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Application of NTC Thermistors in Radio Frequency Protection of Semiconductor Bridge Initiators

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年01期
Page:
171-175
Research Field:
Publishing date:

Info

Title:
Application of NTC Thermistors in Radio Frequency Protection of Semiconductor Bridge Initiators
Author(s):
CHEN Fei; ZHOU Bin; QIN Zhi-Chun
School of Chemical Engineering,NUST,Nanjing 210094,China
Keywords:
initiators;  semiconductor bridge;  anti-radio frequency interference;  negative temperature coefficient;  thermistors
PACS:
TQ567
DOI:
-
Abstract:
In order to improve the anti-radio frequency interference performance of semiconductor bridge(SCB)initiators,thermistors with the negative temperature coefficient(NTC)are used to be in parallel with the SCBs.Infrared micro-thermometric technology,1A1W5min experiment,radio frequency(RF)sensitivity experiment and capacitor discharge firing experiment are used.The research results indicate that the NTC thermistor can decrease the temperature of bridge areas.SCBs in parallel with thermistors do not fire under 1A1W5min and 22W RF power.After the RF sensitivity experiment,capacitor discharge can normally ignite the SCB initiators.NTC thermistors can effectively improve the anti-RF interference performance of SCBs and do not affect the firing property.Adopting NTC thermistors for the RF reinforcement is a novel and feasible method to protect SCB initiators.

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Last Update: 2012-10-12