9,956 Hits in 5.2 sec

High speed DC-DC dead time architecture

Jani Järvenhaara, Hans Herzog, Sami Sipilä, Jing Tian, Igor M. Filanovsky, Nikolay T. Tchamov
2015 IEICE Electronics Express  
A novel and simple solution for adjusting dead time in high speed DC-DC converters is proposed. The usual dead time adjustment of DC-DC converters through feedback control has limited speed.  ...  A 240 MHz DC-DC converter with the presented dead time circuit is designed on low-voltage fast CMOS process.  ...  Introduction One of the challenges in fully integrated, high speed DC-DC converters is to achieve correct dead time between driving signals [1, 2] .  ... 
doi:10.1587/elex.12.20150662 fatcat:ld5emtgmhnbftims2dkjtrdqre

Microcomputer Based Smart Engine Ignition Control System for Motorcycles

Ching-Biau Tzeng, Tzuu-Shaang Wey, Tsung-Yu Su
2008 2008 Eighth International Conference on Intelligent Systems Design and Applications  
The 8-bit single chip microcomputer is implemented to read the crankshaft speed signal and camshaft baseline signal.  ...  Through a programmable and controllable ignition angle technique to improve the ignition efficiency for the DC capacitive discharge ignition (CDI) system.  ...  DC-CDI ignition maintains a higher ignition voltage than that of the traditional one; especially during high-speed rotation, DC-CDI has a much higher discharging energy.  ... 
doi:10.1109/isda.2008.307 dblp:conf/isda/TzengWS08 fatcat:q6xivf7aanckbjnuq3amuknk44

Design of an H-bridge driver without dead-time generation using gate bias

Hsin-Chuan Chen, Rong-San Lin
2013 IEICE Electronics Express  
Conventional Hbridge drivers require dead-time generation to avoid the shootthrough current resulting from both upper and lower power transistors being turned on concurrently.  ...  They also play an important role in technologies related to DC motor control.  ...  However, the existence of dead time will affect the performance of the controlled device, especially the high-speed switching of power transistors.  ... 
doi:10.1587/elex.10.20130656 fatcat:ez756yv73fhcvldm3ny3xnaaqq

Design of Soft-Switching Hybrid DC-DC Converter with 2-Phase Switched Capacitor and 0.8nH Inductor for Standard CMOS Process

Minho Choi, Deog-Kyoon Jeong
2020 Electronics  
The proposed adaptive timing generator digitally calibrates the turn-on delay of switches to achieve a complete soft-switching operation.  ...  A soft-switching hybrid DC-DC converter with a 2-phase switched capacitor is proposed for the implementation of a fully-integrated voltage regulator in a 65 nm standard CMOS process.  ...  The high-speed capacitive level shifter is used to generate the minimum dead time between the high-side switch and the low-side switch for reliable operation.  ... 
doi:10.3390/electronics9020372 fatcat:7vrhasf55vetnj2cpbuu2swxly

The Design of DSP Electric Vehicle Charging Power Supply

Long Jianning
2018 Vehicle Dynamics  
It can save the oil energy at the same time, so the battery charge is very important.  ...  In today's society, the speed of industrialization is accelerating, and communications between cities are becoming frequent and closer. It is fast and convenient to promote these rapid developments.  ...  better performance, how cleverly designed to achieve the complexity of DSP and high speed coexistence at the same time is an urgent problem to be solved.  ... 
doi:10.18063/vd.v1i1.492 fatcat:pg3n7rkx3ndubc7jdpft3n3nte

A Single Inductor Dual Output Synchronous High Speed DC-DC Boost Converter using Type-III Compensation for Low Power Applications

Abbas Syed Hayder, Hyun-Gu Park, Hongin Kim, Dong-Soo Lee, Hamed Abbasizadeh, Kang-Yoon Lee
2015 IEIE Transactions on Smart Processing and Computing  
The phase is controlled in time sharing manner for each output. The controller used here is Type-III, which ensures quick settling time and high stability.  ...  This paper presents a high speed synchronous single inductor dual output boost converter using Type-III compensation for power management in smart devices.  ...  Switching speed of MOSFET devices is calculated by the time required to charge/discharge the gate capacitor. Therefore, parallel multiple MOSFET's can be used to achieve a high switching speed.  ... 
doi:10.5573/ieiespc.2015.4.1.044 fatcat:hl5kdj64tfgkvkvy2a2xqqypvq

Implementation of a bang-bang strategy for PV system connected to the grid

B. Efker, A. Martinez, H.M. Reddy
2008 The Renewable Energies and Power Quality Journal (RE&PQJ)  
The inverter presented in this paper utilizes higher order DC filtering and is made of a single stage topology utilizing PI regulators to control the Maximum Power Point (MPP).  ...  This zero-crossing distortion is mainly due to dead time when all switches in the H-Bridge are off (dead-time).  ...  Since the inverter's dead (switching changeover) time is high (due to H-Bridge configuration), the time constant for the regulator is set to 0.05s for closed loop. 0.2 1 ( ) 0.4 s F s s + = (8) III.  ... 
doi:10.24084/repqj06.225 fatcat:touihd6lvbhydde2st4yjlvzhe

Dithering Skip Modulation, Width and Dead Time Controllers in Highly Efficient DC-DC Converters for System-On-Chip Applications

