| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and system for current control of an optimal mechanical relay, since resistance of a mechanical relay coil increases with temperature and excess electrical energy is consumed. <P>SOLUTION: The method generally includes momentarily initiating a pull-in pulse when an input signal indicates a first state. A sense resistor controller is activated based on the pull-in pulse. A current flow is controlled to bypass a sense resistor and flow to the relay based on the activation of the sense resistor controller. The relay is controlled based on the current flow. <P>COPYRIGHT: (C)2008,JPO&INPIT |
