Voltage level detector for power amplifier protection control

Details Voltage level detector for power amplifier protection control Voltage level detector for power amplifier protection control

2007-01-23

2007-01-23

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including protection means

C330S051000

Reexamination Certificate

active

11331192

ABSTRACT:
A voltage level detector (8) which activates itself by monitoring the voltage level (VSTB) at a standby pin (5) during power-up of an audio power amplifier (10), and can detect fault conditions of an output block (2), such as a short to ground at an output terminal (3), in contrast to conventional protection circuits that can operate only after power-up.

REFERENCES:
patent: 3898532 (1975-08-01), Frank
patent: 4053996 (1977-10-01), Schertz et al.
patent: 4355341 (1982-10-01), Kaplan
patent: 4402029 (1983-08-01), Fujita
patent: 5543760 (1996-08-01), Honda et al.
patent: 5847610 (1998-12-01), Fujita
patent: 6525605 (2003-02-01), Hu et al.
patent: 6-350349 (1994-12-01), None
patent: 6-350350 (1994-12-01), None

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