Design of protection module of intrinsic safety power supply based on LT4356
In view of problems of simple protection function, low conversion efficiency, poor anti-interference ability and low intrinsic safety current existed in current protection module of intrinsic safety power supply, a protection module of intrinsic safety power supply based on surge suppressor LT4356 w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2014-12-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.12.021 |
| Summary: | In view of problems of simple protection function, low conversion efficiency, poor anti-interference ability and low intrinsic safety current existed in current protection module of intrinsic safety power supply, a protection module of intrinsic safety power supply based on surge suppressor LT4356 was designed. Function realization principle of the module was analyzed, including soft start, over-voltage, over-current and voltage sag protection, protection locking. The module with output voltage is DC5-18 V, the maximum current is 850-1 000 mA and fault protection time within 2 μs, which meets intrinsic safety requirements of GB 3836.4-2010. |
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| ISSN: | 1671-251X |