Utility model content
The utility model embodiment provides a kind of power circuit, increases the application range of power circuit.
In a first aspect, the utility model embodiment provides a kind of power circuit, which is characterized in that including control module, open
Close module, follower, proportional integral differential PID regulator and regulated power supply, wherein
First control terminal of the control module is connect with the input terminal of the follower;
The first input end of the proportional integral differential PID regulator is connect with the output end of the follower, the ratio
Second input terminal of example integral differential PID regulator is connect with the output end of the regulated power supply, the proportional integral differential PID
The output end of adjuster is connect with the input terminal of the regulated power supply;
Second control terminal of the control module is connect with the first end of the switch module, the third of the control module
Control terminal is connect with the second end of the switch module, and the third end of the output end of the regulated power supply and the switch module connects
It connects, the 4th end ground connection of the switch module.
In a kind of possible embodiment, the switch module includes the first triode, the second triode, the three or three pole
Pipe and first resistor, wherein
Second control terminal of the control module is connect with the base stage of first triode, the collection of first triode
Electrode is connect with the base stage of one end of the first resistor and the third transistor respectively, the other end of the first resistor with
The output end of the regulated power supply connects, the emitter ground connection of first triode;
The third control terminal of the control module is connect with the base stage of second triode, the collection of second triode
Electrode is connect with the collector of the third transistor, the emitter ground connection of second triode;
The emitter of the third transistor is connect with the output end of the regulated power supply.
In alternatively possible embodiment, the switch module further includes second resistance, 3rd resistor, the 4th resistance
With the 5th resistance, wherein
One end and the third that the collector of first triode passes through the second resistance and the first resistor
The base stage of triode connects;
The collector of the third transistor connect respectively with one end of the 4th resistance by the 3rd resistor and
One end of 5th resistance connects, and the other end of the 5th resistance is the output end of the power circuit;
The collector of second triode is connect with the other end of the 4th resistance.
In alternatively possible embodiment, the follower includes the first amplifier, wherein
The non-inverting input terminal of first amplifier is connect with the first control terminal of the control module;
The inverting input terminal of first amplifier is connect with the output end of first amplifier;
The output end of first amplifier is connect with the non-inverting input terminal of the proportional integral differential PID regulator.
In alternatively possible embodiment, the proportional integral differential PID regulator includes the second amplifier, the 6th
Resistance, the 7th resistance and first capacitor, wherein
The non-inverting input terminal of second amplifier is connect with the output end of the follower;
The inverting input terminal of second amplifier respectively with described 6th resistance one end, the 7th resistance one end and
The output end of the regulated power supply connects;
The other end of 6th resistance is connect with one end of the first capacitor, the other end of the first capacitor and institute
State the output end connection of the second amplifier;
The other end of 7th resistance is connect with the output end of second amplifier.
In alternatively possible embodiment, the power circuit further includes the 8th resistance and the 9th resistance, wherein
One end of 8th resistance is connect with the output end of the regulated power supply, the other end difference of the 8th resistance
It is connect with one end of the inverting input terminal of second amplifier and the 9th resistance;
The other end of 9th resistance is grounded.
In alternatively possible embodiment, the regulated power supply includes stabilized power source and voltage-stablizer, wherein
The input terminal of the voltage-stablizer is connect with the output end of the stabilized power source;
The control terminal of the voltage-stablizer is connect with the output end of the proportional integral differential PID regulator;
The output end of the voltage-stablizer is the output end of the regulated power supply.
In alternatively possible embodiment, the regulated power supply further includes the tenth resistance and eleventh resistor, wherein
One end of tenth resistance is connect with the output end of the proportional integral differential PID regulator, the tenth electricity
The other end of resistance is connect with the control terminal of the voltage-stablizer;
One end of the eleventh resistor is connect with the control terminal of the voltage-stablizer, the other end of the eleventh resistor with
The output end of the voltage-stablizer connects.
