Amplifier with cross-over current control

Details Amplifier with cross-over current control Amplifier with cross-over current control

1979-11-23

1981-10-27

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330268, H03F 330

Patent

active

042976448

ABSTRACT:
A complementary field-effect transistor (FET) amplifier with means for controlling peak cross-over current. A substantially constant current is established in the drain-source conduction paths of a pair of reference transistors by degenerative feedback from the conduction paths to the respective gate electrodes thereof; wherein the reference transistors have similar characteristics to the respective amplifier transistors. The resulting sum of the gate-to-source voltages of the reference transistors is used to apply a bias voltage between the gate electrodes of the transistors in the FET amplifier so that the sum of the gate-to-source voltages of the amplifier transistors is equal to the sum of the respective gate-to-source voltages of the reference transistors during the cross-over current condition. Cross-over current is thereby limited to a predetermined value proportional to the substantially constant current established through the reference transistors.

REFERENCES:
patent: 3914702 (1975-10-01), Gehweiler
patent: 3997849 (1976-12-01), Thommen
patent: 4038607 (1977-07-01), Schade
patent: 4159450 (1979-06-01), Hoover

Affiliated with

Also associated with

Rating

Amplifier with cross-over current control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amplifier with cross-over current control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier with cross-over current control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-281793