120 Volt Ac To 12 Dc Converter Circuit Diagram

By | September 14, 2023

120 Volt AC to 12 Volt DC Converter Circuit Diagram

This article will discuss the design and operation of a 120 volt AC to 12 volt DC converter circuit. The circuit diagram will be provided, and the operation of the circuit will be explained in detail. ### Circuit Diagram The circuit diagram for a 120 volt AC to 12 volt DC converter is shown below. [Image of circuit diagram] The circuit consists of a transformer, a bridge rectifier, a filter capacitor, and a regulator. The transformer converts the 120 volt AC input voltage to a lower voltage, which is then rectified by the bridge rectifier. The filter capacitor smooths out the rectified voltage, and the regulator maintains a constant output voltage. ### Operation of the Circuit The transformer converts the 120 volt AC input voltage to a lower voltage, typically around 15 volts. This lower voltage is then rectified by the bridge rectifier, which converts it to a pulsating DC voltage. The filter capacitor smooths out the pulsating DC voltage, creating a more constant DC voltage. The regulator maintains a constant output voltage by adjusting the duty cycle of the pulse-width modulation (PWM) signal that drives the switching transistor. ### Applications of 120 volt AC to 12 volt DC Converters 120 volt AC to 12 volt DC converters are used in a variety of applications, including: * Powering electronic devices such as laptops, tablets, and smartphones * Charging batteries * Running DC motors * Providing regulated DC power for industrial applications ### Conclusion 120 volt AC to 12 volt DC converters are a versatile and useful component in a variety of electronic applications. They are relatively simple to design and build, and they can be used to convert a wide range of AC input voltages to a constant DC output voltage.


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