LED light bar switch power supply is generally composed of LED diode, IGBT and MOSFET. It uses the circuit to control the switch tube for high-speed communication And cut off, convert the DC power supply into high-frequency alternating current to supply voltage to the converter, so that it can generate one or more groups of required voltage. The switching power supply can be generally divided into isolation and non isolation. The isolated type must have switching power converter, and the after-sale and non isolation type of Chengdu Sanyo washing machine may not necessarily have switching power converter. Compared with traditional DC power supply, switching power supply has the advantages of small size, light weight and high efficiency.

LED light strip switching power supply has a circuit to control the switch tube for high-speed channel pass and cut-off, which is to convert DC power supply into high-frequency AC to change the converter Voltage, which can generate one or more groups of required voltage, is converted into high-frequency alternating current. The reason is that the efficiency of high-frequency alternating current in the transformer circuit is higher than that of the commercial power of 50Hz or 60Hz, so the switching power transformer can be very small, not very hot when the switching power is working, and the product price is lower than that of the power frequency DC stabilized power supply. If the 50Hz or 60Hz is not converted into high-frequency electricity, then So switching power supply has no meaning. Switching power supply can be divided into isolation and non isolation. It must have switching power converter of isolation type, while it may not have switching power converter of non isolation type. Compared with the traditional DC power supply, the switching power supply of linear regulated power supply has the advantages of small volume, light weight and high efficiency.