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Thursday, July 23, 2020 | History

2 edition of Ultra-fast and high-effienciency DC/DC conversion for data processing circuits. found in the catalog.

Ultra-fast and high-effienciency DC/DC conversion for data processing circuits.

Shuo Chen

Ultra-fast and high-effienciency DC/DC conversion for data processing circuits.

by Shuo Chen

  • 38 Want to read
  • 40 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.A.Sc.) -- University of Toronto, 2003.

SeriesCanadian theses = -- Thèses canadiennes
The Physical Object
Pagination microfiches : negative.
ID Numbers
Open LibraryOL21137638M
ISBN 100612842681

This study presents a four-phase interleaved high voltage conversion ratio bidirectional DC-DC converter circuit based on coupled inductors and switched capacitors, which can eliminate the defects of conventional high voltage conversion ratio bidirectional DC-DC converters in terms of high-voltage/current stress, less efficiency and low-power by: 3. A high-efficiency low-power chip-based liquid crystal (LC) driver has been successfully designed and implemented for adaptive electro-optic eyewear including tunable vision correction devices (eyeglass, contact lens, intraocular lens, occluder, and prism), phoropter, iris, head-mounted display, and 3D imaging. The driver can generate a 1 kHz bipolar square wave with magnitude tunable from 0 V Author: Hai Deng, Guoqiang Li.

However, with the emergence of legislation such as 80 PLUS, Climate Savers, and EnergyStar 5, designers are realizing that both the ac/dc and dc/dc power systems are in need of improvement. With ac/dc system efficiencies averaging around 65% and dc/dc system efficiencies at 80%, it is understandable that more weight has been placed on ac/dc. Several basic dc-dc converter circuits are shown in Fig. 3. The buck converter, Fig. 3(a), reduces the dc voltage magnitude, and is used as an example here to reduce a four-cell battery voltage (V minimum) to a regulated V dc. The boost converter, Fig. 3(b), is commonly used to increase the voltage.

for the rest of the circuitry. The following two circuits provide regulated step-up and step-down DC/DC con-version and consume extremely low quiescent current. 2-Cell to 5V Conversion with IQ = 12μA The circuit in Figure 1 produces a regulated 5V output from a 2V to 5V input and consumes only 12μA (typi-cal) of supply current. ECE Final Project. Hybrid Digital Pulse Width Modulator for DC/DC Converters. Marian Chang. 1. Introduction. The objective of this project is to implement the digital pulse width modulator (DPWM), dead-time generator and gate drive portions of a DC/DC converter as shown in figure the specifications are shown in table 2.


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Ultra-fast and high-effienciency DC/DC conversion for data processing circuits by Shuo Chen Download PDF EPUB FB2

The DC-DC Converter Handbook is intended for power-system designers who employ GaN (gallium nitride) power transistors. It supplements GaN Transistors for Efficient Power Conversion, which was published in This new book emphasizes use of enhancement mode GaN, called eGaN power transistors, for dc-dc power conversion.5/5(2).

High efficiency is achieved because the leakage energy is recycled and the output rectifier reverse-recovery problem is alleviated.

Index Terms— Coupling inductor, dc–dc conversion, reverse re-covery, voltage gain. INTRODUCTION MANY applications powered by batteries call for high-performance, high step-up dc–dc converters.

As an ex. Highly efficient and compact DC-DC converter for ultra-fast charging of electric vehicles Abstract: The range of electric vehicles is still limited due to long charging times. With fast charging stations that enable to recharge a vehicle battery in a few minutes, the range limitation can be overcome in.

buck DC-DC converter,” IEEE Radiation Effects Data Workshop (REDW), Paris, France, Jul. [3] J. Ramos-Martos, A. Arias-Drake, et al., “Evaluationof the AMS um CMOS Technology for Use in Space Applications,” the 4th International Workshop on Analog and Mixed-Signal.

The LTM triple output DC/DC system is described, which includes not only the regulator ICs but also the supporting components such as inductors, compensation circuits, capacitors and resistors, replacing up to 30 discrete components when compared to a triple-output high efficiency DC/DC circuit. High efficiency high step-up DC/DC converters - A review Article (PDF Available) in Bulletin of the Polish Academy of Sciences, Technical Sciences 59(4) December with 2, Reads.

Low voltage high-efficiency DC-DC conversion circuits are integral components of battery operated portable systems. This paper presents the design of a pulse width modulated (PWM) controller for a. The design considerations for high-speed data conversion are, in many ways, similar to those for data conversion in general.

High speed circuits may sometimes seem different because device types can be limited and only certain design techniques and architectures can be used with success. But the basics are the same. High speed circuits or. Switching regulators are the most efficient way to convert one DC/DC voltage to another.

And across all non-isolated DC/DC topologies – buck, boost, buck/boost, and inverting – TI helps you innovate and differentiate your power supply design with the industry’s largest and most diverse selection of power modules, converters, and controllers.

11/1/ IEEE SSCS - Oct. 3 DC-DC Converter Basics DC-DC Converter is a Voltage Regulator Use Switches, Inductor and Capacitor for Power Conversion Switched Mode Operation Why DC-DC Converters.

High Efficiency Can Step-Down, Step-up, or Both, File Size: KB. Contents include more application notes on power management, and data conversion and signal conditioning circuit solutions, plus an invaluable circuit collection of reference designs Show less This is the companion volume to the successful Analog Circuit Design: A Tutorial Guide to Applications and Solutions (October ), which has sold over.

Ultra-High Efficiency DC-DC Switching Converter Circuit The Ridgetop DC-DC switch-ing converter/power supply design meets demanding requirements for size, efficiency, and voltage range, and greatly exceeds the performance of similar commercial products.

Combined with modern CMOS processing tech-nology, ultra-small form factors can now be achieved. Transformer has advantages like high efficiency, high power density, low EMI, reduced switching stresses, high circuit efficiency and stable output voltage.

The above values are found to be a near optimum for the design specifications. Fig 2 DC-DC Converter with Transformer Fig 3 DC-DC Converter without TransformerFile Size: 1MB.

DC/DC Converter Selection Guide 06 BD9DQWZ Input voltage range : V to 18V Output voltage range : V to V Reference voltage : V±% Output current : 3A Switching frequency : kHz Built-In switching FET : 80mΩ, 50mΩ Quiescent current : mA Fast transient response characteristics via fixed ON time controlFile Size: 5MB.

up, high frequency, DC-DC converter with a high efficiency (approximately 94%), low idle losses ( W), and low cost.

All active circuit components work in ZCS and/or ZVS. The principal circuit is a resonant topology, with no energy re-circulation, where control is done by varying commutation frequency from idle to % load, and by soft. Energy consumption of the DC-DC converter/processor system is proportional to the DC-DC's conversion efficiency.

Thus, supplying the NT voltage with high efficiency is essential in realizing ultra-low-energy consumption. High efficiency over an increasingly large power range (due to large differences in sleep and active power levels) also. High-efficiency, high step-up DC-DC converters Abstract: Many applications call for high step-up DC-DC converters that do not require isolation.

Some DC-DC converters can provide high step-up voltage gain, but with the penalty of either an extreme duty ratio or a Cited by: Converter circuit topologies A large number of dc-dc converter circuits are known that can increase or decrease the magnitude of the dc voltage and/or invert its polarity [].

Figure 4 illustrates several commonly used dc-dc converter circuits, along with their respective conversion ratios. In each example, the switch is realized using a power.

>50 kW DC-DC Converter Interface converter between battery storage and Grid-tied inverter Fully qualify DC-DC converter for use in commercial applications Design and develop a high efficiency (>98%) power dense (>10 kw/L) bidirectional GaN based DC-DC converter for energy storage applications.

A DC-to-DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power levels range from very low (small batteries) to very high (high-voltage power transmission).

Circuit collection, volume III: data conversion, interface and signal processing (36) Part Three. Circuit collection, volume V: data conversion, interface and signal conditioning products (38) Signal sources, conditioners and power circuitry (39) Current sense circuit collection (40) Power conversion, measurement and pulse circuits (41) Chapter OPTIMAL DC POWER DISTRIBUTION SYSTEM DESIGN FOR DATA CENTER WITH EFFICIENCY IMPROVEMENT by Xuechao Wang The University of Wisconsin-Milwaukee, Under the Supervision of Professor Adel Nasiri Data Center Power Distribution design is very popular today focusing on improved energy efficiency and reduced operating cost.His research interests include analog/mixed-signal integrated circuit design and testing, signal-processing algorithms, charge pump circuits and DC–DC converters.

Takashi Nabeshima is a professor in the Department of Electric and Electronic Engineering, Oita University, Japan. He received his B.S. and M.S. in electronic engineering from Format: Hardcover.