CN203691365U - Self-powered circuit of power semiconductor switch driving circuit - Google Patents
Self-powered circuit of power semiconductor switch driving circuit Download PDFInfo
- Publication number
- CN203691365U CN203691365U CN201320797807.3U CN201320797807U CN203691365U CN 203691365 U CN203691365 U CN 203691365U CN 201320797807 U CN201320797807 U CN 201320797807U CN 203691365 U CN203691365 U CN 203691365U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- power semiconductor
- semiconductor switch
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model belongs to the field of an electrical driving circuit, and aims to provide a self-powered circuit of a power semiconductor switch driving circuit. The self power supply circuit of the power semiconductor switch driving circuit comprises the components of: a power semiconductor switch, a driving circuit thereof, a voltage-reducing rectifying circuit, a battery charging and discharging circuit, a filtering capacitor and an isolation conversion voltage stabilizing circuit. The voltage-reducing rectifying circuit is connected with two ends of the main circuit of the power semiconductor switch. The voltage-reducing rectifying circuit, the battery charging and discharging circuit, the isolation conversion voltage stabilizing circuit and the filtering capacitor are connected successively. Module isolation is adopted for the isolation conversion voltage stabilizing circuit. The anode and the cathode of the driving circuit are respectively connected with anode and the cathode of the filtering capacitor. The cathode of the driving circuit is connected with the cathode of the power semiconductor switch in a co-ground connection manner. The self power supply circuit of the power semiconductor switch driving circuit is beneficial in that: no electromagnetic component is required for providing a driving power supply; high isolation capability is realized; voltage which is output from the voltage-reducing rectifying circuit is used for powering and simultaneously for charging the battery; a standby battery can perform emergency power supply for ensuring safe stoppage of the equipment; and an optical fiber transmits pulse signals in one direction and small line interference is realized.
Description
Technical field
The utility model belongs to electric driver circuit field, is specifically related to a kind of self-powered circuit of power semiconductor switch drive circuit.
Background technology
The energy-saving application of power electronic equipment is more and more wider, and capacity is increasing, and therefore electric pressure is more and more higher.Such as powerful induction heating power, medium-high voltage frequency converter, high voltage direct current power transmission and transformation etc.Because power semiconductor switch works in high-speed switch state, the quick variation of high-voltage great-current, is the main interference source of power electronic equipment.Guarantee the stable operation of equipment, the drive circuit of device is very crucial, and the operating voltage of drive circuit is lower, is again the interface channel of high pressure main circuit and controller simultaneously.Easily be subject to forceful electric power and disturb, also easily high pressure is disturbed and introduces light-current system.
The power supply technique route of traditional drive circuit has two kinds: one is that pulse transformer drives, and transmits pulse and driving-energy by pulse transformer simultaneously; The 2nd, driving power transformer transmits energy and photoisolator transmits pulse signal.Two kinds of type of drive have all adopted electromagnetic conversion element (pulse transformer and driving power transformer), therefore easily cause the two-way transmission disturbed, and isolating power are also limited, is unfavorable for improving operating voltage.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, and a kind of self-powered circuit of power semiconductor switch drive circuit is provided.
For technical solution problem, solution of the present utility model is:
A kind of self-powered circuit of power semiconductor switch drive circuit is provided, comprises power semiconductor switch and drive circuit thereof; Also comprise:
Step-down rectifying circuit, for by voltage dividing potential drop, the rectification at power semiconductor switch main circuit two ends, and provides voltage to the battery charging and discharging circuit of rear class and isolation switch voltage-stabilizing circuit;
Battery charging and discharging circuit, supplies with isolation switch voltage-stabilizing circuit for the voltage under nominal situation, step-down rectifying circuit being obtained, and gives battery trickle charge simultaneously, and powers to isolation switch voltage-stabilizing circuit in starting and emergency rating by battery discharge;
A filter capacitor;
Isolation switch voltage-stabilizing circuit, for the fluctuation voltage obtaining is isolated, stablized, and output voltage is to described filter capacitor, by the backward drive circuitry of its filtering;
Described step-down rectifying circuit is connected to the two ends of power semiconductor switch main circuit, and step-down rectifying circuit, battery charging and discharging circuit, isolation switch voltage-stabilizing circuit, filter capacitor connect successively, and isolation switch voltage-stabilizing circuit adopts module isolation; The both positive and negative polarity of drive circuit is connected to respectively the both positive and negative polarity of filter capacitor, and drive circuit negative pole is connected altogether with power semiconductor switch negative pole.
