Composite power system of electric vehicle DC-DC converter and control method
A DC-DC, electric vehicle technology, applied in electric vehicles, electric traction, vehicle energy storage, etc., can solve problems such as system cost increase, achieve high efficiency, and achieve the effect of high-efficiency work
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[0037] The present invention is described in further detail below in conjunction with accompanying drawing:
[0038] refer to figure 1 , the composite power supply system of the electric vehicle DC-DC converter according to the present invention includes a first MOS transistor SW1, a second MOS transistor SW2, a third MOS transistor SW3, a first diode D1, a second diode D2, The third diode D3, the battery pack, the super capacitor UC, the DC-DC converter, the motor inverter 1, the DSP controller 5, the first voltage acquisition circuit 4, the second voltage acquisition circuit 2 and the current acquisition circuit 3, The DC-DC converter includes an energy storage inductance L, a fourth MOS transistor SW4, a fifth MOS transistor SW5, a fourth diode D4, and a fifth diode D5; the anode of the battery pack and the third MOS transistor SW3 The drain of the third MOS transistor SW3 is connected to one end of the energy storage inductor L and the source of the second MOS transistor ...
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