Bucket brigade circuit

Details Bucket brigade circuit Bucket brigade circuit

1977-10-13

1978-12-19

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307200B, 307221C, 307251, 307264, 307DIG4, G11C 1928, G11C 1918, H03K 1710, H03K 1716

Patent

active

041307666

ABSTRACT:
An improved bucket brigade circuit is disclosed having an improved transfer efficiency and dynamic range. Conventional bucket brigade circuits consist of a chain of storage capacitors and charge transfer circuits functioning as an analog shift register. Due to the nodal capacitance at the first load of prior art circuits, the charge thereon cannot be maintained at an optimum level because of voltage pull-back and charge redistribution during the fall time of the clock pulse. The invention disclosed herein provides an additional capacitor connecting the first node of the circuit to the inverse of the clock waveform, thereby eliminating the voltage pull-back and charge redistribution problem, resulting in an improved charge transfer efficiency and dynamic range for the circuit.

REFERENCES:
patent: 3546490 (1970-12-01), Sangster
patent: 3575609 (1971-04-01), Izumi
patent: 3745383 (1973-07-01), Sangster
patent: 3789239 (1974-01-01), Heeren
patent: 3983414 (1976-09-01), Stafford et al.
Sangster, Philips Tech. Review, vol. 31, No. 4, pp. 97-110; 1970.

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