CN107968638A - A kind of driving structure of two-channel compensation output - Google Patents
A kind of driving structure of two-channel compensation output Download PDFInfo
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- CN107968638A CN107968638A CN201711183948.5A CN201711183948A CN107968638A CN 107968638 A CN107968638 A CN 107968638A CN 201711183948 A CN201711183948 A CN 201711183948A CN 107968638 A CN107968638 A CN 107968638A
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- triode
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/011—Modifications of generator to compensate for variations in physical values, e.g. voltage, temperature
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/013—Modifications of generator to prevent operation by noise or interference
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
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Abstract
The present invention provides a kind of driving structure of two-channel compensation output; it aims to solve the problem that all kinds of driving circuit for electromagnetic valve of existing track train; lack short-circuit protection, effective discharge loop or current guiding circuit, there is the technical problems such as control is failed, stability difference and reliability are low.The inventive structure feature includes pulse-duration modulation signal generator：Connect power supply；Circuit is clamped down in input：Receive the pulse signal of pulse-duration modulation signal generator output；Isolated location：Receive the pulse signal of pulse-duration modulation signal generator output；Output driving circuit：Receive the output voltage of isolated location；Voltage stabilizing discharge loop：Including solenoid valve, opening and closing signal is obtained by drive circuit；Further include redundancy compensation circuit；The present invention is used to drive all kinds of solenoid valves of track train.
Description
Technical field
The present invention relates to track train electric system, and in particular to a kind of driving structure of two-channel compensation output.
Background technology
All kinds of driving circuit for electromagnetic valve of existing track train, input stage control signal are pwm pulse signals, its pulse electricity
Pressure value is in 5V or so, and using between the voltage region of 100V or so in driving stage, if producing interference noise or electricity in driving stage
Subcomponent fails in short-term, and noise or short circuit current flow very likely cover input stage control signal, causes control to be failed, further makes
Into thrashing, so as to trigger possible serious accident and bear economic loss；Traditional filter circuit there are gain reduction,
It is not effective solution to the very low control signal of reference voltage；Driving stage lacks effective discharge loop, influences system
Job stability；Output stage lacks isolating device, discharge loop and electric current guiding, and the circuit work response time is longer.Therefore,
Design safety, stabilization, reliable and short the response time drive circuit or antiskid valve power control circuit are necessary.
The content of the invention
For the above-mentioned prior art, present invention aims at provide a kind of driving structure of two-channel compensation output, its purport
All kinds of driving circuit for electromagnetic valve of existing track train are being solved, are lacking short-circuit protection, there are discharge time length, control signal arteries and veins
Frequency limited is rushed, the technical problems such as control is failed, stability difference and reliability are low.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
A kind of driving structure of two-channel compensation output, including power supply, further comprise pulse-duration modulation signal generator：Even
Connect power supply；Circuit is clamped down in input：Receive the pulse signal of pulse-duration modulation signal generator output；Isolated location：Including transformer
T1, the first capacitance C1 in parallel with transformer T1, receive the pulse signal of pulse-duration modulation signal generator output；Output driving electricity
Road：Receive the output voltage of isolated location；Voltage stabilizing discharge loop：Including solenoid valve, opened by output driving circuit
Close signal；Isolated location：Also receive the Clamping voltages that circuit output is clamped down in input；Further include redundancy compensation circuit：Receive isolation
The output voltage of unit, detects the output voltage of output driving circuit, is also connected with solenoid valve.
In such scheme, circuit, including the first triode are clamped down in the input：Grid connects power supply, source electrode and drain electrode
It is connected；Second triode：Grid connects the source electrode of the first triode and drain electrode also connects the source electrode of the first triode；Three or three pole
Pipe：The source electrode of drain electrode the second triode of connection, source electrode ground connection；First phase inverter：Input terminal connects the grid of the second triode；The
Two phase inverters：Input terminal connects the output terminal of the first phase inverter；4th triode：Grid connects the output terminal of the second phase inverter,
Source electrode is grounded；5th triode：Grid connects the output terminal of the second phase inverter, and source electrode connects the drain electrode of the 4th triode, it is leaked
Pole is connected to pulse-duration modulation signal generator.6th triode：Grid connects the source electrode of the 5th triode, its source electrode ground connection and leakage
Pole is connected to isolated location.During normal work, electric leakage will not be produced；Pulse signal provides synchronous boost in order to control, significantly carries
High circuit noise highest receiving value；Substantially increase reliability, stability and circuit noise resisting ability；Reduce control failure hair
Raw rate.
