Classification of Switching Power diode Supplies

Classification of Switching Power diode Supplies

There are many classification principles for Switching Power diode supplies, with common ones being based on whether they have the ability to provide energy feedback, whether they can be isolated, and the type of switching circuit they adopt.

Usually, switching power supplies are not required to have the ability to feed back electrical energy from the load side to the power supply side, so most power supplies cannot. However, some specific applications, such as battery charging and discharging power supplies, require bidirectional flow of electrical energy between the power supply and the load, which requires a power supply that can feed back electrical energy.

According to whether the input and output of Switching Power diode supply are Galvanic isolation, they can be divided into two categories: non isolated and isolated. The input and output of Switching Power diode supply without Galvanic isolation capability are non isolated, and the input and output of switching power supply with Galvanic isolation capability are isolated. It is worth noting that compared to non isolated switching power supplies with the same voltage, current, and power, isolated switching power supplies have more complex circuits, slightly lower efficiency, and increased costs. However, in practical applications, isolated switching power supplies are still widely used for the following reasons:

1. The load requires Galvanic isolation between the output end and the input end of the power supply.

2. Multiple outputs that require mutual isolation.

3. The ratio of output voltage to input voltage is much less than 1 or much greater than 1.