Apparatus for protecting power amp module

Details Apparatus for protecting power amp module Apparatus for protecting power amp module

1996-12-23

1998-11-10

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including protection means

330207P, 455117, H03F 152

Patent

active

058349782

ABSTRACT:
A power amp module protecting apparatus of a mobile wireless phone having: a power supply unit for supplying driving power to a power amp module; a switching unit, connected between the power supply unit and an overcurrent detector, for performing a switching action in accordance with a logic level of a switching control signal output from a controller and a logic level of an overcurrent detecting signal from the overcurrent detector; the overcurrent detector, connected between the switching unit and the power amp module, for outputting an overcurrent detecting signal having a high logic level in response to the detection of an overcurrent from the power supply unit; and the controller for outputting the switching control signal to switch on the switching unit when no overcurrent is detected, for maintaining the switching unit in an off state in response continued receipt of the overcurrent detecting signal of high logic level output from the overcurrent detector and outputting the switching control signal to switch on the switching unit, from a switched-off state, within a predetermined time.

REFERENCES:
patent: 4427951 (1984-01-01), Amada et al.
patent: 4878034 (1989-10-01), Gross et al.
patent: 5128629 (1992-07-01), Trinh
patent: 5365201 (1994-11-01), Shih et al.

Affiliated with

Also associated with

Rating

Apparatus for protecting power amp module does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for protecting power amp module, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for protecting power amp module will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1520339