In alternatively possible embodiment, the switch module further includes twelfth resistor, thirteenth resistor, the tenth
Four resistance and the 15th resistance, wherein
One end of the twelfth resistor is connect with the second control terminal of the control module, the twelfth resistor it is another
One end is connect with the base stage of first triode;
One end of the thirteenth resistor is connect with the base stage of first triode, the other end of the thirteenth resistor
It is connect with the emitter of first triode;
One end of 14th resistance is connect with the third control terminal of the control module, the 14th resistance it is another
One end is connect with the base stage of second triode;
One end of 15th resistance is connect with the base stage of second triode, the other end of the 15th resistance
It is connect with the emitter of second triode.
In alternatively possible embodiment, the control module is single-chip microcontroller.
Power circuit provided by the embodiment of the utility model includes that control module, switch module, follower, proportional integration are micro-
Divide PID regulator and regulated power supply, wherein the first control terminal of control module and the input terminal of follower connect;Proportional integration
The first input end of differential PID regulator and the output end of follower connect, the second input of proportional integral differential PID regulator
End is connect with the output end of regulated power supply, and the output end of proportional integral differential PID regulator and the input terminal of regulated power supply connect;
Second control terminal of control module and the first end of switch module connect, and the of the third control terminal of control module and switch module
The connection of two ends, the output end of regulated power supply and the third end of switch module connect, the 4th end ground connection of switch module.This is practical new
In the power circuit that type embodiment provides, control module can change the voltage of the first analog electrical signal inputted to follower
Value, so that power circuit output voltage values are adjustable and stable DC, to increase the application range of power circuit.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
In the following, technical solution shown in the application is described in detail by specific embodiment.Under it should be noted that
The several specific embodiments in face can be combined with each other, and for the same or similar content, no longer carry out weight in various embodiments
Multiple explanation.
Fig. 1 is the structural schematic diagram of power circuit provided by the embodiment of the utility model, referring to Figure 1.Power circuit knot
Structure includes: including control module 11, switch module 12, follower 13, proportional integral differential PID regulator 14 and regulated power supply
15, wherein
First control terminal of control module 11 is connect with the input terminal of follower 13;
The first input end of proportional integral differential PID regulator 14 is connect with the output end of follower 13, and proportional integration is micro-
Second input terminal of point PID regulator 14 is connect with the output end of regulated power supply 15, proportional integral differential PID regulator 14 it is defeated
Outlet is connect with the input terminal of regulated power supply 15;
Second control terminal of control module 11 is connect with the first end of switch module 12, the third control terminal of control module 11
It is connect with the second end of switch module 12, the output end of regulated power supply 15 is connect with the third end of switch module 12, switch module
12 the 4th end ground connection.
In a kind of possible embodiment, control module 11 is single-chip microcontroller.
Optionally, whether control module 11 exports direct current for controlling power circuit.
Optionally, control module 11 can export the first analog electrical signal.Optionally, the voltage value of the first analog electrical signal
It is adjustable.
Optionally, control module 11 is by the first analog electrical signal with fixed voltage value, after output to follower 13, with
It can be increased with device 13 with output current value, the second analog electrical signal that voltage value remains unchanged.
Optionally, the fixed voltage value can be 1,2 volt etc..
Optionally, proportional integral differential PID regulator 14 can export control signal.
Optionally, when control module 11 changes the voltage value of the first analog electrical signal, regulated power supply 15 can export electricity
Pressure is worth adjustable and stable DC.
Optionally, proportional integral differential PID regulator 14 can produce and export control signal, wherein control signal is
It is generated according to the direct current of the second analog electrical signal of output and regulated power supply 15 of follower 13 output.
Optionally, control signal is used to control the work of regulated power supply 15, so that 15 output voltage values of regulated power supply are adjustable
And stable DC.
Optionally, control module 11 can also generate high level " 1 " and low level " 0 ", and by the high level of generation " 1 " and
Low level " 0 " input switch module 12, with the conducting of control switch module 12, off-state.
Optionally, switch module 12 has the 5th end, and the 5th end is the output (not shown in figure 1) of power circuit.
Optionally, when control switch module 12 is connected, regulated power supply 15 is exported the output as power circuit, works as control
When switch module 12 processed disconnects, the output of regulated power supply 15 is broken not as the output of power circuit in control switch module 12
When opening, power circuit is without output.
