CN208737333U - A kind of supply voltage self-checking device - Google Patents
A kind of supply voltage self-checking device Download PDFInfo
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- CN208737333U CN208737333U CN201821283432.8U CN201821283432U CN208737333U CN 208737333 U CN208737333 U CN 208737333U CN 201821283432 U CN201821283432 U CN 201821283432U CN 208737333 U CN208737333 U CN 208737333U
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Abstract
The utility model discloses a kind of supply voltage self-checking devices, including power collecting circuit, difference adjusts circuit and partial pressure compensation circuit, the power signal when signal receiving circuit is worked normally with power harvester J1 acquisition mesohigh equipment power supply, the difference adjusts the signal that circuit receives power collecting circuit output with transport and placing device AR2, transport and placing device AR1 is devised simultaneously, the difference channel of transport and placing device AR3 composition divides in compensation circuit input after signal differential processing, triode Q1 plays the effect that feedback regulation difference adjusts circuit output signal current potential, the last partial pressure compensation circuit uses triode Q4 and triode Q5 and resistance R13, resistance R15 is exported after constituting resistor voltage divider circuit partial pressure, it that is to say and provide compensation power for mesohigh equipment power supply, in real time The power signal when work of mesohigh equipment power supply is detected, provides compensation power for power supply, and the size of compensation power can be automatically adjusted.
Description
Technical field
The utility model relates to field of circuit technology, more particularly to a kind of supply voltage self-checking device.
Background technique
Mesohigh equipment power supply belongs to the scope of power power supply, therein one big at last in current power supply unit
The three-phase 690V/50Hz alternating current that diesel engine or alternating current provide can be converted to stable 400V DC voltage by class, one of which,
Stable dc power power supply is provided for mesohigh equipment, however in prolonged power supply process, it often will appear power supply and owe
The problem of pressure, causes power unstable, so that stable dc power power supply cannot be provided.
So the utility model provides the new scheme of one kind to solve the problems, such as this.
Utility model content
For above situation, for the defect for overcoming the prior art, the utility model is designed to provide a kind of power supply electricity
Press self-checking device, have be skillfully constructed, the characteristic of human oriented design, real-time detection mesohigh equipment power supply work when
Power signal, provide compensation power for power supply, and can automatically adjust compensation power size.
Its technical solution solved is a kind of supply voltage self-checking device, including power collecting circuit, difference are adjusted
Circuit and partial pressure compensation circuit, the power collecting circuit are normal with power harvester J1 acquisition mesohigh equipment power supply
Power signal when work, the difference adjust the signal that circuit receives power collecting circuit output with transport and placing device AR2, together
When devise transport and placing device AR1, transport and placing device AR3 composition difference channel to signal differential processing after input partial pressure compensation circuit in,
Wherein devise the abnormal letter in the switching circuit detection power collecting circuit output signal of triode Q2, triode Q3 composition
Number, and abnormal signal is released completely to greatly, triode Q1 plays feedback regulation difference and adjusts circuit output signal current potential
Effect, the last partial pressure compensation circuit constitute resistance with triode Q4 and triode Q5 and resistance R13, resistance R15
It is exported after bleeder circuit partial pressure, that is to say and provide compensation power for mesohigh equipment power supply；
It includes transport and placing device AR2, one end of the homophase input terminating resistor R3 of transport and placing device AR2, electricity that the difference, which adjusts circuit,
The base stage of another termination triode Q2 of R3 is hindered, the emitter of triode Q2 connects the base stage of triode Q3, the current collection of triode Q2
Pole connects one end of the collector of triode Q3 and the output end of transport and placing device AR2 and resistance R7, and the emitter of triode Q3 is grounded,
The non-inverting input terminal of another termination transport and placing device AR3 of resistance R7, transport and placing device AR1, the anti-phase input terminating resistor of transport and placing device AR1
One end of R4, resistance R11, the other end ground connection of resistance R4, one end of the anti-phase input terminating resistor R5 of transport and placing device AR2, resistance
The emitter of another termination triode Q1 of R5, one end of the collector connecting resistance R8 of triode Q1, another termination of resistance R8
One end of power supply+5V and resistance R9, the base stage of triode Q1 connect the output end of transport and placing device AR3 and output end, the electricity of transport and placing device AR1
Hinder the other end of R11 and one end of resistance R10, one end of the anti-phase input terminating resistor R6 of transport and placing device AR3 and resistance R10
The other end, resistance R6 the other end ground connection.
