CN205430039U - Many level drive device - Google Patents
Many level drive device Download PDFInfo
- Publication number
- CN205430039U CN205430039U CN201520862335.4U CN201520862335U CN205430039U CN 205430039 U CN205430039 U CN 205430039U CN 201520862335 U CN201520862335 U CN 201520862335U CN 205430039 U CN205430039 U CN 205430039U
- Authority
- CN
- China
- Prior art keywords
- circuit
- unit
- igbt
- drive
- isolation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Power Conversion In General (AREA)
- Electronic Switches (AREA)
Abstract
The utility model discloses a many level drive device, the device can include power supply circuit unit, IGBT drive control unit, IGBT drive unit, fault -signal acquisition unit, fault -signal output unit, a serial communication port, the power supply circuit unit and IGBT drive unit respectively with the IGBT drive control unit links to each other, fault -signal acquisition unit's input with IGBT drive unit links to each other, fault -signal acquisition unit's output with fault -signal output unit links to each other, fault -signal output unit's output with the IGBT drive control unit links to each other, through the many level drive device that this application provided, circuit layout is simple reasonable, preparation low cost, the break -make electricity condition when can detection and control producing trouble such as short circuit. Can improve this drive arrangement's stability and reliability.
Description
Technical field
This utility model relates to technical field of driving, particularly to a kind of many electrical level drive apparatus.
Background technology
IGBT (InsulatedGateBipolarTransistor), insulated gate bipolar transistor, the compound full-control type voltage driven type power semiconductor being made up of BJT (double pole triode) and MOS (insulating gate type field effect tube), has advantage of both the high input impedance of MOSFET and the low conduction voltage drop of GTR concurrently.GTR saturation pressure reduces, and current carrying density is big, but drives electric current bigger；MOSFET drives power the least, and switching speed is fast, but conduction voltage drop is big, and current carrying density is little.IGBT combines the advantage of both the above device, drives power little and saturation pressure reduction.It is 600V and the field such as above converter system such as alternating current generator, converter, Switching Power Supply, lighting circuit, Traction Drive that IGBT is highly suitable to be applied for DC voltage.IGBT module is at current DC (unidirectional current)-DC, DC-AC (alternating current) changer is widely used, owing to driving power more than metal-oxide-semiconductor needed for it, so conventional metal-oxide-semiconductor drive circuit may not apply in IGBT driving, and current IGBT drive circuit is frequently with integrated driving mode, for low capacity IGBT, relatively costly, the mode that the power supply of integrated driving is conventional produces negative voltages for two Transformer Winding of use, transformer winding is complicated, driving power supply to need to increase feedback circuit, circuit structure also complicates.When IGBT is short-circuited fault, the short circuit current flowing through IGBT raises along with the rising of gate voltage, and IGBT can bear the time of short trouble then to be reduced along with the rising of gate voltage.Work in the IGBT of many level modes, when it is short-circuited fault, drive circuit can not immediately turn off IGBT, but needs fault-signal is returned to host computer, the unified arrangement of host computer turn off sequential, therefore, compared with two level active patterns, during many level active pattern, IGBT needs to bear longer failure time of short circuit, it means that the risk that IGBT damages because of short trouble substantially increases.
Utility model content
Based on the problems referred to above, this utility model embodiment discloses a kind of many electrical level drive apparatus.
Technical scheme is as follows: this utility model embodiment discloses a kind of many electrical level drive apparatus, and this device includes that power circuit unit, IGBT drive control unit, IGBT driver element, Collection unit, fail signal output unit, it is characterised in that
Described power circuit unit and described IGBT driver element drive control unit to be connected with described IGBT respectively, the input of described Collection unit is connected with described IGBT driver element, the outfan of described Collection unit is connected with described fail signal output unit, and the outfan of described fail signal output unit drives control unit to be connected with described IGBT；
Wherein, described power circuit unit includes DC-isolation power circuit, for producing the DC source of the two-way generating positive and negative voltage of isolation, described DC-isolation power circuit includes soft startup circuit for power supply, controller UC2845 circuit, pulse transformer T1 circuit and power supply output filter circuit；Described IGBT driver element includes that the first drive circuit and the second drive circuit, described first drive circuit and the second drive circuit include the optical couple isolation drive circuit individually connected respectively and recommend output driving circuit.
Preferably: described Collection unit includes stabilivolt.
Preferably: described soft startup circuit for power supply includes that resistance R5, R3, described controller UC2845 circuit include that diode D3, D5 and electric capacity C7, oscillation resistance R2, electric capacity C12 constitute oscillating circuit.
Preferably: described optical couple isolation drive circuit comprises optocoupler driver HCPL3120, resistance R12, R13, R14, diode D13 and electric capacity C16, resistance R12 mono-terminates outside input pwm signal.
