How to Use SMPS_9V_UP15S09: Examples, Pinouts, and Specs

The SMPS_9V_UP15S09, manufactured by GPS, is a switched-mode power supply (SMPS) designed to convert a wide range of input voltages into a stable 9V DC output. This component is highly efficient, compact, and reliable, making it ideal for powering low-power electronic devices, microcontrollers, and other circuits requiring a regulated 9V supply. Its robust design ensures minimal heat generation and high energy efficiency, even under varying load conditions.

• Powering microcontroller boards (e.g., Arduino, Raspberry Pi with 9V input)
• Battery-powered devices requiring efficient voltage regulation
• Portable electronics and embedded systems
• Industrial control systems
• Replacement for linear voltage regulators to improve efficiency

The following table outlines the key technical details of the SMPS_9V_UP15S09:

The SMPS_9V_UP15S09 has four primary pins for input and output connections. The table below describes each pin:

1. Input Connection: Connect the AC_IN1 and AC_IN2 pins to the AC mains supply (85V to 265V AC). Ensure proper insulation and safety precautions when handling high-voltage AC connections.
2. Output Connection: Connect the DC_OUT+ and DC_OUT- pins to the load or circuit requiring a 9V DC supply. Verify the polarity to avoid damage to the connected device.
3. Mounting: Secure the SMPS module in a well-ventilated area to prevent overheating. Avoid placing it near heat-sensitive components.
4. Testing: Before connecting the load, measure the output voltage using a multimeter to ensure it is stable at 9V DC.

• Safety First: Always disconnect the power supply before making any connections or modifications.
• Load Requirements: Ensure the connected load does not exceed the maximum output current of 1.5A.
• Heat Dissipation: Although the SMPS is efficient, it may generate some heat under heavy loads. Use proper ventilation or a heatsink if necessary.
• Noise Filtering: If the connected circuit is sensitive to noise, consider adding a capacitor (e.g., 100µF electrolytic) across the output terminals to further reduce ripple and noise.
• Arduino Compatibility: The SMPS_9V_UP15S09 can be used to power an Arduino UNO or similar boards via the VIN pin, which accepts 7-12V DC.

Below is an example of how to connect the SMPS_9V_UP15S09 to an Arduino UNO:

1. Connect the DC_OUT+ pin of the SMPS to the VIN pin of the Arduino UNO.
2. Connect the DC_OUT- pin of the SMPS to the GND pin of the Arduino UNO.
3. Ensure the input AC voltage is within the specified range.

// Example Arduino code to blink an LED when powered by SMPS_9V_UP15S09
// Connect an LED to pin 13 with a 220-ohm resistor

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 I use this SMPS to power a 12V device?

   • No, the SMPS_9V_UP15S09 provides a fixed 9V output. Using it for a 12V device may result in insufficient power or malfunction.

2. Is the SMPS_9V_UP15S09 safe for outdoor use?

   • The module is not weatherproof. Use it indoors or in a sealed, weatherproof enclosure for outdoor applications.

3. What happens if the input voltage exceeds 265V AC?

   • The SMPS is designed to handle up to 265V AC. Exceeding this limit may damage the module or trigger its protection features.

4. Can I use this SMPS with a battery as input?

   • No, this SMPS is designed for AC input only. For battery-powered applications, consider a DC-DC converter instead.

By following this documentation, users can safely and effectively integrate the SMPS_9V_UP15S09 into their projects.