Isolation amplifier with capacitive coupling

Details Isolation amplifier with capacitive coupling Isolation amplifier with capacitive coupling

1993-05-24

1994-11-01

Mottola, Steven

Amplifiers

With periodic switching input-output

330 51, H03F 114

Patent

active

053610377

ABSTRACT:
An isolation linear amplifier circuit provides and utilizes coupling of switched-capacitors. An input differential signal is converted to a proportionated charge on the capacitor by gates controlling of charging and discharging of appropriate capacitors. Then the charge is detected by a differential amplifier with high input resistance. The isolation barrier is established by a configuration of capacitors and an array of gating switches.

REFERENCES:
patent: 4354169 (1982-10-01), Nossek
patent: 4555668 (1985-11-01), Gregorian
patent: 4580103 (1986-04-01), Tompsett
patent: 5116481 (1992-05-01), Ozawa
patent: 5136255 (1992-08-01), Fattaruso
patent: 5187390 (1993-02-01), Scott

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