An Improved Boost Topology According to the Voltage Lift Technique

This paper introduces a high-gain, non-isolated DC-DC converter featuring a single switch and a straightforward driving circuit. The proposed topology employs a super-lift Lou converter beside inductor-based and capacitor-based voltage multiplier cell to enhance the voltage lift technique. The voltage gain is capable of exceeding tenfold at low duty cycles. The input current is kept continuous to decrease the current stress of the input filter capacitor and the current stresses are less than the input current. Moreover, the voltage stresses remain below the output voltage, notably, the maximum value on the components is kept under half of the output voltage, marking a significant advancement for high-output voltage applications. Additionally, a common ground for the load and input source is established and the electromagnetic interference (EMI) noise issues are managed. The proposed topology is discussed in the ideal and non-ideal modes. Furthermore, the converter’s required relations are discussed in the continuous and discontinuous conduction modes (CCM & DCM). Then the suitable applications are discussed. Finally, this topology is highly recommended for high-intensity discharge (HID) lamps, supported by experimental results from a prototype with a ۱۲ V input, ۳۱۲ V output, ۰.۱ A output current and a ۵۰ percent duty cycle.

کلیدواژه ها:

boost converter ، diode-capacitor voltage multiplier cell ، HID lamps ، positive output super lift Luo converter