At this point is a Solar Charger Circuit to is used to charge information Acid otherwise Ni-album batteries using the solar energy power. The circuit harvests solar energy to charge a 6 volt 4.5 Ah rechargeable battery in favor of various applications. The stallion has Voltage and Current supervision and terminated voltage restrict sour facilities.
Circuit uses a 12 volt solar panel and a changeable voltage supervisor IC LM 317. The solar panel consists of solar cells each one rated on 1.2 volts. 12 volt DC is presented from the panel to charge the battery. Charging current passes through D1 to the voltage watchdog IC LM 317. By adjusting its Adjust pin, output voltage and current can subsist regulated.
VR is placed amid the adjust pin and ground to provide an output voltage
of 9 volts to the battery. Resistor R3 confine the charging current and
diode D2 prevents discharge of current from the battery. Transistor T1
and Zener diode ZD conduct yourself having the status of a stop rotten
switch at what time the battery is ample. Normally T1 is rancid and
battery gets charging current.
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After the terminal voltage of the battery rises over 6.8 volts, Zener
conducts and provides station current to T1. It followed by turns on
education the output of LM 317 to prevent charging. If you want to
specific voltage / current output , you can replacing ZD on the circuit
above.
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