Single supply direct drive amplifier

Details Single supply direct drive amplifier Single supply direct drive amplifier

2007-02-27

2007-02-27

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

C330S296000

Reexamination Certificate

active

11039386

ABSTRACT:
A driver amplifier operative from a single DC voltage supply, coupled directly to the output load without the need for DC coupling capacitors used for preventing DC reaching the output load. An onboard power supply generates a negative voltage rail that powers the output amplifiers, allowing driver amplifier operation from both positive and negative rails. Since the amplifiers can be biased at ground potential (0 volts), no significant DC voltage exists across the load and the need for DC coupling capacitors is eliminated.

REFERENCES:
patent: 5289137 (1994-02-01), Nodar et al.
patent: 5666355 (1997-09-01), Huah et al.
patent: 6011440 (2000-01-01), Bell et al.

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