A voltage-doubling three-winding coupled inductor high-gain DC converter
A DC converter, coupled inductor technology, applied in the direction of converting DC power input to DC power output, adjusting electrical variables, instruments, etc. The 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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