| 摘要 |
An over current detector of a motor driver is disclosed to detect whether the current over flowing into the motor driver or not when the motor malfunctions. The detector is characterized in comprising a current transformer whose one terminal of the input side receives a rectified current, and the other terminal couples with the input terminal of the motor driver. One terminal of the output side is coupled to an input terminal of a comparator, and the other terminal is coupled to the ground. The disclosed current detector has the advantages of being reliable for current over-flow protection, quick reaction, low cost and circuit simplicity.
|
