We found this circuit in a Motorola manual. The circuit has the capacitor charging at 15 to 30 V, then discharging through the coil and generating a voltage that reaches 500 V for the spark plugs.
This circuit was obtained in a 1974 documentation. It shows how to use a JFET as a low intensity...
Schmitt Triggers convert a signal of any waveshape in square signals or pulses. The circuit shown...
This circuit was found in a 1992 publication. The critical component is the photodiode, but...