PWM signal generation apparatus and method thereof and motor...

Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control

Reexamination Certificate

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C318S400060, C318S811000

Reexamination Certificate

active

07449854

ABSTRACT:
A PWM signal generation of the present invention includes a counter, a compare register, a comparator comparing a compare value of the compare register with a count value of the counter and outputting an identity signal, a PWM signal generation circuit determining a pulse width of a PWM signal according to the identity signal, and an additional bit setting register storing an additional bit provided to change the pulse width of the PWM signal.

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patent: 7017069 (2006-03-01), Kudo et al.
patent: 2002/0184469 (2002-12-01), Bowling
patent: 2005/0285582 (2005-12-01), Azuma et al.
patent: 2004-301806 (2004-10-01), None

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