battery

Solar Boost Converter

Gargi-arya's picture
Submitted by Gargi-arya on Fri, 11/28/2014 - 22:05

A simple solar boost converter and voltage limiter circuit that charges a 12V battery from a 6V solar panel with MPPT (Maximum Power Point Tracking) capability.

 

Battery Level Indicator

Gargi-arya's picture
Submitted by Gargi-arya on Thu, 10/09/2014 - 12:49

INTRODUCTION

Battery level indicator  based on lm3914 IC (Integrated chip) indicates the status of the battery by glowing LED’s. For example six LED’s are glowing means battery capacity 60% remains. It can be used to check car battery or inverter. The IC LM3914 takes input analog voltage and drives 10 LED’s linearly according to the increasing/decreasing input analog voltage.

CIRCUIT DIAGRAM

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