Class D Amplifier Having PWM Circuit with Look-up Table,申请号US20070968101-传众专利搜索

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发明名称	Class D Amplifier Having PWM Circuit with Look-up Table
摘要	A class D amplifier includes a noise-shaping modulator, a pulse width modulator, and a pulse amplifier. The noise-shaping modulator receive a pulse code modulated (PCM) signal and produces an oversampled PCM signal. The pulse width modulator produce a pulse width modulated (PWM) signal from the oversampled PCM signal. The pulse amplifier amplifies the PWM signal to produce an amplified PWM signal. The PWM uses a lookup table to convert from PCM to PWM. A compensation circuit optimizes amplifier performance. An optional demodulator filter converts the amplified PWM signal to an analog signal. The amplifier is ideal for integrated audio applications.
申请公布号	US2009167431(A1)	申请公布日期	2009.07.02
申请号	US20070968101	申请日期	2007.12.31
申请人	CHIPLDEA MICROELECTRONICA S.A.	发明人	GUILHERME DAVID FILIPE CORREIA;DUARTE JORGE MIGUEL ALVES SILVA
分类号	H03F3/393;H03F3/217	主分类号	H03F3/393
代理机构		代理人
主权项
地址

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