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公开(公告)号：EP2944024A2
公开(公告)日：2015-11-18
申请号：EP14703653.7
申请日：2014-01-09
摘要： A multi-channel switchmode audio amplifier is configured by a programmed processor such that each channel drives separate loads, is connected in parallel or is configured in a bridge-tied mode as well as combinations thereof. In one embodiment, amplifier channels that are connected in parallel have power amplifiers that are driven with signals from a single modulator. A feedback circuit and error amplifier from one channel controls the modulated signal that is applied to each parallely connected amplifier channel. Current feedback circuits for parallely connected amplifier channels are eliminated by tightly controlling the timing of switching in the power amplifier output stages.
摘要翻译： 多通道开关模式音频放大器由编程的处理器配置，使得每个通道驱动单独的负载，并联连接或被配置为桥接模式以及它们的组合。 在一个实施例中，并联的放大器通道具有由来自单个调制器的信号驱动的功率放大器。 来自一个通道的反馈电路和误差放大器控制施加到每个平行连接的放大器通道的调制信号。 通过紧密控制功率放大器输出级的切换时序，消除了并联连接的放大器通道的电流反馈电路。
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公开(公告)号：EP2943756A1
公开(公告)日：2015-11-18
申请号：EP11733222.1
申请日：2011-01-07
IPC分类号： G01D5/26
摘要： Methods and apparatus are provided for a control device and control device operation. In one embodiment a control device includes a slider configured to support a control knob, a rack coupled to the slider and configured to linearly displace the slider. The rack including slots. The control device may further include a drive element configured to displace the rack and position the control knob, and an optical detection module configured to detect position of the control knob based on one or more optical signals detected relative to slots of the rack. According to another embodiment, a control console is provided including control devices.
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