What is the difference between a non-isolated power supply and an isolated power supply?
The difference between non-isolated power supply and isolated power supply is: different risk of electric shock, different driving efficiency, and different cost.
First, the risk of electric shock is different
1. Non-isolated power supply: The load terminal of the non-isolated power supply is directly connected to the input terminal. The non-isolated power supply will introduce the high voltage of the AC power supply to the load terminal, thereby causing the danger of electric shock.
2. Isolated power supply: The load end and the input end of the isolated power supply are indirectly connected, so there is no danger of electric shock when touching the load.
Second, the driving efficiency is different
1. Non-isolated power supply: The driving efficiency of non-isolated power supply is high, and the voltage range is between 110-300V.
2. Isolated power supply: The driving efficiency of the isolated power supply is low, and the voltage range is between 60V-300V.
Third, the cost is different
1. Non-isolated power supply: The circuit structure used by the non-isolated power supply is a DC/DC boost or step-down circuit scheme, so the circuit is relatively simple and the cost is relatively low.
2. Isolated power supply: The circuit structure used in the isolated power supply is an AC/DC flyback circuit scheme, so the relative circuit is more complicated and the cost is higher.
