CN109802357A - A kind of rotation change exciting circuit with hiccup protections - Google Patents
A kind of rotation change exciting circuit with hiccup protections Download PDFInfo
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- CN109802357A CN109802357A CN201910051911.XA CN201910051911A CN109802357A CN 109802357 A CN109802357 A CN 109802357A CN 201910051911 A CN201910051911 A CN 201910051911A CN 109802357 A CN109802357 A CN 109802357A
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Abstract
The invention discloses a kind of, and the rotation with hiccup protections becomes exciting circuit; including sequentially connected operational amplifier circuit and push-pull power amplifier circuit; increase the diode of two differential concatenations at the power amplification transistor base of push-pull power amplifier circuit; diode of the power supply Jing Guo differential concatenation provides electric current; turning on and off for push-pull power amplifier circuit can be can control by the diode of differential concatenation in this way, to achieve the purpose that control rotation becomes positive and negative excitation output.The present invention becomes exciting circuit to rotation by the on-off of control push-pull power amplifier circuit and carries out short-circuit protection, protects power amplification triode, simplifies control strategy, has saved circuit cost；The present invention is designed by controlling short-circuit protection the hiccup of signal, guarantee occur to revolve become excitation over the ground or to power supply short circuit when, the triode of push-pull power amplifier circuit thoroughly turns off, and further protection rotation becomes exciting circuit.
Description
Technical field
The present invention relates to rotations to become exciting circuit, in particular to a kind of rotation with hiccup protections becomes exciting circuit.
Background technique
In AC servo control system, to realize the closed-loop control of motor high-performance, accurately and reliably rotor-position is obtained
It is even more important with revolving speed.Rotary transformer can with the rotor angle and tach signal of simulated machine, pass to electric machine controller into
Row analysis and processing.For automotive grade electric machine control system, since the factors such as strong vibration, high pollution influence, rotary transformer tool
The position for having other angles sensor irreplaceable.In electric car field, the rotation on master control borad, which becomes pumping signal, usually to be made
It is sent in the rotation change of automobile rear end with the signal wire without fixing terminal, at this time, it is easy to since operational issue causes to revolve
Become positive and negative excitation and short circuit occur, to cause burning for power amplifying pipe.Therefore, right in order to improve the reliability of circuit
It is very crucial that rotation, which becomes exciting circuit to carry out short-circuit protection,.
Closest technology is mainly as follows with this technology:
1, general rotation becomes excitation topological structure and is handled by amplifier original excitation signal, then use Class B as described in Figure 1
Power amplification circuit carries out the amplification of output electric current, and amplified sinusoidal excitation signal is finally inputted rotation change and is driven；It is existing
Have in technology common practice, if rotation becomes pumping signal over the ground or to power supply short circuit, the triode in power amplification circuit has can
It can be burned out.
2, as shown in Fig. 2, carrying out clamper by the base stage to power amplification triode, realize that rotation becomes the short circuit motivated and protects
Shield；This programme has certain limitation for the output current capacity of circuit, and the triode power consumption of short-circuit protection is larger when short-circuit, palpus
The biggish triode of power is selected, otherwise can not be played a protective role.
3, it as shown in figure 3, carrying out current sample on the power supply of power amplification circuit, is resetted and is opened by over-current signal triggering
The reset signal on powered-down road resets rotation and becomes decoding chip to realize that rotation becomes the short-circuit protection of excitation.Become decoding core by resetting to revolve
Piece can only detect the method that carries out short-circuit protection recommends positive triode overcurrent (such as excitation shorted to earth), triggering short circuit
Protection.But if excitation to power supply generation short circuit, recommends negative sense triode overcurrent, positive triode does not have overcurrent, then can not touch
Short-circuit protection is sent out, which may generate failure because electric current is excessive.And reset circuit needs to be reset chip, increases circuit
Cost.In addition, making short-circuit protection delay longer to turn off pumping signal by output reset pulse to decoding chip, short
It can not restore rotation after the failure vanishes of road automatically and become excitation, while circuit control strategy being made to become complicated.
Summary of the invention
Object of the present invention is to: in conjunction with the primary demand and circuit reliability demand of automobile, design a kind of with hiccup protections
Rotation becomes exciting circuit.
The technical scheme is that
A kind of rotation change exciting circuit with hiccup protections, including sequentially connected operational amplifier circuit and push-pull power amplifier circuit, push away
It draws the base stage that power amplification circuit includes the power amplification triode Q1 and Q2 that emitter is connected, Q1 and Q2 and passes through two respectively
Pole pipe D1, D2 connects operational amplifier circuit, which is characterized in that increases by two differential concatenations at the power amplification triode Q1 base stage
Diode D3, D4, increase by diode D5, D6 of two differential concatenations at power amplification triode Q2 base stage, and power supply passes through respectively
Diode D3, D4, D5, D6 to provide electric current to push-pull power amplifier circuit.
