Design with Mean Well UHP-350-24 Power Supply in Cirkit DesignerThe Mean Well UHP-350-24 is a high-efficiency, compact, and fanless power supply designed for industrial and commercial applications. It delivers a stable 24V DC output with a maximum power of 350W. This power supply is known for its slim design, high reliability, and robust protection features, including short circuit, overload, and overvoltage protection. Its fanless design ensures silent operation and reduces maintenance requirements, making it ideal for noise-sensitive environments.
This circuit is a power management system that steps down a 240V AC input to a lower DC voltage using a buck converter, which then powers a 40W UPS. The UPS is controlled by a rocker switch and is backed up by a battery management system (BMS) connected to three 3.7V batteries in series, ensuring continuous power supply.
Open Project in Cirkit Designer
This circuit is designed to provide an uninterruptible power supply (UPS) system with a 12V DC output. It includes a 12V 5A power supply connected to an AC source through a toggle switch, which charges a pair of 18650 Li-ion batteries via a voltage regulator (XL4016). The UPS module ensures a continuous power supply to the load by switching between the power supply and the battery bank.
Open Project in Cirkit Designer
This circuit is designed to provide a stable power supply from various sources. It integrates a solar panel with a solar charge controller to charge a 12V battery, which is then connected to a UPS module for regulated output. The circuit also includes two 12v to 5v step-down power converters to supply 5V power, one of which powers an ESP32 Devkit V1 microcontroller, and a switching power supply to provide an alternative AC to DC conversion input to the UPS module.
Open Project in Cirkit Designer
This circuit is a sensor and display system powered by a UPS module with a 12V power supply and 18650 batteries. It includes an ESP32 microcontroller that interfaces with various sensors (DHT22, Strain Gauge, MPU-6050, ADXL345) and an OLED display, with power regulation provided by a step-down buck converter.
Open Project in Cirkit Designer| Parameter | Value |
|---|---|
| Manufacturer | Mean Well |
| Model Number | UHP-350-24 |
| Input Voltage Range | 90-264VAC / 127-370VDC |
| Output Voltage | 24V DC |
| Output Current | 14.6A |
| Maximum Power Output | 350.4W |
| Efficiency | Up to 94% |
| Operating Temperature | -30°C to +70°C |
| Dimensions | 204 x 115 x 30 mm |
| Weight | 0.76 kg |
| Protection Features | Short circuit, overload, |
| overvoltage, overtemperature | |
| Cooling Method | Fanless, convection cooling |
| Safety Standards | UL62368-1, EN62368-1 |
The UHP-350-24 features screw terminal connections for input and output. Below is the pin configuration:
| Pin Name | Description |
|---|---|
| L | Live AC input |
| N | Neutral AC input |
| FG | Frame ground (Earth connection) |
| Pin Name | Description |
|---|---|
| V+ | Positive DC output (24V) |
| V- | Negative DC output (Ground) |
| Component Name | Description |
|---|---|
| V ADJ | Allows fine-tuning of the output voltage (adjustable ±10%) |
L (Live) and N (Neutral) terminals.FG terminal to the earth ground for safety.V+ (positive) and V- (negative) terminals.V ADJ potentiometer to fine-tune the output voltage within the ±10% range (21.6V to 26.4V).FG terminal to earth ground to minimize electrical hazards.V ADJ potentiometer carefully to avoid overvoltage, which could damage connected devices.The UHP-350-24 can be used to power an Arduino UNO and other peripherals. Below is an example of how to connect it:
V+ terminal of the power supply to the Arduino's VIN pin.V- terminal of the power supply to the Arduino's GND pin.// Example code to blink an LED connected to pin 13 of the Arduino UNO
// Ensure the Arduino is powered by the UHP-350-24 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
}
| Issue | Possible Cause | Solution |
|---|---|---|
| No output voltage | Input power not connected or incorrect | Verify AC input connections and voltage |
| Ensure input voltage is within range | ||
| Overload or short circuit protection | Disconnect load, check for shorts, | |
| and restart the power supply | ||
| Output voltage too high or low | Incorrect adjustment of V ADJ |
Adjust the V ADJ potentiometer |
| to the desired voltage | ||
| Power supply overheating | Insufficient ventilation | Ensure proper airflow around the unit |
| Overload condition | Reduce the load to within rated limits |
Can the UHP-350-24 be used outdoors?
What happens if the load exceeds 350W?
Can I use the UHP-350-24 to charge batteries?
Is the power supply compatible with 3-phase AC input?
This concludes the documentation for the Mean Well UHP-350-24 power supply. For further assistance, refer to the manufacturer's datasheet or contact Mean Well support.