G - Physics
05
F
G05F 1/10 (2006.01) G05B 11/28 (2006.01) H05B 37/02 (2006.01)
Patent
CA 2646258
A load controller includes: a first input circuit which detects that a drive instruction signal by an operation of a drive instructing unit is less or equal to a first input threshold value; a first constant current source activated in accordance with the detection; a PWM signal supply unit that is activated by the first constant current source and supplies a PWM signal having a prescribed frequency and a duty ratio; a constant control signal supply unit that supplies a constant control signal during failure of the first input circuit or the first constant current source; a drive control unit that generates a PWM drive control signal in accordance with the PWM signal and generates a constant drive control signal in accordance with the constant control signal; and a load driving element that is controlled by the PWM drive or constant drive control signal to drive a load.
Kasai Masahiro
Tanaka Akihiro
Tashiro Tatsumi
Uchikura Tsuyoshi
Yabe Hiroo
Riches Mckenzie & Herbert Llp
Toyota Jidosha Kabushiki Kaisha
Yazaki Corporation
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