Amplifying circuit

Details Amplifying circuit Amplifying circuit

2006-10-19

2009-10-13

Pascal, Robert (Department: 2817)

Amplifiers

Combined with automatic amplifier disabling switch means

C330S009000

Reexamination Certificate

active

07602237

ABSTRACT:
In an amplifying circuit, a first and a second switches are provided between an input terminal and output terminal of coupling capacitor and amplifier, and these switches are set in OFF state in a power-down state, and the second switch is turned on for a specified period when changed over to ordinary operation, and the capacitor is charged to a bias voltage corresponding to direct-current operating point, and then the second switch is turned off, and the first switch is turned on, and the mode is shifted to the ordinary operating state. Therefore, in a power-down state, a popping noise can be suppressed without resort to a charger for preliminarily charging the capacitor in a power-down state, and increase of current consumption due to charger is eliminated.

REFERENCES:
patent: 7113031 (2006-09-01), Rabary et al.
patent: 7164312 (2007-01-01), Singh et al.
patent: 7259619 (2007-08-01), Chang et al.
patent: 2004-88419 (2004-03-01), None

Affiliated with

Also associated with

Rating

Amplifying 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 Amplifying circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifying circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4079690