CN205954277U - Electric sewing machine controller - Google Patents

Abstract

The utility model discloses an electric sewing machine controller, include: power supply circuit, this power supply circuit have input and output, and the input is coupled in outside commercial power, and master control circuit is coupled in power supply circuit to receive output of the power supply circuit's DC power supply, it has a plurality of signal input/output terminal, H bridge circuit, signal input/output terminal and the power supply circuit of this H bridge circuit is coupled in master control circuit still is coupled in outside motor to receive the signal driver motor operation of master control circuit output, and input feedback signal to master control circuit, interface circuit is coupled the signal input/output terminal in master control circuit to to master control circuit incoming signal. The utility model discloses an electric sewing machine controller, through power supply circuit just can be effectual the outside commercial power of conversion supplied power, setting through master control circuit and H bridge circuit can realize intelligent control motor, the setting through interface circuit just can realize extensions.

Description

A kind of electric sewer controller

Technical field

This utility model is related to a kind of electric sewer, more particularly to a kind of electric sewer controller.

Background technology

Application in weaving and clothes field for the sewing machine is very extensive, when sewing clothes, occupies very heavy The status wanted, by the use of sewing machine, can greatly promote the sewing efficiency of clothes, lift work task efficiency, simultaneously Also save the substantial amounts of time for the darning work of family.

Existing sewing machine mainly divides foot-propelled and electronic two kinds, and foot-propelled passes through one foot-propelled pedal of setting below, then One runner is set in the side of foot-propelled pedal, foot-propelled pedal drives runner by linkage, then on runner and sewing machine Rotating wheel connected by belt, be achieved in people ride drive sewing machine effect, but foot-propelled sewing machine one carrys out volume Can be very big, after two have come in use time length, the foot of people will be very tired, so compared to electric sewer, foot-propelled will difficult be used Many, and existing electric sewer be merely only by original foot-propelled lead agency be revised as motor drive, although so keeping away Exempt from the problem that volume is big and foot is tired of foot-propelled sewing machine, existing electric sewer operates for motor, is required for In sewing machine, one driver of setting carrys out motor operating, and existing driver is only simple by after Power convert It is input to motor rotation in motor, thus needing to realize when electric sewer has several functions, just seeming inadequate Intellectuality, and this mode motor nor the good rotating speed ensureing motor are it is impossible to carry out well sewing.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is to provide one kind more intelligent, can be very The electric sewer controller of the good rotating speed of guarantee motor.

For achieving the above object, this utility model provides following technical scheme：A kind of electric sewer controller, its It is characterised by：Including：

Power circuit, this power circuit has input and outfan, and input is coupled to outside civil power, and outfan exports DC source；

Governor circuit, is coupled to power circuit, and to receive the DC source of power circuit output, it is defeated that it has multiple signals Enter outfan；

H-bridge circuit, this H-bridge circuit is coupled to signal input output end and power circuit in governor circuit, is further coupled to External motor, to receive the signal drive motor operating of governor circuit output, and to governor circuit input feedback signal；

Interface circuit, is coupled to the signal input output end in governor circuit, with to governor circuit input signal.

As further improvement of the utility model, described power circuit includes：

Rectification circuit, this rectification circuit has input and outfan, and its input is coupled to outside mains supply, output End output DC source；

Switching power circuit, this switching power circuit has input and outfan, and its input is coupled to rectification circuit Outfan, export low-tension supply by after the modulation of the DC source of rectification circuit output end.

As further improvement of the utility model, described rectification circuit includes rectification bridge chip and filter circuit, described Rectification bridge chip has input and outfan, and its input is coupled to outside civil power, and outfan is coupled to coupling after filter circuit It is connected to H-bridge circuit, between its outfan and filter circuit, is coupled with anti-impact circuit, described anti-impact circuit circuit includes：

One end of surge resistance RT1, described surge resistance RT1 is coupled to the outfan of rectification bridge chip, the other end It is coupled to filter circuit；

Short circuit current, this short circuit current is in parallel with surge resistance RT1, by protecting against shock after the output of rectification bridge chip is stablized Resistance RT1 short circuit, described short circuit current includes：

Short-circuit relay, this short-circuit relay has switch sections and electromagnet portion, described switch sections and protecting against shock electricity RT1 is in parallel for resistance, the opening and disconnected of electromagnet portion controlling switch part；

Drive circuit, this drive circuit is coupled to short-circuit relay, dynamic in order to provide to the electromagnet portion of short-circuit relay Make signal, wherein drive circuit includes switch triode Q1, and the base stage of this switch triode Q1 is coupled to master after being coupled with resistance Control circuit, grounded emitter, emitter stage is coupled to base stage after being also coupled to resistance, colelctor electrode is coupled to the electromagnetism of short-circuit relay Partly it is coupled to power supply afterwards.

As further improvement of the utility model, model BRIDGE-B of described rectification bridge chip, surge resistance The resistance of RT1 is 510 Ω/3W, model G5LA-1A-DC12V of short-circuit relay, the model 8050 of switch triode Q1.

As further improvement of the utility model, described switching power circuit includes PWM chip, mains transformer and anti- Current feed circuit, described mains transformer has input and outfan, and its input is coupled to external power source, and outfan exports direct current Power supply, described mains transformer and feedback circuit are all coupled with PWM chip, and described feedback circuit includes：

Reference voltage circuit, this reference voltage circuit has input and outfan, the input of described reference voltage circuit End is coupled to the outfan of mains transformer, outfan output reference voltage, and the outfan of described reference voltage circuit is coupled to The outfan of mains transformer；

Isolation circuit, this isolation circuit has input and outfan, and the input of described isolation circuit is coupled to benchmark The outfan of potential circuit, the outfan of described isolation circuit is coupled to PWM chip, and described reference voltage circuit includes stabilivolt A1, this stabilivolt A1 has first end, the second end and control end, and described first end is coupled to the input of isolation circuit, and also It is coupled to the outfan of mains transformer, the second end ground connection, control end is coupled to power supply after being coupled with resistance after being coupled with resistance The outfan of transformator, is grounded after being also coupled to resistance, and is also coupled to coupling after a parallel with one another resistance and an electric capacity It is connected to first end, described isolation circuit includes power circuit, this power circuit is coupled to PWM chip and the output of mains transformer To power to PWM chip between end, this power circuit includes diode D7, and the anode of this diode D7 is coupled to power supply transformation The outfan of device, negative electrode is coupled to PWM chip；Wherein, negative electrode is coupled to the output of light coupling relay U2 after being also coupled to resistance End；Filter circuit, this filter circuit includes filter capacitor C26 and filter capacitor C24, described filter capacitor C26 and filter capacitor C24 is parallel with one another, and is connected in parallel between negative electrode and the PWM chip of diode D7；Described isolation circuit also includes light coupling relay U2, this light coupling relay U2 has input and outfan, and the input of described light coupling relay U2 is coupled to reference voltage electricity The outfan on road, outfan is coupled to PWM chip, and wherein, outfan is further coupled to power circuit.

