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    • 12. 发明公开
    • 리졸버 신호 처리 장치
    • RESOLVER信号处理装置
    • KR1020070093802A
    • 2007-09-19
    • KR1020070005999
    • 2007-01-19
    • 오므론 가부시키가이샤
    • 가와구치히로시
    • G01D5/245G01D5/14
    • G01D5/2046G01D5/2073G01D5/24457
    • A resolver signal processing device is provided to realize a simple process step by generating a DMA transfer command when an excitation signal is transmitted to the resolver, thereby contributing to increase in speed and reduce in cost. A resolver signal processing device includes a main control unit(1), a resolver(2), and an input/output unit(3) connected between the main control unit and the resolver. The main control unit has a calculation unit(10) and a memory(11) to memorize sine wave data. The sine wave data stored at the memory is duty ratio data having a different value in response to a waveform level. The main controller further has a DMA controller(12), a PWM signal generation circuit(13), and first to third AD converters(14,15,16). The DMA controller performs a control for DMA transmitting the sine wave data stored at the memory by only one period. The PWM signal generation circuit generates a PWM signal corresponding to the sine wave data outputted from the DMA controller. The DMA controller performs the DMA transfer of an excitation signal from an amended phase and detects the rotational angle based on the extreme values.
    • 解算器信号处理装置被提供用于当激励信号被发送到旋转变压器时通过产生DMA传输命令来实现简单的处理步骤,从而有助于提高速度并降低成本。 解算器信号处理装置包括连接在主控制单元和旋转变压器之间的主控制单元(1),旋转变压器(2)和输入/输出单元(3)。 主控制单元具有存储正弦波数据的计算单元(10)和存储器(11)。 存储在存储器中的正弦波数据是响应于波形电平而具有不同值的占空比数据。 主控制器还具有DMA控制器(12),PWM信号产生电路(13)和第一至第三AD转换器(14,15,16)。 DMA控制器执行DMA传输仅在存储器中存储的正弦波数据仅一个周期的控制。 PWM信号产生电路产生对应于从DMA控制器输出的正弦波数据的PWM信号。 DMA控制器执行来自修正相位的激励信号的DMA传输,并根据极值检测旋转角度。