Patent ID: 6756825
Filing Date: 2004-06-29
Classification: H02M,H03K

Abstract:
A power device driving circuit comprising:a plurality of low-side switching devices forming an inverter circuit, each having one terminal connected to a load and another terminal connected to a low-potential line which is common to the low-side switching devices; a plurality of driving circuits configured to drive said plurality of low-side switching devices, respectively; a power source connected to said plurality of driving circuits; interconnect wiring configured to connect said plurality of driving circuits and said power source, so that said interconnect wiring is electrically connected with said low-potential line, said interconnect wiring including a first high potential interconnect wire connected to a high potential terminal of the power source and a second high potential interconnect wire connected to the high potential terminal of the power source; and first resistors respectively provided on said interconnect wiring between each of said plurality of driving circuits and said power source such that surge currents from the power source are diverted to the second high potential interconnect wire.