Switching regulator drives robot motor

Posted on Oct 14, 2012

The circuit in Figure 1 shows an example of how you can use an integrated switching regulator (ISR) to efficiently vary the speed of a permanent-magnet dc motor. In this application, the rotating head of a robot senses the presence of an oncoming object (perhaps a human). If the robot senses an object, it slows the rotation of its head to closely survey the surroundings. If an object is indeed present and comes within a certain distance of the robot, the robot`s head stops rotating and `looks` in the direction of the object.

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