A MINI PROJECT REPORT ON

BATTERY CHARGER OF A AIRCRAFT BATTERY

SUBMITTED BY,

A.SRI.SAI.ALEKHYA(09RG1A0204)

M.SRILATHA(09RG1A0238)

S.ANUSHA(09RG1A0256)

CONTENTS

INTRODUCTION

BATTERY

BATTERY CHARGER

BLOCK DIAGRAM

CIRCUIT OPERATION

CONCLUSION

INTRODUCTION Why a battery is required for aircraft?

Advantages of using rechargable batteries

Battery

Defination of battery

Ni-Cd battery

Advantages of Ni-Cd battery

Applications of Ni-Cd

BATTERY CHARGER

DEFINATION

NECESSITY

BATTERY CHARGER DEFINATION A battery charger is a device used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it.

NECESSITY

Aircrafts usually utilise Nickel cadmium batteries for starting purpose once aircraft generator can be made on and supplies the power thereafter.

Nickel cadmium batteries are high efficiency but costly batteries and need tobe charged accurately

BLOCK DIAGRAM

MAJOR COMPONENTS OF BATTERY CHARGER

BC547

IN4007

SL100

LM324

CIRCUIT OPERATION

The charging circuit must have two modes of charging, namely high current charging called boost charge till the battery attains around 90 % charge

Constant potential float charging to maintain the battery in a charged condition by compensating for leakage

CONCLUSION

Aircrafts usually utilise Nickel cadmium batteries for starting purpose once aircraft generator can be made on and supplies the power thereafter.

Nickel cadmium batteries are high efficiency but costly batteries and need tobe charged accurately.

ANY QUERIES ..?

THANK YOU