CN202276335U - Universal driving system for power device - Google Patents
Universal driving system for power device Download PDFInfo
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- CN202276335U CN202276335U CN2011204358614U CN201120435861U CN202276335U CN 202276335 U CN202276335 U CN 202276335U CN 2011204358614 U CN2011204358614 U CN 2011204358614U CN 201120435861 U CN201120435861 U CN 201120435861U CN 202276335 U CN202276335 U CN 202276335U
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Abstract
The utility model relates to a universal driving system for a power device, comprising an optoelectronic isolation driving circuit, a work power, a periphery dead-zone circuit, an optical fiber sending circuit, and an optical fiber receiving circuit, wherein the output end of the optoelectronic isolation driving circuit is used for connecting with the power device; the periphery dead-zone circuit is composed of 74LS06 chips; the input end of the periphery dead-zone circuit receives a PWM modulating signal with no dead-zone transmitted by a control system and converts the no-dead-zone PWM modulating signal into a PWM modulating signal with a dead-zone; the input end of the optical fiber sending circuit is connected with the output end of the periphery dead-zone circuit; the input end of the optical fiber receiving circuit receives the signal sent by the optical fiber sending circuit in an optical transmission mode; and the output end of the optical fiber receiving circuit is connected with the input end of the optoelectronic isolation driving circuit. The universal driving system for a power device uses optical fiber transmission for transmitting the PWM modulating signal, and isolates a control loop and a power loop, thus significantly improving the reliability of a system, and avoiding the situation that the power device can be burned down by the overcurrent generated by breakover of upper and lower bridge arms caused by dead halt of a software.
Description
Technical field
The utility model relates to a kind of electronic type drive system, particularly power device general driving system.
Background technology
Along with the modern social science technology develops rapidly; The power electronics semiconductor power device has obtained using widely such as thyristor, IGBT, IPM etc.; And these power devices are if normally work; Just need drive accurately it, therefore, how correctly the drive system of design power device just seems extremely important.
Conventional design is to utilize software to generate the dead band through the master control chip of control system such as DSP etc.; To insert photoelectric isolating circuit with PWM (pulse-width signal) modulation signal in dead band then; In order to control loop and power major loop are isolated; Play a protective role, simultaneously the PWM modulation signal is amplified, to reach the ability of driving power device.But this scheme has two point defects: the one, and dead-zone circuit is generated by software, thereby may cause that when powering on the disorder of PWM modulation signal makes the conducting simultaneously of power device upper and lower bridge arm burn power device; The 2nd, the power supply of drive system is with the alternating voltage step-down, presses through LM78XX steady pressure of system chip output galvanic current then and supplies power.Because LM78XX series voltage stabilizing chip withstand voltage is not high enough, performance is good inadequately, is damaged than being easier to, and causes power supply unstable, so just might burn power device.
The utility model content
The purpose of the utility model is the problem that exists to prior art and a kind of power device general driving system is provided, to avoid software to crash and to improve system reliability.
This novel purpose is achieved in that this power device general driving system; Comprise that its output is as the photoelectric isolating driving circuit and the working power thereof that are connected with power device; Also have; The peripheral dead-zone circuit of being made up of chip 74LS06: the no dead band PWM modulation signal that its input receiving control system transmits converts the PWM modulation signal in band dead band then to;
The optical fiber transtation mission circuit: its input is connected with the output of peripheral dead-zone circuit;
Optical receiving circuit: its input receives the signal that the optical fiber transtation mission circuit sends through the optical transmission form, and its output is connected with the input of said photoelectric isolating driving circuit.
It is the chip composition of HFBR1528 that above-mentioned optical fiber transtation mission circuit adopts model, and it is the chip composition of HFBR2528 that optical receiving circuit adopts model.
It is the chip composition of VLA106-24151 that above-mentioned working power adopts model.
Basis is novel uses power device power source special chip high performance, high withstand voltage that DC power supply is provided through using the hardware dead-zone circuit to produce the dead band, has greatly improved the operating efficiency and the stability of drive system.
Basis is novel to adopt special power drives chip to carry out independently-powered simultaneously; And, realized the electrical isolation of control loop and major loop, and general interface is provided through Optical Fiber Transmission PWM modulation signal; Realized the restructural of system, extendible and versatility, can be used widely.
This novel operation principle is: the hardware dead-zone circuit provides a general interface; Be used to receive the PWM modulation signal; The hardware dead-zone circuit is that the PWM modulation signal produces the dead band, the PWM modulation signal input optical fibre sending module in band dead band, and sending module sends to optic fiber transceiver module with pwm signal with the form of light; Because the optic module driving force is not enough; For the effect with control loop and loop of power circuit isolation, therefore the optic fiber transceiver module output is inserted the input of photoelectricity isolation drive module simultaneously, the output of photoelectricity isolation drive module is used for the driving power device with pwm signal input power device.In addition, provide six the tunnel independently power supply supplied power to photoelectricity isolation drive module that (" module " all refers to " circuit " in the literary composition through VLA106-24151.
