Results 31 to 40 of about 688 (209)

± 180° Discontinuous PWM for Single-Phase PWM Converter of High-Speed Railway Propulsion System

Energies, 2020
As high-capacity alternating current/direct current (ac/dc) power conversion systems, single-phase pulse-width modulation (PWM) converters used in high-speed railway propulsion systems adopt high-voltage Insulated-Gate Bipolar Transistors (IGBTs) as ...
Min-Sup Song, In-Ho Cho, Jae-Bum Lee
doaj   +1 more source

Peak-Zero-DPWM for Improving Performance of Single-Phase Five-Level T-Type NPC Inverter

IEEE Access
The discontinuous pulse width modulation (DPWM) improves the efficiency and reliability of power devices by reducing the switching losses. However, it aggravates the Total Harmonic Distortion (THD) of outputs and the reliability of DC-link capacitors ...
Taerim Ryu, Ui-Min Choi
doaj   +1 more source

An Improved Phase-Shifted DPWM Method for Reducing Switching Loss and Thermal Balancing in Cascaded H-Bridge Multilevel Inverter

IEEE Access, 2020
This paper proposes an improved discontinuous pulse-width modulation (DPWM) method based on phase-shifted PWM (PS-PWM) for three-phase cascaded H-bridge (CHB) multilevel inverters.
Seok-Min Kim, Eui-Jae Lee, June-Seok Lee, Kyo-Beum Lee   +3 more
doaj   +1 more source

A design of a low-delay DPWM control circuit for DC-DC converter [PDF]

, 2007
A proposed design of a low-cost digital pulse width modulation (DPWM) control circuit for non-isolated DC-DC converter without A/D converter is described. Also, propsed realtime PID control technique for DPWM is described.
Hirofumi Matsuo, Ueno, Masao, Ishizuka, Yoichi, Matsuo, Hirofumi, Masao Ueno, Asako, Yosuke, Yosuke Asako, Yoichi Ishizuka   +7 more
core   +1 more source

A Novel Discontinuous PWM Method With Hybrid Three-Step Commutation to Reduce Common-Mode Voltage for Direct Matrix Converter

IEEE Open Journal of the Industrial Electronics Society
The conventional discontinuous pulsewidth modulation (PWM) can provide several advantages in a direct matrix converter (DMC), such as less switching number and less execution time for modulation signals' calculation.
Sahel Solemanifard, Cheng-Chin Hu, Tzung-Lin Lee, Mohammadreza Lak   +3 more
doaj   +1 more source

End-to-End Quantization Co-Design for MHz GaN Converters using Dither and Sigma-Delta Modulation

Edison Journal for Electrical and Electronics Engineering
We study end-to-end quantization in digitally controlled MHz-range GaN DC–DC converters, spanning the analog-to-digital converter (ADC), fixed-point controller, and digital pulse-width modulator (DPWM).
Nuha Adnan Al-Obaidi, Ali Nawar
doaj   +1 more source

Design of a DC–DC Converter Customized for Ultra-Low Voltage Operating IoT Platforms

Energies, 2020
With remarkable advances in IoT, big data, and AI, the fourth industrial revolution is upon us. Low power design methodologies and techniques have been greatly contributing to these advancements by addressing the critical issue of how to increase the ...
Wonjune Hwang, Kitae Yoo, Dang Van Thai, Woojoo Lee, Kwang-Hyun Baek   +4 more
doaj   +1 more source

A Virtual Negative Resistor Based Common Mode Current Resonance Suppression Method for Three-Level Grid-Tied Inverter with Discontinuous PWM

Energies, 2020
The output LC filter of a photovoltaic (PV) string three-level grid-tied inverter that connects the filter capacitor neutral point to dc-link capacitor neutral point can reduce the common-mode (CM) current injected to the grid by letting the CM current ...
Qiyu Li, Hongwei Zhou, Jiansong Zhang, Shengdun Zhao, Jingfeng Lu   +4 more
doaj   +1 more source

Review of recent trends of advancements in multilevel inverter topologies with reduced power switches and control techniques

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
Some of the topologies with a fewer number of power switches are reviewed and scrutinized. An extensive analysis of the topologies, control strategy and applications are presented here, suggesting suitable multilevel inverter solutions to the known industrial application or new research.
Anurag Choudhary, Rohit Kumar, Shimi Sudha Letha, Farhad Ilahi Bakhsh, Arshdeep Singh, Mohammad Junaid Khan   +5 more
wiley   +1 more source

Single Inductor-Multiple Output DPWM DC-DC Boost Converter with a High Efficiency and Small Area

, 2018
In this paper, a small-area and high-efficiency single-inductor multiple output (SIMO) boost converter with digital pulse-width modulation (DPWM) is proposed.
Keum Hwang, Abbasizadeh, Hamed, Young Park, Hwang, Keum Cheol, Lee, Minjae, Pu, Young Gun, Minjae Lee, Shah, Syed Adil Ali, Jang, Byeong Gi, Yang, Youngoo, Young Pu, Youngoo Yang, Hamed Abbasizadeh, Oh, Seong Jin, Khan, Zaffar Hayat Nawaz, Seong Oh, Lee, Kang Yoon, Kang Lee, Khan, Danial, Danial Khan, Ahmad, Nabeel, Zaffar Khan, Byeong Jang, Syed Shah, Nabeel Ahmad, Park, Young Jun   +25 more
core   +1 more source