Voltage translator with restricted output voltage swing

Details Voltage translator with restricted output voltage swing Voltage translator with restricted output voltage swing

1987-06-15

1989-04-25

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307456, 307458, 307551, 307544, 307559, 307560, H03K 19092, H03K 1704, H03K 1760, H03K 19088

Patent

active

048251089

ABSTRACT:
A voltage translator containing a bipolar transistor (Q1), a rectifier (10), a resistor (R1), and a first clamp (12) converts an input voltage (V.sub.I) into one or more output voltages of restricted voltage swing. The first clamp clamps the emitter voltage of the transistor when it is turned on. In one version, the translator includes a second clamp (14) that clamps the collector voltage of the translator when it is turned off. The translator then provides an output voltage (V.sub.O) inverse to the input voltage. In another version, the first clamp is connected between a voltage supply (V.sub.EE) and the emitter of the transistor. Its collector is connected directly to another voltage supply (V.sub.CC) so that the translator only makes non-inverting translations.

REFERENCES:
patent: 3259761 (1966-07-01), Narud et al.
patent: 3560760 (1971-02-01), Chung et al.
patent: 3742250 (1973-06-01), Kan
patent: 3755693 (1973-08-01), Lee
patent: 3778646 (1973-12-01), Masaki
patent: 3987310 (1976-10-01), Peltier et al.
patent: 4394588 (1983-07-01), Gaudenzi
patent: 4501976 (1985-02-01), West et al.
patent: 4536664 (1985-08-01), Martin
patent: 4749885 (1988-06-01), Gal
"TTL Logic Data Manuel", Signetic Corp., pp. 2-1 and 2-3.

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