corresponding voltage by the D/A converter for converting digital signals into analog signal
Signal Vi2 inputs the in-phase input end into second operational amplifier and non-inverted amplifier IC2A, is put using non-inverted
The operational formula of big device IC2A, obtains output voltage Vo2, and operational formula therein is Vo2=[(R5+R10)/R10] * Vi2.
Output voltage Vo2 obtains voltage MOS_G again by the consumption of resistance R4, feeds back to the poles G of metal-oxide-semiconductor, that is, MOS
The gate voltage of pipe.So far, be achieved that by monitor MOS_S points electric current, come control MOS_G gate voltage one
A cycle.
It is further comprising the steps of in multiple discharge cycles：
Step S6：After metal-oxide-semiconductor is because accessing supply voltage normal work to be discharged, the G pole tensions of metal-oxide-semiconductor are gradually increased,
Detection circuit detects the output end current of metal-oxide-semiconductor and the size of supply voltage in real time.
Step S61：When the output end current of metal-oxide-semiconductor reaches predetermined threshold value, the PWM letters of the program control output of microprocessor
Number duty ratio remain unchanged, and then keep the G pole tensions of metal-oxide-semiconductor to stablize, and then keep the output end current of metal-oxide-semiconductor steady
It is fixed.
Step S62：When detection circuit detects that the output end current of metal-oxide-semiconductor is more than predetermined threshold value, the program of microprocessor
The duty ratio for controlling the pwm signal of output reduces, and then turns down the G pole tensions of metal-oxide-semiconductor, and then promotes the output end electricity of metal-oxide-semiconductor
Drop is flowed down, until the output end current of metal-oxide-semiconductor drops to predetermined threshold value, return to step S7.
Step S7：When detection circuit detects that supply voltage to be discharged falls below safe voltage hereinafter, detection circuit will
The signal is input to microprocessor, and the G voltages of the program stopped output pwm signal of microprocessor, metal-oxide-semiconductor drop to cut-off electricity
Pressure is just stopped, and then entire control circuit stops electric discharge, has also discharged into safe voltage, the program control of microprocessor at this time
Whole system power-off processed.
In this embodiment, detection circuit is the prior art, i.e. the detection project of detection circuit includes electricity to be discharged
The output end current of source voltage, metal-oxide-semiconductor, output end are connected to microprocessor, so the input terminal of detection circuit needs to access electricity
The output end of pressure converter, metal-oxide-semiconductor.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (4)
1. a kind of system of intelligent control power supply electric discharge, including control circuit, which is characterized in that the control circuit includes micro- place
Manage device, load circuit, current monitoring circuit, voltage feedback circuit：
The load circuit includes metal-oxide-semiconductor, and the metal-oxide-semiconductor is configured as the load of electric discharge, and the input terminal of metal-oxide-semiconductor is configured as connecing
The voltage of power supply to be discharged is received, the output end of metal-oxide-semiconductor is connect with power cathode to be discharged；
The current monitoring circuit, further includes the first operational amplifier, and the output end current of metal-oxide-semiconductor is input to the first operation amplifier
Device, the input terminal of the first operational amplifier output amplification voltage to microprocessor；
The microprocessor is configured as generating pwm signal based on input signal, and is adjusted based on the amplification voltage
The pwm signal；
The voltage feedback circuit, including digital analog converter, digital analog converter is used to pwm signal switching to analog signal, described
Analog signal feeds back to the poles G of metal-oxide-semiconductor.
2. the system of intelligent control power supply electric discharge according to claim 1, which is characterized in that further include detection circuit, inspection
The input of slowdown monitoring circuit includes the output end current of supply voltage to be discharged, metal-oxide-semiconductor, is exported to the input terminal of microprocessor.
3. the system of intelligent control power supply electric discharge according to claim 1, which is characterized in that the voltage feedback circuit is also
Including second operational amplifier, analog signal caused by the pwm signal of the second operational amplifier access microprocessor is defeated
Go out to the poles G of metal-oxide-semiconductor.
4. the system of intelligent control power supply according to claim 1 electric discharge, which is characterized in that the control circuit further includes
Display screen, display screen be used to show detect in real time include size variation by supply voltage, metal-oxide-semiconductor output end current
Arbitrary combination in the group that the voltage of each single power supply, the working condition of circuit are formed in size variation, series-connection power supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255872.6U CN207939231U (en) | 2018-02-13 | 2018-02-13 | A kind of system of intelligent control power supply electric discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255872.6U CN207939231U (en) | 2018-02-13 | 2018-02-13 | A kind of system of intelligent control power supply electric discharge |
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| Publication Number | Publication Date |
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| CN207939231U true CN207939231U (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820255872.6U Expired - Fee Related CN207939231U (en) | 2018-02-13 | 2018-02-13 | A kind of system of intelligent control power supply electric discharge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233486A (en) * | 2018-02-13 | 2018-06-29 | 深圳市猎户者创新科技有限公司 | A kind of system and method for intelligent control power supply electric discharge |
| CN113659805A (en) * | 2021-08-16 | 2021-11-16 | 中国人民解放军战略支援部队信息工程大学 | Filter capacitor rapid discharge circuit of numerical control power supply |
-
2018
- 2018-02-13 CN CN201820255872.6U patent/CN207939231U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233486A (en) * | 2018-02-13 | 2018-06-29 | 深圳市猎户者创新科技有限公司 | A kind of system and method for intelligent control power supply electric discharge |
| CN108233486B (en) * | 2018-02-13 | 2024-08-16 | 深圳市猎户者创新科技有限公司 | System and method for intelligently controlling power supply discharge |
| CN113659805A (en) * | 2021-08-16 | 2021-11-16 | 中国人民解放军战略支援部队信息工程大学 | Filter capacitor rapid discharge circuit of numerical control power supply |
| CN113659805B (en) * | 2021-08-16 | 2023-06-20 | 中国人民解放军战略支援部队信息工程大学 | Filter capacitor quick discharging circuit of numerical control power supply |
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| GR01 | Patent grant | ||
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Granted publication date: 20181002 Termination date: 20220213 |