In such scheme, the isolated location, including transformer, the first capacitance with transformers connected in parallel.
In such scheme, the output driving circuit, including the 7th triode：Grid connects isolated location, and source electrode connects
Ground；Pull-up power supply：Connect the drain electrode of the 7th triode；Darlington transistor：Base stage connects the drain electrode of the 7th triode；One or two pole
Pipe：The emitter of cathode connection Darlington transistor and the collector of anode connection Darlington transistor；Second diode：Cathode connection first
The cathode of diode, anode ground connection.
In such scheme, the voltage stabilizing discharge loop, further includes the second capacitance：Isolation output driving circuit and voltage stabilizing are put
Electrical circuit；3rd diode：Cathode connects the second capacitance；First Zener diode：Plus earth, anode connect the 3rd diode
Anode；3rd capacitance：One end connects the anode of the 3rd diode；The 3rd capacitance other end is also associated with the 4th diode and
Two Zener diodes；The anode of 4th diode connects the cathode of the 3rd diode, the anode connection of the second Zener diode the
The anode of three diodes；Solenoid valve the 3rd capacitance of parallel connection.Current limliting, water conservancy diversion and discharge loop are provided, when improving circuit response
Between and stability；Provide circuit insulation blocking.
In such scheme, the redundancy compensation circuit, including the 4th capacitance：The output terminal of shunt transformer；Power is mended
Repay triode：Base stage connects the 4th capacitance, emitter ground connection；Voltage detector：Three pole of bias voltage source connection power back-off
The collector of pipe；The test side of voltage detector is connected to voltage stabilizing discharge loop；8th triode：Grid connects power back-off three
The collector of pole pipe, source electrode ground connection, drain electrode are connected to solenoid valve.Provide the compensation of control signal output driving, it is ensured that solenoid valve
Open and/or close.
In such scheme, it is preferable that the pull-up power supply, selects the direct current of voltage 100V, connected by current-limiting resistance
Connect the drain electrode of the 7th triode.
In such scheme, it is preferable that the power supply, selects the DC source of voltage 5V.
In such scheme, it is preferable that the triode, selects N-channel and/or the ambipolar insulated-gate field-effect of P-channel
Transistor.
In such scheme, it is preferable that the phase inverter, including the ambipolar isolated-gate field effect transistor (IGFET) of N-channel and P ditches
The ambipolar isolated-gate field effect transistor (IGFET) in road, the drain electrode of the ambipolar isolated-gate field effect transistor (IGFET) of P-channel are connected with supply voltage
VCC。
In such scheme, it is preferable that circuit is clamped down in the input, by the pulse of pulse-duration modulation signal generator (100)
Signal criterion voltage clamp is to 7V or so, i.e. reference voltage synchronous boost to 7V or so.Improve anti-interference.
Compared with prior art, beneficial effect of the present invention：Improve that circuit bears failure or interference noise accommodates value,
Circuit malfunction or rate of breakdown significantly reduce, and add significantly and substantially the stability of power drives, security reliability
And antijamming capability；Fully ensure that control wave reaches solenoid valve in time；Fault detection is provided；It is significantly and real
Quality reduces circuit response time, expands control signal operating frequency range.
Brief description of the drawings
Fig. 1 is the circuit element catenation principle figure of the specific embodiment of the present invention；
Fig. 2 is the circuit diagram of the present invention；
In figure：Electricity is clamped down in VDD_IC- power supplys, VDD- pull-up power supplies, 100- pulse-duration modulation signal generators, 200- inputs
Road, 300- isolated locations, 400- output driving circuits, 500- voltage stabilizing discharge loops, 600- loads, 700- redundancy compensation circuits,
800- voltage detectors, Qx, Dx, U3A (x=1,2,3 ...)-transistor, A- control voltage nodes, Ux- phase inverters, T1-
Transformer, Cx- capacitances, Rx- resistance, S1- solenoid valves, the test side of DET.- voltage detectors, GND- ground terminals.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
The present invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 be the present invention specific embodiment circuit element catenation principle figure, pulse-duration modulation signal generator 100：Connection
Power vd D_IC；Circuit 200 is clamped down in input：Receive the pulse signal that pulse-duration modulation signal generator 100 exports；Isolated location
300：Receive the pulse signal that pulse-duration modulation signal generator 100 exports；Output driving circuit 400：Receive isolated location 300
Output voltage；Voltage stabilizing discharge loop 500：Including solenoid valve S1, opening and closing signal is obtained by output driving circuit 400；Every
From unit 300：Also receive the Clamping voltages that the output of circuit 200 is clamped down in input；Further include redundancy compensation circuit 700：Receive isolation
The output voltage of unit 300, detects the output voltage of output driving circuit 400, is also connected with solenoid valve S1.