Improve as one, described power semiconductor switch is thyristor, IGBT, IGCT or MOSFET.
Improve as one, be connected to drive circuit as the control system of pulse signal source by optical fiber, to realize the input of pulse signal.
Improve as one, described step-down rectifying circuit comprises a resistance, a rectifier and an electrochemical capacitor; Rectifier one end is connected to the positive pole of power semiconductor switch by resistance, the rectifier other end is directly connected to the negative pole of power semiconductor switch; Electrochemical capacitor is connected to the two ends of rectifier, and as the output of step-down rectifying circuit.
Improve as one, described battery charging and discharging circuit comprises three resistance, a diode, a battery and a three-terminal voltage-stabilizing pipe; Wherein, resistance and three-terminal voltage-stabilizing pipe string joint group synthesize A combination, diode and battery strings joint group and synthesize B combination, and A combination is joined with two outputs of step-down rectifying circuit respectively with the two ends of B combination; Another two resistance are the first resistance and the second resistance, both tandem compounds, and the other end of the first resistance is connected to respectively A combination mid point and B combines mid point, and the other end of the second resistance is also connected to the negative output terminal of step-down rectifying circuit; The two ends of B combination are as the output of battery charging and discharging circuit.
Improve as one, described isolation switch voltage-stabilizing circuit adopts switch power module.
Improve as one, the gate drive circuit that described drive circuit is power semiconductor switch, the gate pole of power semiconductor switch is connected with drive circuit, and the negative pole of drive circuit is connected altogether with the negative pole of power semiconductor switch.
The invention also provides a kind of self-powered method of the power semiconductor switch drive circuit based on aforementioned circuit, specifically comprise: step-down rectifying circuit need to carry out dividing potential drop, rectification processing by the voltage at power semiconductor switch main circuit two ends according to power supply, supply with battery charging and discharging circuit and isolation switch voltage-stabilizing circuit; The voltage that battery charging and discharging circuit obtains step-down rectifying circuit under nominal situation is supplied with isolation switch voltage-stabilizing circuit, gives battery trickle charge simultaneously, and powers to isolation switch voltage-stabilizing circuit in starting and emergency rating by battery discharge; The stable output of fluctuation voltage isolation that isolation switch voltage-stabilizing circuit obtains step-down rectifying circuit, its output voltage by filter capacitor filtering after, offer drive circuit as its working power, thereby realize the self-powered of power semiconductor switch drive circuit; Wherein,
Described battery charging and discharging circuit comprises three resistance, a diode, a battery and a three-terminal voltage-stabilizing pipe; Wherein, resistance and three-terminal voltage-stabilizing pipe string joint group synthesize A combination, diode and battery strings joint group and synthesize B combination, and A combination is joined with two outputs of step-down rectifying circuit respectively with the two ends of B combination; Another two resistance are the first resistance and the second resistance, both tandem compounds, and the other end of the first resistance is connected to respectively A combination mid point and B combines mid point, and the other end of the second resistance is also connected to the negative output terminal of step-down rectifying circuit; The two ends of B combination are as the output of battery charging and discharging circuit; For preventing that battery from continuing charging and causing over-charging of battery to produce heating, set the maximum safe voltage Vomax of battery charging by three-terminal voltage-stabilizing pipe, the reference voltage of supposing three-terminal voltage-stabilizing pipe is Vref,
Vomax=Vref×（R5+R6）/R6
In this formula, R5 is the resistance of the second resistance, and R6 is the resistance of the first resistance.
Compared with prior art, the beneficial effects of the utility model are:
1, self-powered drive circuit works power supply is taken from the main circuit two ends of power electronic device self, provides driving power without electromagnetic component, reduces coupling and disturbs, and isolating power is strong;
2, battery charging and discharging circuit can meet under nominal situation, and the power supply on one side of the voltage of step-down rectifying circuit output, charges the battery on one side;
3,, under case of emergency, backup battery energy emergency service, guarantees the safe shutdown of equipment; Insulating power supply module realizes out-put supply and is connected altogether with device.
4, adopt optical fiber to transmit pulse signal, one-way transmission pulse signal, sends to drive circuit by control system, and line-hit is little.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is a kind of implementing circuit figure of the present utility model;
Reference numeral: drive circuit 1, power electronic device 2, step-down rectifying circuit 3, battery charging and discharging circuit 4, isolation switch voltage-stabilizing circuit 5 and electrochemical capacitor 6, filter capacitor 7.
Embodiment
Following embodiment can make the technical staff of this professional skill field more fully understand the utility model, but limits never in any form the utility model.
The self-powered circuit of the power semiconductor switch drive circuit in Fig. 1, comprises power semiconductor switch 2 and drive circuit 1 thereof; Also comprise step-down rectifying circuit 3, battery charging and discharging circuit 4, isolation switch voltage-stabilizing circuit 6 and filter capacitor 7.Step-down rectifying circuit 3 is connected to the two ends of power semiconductor switch 2 main circuits, and step-down rectifying circuit 3, battery charging and discharging circuit 4, isolation switch voltage-stabilizing circuit 6, filter capacitor 7 connect successively, and isolation switch voltage-stabilizing circuit 6 adopts module isolation; The both positive and negative polarity of drive circuit 1 is connected to respectively the both positive and negative polarity of filter capacitor 7, and drive circuit 1 negative pole is connected altogether with power semiconductor switch 2 negative poles.Power semiconductor switch 2 can be thyristor, IGBT, IGCT or MOSFET.Control system as pulse signal source is connected to drive circuit 1 by optical fiber, to realize the input of pulse signal.
Fig. 2 is a concrete implementing circuit figure of the present utility model.In the present embodiment, each circuit theory is identical with embodiment 1, and wherein, that power semiconductor switch 2 is selected is thyristor TH1.
Step-down rectifying circuit 3 comprises resistance R 3, rectifier B1 and electrochemical capacitor E1; Rectifier B1 one end is connected to the positive pole of thyristor TH1 by resistance R 3, the rectifier B1 other end is directly connected to the negative pole of thyristor TH1; Electrochemical capacitor E1 is connected to the two ends of rectifier B1, and as the output of step-down rectifying circuit 1.
Battery charging and discharging circuit 4 is by resistance R 4, the first resistance R 5, the second resistance R 6, diode D1, battery 5 and three-terminal voltage-stabilizing pipe TL432 composition; Wherein resistance R 4 becomes A combination with three-terminal voltage-stabilizing pipe TL432 tandem compound, diode D1 becomes B combination with battery 5 tandem compounds, and A combination and B combine two ends join with two outputs of step-down rectifying circuit 3 respectively; The first resistance R 5, the second resistance R 6 tandem compounds, the other end of the first resistance R 5 is connected to respectively A combination mid point and B combination mid point, and the other end of the second resistance R 6 is also connected to the negative output terminal of step-down rectifying circuit 3; The two ends of B combination are as the output of battery charging and discharging circuit 4.Under nominal situation, the voltage of being exported by step-down rectifying circuit 3 charges to battery 5, and isolation switch voltage-stabilizing circuit 6 is given in power supply simultaneously; In the time that battery 5 has charged, stop battery 5 to continue charging by three-terminal voltage-stabilizing pipe TL431; When starting or the emergency rating of step-down rectifying circuit 3 faults, battery 5 discharges by diode D1, gives the power supply of isolation switch voltage-stabilizing circuit.
Drive circuit 1 is the gate drive circuit of power semiconductor switch 2, and the gate pole of power semiconductor switch 2 is connected with drive circuit 1, and the negative pole of drive circuit 1 is connected altogether with the negative pole of power semiconductor switch 2.
Isolation switch voltage-stabilizing circuit 6 adopts switch power module.Adopting the object of module isolation is that out-put supply VCC is connected altogether with thyristor TH1.
