High efficiency class D amplifier with reduced generation of EMI

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United States of America Patent

PATENT NO 9866187
SERIAL NO

14715879

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Abstract

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A class-D amplifier includes a signal processing block. The signal processing block generates a first processed signal representing a difference between a first differential signal and a second differential signal, when a duty cycle of the first differential signal is greater than that of the second differential signal. The signal processing block generates the first processed signal representing a reference DC level, when the duty cycle of the first differential signal is less than that of the second differential signal. A second processed signal representing a difference between the second differential signal and the first differential signal is generated when the duty cycle of the second differential signal is greater than that of the first differential signal, and the second processed signal representing the reference DC level is generated when the duty cycle of the second differential signal is less than that of the first differential signal.

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Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS (SHENZHEN) R&D CO LTDSHENZHEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Hong Wu Shenzhen, CN 9 24
Liu, Qi Yu Shenzhen, CN 11 80

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