The 12V Power Supply by Component is a reliable and stable voltage source designed to power a wide range of electronic circuits and devices. It provides a consistent 12-volt output, making it ideal for applications requiring steady power delivery. This component is commonly used in embedded systems, robotics, LED lighting, and other low-power electronic projects.
This circuit consists of a 12V battery connected to a 12V, 10W power LED. The battery provides the necessary voltage and current to power the LED, enabling it to emit light.
Open Project in Cirkit Designer
This circuit converts a 38.5V battery output to multiple lower voltage levels using a series of DC-DC converters and a power module. It includes an emergency stop switch for safety and distributes power to various components such as a relay module, USB ports, and a bus servo adaptor.
Open Project in Cirkit Designer
This circuit converts a 240V AC power source to a 12V DC output using a 12V adapter. The 240V AC power source is connected to a stopkontak, which then supplies the 12V adapter with the necessary AC voltage to produce a 12V DC output.
Open Project in Cirkit Designer
This circuit is a solar power system designed to charge a 12V battery using a 380W solar panel and a solar charge controller. The stored energy is then used to power an inverter, which supplies AC power to an air conditioner through an automatic transfer switch (ATS) and circuit breakers for safety.
Open Project in Cirkit DesignerThe following table outlines the key technical details of the 12V Power Supply:
| Parameter | Specification |
|---|---|
| Output Voltage | 12V DC ± 5% |
| Input Voltage Range | 100-240V AC (for AC-DC power supplies) or 12V DC (for batteries) |
| Maximum Output Current | 2A (varies by model) |
| Power Rating | 24W (maximum) |
| Ripple and Noise | < 120mV |
| Efficiency | ≥ 85% |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -20°C to 70°C |
| Dimensions | Varies by model |
| Weight | Varies by model |
For a typical 12V DC Power Supply with a barrel jack connector, the pin configuration is as follows:
| Pin | Description |
|---|---|
| Center | Positive terminal (+12V) |
| Outer | Negative terminal (GND) |
For a 12V Battery, the terminals are:
| Terminal | Description |
|---|---|
| Positive (+) | Positive terminal (+12V) |
| Negative (-) | Negative terminal (GND) |
Connect the Power Supply:
Verify Voltage Requirements:
Add Protection Components:
Power On:
The 12V Power Supply can be used to power an Arduino UNO via its DC barrel jack. Below is an example of how to connect and use it:
// Example code to blink an LED using a 12V power supply with Arduino UNO
// Ensure the Arduino is powered via the 12V DC barrel jack
const int ledPin = 13; // Pin connected to the onboard LED
void setup() {
pinMode(ledPin, OUTPUT); // Set the LED pin as an output
}
void loop() {
digitalWrite(ledPin, HIGH); // Turn the LED on
delay(1000); // Wait for 1 second
digitalWrite(ledPin, LOW); // Turn the LED off
delay(1000); // Wait for 1 second
}
| Issue | Possible Cause | Solution |
|---|---|---|
| No power to the circuit | Loose or incorrect connections | Verify all connections and polarity |
| Device not functioning properly | Insufficient current supply | Check if the circuit exceeds the power supply's current rating |
| Overheating of the power supply | Operating near maximum current rating | Ensure proper ventilation or reduce load |
| High noise or ripple in output | Poor filtering or unstable input voltage | Add capacitors or use a regulated power supply |
| Battery drains quickly | High current draw or old battery | Reduce load or replace the battery |
Can I use this power supply with a 5V device?
What happens if I reverse the polarity?
Can I use this power supply outdoors?
How do I know if the power supply is overloaded?
By following this documentation, you can safely and effectively use the 12V Power Supply in your electronic projects.