Sine-wave static converter

Details Sine-wave static converter Sine-wave static converter

1978-11-20

1981-01-06

Miller, J. D.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 79, 363132, H02P 1320

Patent

active

042440165

ABSTRACT:
The method and apparatus of converting a sine-wave signal of one frequency to a sine-wave signal of a different frequency comprises a four port pass means that is controlled by at least two control signals. An error signal is generated by the difference between the rectified output signal and a locally generated reference signal. The error signal is compared to a high frequency sawtooth signal to provide a pulse width signal which generates a two state output signal. The first state is when the amplitude of the sawtooth signal is less than the error signal and the second state is when the amplitude of the sawtooth signal is greater than the amplitude of the error signal. The two state pulse width modulated signal is combined with the output from a polarity control means for obtaining the control signals.

REFERENCES:
patent: 3590360 (1971-06-01), Puckette
patent: 3624486 (1971-11-01), Oates
patent: 3710229 (1973-01-01), Jessee
patent: 3831077 (1974-08-01), Richeson, Jr.

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