Preferably, increase triode Q3, two poles between the eutectic point and positive pole of the reverse phase concatenated diode D3, D4
Increase triode Q4 between the eutectic point and ground of pipe D5, D6, is controlled by controlling the switch state of triode Q3, Q4 by anti-
Be connected in series the electric current of diode D3, D4, D5, D6, to control the on-off of push-pull power amplifier circuit.
It preferably, further include sequentially connected signal processing circuit and comparison circuit, signal processing circuit is to Push-Pull power
The positive and negative output voltage of amplifying circuit sample and carries out signal processing respectively, and output signal that treated, which is input to, to be compared
It is compared in circuit, obtains short-circuit protection control signal, the base stage for feeding back to triode Q3, Q4 controls its on-off.
Preferably, connected between the normal phase input end and output end of the comparison circuit by concatenated capacitor C1, resistance R1
It connects, inverting input terminal is grounded by concatenated capacitor C2, resistance R2 connection, becomes excitation hiccup protections to rotation.
Preferably, it is connected between the emitter of power amplification the triode Q1 and Q2 by concatenated resistance R3, R4, Q1
For emitter with Q2 respectively as positive and negative output voltage sampled output, the eutectic point of resistance R3, R4 become pumping signal as rotation
Output end.
Preferably, the power supply passes through resistance R5, R6, capacitor the C3 ground connection being sequentially connected in series, and the output end of comparison circuit connects
The eutectic point of connecting resistance R5, R6.
Preferably, the eutectic point of emitter connection reverse phase concatenated diode D3, D4 of the triode Q3, collector are logical
Resistance R7 connection positive pole is crossed, base stage is controlled by triode Q5 connection；The emitter of triode Q4 connects reverse phase concatenated two
The eutectic point of pole pipe D5, D6, collector are grounded by resistance R8, and base stage passes through resistance R9 ground connection respectively, resistance R10 connection is compared
The output end of circuit.
Preferably, the triode Q5 base stage passes through the output end of resistance R11 connection comparison circuit, and emitter passes through resistance
R12 ground connection, collector pass sequentially through concatenated resistance R13, R14 connection positive pole, the eutectic point connection three of resistance R13, R14
The base stage of pole pipe Q3.
The invention has the advantages that
1. the present invention, which becomes exciting circuit to rotation by the on-off of control push-pull power amplifier circuit, carries out short-circuit protection, function is protected
Rate amplifying triode, simplifies control strategy, has saved circuit cost；
2. the present invention is designed by controlling short-circuit protection the hiccup of signal, guarantee that become excitation short over the ground or to power supply occurring to revolve
The triode of Lu Shi, push-pull power amplifier circuit thoroughly turn off, and further protection rotation becomes exciting circuit.Such as designed without hiccup, it is short
Road protection control signal will constantly be converted between low and high level, when rotation occur becoming excitation over the ground or to power supply short circuit, power amplification
Triode can not turn off, and still have the risk for causing to burn because electric current is excessive.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is that general rotation becomes excitation topological structure；
Fig. 2 is to carry out clamper to the base stage of power amplification triode to realize that the rotation of short-circuit protection becomes excitation topological structure；
Fig. 3 is to become excitation topological structure by resetting rotation change decoding chip to carry out the rotation of short-circuit protection；
Fig. 4 is that rotation of the present invention with hiccup protections becomes exciting circuit topological structure.
Specific embodiment
As shown in figure 4, rotation of the invention with hiccup protections becomes exciting circuit, including sequentially connected operational amplifier circuit and push away
Power amplification circuit is drawn, push-pull power amplifier circuit includes the power amplification triode Q1 and Q2, Q1 and Q2 that emitter is connected
Base stage pass through respectively diode D1, D2 connection operational amplifier circuit, which is characterized in that at the power amplification triode Q1 base stage increase
Add diode D3, D4 of two differential concatenations, increase at power amplification triode Q2 base stage two differential concatenations diode D5,
D6, power supply pass through diode D3, D4, D5, D6 to provide electric current to push-pull power amplifier circuit respectively.It in this way can be by reversed
Concatenated diode can control turning on and off for push-pull power amplifier circuit, so that it is defeated to reach the positive and negative excitation of control rotation change
Purpose out.
Increase triode Q3, diode D5, D6 between the eutectic point and positive pole of described reverse phase concatenated diode D3, D4
Eutectic point and ground between increase triode Q4, by control triode Q3, Q4 switch state connect to control by reverse phase
The electric current of diode D3, D4, D5, D6, to control the on-off of push-pull power amplifier circuit.
