Digital power amplifier

Details Digital power amplifier Digital power amplifier

1991-03-04

1992-06-30

Mullins, James B.

Amplifiers

Modulator-demodulator-type amplifier

330251, H03F 338

Patent

active

051266849

ABSTRACT:
In a digital power amplifier, a high frequency linear modulated driving signal is used to control a bridge circuit arrangement of transistors. By inputting this high frequency linear modulated signal to a bridge arrangement of driving comparators, a controlled dead band is created and a balanced output is obtained from the bridge circuit arrangement of transistors. The balanced output signal is then fed through a filter circuit for demodulation. An alternative embodiment of the invention employs a bridge circuit consisting of transistors connected in parallel for improved power handling capabilities.

REFERENCES:
patent: 3579132 (1971-05-01), Ross
patent: 4146828 (1979-03-01), Ross et al.
patent: 4689819 (1987-08-01), Killion

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