Dual channel digitally switched capacitor filter

Details Dual channel digitally switched capacitor filter Dual channel digitally switched capacitor filter

1980-09-22

1982-08-10

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

307242, 328151, H03H 1900, H03K 400

Patent

active

043440509

ABSTRACT:
A switched capacitor filter is designed utilizing two parallel switched capacitor charge pumps. These two, parallel charge pumps operate out of phase with each other, thereby allowing charging of a storage capacitor at a rate equal to twice the clock frequency, thereby decreasing incremental voltage steps during the charging of the storage capacitor.

REFERENCES:
patent: 3597707 (1971-08-01), Chao et al.
patent: 4179665 (1979-12-01), Gregorian
Rogers-"The Theory of Networks in Electrical Communication and Other Fields", MacDonald, London, 1957, title page and pp. 437-439.

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