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Influence and Suppression of Conducted EMI from DriveVoltage Overshoot on the Actuator Systems(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2019年04期
Page:
44-48
Research Field:
2019全国集成电路可靠性学术会议专栏
Publishing date:

Info

Title:
Influence and Suppression of Conducted EMI from DriveVoltage Overshoot on the Actuator Systems
Author(s):
Wang Zhuang; Lü Hong; Chen Yang
(Nanjing Research Institute on Simulation Technique,Nanjing 20016,China)
Keywords:
actuator systems; gate drive voltage; overshoot; noise suppression
PACS:
TM464
DOI:
10.3969/j.issn.1672-1292.2019.04.008
Abstract:
The actuator systems of UAV use PWM technology to drive electromechanical actuators,the drive circuit is to bridge inverter circuit composed of MOSFET. Drive voltage overshoot occurs during driving process,which can contribute conducted EMI emissions to the entire systems. To solve this problem,the mechanism of drive voltage overshoot and EMI to the actuator systems is analyzed firstly. Then,a method is proposed to add a capacitor at the power supply end of the driver circuit to suppress voltage overshoot. Finally,with the combination of simulations and an experiment,the effectiveness of the EMI suppression method is verified.

References:

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Last Update: 2019-12-31