Embodiment 1
The output driving circuit 400, including the 7th triode Q7：Grid connects isolated location 300, source electrode ground connection；
Pull-up power supply VDD：Connect the drain electrode of the 7th triode Q7；Darlington transistor Q8：Base stage connects the drain electrode of the 7th triode Q7；First
Diode D1：The emitter of cathode connection Darlington transistor D8 and the collector of anode connection Darlington transistor Q8；Second diode D2：
Cathode connects the cathode of the first diode D1, anode ground connection.
Embodiment 2
In input stage, breaking discharge process, the second triode Q2 and the 3rd triode Q3 serve as detection circuit
In resistance, maintain the 6th triode Q6 turn on half microseconds so that effectively bleed-off circuit electrostatic.Be conducive to improve circuit
Stability and reliability.
Embodiment 3
For driving stage and output stage, when output driving circuit 400 receives the pulse signal of high level, the 7th triode
Conducting, the base stage of Darlington transistor Q8 are in low level state, and Darlington transistor Q8 will end；Conversely, in output driving circuit 400
When receiving low level pulse signal, Darlington transistor Q8 will be turned on, and the second capacitance C2 is charged；When Darlington transistor Q8 again
During secondary cut-off, the second capacitance C2 electric discharges, solenoid valve S1 is charged, and produces electromagnetic induction, and switch is attracted.
Embodiment 4
In input stage, voltage node A is controlled, the first triode Q1 base currents can be biased, control input clamps down on electricity
The conducting and cut-off on road 200, so as to be debugged to being most suitable for reference voltage value.
Embodiment 5
In output stage, Zener diode primarily serves guide functions, increases certain circuit response time, and in circuit
Closing is to guide electrostatic in capacitance to be discharged；Secondly, when occurring short-circuit voltage, electric current in circuit, the first Zener diode
D3 will be punctured, and discharge improper short-circuit voltage, electric current, prevent from further producing destruction to 600 circuits of load.
Embodiment 6
During redundancy compensation, when there is element short and/or other failures in output driving circuit 400, overcurrent and/
Or over-pressed signal causes the first Zener diode D3 reverse breakdowns, causes control signal to reach solenoid valve S1；Meanwhile voltage
Detector 800 detects overcurrent-overvoltage signal, starts bias voltage source VCC_IC, power back-off triode U3A and the eight or three
Pole pipe Q9 provides control signal amplification, to solenoid valve S1 input control signals.
Embodiment 7
The 8th triode Q9, selection are connected and the N-channel field-effect tube of same encapsulation with Zener diode, can be with
Prevent short circuit overcurrent overvoltage from causing to damage to it.
Embodiment 8
On the basis of embodiment 4 and 6, by control voltage node A to input clamp down on 200 making alive of circuit and/or
By voltage detector 800 to 500 making alive of voltage stabilizing discharge loop, failure or short can be whether there is with somewhere in detection circuit
Road.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Belong to those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should
It is included within the scope of the present invention.
Claims (5)
1. a kind of driving structure of two-channel compensation output, including power vd D_IC, it is characterised in that further comprise
Pulse-duration modulation signal generator (100)：Connect power vd D_IC；
Circuit (200) is clamped down in input：Receive the pulse signal of pulse-duration modulation signal generator (100) output；
Isolated location (300)：Including transformer T1, the first capacitance C1 in parallel with transformer T1, receives pulse-width signal hair
The pulse signal of raw device (100) output；
Output driving circuit (400)：Receive the output voltage of isolated location (300)；
Voltage stabilizing discharge loop (500)：Including solenoid valve S1, opening and closing signal is obtained by output driving circuit (400)；
Isolated location (300)：Also receive the Clamping voltages that circuit (200) output is clamped down in input；
Further include redundancy compensation circuit (700)：Receive the output voltage of isolated location (300), detection output driving circuit (400)
Output voltage, be also connected with solenoid valve S1.
