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Fixed OFF Time Control Circuit Diagram using LMD18200
Tuesday, 27. April 2010 by
admindata
Using the current sensing feature of the LMD18200, the following circuit diagram appears a conventional analog control scheme called “Fixed Off Time Control”.
This circuit application is an example of Sign/Magnitude control. Whenever the motor current exceeds the desired set level a one shot is triggered which turns on the two upper switches of the H-Bridge, shorting out the motor for a fixed time interval. By driving the direction input of the LMD18200, the motor can be reversed.
Category:
Current Sensing |
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