|Created||June 25, 2013|
|Last modified||June 25, 2013|
Simple On-Air / Off-Air indicator circuit.
Resistor values calculated as nearest preferred value to:
Vbat = nominal battery voltage,
Vfwd = nominal forward voltage of LED at Iled,
Iled = desired LED forward current.
Simulate > Time-Domain > Run Time-Domain Simulation
Plots LED forward currents and voltages as SW2 changes over from Off-Air to On-Air.
SW1 is required to turn LEDs off when not in use.
Hover cursor over components then:
Right click > Edit Parameters to see values, expressions and parameters used in components.
Components used are for illustration only. Actual devices, values and ratings must be chosen by design.
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