Electric power steering apparatus

Details Electric power steering apparatus Electric power steering apparatus

2006-03-07

2006-03-07

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

C318S508000, C318S514000, C318S563000, C318S609000

Reexamination Certificate

active

07009349

ABSTRACT:
A resistor member having a resistance value substantially equal to a resistance of a relay in an ON state is inserted into a current supply path which is not inserted with the relay in current supply paths for supplying currents from a driving circuit to a brushless motor. Further, in the driving circuit, widths of bus bars forming wirings are set such that resistances of the wirings (contact resistance) from a branch point on power source side to Hi side FET (source terminals thereof) are equal to each other and widths of bus bars forming the wirings are set such that the resistances of the wirings from a ground side branch point NL to Lo side FET (source terminals thereof) become equal to each other.

REFERENCES:
patent: 5631529 (1997-05-01), Shimizu et al.
patent: 6370459 (2002-04-01), Phillips
patent: 6392854 (2002-05-01), O'Gorman
patent: 6400116 (2002-06-01), Chen et al.
patent: 6927548 (2005-08-01), Nishizaki et al.
patent: 2001-106098 (2001-04-01), None

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