The beneficial effect of the utility model is:
1, supply power through special power supply chip VLA106-24151, antijamming capability strengthens greatly, has greatly improved the stability of system.
2, utilize hardware to generate dead-zone circuit, when having avoided occurring utilizing software to generate dead-zone circuit, software crashes and the upper and lower bridge arm conducting that causes produces the situation that overcurrent is burnt power device.
3, adopt Optical Fiber Transmission PWM modulation signal, control loop and loop of power circuit are isolated, improved the reliability of system greatly.
Description of drawings
Fig. 1 is this novel hardware structure diagram.
Fig. 2 is this novel systematic schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and instance to this novel being further described.
Referring to Fig. 1, Fig. 2; Peripheral dead-zone circuit provides a general interface; Be used to receive the PWM modulation signal; Peripheral dead-zone circuit is that the PWM modulation signal produces the dead band, the PWM modulation signal input optical fibre transtation mission circuit (chip model HFBR1528) in band dead band, and transtation mission circuit (HFBR1528) sends to optical receiving circuit (chip model HFBR2528) with pwm signal with the form of light; Because optical receiving circuit (HFBR2528) driving force is not enough; For the effect with control loop and loop of power circuit isolation, therefore the optical receiving circuit output is inserted the input of photoelectric isolating driving circuit (chip model HP4504) simultaneously, the output of photoelectric isolating driving circuit is used for the driving power device with pwm signal input power device.In addition, through VLA106-24151 provide six the tunnel independently power supply HP4504 is supplied power.
Fig. 2 illustrates power device general driving system: the no dead band PWM modulation signal that peripheral dead-zone circuit input receiving control system transmits converts the PWM modulation signal of being with the dead band then to; The PWM modulation signal input optical fibre transtation mission circuit in band dead band, the optical fiber transtation mission circuit passes to optical receiving circuit with the form of modulation signal through optical transmission and is converted into voltage signal; The optical receiving circuit output is connected to the photoelectric isolating driving circuit input; The photoelectric isolating driving circuit output is connected to power device with the work of driving power device.
As preferred version, the model of power drives chip is VLA106-24151.It is HFBR1528 that the optical fiber transtation mission circuit adopts the chip model.It is HFBR2528 that optical receiving circuit adopts the chip model.It is HP4504 that photoelectric isolating driving circuit adopts the chip model.
Claims (3)
1. power device general driving system; Comprise; Its output is characterized in that also having as the photoelectric isolating driving circuit and the working power thereof that are connected with power device; The peripheral dead-zone circuit of being made up of chip 74LS06: the no dead band PWM modulation signal that its input receiving control system transmits converts the PWM modulation signal in band dead band then to;
The optical fiber transtation mission circuit: its input is connected with the output of peripheral dead-zone circuit;
Optical receiving circuit: its input receives the signal that the optical fiber transtation mission circuit sends through the optical transmission form, and its output is connected with the input of said photoelectric isolating driving circuit.
2. power device general driving according to claim 1 system is characterized in that, it is that the chip of HFBR1528 is formed that said optical fiber transtation mission circuit adopts model, and it is that the chip of HFBR2528 is formed that optical receiving circuit adopts model.
3. according to claim 1 or 2 described power device general driving systems, it is characterized in that it is that the chip of VLA106-24151 is formed that said working power adopts model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204358614U CN202276335U (en) | 2011-11-07 | 2011-11-07 | Universal driving system for power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204358614U CN202276335U (en) | 2011-11-07 | 2011-11-07 | Universal driving system for power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276335U true CN202276335U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204358614U Expired - Lifetime CN202276335U (en) | 2011-11-07 | 2011-11-07 | Universal driving system for power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394632A (en) * | 2011-11-07 | 2012-03-28 | 四川省电力公司遂宁公司 | Universal driving system for power devices |
| CN103715871A (en) * | 2014-01-02 | 2014-04-09 | 上海理工大学 | High-power MOSFET driving circuit |
-
2011
- 2011-11-07 CN CN2011204358614U patent/CN202276335U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394632A (en) * | 2011-11-07 | 2012-03-28 | 四川省电力公司遂宁公司 | Universal driving system for power devices |
| CN103715871A (en) * | 2014-01-02 | 2014-04-09 | 上海理工大学 | High-power MOSFET driving circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20140221 |
|
| C56 | Change in the name or address of the patentee |
Owner name: SUINING POWER SUPPLY COMPANY, STATE GRID SICHUAN E Free format text: FORMER NAME: SICHUAN ELECTRIC POWER COMPANY SUINING COMPANY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 629000 No. 370 Mingyue Road, Sichuan, Suining Patentee after: SUINING POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER CO. Address before: 629000 No. 370 Mingyue Road, Sichuan, Suining Patentee before: SUINING CO LTD OF SICHUAN ELECTRIC POWER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140221 Address after: 629000 No. 370 Mingyue Road, Sichuan, Suining Patentee after: SUINING POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER CO. Patentee after: State Grid Corporation of China Address before: 629000 No. 370 Mingyue Road, Sichuan, Suining Patentee before: SUINING POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER CO. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |