Variable control of electronic power supplies

Details Variable control of electronic power supplies Variable control of electronic power supplies

1995-11-16

1997-06-03

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

Control means for anode of screen grid circuit

330123, 330202, 330285, 330297, 381 61, 381120, A03G 702

Patent

active

056358725

ABSTRACT:
A regulated power supply control system with adjustable operating point and adjustable dynamic behavior for use with electronic power supply circuits, such as musical instrument amplifiers. The control system includes a measurement circuit (20) that generates a measured signal (22) based on an observed signal (18) in an amplifier (10); a sag control circuit (24) that generates a sag signal (32) based on the measured signal (22); a referenced circuit (34) that generates a static reference signal (38); and a regulator (44) that uses the static reference signal (38) and sag signal (32) to generate a regulated power supply output (14) that is used by the amplifier (10). The sag control circuit (24) permits adjustment of the sag signal 32 by a user-operated sag magnitude control (26), sag rate control (28), and sag recovery rate control (30).

REFERENCES:
patent: 4797633 (1989-01-01), Humphrey

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