专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20120236617A1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：US20120236617A1
公开(公告)日：2012-09-20
申请号：US13513383
申请日：2011-05-11
申请人： Yoshiyuki Hamanaka , Koichi Sakata
发明人： Yoshiyuki Hamanaka , Koichi Sakata
IPC分类号： H02M7/5387
CPC分类号： H02M1/32 , H02J7/0065 , H02M1/08 , H02M7/53873
摘要： A motor control apparatus 1 includes an inverter 10, a smoothing capacitor 11, power-converting drivers 120 to 125, a power-converting power supply circuit 13, and discharging drivers 140 and 141. The inverter 10 includes switching circuits 100 to 102 comprised of series-connected two IGBTs. The power-converting drivers 120 to 125 apply an output voltage of the power-converting power supply circuit 13 to the switching circuits 120 to 125 to drive them, thus performing power conversion. The discharging drivers 140 and 141 simultaneously turn on IGBTs 100a and 100b of the switching circuit 100 to discharge the smoothing capacitor 11 when the output voltage of the power-converting power supply circuit 13 is equal to or lower than a threshold. This prevents discharging of the smoothing capacitor during power converting operations.
摘要翻译：电动机控制装置1包括逆变器10，平滑电容器11，电力转换驱动器120〜125，电力转换电源电路13以及放电驱动器140,141。逆变器10包括：开关电路100〜102，包括：串联两个IGBT。电力转换驱动器120至125将电力转换电源电路13的输出电压施加到开关电路120至125以驱动它们，从而执行电力转换。当电力转换电源电路13的输出电压等于或低于阈值时，放电驱动器140和141同时接通开关电路100的IGBT 100a和100b以对平滑电容器11进行放电。这防止在电力转换操作期间平滑电容器的放电。

IPRDB

热门服务

关于我们

友情链接

联系方式