公开(公告)号：EP2477007A1

公开(公告)日：2012-07-18

申请号：EP10815225.7

申请日：2010-07-28

申请人： Kabushiki Kaisha Yaskawa Denki

发明人： IWAHASHI, Koji ,  RYU, Hidetoshi ,  SUESHIMA, Satoshi

IPC分类号： G01D5/249 ,  H02M7/48 ,  H02P25/04 ,  H02P27/06

CPC分类号： G06F1/12 ,  G05B19/0423 ,  G05B19/414 ,  G05B2219/33093 ,  G05B2219/33157 ,  G05B2219/33187 ,  G05B2219/33254 ,  G05B2219/34225 ,  H02M7/48

摘要： An object is to provide an interface circuit, an inverter device, an inverter system, and a transmitting and receiving method that are low-cost and can be developed in a shorter period of time.
An interface circuit 7 includes a general-purpose CPU 8 configured to transmit a clock to a serial encoder 2 with which bidirectional serial communication of clock synchronization type is to be performed, the CPU 8 being configured to transmit and receive data to and from the serial encoder 2; and an additional circuit 20 configured to detect a start bit of reception data transmitted from the serial encoder 2. The general-purpose CPU 8 starts counting the number of bits of the reception data in response to a detection signal from the additional circuit 20, the detection signal indicating the detection of the start bit. The CPU 8 stops transmitting the clock to the serial encoder 2 upon completion of counting a predetermined number of bits of the reception data.

摘要翻译： 本发明的目的是提供一种低成本且可在较短时间内开发的接口电路，逆变器装置，逆变器系统以及发射和接收方法。 接口电路7包括通用CPU8，其被配置为向串行编码器2发送时钟，串行编码器2将执行与时钟同步类型的双向串行通信，CPU 8被配置为向串行编码器2发送和从串行数据发送数据 编码器2; 以及被配置为检测从串行编码器2发送的接收数据的起始位的附加电路20.通用CPU8响应于来自附加电路20的检测信号开始对接收数据的位数进行计数， 检测信号指示检测到起始位。 在完成对接收数据的预定数量的比特的计数之后，CPU 8停止向串行编码器2发送时钟。