Abstract:An AC voltage regulator controlled by chopping technology is investigated,the principle of the chopper circuit is described,and the principle of the chopper used with current and voltage phase detection of non-complementary is also described in details.In addition,the logic circuit for non-complementary is designed,and the influence of chopper frequency on the waveform of output voltage is analyzed.Finally,the AC voltage regulator is made and tested.The test results show that the output voltage has many good performances,such as good waveform,stable voltage.