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| VQ7254N6资料 | |
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VQ7254N6 PDF Download |
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File Size : 105 KB
Manufacturer:SIL Description: During power-up and power-down, or in the event of overcurrent (OI) or overtemperture (OT), the latch inhibits the PWM gate, deactivating the gate drive circuits and shutting off the inverter. The relay control circuit delivers an on/off signal via an opto-isolator to the relay driver which controls the relay (K1). The relay contact is open during power-up, inserting the resistor R in series with the DC bus capcitor and limiting the capacitor charging current. In normal operation, the relay contact is closed. If the AC line voltage falls below 300V or if one input phase is lost, or if the DC line voltage falls to less than 82% of the peak line voltage, the relay contact opens. The UV circuit senses the voltage of the local power supply, and sends a signal via an opto-isolator to the latch in the event of undervoltage. The UV circuit normally activates the latch only during power-up and power-down, preventing the IGBTs from being turned on when the local power supply voltage is too low for proper IGBT switching. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：VQ7254N6 厂 家：SIL 封 装：93+ 批 号：50 数 量： 说 明： |
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运 费： 所在地： 新旧程度： |
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| 联系人：张小姐、 颜先生13661569158 |
| 电 话：400-878-9158,021-54286636 |
| 手 机：13661569158 |
| QQ：12230627,596815151,531081618 |
| MSN： |
| 传 真：021-54286636 |
| EMail：susumu@susumu.com.cn |
| 公司地址： 上海市古楼公路348弄25号 |
建议使用分辨率:1024*768