CN108418445A - A kind of novel double pressure quick responses braking rectifiers - Google Patents
A kind of novel double pressure quick responses braking rectifiers Download PDFInfo
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- CN108418445A CN108418445A CN201710070489.3A CN201710070489A CN108418445A CN 108418445 A CN108418445 A CN 108418445A CN 201710070489 A CN201710070489 A CN 201710070489A CN 108418445 A CN108418445 A CN 108418445A
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- 230000004044 response Effects 0.000 title claims abstract description 24
- 239000004065 semiconductor Substances 0.000 claims abstract description 51
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 21
- 239000010703 silicon Substances 0.000 claims abstract description 21
- 230000009977 dual effect Effects 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
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- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
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- 230000036632 reaction speed Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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Abstract
The invention discloses a kind of novel double pressure quick responses to brake rectifier, including half-wave rectifying circuit, metal-oxide-semiconductor trigger circuit, thyristor gating circuit, switch contact circuit, output contact circuit and protection circuit；Half-wave rectifying circuit is used for the input to AC power and carries out halfwave rectifier, and the startup that metal-oxide-semiconductor trigger circuit is used to control rectifier circuit output realizes the effect of brake fast braking or release with shutdown；Thyristor gating circuit promotes when rectifier is initially powered, and rectifier forms dual output so that response action accelerates braking or release, the stall locking time of rotation axis is shortened, to increase the service life of electromagnetic brake and rotation axis；Switch contact circuit is connect with external control circuit, is controlled the output of the rectifier by external control circuit；The electrical signal contacts of all keys, silicon-controlled is provided with varistor, the elimination external interference factor of maximum possible at metal-oxide-semiconductor.
Description
Technical field
The invention belongs to electromagnetic braking field of rectifiers, and in particular to a kind of novel double pressure quick responses braking rectifiers.
Background technology
Electromagnetic brake needs the moment for being powered and powering off in rectifier to realize in the very strict occasion of requirement
Quick acting, the phenomenon that stall locking occur to prevent rotation stop moving axis, occur, while needing to achieve the effect that fast braking or release.
When the voltage of electromagnetic brake initial power-on is in its range of nominal tension, voltage is higher at this time, then it is braked
Or release movement reaction speed is faster, the usually used rectifier of electromagnetic brake has 2 kinds at present, the first is that rectifier only has
Four connecting terminals, univoltage output, while can only realize the function of braking at a slow speed or discharge；Second is had more on rectifier
Two connecting terminals, as six connecting terminals, univoltage output, pass through the two additional terminals and external contactor
Normally closed two contacts are connected, and when needing to brake or discharge, external contactor energization promotes normally-closed contact signal to disconnect, to reach
The rectifier power source of disconnection exports to realize the effect of brake or release.
The first disadvantage：Usually when rectifier is powered, the DC voltage of output exports the rectifier for univoltage, because
It, which exports univoltage, cannot make brake quick response brake or discharge, and rotation axis moment can be caused to have stall locking phenomenon hair
It is raw, while the rectifier can not achieve brake fast braking or the effect of release, there is serious hysteresis motion phenomenon, the rectification
Device is only applicable to require braking or the release slow-footed occasion of loudness.
Second of disadvantage：Usually when rectifier is powered, the DC voltage of output exports the rectifier for univoltage, because
Output univoltage cannot make brake quick response brake or discharge, and rotation axis moment can be caused to have stall locking phenomenon,
Although fast braking or the release of electromagnetic brake may be implemented in the rectifier, but need to increase a contactor, to utilize it
A normally-closed contact in external contactor realizes fast braking or release, increases complexity to application circuit in this way, together
When due to contactor mechanical part itself action retardance, cause brake or discharge reaction speed also have certain lag.
Invention content
The technical problem to be solved by the present invention is to：A kind of novel double pressure quick responses braking rectifiers are provided, are solved
The problem of it is slow to brake rectifier output-response speed in the prior art, and be easy to cause rotation axis moment stall locking.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of novel double pressure quick responses brake rectifiers, including half-wave rectifying circuit, metal-oxide-semiconductor trigger circuit, silicon-controlled
Trigger circuit, switch contact circuit, output contact circuit and protection circuit；
Half-wave rectifying circuit is used to carry out halfwave rectifier to the input of AC power, including first to third diode；
Thyristor gating circuit when the rectifier is powered for forming dual output；
Metal-oxide-semiconductor trigger circuit controls the startup and shutdown of rectifier circuit output by controlling the break-make of metal-oxide-semiconductor；
Switch contact circuit is connect with external control circuit, is controlled to the output of the rectifier by external control circuit
System；
Output contact circuit is connect with external loading, and DC power supply is provided for external loading；
Circuit is protected to be used to provide protection, including the first to the 8th varistor to the electronic component of the rectifier.
One input terminal of AC power is connect with the anode of the first diode, another input terminal difference of AC power
It being connect with the cathode of the anode of the second diode, third diode, the cathode of the first, second diode is rectification output end, the
The anode of three diodes and the source electrode of metal-oxide-semiconductor connect.
Metal-oxide-semiconductor trigger circuit includes metal-oxide-semiconductor, zener diode, electrolytic capacitor, first to 3rd resistor, wherein metal-oxide-semiconductor
Drain electrode and output contact cathode connect, be sequentially connected first between the output end of half-wave rectifying circuit and the grid of metal-oxide-semiconductor
The series circuit of resistance, second resistance connects zener diode and the electricity in parallel of 3rd resistor between the source electrode and grid of metal-oxide-semiconductor
Road, the anode of zener diode and the source electrode of metal-oxide-semiconductor connect, and the cathode of zener diode and the grid of metal-oxide-semiconductor connect, electrolysis electricity
The anode of appearance is connect with the midpoint of first resistor and second resistance, and the cathode of electrolytic capacitor and the source electrode of metal-oxide-semiconductor connect.
The thyristor gating circuit include it is silicon-controlled, second and the diode of third transistor, the 5th and the 6th, the second and
Third capacitance, the 4th to the 9th resistance；Wherein, one end of AC power respectively with silicon-controlled cathode, the sun of the 5th diode
The anode connection of pole, the 6th diode；Silicon-controlled anode is connect with the anode of third diode, grid and third transistor
Emitter connects, and the 9th resistance is connected between silicon-controlled grid and cathode；The collector of third transistor and the second triode
Emitter connection, between the collector of third transistor and the cathode of the 6th diode connect third capacitance, third transistor
Base stage and the cathode of the 6th diode between connect the 8th resistance；The emitter of second triode and one end of AC power it
Between connect the parallel circuit of the second capacitance and the 6th resistance, the 5th is connected between the collector and rectification output end of the second triode
Resistance, the base stage of the second triode are connect with the cathode of the 5th diode, and the 4th resistance is connected between rectification output end, the
Two capacitances and third capacitance are electrolytic capacitor, the anode of the second capacitance and third capacitance it is positive with the current collection of third transistor
Pole is connected with the emitter of the second triode；It is connected in parallel between 7th resistance and the 6th diode.
Switch contact circuit includes two switch contact switches 1 and switch 2；Wherein, switch contact switch 1 is exported with rectification
End connection, switch contact switch 2 are connect with the anode of output contact.
Output contact circuit includes output contact anode and output contact cathode.
The first varistor is connected between two input terminals of AC power；The cathode and rectification output end of third diode
Between connect the second varistor, third varistor is connected between the anode and rectification output end of third diode, rectification is defeated
The 4th varistor is connected between outlet and the cathode of output contact；Is connected between two switch contacts of switch contact circuit
Five varistors；The 6th varistor is connected between the positive electrode and negative electrode of output contact；It is connected between the source electrode and drain electrode of metal-oxide-semiconductor
7th varistor；The 8th varistor is connected between silicon-controlled anode and cathode.
Compared with prior art, the invention has the advantages that：
1, the shortcoming that rectifier braking response is slow described in background technology is overcome, the present invention is logical using metal-oxide-semiconductor
With the advantages that disconnected high current, fast response time come realize output quick response effect, usually exchange side power-off wink
Between brake need brake or discharge, rectifier of the present invention can immediately turn off output at this time, to realize brake
Fast braking or the effect of release.
2, brake low-response when being powered described in background technology caused by the output of rectifier univoltage is overcome
Shortcoming, the present invention are promoted using thyristor gating circuit when rectifier is initially powered, and rectifier forms all-wave output voltage,
Also it is dual output, is delayed after a period of time, OUT outputs reverts to half-wave output namely univoltage output, for braking
Device keeps voltage, the present invention that response action of the brake when being initially powered can be made to accelerate braking or release, shorten rotation axis
The stall locking time, to increase the service life of electromagnetic brake and rotation axis.
3, the effect that rectifier exports through and off can be controlled by external contactor, also can direct short-circuit this function not
It uses, provides multiple choices to the user.
4, the electrical signal contact of all keys, metal-oxide-semiconductor, it is silicon-controlled be provided with varistor, outside the elimination of maximum possible
Disturbing factor.
Description of the drawings
Fig. 1 is the circuit diagram of rectifier of the present invention.
J1 is electric signal junction block in figure, and M1, M2, M3, M4, M5, M6, M7, M8 are varistor, and C1, C2, C3 are electrolysis
Capacitance, D1, D2, D3, D5, D6 are diode, and D4 is zener diode, and R1, R2, R3, R4, R5, R6, R7, R8, R9 are resistance,
Q1 is metal-oxide-semiconductor, Q2, Q3 are triode, and Q4 is silicon-controlled.
Specific implementation mode
The structure and the course of work of the present invention are described further below in conjunction with the accompanying drawings.
A kind of novel double pressure quick responses braking rectifiers, including half-wave rectifying circuit, thyristor gating circuit, metal-oxide-semiconductor
Trigger circuit, switch contact circuit, output contact circuit and protection circuit；
Half-wave rectifying circuit is used to carry out halfwave rectifier to the input of AC power, including first to third diode；
Thyristor gating circuit when the rectifier is powered for forming dual output；
Metal-oxide-semiconductor trigger circuit controls the startup and shutdown of rectifier circuit output by controlling the break-make of metal-oxide-semiconductor；
Switch contact circuit is connect with external control circuit, is controlled to the output of the rectifier by external control circuit
System；
Output contact circuit is connect with external loading, and DC power supply is provided for external loading；
Circuit is protected to be used to provide protection, including the first to the 8th varistor to the electronic component of the rectifier.
Specific embodiment,
As shown in Figure 1,
Half-wave rectifying circuit is mainly made of diode D1, diode D2 and diode D3, the cathode of diode D1, two poles
The cathode of pipe D2 mutually crosses with switch 1 to be electrically connected, the anode of diode D1 and AC power input terminal AC-L connection,
Anode, another input terminal of the cathode and AC power of the diode D3 AC-N of diode D2 is electrically connected.
Metal-oxide-semiconductor trigger circuit is mainly by resistance R1, resistance R2, resistance R3, capacitance C1, zener diode D4 and metal-oxide-semiconductor Q1
Composition, one end of resistance R1 are electrically connected with the cathode of diode D1, and the other end of resistance R1, one end of resistance R2 are with capacitance C1's
Anode mutually crosses electrical connection, the other end of resistance R2, one end of resistance R3, zener diode D4 cathode with metal-oxide-semiconductor Q1's
Grid G mutually crosses electrical connection, and the drain D of metal-oxide-semiconductor Q1 is electrically connected with output contact OUT-, the source S of metal-oxide-semiconductor Q1, voltage stabilizing two
The anode of pole pipe D4, the cathode of capacitance C1, resistance R3 the other end be electrically connected with the anode of diode D3, the model N ditches of metal-oxide-semiconductor
Road metal-oxide-semiconductor field effect transistor.
Thyristor gating circuit mainly by resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, capacitance C2,
Capacitance C3, diode D5, diode D6, triode Q2, triode Q3 and silicon-controlled Q4 compositions, one end of resistance R4, resistance R5
One end be electrically connected with the cathode of diode D1, the other end of resistance R5 is electrically connected with the collector of triode Q2, resistance R4's
The other end, diode D5 cathode mutually cross and be electrically connected with the base stage of triode Q2, the anode of capacitance C2, capacitance C3 are just
Pole, one end of resistance R6, triode Q3 collector mutually cross and be electrically connected with the emitter of triode Q2, capacitance C3's is negative
Pole, one end of resistance R7, resistance R8 one end mutually cross and be electrically connected with the cathode of diode D6, the other end of resistance R8 and three
The base stage of pole pipe Q3 is electrically connected, and the grid of the emitter of triode Q3, one end of resistance R9 and silicon-controlled Q4, which mutually crosses, to be electrically connected
Connect, the other end of resistance R6, the other end of resistance R7, the other end of resistance R9, the cathode of capacitance C2, diode D5 anode,
The cathode of positive, the silicon-controlled Q4 of diode D6 and an input terminal AC-L of AC power mutually cross and are electrically connected, silicon-controlled Q4
Anode be electrically connected with the anode of diode D3.
Switch contact electric routing switch 1 and the two contacts of switch 2 composition, switch contact switch 1 and switch 2 respectively with outside
Normally closed two contacts of portion's contactor are electrically connected, and switch contact switch 1 and switch 2 also can directly two be touched it with electric wire or Shorted post
Point short circuit, switch contact switch 2 are electrically connected with output contact OUT+.
Output contact circuit is mainly made of OUT+, OUT- and load RL, output contact OUT+ and 2 electricity of switch contact switch
Even, output contact OUT- is a zero potential signal, and electricity is connected to external loading RL respectively by output contact OUT+ and OUT-, and outside is negative
It is electromagnetic brake or electromagnetic clutch to carry RL.
Protect circuit mainly by varistor M1, varistor M2, varistor M3, varistor M4, varistor M5,
Varistor M6, varistor M7 and varistor M8 compositions, the both ends of varistor M1 are respectively electrically connected to AC power
Two input terminals AC-L and AC-N, the both ends of varistor M2 are respectively electrically connected to cathode and the AC power input of diode D1
AC-N is held, the both ends of varistor M3 are respectively electrically connected to the anode of the cathode and diode D3 of diode D1, varistor M4
Both ends be respectively electrically connected to the cathode and output contact OUT- of diode D1, the both ends of varistor M5 are respectively electrically connected to out
Contact switch 1 and switch 2 are closed, the both ends of varistor M6 are respectively electrically connected to output contact OUT+ and output contact OUT-, press
The both ends of quick resistance M7 are respectively electrically connected to the source S and drain D of metal-oxide-semiconductor Q1, and the both ends of varistor M8 are respectively electrically connected to
The cathode of the anode and thyristor Q4 of thyristor Q4, varistor are rectifier circuit safeguard protection element.
Working principle of the invention is as follows：When alternating voltage AC-L and AC-N are powered, can be obtained by halfwave rectifier principle,
AC power AC-L will make+V1 signaling points obtain DC voltage by diode D1, at this point, DC voltage+V1 then can be by can
Control silicon trigger circuit make it is silicon-controlled be in work conducting state, the alternating current of AC-N passes through diode D2 and generates direct current at this time
Pressure makes+V1 generate dual output, and rectifier exports for full-wave rectification at this time, meanwhile, DC voltage+V1 can then pass through resistance
R1, resistance R2, resistance R3 are divided, when the voltage at the both ends resistance R3 reaches VGS (th) threshold voltage of metal-oxide-semiconductor Q1, MOS
Pipe Q1 will start conducting, when the voltage at metal-oxide-semiconductor Q1 grid Gs end increases to certain value, metal-oxide-semiconductor Q1 drain Ds and metal-oxide-semiconductor Q1
(resistance is close to 0 between drain D and source S) will be connected in source S, arrive this, and entire circuit just forms complete circuit, to
The response action that the output for reaching twin voltage makes brake when being initially powered accelerates braking or release, shortens the stall of rotation axis
The locking time reaches the service life for increasing electromagnetic brake and rotation axis.Further, rectifier is exported in double pressure full-wave rectifications
Afterwards, after the defined time, thyristor gating circuit will make silicon-controlled Q3 be in cut-off state, and rectifier works at this time
Half-wave output mode namely univoltage output, so that brake keeps voltage to use.
Circuit operation principle is expanded on further, after AC AC powers power off, brake should be powered off and be produced immediately at this time
The effect of raw braking or release.Rectifier circuit operation principle after the power-off of AC AC powers is as follows：After AC power power-off, half
The voltage of wave rectification output is not that straight line falls to 0V, and+V1 also has remaining voltage at this time, when+V1 voltages are through resistance R1, electricity
After resistance R2, resistance R3 are divided, the voltage at the both ends resistance R3 is promoted to be less than VG S (th) threshold voltage of metal-oxide-semiconductor Q1, metal-oxide-semiconductor
Q1 will immediately turn off output, at this time metal-oxide-semiconductor Q1 drain Ds and metal-oxide-semiconductor Q1 source Ss will end disconnection (drain D and source S it
Between infinite), to make brake dead electricity immediately, brake is finally made to achieve the effect that braking or release immediately.
Circuit operation principle is expanded on further, rectifier can also work in the pattern of external contactor control, circuit
Operation principle is as follows：By normally closed two contacts of external contactor be electrically connected to rectifier switch 1 and switch 2, at this time by
Third party system realizes the fast braking of rectifier or the effect of release, and in such a mode, AC AC powers do not power off usually
Source is directly closed and is disconnected by the switch of rectifier 1 and switch 2 by external contactor, make OUT+ reach electrification or without
The effect of electricity, to realize that brake generates the effect of braking and release.
Above example is not to be made any form of restriction to the structure and composition of the present invention.It is every according to the present invention
Technical spirit still falls within technical solution of the present invention to any simple modification, equivalent change and modification made by above example
In the range of.All technical solutions formed using equivalent substitution or equivalent transformation, are fallen within the scope of protection required by the present invention.
Claims (7)
1. a kind of novel double pressure quick responses brake rectifier, it is characterised in that：Including half-wave rectifying circuit, metal-oxide-semiconductor triggering electricity
Road, thyristor gating circuit, switch contact circuit, output contact circuit and protection circuit；
Half-wave rectifying circuit is used to carry out halfwave rectifier to the input of AC power, including first to third diode；
Thyristor gating circuit when the rectifier is powered for forming dual output；
Metal-oxide-semiconductor trigger circuit controls the startup and shutdown of rectifier circuit output by controlling the break-make of metal-oxide-semiconductor；
Switch contact circuit is connect with external control circuit, is controlled the output of the rectifier by external control circuit；
Output contact circuit is connect with external loading, and DC power supply is provided for external loading；
Circuit is protected to be used to provide protection, including the first to the 8th varistor to the electronic component of the rectifier.
2. novel double pressure response braking rectifiers according to claim 1, it is characterised in that：One input of AC power
End is connect with the anode of the first diode, another input terminal of AC power respectively with the anode of the second diode, the three or two
The cathode of pole pipe connects, and the cathode of the first, second diode is rectification output end, the anode of third diode and the source of metal-oxide-semiconductor
Pole connects.
3. novel double pressure quick responses according to claim 1 brake rectifier, it is characterised in that：Metal-oxide-semiconductor trigger circuit
Including metal-oxide-semiconductor, zener diode, electrolytic capacitor, first to 3rd resistor, wherein the drain electrode of metal-oxide-semiconductor and the cathode of output contact
Connection, is sequentially connected first resistor, the series electrical of second resistance between the output end of half-wave rectifying circuit and the grid of metal-oxide-semiconductor
Road connects the parallel circuit of zener diode and 3rd resistor between the source electrode and grid of metal-oxide-semiconductor,
The anode of zener diode and the source electrode of metal-oxide-semiconductor connect, and the cathode of zener diode and the grid of metal-oxide-semiconductor connect, electrolysis
The anode of capacitance is connect with the midpoint of first resistor and second resistance, and the cathode of electrolytic capacitor and the source electrode of metal-oxide-semiconductor connect.
4. novel double pressure quick responses according to claim 1 brake rectifier, it is characterised in that：The control machines
Circuit include it is silicon-controlled, second and the diode of third transistor, the 5th and the 6th, second and third capacitance, the 4th to the 9th electricity
Resistance；Wherein, one end of AC power connects with the anode of silicon-controlled cathode, the anode of the 5th diode, the 6th diode respectively
It connects；Silicon-controlled anode is connect with the anode of third diode, the emitter connection of grid and third transistor, silicon-controlled grid
The 9th resistance is connected between pole and cathode；The collector of third transistor is connect with the emitter of the second triode, the three or three pole
Third capacitance, the moon of the base stage of third transistor and the 6th diode are connected between the collector of pipe and the cathode of the 6th diode
The 8th resistance is connected between pole；The second capacitance and the 6th electricity are connected between the emitter of second triode and one end of AC power
The parallel circuit of resistance connects the 5th resistance, the base stage of the second triode between the collector and rectification output end of the second triode
It is connect with the cathode of the 5th diode, and connects the 4th resistance between rectification output end, the second capacitance and third capacitance are electricity
Solve capacitance, the transmitting of the anode of the second capacitance and the anode of third capacitance with the collector of third transistor and the second triode
Pole connects；It is connected in parallel between 7th resistance and the 6th diode.
5. novel quick response according to claim 1 brakes rectifier, it is characterised in that：Switch contact circuit includes two
A switch contact switch 1 and switch 2；Wherein, switch contact switch 1 is connect with rectification output end, switch contact switch 2 and output
The anode connection of contact.
6. novel double pressure response braking rectifiers according to claim 1, it is characterised in that：Output contact circuit includes defeated
Go out contact anode and output contact cathode.
7. novel double pressure quick responses according to any one of claim 1 to 6 brake rectifier, it is characterised in that：It hands over
The first varistor is connected between two input terminals in galvanic electricity source；Is connected between the cathode and rectification output end of third diode
Two varistors connect third varistor, rectification output end and output between the anode and rectification output end of third diode
The 4th varistor is connected between the cathode of contact；The 5th pressure-sensitive electricity is connected between two switch contacts of switch contact circuit
Resistance；The 6th varistor is connected between the positive electrode and negative electrode of output contact；Connection the 7th is pressure-sensitive between the source electrode and drain electrode of metal-oxide-semiconductor
Resistance；The 8th varistor is connected between silicon-controlled anode and cathode.
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| CN201710070489.3A CN108418445B (en) | 2017-02-09 | 2017-02-09 | Double-voltage quick response braking rectifier |
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| CN201710070489.3A CN108418445B (en) | 2017-02-09 | 2017-02-09 | Double-voltage quick response braking rectifier |
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|---|---|---|---|---|
| CN2610559Y (en) * | 2002-10-09 | 2004-04-07 | 黄群 | Self-rectifying brake device of AC motor |
| CN201001097Y (en) * | 2006-11-14 | 2008-01-02 | 广德县康利电器有限公司 | Controller for electromagnetic brake or clutch |
| CN102226957A (en) * | 2011-03-22 | 2011-10-26 | 天津大学 | Circuit for realizing power-on voltage-multiplying accelerated suction and low power consumption maintenance of electromagnetic brake |
| US20130170266A1 (en) * | 2011-12-30 | 2013-07-04 | National Tsing Hua University | Two-stage isolated dc/ac conversion circuit structure |
| CN202634332U (en) * | 2012-04-24 | 2012-12-26 | 冷水江钢铁有限责任公司 | Electromagnetic braking rectification controller of motor |
| CN203159114U (en) * | 2013-03-15 | 2013-08-28 | 杭州浙阳电气有限公司 | Driving power circuit for electromagnetic brake |
| CN204794737U (en) * | 2015-03-30 | 2015-11-18 | 王友于 | Two pressure prompt braking action rectifiers |
| CN204810167U (en) * | 2015-07-27 | 2015-11-25 | 深圳市金华升电源技术有限公司 | Positive negative voltage power adapter |
| CN205001614U (en) * | 2015-08-16 | 2016-01-27 | 嘉兴市大宇机电有限公司 | Energy -saving control circuit arrangement suitable for solenoid valve |
| CN206461532U (en) * | 2017-02-09 | 2017-09-01 | 苏州采奕动力科技有限公司 | A kind of new double pressure quick response braking rectifiers |
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|---|---|
| CN108418445B (en) | 2024-03-22 |
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Inventor after: Tang Shufeng Inventor after: Ai Zhiyong Inventor before: Tang Shufeng Inventor before: Ai Zhiyong |