Wednesday, February 16, 2011

Low-battery indicator with LED flasher

Low battery indicator with LED flasher

Typical low-battery indicators simply turn on an LED when the battery voltage drops below a certain value. Such circuits actually accelerate the battery’s extinction by drawing excessive current. This circuit draws a mere 1 mA in its standby mode and averages only 20 m A when activated. The low current imposes a minimal burden on any battery circuit.

No comments:

Post a Comment