Switching control circuit
A switch control circuit and switch circuit technology, applied in electronic switches, electrical components, pulse technology, etc., can solve problems such as electric shock, leakage, artificial opening or closing of switches, etc.
Active Publication Date: 2012-12-26
张献忠 +1
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Problems solved by technology
However, the switch still needs to be turned on or off manually. If the user forgets to operate the switch or misuses it, it will still cause leakage and electric shock.
Method used
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[0020] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.
[0022] figure 1 is a schematic diagram of the switch control circuit according to an embodiment of the present invention.
[0023] Such as figure 1 As shown, the present invention provides a switch control circuit, including: a rectifier circuit 102, connected to the live wire end and the neutral wire end of the AC power supply, to convert the AC power of the AC power supply into DC power; a switch ...
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The invention provides a switching control circuit comprising a rectification circuit, a switching circuit, a control circuit and a relay, wherein the rectification circuit is connected with the power line end and the zero line end of an alternating current power supply and is used for converting the alternating current of the alternating current power supply into direct current; the switching circuit is connected with the rectification circuit; the control circuit is connected with the switching circuit and is connected with a coil of the relay; the relay comprises the coil and a first normally open contact, wherein the first end of the first normally open contact is connected with the power line end; the second end of the first normally open contact is connected with a load; the on-off of the switching circuit is controlled according to whether the load is connected with the second end of the first normally open contact or not; and the control circuit controls the on-off of the coil according to the on-off of the switching circuit to further control the on-off of the first normally open contact. Through the invention, a socket can be effectively prevented from generating leakage, electric shock and the like to ensure the safety of a user.
Description
technical field [0001] The invention relates to a switch control circuit. Background technique [0002] The existing ordinary socket directly connects the load to the live wire and the neutral wire, which is easy to cause electric leakage and electric shock, which endangers personal safety. Among them, children are most likely to insert fingers or conductive objects into the jack of the socket, resulting in electric shock. [0003] Ways to solve the above problems include providing a control circuit for the socket, and controlling the connection or disconnection of the load with the live wire and the neutral wire of the AC power supply through components such as a switch. However, the switch still needs to be turned on or off manually, and if the user forgets to operate the switch or performs a misoperation, it will still cause leakage and electric shock. [0004] Therefore, there is a need for a method that can automatically determine whether the plug of the load has been ...
Claims
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IPC IPC(8): H03K17/51
Inventor 李宗树
Owner 张献忠