CN205725512U - A kind of H-bridge circuit of electric sewer - Google Patents
A kind of H-bridge circuit of electric sewer Download PDFInfo
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- CN205725512U CN205725512U CN201620699547.XU CN201620699547U CN205725512U CN 205725512 U CN205725512 U CN 205725512U CN 201620699547 U CN201620699547 U CN 201620699547U CN 205725512 U CN205725512 U CN 205725512U
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Abstract
The utility model discloses the H-bridge circuit of a kind of electric sewer, including 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 include: positive signal amplifying circuit, this positive signal amplifying circuit has input and output, wherein input is coupled to the control chip of driver, and output output cathode drives signal；Negative signal amplifying circuit, this negative signal amplifying circuit has input and output, and wherein input is coupled to the control chip of driver, and output output negative pole drives signal.The H-bridge circuit of electric sewer of the present utility model, setting by positive signal amplifying circuit and negative signal amplifying circuit, just can effectively align negative signal to be amplified, thus avoid the problem that cannot drive IGBT pipe that prior art chips pin output voltage causes not.
Description
Technical field
The utility model relates to a kind of motor-drive circuit, the H bridge electricity of more particularly to a kind of electric sewer
Road.
Background technology
Application very extensive in weaving and clothes field for the sewing machine, when sewing clothes, occupies very heavy
The status wanted, by the use of sewing machine, can be greatly promoted the sewing efficiency of clothes, promotes work task efficiency, simultaneously
Also the darning work for family saves the substantial amounts of time.
Existing sewing machine mainly divides foot-propelled and electronic two kinds, and foot-propelled is by arranging a foot-propelled pedal below, then
Arrange a runner in the side of foot-propelled pedal, foot-propelled pedal drives runner by linkage, then on runner and sewing machine
Rotation 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, two come in use between long after, the pin of people will be very tired, so compared to electric sewer, foot-propelled wants difficulty to use
Many, and existing electric sewer is only merely and original foot-propelled lead agency is revised as driven by motor, although so keeping away
Having exempted from the problem that volume is big and pin is tired of foot-propelled sewing machine, existing electric sewer is in order to well give internal drive
Each chip and motor power, thus need often in driver, to arrange a dc source and Switching Power Supply, in work
In order to preferably sew in industry sewing machine, thus motor typically all uses three phase electric machine, thus if it is desired to drive
If three phase electric machine rotates, it is necessary to add a H-bridge circuit in driver, and existing H-bridge circuit is all by arranging 3
Individual metal-oxide-semiconductor realizes the offer three-phase current of the three-phase current that threephase switch drives, and inside H-bridge circuit of the prior art all
It is to include six IGBT pipe, realize changing the current direction being supplied to three motors by the break-make controlling six IGBT pipes,
And the control of existing H-bridge circuit is all that directly the IGBT pipe in H-bridge circuit directly inputs control by the control chip of driver
Signal processed realizes, and IGBT pipe is voltage-controlled type original paper, thus the pin voltage of existing conventional die is not enough to drive
Dynamic IGBT pipe, so during electric sewer produces, it is necessary to use special chip driving H-bridge circuit, thus
May result in the lifting of cost.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide and a kind of can effectively reduce cost
The H-bridge circuit of electric sewer.
For achieving the above object, the utility model provides following technical scheme: the H-bridge circuit of a kind of electric sewer,
Including 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 output, and wherein input couples
In the control chip of driver, output output cathode drives signal；
Positive pole IGBT manages, and this positive pole IGBT pipe has the first end, the second end and control end, and described control end couples and positive pole
The output of signal amplification circuit, drives signal to receive positive pole, and the 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 output, and wherein input couples
In the control chip of driver, output output negative pole drives signal；
Negative pole IGBT manages, and this negative pole IGBT pipe has the first end, the second end and control end, and described control end couples and negative pole
The output of signal amplification circuit, drives signal to receive negative pole, and the 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 the control chip of driver, so that power supply signal to be converted into voltage letter
It number is input in the control chip of driver；
Positive pole amplifier section, this positive pole amplifier section has input and output, and its input is coupled to driver
Control chip, output is coupled to the control end of positive pole IGBT pipe, drives letter with the positive pole after amplifying to the input of positive pole IGBT pipe
Number.
