Amplifiers – Modulator-demodulator-type amplifier
Patent
1989-06-08
1990-12-25
Mottola, Steven
Amplifiers
Modulator-demodulator-type amplifier
330251, H03F 338
Patent
active
049806491
ABSTRACT:
The switching power amplifier has a low number of components, short response time and extremely high efficiency. The amplifier comprises a generator circuit providing an AC signal. A diode bridge rectifies the AC signal and provides two signals substantially equal to zero or having opposite polarities. Two inductors are coupled to the amplifier output for providing the output signal. Two switches selectively apply the rectified signals to the inductors in response to the amplifier input signal. Two input capacitors, preferably having small values, are separately coupled to the rectified signals for storing DC voltages. Two or three rectifiers apply flyback voltages of the inductors to the input capacitors. An output capacitor stores the amplifier output signal.
REFERENCES:
patent: 4326170 (1982-04-01), Levy
patent: 4571551 (1986-02-01), Trager
patent: 4763080 (1988-08-01), Gukzynski
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