What is off-line switching power supply
You can not take the power, with their own battery switching power supply
Switching power supply isolated, non-isolated two, where the "isolation", "non-isolated" are in terms of the grid. Isolated switching power supply, also known as off-line (off-line) switching power supply, which belongs to AC / DC converter, which is characterized by high-frequency transformer and optocoupler feedback circuit to achieve the isolation of the output voltage and the grid, the switching power supply Specified safety regulations. Isolated switching power supply is safe, but the circuit is complex, the cost is higher; non-isolated switching power supply circuit is simple, but the security is poor. Should be based on the design of the use of switching power supply and safety norms to choose. For example, according to the relevant standards, some white goods (such as home air conditioners, dishwashers, rice cookers, refrigerators, household electric heaters, etc.) internal control power, allowing the use of non-isolated switching power supply to reduce costs, The provisions prohibit the user to repair, so to avoid the occurrence of security incidents.
The so-called off-line power supply, the English name "Offline Power" that is isolated power supply.
Off-line switching power supply, also known as isolated switching power supply, is an AC-DC converter circuit.
AC and DC are isolated by transformer.
In some laboratories or high demand occasions, for the safety of the experimental staff, the experimental input power is generally used 1: 1 frequency transformer and the mains to isolate, so that the laboratory laboratory personnel regardless of which line encountered The root line will not have the risk of electric shock, because the isolated power and the earth is not connected.
In industrial control equipment, it is sometimes necessary to isolate the power supply lines between the two systems, such as isolating ground noise, isolating high common mode voltages, etc., using a DC converter with a transformer to separate the two power supplies They are independent of each other, in order to achieve the above purpose!
Each module is powered separately to prevent a module from damaging other modules due to high voltage discharge or other causes. The purpose of this can be to ensure that each module is working independently and undisturbed.
