Contact Us

Hunan Qianhao Electrical & Mechanical Technology Development Co.,Ltd

Add: No 646 Nanhu Road, Yueyang City, Hunan, China
P.C: 414000
Tel: (86)730-8840353
Fax: (86)730-8840335

Follow Us On :

our facebook   our pinterest   our twitter   our googlesite   our blogspot   our linkedin  

Constant Current Control Description


The constant current source control is to control the output voltage, to the current through the electromagnet size, maintaining the current to a stable level. Voltage source and constant current source control the electromagnet current curve as follows:



It can be seen above


1. When the power supply of electromagnet is voltage source, the work current of electromagnet will gradually decrease as the work time increased and the temperature of electromagnet rises more quickly. Therefore, as the work time increased, the electromagnet suction decrease.


2. When the power supply of electromagnet is current source, the work current is constant and the electromagnet temperature rises more slowly. Therefore the current source is very efficient. Because the current is constant, so the electromagnet will remain constant.

Previous article:Advantages comparison of our QHWK system for contactless control cabinet       Next article:Electro Magnetic Sheet Lifter