Limiting discharge current of super capacitor
Instead of switching (for efficiency) constant current circuit, how about a circuit the supplies current when the wire is too cold and turns it off when too hot?

L1 slows the current rise and fall times to make the circuit more controllable if your thermal time constants are too fast. D1 protects M1 from L1's flyback voltage spike when current is interrupted through L1.







simulate this circuit &ndash; Schematic created using CircuitLab