Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control
Reexamination Certificate
2006-09-26
2008-11-11
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Brushless motor closed-loop control
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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McGinn IP Law Group PLLC
NEC Electronics Corporation
Ro Bentsu
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