Chinese Inverter technology
Currently, Inverter technology has gradually get matured now, but the whole-machine enterprise has deficiencies in the control plane, such as in different environments, how to change the inverter compressor or air motor speed in order to achieve maximum energy efficiency and comfort maximized.
Moreover, China new fixed speed air conditioning energy efficiency rating will be the into effect on June 1, this step also prompting companies to find ways to further improve the energy efficiency of air conditioning at constant speed. An industry source said: "I have heard that some companies want to adopt brushless DC motor on the basis of frequency of the compressor to achieve energy efficiency." It is understood that currently ROHM semiconductor provide brushless DC fan motor controller BD6209FS for air conditioning. The chip was built 180 ° sine wave drive, forward / reverses function and synchronous rectification.
