Tuesday, November 15, 2016

Circuit Schematic Diagram Portable Solar Lantern

ElcoHow. - This is one circuit schematic diagram of Portable Solar Lantern that very useful for you who want to build portable lantern using panel solar as the main power supply.

In this time, we will give you global description about this circuit schematic diagram of Portable Solar Lantern like in Figure 1 below, beside we give you circuit schematic diagram and component parts used in this circuit.

Circuit Schematic Diagram

Figure 1. Circuit Schematic Diagram of Portable Solar Lantern

Component Parts

  1. Panel Solar
  2. Diode
  3. Switch
  4. Resistors
  5. Capacitor
  6. White LED
  7. NiCAD Battery
  8. LED


This is circuit schematic diagram of Portable Solar Lantern that can help you to build solar panel application for lighting. The main component in this circuit are solar panel and white led. 

According Electroschematics site that also published this circuit describe that when solar panel is well exposed to sunlight, about 9 volt dc available from the panel can be used to recharge a 4.8 volt /600 mAh rated Ni-Cd batterypack. Here red LED (D2) functions as a charging process indicator with the help of resistor R1. Resistor R2 regulates the charging current flow to near 150mA.

Assuming a 4-5 hour sunlit day, the solar panel (150mA current set by the charge controller resistor R2) will pump about 600 – 750 mAh into the battery pack. When power switch S1 is turned on, dc supply from the Ni-Cd battery pack is extended to the white LED (D3). Resistor R3 determines the LED current. Capacitor C1 works as a buffer.

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