A kind of 2. driving structure of two-channel compensation output according to claim 1, it is characterised in that the input pincers
Circuit (200) processed, including
First triode Q1：Grid connects power vd D_IC, and source electrode is connected with drain electrode；
Second triode Q2：Grid connects the source electrode of the first triode Q1 and drain electrode also connects the source electrode of the first triode Q1；
3rd triode Q3：The source electrode of the second triode Q2 of drain electrode connection, source electrode ground connection；
First phase inverter U1：Input terminal connects the grid of the second triode Q2；
Second phase inverter U2：Input terminal connects the output terminal of the first phase inverter U1；
4th triode Q4：Grid connects the output terminal of the second phase inverter U2, source electrode ground connection；
5th triode Q5：Grid connects the output terminal of the second phase inverter U2, and source electrode connects the drain electrode of the 4th triode Q4, it is leaked
Pole is connected to pulse-duration modulation signal generator (100).
6th triode Q6：Grid connects the source electrode of the 5th triode Q5, its source electrode is grounded and drain electrode is connected to isolated location
(300)。
3. the driving structure of a kind of two-channel compensation output according to claim 1, it is characterised in that the output is driven
Dynamic circuit (400), including
7th triode Q7：Grid connection isolated location (300), source electrode ground connection；
Pull-up power supply VDD：Connect the drain electrode of the 7th triode Q7；
Darlington transistor Q8：Base stage connects the drain electrode of the 7th triode Q7；
First diode D1：The emitter of cathode connection Darlington transistor Q8 and the collector of anode connection Darlington transistor Q8；
Second diode D2：Cathode connects the cathode of the first diode D1, anode ground connection.
A kind of 4. driving structure of two-channel compensation output according to claim 3, it is characterised in that the pull-up electricity
Source VDD, selects the direct current of voltage 100V, passes through the drain electrode of the 7th triode Q7 of current-limiting resistance R4 connections.
5. the driving structure of a kind of two-channel compensation output according to claim 1, it is characterised in that the redundancy is mended
Circuit (700) is repaid, including
4th capacitance C4：The output terminal of shunt transformer T1；
Power back-off triode U3A：Base stage connects the 4th capacitance C4, emitter ground connection；
Voltage detector (800)：The collector of bias voltage source VCC_IC connection power back-off triodes U3A；
The test side DET. of voltage detector (800) is connected to voltage stabilizing discharge loop (500)；
8th triode Q9：The collector of grid connection power back-off triode U3A, source electrode ground connection, drain electrode are connected to solenoid valve
S1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183948.5A CN107968638A (en) | 2017-11-23 | 2017-11-23 | A kind of driving structure of two-channel compensation output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183948.5A CN107968638A (en) | 2017-11-23 | 2017-11-23 | A kind of driving structure of two-channel compensation output |
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| Publication Number | Publication Date |
|---|---|
| CN107968638A true CN107968638A (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183948.5A Pending CN107968638A (en) | 2017-11-23 | 2017-11-23 | A kind of driving structure of two-channel compensation output |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166026A (en) * | 2019-04-24 | 2019-08-23 | 张少波 | A kind of impulse circuit and the electromagnetic pulse punch using the impulse circuit |
| CN113625153A (en) * | 2021-08-10 | 2021-11-09 | 上海桑锐电子科技股份有限公司 | Batch testing device for water-gas meter chopping boards |
-
2017
- 2017-11-23 CN CN201711183948.5A patent/CN107968638A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166026A (en) * | 2019-04-24 | 2019-08-23 | 张少波 | A kind of impulse circuit and the electromagnetic pulse punch using the impulse circuit |
| CN110166026B (en) * | 2019-04-24 | 2024-03-29 | 张少波 | Pulse circuit and electromagnetic pulse puncher applying same |
| CN113625153A (en) * | 2021-08-10 | 2021-11-09 | 上海桑锐电子科技股份有限公司 | Batch testing device for water-gas meter chopping boards |
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Application publication date: 20180427 |