Experiments concerning the life testing of semiconductor devices—II. Life testing of transistors in switching operation mode

1971 ◽  
Vol 10 (2) ◽  
pp. 75-93 ◽  
Author(s):  
A.P. Kemény
Keyword(s):  
Semiconductor Devices ◽  
Operation Mode ◽  
Life Testing ◽  
Switching Operation

Non-Isolated High Step-up DC-DC Converter with a Coupled Inductor

2012 ◽  
Vol 424-425 ◽  
pp. 1024-1027 ◽  
Author(s):  
Hyun Lark Do
Keyword(s):  
High Efficiency ◽  
Semiconductor Devices ◽  
Soft Switching ◽  
Voltage Gain ◽  
Switching Loss ◽  
Switching Operation ◽  
Zero Voltage Switching ◽  
Zero Current Switching ◽  
Zero Current ◽  
And Performance

A non-isolated high step-up DC-DC converter with a coupled inductor is proposed in this paper. The proposed converter provides high voltage gain and soft-switching operation of all semiconductor devices. A voltage doubler and a coupled inductor increase the voltage gain. Zero-voltage-switching (ZVS) of all switches and zero-current-switching (ZCS) of all diodes are achieved. Also, the voltages across the semiconductor devices are effectively clamped. Due to the soft-switching operation of all switching devices, the switching loss is significantly reduced and the high efficiency is obtained. The feasibility and performance of the proposed converter were verified on an experimental prototype

Life Testing of Ni-YSZ Fuel Electrodes under Electrolysis, Fuel Cell, and Current Switching Operation

2017 ◽  
Vol 78 (1) ◽  
pp. 3179-3188 ◽  
Author(s):  
Qinyuan Liu ◽  
Hongqian Wang ◽  
David Kennouche ◽  
Casey Riscoe ◽  
Danielle Butts ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Life Testing ◽  
Switching Operation ◽  
Current Switching

Optimization of Control Parameters with Switching Operation Mode on Hybrid Brake System for Electric Vehicles

2012 ◽  
Vol 214 ◽  
pp. 213-218
Author(s):  
Ren He ◽  
Jian Bo Yu ◽  
Run Cai Wang
Keyword(s):  
Electric Vehicles ◽  
Operation Mode ◽  
Optimization Method ◽  
Force Distribution ◽  
Switching Operation ◽  
Braking System ◽  
Safe Area ◽  
Braking Force ◽  
Braking Control ◽  
Set Up

The safe area of braking force distribution was established theoretically by analyzing braking dynamics and the ECE R13 rules for hybrid braking system on electric vehicles. In the safe area, aiming for maximum of braking energy recovery, based on the precondition of ECE R13 and braking stability, an optimized method of motor regenerative braking force and friction braking force distribution was put forward for hybrid braking system, in which the distribution of friction braking force applied to the front and rear axle are fixed. Taking the coordinate of point with switching operation mode and rake ratio of braking force distribution as optimization target, new model of braking control strategy was set up in ADVISOR2002 and simulation was carried out, at last the optimization method was verified.

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