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A novel modulating method of two-stage matrix converter, which is based on dual space vector and dual carrier modulation, is proposed in this paper. The harmonics of input current and output voltage impacted by the carrier of rectifier and inverter is discussed. The relation of THD of input current and output voltage and carrier frequency of rectifier and inverter is given, which makes known that...
This paper presents a constant-current power supply for HB-LED(High Brightness LED). The proposed power supply is designed and implemented by adopting a flyback converter with primary side control and without galvanic isolation. Based on discontinuous conduction mode (DCM), the flyback converter has constant average output current when the peak current on the transformer primary side and the ratio...
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