On basis of LR circuit transition process analysis, the paper describes measuring method of zero time factor for transformer wire-wound resistor with specific exciting supply.
本文在分析LR电路过渡过程的基础上，讨论了以特定激励源实现变压器绕组电阻零时间常数测量的方法。
2
The principle of the drive and protection circuits is introduced, the method of measuring the response time of the protection circuit is also introduced.
介绍了驱动电路和快速保护电路的原理，及保护电路响应时间的测量方法。
3
A kind of totally digitized temperature measuringcircuit consisted of 555 time base integrated circuit and MCU and its operation principle are introduced.