Current to voltage converter

Details Current to voltage converter Current to voltage converter

1977-06-15

1978-04-25

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

307127, 307138, H02M 700

Patent

active

040866246

ABSTRACT:
Disclosed is a circuit for converting a current input of either polarity to a low voltage output of a single polarity. The circuit includes two pairs of pnp-npn transistors which are coupled to that current flow in one direction will turn on one pair while the other is reverse biased, and the same polarity will appear at the output regardless of the polarity of the input. The low voltage at the output is established by the voltage drop across the transistors of the pair which are conducting. The circuit is particularly suited for converting telephone line current to a voltage output of 1.5 volts or less.

REFERENCES:
patent: 2994044 (1961-07-01), Straube
patent: 3434034 (1969-03-01), Garber et al.
patent: 3665221 (1972-05-01), Wickliff
patent: 3819951 (1974-06-01), Moore

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