Time variant analog signal switching apparatus including switchi

Details Time variant analog signal switching apparatus including switchi Time variant analog signal switching apparatus including switchi

1991-08-02

1992-08-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including gain control means

307542, 330144, 330149, H03G 330, H03K 1716

Patent

active

051402831

ABSTRACT:
A time variant signal switching circuit that includes circuitry (303 and 304) that detects prescribed zero crossings and restricts switch state changes of a switch complex (305) to those prescribed times the time variant signal is at zero. By restricting switch state changes to prescribed zero crossings voltage transients due to the switching action are avoided.

REFERENCES:
patent: 3500316 (1970-03-01), Brown
patent: 4628276 (1986-12-01), Mitzutani
patent: 4683386 (1987-07-01), Kawara
patent: 4918397 (1990-04-01), Kidger

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