It further includes sequentially connected signal processing circuit and comparison circuit that rotation, which becomes exciting circuit, and signal processing circuit is to recommending
The positive and negative output voltage of power amplification circuit sample and carries out signal processing respectively, the power amplification triode Q1 and
It is connected between the emitter of Q2 by concatenated resistance R3, R4, the emitter of Q1 and Q2 are sampled respectively as positive and negative output voltage
The eutectic point of output end, resistance R3, R4 becomes pumping signal output end as rotation.Output signal after signal processing, which is input to, to be compared
It is compared in circuit, obtains short-circuit protection control signal, the base stage for feeding back to triode Q3, Q4 controls its on-off.
Pass through concatenated capacitor C1, resistance R1 connection, reverse phase between the normal phase input end and output end of the comparison circuit
Input terminal is grounded by concatenated capacitor C2, resistance R2 connection, to have the function that become rotation excitation hiccup protections.Swash when rotation becomes
When encouraging generation over the ground or to power supply short circuit, the time of capacitor charge and discharge can be adjusted by adjusting capacitance-resistance, to adjust short circuit
The time of the protection control high and low level of signal.
The power supply passes through resistance R5, R6, capacitor the C3 ground connection being sequentially connected in series, and the output end of comparison circuit connects resistance
The eutectic point of R5, R6.The eutectic point of emitter connection reverse phase concatenated diode D3, D4 of the triode Q3, collector are logical
Resistance R7 connection positive pole is crossed, base stage is controlled by triode Q5 connection；The emitter of triode Q4 connects reverse phase concatenated two
The eutectic point of pole pipe D5, D6, collector are grounded by resistance R8, and base stage passes through resistance R9 ground connection respectively, resistance R10 connection is compared
The output end of circuit.The triode Q5 base stage passes through the output end of resistance R11 connection comparison circuit, and emitter passes through resistance
R12 ground connection, collector pass sequentially through concatenated resistance R13, R14 connection positive pole, the eutectic point connection three of resistance R13, R14
The base stage of pole pipe Q3.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all to lead according to the present invention
The modification for wanting the Spirit Essence of technical solution to be done, such as: 1, changing short-circuit protection and control triode topological structure；2, change is compared
Circuit charge and discharge capacitance-resistance topological structure；3, comparison circuit logic is changed, such as becomes excitation over the ground or to power supply short circuit occurring to revolve
When, comparison circuit exports high level, and reverse side series connection capacitance-resistance is connected to the output, and in-phase end series connection capacitance-resistance ground connection should all contain
Lid is within protection scope of the present invention.
Claims (8)
1. a kind of rotation with hiccup protections becomes exciting circuit, including sequentially connected operational amplifier circuit and push-pull power amplifier circuit,
Push-pull power amplifier circuit includes that the base stage of the power amplification triode Q1 and Q2 that emitter is connected, Q1 and Q2 pass through respectively
Diode D1, D2 connect operational amplifier circuit, which is characterized in that increase by two differential concatenations at the power amplification triode Q1 base stage
Diode D3, D4, increase by diode D5, D6 of two differential concatenations at power amplification triode Q2 base stage, power supply passes through respectively
Diode D3, D4, D5, D6 is crossed to provide electric current to push-pull power amplifier circuit.
2. the rotation according to claim 1 with hiccup protections becomes exciting circuit, which is characterized in that the reverse phase concatenated two
Increase triode Q3 between the eutectic point and positive pole of pole pipe D3, D4, increases by three poles between the eutectic point and ground of diode D5, D6
Pipe Q4 controls the electric current by reverse phase series diode D3, D4, D5, D6 by controlling the switch state of triode Q3, Q4,
To control the on-off of push-pull power amplifier circuit.
3. the rotation according to claim 2 with hiccup protections becomes exciting circuit, which is characterized in that further include sequentially connected
Signal processing circuit and comparison circuit, signal processing circuit sample the positive and negative output voltage of push-pull power amplifier circuit
And signal processing is carried out respectively, output signal that treated, which is input in comparison circuit, to be compared, and short-circuit protection control is obtained
Signal, the base stage for feeding back to triode Q3, Q4 control its on-off.
4. the rotation according to claim 3 with hiccup protections becomes exciting circuit, which is characterized in that the comparison circuit is just
By concatenated capacitor C1, resistance R1 connection between phase input terminal and output end, inverting input terminal passes through concatenated capacitor C2, electricity
R2 connection ground connection is hindered, excitation hiccup protections are become to rotation.
