Class D amplifier

Details Class D amplifier Class D amplifier

2008-06-10

2008-06-10

Pascal, Robert J. (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S20700P, C330S251000

Reexamination Certificate

active

07385444

ABSTRACT:
The class D amplifier comprises a voltage control current source circuit for current-converting the voice voltage signal Vsin of the input into two signals with different polarities, two capacitance elements for integration where the electric charges of the each current-converted signal and the feedback signal are stored respectively, two hysteresis comparators for PWM conversion for comparing the potentials of the two capacitance elements for integration and a reference potential Vcom respectively, two output buffers for amplifying the outputs thereof respectively, and two constant current source feedback circuits for feeding back the output thereof respectively.

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Korean Office Action dated Jul. 24, 2006, with partial English transation.

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