Pulse-width modulating amplifier circuit

Details Pulse-width modulating amplifier circuit Pulse-width modulating amplifier circuit

1989-12-14

1991-02-12

Mottola, Steven

Amplifiers

Modulator-demodulator-type amplifier

330251, H03F 338

Patent

active

049927493

ABSTRACT:
A pulse-width modulating amplifier circuit includes two bootstrap circuits for increasing the power voltage to drive circuits to prevent a drive voltage shortage. One bootstrap circuit is connected from the output of the a power amplifier to a drive circuit. The other bootstrap circuit is connected from the output of a filter demodulator to a drive circuit.

REFERENCES:
patent: 3384830 (1968-05-01), De Niet
patent: 4173739 (1979-11-01), Yoshida
patent: 4178556 (1979-12-01), Attwood
patent: 4463318 (1984-07-01), Kaplan
patent: 4743860 (1988-05-01), Dziagwa
patent: 4949048 (1990-08-01), Tokumo et al.
Patents Abstracts of Japan, Sep. 28, 1984, vol. 8, No. 213.
Design Considerations in Class D MOS Power Amplifiers, John Murray et al., in Transactions on Industrial Electronics & Control Instrumentation, vol. IECI-26, No. 4, Nov. 1979, pp. 211-218.

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