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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wang Zhiqiang Wang Li Yan Jie |
| Copyright Year | 2005 |
| Description | Author affiliation: Coll. of Autom. Eng., Nanjing Univ. of Aeronaut. & Astronautics, China (Wang Zhiqiang; Wang Li; Yan Jie) |
| Abstract | Solid-state switch is a no-contactor switch. It is used in connecting and disconnecting loads, fast restricting the increasing current in the case of over-load and short-circuit. However, surge-current will be produced when solid-state switch is turned on especially in capacitive loads and spike-voltage is induced between the drain and source of MOSFET in inductive loads when solid-state switch is turned off. Surge-current and spike-voltage are the main reasons resulting in the malfunctioning of MOSFET and the reducing solid-state switch's reliability. In this paper, a soft-starting and soft-turning-off circuit of DC solid-state switch is introduced. Soft-starting is used to restrain the impact of the surge-current when solid-state switch is turned on. Soft-turning-off is used to suppress the spike-voltage of inductive loads between the drain and source of MOSFET when solid-state switch is turned off. Based on RC nets, this circuit is simple and practical. The experimental results show that the soft-starting and soft-turning-off circuit improves the ability of carrying loads and has a strong controlling ability. The designing idea and circuit structure presented in this paper can be applied to any switch-controlled circuit based on solid-state device. |
| Sponsorship | China Electrotechnical Soc. Chinese Soc. for Electr. Eng. Natural Sci. Found. of China IEEE Beijing Sect. Korean Inst. of Electr. Eng. Inst. of Electr. Eng. of Japan |
| Starting Page | 2422 |
| Ending Page | 2425 |
| File Size | 1345699 |
| Page Count | 4 |
| File Format | |
| ISBN | 7506274078 |
| DOI | 10.1109/ICEMS.2005.203007 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-09-27 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | International Academic Publishers/World Publishing Corporation |
| Subject Keyword | Solid state circuits Switching circuits Switches MOSFET circuits Surge protection Joining processes Solid modeling Voltage Drives Educational institutions |
| Content Type | Text |
| Resource Type | Article |
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