Method of controlling temperature in push-pull audio output circ

Details Method of controlling temperature in push-pull audio output circ Method of controlling temperature in push-pull audio output circ

1987-06-18

1988-12-20

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including protection means

330146, 330207P, H03F 152

Patent

active

047927666

ABSTRACT:
To permit cooling of transistor push-pull bridge-type audio end stages in car radios, where heat dissipation and cooling of components is difficult to achieve, without entire interruption of signals being amplified, the temperature of a heat sink (HS) is being sensed by a temperature sensor (14), and, if a predetermined level is exceeded as determined, for example, by a threshold circuit (15), one of the bridge arms formed by a transistor (10) is controlled to become saturated, thereby grounding-out the applied signal, so that a loudspeaker (6) will operate at only half voltage and hence 1/4 power, to thereby permit cooling of components, while providing some reproduction of introduced audio signals from an audio input terminal (11).

REFERENCES:
patent: 4611180 (1986-09-01), Stanley

Affiliated with

Also associated with

Rating

Method of controlling temperature in push-pull audio output circ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of controlling temperature in push-pull audio output circ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling temperature in push-pull audio output circ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1911451