G - Physics
05
F
G05F 1/10 (2006.01) G05B 11/28 (2006.01)
Patent
CA 2646524
A load controller includes: an input circuit which detects that a drive instruction signal is less or equal to a first input threshold value; a constant current source activated in accordance with a detection by the input circuit; a PWM signal generating unit that is activated by the constant current source and generates a PWM signal; a comparator that is activated by the constant current source and compares the drive instruction signal with a second input threshold value set to be lower than the first input threshold value; a logic calculation unit that carries out a logic calculation of the PWM signal with a compared result of the comparator; a drive control unit that operates in accordance with an output from the logic calculation unit to generate a PWM drive control signal; and a load driving element that is driven by the PWM drive control signal to control 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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