Electric and thermal characteristics of repeated sliding electric contact interface under high pulse current

2015 ◽  
Vol 27 (5) ◽  
pp. 55007 ◽  
Author(s):  
朱仁贵 Zhu Rengui ◽  
张倩 Zhang Qian ◽  
李治源 Li Zhiyuan ◽  
王瑞林 Wang Ruilin ◽  
邢彦昌 Xing Yanchang ◽  
...  
Keyword(s):  
Pulse Current ◽  
Thermal Characteristics ◽  
Electric Contact ◽  
Contact Interface ◽  
Sliding Electric Contact ◽  
High Pulse

Electric Contact Stability and Wear Durability at a Nanoscale Sliding Electric Contact

2013 ◽  
Vol 133 (6) ◽  
pp. 229-236
Author(s):  
Yasushi Tomizawa ◽  
Yongfang Li ◽  
Akihiro Koga ◽  
Hiroshi Toshiyoshi ◽  
Yasuhisa Ando ◽  
...  
Keyword(s):  
Electric Contact ◽  
Contact Stability ◽  
Sliding Electric Contact

Calculation Method of Damage Parameters on High Speed Sliding Electric Contact Component Surface

2017 ◽  
Vol 44 (5) ◽  
pp. 0504007
Author(s):  
张玉燕 Zhang Yuyan ◽  
郭全丽 Guo Quanli ◽  
杨德功 Yang Degong ◽  
王振春 Wang Zhenchun
Keyword(s):  
Calculation Method ◽  
High Speed ◽  
Electric Contact ◽  
Sliding Electric Contact

PACKAGING AND WIDE-PULSE SWITCHING OF 4 MM × 4 MM SILICON CARBIDE GTOs

2009 ◽  
Vol 19 (01) ◽  
pp. 173-181
Author(s):  
HEATHER O'BRIEN ◽  
M. GAIL KOEBKE
Keyword(s):  
Silicon Carbide ◽  
Recovery Time ◽  
Pulse Current ◽  
Pulse Discharge ◽  
Single Pulse ◽  
Electronic Components ◽  
Army Research Laboratory ◽  
Pulse Switching ◽  
Reliable Performance ◽  
High Pulse

The U. S. Army Research Laboratory (ARL) is investigating compact, energy-dense electronic components to realize high-power, vehicle-mounted survivability and lethality systems. These applications require switching components that are low in weight and volume, exhibit reliable performance, and are easy to integrate into the vehicles' systems. The devices reported here are 4 mm × 4 mm silicon carbide GTOs rated for 3000 V blocking. These devices were packaged at ARL for high pulse current capability, high voltage protection, and minimum package inductance. The GTOs were switched in a 1-ms half-sine, single-pulse discharge circuit to determine reliable peak current and recovery time (or Tq). The GTOs were repeatedly switched over 300 A peak (3.3 A/cm2 and an action of 60 A2s) with a recovery time of 20 µs. The switches were also evaluated for dV/dt immunity up to an instantaneous slope of 3 kV/ µs.

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