The output voltage of the switching power supply with voltage rise is always higher than the input voltage U_ I is much higher, and the polarity of the two is the same. When the switch is saturated, the inductor will store all the energy. When the switch is disconnected, the inductive power is supplied to the load by the continuous current diode, and the capacitor C is charged at the same time. When the load voltage drops, the capacitor discharges again, resulting in a stable voltage higher than the input voltage. Because the switch tube and the load are parallel, it is also called parallel switching power supply.<br>
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