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A fully automatic critical slew rate tester for thyristors

机译:晶闸管的全自动临界压摆率测试仪

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This paper describes a critical slew rate (dv/dt) test method for thyristors (p-n-p-n switches). A voltage-controlled ramp function generator has been developed with an adjustable slew rate. The maximum voltage is 400 V and the maximum slew rate is 3000 V/μs. For high-speed measurements, a new method, denoted as the after-firing method, is developed which reduces the measurement time down to between 1/100 and 1/1000 of the conventional method time. Critical slew rates over the range of 1–3000 V/μs can be measured using this method in about 100 ms.
机译:本文介绍了晶闸管(p-n-p-n开关)的临界压摆率(dv / dt)测试方法。已开发出具有可调压摆率的压控斜坡函数发生器。最大电压为400 V,最大压摆率为3000 V /μs。对于高速测量,开发了一种新的方法,称为后点火方法,可以将测量时间减少到传统方法时间的1/100到1/1000之间。使用这种方法可以在大约100 ms内测量1–3000 V /μs范围内的临界压摆率。

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