Results 11 to 20 of about 688 (209)
Enhanced Computational Efficiency and Accuracy of Discrete-Time PID-DPWM Equation
IEEE AccessThe technique of using the duty cycle output of a proportional integral derivative controller as the input for a count-based digital pulse width modulation module to process digital PWM signals is widely applied across various industrial fields ...
Eungnam Kim, Jin-Young Choi
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Proposed DPWM Scheme with Improved Resolution for Switching Power Converters [PDF]
APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition, 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. Therefore, the dual-clock DPWM scheme is proposed in this paper.
Yang Qiu +4 more
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A Counter-Based DPWM Device with Resolution Extension
Applied Mechanics and Materials, 2011 Counter-based Digital PWM (DPWM), the simplest DPWM device, can be easily implemented only by a counter and a comparator; however, the resolution of the counter-based DPWM is directly proportional to its input reference clock, and thus the higher clock frequency is required, which means higher dynamic power consumption and noise interference may be ...
Hsin Chuan Chen
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A time-delay suppression technique for DPWM control circuit [PDF]
INTELEC 2009 - 31st International Telecommunications Energy Conference, 2009 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 real-time PID control technique for DPWM is described. Some experimental results and simulation results are revealed the proposed circuit and scheme.
Yoichi Ishizuka +3 more
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A Combined DPWM Based on DSOGI-FLL for Switching-Loss Reduction and Dead-Time Compensation
IEEE Access, 2020 High efficiency and high output power quality of converters are always two goals pursued in power electronic systems. In this paper, the conventional discontinuous pulse width modulation (DPWM) for switching-loss reduction and a modified time-based dead ...
Qingzeng Yan +4 more
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IEEE AccessDiscontinuous pulse width modulation (DPWM) is useful to improve the efficiency of a single-phase five-level T-type neutral-point-clamped (5LT-NPC) inverter and the reliability of the power devices.
Kyu-Jin Min, Ui-Min Choi
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DC-link Ripple Reduction in a DPWM-Based Two-Level VSI [PDF]
Energies, 2018 This paper proposes a new method to reduce the ripple current of the DC-link capacitor in a two-level voltage source inverter (VSI), with a discontinuous pulse-width modulation (DPWM).
Anatolii Tcai +3 more
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IEEE Open Journal of Power ElectronicsParalleling three-phase, two-level voltage-sourced converters (2L-VSCs) allows the system to handle higher currents and power levels. In such systems, interleaved switching can be employed to improve output waveform quality, reduce filtering requirements,
Tharindu Senavirathna +2 more
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High Efficiency Solar Power Generation with Improved Discontinuous Pulse Width Modulation (DPWM) Overmodulation Algorithms [PDF]
Energies, 2019 The efficiency of a photovoltaic (PV) system strongly depends on the transformation process from solar energy to electricity, where maximum power point tracking (MPPT) is widely regarded as a promising technology to harvest solar energy in the first step.
Lan Li +6 more
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TMS320F2812 Digital Signal Processor (DSP) implementation of DPWM
2009 IEEE Student Conference on Research and Development (SCOReD), 2009 This paper presents the programming and use of TMS320F2812 Digital Signal Processor (DSP) in generating the Digital Pulse Width Modulation (DPWM). The structure and functions of eZdsp 2812 board used in this work is explained briefly and the steps need to be taken for the programming is explain in detail to control the frequency, the duty cycle and ...
M. F. N. Tajuddin +6 more
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