Due to the use of above technical scheme, the utility model has the following advantages that compared with prior art；
1. devising the difference channel of transport and placing device AR1, transport and placing device AR3 composition to input partial pressure compensation after signal differential processing
In circuit, to eliminate self-excitation, the effect of stabilization signal is played, wherein devising the switch electricity of triode Q2, triode Q3 composition
The abnormal signal in power collecting circuit output signal is detected on road, when containing abnormal signal in transport and placing device AR2 output signal, three
Pole pipe Q2, triode Q3 are simultaneously turned on, and abnormal signal is released completely to the detection accuracy for greatly, improving signal, is set simultaneously
It has counted triode Q1 and has played the effect that feedback regulation difference adjusts circuit output signal current potential, when difference adjusts circuit output signal
When for abnormal high level signal, triode Q1 conducting reduces the output signal current potential of transport and placing device AR2, namely is reduction of difference
Circuit output signal current potential is adjusted, signal is further stabilized.
2. being constituted with triode Q4 and triode Q5 and resistance R13, resistance R15 defeated after resistor voltage divider circuit divides
Out, this partial pressure compensation circuit is divided into three grades, and the filtering that level-one needs to compensate is larger, and triode Q5 is connected at this time, triode
Q4 is not turned on, and resistance R15 is in parallel with resistance R16, increases compensation performance number；Second level normal compensatory power, triode Q3, three poles
Pipe Q4 is not turned on, and it is mesohigh equipment that difference, which adjusts circuit output signal after resistance R12, resistance R13 and resistance R16 partial pressure,
Power supply provides compensation power；The filtering that three-level needs to compensate is smaller, and triode Q5 is not turned at this time, triode Q4 conducting,
Difference adjusts circuit output signal and releases after resistance R14 partial pressure to greatly all the way, remaining as secondary work principle, due to
It is limited using power signal compensation, it needs power supply+50V to improve reference potential for compensation power, realizes automatic adjustment and compensate function
The magnitude function of rate improves the practical value and promotional value of the circuit.
Detailed description of the invention
Fig. 1 is a kind of module map of supply voltage self-checking device of the utility model.
Fig. 2 is a kind of schematic diagram of supply voltage self-checking device of the utility model.
Specific embodiment
Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through attached
Fig. 2 can be clearly presented in the detailed description of embodiment.The structure content being previously mentioned in following embodiment is to say
Bright book attached drawing is reference.
Embodiment one, a kind of supply voltage self-checking device, including power collecting circuit, difference adjust circuit and partial pressure
Compensation circuit, the function when power collecting circuit is worked normally with power harvester J1 acquisition mesohigh equipment power supply
Rate signal, the difference adjusts circuit and receives the signal of power collecting circuit output with transport and placing device AR2, while devising amplifier
The difference channel of device AR1, transport and placing device AR3 composition divides in compensation circuit input after signal differential processing, wherein devising three
Abnormal signal in the switching circuit detection power collecting circuit output signal of pole pipe Q2, triode Q3 composition, and by abnormal letter
It number releases completely to greatly, triode Q1 plays the effect that feedback regulation difference adjusts circuit output signal current potential, last described
After partial pressure compensation circuit constitutes resistor voltage divider circuit partial pressure with triode Q4 and triode Q5 and resistance R13, resistance R15
Output, that is to say and provide compensation power for mesohigh equipment power supply；
Signal of the difference adjusting circuit with transport and placing device AR2 reception power collecting circuit output, amplified signal power,
The difference channel of transport and placing device AR1, transport and placing device AR3 composition is devised simultaneously to input partial pressure compensation circuit after signal differential processing
It is interior, to eliminate self-excitation, the effect of stabilization signal is played, wherein devising the switching circuit inspection of triode Q2, triode Q3 composition
Abnormal signal in power scale Acquisition Circuit output signal, when containing abnormal signal in transport and placing device AR2 output signal, triode
Q2, triode Q3 are simultaneously turned on, and abnormal signal are released to greatly completely, are believed when not abnormal in transport and placing device AR2 output signal
Number when, triode Q2, triode Q3 are both turned on, and using two triode Q2, triode Q3 triodes as switching circuit, are improved
The reliability of switching circuit, improves the detection accuracy of signal, while devising triode Q1 and playing feedback regulation difference tune
The effect for saving circuit output signal current potential, when it is abnormal high level signal that difference, which adjusts circuit output signal, triode Q1 is led
It is logical, the output signal current potential of transport and placing device AR2 is reduced, namely be reduction of difference and adjust circuit output signal current potential, it is further steady
Determine signal, one end of the homophase input terminating resistor R3 of transport and placing device AR2, the base stage of another termination triode Q2 of resistance R3,
The emitter of triode Q2 connects the base stage of triode Q3, the collector and transport and placing device of the collector connecting transistor Q3 of triode Q2
The output end of AR2 and one end of resistance R7, the emitter ground connection of triode Q3, another termination transport and placing device AR3 of resistance R7, fortune
Put the non-inverting input terminal of device AR1, one end of the anti-phase input terminating resistor R4 of transport and placing device AR1, resistance R11, resistance R4's is another
End ground connection, one end of the anti-phase input terminating resistor R5 of transport and placing device AR2, the emitter of another termination triode Q1 of resistance R5,
One end of the collector connecting resistance R8 of triode Q1, one end of another termination power+5V and resistance R9 of resistance R8, triode Q1
Base stage connect the one of the output end of transport and placing device AR3 and the output end of transport and placing device AR1, the other end of resistance R11 and resistance R10
End, one end of the anti-phase input terminating resistor R6 of transport and placing device AR3 and the other end of resistance R10, the other end ground connection of resistance R6.
Embodiment two, on the basis of example 1, the partial pressure compensation circuit with triode Q4 and triode Q5 with
And resistance R13, resistance R15 are constituted after resistor voltage divider circuit divides and are exported, this partial pressure compensation circuit is divided into three grades, level-one
The filtering for needing to compensate is larger, and triode Q5 is connected at this time, and triode Q4 is not turned on, and resistance R15 is in parallel with resistance R16, increases
Compensation performance number；Second level normal compensatory power, triode Q3, triode Q4 are not turned on, and difference adjusts circuit output signal
Compensation power is provided after resistance R12, resistance R13 and resistance R16 partial pressure for mesohigh equipment power supply；Three-level needs to mend
The filtering repaid is smaller, and triode Q5 is not turned at this time, and triode Q4 conducting, difference adjusts circuit output signal all the way through resistance
Release after R14 partial pressure to greatly, with remaining is secondary work principle as, due to limited using power signal compensation, need power supply+
50V is that compensation power improves reference potential, improves the practical value of the circuit, the output of a termination transport and placing device AR1 of resistance R12
The emitter at end and triode Q5, the base stage of another termination triode Q4 of resistance R12 and one end of resistance R13, triode Q4
Collector connecting resistance R9 the other end, one end of the emitter connecting resistance R14 of triode Q4, resistance R14 the other end ground connection,
The base stage of another termination triode Q5 of resistance R13 and one end of resistance R16, the collector connecting resistance R15's of triode Q5
One end of one end, the other end of another terminating resistor R16 of resistance R15 and resistance R17, one end of capacitor C2 and signal output
Port, one end of another terminating resistor R18 of the other end and capacitor C2 of resistance R17 and power supply+50V, the other end of resistance R18
Ground connection.
Embodiment three, on the basis of example 1, the power collecting circuit select the power of model YK-3D3 to adopt
Storage J1 acquires power signal when mesohigh equipment power supply works normally, and the power supply termination power of power harvester J1+
One end of 5V and resistance R1, capacitor C1, the other end of the output terminating resistor R1 of power harvester J1 and the other end of capacitor C1
And one end of resistance R2, the ground terminal ground connection of power harvester J1, the homophase input of another termination transport and placing device AR2 of resistance R2
End.
When the utility model is specifically used, a kind of supply voltage self-checking device, including power collecting circuit, difference tune
Road economize on electricity with partial pressure compensation circuit, the power collecting circuit is acquiring mesohigh equipment power supply just with power harvester J1
Often power signal when work, the difference adjust the signal that circuit receives power collecting circuit output with transport and placing device AR2,
Amplified signal power, while devising after the difference channel that transport and placing device AR1, transport and placing device AR3 are formed handles signal differential and inputting
It divides in compensation circuit, to eliminate self-excitation, plays the effect of stabilization signal, wherein devising triode Q2, triode Q3 composition
Switching circuit detection power collecting circuit output signal in abnormal signal, when in transport and placing device AR2 output signal containing abnormal
When signal, triode Q2, triode Q3 are simultaneously turned on, and abnormal signal are released completely to greatly, when transport and placing device AR2 output signal
In when there is no abnormal signal, triode Q2, triode Q3 are both turned on, using two triode Q2, triode Q3 triode conducts
Switching circuit improves the reliability of switching circuit, improves the detection accuracy of signal, while devising triode Q1 and playing instead
Feedback adjusts the effect that difference adjusts circuit output signal current potential, is abnormal high level signal when difference adjusts circuit output signal
When, triode Q1 conducting reduces the output signal current potential of transport and placing device AR2, namely is reduction of difference and adjusts circuit output signal
Current potential further stabilizes signal, the last partial pressure compensation circuit use triode Q4 and triode Q5 and resistance R13,
Resistance R15 is exported after constituting resistor voltage divider circuit partial pressure, be that is to say and is provided compensation power for mesohigh equipment power supply.
