
基本信息:
- 专利标题: AMPLIFIER CURRENT CONSUMPTION CONTROL
- 专利标题(中):放大器电流消耗控制
- 申请号:US15156675 申请日:2016-05-17
- 公开(公告)号:US20160261245A1 公开(公告)日:2016-09-08
- 发明人: Gerhard PFAFFINGER , Franz LORENZ , Stefan ZUCKMANTEL , Markus CHRISTOPH
- 申请人: Harman Becker Automotive Systems GmbH
- 优先权: EP10196153.0 20101221
- 主分类号: H03G3/20
- IPC分类号: H03G3/20 ; H03F3/181
摘要:
The audio amplifier includes a variable gain amplifier receiving the input audio signal and providing the output signal, whereby the output signal corresponds to the input signal amplified by a limiter gain. The audio amplifier further includes a limiter gain calculation unit, thus the input signal is amplified by the limiter gain. A control unit receives a signal representative of the input signal and is configured to estimate, based on a mathematical model, the input current or the total output current of the audio amplifier thus providing an estimated current signal corresponding to (and resulting from) the output signal, whereby the limiter gain calculation unit is configured to calculate, dependent on the estimation, the limiter gain such that the actual input current or the total output current of the audio amplifier does not exceed a threshold current value.
摘要(中):
音频放大器包括可变增益放大器,其接收输入音频信号并提供输出信号,由此输出信号对应于通过限制器增益放大的输入信号。 音频放大器还包括限幅器增益计算单元,因此输入信号被限幅器增益放大。 控制单元接收表示输入信号的信号,并且被配置为基于数学模型来估计音频放大器的输入电流或总输出电流,从而提供对应于输出(并由其产生)的估计电流信号 信号,由此限制器增益计算单元被配置为根据估计来计算限制器增益,使得音频放大器的实际输入电流或总输出电流不超过阈值电流值。
公开/授权文献:
- US10008993B2 Amplifier current consumption control 公开/授权日:2018-06-26