Duty cycle control circuit

Details Duty cycle control circuit Duty cycle control circuit

1992-08-04

1995-03-14

Wolfe, Willis R.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327175, 327557, H03F 345, H03K 522

Patent

active

053979451

ABSTRACT:
A circuit for converting an input signal with an arbitrary duty cycle to an output signal with a 50 percent duty cycle. A bandpass filter removes unwanted DC and high frequency components from the input signal. A comparator compares the filtered signal to a reference voltage and provides very high gain amplification to produce an output signal having a 50 percent duty cycle. In one embodiment, two bandpass filters are used to condition the signal prior to providing it to the comparator. Each bandpass stage is comprised of a low pass filter followed by a high pass filter.

REFERENCES:
patent: 4015224 (1977-03-01), Benzinger
patent: 4442814 (1984-04-01), Kubozuka
patent: 4752741 (1988-06-01), Kim et al.
patent: 4800500 (1989-01-01), Tanaka
patent: 4841461 (1989-06-01), Yamamoto et al.
patent: 5072200 (1991-12-01), Ranky
patent: 5227671 (1993-07-01), Ehrlich

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