Shunt regulator monitors battery voltage

Focus:

Adding a few external components to a TL431 shunt regulator enables it to function as a Schmitt trigger and serve as a battery monitor that illuminates an LED when battery voltage rises above the programmed threshold voltage.

What you’ll learn:

• How to monitor battery voltage using a shunt regulator

Notes:

An EDN Design Idea

View the Source

Author & Publication:

Vladimir Rentyuk, Modul-98 Ltd, Zaporozhye, Ukraine; Edited by Martin Rowe and Fran Granville, EDN, Sep 18 2008

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