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.
The circuit shown enables dynamic diode testing with an oscilloscope. We found this configuration in a...
Using LM3909 integrated circuits, this circuit was found in an American documentation from the...
This circuit is intended to limit the ringing time of a bell. Even if the button is kept pressed for...