Zero crossing detector

Details Zero crossing detector Zero crossing detector

1980-10-27

1982-08-17

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307358, 328150, H03K 5153, G01R 19175

Patent

active

043451691

ABSTRACT:
An improved zero crossing detector utilizes a voltage comparator having two inputs and an output. An amplifier supplies the electrical signal to one input and an inverting amplifier supplies the inverse of this signal to the other input of the voltage comparator. The voltage comparator changes its state when the relative polarities of its two inputs change.

REFERENCES:
patent: 3768024 (1973-10-01), Letosky

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