Fixed OFF Time Control Circuit Diagram using LMD18200

Fixed OFF Time Control Circuit Diagram using LMD18200 -Using the current sensing feature of the LMD18200, the following circuit diagram appears a conv


Fixed OFF Time Control Circuit Diagram

Fixed OFF Time Control Circuit Diagram using LMD18200 -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.

Or you may require to see the LMD18200 datasheet for complete details (source: national.com)

Tags: LMD18200 Datasheet, sign magnitude, time control circuit

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