Nonzero Staircase Modulation Scheme for Switching DC-DC Boost Converter

Abstract EN

This paper presents a novel modulation scheme known as the nonzero staircase modulation scheme for switching DC-DC boost converters.

This modulation scheme generates two distinct pulse trains/firing signals when a 50 Hz nonzero staircase modulating signal is compared with a 1.5 kHz triangular wave signal.

Unlike the conventional modulation schemes, the proposed novel modulation scheme provides two distinctive trains of pulse-width modulated signals for mitigating low and high harmonics.

It also possesses 0.56% total harmonic distortions (THD) of the output voltage waveform system, a power output of 4591 W, and THD of 1.12% in the DC-DC boost converter system.

It has a simple design and low power loss of 209 W.

The proposed scheme enables the single switch boost DC-DC converter used to have an efficiency of 96%.

The proposed scheme can be applied in single switch or double switch boost DC-DC converter based-hospital equipment.