A patch switch is an electronic switching device, usually used for the control and regulation of electronic devices. Its working principle is based on mechanical contacts or semiconductor devices. Specifically, depending on the type of patch switch, its working principle is as follows:
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1. Mechanical patch switch: The mechanical patch switch controls the current through physical detachment contact. When the button is pressed or the knob is turned, the internal spring is triggered by force and connects or disconnects the contactor (copper sheet) to the terminal.
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2. Handle patch switch: The handle patch switch is similar to a mechanical switch, but it has an operating handle as a trigger. When the handle is pushed or flipped to the desired position, the internal spring is released and connects or disconnects the contactor to the terminal.
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3. Touch sensing patch switch: The patch switch is an electrostatic capacity switch without mechanical parts. When the human body approaches the sensor panel, the electric field on the sensor panel changes and is detected by the sensor. This can trigger the internal control circuit and turn the patch switch on or off.
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4. Optical patch switch: The optical patch switch controls the current through optical signals rather than touch, and contains a pair of beam transmitters and receivers. When preventing light from reaching the receiver, the patch switch is turned on or off.
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In short, the chip switch has the characteristics of simple and reliable, easy to operate, long life, etc., and is widely used in various electronic equipment.
Patch switch is a common electronic component, it can play the role of switch in the circuit. The principle of the chip switch is to realize the circuit switch through the mechanical structure, which has the advantages of simple structure, convenient use and high reliability.