WANPTEK TPS Series DC Power Supply Operation Manual

Catalog

• Security Profile
• Product Overview
• Specification Parameter
• Panel Description
• Operation Instructions
• Short Circuit Alarm
• USB Quick Charging
• Connection Load
• Fuse Replacement
• Product Maintenance
• Product Warranty
• Common Problem

Security Profile

This manual contains important safety information for TPSxxxx series products regarding operation, usage, and storage environments. To ensure personal safety, read this manual thoroughly before use to guarantee the product operates in the best environment.

Upon receiving a new power supply, perform necessary checks to ensure normal instrument use:

1. Check for damage caused by transportation.
2. Verify that all accessories are complete.
3. Before switching on, check the input power switch located at the rear of the machine to confirm it matches your actual input voltage.
4. Electrify the machine and check if the output voltage and current are normal.

If any issues are found during these inspections, contact the distributor promptly.

Safety Symbols

The following safety symbols appear in the manual or on the machine:

• Warning ⚠️
• High Voltage Danger ⚡
• Earthing ⏚

Product Overview

WANPTEK TPS series products are high-precision switching DC regulated power supplies featuring a three-window, four-position display that simultaneously shows voltage, current, and power. They are widely used in mobile phone maintenance, computer maintenance, schools, and production lines. The output voltage and current are continuously adjustable between 0 and the nominal value. These power supplies offer excellent stability and ripple coefficient, along with a perfect short-circuit protection circuit.

An auxiliary USB-A/Type-C fast charging function is included, supporting multiple quick charging protocols.

The product boasts advantages such as a small size, attractive design, and convenient operation, and can operate for extended periods under full load, making it a favored choice among users.

Specification Parameter

Panel Description

The front panel of the WANPTEK Programmable DC power supply includes the following:

1. Voltage output display

2. Type-C fast charging interface

3. Current output display

4. USB-A fast charging interface

5. Output power display

6. Voltage stabilization indicator

7. Constant current indicator

8. OCP protection indicator

9. Output indicator

10. Output switch

11. V/A setting switch button

12. OCP switch

13. Voltage/current setting knob

14. Power switch

The rear panel includes:

15. Positive polarity (red) terminal

16. Ground terminal (green)

17. Negative polarity (black) terminal

18. Cooling fan

19. Fuse box

20. Power input socket

21. AC input voltage toggle switch

Diagram Description: The diagram shows a front view of the power supply with numbered controls and displays, and a rear view showing terminals, fan, and power input.

Operation Instructions

Work requirements

1. AC Input: Confirm the AC voltage allowed by the machine (AC 230V±10% or AC 115V±10%). Using the wrong input voltage can cause serious damage. ⚠️
2. Environment: Do not use in ambient temperatures exceeding 40°C. Ensure adequate space for the exhaust fan at the back for heat dissipation.
3. Connections: Positive and negative output terminals must be connected properly and securely to prevent overheating and damage.

Operation instructions

The power supply offers two output modes: Constant Voltage (C.V) and Constant Current (C.C). The mode is determined by the user-set voltage and current values and the load. The output will not exceed the set values.

• In C.V mode, the output voltage matches the set voltage.
• In C.C mode, the output current matches the set current.

Voltage regulation

1. Press the voltage/current switching button (11) to select voltage setting. The voltage display LED will flash. Adjust the knob to the desired voltage.
2. To adjust the voltage, press the knob to move the character position and then use the knob.

Current regulation

To adjust the limiting current output:

1. Press the voltage/current switching button (11) to select current setting. The current display LED will flash. Adjust the knob to the desired current value.
2. To adjust the current, press the knob to move the character position and then use the knob.

For Example

Set voltage to 5V and current to 5A:

1. Turn on the power switch.
2. Adjust the voltage knob to 5V.
3. Adjust the current knob to 5A.
4. Connect the load.

Note on CV Operation: In Constant Voltage (CV) operation, if the load resistance decreases and the output current reaches the set current limit, the power supply automatically switches to Constant Current (CC) mode. The current remains stable, and the voltage decreases proportionally (I = V/R). The CV state can be restored by increasing load resistance or the current setting value. ⚠️

Short Circuit Alarm

The machine features a Short Circuit Alarm interrupt output function (OCP).

Usage method:

1. Press the OCP button to enable the function; the indicator light will illuminate. If a short circuit (overcurrent) occurs, the machine will stop output and emit a beep with an OCP prompt. Press the OUT button to resume output after the short circuit is cleared.
2. Pressing the OCP button again disables the function, and the indicator light turns off. In this state, a short circuit will result in the machine outputting the maximum constant current set by the user.
3. The machine determines a short circuit based on whether the output current exceeds the user-set current. Therefore, this function cannot be used in constant current mode.

USB Quick Charging

The machine supports USB-A/Type-C fast charging, with a built-in chip for fast charging protocol identification. The output power is up to 18W, enabling fast charging for devices like mobile phones, PADs, and power banks. It automatically adjusts output voltage and current according to the charged equipment's fast charging protocol. Devices without fast charging functionality will be charged at a standard 5V.

Supported fast charging protocols include: Qualcomm QC2.0, QC3.0, APPLE, Huawei FCP, SCP, Samsung AFC, and others.

Connection load

To connect a load:

1. Rotate the terminal knob counterclockwise to loosen it.
2. Insert the Load Terminal.
3. Turn and tighten the knob of the connecting post clockwise.
4. Banana plugs can be inserted directly into the connection post holes.

Diagram Description: Diagrams illustrate the process of inserting and tightening terminals.

Warning: Incorrect connections can damage the power supply and load. When connecting batteries or other loads, ensure the '+' and '-' poles are not reversed, as this may damage the power supply. ⚠️

Constant Pressure/Current Characteristics:

This series of power supplies operates as a constant voltage/constant current automatic conversion type. It automatically switches between constant voltage and constant current states based on load changes. The point where constant voltage and constant current modes intersect is called the conversion point.

For instance, if the load causes the power supply to operate in constant voltage mode, it outputs a constant voltage. As the load increases, the output voltage remains stable, and the output current increases. When the current reaches the set limit, the power supply automatically converts to constant current mode. The output current remains stable, and the output voltage decreases proportionally with increased load. The transition between constant voltage and constant current is indicated by front panel LEDs: the CV indicator is lit in constant voltage mode, and the CC indicator is lit in constant current mode.

Diagram: A graph shows Output Voltage (Vout) on the y-axis and Output Current (Iout) on the x-axis, illustrating Vmax and Imax points.

Fuse replacement

If the fuse burns out, the machine will stop working. Identify and correct the cause of the fuse burnout before replacing it with a fuse of the same specifications.

Method of replacing fuse: First, remove the power plug, then open the fuse seat as shown in the view. After replacing the fuse with one of the same type and specifications, reinstall the fuse holder.

The fuse is located on the power outlet.

Diagram Description: Diagrams show the fuse removal and replacement process.

Safety Notice: For effective safety protection, only use fuses of specified specifications. Before replacing fuses, switch off the power supply and unplug the power cord from the socket. ⚡

Product Maintenance

1. When the machine is not in use, disconnect the power supply.
2. Pull out the power plug before cleaning the machine.
3. Do not use hydrocarbons, chlorides, similar solvents, or detergents containing abrasive ingredients.

Product Warranty

The product includes free maintenance service for one year from the date of purchase, with the following exceptions:

• Failure to present the warranty card.
• Faults arising from abnormal use, such as improper manual operation, repair, modification, or adjustment.
• Consumable materials are not covered by warranty.
• Natural disasters such as floods, fires, and earthquakes.

Maintenance fees apply to repairs exceeding the warranty period. Users are responsible for these fees.

Packing List

1. The whole machine *1
2. Power cord*1
3. Output Load Line*1
4. Instructions for Use*1
5. Guarantee Card Qualification Certificate*1

Common Problem

Power can't be turned on

Check if the power cord has alternating current and if the fuse is in good condition.

Power supply not output

Verify the output line is in good condition. Ensure the voltage or current is turned up.

What is Constant Voltage (C.V)

The power supply output is constant according to the user-set voltage. The current supplied will meet the actual needs of the load.

What is Constant Current (C.C)

When the current required by the load exceeds the user-set limit, the power supply automatically switches to constant current mode. The current remains unchanged, and the voltage is supplied according to the load's demand.

Note on Current Output: The power supply's output current is not necessarily equal to the user-set current size. The user-set current value represents the maximum limit current the power supply can output. The actual output current is supplied based on the load's needs, but it will not exceed the user-set limit.

Contact Information

WANPTEK

Shenzhen Guce Electronic Technology Co., Ltd.

Address: Lihengsheng Industrial Zone, Xikeng South Road, Fucheng Street, Longhua District, Shenzhen

Phone: 0755-82736331

Website: http://www.wanptek.com