Transistor power amplifier circuit

Details Transistor power amplifier circuit Transistor power amplifier circuit

1979-06-26

1985-03-05

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 98, 330207P, H02H 720

Patent

active

045034788

ABSTRACT:
Two output transistors constituting a push-pull output amplifier circuit are connected in series between a power supply and a grounded point, and an output terminal is disposed at a point where the two output transistors are commonly connected. An operation detector circuit detects the operation of one output transistor. A level detector circuit detects a d-c voltage level at the output terminal. The two output transistors are driven by a drive circuit in a push-pull manner. The output of the operation detector circuit and the output of the level detector circuit control the drive circuit via a control circuit. When the operation detector circuit detected the fact that the operation of one output transistor has deviated beyond a predetermined detection level, the control circuit works to confine the operation of the abovementioned output transistor within a predetermined restriction level via the drive circuit. The power loss in the restriction level is smaller than the power loss in the detection level. During a period in which the output terminal is short-circuited to the grounded point in a d-c manner, the level detector circuit so controls the control circuit that the operation of the abovementioned one output transistor is confined within the restriction level.

REFERENCES:
patent: 3441864 (1969-04-01), Hafler
patent: 3691427 (1972-09-01), Honda et al.
patent: 3835412 (1974-09-01), Honda et al.
patent: 4053996 (1977-10-01), Schertz et al.
patent: 4146847 (1979-03-01), Otao et al.
patent: 4184187 (1980-01-01), Suzuki

Affiliated with

Also associated with

Rating

Transistor power amplifier circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transistor power amplifier circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transistor power amplifier circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1737711