The key to obtaining a triangular output from an integrator w/ a square wave input is to provide...?

Question

is it..

a) a constant-current charign souce?

b) a short RC time constant

c) a constant-voltage charging source for the capacitor

d) a constant-frequency charging source for the capacitor

Answer 1

(a)

The voltage across an ideal capacitor charged with a constant current source will increase linearly with time.

If the current source changes polarity with 50% duty the result will be a triangle wave