Solar Cell Battery Charger Ic

Solar battery charger circuit principle.

Solar cell battery charger ic.

Conditioning constant current and constant voltage with an ic thermal protection and safety timer. Whether you need a single cell linear charger for space constrained applications or a single to multi cell switching charger with high charging current for fast and cool charging our quick. The bq24210 device is a highly integrated li ion linear charger targeted at space limited portable applications. I haven t had much luck finding the datasheet for the solar light ics and the three i found are not in english.

High efficiency switching battery chargers provide low heat and fast charging solutions up to 9a for high capacity batteries. Using the solar light ic all you need is the solar ic an inductor and the ultra bright led to make the circuit. The charging current passes to lm317 voltage regulator through the diode d1. That aside the inductor controls the power to the led.

Solar battery charger operated on the principle that the charge control circuit will produce the constant voltage. It uses a mini jack socket for charging. The battery can not be removed. It is quite difficult to find such a voltage charger.

The spv1040 protects itself and other application devices by stopping the pwm switching if either the maximum current threshold up to 1 8 a pk is reached or the maximum temperature limit up to 155 c is exceeded an additional built in feature of the spv1040 is the input source reverse. The open circuit voltage must be 3 3v plus the forward voltage drop of d1 above the float voltage of the 2 cell li ion battery plus an additional 15 for low intensity start up and operation. The short circuit current i sc of the solar panel falls out of the calculations based on the other three parameters. The output voltage and current are regulated by adjusting the adjust pin of lm317 voltage regulator.

It is possible to set the maximum output current according to charging requirements by a sense resistor. Battery charger ics products utilize our battery charger parametric search tools to quickly find the best charger to fit your design specifications. Add the battery and the solar cell and you have a solar light. Our broad portfolio of battery charger ics provide safe charging for 1 to 3 cell li ion li li polymer nimh nicd lead acid and rechargeable batteries of other chemistries in various sizes.

Analog devices offers a broad portfolio of high performance battery charger ic devices for any rechargeable battery chemistry including li ion lifepo 4 lead acid and nickel based for both wired and wireless applications these battery charger ics are offered in linear or switching topologies and are completely autonomous in operation. A solar cell radio used a 3v or two 1 2v nickel cadmium battery or nickel metal hydride battery in it. The circuit diagram shows a simple set up using the ic lm 338 which has been configured in its standard regulated power supply mode. Open in new find other battery charger ics description.

Simple solar radio battery charger.