JVC RX-D402 manual Hybrid Feedback Digital Amplifier, In +, the precision of PWM signal generation

Hybrid Feedback Digital Amplifier

JVC technologies for satisfyingEvolutiontheofTHXHybridUltra2FeedbackcertificationDigital Amplifier (1)

Evolution of Hybrid Feedback Digital Amplifier (1)

RX-D702 RX-D402

*Also applies to RX-D401

Hybrid Feedback Digital Amplifier

Use of two feedback loops eliminates the noise generated at each process:

Digital feedback -- for significantly improving the precision of PWM signal generation.

Analog feedback -- for “brushing up” the waveform of the analog signal at output to match the original.

1	Digital feedback -- for significantly improving
	the precision of PWM signal generation

IN +

-

PWM		Pre-	Demodulator
	PWM	Driver	(LPF)
Modulator
Phase Shift
Master Clock

Analog feedback -- for “brushing up” the waveform of the analog signal at output to match the original

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