As further improvement of the utility model, described test section divides and includes:
Diode D14, the anode of this diode D14 is coupled to power supply, and negative electrode is coupled with the electric capacity C20 being serially connected and electricity
It is coupled to the control chip of driver after resistance R27.
As further improvement of the utility model, described positive pole amplifier section includes:
Positive pole the first amplifying triode, the colelctor electrode of this positive pole the first amplifying triode is coupled to two poles after being coupled with resistance
The negative electrode of pipe D14, emitter stage is coupled with ground connection after resistance, and base stage is coupled to the control chip of driver, and wherein, positive pole first is put
The base stage of big triode is coupled to its emitter stage after being also coupled to resistance；
Positive pole the second amplifying triode, the base stage of this positive pole the second amplifying triode is coupled to positive pole the first amplifying triode
Colelctor electrode, the emitter stage of described positive pole the second amplifying triode is coupled to the negative electrode of diode D14, and colelctor electrode is coupled with resistance
After be coupled 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 the 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 couples with the base stage of positive pole the 3rd amplifying triode, negative electrode be coupled with after resistance R36 with positive pole the 3rd amplification
The emitter stage of triode couples.
As further improvement of the utility model, described negative signal amplifying circuit includes:
Negative pole amplifier section, this negative pole amplifier section has input and output, and its input is coupled to driver
Control chip, output is coupled to the control end of negative pole IGBT pipe, drives letter with the negative pole after amplifying to the input of negative pole IGBT pipe
Number.
As further improvement of the utility model, described negative pole amplifier section includes:
Negative pole the first amplifying triode, the colelctor electrode of this negative pole the first amplifying triode is coupled to electricity after being coupled with resistance
Source, emitter stage is coupled with ground connection after resistance, and base stage is coupled to the control chip of driver, wherein, negative pole the first amplifying triode
Base stage be also coupled to resistance after be coupled to its emitter stage；
Negative pole the second amplifying triode, the base stage of this negative pole the second amplifying triode is coupled to negative pole the first amplifying triode
Colelctor electrode, the emitter stage of described negative pole the 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 the 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 after the base stage of negative pole the 3rd amplifying triode has been also coupled to diode D20 and be coupled to its emitter stage, the sun of described diode D20
Pole couples 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 and negative pole IGBT pipe is
SGT15N60NPFDF, the model of described diode D14 is US1M, and the capacitance of electric capacity C20 is 10Uf/25V, the resistance of resistance R27
For 100K, the model of described positive pole the first amplifying triode is 13001, and positive pole the second amplifying triode and positive pole the 3rd amplify three
The model of pole pipe is 8550, and the model of described diode D17 is 1N4148WS, and the resistance of resistance R36 is 200 Ω.
As further improvement of the utility model, the model of described negative pole the first amplifying triode is 8050, negative pole
The model of two amplifying triodes and negative pole the 3rd amplifying triode is 8550, and the model of diode D20 is 1N4148WS.
The beneficial effects of the utility model, just can be had by U phase drive circuit, V phase drive circuit and W phase drive circuit
Giving of effect drives motor to provide three-phase current, so just can be good at driving three phase electric machine running, and passes through positive signal
The setting of amplifying circuit, it is possible to the positive pole of each phase input is driven signal to be amplified by effective realization, so just permissible
Effectively avoiding the problem that cannot drive IGBT pipe causing not due to the output voltage of chip pin, negative signal amplifies
The effect of circuit is identical with the effect of positive pole amplifying circuit, so in the production process of electric sewer, it is possible to use general
Logical control chip, greatly reduces the production cost of electric sewer.
Brief description
Fig. 1 is the circuit diagram of the H-bridge circuit of electric sewer of the present utility model.
Detailed description of the invention
Below in conjunction with the embodiment given by accompanying drawing, the utility model is described in further detail.