The above is to combine specific embodiment further detailed description of the utility model, and it cannot be said that originally
Utility model specific implementation is limited only to this；Belonging to the utility model and for those skilled in the technology concerned,
Under the premise of technical solutions of the utility model thinking, made expansion and the replacement of operating method, data should all be fallen in
Within scope of protection of the utility model.
Claims (3)
1. a kind of supply voltage self-checking device, including power collecting circuit, difference adjust circuit and partial pressure compensation circuit,
It is characterized in that, the function when power collecting circuit is worked normally with power harvester J1 acquisition mesohigh equipment power supply
Rate signal, the difference adjusts circuit and receives the signal of power collecting circuit output with transport and placing device AR2, while devising amplifier
The difference channel of device AR1, transport and placing device AR3 composition divides in compensation circuit input after signal differential processing, wherein devising three
Abnormal signal in the switching circuit detection power collecting circuit output signal of pole pipe Q2, triode Q3 composition, and by abnormal letter
It number releases completely to greatly, triode Q1 plays the effect that feedback regulation difference adjusts circuit output signal current potential, last described
After partial pressure compensation circuit constitutes resistor voltage divider circuit partial pressure with triode Q4 and triode Q5 and resistance R13, resistance R15
Output, that is to say and provide compensation power for mesohigh equipment power supply；
It includes transport and placing device AR2, one end of the homophase input terminating resistor R3 of transport and placing device AR2, resistance R3 that the difference, which adjusts circuit,
Another termination triode Q2 base stage, the emitter of triode Q2 connects the base stage of triode Q3, and the collector of triode Q2 connects
One end of the collector of triode Q3 and the output end of transport and placing device AR2 and resistance R7, the emitter ground connection of triode Q3, resistance
The non-inverting input terminal of another termination transport and placing device AR3 of R7, transport and placing device AR1, anti-phase input terminating resistor R4, the electricity of transport and placing device AR1
One end of R11 is hindered, the other end ground connection of resistance R4, one end of the anti-phase input terminating resistor R5 of transport and placing device AR2, resistance R5's is another
The emitter of one termination triode Q1, one end of the collector connecting resistance R8 of triode Q1, another termination power+5V of resistance R8
With one end of resistance R9, the base stage of triode Q1 connects the output end of transport and placing device AR3 and the output end of transport and placing device AR1, resistance R11
One end of the other end and resistance R10, one end of the anti-phase input terminating resistor R6 of transport and placing device AR3 and the other end of resistance R10,
The other end of resistance R6 is grounded.
2. a kind of supply voltage self-checking device as described in claim 1, which is characterized in that the partial pressure compensation circuit includes
The output end of a termination transport and placing device AR1 of resistance R12, resistance R12 and the emitter of triode Q5, another termination of resistance R12
The base stage of triode Q4 and one end of resistance R13, the other end of the collector connecting resistance R9 of triode Q4, the transmitting of triode Q4
One end of pole connecting resistance R14, the other end ground connection of resistance R14, the base stage and resistance of another termination triode Q5 of resistance R13
One end of R16, one end of the collector connecting resistance R15 of triode Q5, the other end of another terminating resistor R16 of resistance R15 and
One end of resistance R17, one end of capacitor C2 and signal output port, the other end of resistance R17 and another termination of capacitor C2
One end of resistance R18 and power supply+50V, the other end ground connection of resistance R18.
3. a kind of supply voltage self-checking device as described in claim 1, which is characterized in that the power collecting circuit includes
The one of the power supply termination power+5V of the power harvester J1 of model YK-3D3, power harvester J1 and resistance R1, capacitor C1
End, the other end of output terminating resistor R1 of power harvester J1 and one end of the other end of capacitor C1 and resistance R2, power
The ground terminal of collector J1 is grounded, the non-inverting input terminal of another termination transport and placing device AR2 of resistance R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283432.8U CN208737333U (en) | 2018-08-10 | 2018-08-10 | A kind of supply voltage self-checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283432.8U CN208737333U (en) | 2018-08-10 | 2018-08-10 | A kind of supply voltage self-checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208737333U true CN208737333U (en) | 2019-04-12 |
Family
ID=66028840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821283432.8U Expired - Fee Related CN208737333U (en) | 2018-08-10 | 2018-08-10 | A kind of supply voltage self-checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208737333U (en) |
-
2018
- 2018-08-10 CN CN201821283432.8U patent/CN208737333U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20200810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |