From an input signal, and using an unusual current source, this circuit generates a ramp, that is, a voltage that grows linearly up to a certain value, and then falls.
This is the traditional configuration for a limit comparator or window comparator, using two...
We found this circuit in an English publication. The transistor can be BC549, and the power supply...
This simple preamplifier with two transistors may be used in a wide range of applications. The...