Low current drain amplifier system

Details Low current drain amplifier system Low current drain amplifier system

1976-11-03

1978-06-27

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307230, 307361, 328146, H03K 1700

Patent

active

040977668

ABSTRACT:
A low current drain amplifier system, adaptable for use in cardiac pacers and other applications requiring low current drain operation, having an amplifier path comprising transconductance amplifier means characterized by having the circuit characteristic of a current source at its output, the transconductance amplifier means direct driving an active circuit having a high impedance input, and a current source supply for maintaining fixed current operation of the amplifier system elements. In the preferred embodiment, the amplifier path contains a first OTA operating as an amplifier of received signals, the first OTA having its output direct coupled to an input of a second OTA which operates as a comparator, the output of the comparator OTA being direct connected to an IC transistor element.

REFERENCES:
patent: 3989958 (1976-11-01), Renirie et al.
patent: 3989959 (1976-11-01), Renirie et al.
patent: 4023046 (1977-05-01), Renirie et al.

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