The specific embodiment provided according to this utility model, the utility model discloses techniques below effect: by this utility model embodiment, a kind of many electrical level drive apparatus can be realized, under a kind of implementation, this device can include power circuit unit, IGBT drives control unit, IGBT driver element, Collection unit, fail signal output unit, it is characterized in that, described power circuit unit and described IGBT driver element drive control unit to be connected with described IGBT respectively, the input of described Collection unit is connected with described IGBT driver element, the outfan of described Collection unit is connected with described fail signal output unit, the outfan of described fail signal output unit drives control unit to be connected with described IGBT；Wherein, described power circuit unit includes DC-isolation power circuit, for producing the DC source of the two-way generating positive and negative voltage of isolation, described DC-isolation power circuit includes soft startup circuit for power supply, controller UC2845 circuit, pulse transformer T1 circuit and power supply output filter circuit；Described IGBT driver element includes that the first drive circuit and the second drive circuit, described first drive circuit and the second drive circuit include the optical couple isolation drive circuit individually connected respectively and recommend output driving circuit.The many electrical level drive apparatus provided by the application, circuit layout advantages of simple, cost of manufacture is cheap, can detect and control to produce the power on/off situation during faults such as short circuit.Stability and the reliability of this driving means can be improved.
Certainly, the arbitrary product implementing the application it is not absolutely required to reach all the above advantage simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of many electrical level drive apparatus circuit block diagram of this utility model；
Fig. 2 is the circuit diagram of the power circuit unit of a kind of many electrical level drive apparatus of this utility model.
In figure: power circuit unit 1, IGBT drive control unit 2, IGBT driver element 3, Collection unit 4, fail signal output unit 5.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
See Fig. 1, Fig. 2 and show a kind of many electrical level drive apparatus of this utility model, as shown in Figure 1 and Figure 2, described device includes that power circuit unit 1, IGBT drive control unit 2, IGBT driver element 3, Collection unit 4, fail signal output unit 5, it is characterised in that
Described power circuit unit 1 and described IGBT driver element 3 drive control unit 2 to be connected with described IGBT respectively, the input of described Collection unit 4 is connected with described IGBT driver element 3, the outfan of described Collection unit 4 is connected with described fail signal output unit 5, and the outfan of described fail signal output unit 5 drives control unit 2 to be connected with described IGBT；Described Collection unit can include stabilivolt.
Wherein, described power circuit unit 1 includes DC-isolation power circuit, for producing the DC source of the two-way generating positive and negative voltage of isolation, described DC-isolation power circuit includes soft startup circuit for power supply, controller UC2845 circuit, pulse transformer T1 circuit and power supply output filter circuit；Described IGBT driver element 3 includes that the first drive circuit and the second drive circuit, described first drive circuit and the second drive circuit include the optical couple isolation drive circuit individually connected respectively and recommend output driving circuit.Described soft startup circuit for power supply includes that resistance R5, R3, described controller UC2845 circuit include that diode D3, D5 and electric capacity C7, oscillation resistance R2, electric capacity C12 constitute oscillating circuit.Described optical couple isolation drive circuit comprises optocoupler driver HCPL3120, resistance R12, R13, R14, diode D13 and electric capacity C16, and resistance R12 mono-terminates outside input pwm signal.Soft startup circuit for power supply includes resistance R5, R3, diode D3, D5 and electric capacity C7, the anode of diode D5 and resistance R5 are simultaneously connected with compensation end 1 foot of controller, and the negative electrode of D5 is connected the positive pole of electric capacity C7 with the anode of D3, the other end ground connection of electric capacity C7, resistance R3 is also connected on D3.
The peripheral circuit of controller UC2845 is by oscillation resistance R2, electric capacity C12 constitutes oscillating circuit, 8 feet of the 1 termination UC2845 of resistance R2,4 feet of 2 termination UC2845, C12 mono-terminates 4 foot one end ground connection of UC2845, and the Voltage Feedback foot 2 of controller and current feedback foot 3 are by resistance R7 and R8 ground connection.
Pulse transformer T1 peripheral components has NPN audion Q1 and PNP triode Q2, resistance R1, R9, electric capacity C6, C14, and the former limit of transformator connects the E pole of audion Q1 and the C pole of Q2.Resistance R1, R9 connect the C pole of Q1 and the E pole of Q2 respectively, and its other end meets VCC and GND respectively.Resistance R6 and C6 is also connected between the B pole of Q1 and Q2 and 6 feet of controller.Diode D8 is connected between controller 6 foot and GND.The Voltage Feedback of controller and current feedback ground connection, make the PWM ripple of controller output fixed frequency and dutycycle to drive audion, decrease feedback circuit, decrease the regulation vibration that feedback regulation causes, make structure the simplest, realize stablizing of output voltage by stabilivolt, realize exporting desired voltage by the winding of Rational choice transformator, greatly reduce the quantity of peripheral control device, it is thus able to improve reliability, make PCB fabric swatch smaller, cost-effective.
In a word, the many electrical level drive apparatus provided by the application, circuit layout advantages of simple, cost of manufacture is cheap, can detect and control to produce the power on/off situation during faults such as short circuit.Stability and the reliability of this driving means can be improved.
