Digital power amplifier

Details Digital power amplifier Digital power amplifier

2006-01-31

2006-01-31

Nguyen, Khanh V. (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S20700P, C330S251000

Reexamination Certificate

active

06992527

ABSTRACT:
A digital power amplifier has first and second switches, between a high potential power line and a low potential power line, which operate complementarily. When switching an ON switch, dead time is provided to control power to a low-pass filter. In a switching section, the first switch, a first coil, a second coil and the second switch are connected in series, between the high and low potential power lines. The switching section includes a first high-speed diode having a cathode connected to the high potential power line and an anode connected to a node between the second coil and the second switch, and a second high-speed, diode having a cathode connected to a node between the first switch and the first coil and an anode connected to the low potential power line. The node between the first coil and the second coil is connected to the low-pass filter side.

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