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Solar-Powered LED Light with Battery Backup and Rocker Switch Control

Image of Solar-Powered LED Light with Battery Backup and Rocker Switch Control

Circuit Documentation

Summary of the Circuit

This circuit appears to be a simple power supply and control circuit for an LED, utilizing a solar panel and a battery as power sources. A rocker switch is used to control the power flow, and a MOSFET is likely used as a switch or regulator for the LED. A diode is included, possibly for reverse voltage protection or rectification, and a resistor is in place, presumably to limit current to the LED.

Component List

Solar Panel

  • Description: A device that converts light into electrical energy.
  • Pins: +, -

Rocker Switch

  • Description: A switch to control the connection of the circuit.
  • Pins: output, input

LED: Two Pin (red)

  • Description: A red light-emitting diode.
  • Pins: cathode, anode

3.7v Battery

  • Description: A power source providing a voltage of 3.7 volts.
  • Pins: +, -

MOSFET

  • Description: A type of transistor used for switching electronic signals.
  • Pins: Gate, Drain, Source

1N4007 Rectifier Diode

  • Description: A diode commonly used for rectifying alternating current to direct current.
  • Pins: Cathode, Anode

Resistor

  • Description: A passive two-terminal electrical component that implements electrical resistance as a circuit element.
  • Pins: pin1, pin2
  • Properties: Resistance: 10 Ohms

Wiring Details

Solar Panel

  • + connected to the output of the Rocker Switch and + of the 3.7v Battery.
  • - connected to the Anode of the 1N4007 Rectifier Diode.

Rocker Switch

  • output connected to the + of the Solar Panel and + of the 3.7v Battery.
  • input connected to the anode of the LED: Two Pin (red).

LED: Two Pin (red)

  • anode connected to the input of the Rocker Switch.
  • cathode connected to the Drain of the MOSFET.

3.7v Battery

  • + connected to the output of the Rocker Switch and + of the Solar Panel.
  • - connected to the Source of the MOSFET and Cathode of the 1N4007 Rectifier Diode.

MOSFET

  • Gate connected to pin2 of the Resistor.
  • Drain connected to the cathode of the LED: Two Pin (red).
  • Source connected to the - of the 3.7v Battery and Cathode of the 1N4007 Rectifier Diode.

1N4007 Rectifier Diode

  • Anode connected to the - of the Solar Panel.
  • Cathode connected to the Source of the MOSFET and - of the 3.7v Battery.

Resistor

  • pin1 connected to the Anode of the 1N4007 Rectifier Diode.
  • pin2 connected to the Gate of the MOSFET.

Documented Code

There is no microcontroller code provided for this circuit. If a microcontroller is added to the circuit in the future, the code will be documented in this section.