POWER-ON/OFF DRIVE CIRCUIT AND METHOD FOR CONTROLLING POWER-ON/OFF DRIVE CIRCUIT |
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| 申请号 | US16010509 | 申请日 | 2018-06-17 | 公开(公告)号 | US20180301306A1 | 公开(公告)日 | 2018-10-18 |
| 申请人 | HUAWEI TECHNOLOGIES CO., LTD.; | 发明人 | Jing YANG; Peng ZHANG; | ||||
| 摘要 | The present invention discloses a power-on/off drive circuit and a method for controlling the power-on/off drive circuit, and belongs to the field of electronic technologies. The power-on/off drive circuit includes a load, a switch circuit, a relay, and a single-source drive circuit; one end of a coil in the relay and a first input end of the single-source drive circuit are separately connected to a positive electrode of a second external power supply, and the other end of the coil in the relay is connected to a second input end of the single-source drive circuit; and a first output end of the single-source drive circuit is connected to a second input end of the switch circuit, a second output end of the single-source drive circuit is connected to the output end of the switch circuit, and a third output end of the single-source drive circuit is connected to a negative electrode of the second external power supply. In the present invention, a volume of a power-on/off drive circuit is reduced. | ||||||
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