# Automatic power supply with display, USB, CV-CC, 15W, 0.5-30V

- Page: https://sigmanortec.ro/en/automatic-power-supply-with-display-usb-cv-cc-15w-05-30v
- Price: 69.03 RON
- Availability: Out of stock
- Reference: 9304 · EAN: 5945750096680
- Category: Electronic components > Other Tension Modules
- Specifications: Power: 0 - 20W; Minimum Output Voltage: 0.5; Maximum Output Voltage: 30; Source Type: Automatic; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.058 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

Step-down DC power supply module with CV-CC, ideal for testing and charging batteries with current limitation. Offers fine adjustment 0.5-30V from 5-12V supply, up to 15W and 2A, display with voltage, current and power, quick control via ON/OFF and SELECT buttons. Flexible power supply via USB, MicroUSB or pads, includes front acrylic case.
Constant current and voltage step-down/step-up source, with USB male plug and MicroUSB input, which allows the output voltage to be adjusted between 5 and 30VDC from a voltage between 5 and 12VDC. It has a display for displaying output voltage, current and power. The two integrated buttons integrate the function of ON/OFF and switching between the parameters shown on the display.
The output is configured through a 2-pin connector and power can be provided both through the two USB plugs and by gluing the power wires to the two pads present on the module.
The module is accompanied by the front and front casing (the sides remain exposed) which are assembled with the help of the screws and spacers included in the kit.
The voltage and current adjustment is made by turning the two long-axis potentiometers and provides constant voltage and current (CV and DC). This makes the mod a suitable tool for charging batteries that need constant current for charging.
Specifications:
Supply voltage: 5 - 12VDC
Output voltage: 0.5 - 30VDC
Case material: Acrylic
Type: Lower - Raiser
Maximum output current: 2A
Power: 15W
Display: Tube, 4 digits, Red
Protection: Short circuit, anti-backflow, over-current, over-voltage, over-power, over-temperature.
Voltage display accuracy: +/- 0.1V
Accuracy of current display: 0.05A
Resolution: Voltage and direct current adjustable by potentiometer
Conversion efficiency: 95%
Operating consumption: 30mA
Operating ambient temperature: -20 - 85 degrees C
Operating ambient humidity: 0 - 95% RH
Dimensions mm: 84 x 35 x 14
Use:
Calibration:
If the displayed voltage or current is not correct, there is the possibility to recalibrate the displayed values.
1. Select the value to be calibrated. This must be displayed constantly.
2. Hold down the SELECT button for at least 3 seconds.
3. The value will be displayed intermittently. Connect the measuring device to read the value to be calibrated.
4. Use a short press of the ON and SELECT buttons to change the displayed value by minus or plus.
To calibrate the current you need a connected load. In the state of "0 A" no changes can be made. It is recommended to calibrate at a current of over 1A because the margin of error is greater at lower values.
It may be necessary to press the ON and SELECT buttons more than once to decrease/increase the calibrated value. Pressing the button is recorded only when the display is on.