AC signal producer and method thereof

Details AC signal producer and method thereof AC signal producer and method thereof

2011-01-04

2011-01-04

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C330S20700P, C330S251000

Reexamination Certificate

active

07863879

ABSTRACT:
An AC signal producer comprises a controlling unit, a Class-D switch circuit, and a low-pass filter. The control unit receives a DC signal and produces a PWM control signal via checking reference tables. The Class-D switch circuit receives the PWM control signal and outputs a square-wave signal. The low-pass filter converts the square-wave signal into the AC signal. Thereby, disadvantages associated with the utilization of an oscillator and a transformer to convert the DC signal to an AC signal could be solved.

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Communication from Taiwan Patent Office dated Jun. 23, 2010 in reference to a counterpart foreign application.

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