This simple circuit uses a zener diode and two LEDs to indicate whether the voltage of a power grid is 110 V or 220 V. The zener diode is 15 V x 1 W and the LEDs are common, red (110 V) and green (220 V).
110 V or 220 V Voltage Indicator (CB16899E)
- Details
- Written by: Newton C. Braga
