Results 31 to 40 of about 829 (203)

Minimum Loss Discontinuous Pulse-Width Modulation Per Phase Method for Three-Phase Four-Leg Inverter

IEEE Access, 2020
The three-phase four-leg inverter (TPFLI) provides unbalanced voltage to a load or injects unbalanced current to a grid to compensate unbalanced current. However, it has a high switching loss because of the fourth leg. This paper presents a discontinuous
Soo Yeon Kim, Sung Geun Song, Sung Jun Park   +2 more
doaj   +1 more source

± 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

Proposed DPWM scheme with improved resolution for switching power converters

, 2007
-Because of the need to eliminate the limit-cycle oscillations, a high-resolution DPWM scheme is mandatory, especially for the applications with high switching frequency and tight output regulation.
Dong S. Ha, Jian Li, Ming Xu, Fred C. Lee, Yang Qiu   +4 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 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

Recent Advances in Hybrid, Plug‐In, Battery, and Fuel Cell EVs: Control Schemes, Modes, Converter Topologies, and Pros and Cons

IET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Direct current (DC)–DC converters are the backbone of electric vehicle (EV) power trains, enabling efficient and bidirectional energy flow between the battery, high‐voltage (HV) DC link, and auxiliary rails under tight isolation, gain, ripple, and electromagnetic interference (EMI) constraints.
Abhilash Sakhare, Suresh Mikkili, Praveen Kumar Bonthagorla, Fabio Crescimbini   +3 more
wiley   +1 more source