An automatic recovery circuit for overcurrent protection
A technology of automatic recovery and overcurrent protection, applied in the field of electronics, can solve the problems of damage to high-power switch tubes, inconvenience of manual power-off and start, inconvenience, etc.
Active Publication Date: 2017-11-24
SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1
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Problems solved by technology
[0002] When accidents such as load short-circuit, overload or control circuit failure occur, the high-power switch tube is likely to be damaged without an over-current protection device. At present, the over-current protection of many electrical products generally needs to be powered off again after protection. Power-on start, due to conditional restrictions, it is inconvenient to manually power-off start, which brings great inconvenience to people
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0031] refer to figure 1 , the embodiment of the present invention discloses an overcurrent protection automatic recovery circuit, a switch circuit and a control circuit, wherein: the switch circuit is connected to a load and used to provide an operating current to the load; the control circuit is connected to the switch The circuit is connected to control the on-off of the switch circuit, and then when the load is over-current or short-circuited, the switch circui...
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The embodiment of the present invention discloses an automatic recovery circuit for overcurrent protection. The embodiment of the present invention discloses an automatic recovery circuit for overcurrent protection. The switch circuit is connected to a load and is used to provide an operating current to the load; The control circuit is connected with the switch circuit, and is used to control the on-off of the switch circuit, and then close the switch circuit in time when the load is over-current or short-circuited, and after the load over-current or short-circuit is eliminated, the external Automatically restarts on power drive. It can be seen that the embodiment of the present invention has the functions of over-current protection and automatic recovery of switching circuits, and is suitable for over-current protection circuits of various switching circuits.
Description
technical field [0001] The invention relates to the field of electronics, in particular to an overcurrent protection automatic recovery circuit. Background technique [0002] When accidents such as load short-circuit, overload or control circuit failure occur, the high-power switch tube is likely to be damaged without an over-current protection device. At present, the over-current protection of many electrical products generally needs to be powered off again after protection. Power-on start, due to conditional restrictions, it is inconvenient to manually power-off start, which brings great inconvenience to people. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present invention is to provide an automatic recovery circuit for overcurrent protection, which has the function of automatically recovering the switching power supply, achieves the function of overcurrent protection, and automatically resumes work after the overcurren...
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IPC IPC(8): H02H3/08H02H3/06
Inventor 周明杰管伟芳
Owner SHENZHEN OCEANS KING LIGHTING ENG CO LTD