| 摘要 |
PURPOSE: A power stabilization circuit for an electric component of a vehicle is provided to protect 5V electric components from over-voltage and inverse-voltage without a regulator. CONSTITUTION: A power stabilization circuit for an electric component of a vehicle comprises first, second, and third capacitors(C21,C22,C23), and a zener diode(ZD21), and a resistor(R21). The first capacitor is connected to a power terminal(Vcc) of a main integrated circuit(21) and eliminates noise. The cathode end of the zener diode is connected to the power terminal and restricts maximum voltage applied to the main integrated circuit. The second capacitor is connected to an output terminal(Vout) of the main integrated circuit. The third capacitor is connected between the output terminal and the ground.
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