In the following, the first analog electrical signal for being 2 volts to follower input voltage value with control module, and pressure stabilizing can be made
For the direct current that electric power output voltage value is 10 volts, the course of work of power circuit provided by the utility model is carried out detailed
Explanation.
Voltage value is 2 volts by the first analog electrical signal that control module is 2 volts to follower input voltage value, follower
First analog electrical signal is converted into the second analog electrical signal, and the second analog electrical signal is inputted proportional integral differential PID control
Device, (this is straight for the direct current that proportional integral differential PID controller is exported according to the second analog electrical signal and regulated power supply of input
The voltage value of galvanic electricity may not be 10 volts), to export control signal, and control signal is exported to regulated power supply, so that pressure stabilizing
The direct current that electric power output voltage value is 10 volts, if at this point, high level " 1 " and low level " 0 " that control module generates make out
Module conducting is closed, then the direct current that the direct current that the voltage value of regulated power supply output is 10 volts will be exported as power circuit;If
At this point, high level " 1 " and low level " 0 " that control module generates disconnect switch module, then regulated power supply output voltage values
To be exported not as power circuit for 10 volts of direct currents, i.e., at this time power circuit without direct current electricity output.
In above process, if the voltage value for the first analog electrical signal that control module is inputted to follower changes, such as
The voltage value of first analog electrical signal is 2.5 volts, when switch module conducting, the direct current of regulated power supply output (such as this is straight
The voltage of galvanic electricity is 12 volts) direct current that will be exported as power circuit, when switch module disconnects, regulated power supply output it is straight
The direct current that galvanic electricity (such as the voltage of the direct current be 12 volts) will be exported not as power circuit, i.e., at this time power circuit without straight
Galvanic electricity output.
Power circuit provided by the embodiment of the utility model includes that control module, switch module, follower, proportional integration are micro-
Divide PID regulator and regulated power supply, wherein the first control terminal of control module and the input terminal of follower connect;Proportional integration
The first input end of differential PID regulator and the output end of follower connect, the second input of proportional integral differential PID regulator
End is connect with the output end of regulated power supply, and the output end of proportional integral differential PID regulator and the input terminal of regulated power supply connect;
Second control terminal of control module and the first end of switch module connect, and the of the third control terminal of control module and switch module
The connection of two ends, the output end of regulated power supply and the third end of switch module connect, the 4th end ground connection of switch module.This is practical new
In the power circuit that type embodiment provides, control module can change the voltage of the first analog electrical signal inputted to follower
Value, so that power circuit output voltage values are adjustable and stable DC, to increase the application range of power circuit.
In addition, increasing since follower can export electric current, voltage in power circuit provided by the embodiment of the utility model
It is worth the second constant analog signal, so that the carrying load ability of power circuit enhances.
Based on any of the above embodiments, in the following, being carried out specifically to switch module provided by the utility model
It is bright, specifically, referring to Fig. 2.
Fig. 2 is switch module schematic diagram provided by the embodiment of the utility model, refers to Fig. 2.Switch module includes first
Triode, the second triode, third transistor, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance,
12 resistance, thirteenth resistor, the 14th resistance and the 15th resistance.
In a kind of possible embodiment, the switch module 21 include the first triode 211, the second triode 212,
Third transistor 213 and first resistor 214, wherein
Second control terminal of control module is connect with the base stage of the first triode 211, the collector point of the first triode 211
It is not connect with the base stage of one end of first resistor 214 and third transistor 213, the other end and regulated power supply of first resistor 214
Output end connection, the first triode 211 emitter ground connection;
The third control terminal of control module is connect with the base stage of the second triode 212, the collector of the second triode 212 with
The collector of third transistor 213 connects, the emitter ground connection of the second triode 212;
The emitter of third transistor 213 and the output end of regulated power supply connect.
