Electric power steering circuit device

Details Electric power steering circuit device Electric power steering circuit device

1995-06-28

1997-02-11

Ro, Bentsu

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

361690, 361711, 361717, B62D 504, H05K 330

Patent

active

056024517

ABSTRACT:
An electric power steering circuit device comprising a microcomputer, a bridge circuit for switching, a motor current output by a battery to drive a motor based on an output signal from the microcomputer, wiring patterns for flowing a large current, an insulated printed-circuit board for mounting the microcomputer, and a heat radiating plate for mounting thereon on the semiconductor switching elements. The bridge circuit includes a plurality of semiconductor switching elements, and the wiring patterns comprise metal plates fixed by molding. The heat radiating plate and the insulation printed-circuit board are overlapped through a predetermined space.

REFERENCES:
patent: 3530350 (1970-09-01), Gawron et al.
patent: 3531702 (1970-09-01), Hill
patent: 4218724 (1980-08-01), Kaufman
patent: 4668898 (1987-05-01), Harms et al.
patent: 4872102 (1989-10-01), Getter
patent: 4942380 (1990-07-01), Bradford et al.
patent: 5012173 (1991-04-01), Fujioka et al.
patent: 5497289 (1996-03-01), Sugishima et al.

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