Shown in reference Fig. 1, the H-bridge circuit of a kind of electric sewer of the present embodiment, it is characterised in that: include that U phase drives
Circuit the 1st, V phase drive circuit 2 and W phase drive circuit 3, described U phase drive circuit the 1st, V phase drive circuit 2 and W phase drive circuit 3
All include:
Positive signal amplifying circuit 4, this positive signal amplifying circuit 4 has input and output, wherein input coupling
Being connected to the control chip of driver, output output cathode drives signal；
Positive pole IGBT pipe 6, this positive pole IGBT pipe 6 have the first end, the second end and control end, described control end couple with just
The output of pole signal amplification circuit 4, drives signal to receive positive pole, and the first end is coupled to external dc power, the second end coupling
It is connected to three phase electric machine；
Negative signal amplifying circuit 5, this negative signal amplifying circuit 5 has input and output, wherein input coupling
Being connected to the control chip of driver, output output negative pole drives signal；
Negative pole IGBT pipe 7, this negative pole IGBT pipe 7 has the first end, the second end and control end, and described control end couples and bears
The output of pole signal amplification circuit 5, drives signal to receive negative pole, and the first end is coupled to three phase electric machine, the second end ground connection,
During H-bridge circuit work, first control chip will send driving signal to U phase drive circuit the 1st, V phase drive circuit 2 and
W phase drive circuit 3, with drive rise in positive pole IGBT pipe 6 and negative pole IGBT pipe 7, driving signal come in when, positive pole
Drive signal first can enter in the positive signal amplifying circuit 4 in three drive circuits, by positive signal amplify electricity
After the amplification on road 4, positive signal just be enough to drive positive pole IGBT pipe 6, and negative signal working method is identical with positive pole,
Thus just can well realize that the signal that general control chip pin exports also can drive IGBT pipe 6 to work, thus compare
Needing in prior art to use special control chip, its cost is much lower.
As improved a kind of detailed description of the invention, described positive signal amplifying circuit 4 includes:
Detection part 41, is coupled to power supply and is further coupled to the control chip of driver, so that power supply signal is converted into voltage
Signal is input in the control chip of driver；
Positive pole amplifier section 42, this positive pole amplifier section 42 has input and output, and its input is coupled to drive
The control chip of device, output is coupled to the control end of positive pole IGBT pipe 6, with the positive pole after the input amplification of positive pole IGBT pipe 6
Drive signal, by detecting the setting of part 41, it is possible to the electric current being input within H-bridge circuit effectively detected, so
Just three phase electric machine rotating speed now can effectively be detected, and by the setting of positive pole amplifier section 42, it is possible to effectively
Play the effect that signal amplifies, effectively positive signal is amplified.
As improved a kind of detailed description of the invention, described detection part 41 includes:
Diode D14, the anode of this diode D14 is coupled to power supply, and negative electrode is coupled with the electric capacity C20 being serially connected and electricity
It is coupled to the control chip of driver after resistance R27, just can realize preventing electric current backflow telegram in reply source by the setting of diode D14
Problem, just can effectively be played a protective effect by the setting of electric capacity C20 and resistance R27, it is to avoid the electric current of detection
The problem that the control chip that sudden change causes damages.
As improved a kind of detailed description of the invention, described positive pole amplifier section 42 includes:
Positive pole the first amplifying triode 421, the colelctor electrode of this positive pole the first amplifying triode 421 couples after being coupled with resistance
In the negative electrode of diode D14, emitter stage is coupled with ground connection after resistance, and base stage is coupled to the control chip of driver, wherein, positive pole
The base stage of the first amplifying triode 421 is coupled to its emitter stage after being also coupled to resistance；Positive pole the second amplifying triode 422, should
The base stage of positive pole the second amplifying triode 422 is coupled to the colelctor electrode of positive pole the first amplifying triode 421, and described positive pole second is put
The emitter stage of big triode 422 is coupled to the negative electrode of diode D14, and colelctor electrode is coupled to positive pole IGBT pipe 6 after being coupled with resistance
The second end and the first end of negative pole IGBT pipe 7 between；
Positive pole the 3rd amplifying triode 423, the base stage of this positive pole the 3rd amplifying triode 423 is coupled to positive pole second and amplifies
The colelctor electrode of triode, the emitter stage of described positive pole the 3rd amplifying triode 423 is coupled to the control end of positive pole IGBT pipe 6, collection
Electrode is coupled between the second end of positive pole IGBT pipe 6 and the first end of negative pole IGBT pipe 7, described positive pole the 3rd amplifying triode
The base stage of 423 is coupled to its emitter stage after being also coupled to diode D17, the anode of described diode D17 amplifies with positive pole the 3rd
The base stage of triode 423 couples, and negative electrode couples with the emitter stage of positive pole the 3rd amplifying triode 423, by just after having resistance R36
The setting of pole the first amplifying triode the 421st, positive pole the second amplifying triode 422 and positive pole the 3rd amplifying triode 423, it is possible to
Effectively realize one the three grades effects amplified, so just can effectively ensure that positive signal is amplified to be enough to drive positive pole
IGBT pipe 6, simultaneously because its first end and the second end have been required for voltage when positive pole IGBT pipe 6 cut-offs, thus passes through
The colelctor electrode of positive pole the second amplifying triode 422 is coupled with the second end that resistance is followed by positive pole IGBT pipe 6, just can be effective
Meet this condition.