The self-powered method of the power semiconductor switch drive circuit based on described circuit, specifically comprise: step-down rectifying circuit 1 need to carry out dividing potential drop, rectification processing by the voltage at thyristor TH1 main circuit two ends according to power supply, supply with battery charging and discharging circuit 4 and isolation switch voltage-stabilizing circuit 6; The voltage that battery charging and discharging circuit 4 obtains step-down rectifying circuit 3 under nominal situation is supplied with isolation switch voltage-stabilizing circuit 6, gives battery 5 trickle charges simultaneously.At the emergency rating of starting or step-down rectifying circuit 3 faults, discharge and power to isolation switch voltage-stabilizing circuit 6 by battery 5; Isolation switch voltage-stabilizing circuit 6 fluctuation voltage that step-down rectifying circuit 3 is obtained or the stable output of cell voltage isolation, its output voltage by filter capacitor 7 filtering after, offer drive circuit 1 as its working power, thereby realize the self-powered of drive circuit 1; Wherein,
For preventing that battery from continuing charging and battery being produced to the impact of generating heat, according to the performance of battery performance and three-terminal voltage-stabilizing pipe TL431, set the maximum safe voltage Vomax of battery charging by three-terminal voltage-stabilizing pipe, the reference voltage of supposing three-terminal voltage-stabilizing pipe is Vref,
Vomax=Vref×（R5+R6）/R6
In this formula, R5 is the resistance of the first resistance, and R6 is the resistance of the second resistance.
Therefore, actual range of the present utility model not only comprises the disclosed embodiments, is also included under claims and implements or to carry out all equivalents of the present utility model.
Claims (7)
1. a self-powered circuit for power semiconductor switch drive circuit, comprises power semiconductor switch and drive circuit thereof; It is characterized in that, also comprise:
Step-down rectifying circuit, for by voltage dividing potential drop, the rectification at power semiconductor switch main circuit two ends, and provides voltage to the battery charging and discharging circuit of rear class and isolation switch voltage-stabilizing circuit;
Battery charging and discharging circuit, supplies with isolation switch voltage-stabilizing circuit for the voltage under nominal situation, step-down rectifying circuit being obtained, and gives battery trickle charge simultaneously, and powers to isolation switch voltage-stabilizing circuit in starting and emergency rating by battery discharge;
A filter capacitor;
Isolation switch voltage-stabilizing circuit, for the fluctuation voltage obtaining is isolated, stablized, and output voltage is to described filter capacitor, by the backward drive circuitry of its filtering;
Described step-down rectifying circuit is connected to the two ends of power semiconductor switch main circuit, and step-down rectifying circuit, battery charging and discharging circuit, isolation switch voltage-stabilizing circuit, filter capacitor connect successively, and isolation switch voltage-stabilizing circuit adopts module isolation; The both positive and negative polarity of drive circuit is connected to respectively the both positive and negative polarity of filter capacitor, and drive circuit negative pole is connected altogether with power semiconductor switch negative pole.
2. circuit according to claim 1, is characterized in that, described power semiconductor switch is thyristor, IGBT, IGCT or MOSFET.
3. circuit according to claim 1, is characterized in that, is connected to drive circuit as the control system of pulse signal source by optical fiber, to realize the input of pulse signal.
4. circuit according to claim 1, is characterized in that, described step-down rectifying circuit comprises a resistance, a rectifier and an electrochemical capacitor; Rectifier one end is connected to the positive pole of power semiconductor switch by resistance, the rectifier other end is directly connected to the negative pole of power semiconductor switch; Electrochemical capacitor is connected to the two ends of rectifier, and as the output of step-down rectifying circuit.
5. circuit according to claim 1, is characterized in that, described battery charging and discharging circuit comprises three resistance, a diode, a battery and a three-terminal voltage-stabilizing pipe; Wherein, resistance and three-terminal voltage-stabilizing pipe string joint group synthesize A combination, diode and battery strings joint group and synthesize B combination, and A combination is joined with two outputs of step-down rectifying circuit respectively with the two ends of B combination; Another two resistance are the first resistance and the second resistance, both tandem compounds, and the other end of the first resistance is connected to respectively A combination mid point and B combines mid point, and the other end of the second resistance is also connected to the negative output terminal of step-down rectifying circuit; The two ends of B combination are as the output of battery charging and discharging circuit.
6. circuit according to claim 1, is characterized in that, described isolation switch voltage-stabilizing circuit adopts switch power module.
