PFC, full bridge and half bridge-based intelligent modified wave voltage conversion circuit
A conversion circuit, intelligent technology, applied in high-efficiency power electronic conversion, output power conversion device, energy industry, etc., can solve the problems of low PF value, low output voltage quality, poor safety and reliability, etc.
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[0019] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.
[0020] The invention discloses an intelligent modified wave voltage conversion circuit based on PFC, full bridge and half bridge, combining Figure 1 to Figure 3 As shown, it includes:
[0021] An input unit 10, used to provide DC voltage;
[0022] A PFC step-up unit 20, connected to the output end of the input unit 10, for boosting the output voltage of the input unit 10;
[0023] A full-bridge isolation conversion unit 30, including a first switching tube Q6, a second switching tube Q7, a sixth switching tube Q8, a seventh switching tube Q9, a transformer T1, a first diode D5, and a second diode D6 and the filter inductor L3, the drain of the sixth switching transistor Q8 is connected to the output end of the PFC boost unit 20, the source of the sixth switching transistor Q8 is connected to the first end of the primary winding of the transfor...
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