Grid overvoltage protection circuit

Published:2011/8/22 21:14:00 Author:muriel | Keyword: Grid , overvoltage protection circuit | From:SeekIC

Reasons for grid's overvoltage: 1. Static electricity on the grid capacitance cancause overvoltage.2. Capacitance mueller effect causes grid overvoltage.To prevent the IGBT grid-emitter from overvoltge, a resistance with dozen kilohm should be connected between the grid and emitter of IGBT in parallel. As the figure is shown, the resistance should beclosed to the grid and emitter.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/Grid_overvoltage_protection_circuit.html

Print this Page | Comments | Reading(3)