Understanding of self-terminating pulse generation using silicon controlled rectifier and RC load
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Authors
Chang, Chris
Alves, Fabio
Karunasiri, Gamani
Subjects
Advisors
Date of Issue
2016
Date
2016
Publisher
Language
Abstract
Recently a silicon controlled rectifier (SCR)-based circuit that generates self-terminating
voltage pulses was employed for the detection of light and ionizing
radiation in pulse mode. The circuit consisted of a SCR connected in series with
a RC load and DC bias. In this paper, we report the investigation of the physics
underlying the pulsing mechanism of the SCR-based. It was found that during the
switching of SCR, the voltage across the capacitor increased beyond that of the DC
bias, thus generating a reverse current in the circuit, which helped to turn the SCR
off. The pulsing was found to be sustainable only for a specific range of RC values
depending on the SCR’s intrinsic turn-on/off times. The findings of this work will
help to design optimum SCR based circuits for pulse mode detection of light and
ionizing radiation without external amplification circuitry.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1063/1.4940305
Series/Report No
Department
Physics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
The National Consortium for MASINT research (NCMR)
Sam Barone
Sam Barone
Funder
The National Consortium for MASINT research (NCMR)
Format
10 p.
Citation
Chang, Chris, Fabio Alves, and Gamani Karunasiri. "Understanding of self-terminating pulse generation using silicon controlled rectifier and RC load." AIP Advances 6.1 (2016): 015209.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.