Battery charging circuit
A battery charging and circuit technology, applied to battery circuit devices, circuit devices, collectors, etc., can solve problems such as heat generation, current input value cannot be changed, energy loss, etc., to protect battery life, high frequency, reduce input The effect of current
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[0009] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0010] See figure 1 , a battery charging circuit, comprising an input terminal J1, a first transistor Q1, a second transistor Q2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a diode DW2, a battery , a capacitor C1, and an adjustable resistor RW1; the input end of the input end J1 is connected to one end of the first resistor R1, and the input end of the input end J1 is also connected to the collector of the first triode Q1, and the first The other end of a resistor R1 is connected to the base of the first transistor Q1, the emitter of the first transistor Q1 is connected to one end of the second resistor R2, and the base of the first transistor Q1 is also connected to the first The collector of the second transistor Q2, the emitter of the second transistor Q2 is connected to the other end of the second...
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