Hong-Wei Huang, Ke-Horng Chen, Sy-Yen Kuo
2007 IEEE Journal of Solid-State Circuits  
Therefore, a highly efficient tri-mode DC-DC converter is invented in this paper for system-on-chip (SoC) applications, which is switched to sleeping mode at very light load condition or to high-speed  ...  Owing to the effective mitigation of the switching loss contributed by optimum power MOSFET width and reduction of conduction loss contributed by optimum dead-times, the novel width and dead-time controllers  ...  ARCHITECTURE OF BUCK DC-DC CONVERTER WITH DSM MODE Fig. 2 shows the architecture of a buck DC-DC converter modulated by a tri-mode controller, which is composed of PWM, PFM, and DSM modulation modes.  ... 
doi:10.1109/jssc.2007.907175 fatcat:hbumu52kpncf3ewkon6n3yjrwm

Predictive Direct Torque Control Application-Specific Integrated Circuit of an Induction Motor Drive with a Fuzzy Controller

2017 Journal of Low Power Electronics and Applications  
These delay times degrade the control quality and increase both torque and flux ripples in a motor drive.  ...  The proposed fuzzy PDTC ASIC calculates the stator's magnetic flux and torque by detecting the three-phase current, three-phase voltage, and rotor speed, and eliminates the ripples in the torque and flux  ...  First, the "Up" signal is low (0) from high (1) when the control signal turns off (1→0); and the "Down" signal is high (1) from low (0) when the dead time (∆T) is up.  ... 
doi:10.3390/jlpea7020015 fatcat:r42zyemob5h3xcgroqtgu3nyfe

A sliding mode current control scheme for PWM brushless DC motor drives

Jessen Chen, Pei-Chong Tang
1999 IEEE transactions on power electronics  
Single-side firing solves the dead-time problem, allowing the PWM frequency to be increased and the sampling rate to be raised.  ...  This paper proposes a sliding mode current control scheme for pulsewidth modulation (PWM) brushless dc motor drives. An improved "equivalent control" method is used in this scheme.  ...  Recently, many high-speed devices, such as insulated gate bipolar transistors (IGBT's) and MOSFET's, have been developed, however, they still require switching dead time around 1-2 ms.  ... 
doi:10.1109/63.761698 fatcat:m24odsekwrhuxbemudv5pw3yhm

Speed Control of Multi Level Inverter Designed DC Series Motor with Neuro-Fuzzy Controllers [article]

G. MadhusudhanaRao, B. V. SankerRam
2009 arXiv   pre-print
This paper describes the speed control of a DC series motor for an accurate and high-speed performance. A neural network based controlling operation with fuzzy modeling is suggested in this paper.  ...  The driver units of these machines are designed with a Multi-level inverter operation and are controlled by a common current control mechanism for an accurate and efficient driving technique for DC series  ...  The inverter performance is very much reliable because there are natural dead times for each transistor.  ... 
arXiv:0912.3962v1 fatcat:7rbzi65wyjdzzdzqv7qmg34oxy

GaN-on-Si: Monolithically Integrated All-GaN Drivers for High-Voltage DC-DC Power Conversion

Chin Hsia, Deng-Fong Lu
2022 Applied Sciences  
This paper presents a novel integrated half-bridge driver architecture using GaN-on-Si process for high-speed and high-voltage DC-DC converters.  ...  The rise and fall times of the high-voltage pulse wave operating at a peak voltage of 200 V are 54.4 ns and 57.6 ns, respectively.  ...  Since the lowside power switch is switched on/off complementarily after the high-side switch through the dead-time control, the on-time of VH and VL can be set to avoid the shoot-through current of the  ... 
doi:10.3390/app12105109 fatcat:hjt5ftue3rfc5lzvdaf6wm6s2u

Design of FPGA-Based SHE and SPWM Digital Switching Controllers for 21-Level Cascaded H-Bridge Multilevel Inverter Model

Emilia Noorsal, Asyraf Rongi, Intan Rahayu Ibrahim, Rosheila Darus, Daniel Kho, Samsul Setumin
2022 Micromachines  
Multilevel inverters are a type of power electronic circuit that converts direct current (DC) to alternating current (AC) for use in high-voltage and high-power applications.  ...  In conclusion, the proposed simplified design architectures of SHE and SPWM digital switching controllers have been proven to not only require minimal logic resources, achieve high processing speeds, and  ...  the dead-time duration.  ... 
doi:10.3390/mi13020179 pmid:35208304 pmcid:PMC8876957 fatcat:tlnxohdylvgrfo3lvlgylernzu

Data-Driven Efficiency Modeling and Analysis of All-Electric Ship Powertrain; A Comparison of Power System Architectures

Pramod Ghimire, Mehdi Zadeh, Jarle Thorstensen, Eilif Pedersen
2021 IEEE Transactions on Transportation Electrification  
Then, the analysis is extended for different power system architectures such as AC-and DC onboard power systems.  ...  Further, the DC hybrid power system can improve the efficiency of the whole ship powertrain thanks to the variable speed operation of engines.  ...  Further, battery hybridization in a gas engine-driven power system considerably increases efficiency for the low loads and at low-speed; however, it may not increase efficiency in high loads and at high-speed  ... 
doi:10.1109/tte.2021.3123886 fatcat:hcvlm7tiq5bbre6efk4gs2bkgm

Tool for Control Systems Development based on IoT (IoTControl)

Danilo Oliveira Martins, Almir Fernandes, Alexandre Brincalepe Campo
2020 Zenodo  
allow the configuration of parameters and graphical analysis of the controller in real time.  ...  This work presents the development of a tool for control systems, capable to configure the control parameters without process stop and allow remote access operation based on the architecture of IoT.  ...  plant of DC motor speed control.  ... 
doi:10.5281/zenodo.4317130 fatcat:dhtpto4eerb3toyzq4duktogaa
« Previous Showing results 1 — 15 out of 9,956 results