Class-D amplifier

Details Class-D amplifier Class-D amplifier

2011-02-15

2011-02-15

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including class d amplifier

C330S20700P, C330S262000

Reexamination Certificate

active

07889003

ABSTRACT:
The invention describes a power amplifier comprising a first transistor (MHS) having a first control terminal and a first main current path coupled between a first supply terminal (Vdd) and a first node (VH), a second transistor (MLS) having a second control terminal and a second main current path coupled between a second supply terminal (Vss) and a second node (VL), a first controlled resistor (MHC) coupled between the first node and an output node (Vout) of the amplifier, a second controlled resistor (MLC) coupled between the second node and the output node (Vout) of the amplifier, the first transistor being controlled by a first driver comprising a level shifting circuit, and the second transistor being controlled by a second driver including a time delaying circuit.

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patent: 7315151 (2008-01-01), Thompson et al.
patent: 2003/0184379 (2003-10-01), Ivanov et al.
patent: 2005/0218988 (2005-10-01), Berkhout
patent: 1003279 (2000-05-01), None

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