Digitally controlled monotonic attenuator

Details Digitally controlled monotonic attenuator Digitally controlled monotonic attenuator

1988-03-28

1989-03-07

Wong, Peter S.

Electricity: power supply or regulation systems

External or operator controlled

Using an impedance as the final control device

333 81R, 307540, G05F 308

Patent

active

048109495

ABSTRACT:
At least two attenuator banks are intercoupled in a cascaded arrangement, wherein the signal across each subsequent attenuator bank comprises a differential signal representing a selected attenuation (or voltage) step of the preceding attenuator bank. In this way monotonic attenuator operation is assured.

REFERENCES:
patent: 3015790 (1962-01-01), Eisaman et al.
patent: 4280089 (1981-07-01), van de Plassche et al.
patent: 4489270 (1984-12-01), Diller
patent: 4521764 (1985-06-01), Burton
patent: 4549131 (1985-10-01), Kusazaki
patent: 4550400 (1985-10-01), Henderson et al.
patent: 4683386 (1987-07-01), Kamikawara

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