MStechca,
Zack's LED is already a low voltage indicator. It becomes very dim when his 3V battery's voltage sags below about 2.8V. :roll:
He needs a step-up current regulator that switches for high efficiency and varies its duty-cycle to maintain the LED's current as the battery runs down. :lol:
Zack's LED is already a low voltage indicator. It becomes very dim when his 3V battery's voltage sags below about 2.8V. :roll:
He needs a step-up current regulator that switches for high efficiency and varies its duty-cycle to maintain the LED's current as the battery runs down. :lol: