Transistor slope reversing circuit for digital clock display bri

Details Transistor slope reversing circuit for digital clock display bri Transistor slope reversing circuit for digital clock display bri

1978-04-07

1980-09-09

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307311, 307236, H03K 604

Patent

active

042219760

ABSTRACT:
A circuit which utilizes a single transistor and a particular resistor combination to form a new slope reversing circuit in which the output voltage is a function of the input voltage with a change of sign for a monotonically varying input voltage. The circuit is valid for a transistor having a high current gain operating in either the active transistor region or the saturated transistor region. The circuit is of particular value when used as a brightness control circuit for a light display used in conjunction with a digital clock for automobile use.

REFERENCES:
patent: 3054068 (1962-09-01), De Jong
patent: 3098936 (1963-07-01), Isabeau

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