rechargable lead acid battery charger persentation.pptx

A battery charger is basically a DC power supply source.
To charge a battery from AC we need a step down transformer, rectifier, filtering circuit, regulator to maintain the constant voltage then we can give that voltage to the battery to charge it.
Think if you have only DC voltage and charge the lead acid battery, we can do it by giving that DC voltage to a DC-DC voltage regulator and some extra circuitry before giving to the lead acid battery.
Here a transformer is used to step down the AC mains input voltage to the required level as per the rating of the transformer.
This transformer is always a high power type and is able to produce a high current output as required by most lead-acid batteries.
A bridge rectifier configuration is used to rectify the low voltage AC into DC and is further smoothed by a high value electrolytic capacitor.
The capacitor also work as a filter. The dc voltage is not pure it have some impure thus by using this capacitor we can remove it.
This DC is fed to an electronic circuit which regulates the voltage into a constant level and is applied to the battery under charge, where the energy is stored through an internal process of chemical reaction.
And in this electronic circuit ic l200,it is the main component of circuit. It may be mounted on small heat sink,but this is not strictly necessary since the device has internal thermal protection.
A battery charger is basically a DC power supply source.
To charge a battery from AC we need a step down transformer, rectifier, filtering circuit, regulator to maintain the constant voltage then we can give that voltage to the battery to charge it.
Think if you have only DC voltage and charge the lead acid battery, we can do it by giving that DC voltage to a DC-DC voltage regulator and some extra circuitry before giving to the lead acid battery.
Here a transformer is used to step down the AC mains input voltage to the required level as per the rating of the transformer.
This transformer is always a high power type and is able to produce a high current output as required by most lead-acid batteries.
A bridge rectifier configuration is used to rectify the low voltage AC into DC and is further smoothed by a high value electrolytic capacitor.
The capacitor also work as a filter. The dc voltage is not pure it have some impure thus by using this capacitor we can remove it.
This DC is fed to an electronic circuit which regulates the voltage into a constant level and is applied to the battery under charge, where the energy is stored through an internal process of chemical reaction.
And in this electronic circuit ic l200,it is the main component of circuit. It may be mounted on small heat sink,but this is not strictly necessary since the device has i

1. SHARAD INSTITUTE OF TECHNOLOGY COLLEGE OF ENGINEERING, YADRAV. Department of Electrical Engineering.

2. Lead acid battery charger. Presented by- Shritika Sargerao Kale. [26] Abhilasha Chandrashaker Kumbhojkar. [27] Amruta Vijay Magdum . [28] Divyrani Ramesh Pujari. [29] Under the Guidance of- Miss.D.R . Babar.

3. Theme of project Introduction Principle of operation Construction Working Merits Demerits Applications Hardware required View of project OUTLINE OF PROJECT

4. The goal of this project is to study deeply the working of lead acid battery with construction details. And to charge lead acid battery using lead acid battery charger. THEME OF PROJECT

5. Chargeable batteries are produced and used extensively today for different applications. Altho in electronics more Ni- Cd than PbH2SO4 batteries are used. A battery charger circuit may be quite simple in design introduction

6. BLOCK diagram

7. circuit diagram

8. Fuse. Transformer.(12v) Diode. Capacitor. IC L200C. Resistor. Variable resistor (preset). Led’s. (Red Green). Connector. Connecting wire’s. Component list -

9. Information of Component Transformer- Diode- Step down transformers can step down incoming voltage, which enables you to have the correct voltage input for your electrical needs.  Diodes are used to regulate voltage to protect circuits from high voltage

10. IC L200- Resistor- The circuit is based on IC L200 . L200 is a five pin variable voltage voltage regulator IC The charging current is controlled by the parallel combination of the resistors R1&R2 .

11. Variable pot- The POT P1 can be used to adjust the charging current. The actual level of the charging voltage is set with P1.

12. A battery charger is basically a DC power supply source. To charge a battery from AC we need a step down transformer. A bridge rectifier configuration is used to rectify the low voltage AC into DC. The capacitor also work as a filter. This DC is fed to an electronic circuit which regulates the voltage into a constant level using ic l200 and is applied to the battery under charge. WORKING OF LEAD ACID BATTERY CHARGER

13. Much lighter and smaller and more efficient . Inexpensive and simple to manufacture Low maintenance requirements This type of charger charged rapidly , & is protected against thermal overload , short circuits & polarity reversal of the battery. Lead-acid batteries are generally reliable for everyday use. No damage of circuit because protection component are provided. ADVANTAGES

14. Cannot be stored in a discharged condition. This charger is use only for perticular rating that is up to 4v.   LIMITATION

15. To charge the vehicle’s &motor’s batteries. To charge inverter bttery . To charge lead acid batteries of different ranges. In the automobiles for starting & lighting. Other electrical application where a recharagable battery’s are required. APPLICATION

16. ANY QUERIES…???

17. THANK YOU….!!!