5. the rotation according to claim 3 with hiccup protections becomes exciting circuit, which is characterized in that three pole of power amplification
It is connected between the emitter of pipe Q1 and Q2 by concatenated resistance R3, R4, the emitter of Q1 and Q2 are respectively as positive and negative output electricity
Sampled output is pressed, the eutectic point of resistance R3, R4 become pumping signal output end as rotation.
6. the rotation according to claim 4 with hiccup protections becomes exciting circuit, which is characterized in that the power supply is by successively
Concatenated resistance R5, R6, capacitor C3 ground connection, the eutectic point of output end connection resistance R5, R6 of comparison circuit.
7. the rotation according to claim 6 with hiccup protections becomes exciting circuit, which is characterized in that the hair of the triode Q3
Emitter-base bandgap grading connects the eutectic point of reverse phase concatenated diode D3, D4, and collector is by resistance R7 connection positive pole, and base stage is by three poles
Pipe Q5 connection control；The eutectic point of emitter connection reverse phase concatenated diode D5, D6 of triode Q4, collector pass through resistance
R8 ground connection, base stage pass through the output end of resistance R9 ground connection, resistance R10 connection comparison circuit respectively.
8. the rotation according to claim 7 with hiccup protections becomes exciting circuit, which is characterized in that the triode Q5 base stage
By the output end of resistance R11 connection comparison circuit, emitter is grounded by resistance R12, and collector passes sequentially through concatenated electricity
It hinders R13, R14 and connects positive pole, the base stage of the eutectic point connecting triode Q3 of resistance R13, R14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051911.XA CN109802357B (en) | 2019-01-21 | 2019-01-21 | Rotary transformer excitation circuit with hiccup protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051911.XA CN109802357B (en) | 2019-01-21 | 2019-01-21 | Rotary transformer excitation circuit with hiccup protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109802357A true CN109802357A (en) | 2019-05-24 |
| CN109802357B CN109802357B (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910051911.XA Active CN109802357B (en) | 2019-01-21 | 2019-01-21 | Rotary transformer excitation circuit with hiccup protection |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160011267A1 (en) * | 2014-07-08 | 2016-01-14 | Hyundai Motor Company | Method and system for determining failure within resolver |
| CN205791448U (en) * | 2016-06-16 | 2016-12-07 | 苏州汇川技术有限公司 | A kind of rotation becomes excitation hiccup protections circuit and rotation becomes exciting circuit |
| CN205791489U (en) * | 2016-06-13 | 2016-12-07 | 苏州汇川技术有限公司 | A kind of rotation becomes pumping signal protection circuit |
| CN205911742U (en) * | 2016-08-05 | 2017-01-25 | 上海金脉电子科技有限公司 | Electrical resolver excitation output current -limiting protection circuit |
| CN206225982U (en) * | 2016-09-12 | 2017-06-06 | 华域汽车系统股份有限公司 | A kind of rotation for becoming digitalizer for revolving becomes protection circuit |
| CN208386136U (en) * | 2018-05-18 | 2019-01-15 | 阳光电源股份有限公司 | Rotation becomes excitation system and pumping signal short-circuit protection circuit |
-
2019
- 2019-01-21 CN CN201910051911.XA patent/CN109802357B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160011267A1 (en) * | 2014-07-08 | 2016-01-14 | Hyundai Motor Company | Method and system for determining failure within resolver |
| CN205791489U (en) * | 2016-06-13 | 2016-12-07 | 苏州汇川技术有限公司 | A kind of rotation becomes pumping signal protection circuit |
| CN205791448U (en) * | 2016-06-16 | 2016-12-07 | 苏州汇川技术有限公司 | A kind of rotation becomes excitation hiccup protections circuit and rotation becomes exciting circuit |
| CN205911742U (en) * | 2016-08-05 | 2017-01-25 | 上海金脉电子科技有限公司 | Electrical resolver excitation output current -limiting protection circuit |
| CN206225982U (en) * | 2016-09-12 | 2017-06-06 | 华域汽车系统股份有限公司 | A kind of rotation for becoming digitalizer for revolving becomes protection circuit |
| CN208386136U (en) * | 2018-05-18 | 2019-01-15 | 阳光电源股份有限公司 | Rotation becomes excitation system and pumping signal short-circuit protection circuit |
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| CN109802357B (en) | 2020-03-20 |
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Denomination of invention: A Rotary Transformer Excitation Circuit with Hiccup Protection Effective date of registration: 20230724 Granted publication date: 20200320 Pledgee: Bank of Communications Ltd. Shanghai Minhang branch Pledgor: JEE AUTOMATION EQUIPMENT (SHANGHAI) Co.,Ltd. Registration number: Y2023980049476 |