It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation or sequentially that there is any this reality between these entities or operation.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All any modification, equivalent substitution and improvement etc. made within spirit of the present utility model and principle, are all contained in protection domain of the present utility model.
Claims (4)
1. an electrical level drive apparatus more than, drives control unit, IGBT driver element, Collection unit, fail signal output unit including power circuit unit, IGBT, it is characterised in that
Described power circuit unit and described IGBT driver element drive control unit to be connected with described IGBT respectively, the input of described Collection unit is connected with described IGBT driver element, the outfan of described Collection unit is connected with described fail signal output unit, and the outfan of described fail signal output unit drives control unit to be connected with described IGBT；
Wherein, described power circuit unit includes DC-isolation power circuit, for producing the DC source of the two-way generating positive and negative voltage of isolation, described DC-isolation power circuit includes soft startup circuit for power supply, controller UC2845 circuit, pulse transformer T1 circuit and power supply output filter circuit；Described IGBT driver element includes that the first drive circuit and the second drive circuit, described first drive circuit and the second drive circuit include the optical couple isolation drive circuit individually connected respectively and recommend output driving circuit.
Many electrical level drive apparatus the most according to claim 1, it is characterised in that described Collection unit includes stabilivolt.
Many electrical level drive apparatus the most according to claim 1, it is characterised in that described soft startup circuit for power supply includes that resistance R5, R3, described controller UC2845 circuit include that diode D3, D5 and electric capacity C7, oscillation resistance R2, electric capacity C12 constitute oscillating circuit.
Many electrical level drive apparatus the most according to claim 1, it is characterised in that described optical couple isolation drive circuit comprises optocoupler driver HCPL3120, resistance R12, R13, R14, diode D13 and electric capacity C16, resistance R12 mono-terminates outside input pwm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520862335.4U CN205430039U (en) | 2015-11-03 | 2015-11-03 | Many level drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520862335.4U CN205430039U (en) | 2015-11-03 | 2015-11-03 | Many level drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205430039U true CN205430039U (en) | 2016-08-03 |
Family
ID=56518026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520862335.4U Expired - Fee Related CN205430039U (en) | 2015-11-03 | 2015-11-03 | Many level drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205430039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063566A (en) * | 2019-11-28 | 2020-04-24 | 南京国电南自电网自动化有限公司 | IGBT-based quick switching-off circuit |
| CN111884520A (en) * | 2020-08-03 | 2020-11-03 | 西安许继电力电子技术有限公司 | Driving power supply circuit and driving power supply thereof |
-
2015
- 2015-11-03 CN CN201520862335.4U patent/CN205430039U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063566A (en) * | 2019-11-28 | 2020-04-24 | 南京国电南自电网自动化有限公司 | IGBT-based quick switching-off circuit |
| CN111884520A (en) * | 2020-08-03 | 2020-11-03 | 西安许继电力电子技术有限公司 | Driving power supply circuit and driving power supply thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204046407U (en) | A kind of many level IGBT drive circuit | |
| KR101872627B1 (en) | Flyback quick start driving circuit and driving method | |
| CN103236787A (en) | Capacity discharge method and circuit | |
| CN109510176B (en) | Intelligent power module driving protection circuit | |
| CN106411134A (en) | DC/DC converter, power supply device, power adapter and electronic device | |
| CN202798435U (en) | High-performance and low-cost IGBT negative voltage bootstrap drive circuit | |
| CN103905019B (en) | A kind of IGBT module gate-drive equivalent resistance adjusts circuit | |
| CN105897232A (en) | Drive unit | |
| US20160056723A1 (en) | Buck Converter Having Self-Driven BJT Synchronous Rectifier | |
| CN205430039U (en) | Many level drive device | |
| CN104627018A (en) | Electric automobile motor control system | |
| CN101622778B (en) | DC power supply device | |
| CN110880858A (en) | Drive circuit of switching power supply, half-bridge topology switching power supply and electronic equipment | |
| CN104010148A (en) | Power circuit and television | |
| CN209946309U (en) | IGBT drive test circuit | |
| CN103630128A (en) | Circuit of single transformer for realizing luminance building-up and maintaining functions of laser gyroscope high-voltage power supply | |
| CN201266919Y (en) | Power supply circuit of proximity switch | |
| CN103888011B (en) | Controller and controlling system and method for hiccup-mode driving signals | |
| CN105515357B (en) | A kind of DCDC current-limiting circuits | |
| CN104124949A (en) | Bootstrap circuit, inverter and air conditioner | |
| CN109149913A (en) | Metal-oxide-semiconductor driving circuit | |
| CN203859678U (en) | Switching power supply of photovoltaic grid-connected inverter | |
| US9692322B2 (en) | Inverter with improved shoot through immunity | |
| CN203617892U (en) | Driving and control device used for coil panel of electric cooker | |
| CN105245090B (en) | The drive circuit of the switch mode power conversion module communicated based on infrared isolation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20191103 |