DollaTek 15W USB Step Up/Down Power Module with LCD Display

1. Okwu mmalite

This manual provides detailed instructions for the DollaTek ZK-DP2 15W USB Step Up/Down Power Module. This adjustable constant voltage and constant current (CVCC) converter features an LCD digital tube display, supporting both step-up and step-down voltage conversion. It is designed for various applications requiring adjustable power output from a USB or DC input.

2. Ngwaahịa gafereview

The DollaTek ZK-DP2 module is a compact and versatile power solution. It includes an LCD display for real-time monitoring of output voltage, current, and power. The module features two potentiometers for adjusting output voltage and current, and two buttons for control and display functions.

Figure 1: DollaTek ZK-DP2 Power Module with key dimensions. The module measures approximately 72mm in length, 35mm in width, and 15mm in height, with an 8mm handle extension.

Ọgụgụ 2: Zuru ezu view of the DollaTek ZK-DP2 module showing input/output terminals, potentiometers, and buttons. Key components include USB Input DC 5V, Input DC 4.0V-13.0V, Micro USB Input DC 5V, ON/OFF button, SELECT button, ON LED, CC LED, CC Potentiometer (Adjust Output Current), CV Potentiometer (Adjust Output Voltage), and Output terminals (Out 0.5V-30V).

2.1 Njikwa na egosi

• Left Button (ON/OFF):
  • Short press: Toggles output ON/OFF. In calibration mode, it acts as a 'minus' adjustment.
  • Long press: Sets the power-on default output state (ON/OFF).
• Right Button (SELECT):
  • Short press: Toggles display between output voltage, output current, output power, or cycles through all three (wheel display).
  • Long press: Enters or exits calibration mode.
• Igwe ihe omimi CV: Na-edozi mmepụta voltage.
• CC Potentiometer: Adjusts the output current limit.
• Ngosipụta LCD: Na-egosi ntinye voltage, mmepụta voltage, current, power, and capacity.
• NA ikanam: Indicates when the output is active.
• Igwe ọkụ CC: Indicates when the module is operating in constant current mode.

Ọgụgụ 3: nso nso view illustrating the functions of the left and right buttons on the DollaTek ZK-DP2 module.

3. Nkọwapụta

4. Nhazi

Follow these steps to set up your DollaTek ZK-DP2 power module:

1. Njikọ ntinye: Connect the power source to the module using one of the following methods:
   • Ntinye USB: Plug the module's USB connector into a standard 5V USB power source.
   • Ntinye USB USB: Connect a Micro USB cable to the Micro USB port on the module for a 5V input.
   • Ntinye Pad: Use the screw terminals labeled 'IN+' and 'IN-' to connect a DC power source between 4.0V and 13.0V. Ensure correct polarity.
2. Njikọ mmepụta: Connect your load device to the output screw terminals labeled 'OUT+' and 'OUT-'. Ensure correct polarity.
3. Nyocha mbụ: Before connecting a sensitive load, it is recommended to verify the output voltage and current settings using a multimeter.

5. Ntuziaka ọrụ

Once the module is powered on, the LCD display will show the current operating parameters. Use the potentiometers and buttons to control the output.

5.1 Adjusting Output Voltage na Ugbu a

• Voltage mmezi: Tụgharịa CV Potentiometer (usually labeled 'CV') to adjust the desired output voltage. Turn clockwise to increase voltage, counter-clockwise to decrease.
• Current Limit Adjustment: Tụgharịa CC Potentiometer (usually labeled 'CC') to set the maximum output current. This acts as a current limit. When the load draws current exceeding this limit, the module will enter constant current mode, indicated by the CC LED.

Ụdị ngosi 5.2

Mkpirisi pịa Right Button (SELECT) to cycle through the display modes:

• Mmepụta Voltage (V)
• Mpụta ugbu a (A)
• Ike mmepụta (W)
• Automatic cycling through Voltage, Current, and Power.

5.3 Output ON/OFF Control

Mkpirisi pịa Left Button (ON/OFF) to toggle the output power ON or OFF. The ON LED indicates the output status.

5.4 Power-On Default Output State

To set whether the output is ON or OFF by default when the module is powered on, long press the Left Button (ON/OFF).

5.5 Quick Charge Protocol Support

The module supports quick charge protocols such as QC2.0, QC3.0, AFC, FCP, and SCP, allowing for efficient charging of compatible devices when used with a suitable power source.

6. Atụmatụ nchedo

The DollaTek ZK-DP2 module incorporates several protection mechanisms to ensure safe operation:

• MfefetagNchedo (OVP): The module automatically disables the output if the output voltage gafere 30.5V.
• Overcurrent Protection (OCP): The module automatically disables the output if the output current exceeds 2A.
• Overpower Protection (OPP): The module automatically disables the output if the output power exceeds 15W. The display will show "OPP".
• Overtemperature Protection (OTP): The module automatically disables the output if the internal temperature exceeds 100 ℃. The display will show "OTP".

7. Nchọpụta nsogbu

• Output Disabled with "OPP" Display: This indicates Overpower Protection has been triggered. Reduce the load power and then short press the "ON/OFF" button to re-enable the output.
• Output Disabled with "OTP" Display: This indicates Overtemperature Protection has been triggered. Reduce the load power or allow the module to cool down, then short press the "ON/OFF" button to re-enable the output.
• No Current Display or Inaccurate Current Reading at Low Current: The module may show a large display error when the output current is below 0.05A. It may not display current if the current is between 10mA and 40mA. This is normal behavior due to the measurement resolution.
• Enweghị mmepụta: Check input power connection and voltage. Ensure the output is enabled (ON LED should be lit). Verify that no protection features (OVP, OCP, OPP, OTP) have been triggered.

8. Nlekọta

The DollaTek ZK-DP2 power module is designed for low maintenance. Keep the module clean and free from dust and moisture. Avoid exposing it to extreme temperatures or direct sunlight. Do not attempt to disassemble the module, as this may void any warranty and could cause damage.

9. Akwụkwọ ikike na nkwado

This product is covered by the standard manufacturer's warranty. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.