Transformer antitheft system power supply circuit capable of improving power supplying stability
A technology of voltage stabilizing circuit and anti-theft system, applied in the direction of electrical components, output power conversion devices, etc., can solve the problems of high voltage of the transformer anti-theft system, influence monitoring, damage to the transformer anti-theft system, etc., to achieve low cost, stable voltage, and improved The effect of stability
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[0020] Such as figure 1 As shown, the power supply circuit of the transformer anti-theft system that can improve the stability of power supply includes a battery, a primary signal filter circuit, a voltage regulator circuit, a secondary signal filter circuit and a power signal output line 1, wherein the voltage regulator circuit uses a MIC29302 chip, and its design There are power input pin Vin, power output pin Vout, enable pin EN, ground pin GND and floating pins, the ground pin GND of the voltage stabilizing circuit is grounded, and the battery is connected to the power input pin Vin of the voltage stabilizing circuit , the power signal output line 1 is connected to the power output pin Vout of the voltage stabilizing circuit, and the enable signal input line 2 is externally connected to the enable pin EN.
[0021] The primary signal filtering circuit of this embodiment includes capacitor one C1 and capacitor two C2, and one end of the parallel branch formed by connecting c...
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