As improved a kind of detailed description of the invention, described negative signal amplifying circuit 5 includes:
Negative pole amplifier section 52, this negative pole amplifier section 52 has input and output, and its input is coupled to drive
The control chip of device, output is coupled to the control end of negative pole IGBT pipe 7, with the negative pole after the input amplification of negative pole IGBT pipe 7
Drive signal, and by the setting of negative pole amplifier section 52, it is possible to effectively play the effect that a signal amplifies, effectively
Negative signal is amplified, is allowed to coordinate with positive signal, preferably drive negative pole IGBT pipe 7.
As improved a kind of detailed description of the invention, described negative pole amplifier section 52 includes:
Negative pole the first amplifying triode 521, the colelctor electrode of this negative pole the first amplifying triode 521 couples after being coupled with resistance
In power supply, emitter stage is coupled with ground connection after resistance, and base stage is coupled to the control chip of driver, and wherein, negative pole first amplifies three
The base stage of pole pipe 521 is coupled to its emitter stage after being also coupled to resistance；
Negative pole the second amplifying triode 522, the base stage of this negative pole the second amplifying triode 522 is coupled to negative pole first and amplifies
The colelctor electrode of triode 521, the emitter stage of described negative pole the second amplifying triode 522 is coupled to diode power source, colelctor electrode coupling
It is connected to ground connection after resistance；
Negative pole the 3rd amplifying triode 523, the base stage of this negative pole the 3rd amplifying triode 523 is coupled to negative pole second and amplifies
The colelctor electrode of triode, the emitter stage of described negative pole the 3rd amplifying triode 523 is coupled to the control end of negative pole IGBT pipe 7, collection
Electrode is grounded, and the base stage of described negative pole the 3rd amplifying triode 523 is coupled to its emitter stage after being also coupled to diode D20, institute
State the anode of diode D20 and the base stage of negative pole the 3rd amplifying triode 523 couple, negative electrode be coupled with after resistance R48 with negative pole
The emitter stage of the 3rd amplifying triode 523 couples, by negative pole the first amplifying triode the 521st, negative pole the second amplifying triode 522
Setting with negative pole the 3rd amplifying triode 523, it is possible to effectively realize one the three grades effects amplified, so just can have
Imitate ensures that negative signal is amplified to be enough to drive negative pole IGBT pipe 6.
As improved a kind of detailed description of the invention, the model of described positive pole IGBT pipe 6 and negative pole IGBT pipe 7 is
SGT15N60NPFDF, the model of described diode D14 is US1M, and the capacitance of electric capacity C20 is 10Uf/25V, the resistance of resistance R27
For 100K, the model of described positive pole the first amplifying triode 421 is 13001, positive pole the second amplifying triode 422 and positive pole the 3rd
The model of amplifying triode 423 is 8550, and the model of described diode D17 is 1N4148WS, and the resistance of resistance R36 is 200
The IGBT pipe of Ω, SGT15N60NPFDF has good Interruption performance and can well realize cut-offfing driving motor with coming here
Operating, the diode of US1M is with here can be well playing the effect of a drainage, and the capacitance by electric capacity C20 is
10Uf/25V, the resistance of resistance R27 is that the 3.3V that is depressured to of 15V just effectively can be supplied external piloting control chip identification by 100K
, and 8550 and 13001 is existing conventional amplifying triode, using here can be effectively to realize a work amplifying
With, and the 200 Ω resistances cooperations of the diode of 1N4148WS and resistance R36 just can effectively realize that amplification outputs, so
Just can be good at driving positive pole IGBT pipe 6.
As improved a kind of detailed description of the invention, the model of described negative pole the first amplifying triode 521 is 8050, negative pole
The model of the second amplifying triode 522 and negative pole the 3rd amplifying triode 523 is 8550, and the model of diode D20 is
1N4148WS, the resistance of resistance R48 be 200 Ω, the 8050th, 8550 triodes and 1N4148WS diode be existing very common
Device, uses and here with the simple and quick effect effectively realizing that negative pole amplifies, the resistance of resistance R48 can be arranged to 200
Ω, it is possible to one stable driving signal of effective output.
In sum, the H-bridge circuit of electric sewer of the present utility model, by positive signal amplifying circuit 4 and negative pole
The setting of signal amplification circuit 5, it is possible to positive signal and negative signal are amplified by effective realization, so just can be very
Good driving positive pole IGBT pipe 6 and negative pole IGBT pipe 7, avoid the need for using special control chip, electricity greatly reduce
The cost of dynamic sewing machine.
The above is only preferred embodiment 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 the utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, under the premise of without departing from the utility model principle some improvement and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. the H-bridge circuit of an electric sewer, it is characterised in that: include U phase drive circuit (1), V phase drive circuit (2) and W
Phase drive circuit (3), described U phase drive circuit (1), V phase drive circuit (2) and W phase drive circuit (3) all include:
Positive signal amplifying circuit (4), this positive signal amplifying circuit (4) has input and output, wherein input coupling
Being connected to the control chip of driver, output output cathode drives signal；
Positive pole IGBT manages (6), this positive pole IGBT pipe (6) has the first end, the second end and control end, wherein control end couple with just
The output of pole signal amplification circuit (4), drives signal to receive positive pole, and the first end is coupled to external dc power, the second end
It is coupled to three phase electric machine；
Negative signal amplifying circuit (5), this negative signal amplifying circuit (5) has input and output, wherein input coupling
Being connected to the control chip of driver, output output negative pole drives signal；
Negative pole IGBT manages (7), and this negative pole IGBT pipe (7) has the first end, the second end and control end, wherein controls end and couples and bear
The output of pole signal amplification circuit (5), drives signal to receive negative pole, and the first end is coupled to three phase electric machine, the second end ground connection.
2. the H-bridge circuit of electric sewer according to claim 1, it is characterised in that: described positive signal amplifying circuit
(4) include:
Detection part (41), is coupled to power supply and is further coupled to the control chip of driver, so that power supply signal to be converted into voltage letter
It number is input in the control chip of driver；
Positive pole amplifier section (42), this positive pole amplifier section (42) has input and output, and its input is coupled to drive
The control chip of device, output is coupled to the control end of positive pole IGBT pipe (6), after amplifying to positive pole IGBT pipe (6) input
Positive pole drives signal.
3. the H-bridge circuit of electric sewer according to claim 2, it is characterised in that: described detection part (41) includes:
Diode D14, the anode of this diode D14 is coupled to power supply, and negative electrode is coupled with the electric capacity C20 being serially connected and resistance
It is coupled to the control chip of driver after R27.
4. the H-bridge circuit of electric sewer according to claim 3, it is characterised in that: described positive pole amplifier section (42)
Including:
Positive pole the first amplifying triode (421), the colelctor electrode of this positive pole the first amplifying triode (421) couples after being coupled with resistance
In the negative electrode of diode D14, emitter stage is coupled with ground connection after resistance, and base stage is coupled to the control chip of driver, wherein, positive pole
The base stage of the first amplifying triode (421) is coupled to its emitter stage after being also coupled to resistance；
Positive pole the second amplifying triode (422), the base stage of this positive pole the second amplifying triode (422) is coupled to positive pole first and amplifies
The colelctor electrode of triode (421), the emitter stage of described positive pole the second amplifying triode (422) 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 (6) and first end of negative pole IGBT pipe (7)；
Positive pole the 3rd amplifying triode (423), the base stage of this positive pole the 3rd amplifying triode (423) is coupled to positive pole second and amplifies
The colelctor electrode of triode, the emitter stage of described positive pole the 3rd amplifying triode (423) is coupled to the control of positive pole IGBT pipe (6)
End, colelctor electrode is coupled between second end of positive pole IGBT pipe (6) and first end of negative pole IGBT pipe (7), described positive pole the 3rd
The base stage of amplifying triode (423) is coupled to its emitter stage after being also coupled to diode D17, the anode of described diode D17 with
The base stage of positive pole the 3rd amplifying triode (423) couples, negative electrode be coupled with after resistance R36 with positive pole the 3rd amplifying triode
(423) emitter stage couples.
5. the H-bridge circuit of the electric sewer according to claim 1 or 2 or 3 or 4, it is characterised in that: described negative signal
Amplifying circuit (5) includes:
Negative pole amplifier section (52), this negative pole amplifier section (52) has input and output, and its input is coupled to drive
The control chip of device, output is coupled to the control end of negative pole IGBT pipe (7), after amplifying to negative pole IGBT pipe (7) input
Negative pole drives signal.
6. the H-bridge circuit of electric sewer according to claim 5, it is characterised in that: described negative pole amplifier section (52)
Including:
Negative pole the first amplifying triode (521), the colelctor electrode of this negative pole the first amplifying triode (521) couples after being coupled with resistance
In power supply, emitter stage is coupled with ground connection after resistance, and base stage is coupled to the control chip of driver, and wherein, negative pole first amplifies three
The base stage of pole pipe (521) is coupled to its emitter stage after being also coupled to resistance；Negative pole the second amplifying triode (522), this negative pole
The base stage of two amplifying triodes (522) is coupled to the colelctor electrode of negative pole the first amplifying triode (521), and described negative pole second amplifies
The emitter stage of triode (522) is coupled to diode power source, and colelctor electrode is coupled with ground connection after resistance；
Negative pole the 3rd amplifying triode (523), the base stage of this negative pole the 3rd amplifying triode (523) is coupled to negative pole second and amplifies
The colelctor electrode of triode, the emitter stage of described negative pole the 3rd amplifying triode (523) is coupled to the control of negative pole IGBT pipe (7)
End, grounded collector, the base stage of described negative pole the 3rd amplifying triode (523) is coupled to it after being also coupled to diode D20
Emitter-base bandgap grading, the anode of described diode D20 and the base stage of negative pole the 3rd amplifying triode (523) couple, and negative electrode is coupled with resistance R48
Couple with the emitter stage of negative pole the 3rd amplifying triode (523) afterwards.
7. the H-bridge circuit of electric sewer according to claim 4, it is characterised in that: described positive pole IGBT manages (6) and bears
The model of pole IGBT pipe (7) is SGT15N60NPFDF, and the model of described diode D14 is US1M, and the capacitance of electric capacity C20 is
10Uf/25V, the resistance of resistance R27 is 100K, and the model of described positive pole the first amplifying triode (421) is 13001, positive pole
The model of two amplifying triodes (422) and positive pole the 3rd amplifying triode (423) is 8550, the model of described diode D17
For 1N4148WS, the resistance of resistance R36 is 200 Ω.
8. the H-bridge circuit of electric sewer according to claim 6, it is characterised in that: described negative pole first amplifies three poles
The model of pipe (521) is 8050, and the model of negative pole the second amplifying triode (522) and negative pole the 3rd amplifying triode (523) is equal
Being 8550, the model of diode D20 is 1N4148WS, and the resistance of resistance R48 is 200 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699547.XU CN205725512U (en) | 2016-07-01 | 2016-07-01 | A kind of H-bridge circuit of electric sewer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699547.XU CN205725512U (en) | 2016-07-01 | 2016-07-01 | A kind of H-bridge circuit of electric sewer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205725512U true CN205725512U (en) | 2016-11-23 |
Family
ID=57327374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620699547.XU Expired - Fee Related CN205725512U (en) | 2016-07-01 | 2016-07-01 | A kind of H-bridge circuit of electric sewer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205725512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991890A (en) * | 2017-12-29 | 2019-07-09 | 深圳市优必选科技有限公司 | A kind of circuit and robot for preventing steering gear system from discharging |
-
2016
- 2016-07-01 CN CN201620699547.XU patent/CN205725512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991890A (en) * | 2017-12-29 | 2019-07-09 | 深圳市优必选科技有限公司 | A kind of circuit and robot for preventing steering gear system from discharging |
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