DONGKER XY-SK60 Boost Buck Converter

1. Introduction

The DONGKER XY-SK60 is a versatile DC-DC 60W 5A CVCC Adjustable Automatic Buck Boost Power Supply Module. Featuring a new generation large LCD display, this non-isolated converter supports solar charging and can efficiently convert DC 6V-36V input to a stable DC 0.5V-36V output. It is suitable for various applications, including use as an ordinary buck power supply module or an LED constant current driver.

Figure 1: Front view of the XY-SK60 Boost Buck Converter module with its digital display.

2. Key Features

• Advanced Display: New generation larger LCD display screen for clear readings.
• Wide Input/Output Range: Converts DC 6V-36V to DC 0.5V-36V.
• High Power Output: Provides up to 60W and 5A.
• CVCC Adjustable: Constant Voltage (CV) and Constant Current (CC) adjustable output.
• MPPT Solar Charging Support: Ideal for solar power applications.
• Programmable Multi-parameter: Allows setting various operational parameters.
• Multiple Protection Mechanisms: Includes input anti-reverse, output anti-backflow, input under-voltage, output over-voltage, output over-current, output over-power, and over-temperature protection.
• Soft Start Function: Ensures smooth power-up.
• Serial Communication: Supports standard Modbus protocol for serial communication.
• Firmware Upgrade Support: Allows for future enhancements.

Figure 2: Overview of the XY-SK60's third-generation upgrade features and protections.

3. Specifications

Figure 3: Physical dimensions of the XY-SK60 module and recommended opening size for installation.

4. Setup and Installation

Follow these steps for proper setup and connection of your XY-SK60 module:

1. Connect Input Power: Connect the DC input power supply to the VIN+ and VIN- terminals. Ensure the input voltage is within the specified range of DC 6V-36V.
2. Set Output Parameters: Before connecting any load, set the desired output voltage and constant current limits using the module's controls.
3. Configure Other Parameters: Adjust any other required parameters such as protection thresholds (e.g., over-voltage, over-current) as per your application needs.
4. Disconnect Power: Temporarily remove the work power supply after configuration.
5. Connect Load: Connect your load device to the OUT+ and OUT- terminals.
6. Re-apply Power: Re-connect the input power supply to begin operation.

The module also supports connection to an XY-K485X module for 485 bus control or a WiFi module for remote control via APP/web. An external 10k NTC 3905B temperature sensor can be connected to the NTC interface for temperature monitoring and control.

Figure 4: Functional interfaces and wiring diagram of the XY-SK60 module.

5. Operating Instructions

The XY-SK60 module features an intuitive LCD display and control knobs/buttons for easy operation.

• Voltage Setting (VSET): Use the VSET button and rotary encoder to adjust the output voltage.
• Current Setting (ISET): Use the ISET button and rotary encoder to set the constant current limit.
• Output ON/OFF (SW): The SW button controls the output enable/disable function.
• Display Information: The LCD shows real-time output voltage, current, and power.
• MPPT Function: When used for solar charging, ensure the MPPT function is enabled. Connect the external temperature probe if using for battery charging to support over-temperature protection.

Figure 5: Example setup for MPPT solar charging with external temperature probe.

6. Safety Precautions

Failure to observe these precautions may result in damage to the module or connected devices, or personal injury.

• This is a DC power module; do not connect it to AC power.
• Ensure the input power supply capacity is greater than the load power requirement.
• If the module becomes hot during operation, reduce the output power to prevent overheating.
• Always read and understand this user manual and product description before use.
• This product does not have output reverse connection protection. Reversing the positive and negative terminals of the battery or load will damage the device.
• Battery charging requires specific professional knowledge. Non-professionals should not attempt to charge batteries directly to prevent fire and explosion hazards.

7. Maintenance

The XY-SK60 module is designed for reliable operation with minimal maintenance. To ensure longevity and optimal performance:

• Keep the module clean and free from dust and debris. Use a soft, dry cloth for cleaning.
• Ensure adequate ventilation around the module, especially when operating at higher power levels, to prevent heat buildup.
• Avoid exposing the module to extreme temperatures, high humidity, or corrosive environments.
• Regularly check all connections for tightness and ensure no wires are frayed or damaged.

Figure 6: Internal view of the XY-SK60 module, highlighting heat dissipation components.

8. Troubleshooting

If you encounter issues with your XY-SK60 module, consider the following common troubleshooting steps:

• No Output/Incorrect Voltage:
  • Check input voltage: Ensure it is within the 6V-36V range and stable.
  • Verify connections: Confirm all input and output wires are correctly connected and secure.
  • Check output enable: Ensure the output is turned ON via the SW button.
  • Review settings: Confirm output voltage and current limits are set correctly and not triggering protection.
• Module Overheating:
  • Reduce load: Decrease the output current or power.
  • Improve ventilation: Ensure adequate airflow around the module.
  • Check ambient temperature: Operate within the specified temperature range (-20℃~85℃).
• Protection Triggered (e.g., OVP, OCP, OPP, OTP):
  • Identify the triggered protection indicated on the display.
  • Adjust load or input conditions to fall within the set protection limits.
  • Reset the module by cycling power if necessary, after resolving the cause.
• Display Issues:
  • Ensure stable input power.
  • If the display is blank or erratic, disconnect power, wait a few minutes, and reconnect.

9. Applications

The DONGKER XY-SK60 Boost Buck Converter is suitable for a wide range of applications, including:

• High-power LED constant current drive
• Lithium battery charging
• Ni-Cd or Ni-MH battery charging
• Solar panel power conversion
• Wind Turbines power conversion
• General purpose power supply
• Instrument voltage display
• Test meter applications
• Circuit testing
• Various power conversion needs

10. Warranty and Support

For warranty information and technical support, please refer to the seller or contact DONGKER customer service directly. Keep your purchase receipt for any warranty claims. The manufacturer is committed to providing high-quality service and support for their products.