A 48V to 12V DC-DC converter is an electronic device that steps down voltage from 48 volts to 12 volts. These converters are essential in applications where the power supply voltage is higher than what the electronics require. They are commonly used in automotive systems, industrial machinery, and renewable energy setups where battery banks or power systems operate at 48V, but the equipment requires a 12V supply.
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 designed to convert 240V AC power to both 12V and 24V DC outputs using multiple SMPS units. Terminal blocks are used to organize and distribute the power, while a 120V outlet provides additional AC power access. The circuit is likely used for powering various electronic devices that require different voltage levels.
Open Project in Cirkit Designer
This circuit is a 12V to 5V regulated power supply with an LED indicator. It uses a 5408 diode for reverse polarity protection, an LM340T5 7805 voltage regulator to step down the voltage to 5V, and a push switch to control the LED indicator. The circuit also includes capacitors for filtering and a resistor to limit the current through the LED.
Open Project in Cirkit Designer| Pin Number | Description | Notes |
|---|---|---|
| 1 | Input Voltage (48V) | Connect to the 48V supply |
| 2 | Ground | Connect to system ground |
| 3 | Output Voltage (12V) | Connect to the load or circuit |
| 4 | Ground | Connect to load or circuit ground |
Q: Can I use this converter in an automotive application?
Q: Is the converter isolated?
Q: What is the efficiency of the converter?
While an Arduino UNO typically operates at 5V, you might use a 12V supply for peripherals that require higher voltage. Below is an example code snippet for turning on an LED strip that requires 12V, using a 48V to 12V converter to step down the voltage.
// Define the LED strip power control pin
#define LED_STRIP_PWR_PIN 7
void setup() {
// Set the power control pin as an output
pinMode(LED_STRIP_PWR_PIN, OUTPUT);
}
void loop() {
// Turn on the LED strip
digitalWrite(LED_STRIP_PWR_PIN, HIGH);
delay(1000); // Keep the LED strip on for 1 second
// Turn off the LED strip
digitalWrite(LED_STRIP_PWR_PIN, LOW);
delay(1000); // Keep the LED strip off for 1 second
}
Note: The above code assumes that the Arduino UNO controls a relay or a transistor that switches the 12V line from the converter to the LED strip. The converter itself is not directly interfaced with the Arduino's pins, as the Arduino operates at 5V logic levels.