Short-circuit protection circuit for load of massage chair
A load short-circuit and circuit protection technology, which is applied in the direction of protection against overcurrent, can solve problems such as no protection function, loose load-side interface terminals, and damaged skin.
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[0012] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0013] Please refer to figure 1 , the present invention proposes a massage chair load short-circuit protection circuit, including R6, R3, R1, U1B, wherein one end of R6 is connected to the GND end, and the other end is connected to the source of Q1; the drain of Q1 is connected to the positive electrode of D1, and Q1 The gate of D1 is connected to the INPUT terminal; the negative pole of D1 is connected to the VM terminal; the port 1 of J1 connected to the motor is connected to the connection between D1 and VM, and the port 2 is connected to the connection between Q1 and D1; the positive pole of D2...
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