7. circuit according to claim 1, it is characterized in that, described drive circuit is the gate drive circuit of power semiconductor switch, and the gate pole of power semiconductor switch is connected with drive circuit, and the negative pole of drive circuit is connected altogether with the negative pole of power semiconductor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797807.3U CN203691365U (en) | 2013-12-05 | 2013-12-05 | Self-powered circuit of power semiconductor switch driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797807.3U CN203691365U (en) | 2013-12-05 | 2013-12-05 | Self-powered circuit of power semiconductor switch driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691365U true CN203691365U (en) | 2014-07-02 |
Family
ID=51013215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320797807.3U Withdrawn - After Issue CN203691365U (en) | 2013-12-05 | 2013-12-05 | Self-powered circuit of power semiconductor switch driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691365U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618530A (en) * | 2013-12-05 | 2014-03-05 | 杭州四达电炉成套设备有限公司 | Self-powered circuit and self-powering method of drive circuit of power semiconductor switch |
| CN106848444A (en) * | 2016-11-25 | 2017-06-13 | 惠州市蓝微新源技术有限公司 | A kind of battery pack voltage reduction method and reduction voltage circuit |
| CN109900519A (en) * | 2019-03-20 | 2019-06-18 | 中国地质科学院地质研究所 | A kind of deep fluid sampler based on electronic digital display trigger device |
-
2013
- 2013-12-05 CN CN201320797807.3U patent/CN203691365U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618530A (en) * | 2013-12-05 | 2014-03-05 | 杭州四达电炉成套设备有限公司 | Self-powered circuit and self-powering method of drive circuit of power semiconductor switch |
| CN103618530B (en) * | 2013-12-05 | 2016-06-29 | 杭州四达电炉成套设备有限公司 | The self-powered circuit of power semiconductor switch drive circuit and method |
| CN106848444A (en) * | 2016-11-25 | 2017-06-13 | 惠州市蓝微新源技术有限公司 | A kind of battery pack voltage reduction method and reduction voltage circuit |
| CN109900519A (en) * | 2019-03-20 | 2019-06-18 | 中国地质科学院地质研究所 | A kind of deep fluid sampler based on electronic digital display trigger device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117154907A (en) | Three-port charger with inversion function | |
| CN203377785U (en) | Charging and discharging type DC-DC conversion circuit and new energy power generation system | |
| CN102255489A (en) | High-voltage start-up circuit for switching power supply converter | |
| CN103780086B (en) | Based on the dual output bus type high-gain converter of coupling inductance times laminated structure | |
| CN103384115A (en) | Charging and discharging type direct current (DC)-DC conversion circuit and new energy power generation system | |
| CN103633839A (en) | Improved Z-source boosting DC (direct current)-DC converter | |
| CN104300769B (en) | A kind of isolated form H bridge driving devices | |
| CN105432006A (en) | Switching element driving power supply circuit | |
| CN204103532U (en) | A kind of two-way charger | |
| CN104348202A (en) | Charging control circuit and method and electronic device | |
| CN203691365U (en) | Self-powered circuit of power semiconductor switch driving circuit | |
| CN102570831B (en) | Isolated direct current (DC) bidirectional converter | |
| CN202142981U (en) | Circuit for AC/DC switch power supply converter high-voltage starting | |
| CN103647448A (en) | Integrated step-down-flyback type high power factor constant current circuit and device | |
| CN102969783B (en) | Direct current uninterruptible power supply | |
| CN103618530A (en) | Self-powered circuit and self-powering method of drive circuit of power semiconductor switch | |
| EP3249771A1 (en) | Uninterrupted power supply and control method thereof | |
| CN103337841B (en) | Bidirectional current limiter based on two-way BUCK converter and bidirectional current limiting method | |
| CN102170232B (en) | Self-driven active buffer and flyback switching mode power supply | |
| CN204290428U (en) | A kind of integrate motor drives and battery charging function module | |
| CN104426377A (en) | Wide-input voltage flyback-type switch power supply applicable to drive of direct-current motor | |
| US20150115713A1 (en) | Power supply apparatus | |
| CN104049559A (en) | Load control circuit and device | |
| CN104682709A (en) | High-frequency voltage boosting circuit | |
| CN204721070U (en) | Electric motor car charger for mobile phone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |