Boost-improved boost gain Cuk converter single-switch DC-DC circuit
A DC-DC, single switch technology, applied in UPS and smart grid, electric energy storage, electric vehicle field, can solve the problems of intermittent diode current, low voltage gain, large output ripple, etc., to achieve continuous input current, Effect of improving voltage gain and conversion efficiency
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[0018] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0019] like figure 1 As shown, this embodiment provides a Boost-improved boost gain Cuk converter single-switch DC-DC circuit, the design content of its circuit part is specifically: DC input power supply U i , the first inductance inductance L 1 , the first power diode D 1 , the second power diode D 2 , the first bus capacitor C 1 , the second inductance L 2 , Power MOS switch tube Q 1 , Intermediate capacitance C 2 , Improving the first capacitor C of the boost gain network 3 , Improving the second capacitor C of the boost gain network 4 , the third power diode D 3 , the fourth power diode D 4 , the fifth power diode D 5 , the third inductance L 3 , output capacitance C 5 , load RL.
[0020] The positive pole of the DC power supply is connected to the first inductor L 1 a1 terminal; the first inductance L 1 The a2 termin...
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