Hello,
I recently had some ride on my old moped. After a few miles the front light-bulb burned-out. This is typical issue with those unregulated AC magneto outputs. The bulb is designed for 6V.
Some mopeds are equiped with 2 Zener diodes limiting the output voltage from the magneto.
As both front and rear lights connect directly to the magneto, adding zener diodes would globally limit the AC voltage, which I don't want because the magneto also supplies voltage to indicator lights circuit and horn buzzer and both work better with higher voltages value.
I am thus wondering how to design an AC limiter which takes variable AC voltage with variable frequency as input and produce variable same frequency output but with fixed AC amplitude and of course minimum power loss.
Any idea about it?
Thanks.
I recently had some ride on my old moped. After a few miles the front light-bulb burned-out. This is typical issue with those unregulated AC magneto outputs. The bulb is designed for 6V.
Some mopeds are equiped with 2 Zener diodes limiting the output voltage from the magneto.
As both front and rear lights connect directly to the magneto, adding zener diodes would globally limit the AC voltage, which I don't want because the magneto also supplies voltage to indicator lights circuit and horn buzzer and both work better with higher voltages value.
I am thus wondering how to design an AC limiter which takes variable AC voltage with variable frequency as input and produce variable same frequency output but with fixed AC amplitude and of course minimum power loss.
Any idea about it?
Thanks.
Comment