As further improvement of the utility model, described PWM chip is the power supply chip that model is VIPER12, this electricity Source chip has output pin, power pins and feedback pin, and described power pins are coupled to the negative electrode of diode D7, and output is drawn Foot is coupled to the input of mains transformer, and feedback pin is coupled to the outfan of light coupling relay U2, described mains transformer Model EE16, model TL431 of described stabilivolt A1, model EL357C of described light coupling relay U2, described two Model LL4148 of pole pipe D7, filter capacitor C26 is 104 ceramic disc capacitors, and the capacity of filter capacitor C24 is 22uF/50V.

As further improvement of the utility model, described governor circuit includes：

Main control chip, is coupled to H-bridge circuit, in order to send drive signal to H-bridge circuit so that H-bridge circuit motor Rotation, this main control chip has multiple I/O mouths as signal input output end；

H bridge current detection circuit, is coupled to main control chip, is further coupled to H-bridge circuit, in order to detect H-bridge circuit electric current, and This current signal is input in main control chip, described H bridge current detection circuit includes：

First current sense resistor R11, one end of this first current sense resistor R11 is coupled to main control chip, the other end It is coupled to H-bridge circuit；

Second current sense resistor R31, one end of this second current sense resistor R31 is coupled to the first current sense resistor R11 is coupled to one end of main control chip, and its other end is coupled to power supply；

One end of current detecting electric capacity C6, this current detecting electric capacity C6 is coupled to the first current sense resistor R11 and is coupled to One end of main control chip, the other end is grounded.

As further improvement of the utility model, described H-bridge circuit includes：

U phase drive circuit, V phase drive circuit and W phase drive circuit, described U phase drive circuit, V phase drive circuit and W phase Drive circuit all includes：

Positive signal amplifying circuit, this positive signal amplifying circuit has input and outfan, and wherein input couples In governor circuit, outfan output cathode drive signal；

Positive pole IGBT manages, and this positive pole IGBT pipe has first end, the second end and control end, and described control end couples and positive pole The outfan of signal amplification circuit, to receive positive pole drive signal, first end is coupled to external dc power, and the second end is coupled to Three phase electric machine；

Negative signal amplifying circuit, this negative signal amplifying circuit has input and outfan, and wherein input couples In governor circuit, outfan output negative pole drive signal；

Negative pole IGBT manages, and this negative pole IGBT pipe has first end, the second end and control end, and described control end couples and negative pole The outfan of signal amplification circuit, to receive negative pole drive signal, first end is coupled to three phase electric machine, the second end ground connection.

As further improvement of the utility model, described positive signal amplifying circuit includes：

Detection part, is coupled to power supply and is further coupled to governor circuit, power supply signal is converted into voltage signal and is input to In governor circuit, this detection part includes diode D14, and the anode of this diode D14 is coupled to power supply, and negative electrode is coupled with mutually It is coupled to governor circuit after the electric capacity C20 of series connection and resistance R27；

Positive pole amplifier section, this positive pole amplifier section has input and outfan, and its input is coupled to governor circuit, Outfan is coupled to the control end of positive pole IGBT pipe, to input the positive pole drive signal after amplifying to positive pole IGBT pipe, wherein just Pole amplifier section includes：

Positive pole first amplifying triode, the colelctor electrode of this positive pole first amplifying triode is coupled to two poles after being coupled with resistance The negative electrode of pipe D14, emitter stage is grounded after being coupled with resistance, and base stage is coupled to governor circuit, wherein, positive pole first amplifying triode Base stage be also coupled to resistance after be coupled to its emitter stage；

Positive pole second amplifying triode, the base stage of this positive pole second amplifying triode is coupled to positive pole first amplifying triode Colelctor electrode, the emitter stage of described positive pole second amplifying triode is coupled to the negative electrode of diode D14, and colelctor electrode is coupled with resistance It is coupled to afterwards between the second end of positive pole IGBT pipe and the first end of negative pole IGBT pipe；Positive pole the 3rd amplifying triode, this positive pole The base stage of the 3rd amplifying triode is coupled to the colelctor electrode of positive pole second amplifying triode, described positive pole the 3rd amplifying triode Emitter stage is coupled to the control end of positive pole IGBT pipe, and colelctor electrode is coupled to the second end of positive pole IGBT pipe and the of negative pole IGBT pipe Between one end, the base stage of described positive pole the 3rd amplifying triode is coupled to its emitter stage after being also coupled to diode D17, and described two The anode of pole pipe D17 is coupled with the base stage of positive pole the 3rd amplifying triode, and negative electrode amplifies three poles with positive pole the 3rd after having resistance R36 The emitter stage of pipe couples, and described negative signal amplifying circuit includes：

Negative pole amplifier section, this negative pole amplifier section has input and outfan, and its input is coupled to governor circuit, Outfan is coupled to the control end of negative pole IGBT pipe, with the negative pole drive signal after amplifying to the input of negative pole IGBT pipe, this negative pole Amplifier section includes：

Negative pole first amplifying triode, the colelctor electrode of this negative pole first amplifying triode is coupled to electricity after being coupled with resistance Source, emitter stage is grounded after being coupled with resistance, and base stage is coupled to governor circuit, and wherein, the base stage of negative pole first amplifying triode is also It is coupled to its emitter stage after being coupled with resistance；

Negative pole second amplifying triode, the base stage of this negative pole second amplifying triode is coupled to negative pole first amplifying triode Colelctor electrode, the emitter stage of described negative pole second amplifying triode is coupled to diode power source, and colelctor electrode is coupled with resistance and is followed by Ground；

Negative pole the 3rd amplifying triode, the base stage of this negative pole the 3rd amplifying triode is coupled to negative pole second amplifying triode Colelctor electrode, the emitter stage of described negative pole the 3rd amplifying triode is coupled to the control end of negative pole IGBT pipe, grounded collector, institute State negative pole the 3rd amplifying triode base stage be also coupled to diode D20 after be coupled to its emitter stage, the sun of described diode D20 Pole is coupled with the base stage of negative pole the 3rd amplifying triode, negative electrode be coupled with after resistance R48 with the sending out of negative pole the 3rd amplifying triode Emitter-base bandgap grading couples.

