The development of computer technology, the computer put forward green and green dc to ac inverter

Green computer refers to harmless to the environment, personal computers and related products green power refers to the green computer related efficiently save electricity power inverter , according to the U.S. environmental protection agency in l992 on June 17, "energy star" program, desktop personal computers or related peripheral equipment, the power consumption in the sleep state, if less than 30 watts, accord with the requirement of green computer, improve the efficiency of power inverter is the basic way to reduce power consumption.

Current efficiency is 75% of 200 w switching dc to ac inverter , power inverter itself consumes 50 watts of energy.

2.2 communication of high frequency switching power inverter

Telecommunication industry has been heavily promoted by the rapid development of the development of communication dc to ac inverter. 

High-frequency miniaturization of switch power inverter and its technology has become the mainstream of modern communication dc to ac inverter system. 

In the field of communication, often will be called a rectifier power inverter, and DC - DC (DC/DC) converter referred to as the secondary sine wave inverter .

A single-phase or three-phase ac power grid is the role of the power to transform the nominal value of 48 v dc dc to ac inverter. 

In SPC exchange with a sine wave inverter at present, the traditional phased type regulated sine wave inverter has replaced by the high frequency switching power inverter, high-frequency switching sine wave inverter (also known as switch mode rectifier SMR) by MOSFET and IGBT high frequency work, general control switch frequency in 50-100 KHZ range, to achieve high efficiency and miniaturization. 

Expands unceasingly in recent years, the power switch rectifier capacity, capacity of f from 48 v / 12.5 A 48 v / 20 A, extended to the 48 v / 200 A, 48 v / 400 A.

Because there are many types of integrated circuit used in communication equipment, the sine wave inverter voltage is also each are not identical, in the communication power inverter system with high power density of the high frequency DC - DC isolation power inverter module, from the middle busbar voltage (generally of 48 v DC) into the various DC voltages, it can greatly reduce the loss, convenient maintenance, and installation, increase is very convenient. 

Generally can be directly mounted on a standard control panel, the requirement for the secondary power inverter is a high power density.