In a kind of possible connection type, the switch module further includes second resistance 215,3rd resistor the 216, the 4th
Resistance 217 and the 5th resistance 218, wherein
The collector of first triode 211 passes through one end and the three or three pole of second resistance 215 and first resistor 214
The base stage of pipe 213 connects;
The collector of third transistor 213 is connect with one end of the 4th resistance 217 and the 5th respectively by 3rd resistor 216
One end of resistance 218 connects, and the other end of the 5th resistance 218 is the output end of power circuit;
The collector of second triode 212 is connect with the other end of the 4th resistance 217.
In a kind of possible embodiment, the switch module further include twelfth resistor 219, thirteenth resistor 220,
14th resistance 221 and the 15th resistance 222, wherein
Second control terminal of one end of twelfth resistor 219 and control module connects, the other end of twelfth resistor 219 with
The base stage of first triode 211 connects;
One end of thirteenth resistor 220 is connect with the base stage of the first triode 211, the other end of thirteenth resistor 220 with
The emitter of first triode 211 connects;
The third control terminal of one end of 14th resistance 221 and control module connects, the other end of the 14th resistance 221 with
The base stage of second triode 212 connects;
One end of 15th resistance 222 is connect with the base stage of the second triode 212, the other end of the 15th resistance 222 with
The emitter of second triode 212 connects.
It should be noted that the emitter grounding point of the other end of thirteenth resistor 220 and the first triode 211, the tenth
The emitter grounding point of the other end of five resistance 222 and second triode 212.
Optionally, the first triode, the second triode, third transistor can be NPN type triode or positive-negative-positive three
Pole pipe.
Optionally, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, twelfth resistor, the 13rd
Resistance, the 14th resistance and the 15th resistance can be fixed resistance or slide rheostat.
Optionally, fixed resistance is the resistance with a certain fixed resistance value.
Optionally, fixed resistance value can be 10,20,30 ohm etc..
Optionally, slide rheostat is the adjustable resistance of resistance value.
Optionally, control module can export high level " 1 " or low level " 0 " to the first triode in the second control terminal
211, wherein when the first triode 211 receives high level " 1 ", the first triode 211 conducting, the first triode 211 is received
When low level " 0 ", the cut-off of the first triode 211.
Optionally, control module can export high level " 1 " or low level " 0 " to the second triode in third control terminal
212, wherein when the second triode 212 receives high level " 1 ", the second triode 212 conducting, the second triode 212 is received
When low level " 0 ", the cut-off of the second triode 212.
Specifically, control module exports high level " 1 " to the first triode 211 and exports low level " 0 " to the second three-level
When pipe 212, the conducting of the first triode 211, the conducting of the second triode 212, third triode 213 end, at this point, power circuit is defeated
Outlet can and stable DC adjustable with output voltage values;Control module export low level " 0 " to the first triode 211 and
When exporting high level " 1 " to the second triode 212, the cut-off of the first triode 211, the cut-off of the second triode 212, third triode
213 conductings, at this point, power circuit output end is without direct current electricity output;Control module export low level " 0 " to the first triode 211,
And when output low level " 0 " to the second triode 212, the cut-off of the first triode 211, the cut-off of the second triode 212, third three-level
Pipe 213 ends, at this point, power circuit output end is without direct current electricity output (power circuit is high-impedance state at this time).
It should be noted that control module exports low level " 0 " to the first triode 211 and output high level " 1 " is to the
When two triodes 212, so that the cut-off of the first triode 211, the cut-off of the second triode 212, the conducting of third triode 213.If electric
Source circuit output end external load circuit, and in load circuit exist electric discharge (such as capacitor electric discharge) in the case where, load circuit
In discharge current grounding point can be flowed to by the 5th resistance, the 4th resistance, the second triode, reach protection load circuit
Purpose.
Based on any of the above embodiments, in the following, regulated power supply is described in detail, figure is specifically referred to
3。
Fig. 3 is regulated power supply schematic diagram provided by the embodiment of the utility model, refers to Fig. 3.Regulated power supply 31 includes perseverance
Determine power supply 311, voltage-stablizer 312, the tenth resistance 313 and eleventh resistor 314.
