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热词
    • 2. 发明授权
    • Transmitter, interface device, and car mounted communication system
    • 发射机,接口设备和车载通信系统
    • US08410827B2
    • 2013-04-02
    • US13113235
    • 2011-05-23
    • Yuji Yano
    • Yuji Yano
    • H03K3/00
    • H03K19/00361
    • A transmitter includes a capacitor from one end of which a charge voltage is derived; a first constant current source to generate a charge current for the capacitor; a second constant current source to generate a discharge current for the capacitor; a charge/discharge controller to perform charge/discharge control of the capacitor based on a logic level of a transmission input signal and a comparison result between the charge voltage and a reference voltage; an output stage to generate the transmission output signal, wherein a slew rate of which is set in response to the charge voltage, and wherein an amplitude of the transmission output signal is set in response to an output side power source voltage; a reference voltage generator to fluctuate the reference voltage depend on the output side power source voltage; and a constant current controller to fluctuate a current value of the charge current and the discharge current depend on the reference voltage.
    • 发射机包括从其一端导出充电电压的电容器; 产生电容器的充电电流的第一恒流源; 用于产生电容器的放电电流的第二恒流源; 充电/放电控制器,用于基于发送输入信号的逻辑电平和充电电压与参考电压之间的比较结果来执行电容器的充电/放电控制; 产生发送输出信号的输出级,其中,根据所述充电电压设定其转换速率,并且响应于所述输出侧电源电压而设定所述发送输出信号的振幅; 参考电压发生器使参考电压波动取决于输出侧电源电压; 以及恒定电流控制器,用于使充电电流的当前值波动,并且放电电流取决于参考电压。