scholarly journals A digital‐controlled gate charge detection circuit for short‐circuit protection and condition monitoring of SiC MOSFET

2022 ◽  
Author(s):  
Shan Yin ◽  
Yinyu Liu ◽  
Xiong Xin ◽  
Yingzhe Wu ◽  
Hui Li
Keyword(s):  
Condition Monitoring ◽  
Short Circuit ◽  
Charge Detection ◽  
Detection Circuit ◽  
Gate Charge

Design and Implementation of Actuator Controller for Greenhouse Control System

2014 ◽  
Vol 532 ◽  
pp. 62-69
Author(s):  
Yi Chuan Gao ◽  
Guo Chang Liu
Keyword(s):  
Control System ◽  
Short Circuit ◽  
Alternating Current ◽  
Electric Arc ◽  
Zero Crossing ◽  
Three Phase ◽  
Detection Circuit ◽  
Task Program ◽  
Current Zero ◽  
Greenhouse Control

A novel actuator controller for greenhouse control system is proposed in this paper. This controller can solve the problems existing in traditional greenhouse control system such as generating electric arc, short circuit risk, lack of communication and smart ability. We adopt five separate magnetic latching relays to control the three-phase motor. In order to prevent generating electric arc in the process of turning off relay, the alternating current zero-crossing detection circuit is designed. In software side, the relay-off task program is running in the real-time operating system, which can ensure turn-off operation at the point of alternating current zero-crossing. In addition, the controller is capable of detecting motors operation parameter and having multiple communication interfaces. Finally, we implement our controller in practice and experimental results meet the design requirements.

scholarly journals Short-Circuit Protection Method Based on a Gate Charge Characteristic

2015 ◽  
Vol 4 (4) ◽  
pp. 360-369 ◽  
Author(s):  
Takeshi Horiguchi ◽  
Shin-ichi Kinouchi ◽  
Yasushi Nakayama ◽  
Takeshi Oi ◽  
Hiroaki Urushibata ◽  
...  
Keyword(s):  
Short Circuit ◽  
Protection Method ◽  
Charge Characteristic ◽  
Gate Charge

Multi-Frequency Acoustic Signal Under Short-Circuit Transient and Its Application on the Condition Monitoring of Transformer Winding

2019 ◽  
Vol 34 (4) ◽  
pp. 1666-1673 ◽  
Author(s):  
Yuhang Shi ◽  
Shengchang Ji ◽  
Fan Zhang ◽  
Fuqiang Ren ◽  
Lingyu Zhu ◽  
...  
Keyword(s):  
Condition Monitoring ◽  
Acoustic Signal ◽  
Short Circuit ◽  
Transformer Winding

Design of a High Precision Integrated Charge Detection Circuit Based on Quartz Gyroscope

2011 ◽  
Vol 317-319 ◽  
pp. 1143-1148
Author(s):  
Yi Jiang Cao ◽  
Er Dong Zhang ◽  
Qian Cui ◽  
Xiao Wei Liu
Keyword(s):  
Open Loop ◽  
Velocity Signal ◽  
Charge Detection ◽  
Op Amp ◽  
Process Use ◽  
Detection Circuit ◽  
Output Noise ◽  
Voltage Signal ◽  
Cascade Structure ◽  
Simulation Results

Used Three-stage op amp to design a good performance CMOS integrated charge detection based on quartz gyroscope. In the circuit design, using the PMOS full-differential input and the folded cascade structure, through adjusting the transistor parameters to reduce noise and improve the gain; .Set each transistor’s parameters based on 0.5µm process, use H-Spice software in detection circuit and demodulation circuit for simulation, parameter adjustment and verification. The simulation results contain: the open-loop gain gets to 128.13dB, phase margin 88°, SR gets to 2V/µs, the output noise is 38nV/ at 10kHz frequency, full output swing. The simulation results of output signal show that each 5×10-15C change of input charge amount can provide about 1mV change of output voltage. The voltage signal that obtained by the demodulation circuit compares with the input angular velocity signal has a very highly linearity.

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