In a kind of possible embodiment, regulated power supply 31 includes stabilized power source 311 and voltage-stablizer 312, wherein
The input terminal of voltage-stablizer 312 is connect with the output end of stabilized power source 311;
The control terminal of voltage-stablizer 312 is connect with the output end of proportional integral differential PID regulator;
The output end of voltage-stablizer 312 is the output end of regulated power supply 31.
In a kind of possible embodiment, regulated power supply 31 further includes the tenth resistance 313 and eleventh resistor 314,
In,
One end of tenth resistance 313 is connect with the output end of proportional integral differential PID regulator, the tenth resistance 313 it is another
One end is connect with the control terminal of voltage-stablizer 312;
One end of eleventh resistor 314 is connect with the control terminal of voltage-stablizer 312, the other end of eleventh resistor 314 and steady
The output end of depressor 312 connects.
Optionally, the direct current constant to 312 input voltage value of voltage-stablizer of stabilized power source 311.
Optionally, control signal and stabilized power source that voltage-stablizer 312 is inputted according to proportional integral differential PID regulator
The direct current of the voltage value constant of 311 inputs, generates voltage value stable DC.
Optionally, the tenth resistance 313 and eleventh resistor 314 can be fixed resistance or slide rheostat.
Based on any of the above embodiments, in the following, comparative example integral differential PID regulator is made further specifically
It is bright, specifically, referring to Fig. 4 embodiment.
Fig. 4 is proportional integral derivative controller schematic diagram provided by the embodiment of the utility model, refers to Fig. 4.Ratio product
Dividing differential PID regulator 41 includes the second amplifier 411, the 6th resistance 412, the 7th resistance 413 and first capacitor 414, wherein
The non-inverting input terminal of second amplifier 411 is connect with the output end of follower 42;
The inverting input terminal of second amplifier 411 respectively with 412 one end of the 6th resistance, one end of the 7th resistance 413 and steady
The output end of voltage source connects;
The other end of 6th resistance 412 is connect with one end of first capacitor 414, the other end of first capacitor 414 and second
The output end of amplifier 411 connects;
The other end of 7th resistance 413 is connect with the output end of the second amplifier 411.
In a kind of possible embodiment, follower 42 includes the first amplifier 42, wherein
The non-inverting input terminal of first amplifier 42 and the first control terminal of control module connect;
The inverting input terminal of first amplifier 42 is connect with the output end of the first amplifier 42;
The output end of first amplifier 42 is connect with the non-inverting input terminal of proportional integral differential PID regulator 41.
Optionally, the 6th resistance 412, the 7th resistance 413 can be fixed resistance or slide rheostat etc..
Optionally, first capacitor 414 can be ceramic disc capacitor or electrolytic capacitor etc..
Based on any of the above embodiments, power circuit provided by the utility model further includes the 8th resistance and the 9th
Resistance, specifically, referring to Fig. 5.
Fig. 5 is power circuit connection schematic diagram provided by the embodiment of the utility model, refers to Fig. 5.Power circuit includes
Control module 51, switch module 52, follower 53, proportional integral differential PID regulator 54,56 and of the 8th resistance of regulated power supply 55
9th resistance 57, wherein
One end of 8th resistance 56 is connect with the output end of regulated power supply 55, and the other end of the 8th resistance 56 is respectively with second
The inverting input terminal of amplifier is connected with one end of the 9th resistance 57;
The other end of 9th resistance 57 is grounded.
It should be noted that proportional integral differential PID regulator 54, the 8th resistance 56 of regulated power supply 55 and the 9th resistance 57
Constitute feedback loop.In the feedback loop, the direct current that regulated power supply 55 exports feeds back to proportional integral differential PID regulator
54, so that when control module changes the voltage value of the first analog signal, the control of the output of proportional integral differential PID regulator 54
Signal processed can control regulated power supply output voltage values stable DC.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model embodiment, rather than
It is limited;Although the utility model embodiment is described in detail referring to foregoing embodiments, this field it is common
Technical staff is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to wherein
Some or all of technical characteristic is equivalently replaced;And these are modified or replaceed, and do not make the essence of corresponding technical solution
It is detached from the range of the utility model embodiment scheme.