NDLI: Series Stacked Switches for Radar Transmitters

Content Provider	IEEE Xplore Digital Library
Author	Okula, D.
Copyright Year	2006
Description	Author affiliation: Ipswich Associates, MA (Okula, D.)
Abstract	In pulsed radar transmitters, the modulator is the key interface to the vacuum electronic device. Modern modulators use the series connection of semiconductors for high voltage switches. Stacked IGBTs are used for high current and low repetition rate applications, and stacked MOSFETs are used for low current and high repetition rate. For reliable operation, a series stacked switch needs to have voltage balance during static and dynamic conditions. One approach to achieve this balance is to use voltage grading resistors and capacitors. However, if poorly selected, this approach may have high power losses and not be compact. Because of the need for compact designs, this paper describes methods to equalize the voltage distribution for each switch. For MOSFET switches, this paper describes modulator design, protection, Miller effect, voltage balance due to parasitic capacitance, and thermal design. For reliable designs over large operating temperature ranges, this paper identifies the need for an integrated design that addresses all of the power losses in the switch and describes a metric for efficient designs, dissipation density ratio
Starting Page	256
Ending Page	259
File Size	604457
Page Count	4
File Format	PDF
ISBN	142440018X
ISSN	1930885X
DOI	10.1109/MODSYM.2006.365231
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar Transmitters Voltage Pulse modulation MOSFETs Insulated gate bipolar transistors Power semiconductor switches Resistors Capacitors Protection
Content Type	Text
Resource Type	Article

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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
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