XY-SK80 Adjustable Bench Power Supply – with USB Laptop Power Adapter

The XY-SK80 PSU is a small but super versatile adjustable bench power supply. It is small enough to fit in your hand but can do the job of an old-school bench supply at 3 times the price and 10 times the weight. It packs extra functions that you would not find in any bench power supply, like battery charging and monitoring total power (watts), energy (joules), capacity/charge (Ah) and running time (up-time).

The output voltage is adjustable between 0.6V and 36V, with a current of up to 5A (dependent on the power adapter used). The XY-SK80 can operate in normal voltage-controlled (CV) or current-controlled (CC) mode where the current can be set/limited in 1mA steps – also known as a constant current source. It can supply output power of up to 80W (e.g. 20V @ 4A) and boasts an efficiency of 88% – so there is very little heat generated.

The user interface is simple and elegant, consisting of a bright backlit LCD and a digital knob with turn-to-adjust and press-to-select functions.

As far as extra functionality goes the XY-SK80 will not disappoint. It can be powered from any DC source, even a USB port, and output any voltage (converting it up or down as needed). Use it with a USB power bank for a fully portable solution. From the display, you not only see the voltage and current but can also view the power being consumed by your device (voltage x current) as well as running time (in hours and minutes), energy and charge (in Ah) consumed over the operating time. You can even set limits to any one of the above and the XY-SK80 will automatically switch off when the limit is reached.

You will not easily damage your XY-SK80 since it has protection against reverse-voltage, short-circuit, over-voltage, over-current, reverse-current and over-temperature with a cooling fan that automatically comes on.

To bring this PSU to you at such an affordable price, we 3D-print a housing for it, making a very compact little bench power supply that packs a big punch.
Use it as a portable lab power supply on your desk, as a battery charger with automatic shut-off or in the constant-current mode as a direct LED driver.

Even power the XY-SK80 directly from your laptop during classes. You can also use the USB power cable to power your XY-SK80 from a battery bank, as demonstrated in one of the product images. This makes it an isolated supply with floating ground. Use this to simulate a battery in a circuit and even adjust the battery's voltage level while in a circuit to see how the circuit will behave.

Specifications: (adapter-dependent & upgradeable)

Circuit Type: Buck & Boost Converter
Number of Outputs: 1
Input Voltage: 6.0V ~ 36V DC
Constant Voltage Mode (CV): Yes
Output Voltage: 0.6V ~ 36V DC (power adapter dependent)
Output Voltage Accuracy: 0.5%+1 byte, Resolution: 0.01V
Constant Current Mode (CC): Yes
Output Current: 0 ~ 5A (power adapter dependent)
Output Current Accuracy: 0.5%+3 bytes, Resolution: 0.001A
Output Power: up to 80W (under natural heat dissipation) (power adapter dependent).
Output Frequency: 180KHz
Conversion Efficiency: 88%
Extra Features: Input Reverse Voltage Protection, Output Soft start, Anti-backflow Protection, Short Circuit Protection, Over-temperature Protection, Voltage and current Lock, Capacity/Energy/Run-Time Statistics, Set maximum Capacity/Energy/Running-Time, Automatic fan control, Line regulation, Load regulation.

Power Supply Size (without power adapter): 85 x 60 x 50mm
Weight: 200g

DC Adapter Specifications:

The XY-SK80 PSU can be used with any suitable DC power source with an output of between 6V and 36V. We have upgraded the PSU with a BNC connector so that you can easily swap out the adapter you would like to use, with no need for wiring in the adapter. This option includes a USB to DC Power Cable so you can power your XY-SK80 directly from your Laptop or PC. The power output will be limited by your PC's USB port, which can output 10W maximum. For a higher output, you can purchase the XY-SK80 option with the 24W or 80W power adapter, or use your own power adapter within the output specifications.

Input Voltage: 100 ~ 240 VAC
Power Output: 10W (laptop or PC's USB port limit)

What’s in the box
1 x XY-SK80 Adjustable Bench Power Supply
1 x Red & Black Banana-Alligator clip Cables
1 x USB- to DC Jack Power Cable
1 x User manual