Closed Loop Relay Controller

163

01:39:21

When the current through the load (blue) is greater than the set level, current through the 5V relay coil (green) stops. The simulation does not show the relay opening or closing the power supply switch (red).

The maximum current level is set by the trimmer across the base of the right hand side transistor.

In practice, the circuit needs a kicker momentary switch to bypass the relay and send power to the load to switch on the coil. The circuit will then run until the current reaches the threshold and switches it's own power off.

Can be used on DC motors that do not provide their own overload protection.

published 12 years ago

Igor

12 years ago

BTW, relay is already implemented and will be released soon after cloud version is published.

lasb1230

12 years ago

Awesome

Yosuncle

12 years ago

How is that relay coming along... Or did I just miss something?

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