A kind of high step-up dc/dc converter
A converter and high-boost technology, applied in the field of high-boost DC/DC converters, can solve problems such as output capacitor voltage imbalance, high voltage stress, and high voltage gain, and achieve low device voltage stress and strong boost capability , the effect of low voltage stress
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] see figure 1, the present invention designs a kind of high step-up DC / DC converter, is made up of Boost circuit unit and step-up unit, can realize soft switching, has very high efficiency, and Boost circuit unit and step-up unit realize the high step-up of the converter . Based on the idea and method of the present invention, different high-boost converters can be obtained by changing the topology combination of the boost units.
[0026] Figure 2-4 Three different boost unit converters with this similar structure are listed.
[0027] in, figure 2 The boost unit is a rectifier circuit, the specific connection structure is: capacitor C One end is connected to the switch tube S at the same time 2 The drain and coupled inductor secondary L 2 The end of the same name, the other end is connected to the cathode of the diode...
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