A voltage doubling type three-winding coupled inductance high-gain DC converter
A technology of DC converter and coupled inductor, which is applied in the direction of converting DC power input to DC power output, adjusting electrical variables, instruments, etc. It can solve the problems of limited boosting capacity and inapplicability to high-gain DC power conversion occasions, and achieve high Effect of Voltage Gain
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specific Embodiment approach 1
[0018] Specific Embodiment 1: A voltage doubler type three-winding coupled inductor high-gain DC converter described in this embodiment includes a three-winding coupled inductor winding, a voltage doubler structure, and a power switch tube S 1 and output diode D o ,
[0019] The three-winding coupled inductor winding is used in the power switch tube S 1 When turned on, the DC voltage source V in The input energy is stored and amplified through the doubler structure;
[0020] Also used in the power switch tube S 1 When it is turned off, use the power switch tube S 1 The parasitic capacitance absorbs the leakage inductance energy, so that the power switch S 1 The voltage across both ends is higher than the output capacitor C o The voltage across both ends turns on the output diode D o , will amplify the energy through the output diode D o for the load R and the output capacitor C o powered by.
specific Embodiment approach 2
[0021] Specific implementation mode two: refer to figure 1 Describe this embodiment in detail. This embodiment is a further description of a voltage-doubler type three-winding coupled inductor high-gain DC converter described in Embodiment 1. In this embodiment, it also includes an inductor L 1 ,
[0022] DC voltage source V in Give the inductor L through the voltage doubler structure 1 charging, the power switch S 1 When turned off, the inductance L 1 for the load R and the output capacitor C o powered by.
specific Embodiment approach 3
[0023] Specific implementation mode three: refer to figure 1 This embodiment is described in detail. This embodiment is a further description of a voltage doubler type three-winding coupled inductor high-gain DC converter described in the first or second specific embodiment. In this embodiment, the three-winding coupled inductor winding includes coupling Inductor winding N 1 , coupled inductor winding N 2 and coupled inductor winding N 3 ,
[0024] The voltage doubler structure consists of a diode D 1 , Diode D 2 and capacitance C 1 ,
[0025] DC voltage source V in The positive pole is connected to the inductor L at the same time 1 one end of the diode D 2 positive pole, the inductor L 1 The other end of the capacitor C is connected at the same time 1 one end of the diode D 1 the anode of the diode D 1 The negative pole of the power switch tube S is connected 1 The drain of the power switch S 1 The source is connected to the DC voltage source V at the same time...
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