Isolated switching power supply
The isolated switching power supply requires a high-frequency transformer for DC-DC conversion. The input and output are physically isolated through the transformer, and the safety will be higher.
The input AC power is rectified and filtered by the rectifier bridge and then becomes high-voltage DC power. The switching power supply control chip then converts the high-voltage DC power into high-frequency pulsating DC power and inputs it to the primary of the high-frequency transformer. Through electromagnetic induction, the secondary of the high-frequency transformer can The low-voltage pulsating direct current is obtained, and the low-voltage pulsating direct current can be rectified and filtered to obtain direct current.
The switching power supply control chip will automatically adjust the switching frequency and duty cycle according to the output voltage and current requirements to obtain a higher energy conversion rate
