NDLI: Fusion Power Supplies using Magnetic Energy Recovery Switch

Content Provider	IEEE Xplore Digital Library
Author	Isobe, T. Takaku, T. Munakata, T. Tsutsui, H. Tsuji-Iio, S. Matsukawa, T. Shimada, R.
Copyright Year	2005
Description	Author affiliation: Res. Lab. for Nucl. Reactors, Tokyo Inst. of Technol. (Isobe, T.; Takaku, T.; Munakata, T.; Tsutsui, H.; Tsuji-Iio, S.)
Abstract	In this paper, a new concept of pulse power supplies that can boost up the pulse current and/or can reduce the voltage rating of the power supplies is proposed. A magnetic energy recovery switch (MERS) consists of four MOSFETs or IGBTs and a capacitor. The MERS is connected in series to a power supply and a coil. The MERS is a switch module and it has no power supply in itself. When the current of coil decrease, the MERS absorbs the magnetic energy stored in the coil and re-generates a high voltage in the capacitor. When the current increases, the MERS adds the voltage to raise currents faster than the time constant of the coil. Because the MERS re-generates a voltage required for the inductance of the coil by using the previous magnetic energy. So, the power supply only has to supply a voltage required for the resistance of the coil. The MERS can reduce a voltage rating and capacity of the power supply. By using the MERS with a power supply of a pulsed magnet, high-repetition pulsed current can be realized with a comparatively small capacity of the power supply. Some applications require a controlled current waveform. By controlling the MERS using PWM, the controlled current waveform is obtained. Operation principles and characteristics of the MERS are described. Some experiments were carried out. Experimental results confirm that the MERS can reduce voltage ratings of power supplies and/or generate high-repetition pulsed boost-up currents
Starting Page	1
Ending Page	4
File Size	4465539
Page Count	4
File Format	PDF
ISBN	0424401596
DOI	10.1109/FUSION.2005.252988
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power supplies Magnetic switching Pulsed power supplies Voltage Switches Coils Space vector pulse width modulation Capacitors Pulse width modulation MOSFETs
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Switching power amplifiers with soft commutation for audio applications

HIGH-POWER KLYSTRON MODULATOR USING A PULSE-FORMING LINE AND MAGNETIC SWITCH

HARDFET MODULATOR

Marx generator using power mosfets

Soft switching power amplifiers for audio applications

Voltage Rating Reduction of Magnet Power Supplies Using a Magnetic Energy Recovery Switch

Design of a high power pulse voltage generator for electrostatic precipitators using magnetic switching technique

2.5 MW average-power crossatron switch operation in a square-wave modulator circuit

Switching power supply for the PFL kicker magnet

Fusion Power Supplies using Magnetic Energy Recovery Switch

Similar Documents

Switching power amplifiers with soft commutation for audio applications

HIGH-POWER KLYSTRON MODULATOR USING A PULSE-FORMING LINE AND MAGNETIC SWITCH

HARDFET MODULATOR

Marx generator using power mosfets

Soft switching power amplifiers for audio applications

Voltage Rating Reduction of Magnet Power Supplies Using a Magnetic Energy Recovery Switch

Design of a high power pulse voltage generator for electrostatic precipitators using magnetic switching technique

2.5 MW average-power crossatron switch operation in a square-wave modulator circuit

Switching power supply for the PFL kicker magnet

Fusion Power Supplies using Magnetic Energy Recovery Switch