Multisim implementation and analysis of a DC to DC boost converter with two parallel stages

摘要

In this paper is presented the implementation in MULTISIM and numerical simulation analysis of a DC to DC boost converter with two parallel stages. For the boost converter with two stages in parallel implemented in this paper input voltage is 24 VDC and output voltage 48 VDC at a maximum power of 1.7 kW. The switching frequency was set about 10 kHz. The implementation scheme in Multisim has two stages of identical power, which are connected in parallel. The boost converter with two stages in parallel has been tested under various loads, for a variable duty cycle and for constant duty cycle. Based on numerical simulations there were drawn the characteristics for a boost converter with two stages in parallel. It was noted that the behavior of two stages in parallel boost converter is similar to the single stage mentioning that the second one has an extended domain for the output currents.