Series voltage regulator employing a variable reference voltage

Details Series voltage regulator employing a variable reference voltage Series voltage regulator employing a variable reference voltage

1984-11-07

1986-12-30

Salce, Patrick R.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

361 18, G05F 156

Patent

active

046331620

ABSTRACT:
In a series voltage regulator having a regulating transistor (T) arranged with its emitter-to-collector path in a series arm of the regulator, the base of this regulating transistor being controlled by a differential amplifier (V) which compares a voltage proportional to the regulator output voltage (U.sub.2) with a reference voltage (U.sub.C), this reference voltage is available from a capacitor (C) to which a voltage limiting circuit (B) limiting the reference voltage to a maximum level (U.sub.R) is assigned, and which is connected to the output of a transconductance circuit (G) whose output current (I.sub.A) depends on the difference (U.sub.D) between the output voltage (U.sub.2) and the input voltage (U.sub.1) of the series voltage regulator.

REFERENCES:
patent: 3534249 (1970-10-01), Neill et al.
patent: 3916294 (1975-10-01), Kennedy
L. Buttner, "Entwurf Transistorisierter Gleichspannungskonstanthalter", 1965, Funk-Technik, No. 23, pp. 947-950.

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