How to Use 800w PWM(en) AC/DC Power Regulator: Examples, Pinouts, and Specs

The 800W PWM(en) AC/DC Power Regulator (Manufacturer Part ID: 800W-ER16) by RTM is a high-performance power regulation module designed for efficient AC-to-DC voltage conversion. Utilizing Pulse Width Modulation (PWM) technology, this regulator ensures stable and precise DC output while minimizing energy loss. With a power handling capacity of up to 800 watts, it is ideal for applications requiring robust and reliable power management.

• Industrial motor speed control
• LED lighting dimming systems
• Heating element power regulation
• Laboratory power supplies
• Battery charging systems
• Home appliances requiring variable power control

1. Wiring the Input:

   • Connect the AC IN (L) and AC IN (N) terminals to the live and neutral wires of the AC power source (110V-220V AC).
   • Ensure proper insulation and secure connections to avoid electrical hazards.

2. Wiring the Output:

   • Connect the DC OUT (+) and DC OUT (-) terminals to the load requiring DC power.
   • Verify that the load does not exceed the maximum power rating of 800W.

3. Adjusting the Output Voltage:

   • Use the onboard potentiometer to adjust the output voltage as needed.
   • Turn clockwise to increase the voltage and counterclockwise to decrease it.

4. Optional PWM Control:

   • For advanced applications, connect an external PWM signal to the PWM Control terminal.
   • Ensure the PWM signal is within the supported frequency range (typically 500Hz to 20kHz).

5. Power On:

   • After all connections are secure, power on the AC source.
   • Use a multimeter to verify the output voltage before connecting sensitive devices.

• Always ensure the input voltage matches the specified range (110V-220V AC).
• Avoid exceeding the maximum power rating of 800W to prevent damage to the regulator.
• Use proper heat dissipation methods (e.g., heatsinks or cooling fans) if operating at high power levels for extended periods.
• For safety, disconnect the regulator from the power source before making any wiring changes.
• If using with an Arduino UNO or other microcontrollers, ensure the PWM signal is compatible with the regulator's input requirements.

// Example code to control the 800W PWM(en) AC/DC Power Regulator using Arduino UNO
// This code generates a PWM signal on pin 9 to adjust the output voltage of the regulator.

const int pwmPin = 9; // PWM output pin connected to the regulator's PWM Control terminal
int dutyCycle = 128;  // Initial duty cycle (50% of 255)

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

void loop() {
  analogWrite(pwmPin, dutyCycle); // Write the PWM signal to the regulator

  // Example: Gradually increase and decrease the duty cycle
  for (dutyCycle = 0; dutyCycle <= 255; dutyCycle += 5) {
    analogWrite(pwmPin, dutyCycle); // Increase duty cycle
    delay(50); // Wait 50ms
  }
  for (dutyCycle = 255; dutyCycle >= 0; dutyCycle -= 5) {
    analogWrite(pwmPin, dutyCycle); // Decrease duty cycle
    delay(50); // Wait 50ms
  }
}

1. Can this regulator be used with a 12V DC motor?

   • Yes, the output voltage can be adjusted to 12V DC to power a 12V motor.

2. What happens if the load exceeds 800W?

   • The regulator may overheat or shut down to protect itself. Always ensure the load is within the specified power rating.

3. Is it safe to use this regulator without a heatsink?

   • For low-power applications, a heatsink may not be necessary. However, for high-power usage, a heatsink or cooling fan is recommended.

4. Can I use this regulator with a solar panel?

   • No, this regulator is designed for AC input only. It cannot be directly connected to a solar panel.

By following this documentation, users can effectively integrate the 800W PWM(en) AC/DC Power Regulator into their projects and ensure safe, efficient operation.