现代电子技术2012，Vol.35Issue(2)：194-197,4.
OC门限流电路在串励电机控制中的研究
Research on OC gate current limiting circuit used in serial motor control
黄前华 1郑世芳 2钱玮3
作者信息
- 1. 国网电力科学研究院安徽继远电网技术有限责任公司,安徽合肥230088
- 2. 安徽英科智控股份有限公司,安徽合肥230088
- 3. 中国科学院合肥智能机械研究所,安徽合肥230088
- 折叠
摘要
Abstract
An OC gate current limiting circuit which breaks through the traditional way, limits the motor current directly without detection and protects the motor current directly by hardware circuit is proposed based on the traditional limiting method which monitors the motor current and then limits it for motor protection by Holtz and magnet ring. The voltage drop produced by letting the preset maximal current pass through the switch is taken as the reference voltage, and letting the real current pass through the switch is taken as the comparing voltage value. When the real current is greater than the preset maximal current and the comparing voltage is greater than the reference voltage, the OC gate circuit will shut off the signal control circuit which generates the control signal of the switch. Otherwise, when the real current is less than the preset maximal current, the switch works normally. Therefore, it can quickly limit the current to the preset maximal current when the current surges over the preset maximal current. The results show that the circuit has the characteristics of short response time, high control precision and low cost, etc.关键词
电流限制/最大电流/OC门/开关管Key words
current limitation/ maximal current/ OC gate/ switch tube分类
信息技术与安全科学引用本文复制引用
黄前华,郑世芳,钱玮..OC门限流电路在串励电机控制中的研究[J].现代电子技术,2012,35(2):194-197,4.
