Design of a novel fast turn-off circuit of transient electromagnetic transmitter
In view of problem that turn-off time of emission current of transient electromagnetic transmitter is overlong caused by parasitic inductance of the transmitter coils, a novel fast turn-off circuit was designed. During the decline of transmitting current, the fast turn-off circuit uses transistors t...
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2016-11-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2016.11.019 |
| Summary: | In view of problem that turn-off time of emission current of transient electromagnetic transmitter is overlong caused by parasitic inductance of the transmitter coils, a novel fast turn-off circuit was designed. During the decline of transmitting current, the fast turn-off circuit uses transistors to provide an additional new discharge circuit, which takes advantages of its large resistance and low discharge time constant to realize quick turn-off of the transmitting current. The results of simulation and experiment show that the novel circuit can decrease the turn-off time of transient electromagnetic transmitter effectively with high stability. |
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| ISSN: | 1671-251X |