What are the general components of a DC regulated power supply?
The rectifier circuit, filter circuit, power transformer, and voltage stabilizing circuit make up the four circuits that make up the DC regulated power supply.
1. Transformer of power
Power transmission, voltage conversion, and insulation isolation are the three main uses for the power transformer, a soft magnetic electromagnetic component. Power electronics and power supply technologies both make extensive use of it.
2. Circuit for rectifier
A circuit known as a "rectifier circuit" or "rectifying circuit" transforms AC power into DC electricity. Transformers, rectifier main circuits, and filters make up the majority of rectifier circuits. It finds extensive application in the domains of electrolysis, electroplating, generator excitation regulation, DC motor speed regulation, and other related sectors. Typically, the rectifier circuit is made up of a transformer, a filter, and the main circuit. Thyristors and silicon rectifier diodes constituted the majority of the main circuit's components after the 1970s. To remove the AC component from the pulsing DC voltage, a filter is attached between the main circuit and the load. The transformer's setting is determined by the particular circumstances.The transformer's purpose is to establish electrical isolation between the rectifier circuit and the AC grid as well as matching between the AC input voltage and the DC output voltage.
The function of the rectifier circuit is to convert the lower-voltage alternating current output by the AC step-down circuit into unidirectional pulsating direct current. This is the rectification process of alternating current. The rectifier circuit is mainly composed of rectifier diodes. The voltage after passing through the rectifier circuit is no longer an AC voltage, but a mixed voltage containing DC voltage and AC voltage. It is customary to call unidirectional pulsating DC voltage. DC regulated power supply
3. Filter circuit
Filter circuits are often used to filter out ripples in the rectified output voltage. They are generally composed of reactance components, such as a capacitor C connected in parallel to both ends of the load resistor, or an inductor L connected in series with the load, as well as various complex components composed of capacitors and inductors. filter circuit.
4. Voltage stabilizing circuit
A voltage stabilizing circuit refers to a circuit that can maintain a constant output voltage when the input voltage, load, ambient temperature, circuit parameters, etc. change. This circuit can provide stable DC power and is widely used in various electronic equipment.
