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公开(公告)号:US20140077877A1
公开(公告)日:2014-03-20
申请号:US14027109
申请日:2013-09-13
Applicant: NXP B.V.
Inventor: Koen Buisman , Mark Pieter van der Heijden , Mustafa Acar , Leo de Vreede
IPC: H03F3/217
CPC classification number: H03F3/2171 , H03F3/2176
Abstract: An amplifier circuit comprising a driver (204, 304) configured to provide a switched mode input signal, a switching mode power amplifier (206, 306) configured to receive the switched mode input signal and provide an output signal for an external load (210, 310); and a sensor (208, 308) configured to sense the impedance of the external load (210, 310) The driver is configured to set the duty cycle of the switched mode input signal in accordance with the sensed impedance of the external load (210, 310).
Abstract translation: 一种放大器电路,包括被配置为提供开关模式输入信号的驱动器(204,304),被配置为接收所述开关模式输入信号并提供用于外部负载的输出信号的开关模式功率放大器(206,306) 310); 以及被配置为感测外部负载(210,310)的阻抗的传感器(208,308)。驱动器被配置为根据感测到的外部负载的阻抗来设置开关模式输入信号的占空比, 310)。
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公开(公告)号:US09118283B2
公开(公告)日:2015-08-25
申请号:US14027109
申请日:2013-09-13
Applicant: NXP B.V.
Inventor: Koen Buisman , Mark Pieter van der Heijden , Mustafa Acar , Leo de Vreede
IPC: H03F3/217
CPC classification number: H03F3/2171 , H03F3/2176
Abstract: An amplifier circuit comprising a driver (204, 304) configured to provide a switched mode input signal, a switching mode power amplifier (206, 306) configured to receive the switched mode input signal and provide an output signal for an external load (210, 310); and a sensor (208, 308) configured to sense the impedance of the external load (210, 310) The driver is configured to set the duty cycle of the switched mode input signal in accordance with the sensed impedance of the external load (210, 310).
Abstract translation: 一种放大器电路,包括被配置为提供开关模式输入信号的驱动器(204,304),被配置为接收所述开关模式输入信号并提供用于外部负载的输出信号的开关模式功率放大器(206,306) 310); 被配置为感测外部负载(210,310)的阻抗的传感器(208,308)。驱动器被配置为根据感测到的外部负载的阻抗来设置开关模式输入信号的占空比, 310)。
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