How to Use 12v 100w Power Supply: Examples, Pinouts, and Specs

The 12v 100w Ultra Thin Power Supply by Gahada is a compact and efficient device designed to convert AC mains voltage into a stable 12V DC output. With a maximum power output of 100 watts, this power supply is ideal for powering a wide range of electronic devices, including LED strips, small motors, and microcontroller-based systems. Its ultra-thin design makes it suitable for applications where space is limited.

• Powering LED lighting systems (e.g., LED strips, LED panels)
• Supplying power to microcontroller-based projects (e.g., Arduino, Raspberry Pi)
• Driving small DC motors and actuators
• Industrial control systems
• Home automation projects
• General-purpose DC power supply for low-power devices

The following table outlines the key technical details of the 12v 100w Ultra Thin Power Supply:

The power supply has two main input and output sections. The pin configuration is as follows:

1. Connect the Input (AC Mains):

   • Ensure the power supply is disconnected from the mains before wiring.
   • Connect the live (L) and neutral (N) wires from the AC mains to the corresponding input terminals on the power supply.
   • Optionally, connect the ground (GND) terminal for additional safety.

2. Connect the Output (DC Load):

   • Connect the positive terminal of your load to the +V output terminal.
   • Connect the negative terminal of your load to the -V output terminal.
   • Ensure the total power consumption of the load does not exceed 100W.

3. Power On:

   • After verifying all connections, plug the power supply into the AC mains and switch it on.
   • Measure the output voltage with a multimeter to confirm a stable 12V DC output before connecting sensitive devices.

• Load Capacity: Do not exceed the maximum output power of 100W or the maximum current of 8.33A.
• Ventilation: Ensure adequate ventilation around the power supply to prevent overheating.
• Safety Precautions: Always disconnect the power supply from the mains before making any connections or adjustments.
• Polarity: Double-check the polarity of the output connections to avoid damaging your devices.
• Mounting: Use appropriate mounting hardware to secure the power supply in place, especially in industrial or mobile applications.

The 12v 100w power supply can be used to power an Arduino UNO via its barrel jack or VIN pin. Below is an example circuit and code:

1. Connect the +V output of the power supply to the VIN pin of the Arduino UNO.
2. Connect the -V output of the power supply to the GND pin of the Arduino UNO.

// Example code to blink an LED connected to pin 13 of the Arduino UNO
// Ensure the Arduino is powered via the 12v 100w power supply

void setup() {
  pinMode(13, OUTPUT); // Set pin 13 as an output
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1000);            // Wait for 1 second
  digitalWrite(13, LOW);  // Turn the LED off
  delay(1000);            // Wait for 1 second
}

1. Can this power supply be used outdoors?

   • No, this power supply is not waterproof. Use it only in dry, indoor environments.

2. What happens if the load exceeds 100W?

   • The power supply's overload protection will activate, shutting down the output to prevent damage.

3. Can I use this power supply with a 24V device?

   • No, this power supply outputs a fixed 12V DC and is not suitable for 24V devices.

4. Is it safe to leave the power supply on continuously?

   • Yes, as long as the load is within the specified limits and the power supply is adequately ventilated.

By following this documentation, users can safely and effectively utilize the 12v 100w Ultra Thin Power Supply for their electronic projects and applications.