There are many types of power supplies, and a wide variety of regulated power supplies can be classified from different angles.
According to the connection between the voltage stabilizer circuit and the load, it is divided into series stabilized power supply and parallel stabilized power supply;
The series regulated power supply is also called transistor regulated power supply. It has the advantages of low noise, small ripple and high stability, so it is widely used in A/D or D/A converters or other analog circuits.
The shunt regulated power supply has the advantages of simple circuit structure and few components. However, the voltage regulation value depends on the stable voltage of the voltage regulator tube and cannot be adjusted. Therefore, this voltage stabilizer circuit is suitable for occasions where the voltage is fixed, the load current is small, and the load changes little.
According to the working state of the adjusting tube, it is divided into linear regulated power supply and switching regulated power supply;
The switching regulated power supply has high efficiency, high power density and good dynamic response, but its technical requirements are high and the circuit is relatively complex.
The linear regulated power supply has low efficiency and large size, but has small ripple and simple circuit.
According to the type of circuit, it is divided into simple regulated power supply and feedback regulated power supply [3].
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