As further improvement of the utility model, the model of described positive pole IGBT pipe (d6) and negative pole IGBT pipe (d7) is equal For SGT15N60NPFDF, model US1M of described diode D14, the capacitance of electric capacity C20 is 10Uf/25V, the resistance of resistance R27 Be worth for 100K, the model 13001 of described positive pole first amplifying triode (d421), positive pole second amplifying triode (d422) and The model of positive pole the 3rd amplifying triode (d423) is 8550, model 1N4148WS of described diode D17, resistance R36 Resistance be 200 Ω, the model 8050 of described negative pole first amplifying triode (d521), negative pole second amplifying triode And the model of negative pole the 3rd amplifying triode (d523) is 8550, model 1N4148WS of diode D20, resistance (d522) The resistance of R48 is 200 Ω.

The beneficial effects of the utility model, by the setting of power circuit it is possible to effectively change outside civil power Become the power supply required for controller inside, and pass through the setting of governor circuit and H-bridge circuit it is possible to effective realize intelligence Change the effect of controlled motor operating, extemal component and master control electricity just can effectively be connected by the setting of interface circuit Lu Liao, effectively achieves the Function Extension of controller so that controller is more intelligent, can be good at stablizing motor Rotating speed is so that sewing machine can be good at carrying out sewing.

Brief description

Fig. 1 is the circuit diagram of electric sewer controller of the present utility model；

Fig. 2 is the circuit diagram of rectification circuit in Fig. 1；

Fig. 3 is the circuit diagram of Fig. 1 breaker in middle power circuit；

Fig. 4 is the circuit diagram of governor circuit in Fig. 1.

Specific embodiment

Below in conjunction with the embodiment given by accompanying drawing, this utility model is described in further detail.

Referring to figs. 1 to shown in 4, a kind of electric sewer controller of the present embodiment it is characterised in that：Including：Power supply electricity Road, this power circuit has input and outfan, and input is coupled to outside civil power, and outfan exports DC source；

Governor circuit c, is coupled to power circuit, and to receive the DC source of power circuit output, it has multiple signals Input/output terminal；

H-bridge circuit d, this H-bridge circuit d is coupled to signal input output end and power circuit in governor circuit c, is also coupled to In external motor, to receive the signal drive motor operating of governor circuit c output, and to governor circuit c input feedback signal；

Interface circuit e, is coupled to the signal input output end in governor circuit c, with to governor circuit c input signal, During the work of electric sewer controller, the alternating current power supply of outside civil power is turned by the transduction first passing through power circuit Change DC source output into, governor circuit c will work after receiving DC source, constantly pass through its signal input defeated Go out end to receive and send signal, the drive signal that it sends will enter in H-bridge circuit d, then H-bridge circuit d will work, The source current different directions of power circuit are flow through three phase electric machine, then three phase electric machine will enter according to this drive signal Row have rotated, thus effectively achieves the effect of controlled motor rotating speed so that controller is more intelligent, and the present embodiment In interface circuit include motor interface circuit；User-machine interface circuit；Pedal input interface circuit, determines needle interface circuit, Wherein motor interface circuit includes supplying electrical prongs, described confession electrical prongs include A phase current output pin, B phase current output pin, C phase current output pin, described A phase current output pin, B phase current output pin, C phase current output pin connect electricity respectively The A phase input of machine, B phase input and C phase input；Signal feeds back pin, and it is defeated that described signal feedback pin includes A phase signals Enter pin, B phase signals input pin and C phase signals input pin, described A phase signals input pin, B phase signals input pin and C phase signals input pin connects A phase input, B phase input and the C phase input of motor respectively, and described A phase signals input is drawn Foot, B phase signals input pin and C phase signals input pin are also all coupled with the control chip in driver, user-machine interface Circuit includes man machine interface pin, grafting external display device, such as LCD etc., and pedal input interface circuit includes pedal pin, should Pedal pin includes power pins, grounding pin and signal pins, and described power pins are coupled to power supply, and grounding pin is grounded, Described power pins, grounding pin and signal pins are all coupled to outside pedal, and described signal pins have been also coupled to coupling after resistance It is connected to the control chip of driver, and is also coupled to ground connection after resistance parallel with one another and electric capacity, determine needle interface circuit and include determining Needle interface pin, described determine needle interface pin and include up pin and descending pin, described up pin and descending pin all with Outside is determined pin device and is coupled, and also couples with the control chip of driver, so just can effectively realize Function Extension, structure letter Unilaterally, and use when very quick.

As a kind of improved specific embodiment, described power circuit includes：

Rectification circuit a, this rectification circuit a has input and outfan, and its input is coupled to outside mains supply, defeated Go out end output DC source；

Switching power circuit b, this switching power circuit b has input and outfan, and its input is coupled to rectified current The outfan of road a, exports low-tension supply by after the DC source modulation of rectification circuit a outfan, in power circuit work During, the input that the alternating current of outside civil power first passes through rectification circuit a enters in rectification circuit a, through rectified current It is possible to the AC rectification of civil power is become unidirectional current, then unidirectional current exports from outfan for the setting of road a.

As a kind of improved specific embodiment, described rectification circuit a includes rectification bridge chip a1 and filter circuit a2, Described rectification bridge chip a1 has input and outfan, and its input is coupled to outside civil power, and outfan is coupled to filtered electrical It is coupled to H-bridge circuit d after the a2 of road, between its outfan and filter circuit a2, be coupled with anti-impact circuit a3, described protecting against shock electricity Road a3 circuit includes：

One end of surge resistance RT1, described surge resistance RT1 is coupled to the outfan of rectification bridge chip a1, another End is coupled to filter circuit a2；

Short circuit current a31, this short circuit current a31 is in parallel with surge resistance RT1, after rectification bridge chip a1 output is stablized By surge resistance RT1 short circuit, described short circuit current a31 includes：

Short-circuit relay a311, this short-circuit relay a311 have switch sections and an electromagnet portion, described switch sections with Surge resistance RT1 is in parallel, the opening and disconnected of electromagnet portion controlling switch part；

