Circuit board

There is provided a circuit board, which can constitute a driving circuit for driving a motor to be smaller. Chip components 63 constituting photo-couplers 62U-62Z, an over-voltage protecting circuit 60, etc., are surface-mounted between a module 3 in which six transistors are included and a three-p...

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1. Verfasser: MORI, OSAMI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:There is provided a circuit board, which can constitute a driving circuit for driving a motor to be smaller. Chip components 63 constituting photo-couplers 62U-62Z, an over-voltage protecting circuit 60, etc., are surface-mounted between a module 3 in which six transistors are included and a three-phase inverter is formed and the rear of a printed board 61. Components such as a packaged operational amplifier 30, a fuse 46 and an IGBT 47 are insertion-mounted on the surface side of the printed board 61.