Novel high -power IGBT flexible drive and protection circuit
The utility model provides a novel high -power IGBT flexible drive and protection circuit, include: work power supply circuit, push -pull type drive circuit, series connection avalanche diode feedback loop and protection threshold adjustment circuit, the voltage spike who adopts avalanche diode to o...
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| creator | MA BAOHUI LIU WEI JIANG JIACHEN WANG YOUYUN SHANG QINGHUA YUAN XIAOWEI LIN HONGYUAN |
| description | The utility model provides a novel high -power IGBT flexible drive and protection circuit, include: work power supply circuit, push -pull type drive circuit, series connection avalanche diode feedback loop and protection threshold adjustment circuit, the voltage spike who adopts avalanche diode to open and turn -off the production to IGBT carries out closed -loop control, and simultaneously, the impedance of opening and turn -offing high -power IGBT gate pole IG is controlled respectively and to album emitter -base bandgap grading voltage spike's a two -stage closed -loop control, change gate pole drive current's slewing rate, make IGBT operating condition maintain linear zone a period, reach restriction IGBT collection emitter -base bandgap grading spike voltage flexible drive's mesh, through protection threshold adjustment circuit in to series connection avalanche diode feedback loop avalanche diode's short circuit adjust, the completion is to the double stage control of IGBT protection threshold value. |
| format | Patent |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | Novel high -power IGBT flexible drive and protection circuit |
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