Drive circuit a312, this drive circuit a312 is coupled to short-circuit relay a311, in order to short-circuit relay a311 Electromagnet portion actuating signal is provided, wherein drive circuit a312 includes switch triode Q1, the base stage of this switch triode Q1 It is coupled to governor circuit c, grounded emitter, emitter stage is coupled to base stage, colelctor electrode after being also coupled to resistance after being coupled with resistance It is coupled to power supply after the electromagnet portion being coupled to short-circuit relay a311, in the work process of DC power supply circuit, outside city The alternating current of electricity will flow in the input of rectification bridge chip a1, is converted into alternating current by rectification bridge chip a1 DC current exports high-voltage direct current from the outfan of rectification bridge chip a1, and then DC current is flowed into filter circuit a2 Interior, after filtering after circuit a2 filter action, the power supply just effectively stablizing rectification bridge chip a1 outputs, in DC source Circuit work during, rectification bridge chip a1 at the beginning when, its outfan will occur dash current, and dash current is just Surge resistance RT1 can be flow through, surge resistance RT1 will carry out the effect of a buffering, so just can effectively avoid The series of problems that dash current causes, and pass through the setting of short circuit current a31 it is possible to effectively rectification bridge chip a1's Dash current stably after surge resistance RT1 is shorted out, so just can effectively avoid surge resistance RT1 long when Between work after the problem damaged, it also avoid the lifting of power consumption, by the setting of short-circuit relay a311 it is possible to reality simultaneously The effect of an existing Small current control high current, thus driver just can be realized by the mating reaction of drive circuit a312 Whether control chip controls short-circuit relay a311 by the effect of surge resistance RT1 short circuit, due to the drive of general relay Galvanic electricity pressure is all higher, and the signal voltage of control chip output is not enough to drive relay, thus by switch triode Q1's Setting is it is possible to the output signal effectively realizing control chip strengthens the effect driving relay.

As a kind of improved specific embodiment, model BRIDGE-B of described rectification bridge chip a1, protecting against shock electricity The resistance of resistance RT1 is 510 Ω/3W, model G5LA-1A-DC12V of short-circuit relay a311, the model of switch triode Q1 For 8050, BRIDGE-B chip, there is good rectification characteristic, it is primarily directed to carry out rectification in mains supply 220V, because And with here can be to realize the effect of rectification well, the relay of G5LA-1A-DC12V, just permissible using 12V power supply Effectively drive, so avoid the need for one power circuit of extra setting to drive it, 8050 audions are normal on the market The audion seen, convenient and with low cost with being used herein, the resistance of surge resistance RT1 just can be fine for 510 Ω/3W The effect realizing a protecting against shock, and power consumption is little.

As a kind of improved specific embodiment, described switching power circuit b includes PWM chip b1, mains transformer B2 and feedback circuit b3, described mains transformer b2 has input and outfan, and its input is coupled to external power source, output End output DC source, described mains transformer b2 and feedback circuit b3 is all coupled with PWM chip b1, described feedback circuit b3 bag Include：

Reference voltage circuit b31, this reference voltage circuit b31 has input and outfan, described reference voltage circuit The input of b31 is coupled to the outfan of mains transformer b2, outfan output reference voltage, described reference voltage circuit b31 Outfan be coupled to the outfan of mains transformer b2；

Isolation circuit b32, this isolation circuit b32 has input and outfan, the input coupling of described isolation circuit b32 It is connected to the outfan of reference voltage circuit b31, the outfan of described isolation circuit b32 is coupled to PWM chip b1, described benchmark electricity Volt circuit b31 includes stabilivolt A1, and this stabilivolt A1 has first end, the second end and control end, described first end be coupled to every From the input of circuit b32, and it is coupled to the outfan of mains transformer b2 after being also coupled to resistance, the second end ground connection, control End is coupled to the outfan of mains transformer b2 after being coupled with resistance, be grounded, and be also coupled to mutually simultaneously after being also coupled to resistance It is coupled to first end, described isolation circuit b32 includes power circuit b321, this power supply electricity after one resistance of connection and an electric capacity Road b321 is coupled to power to PWM chip b1 between PWM chip b1 and the outfan of mains transformer b2, this power circuit B321 includes diode D7, and the anode of this diode D7 is coupled to the outfan of mains transformer b2, and negative electrode is coupled to PWM chip b1；Wherein, negative electrode is coupled to the outfan of light coupling relay U2 after being also coupled to resistance；Filter circuit b3211, this filter circuit B3211 includes filter capacitor C26 and filter capacitor C24, and described filter capacitor C26 and filter capacitor C24 are parallel with one another, and in parallel Between the negative electrode of diode D7 and PWM chip b1；Described isolation circuit b32 also includes light coupling relay U2, this optocoupler relay Device U2 has input and outfan, and the input of described light coupling relay U2 is coupled to the output of reference voltage circuit b31 End, outfan is coupled to PWM chip b1, and wherein, outfan is further coupled to power circuit b321, by PWM chip b1 and power supply The mating reaction of transformator b2 is it is possible to external power source is converted into galvanic current source and outputs by effective realization, and leads to Cross the setting of the reference voltage circuit b31 of feedback circuit b3 and contrasted with supply voltage it is possible to effectively achieve one Effect, so just can be good at judging now whether supply voltage is in abnormality, thus just it can be avoided that power supply Voltage feedback circuit b3 under normal variation feeds back to PWM chip b1 so that the whole problem of mistuning in PWM chip b1, leads to simultaneously Cross the setting of isolation circuit b32, when reference voltage circuit b31 judges as supply voltage abnormality, feed back signal Will send from reference voltage circuit b31, then in isolation circuit b32, through the buffer action of isolation circuit b32, Filter the electrical Interference signal in signal, this makes it possible to preferably feed back to PWM chip b1, by setting of stabilivolt A1 Put it is possible to effectively provide a reference voltage, and used in the present embodiment, stabilivolt A1 is TL431, so logical Cross arrangement above, an amplitude discriminator will be constituted, effectively whether identification voltage magnitude now is normal, by power circuit The setting of b321 is it is possible to effectively power to PWM chip b1, and passes through the setting of light coupling relay U2 it is possible to effectively The effect realizing a Phototube Coupling, due to needing a reference value in light coupling relay U2 work process, thus by with Upper setting just effectively can be supplied to mono- reference value of light coupling relay U2 by supply voltage, by filter circuit The setting of the filter capacitor C26 in b3211 and filter capacitor C24 is it is possible to effectively enter to the power supply being input to PWM chip b1 One filter action of row is so that power supply can preferably be powered for PWM chip b1.

As a kind of improved specific embodiment, described PWM chip b1 is the power supply chip that model is VIPER12, should Power supply chip has output pin, power pins and feedback pin, and described power pins are coupled to the negative electrode of diode D7, output Pin is coupled to the input of mains transformer b2, and feedback pin is coupled to the outfan of light coupling relay U2, and described power supply becomes Model EE16 of depressor b2, model TL431 of described stabilivolt A1, model EL357C of described light coupling relay U2, Model LL4148 of described diode D7, filter capacitor C26 is 104 ceramic disc capacitors, and the capacity of filter capacitor C24 is 22uF/ 50V, VIPER12PWM chip b1 has response speed soon, the simple effect of peripheral circuit structure, the power consumption of itself simultaneously Suitable is low, thus with the power consumption of whole switching power circuit can be effectively reduced here, real soon by its response speed The voltage of existing Switching Power Supply output is more stable, and the mains transformer of EE16 is to carry out transformation using the equal principle of power Transformator, compact, thus with the one hand transformation effect can be realized here, whole switch electricity on the other hand can be reduced The volume in source, TL431 stabilivolt is controlled stabilivolt, and it is with low cost, compact, same in the effect achieving voltage stabilizing output When, the volume of power circuit can also be avoided to increase, and filter capacitor C26 is 104 ceramic disc capacitors, the appearance of filter capacitor C24 Measure as 22uF/50V it is possible to realize the filter action of 15V well so as to preferably power to PWM chip b1.

As a kind of improved specific embodiment, described governor circuit c includes：

Main control chip c2, is coupled to H-bridge circuit d, in order to send drive signal to H-bridge circuit d so that H-bridge circuit d drives Motor rotates, and this main control chip c2 has multiple I/O mouths as signal input output end；

H bridge current detection circuit c1, is coupled to main control chip c2, is further coupled to H-bridge circuit d, in order to detect H-bridge circuit d Electric current, and this current signal is input in main control chip c2, described H bridge current detection circuit c1 includes：

First current sense resistor R11, one end of this first current sense resistor R11 is coupled to main control chip c2, another End is coupled to H-bridge circuit d；

Second current sense resistor R31, one end of this second current sense resistor R31 is coupled to the first current sense resistor R11 is coupled to one end of main control chip c2, and its other end is coupled to power supply；

One end of current detecting electric capacity C6, this current detecting electric capacity C6 is coupled to the first current sense resistor R11 and is coupled to One end of main control chip c2, the other end is grounded, and during electric sewer uses, main control chip 2 first sends drive signal To in H-bridge circuit d, H-bridge circuit d will drive external motor have rotated according to this signal, during motor rotation, H Bridge current detection circuit c1 will real-time detection H-bridge circuit d circulating current, due to the rotating speed of motor with flow through electric current in it Size is relevant, and flows through the electric current of motor internal and current related within H-bridge circuit d, so just can be by detecting H bridge Circuit d internal current come to realize detect motor rotating speed, so motor speed occur change when it is possible to lead in time Cross main control chip c2 and adjust the signal being input in H-bridge circuit d to realize adjusting the effect of motor speed, effectively achieve The Running at a constant speed of motor, during detection H-bridge circuit d electric current, the electric current in H-bridge circuit d will pass through first first Detection resistance R11 in main control chip c2, and pass through the second detection resistance R31 setting it is possible to the first detection resistance R11 Cooperation is stably input to the electric current in main control chip c2, and passes through the setting of current detecting electric capacity C6 it is possible to effectively play The effect of one filtering is it is achieved that be input to the effect that in main control chip c2, signal is not interfered.

As a kind of improved specific embodiment, described H-bridge circuit d includes：

U phase drive circuit d1, V phase drive circuit d2 and W phase drive circuit d3, described U phase drive circuit d1, V phase drives Circuit d2 and W phase drive circuit d3 all includes：

Positive signal amplifying circuit d4, this positive signal amplifying circuit d4 has input and outfan, wherein input It is coupled to governor circuit c, outfan output cathode drive signal；

Positive pole IGBT pipe d6, this positive pole IGBT pipe d6 has first end, the second end and control end, described control end couple with The outfan of positive signal amplifying circuit d4, to receive positive pole drive signal, first end is coupled to external dc power, the second end It is coupled to three phase electric machine；

Negative signal amplifying circuit d5, this negative signal amplifying circuit d5 has input and outfan, wherein input It is coupled to governor circuit c, outfan output negative pole drive signal；

Negative pole IGBT pipe d7, this negative pole IGBT pipe d7 has first end, the second end and control end, described control end couple with The outfan of negative signal amplifying circuit d5, to receive negative pole drive signal, first end is coupled to three phase electric machine, the second termination Ground, during H-bridge circuit work, main control chip c2 first will send drive signal and drive to U phase drive circuit d1, V phase Galvanic electricity road d2 and W phase drive circuit d3, to drive positive pole IGBT pipe d6 and negative pole IGBT pipe d7 in rising, in drive signal When coming in, the drive signal of positive pole can enter in the positive signal amplifying circuit d4 in three drive circuits first, leads to After crossing the amplification of positive signal amplifying circuit d4, positive signal just be enough to drive positive pole IGBT pipe d6, negative signal Working method is identical with positive pole, thus the signal that just can realize general control chip pin output well also can drive IGBT pipe d6 work, thus compared to existing technology in need using special control chip, its cost is much lower.

As a kind of improved specific embodiment, described positive signal amplifying circuit d4 includes：

Detection part d41, is coupled to power supply and is further coupled to governor circuit c, power supply signal is converted into voltage signal defeated Enter in governor circuit c, this detection part d41 includes diode D14, the anode of this diode D14 is coupled to power supply, negative electrode coupling It is coupled to governor circuit c after being connected to the electric capacity C20 being serially connected and resistance R27；Positive pole amplifier section d42, this positive pole enlarging section D42 is divided to have input and outfan, its input is coupled to governor circuit c, and outfan is coupled to the control of positive pole IGBT pipe d6 End processed, with the positive pole drive signal after amplifying to positive pole IGBT pipe d6 input, wherein positive pole amplifier section d42 includes：

Positive pole the first amplifying triode d421, the colelctor electrode of this positive pole the first amplifying triode d421 is coupled with coupling after resistance It is connected to the negative electrode of diode D14, emitter stage is grounded after being coupled with resistance, and base stage is coupled to governor circuit c, wherein, positive pole first The base stage of amplifying triode d421 is coupled to its emitter stage after being also coupled to resistance；

Positive pole the second amplifying triode d422, the base stage of this positive pole the second amplifying triode d422 is coupled to positive pole first and puts The colelctor electrode of big audion d421, the emitter stage of described positive pole the second amplifying triode d422 is coupled to the negative electrode of diode D14, Colelctor electrode is coupled to after being coupled with resistance between second end of positive pole IGBT pipe d6 and the first end of negative pole IGBT pipe d7；

Positive pole the 3rd amplifying triode d423, the base stage of this positive pole the 3rd amplifying triode d423 is coupled to positive pole second and puts The colelctor electrode of big audion, the emitter stage of described positive pole the 3rd amplifying triode d423 is coupled to the control of positive pole IGBT pipe d6 End, colelctor electrode is coupled between second end of positive pole IGBT pipe d6 and the first end of negative pole IGBT pipe d7, and described positive pole the 3rd is put The base stage of big audion d423 is coupled to its emitter stage after being also coupled to diode D17, the anode of described diode D17 with just The base stage of pole the 3rd amplifying triode d423 couples, and negative electrode is coupled with after resistance R36 with positive pole the 3rd amplifying triode d423's Emitter stage couples, and described negative signal amplifying circuit d5 includes：

Negative pole amplifier section d51, this negative pole amplifier section d51 has input and outfan, and its input is coupled to master Control circuit dc, outfan is coupled to the control end of negative pole IGBT pipe d7, is driven with the negative pole after amplifying to negative pole IGBT pipe d7 input Dynamic signal, this negative pole amplifier section d51 includes：

Negative pole the first amplifying triode d521, the colelctor electrode of this negative pole the first amplifying triode d521 is coupled with coupling after resistance It is connected to power supply, emitter stage is grounded after being coupled with resistance, and base stage is coupled to governor circuit c, wherein, negative pole first amplifying triode The base stage of d521 is coupled to its emitter stage after being also coupled to resistance；

Negative pole the second amplifying triode d522, the base stage of this negative pole the second amplifying triode d522 is coupled to negative pole first and puts The colelctor electrode of big audion d521, the emitter stage of described negative pole the second amplifying triode d522 is coupled to diode power source, current collection Pole is grounded after being coupled with resistance；

Negative pole the 3rd amplifying triode d523, the base stage of this negative pole the 3rd amplifying triode d523 is coupled to negative pole second and puts The colelctor electrode of big audion, the emitter stage of described negative pole the 3rd amplifying triode d523 is coupled to the control end of negative pole IGBT pipe 7, Grounded collector, the base stage of described negative pole the 3rd amplifying triode d523 is coupled to its emitter stage after being also coupled to diode D20, The anode of described diode D20 is coupled with the base stage of negative pole the 3rd amplifying triode d523, after negative electrode is coupled with resistance R48 and negative The emitter stage of pole the 3rd amplifying triode d523 couples, by the setting of detection part d41 it is possible to input is effectively detected Electric current within to H-bridge circuit, so just can effectively be detected three phase electric machine rotating speed now, and be amplified by positive pole The setting of part d42, it is possible to effectively play the effect that a signal amplifies, is effectively amplified to positive signal, leads to The setting crossing diode D14 just can be realized preventing the problem in electric current backflow telegram in reply source, by setting of electric capacity C20 and resistance R27 Put and just can effectively play a protective effect, it is to avoid the problem that the main control chip c2 that the current break of detection leads to damages, By positive pole the first amplifying triode d421, positive pole the second amplifying triode d422 and positive pole the 3rd amplifying triode d423 Setting, it is possible to effectively realize the effect that a three-level is amplified, so just can effectively ensure that positive signal is amplified to foot To drive positive pole IGBT pipe d6, simultaneously because its first end and the second end have been required for electricity when positive pole IGBT pipe d6 cut-offs Pressure, thus by the colelctor electrode of positive pole the second amplifying triode d422 is coupled with that resistance is followed by positive pole IGBT pipe d6 second End, just can effectively meet this condition, and pass through the setting of negative pole amplifier section d51 it is possible to effectively play one The effect that signal amplifies, is effectively amplified to negative signal, is allowed to coordinate with positive signal, preferably drives negative pole IGBT Pipe d7, by negative pole the first amplifying triode d521, negative pole the second amplifying triode d522 and negative pole the 3rd amplifying triode The setting of d523, it is possible to effectively realize the effect that a three-level is amplified, so just can effectively ensure that negative signal is put It is large enough to drive negative pole IGBT pipe d6.

As a kind of improved specific embodiment, the model of described positive pole IGBT pipe d6 and negative pole IGBT pipe d7 is SGT15N60NPFDF, model US1M of described diode D14, the capacitance of electric capacity C20 is 10Uf/25V, the resistance of resistance R27 For 100K, the model 13001 of described positive pole the first amplifying triode d421, positive pole the second amplifying triode d422 and positive pole The model of three amplifying triode d423 is 8550, model 1N4148WS of described diode D17, and the resistance of resistance R36 is 200 Ω, the model 8050 of described negative pole the first amplifying triode d521, negative pole the second amplifying triode d522 and negative pole the 3rd The model of amplifying triode d523 is 8550, model 1N4148WS of diode D20, and the resistance of resistance R48 is 200 Ω, The IGBT pipe of SGT15N60NPFDF have good Interruption performance be can be very good with coming here realization cut-off motor operating , the diode of US1M is with can to play the effect of a drain well, and the capacitance of electric capacity C20 be here The resistance of 10Uf/25V, resistance R27 is that the 3.3V that is depressured to of 15V just effectively can be supplied external piloting control chip to identify by 100K , and 8550 and 13001 is existing conventional amplifying triode, using here can be effectively to realize the work of an amplification With, and the 200 Ω resistance cooperations of the diode of 1N4148WS and resistance R36 just can effectively be realized amplification and output, so Just can be good at driving positive pole IGBT pipe 6, model 1N4148WS of diode D20, the resistance of resistance R48 is 200 Ω, 8050th, 8550 audions and 1N4148WS diode are existing very common devices, with being had with simple and quick here The effect realizing negative pole amplification of effect, the resistance of resistance R48 is arranged to 200 Ω it is possible to effectively output one stable Drive signal.

In sum, outside mains electricity just effectively can be converted into by unidirectional current by the setting of power circuit , and the setting passing through governor circuit c and H-bridge circuit d just can realize the effect of Based Intelligent Control motor operating so that controller More intelligent, by the setting of interface circuit e it is possible to effectively realize Function Extension so that controller more intelligence Energy.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonging under this utility model thinking belong to protection domain of the present utility model.Should refer to Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (10)

1. a kind of electric sewer controller it is characterised in that：Including：

Power circuit, this power circuit has input and outfan, and input is coupled to outside civil power, and outfan exports direct current Power supply；

Governor circuit (c), is coupled to power circuit, and to receive the DC source of power circuit output, it is defeated that it has multiple signals Enter outfan；

H-bridge circuit (d), this H-bridge circuit (d) is coupled to signal input output end and power circuit in governor circuit (c), goes back coupling It is connected to external motor, to receive the signal drive motor operating that governor circuit (c) exports, and to governor circuit (c) input feedback Signal；

Interface circuit (e), is coupled to the signal input output end in governor circuit (c), with to governor circuit (c) input signal.

2. electric sewer controller according to claim 1 it is characterised in that：Described power circuit includes：Rectified current Road (a), this rectification circuit (a) has input and outfan, and its input is coupled to outside mains supply, and outfan output is straight Stream power supply；

Switching power circuit (b), this switching power circuit (b) has input and outfan, and its input is coupled to rectified current The outfan on road (a), exports low-tension supply by after the DC source modulation of rectification circuit (a) outfan.

3. electric sewer controller according to claim 2 it is characterised in that：Described rectification circuit (a) includes rectification Bridge chip (a1) and filter circuit (a2), described rectification bridge chip (a1) has input and outfan, and its input is coupled to Outside civil power, outfan is coupled to H-bridge circuit (d) after being coupled to filter circuit (a2), its outfan and filter circuit (a2) it Between be coupled with anti-impact circuit (a3), described anti-impact circuit (a3) circuit includes：

One end of surge resistance RT1, described surge resistance RT1 is coupled to the outfan of rectification bridge chip (a1), the other end It is coupled to filter circuit (a2)；

Short circuit current (a31), this short circuit current (a31) is in parallel with surge resistance RT1, when rectification bridge chip (a1) output is stable Afterwards by surge resistance RT1 short circuit；

Described short circuit current (a31) includes：

Short-circuit relay (a311), this short-circuit relay (a311) has switch sections and an electromagnet portion, described switch sections with Surge resistance RT1 is in parallel, the opening and disconnected of electromagnet portion controlling switch part；

Drive circuit (a312), this drive circuit (a312) is coupled to short-circuit relay (a311), in order to short-circuit relay (a311) electromagnet portion provides actuating signal, and wherein drive circuit (a312) includes switch triode Q1, this switch triode The base stage of Q1 is coupled to governor circuit (c), grounded emitter after being coupled with resistance, emitter stage is coupled to base after being also coupled to resistance Pole, colelctor electrode is coupled to power supply after being coupled to the electromagnet portion of short-circuit relay (a311).

4. electric sewer controller according to claim 3 it is characterised in that：The model of described rectification bridge chip (a1) For BRIDGE-B, the resistance of surge resistance RT1 is 510 Ω/3W, model G5LA-1A- of short-circuit relay (a311) The model 8050 of DC12V, switch triode Q1.

5. the electric sewer controller according to Claims 2 or 3 or 4 it is characterised in that：Described switching power circuit B () includes PWM chip (b1), mains transformer (b2) and feedback circuit (b3), described mains transformer (b2) has input And outfan, its input is coupled to external power source, and outfan exports DC source, and described mains transformer (b2) and feedback are electric Road (b3) is all coupled with PWM chip (b1), and described feedback circuit (b3) includes：

Reference voltage circuit (b31), this reference voltage circuit (b31) has input and outfan, described reference voltage circuit (b31) input is coupled to the outfan of mains transformer (b2), outfan output reference voltage, described reference voltage circuit (b31) outfan is coupled to the outfan of mains transformer (b2)；Isolation circuit (b32), this isolation circuit (b32) has defeated Enter end and outfan, the input of described isolation circuit (b32) is coupled to the outfan of reference voltage circuit (b31), described every It is coupled to PWM chip (b1) from the outfan of circuit (b32)；

Described reference voltage circuit (b31) includes stabilivolt A1, and this stabilivolt A1 has first end, the second end and control end, institute State the input that first end is coupled to isolation circuit (b32), and be coupled to the defeated of mains transformer (b2) after being also coupled to resistance Go out end, the second end ground connection, control end is coupled to the outfan of mains transformer (b2) after being coupled with resistance, after being also coupled to resistance Ground connection, and it is coupled to first end after being also coupled to a parallel with one another resistance and an electric capacity, described isolation circuit (b32) bag Include power circuit (b321), this power circuit (b321) be coupled to PWM chip (b1) and mains transformer (b2) outfan it Between so as to PWM chip (b1) power supply, this power circuit (b321) includes diode D7, and the anode of this diode D7 is coupled to power supply The outfan of transformator (b2), negative electrode is coupled to PWM chip (b1)；Wherein, negative electrode is coupled to optocoupler after being also coupled to resistance and continues The outfan of electrical equipment U2；Filter circuit (b3211), this filter circuit (b3211) includes filter capacitor C26 and filter capacitor C24, Described filter capacitor C26 and filter capacitor C24 is parallel with one another, and is connected in parallel between the negative electrode of diode D7 and PWM chip (b1)； Described isolation circuit (b32) also includes light coupling relay U2, and this light coupling relay U2 has input and outfan, described optocoupler The input of relay U2 is coupled to the outfan of reference voltage circuit (b31), and outfan is coupled to PWM chip (b1), wherein, Outfan is further coupled to power circuit (b321).

6. electric sewer controller according to claim 5 it is characterised in that：Described PWM chip (b1) for model is The power supply chip of VIPER12, this power supply chip has output pin, power pins and feedback pin, and described power pins couple In the negative electrode of diode D7, output pin is coupled to the input of mains transformer (b2), and feedback pin is coupled to optocoupler relay The outfan of device U2, model EE16 of described mains transformer (b2), model TL431 of described stabilivolt A1, described light Model EL357C of coupling relay U2, model LL4148 of described diode D7, filter capacitor C26 is 104 ceramic disc capacitors, The capacity of filter capacitor C24 is 22uF/50V.

7. the electric sewer controller according to claim 1 or 2 or 3 or 4 it is characterised in that：Described governor circuit C () includes：

Main control chip (c2), is coupled to H-bridge circuit (d), in order to send drive signal to H-bridge circuit (d) so that H-bridge circuit (d) Motor rotates, and this main control chip (c2) has multiple I/O mouths as signal input output end；

H bridge current detection circuit (c1), is coupled to main control chip (c2), is further coupled to H-bridge circuit (d), in order to detect H-bridge circuit (d) electric current, and this current signal is input in main control chip (c2), described H bridge current detection circuit (c1) includes：

First current sense resistor R11, one end of this first current sense resistor R11 is coupled to main control chip (c2), the other end It is coupled to H-bridge circuit (d)；

Second current sense resistor R31, one end of this second current sense resistor R31 is coupled to the first current sense resistor R11 It is coupled to one end of main control chip (c2), its other end is coupled to power supply；

One end of current detecting electric capacity C6, this current detecting electric capacity C6 is coupled to the first current sense resistor R11 and is coupled to master control One end of chip (c2), the other end is grounded.

8. the electric sewer controller according to claim 1 or 2 or 3 or 4 it is characterised in that：Described H-bridge circuit (d) Including：

U phase drive circuit (d1), V phase drive circuit (d2) and W phase drive circuit (d3), described U phase drive circuit (d1), V phase Drive circuit (d2) and W phase drive circuit (d3) all include：

Positive signal amplifying circuit (d4), this positive signal amplifying circuit (d4) has input and outfan, wherein input It is coupled to governor circuit (c), outfan output cathode drive signal；

Positive pole IGBT manage (d6), this positive pole IGBT pipe (d6) there is first end, the second end and control end, described control end couple with The outfan of positive signal amplifying circuit (d4), to receive positive pole drive signal, first end is coupled to external dc power, and second End is coupled to three phase electric machine；

Negative signal amplifying circuit (d5), this negative signal amplifying circuit (d5) has input and outfan, wherein input It is coupled to governor circuit (c), outfan output negative pole drive signal；

Negative pole IGBT manage (d7), this negative pole IGBT pipe (d7) there is first end, the second end and control end, described control end couple with The outfan of negative signal amplifying circuit (d5), to receive negative pole drive signal, first end is coupled to three phase electric machine, the second termination Ground.

9. electric sewer controller according to claim 8 it is characterised in that：Described positive signal amplifying circuit (d4) Including：

Detection part (d41), is coupled to power supply and is further coupled to governor circuit (c), power supply signal is converted into voltage signal defeated Enter in governor circuit (c), this detection part (d41) includes diode D14, the anode of this diode D14 is coupled to power supply, cloudy Pole is coupled to governor circuit (c) after being coupled with the electric capacity C20 being serially connected and resistance R27；

Positive pole amplifier section (d42), this positive pole amplifier section (d42) has input and outfan, and its input is coupled to master Control circuit (c), outfan is coupled to the control end of positive pole IGBT pipe (d6), just to input after amplification to positive pole IGBT pipe (d6) Pole drive signal, wherein positive pole amplifier section (d42) include：

Positive pole first amplifying triode (d421), the colelctor electrode of this positive pole first amplifying triode (d421) is coupled with coupling after resistance It is connected to the negative electrode of diode D14, emitter stage is coupled with and is grounded after resistance, and base stage is coupled to governor circuit (c), wherein, positive pole the The base stage of one amplifying triode (d421) is coupled to its emitter stage after being also coupled to resistance；

Positive pole second amplifying triode (d422), the base stage of this positive pole second amplifying triode (d422) is coupled to positive pole first and puts The colelctor electrode of big audion (d421), the emitter stage of described positive pole second amplifying triode (d422) is coupled to diode D14's Negative electrode, colelctor electrode be coupled to after being coupled with resistance positive pole IGBT pipe second end of (d6) and negative pole IGBT pipe (d7) first end it Between；

Positive pole the 3rd amplifying triode (d423), the base stage of this positive pole the 3rd amplifying triode (d423) is coupled to positive pole second and puts The colelctor electrode of big audion, the emitter stage of described positive pole the 3rd amplifying triode (d423) is coupled to positive pole IGBT's pipe (d6) Control end, colelctor electrode is coupled between positive pole IGBT pipe second end of (d6) and the first end of negative pole IGBT pipe (d7), described just The base stage of pole the 3rd amplifying triode (d423) is coupled to its emitter stage after being also coupled to diode D17, described diode D17's Anode is coupled with the base stage of positive pole the 3rd amplifying triode (d423), and negative electrode amplifies three with positive pole the 3rd after being coupled with resistance R36 The emitter stage of pole pipe (d423) couples；

Described negative signal amplifying circuit (d5) includes：

Negative pole amplifier section (d51), this negative pole amplifier section (d51) has input and outfan, and its input is coupled to master Control circuit (dc), outfan is coupled to the control end of negative pole IGBT pipe (d7), after amplifying to negative pole IGBT pipe (d7) input Negative pole drive signal, this negative pole amplifier section (d51) includes：

Negative pole first amplifying triode (d521), the colelctor electrode of this negative pole first amplifying triode (d521) is coupled with coupling after resistance It is connected to power supply, emitter stage is grounded after being coupled with resistance, and base stage is coupled to governor circuit (c), wherein, negative pole first amplifying triode (d521) base stage is coupled to its emitter stage after being also coupled to resistance；

Negative pole second amplifying triode (d522), the base stage of this negative pole second amplifying triode (d522) is coupled to negative pole first and puts The colelctor electrode of big audion (d521), the emitter stage of described negative pole second amplifying triode (d522) is coupled to diode power source, Colelctor electrode is grounded after being coupled with resistance；

Negative pole the 3rd amplifying triode (d523), the base stage of this negative pole the 3rd amplifying triode (d523) is coupled to negative pole second and puts The colelctor electrode of big audion, the emitter stage of described negative pole the 3rd amplifying triode (d523) is coupled to the control of negative pole IGBT pipe (7) End processed, grounded collector, the base stage of described negative pole the 3rd amplifying triode (d523) is coupled to it after being also coupled to diode D20 Emitter stage, the anode of described diode D20 is coupled with the base stage of negative pole the 3rd amplifying triode (d523), and negative electrode is coupled with resistance Couple with the emitter stage of negative pole the 3rd amplifying triode (d523) after R48.

10. electric sewer controller according to claim 9 it is characterised in that：Described positive pole IGBT manages (d6) and negative The model of pole IGBT pipe (d7) is SGT15N60NPFDF, model US1M of described diode D14, the capacitance of electric capacity C20 For 10Uf/25V, the resistance of resistance R27 is 100K, the model 13001 of described positive pole first amplifying triode (d421), positive pole The model of the second amplifying triode (d422) and positive pole the 3rd amplifying triode (d423) is 8550, described diode D17's Model 1N4148WS, the resistance of resistance R36 is 200 Ω, the model 8050 of described negative pole first amplifying triode (d521), The model of negative pole second amplifying triode (d522) and negative pole the 3rd amplifying triode (d523) is 8550, diode D20's Model 1N4148WS, the resistance of resistance R48 is 200 Ω.