We found this circuit in a 90s Popular Electronics. The circuit can be implemented with modern components. The power MOSFET is according to the controlled load.
In the figure we have a constant current source for Shape Memory Alloy or (Nitinol). The value of...
Using two unijunction transistors, this circuit found in Electronics World generates linear...
The circuit is from the Linear Application Handbook. The resistors determine the voltage applied to...