Single switching tube high-grain converter based on coupling inductance voltage-multiplying unit
A technology of coupled inductor and single switch, which is applied in the direction of electrical components, adjusting electric variables, output power conversion devices, etc., can solve the problems of complex circuit structure and small voltage gain, so as to improve the voltage gain and suppress the turn-off voltage spike Effect
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[0015] Example 1
[0016] Refer to the attached figure 1 , 2 , a single-switch high-gain converter based on a coupled-inductance voltage-doubling unit, including a coupled inductance La, Lb with primary and secondary windings, a voltage-doubling capacitor Cm, a switched capacitor Cc, and an output capacitor C0, Two freewheeling diodes Dr1 and Dr2, one output diode D0 and one switch tube S; the first end of the primary winding La of the coupled inductor is connected to the positive electrode of the input power supply Vin and the first end of the voltage doubling capacitor Cm, and is coupled to The second end of the primary winding La of the inductor is connected to the drain of the switch tube S, the anode of the first freewheeling diode Dr1 and the first end of the switched capacitor Cc; the first end of the secondary winding Lb of the coupled inductor is connected to the The second end of the voltage doubling capacitor Cm is connected, and the second end of the secondary wi...
Example Embodiment
[0026] Embodiment 2
[0027] see image 3 , the difference between this embodiment and the first embodiment is that the first end of the voltage doubling capacitor is connected to the negative electrode of the input voltage source, the source electrode of the switch tube, one end of the output capacitor and one end of the output load, and the other structures and The functions are the same.
Example Embodiment
[0028] Embodiment 3
[0029] see Figure 4 The difference between this embodiment and the first embodiment is that the first end of the voltage doubling capacitor is connected to the cathode of the output diode, one end of the output capacitor and one end of the output load, and other structures and functions are the same.
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