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Thus, the input AC power is rectified into output DC power but DC output power consists of pulses, hence, it is termed as pulsating DC and is not pure DC. In the above circuit, during the positive half cycle of the power supply, diodes D2 & D4 conducts and during the negative half cycle of the power supply, diodes D1 & D3 conducts. Hence, diodes are termed as uncontrolled rectifiers. Diode generally are uncontrolled i.e., whenever the anode voltage becomes greater than the cathode, then it starts conduction until anode voltage becomes less than the cathode. We know that, the diode conducts only in one direction (during forward bias only), remains in off state in another direction (during reverse bias).
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The rectifier which consists of four diodes and are connected in the form of bridge is called as a bridge rectifier. Let us discuss about AC to DC converter (here considering a frequently used converter in the power supply circuit, 230V AC to 5V DC converter) and its working in detail. Generally, the step-down converters can be defined as converters with output voltage less than the input voltage. There are different circuits that can be used for converting the available 230V AC power to 5V DC power using various techniques. The maximum number of electronic circuits are using DC power for their operation and let us consider the microcontrollers (8051 microcontrollers are typically used in maximum number of microcontroller based projects or circuits) which require 5V DC regulated power supply. The power electronics converter which is used for converting AC to DC is called as rectifier circuit. 8599 (17. Power multiple devices with different voltages at the same time these power supplies take AC voltage and convert it into several DC voltages at once. There are different types of power electronics converters such as rectifier, inverter, voltage regulator, F to V converter, cycloconverter, and so on. Desktop Bench Power Supply, AC-to-DC Power Converter with USB Charge and Vehicle Cigarette Lighter Socket (12 Amp) 352. Hence, this circuit can be called as a power supply circuit and there are various types of power supply circuits such as switched mode power supply, variable power supply, DC regulated power supply, etc., which are classified based on various criteria. In general, we can observe a circuitry from which the mains power supply is taken and this circuit is used to control the power delivering to the load.