Results 21 to 30 of about 688 (209)

An DPWM for Active DC-Link Type Quasi-Z-Source Inverter to Reduce Component Voltage Rating

open access: yesEnergies, 2022
The conventional DC-link type quasi-Z-source inverter has been known as a buck–boost inverter with a low component voltage rating. This paper proposes an active DC-link type quasi-Z-source inverter by adding one active switch and one diode to the ...
Duc-Tri Do, Vinh-Thanh Tran, Khai Nguyen
doaj   +2 more sources

Intracerebral Hemorrhage in Autosomal Dominant Cerebral Arteriopathy With Subcortical Infarcts and Leukoencephalopathy. [PDF]

open access: yesEur J Neurol
ABSTRACT Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is the most common hereditary cerebral small vessel disease (CSVD). Intracerebral hemorrhage (ICH) is reported to be increasing in CADASIL patients from areas where the p.R544C mutation is prevalent (e.g., Jeju and Chinese Taiwan ...
Hu F   +11 more
europepmc   +2 more sources

Simulation of Counter Based DPWM for Implementation on FPGA

open access: yesAIJR Proceedings, 2021
A Digital Pulse Width Modulation technique based on the counter has been considered for analysis and simulation. It utilizes one of the many functions due to the advanced characteristics already present on the field-programmable gate array (FPGA) which is a huge advantage. Delay Locked Loop (DLL) is one of those features on the FPGA that is used.
Vindhyali Sood, MPR Prasad
openaire   +1 more source

Linearized 9-Bit Hybrid LBDD PWM Modulator for Digital Class-BD Amplifier [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2021
The paper presents an original architecture and implementation of 9-bit Linearized Pulse Width Modulator (LPWM) for Class-BD amplifier, based on the hybrid method using STM32 microcontroller and Programmable Tapped Delay Line (PTDL).
Wojciech Kołodziejski   +1 more
doaj   +1 more source

High Frequency Passivity Properties of Grid-Connected Admittance With Double-Sampling Asymmetric Dual-Edge Modulator

open access: yesIEEE Open Journal of Power Electronics, 2022
Small-signal stability and dynamic interactions among power electronic converters (PECs) and electrical grids are widely analyzed using the impedance-based approach.
Ruzica Cvetanovic   +5 more
doaj   +1 more source

Carrier-Based Discontinuous PWM Method for Five-Leg Inverter

open access: yesIEEE Access, 2020
This paper proposes a rotation carrier-based discontinuous pulse width modulation (CB-DPWM) method for the five-leg inverter (FLI). The FLI based on two-level topology consists of 10 switching devices for driving dual motors.
June-Hee Lee   +2 more
doaj   +1 more source

Nonlinear Adaptive Control with Asymmetric Pressure Difference Compensation of a Hydraulic Pressure Servo System Using Two High Speed On/Off Valves

open access: yesMachines, 2022
A hydraulic pressure servo system based on two high-speed on/off valves (HSV) is a discontinuous system due to the discrete flow of HSV when driven by pulse width modulation (PWM) signal.
Qiang Gao
doaj   +1 more source

Discontinuous PWM Techniques of Three-Leg Two-Phase Voltage Source Inverter for Sonar System

open access: yesIEEE Access, 2020
Pulse width modulation (PWM) methods are important for the detection performance of a sound navigation and ranging (sonar) system because they determine the output noise of the system.
Jaehyuk Choi, Dong-Hun Lee, Hyungsoo Mok
doaj   +1 more source

Research and Development of Adjustable Discontinuous Pulse Width Modulation Method for Three-Phase Voltage Source Inverter

open access: yesEnergies, 2022
Continuous pulse width modulation (CPWM) and discontinuous pulse width modulation (DPWM) strategies are used to control voltage source inverter operation.
Andrey Dar’enkov   +4 more
doaj   +1 more source

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

open access: yesIEEE 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   +2 more
doaj   +1 more source

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