发明专利
TW200922100A 變頻器之軟起動保護偵測裝置及方法 FAULT-SENSING AND PROTECTING APPARATUS FOR SOFT START CIRCUIT OF INVERTER AND METHOD FOR THE SAME
审中-公开
基本信息:
- 专利标题： 變頻器之軟起動保護偵測裝置及方法 FAULT-SENSING AND PROTECTING APPARATUS FOR SOFT START CIRCUIT OF INVERTER AND METHOD FOR THE SAME
- 专利标题（英）：Fault-sensing and protecting apparatus for soft start circuit of inverter and method for the same
- 专利标题（中）：变频器之软起动保护侦测设备及方法 FAULT-SENSING AND PROTECTING APPARATUS FOR SOFT START CIRCUIT OF INVERTER AND METHOD FOR THE SAME
- 申请号：TW096141490 申请日：2007-11-02
- 公开(公告)号：TW200922100A 公开(公告)日：2009-05-16
- 发明人： 陳郁方 CHEN, YU FANG
- 申请人： 台達電子工業股份有限公司 DELTA ELECTRONICS, INC.
- 申请人地址： 桃園縣龜山工業區興邦路31之1號
- 专利权人： 台達電子工業股份有限公司 DELTA ELECTRONICS, INC.
- 当前专利权人： 台達電子工業股份有限公司 DELTA ELECTRONICS, INC.
- 当前专利权人地址： 桃園縣龜山工業區興邦路31之1號
- 代理人： 謝佩玲
- 主分类号： H02M
- IPC分类号： H02M
Fault-sensing and protecting apparatus for soft start circuit of inverter and method for the same are proposed. The soft start circuit of inverter includes a soft-starting resistor and a relay. The relay has a normally-open end connected to the soft-starting resistor in parallel. The fault-sensing and protecting apparatus for soft start circuit includes a central processing unit (CPU) and a photo coupler. The CPU is electrically connected to the inverter and an input end of the relay, respectively. The photo coupler includes a light emitting diode (LED) and a photo transistor. The LED is first electrically connected to a resistor in series and then electrically connected to the soft-starting resistor in parallel. The photo transistor is electrically connected to CPU. After the inverter starts to work, the CPU cuts out voltage applied to the inverter if the LED is lit. Therefore, the inverter can be prevented from damage.