So far, as the global attention on the issue of energy, the energy of electronic products will be more prominent, and how to reduce the standby power consumption and improve portable power supply ficiency as a pressing problem. Traditional linear portable power supply circuit Although the structure is simple, reliable, but there is a low efficiency (only 40% -50%), bulky, Copper, Iron and consumed in large quantities, the high temperature and adjust the scope of small shortcomings. In order to improve efficiency, through the tireless efforts of the people, designed a switch-mode power supply, and its efficiency is more than 85%, regulator range, in addition, the regulator also has high accuracy, the non-use features such as power transformers , is a better power supply.
