Things which you can learn:
*Application of AT89C2051 microcontroller.
*Application of ADC0831 analogue-to-digital converter and MCT2E optocoupler
*Interfacing an LCD module to the micro-controller output.
*Application of the 3-terminal voltage regulator IC 7805.
*Use of transistors as signal amplifiers.
*Application of BS170 n-channel MOSFET and IRF540 n-channel MOSFET.
The microcontroller-based solar
charge controller described here has
the following features:
1. Automatic dusk-to-dawn operation
of the load
2. Built-in digital voltmeter (0V-20V
range)
3. Parallel- or shunt-type regulation
4. Overcharge protection
5. System status display on LCD
6. Deep-discharge protection
7. Low battery lock
8. Charging current changes to
‘pulsed’ at full charge
9. Low current consumption
10. Highly efficient design based on
microcontroller
11. Suitable for 10-40W solar panels
for 10A load
As the sources of conventional
energy deplete day by day,
resorting to alternative sources
of energy like solar and wind energy
has become need of the hour.
Solar-powered lighting systems are
already available in rural as well as urban
areas. These include solar lanterns,
solar home lighting systems, solar
streetlights, solar garden lights and
solar power packs. All of them consist
of four components: solar photovoltaic
module, rechargeable battery, solar
charge controller and load.
Brand: Kits'n'spares, Marketed by: Kits'n'spares