1. Úvod a konecview
This manual provides detailed instructions for the SK35H and SK80H CNC DC Buck Boost Converter modules. These modules are designed to function as adjustable voltage and current regulators, offering constant power output for a wide range of applications. They feature a large-screen LCD display for clear monitoring of all operational states and incorporate robust protection mechanisms to ensure safe and reliable performance.
2. Bezpečnostní informace
- Always ensure correct input and output polarity before connecting the module. Incorrect connections can damage the device and connected equipment.
- Nepřekračujte stanovený vstupní objemtage, output current, or output power limits for your specific model (SK35H or SK80H).
- Ensure adequate ventilation around the module, especially during high-power operation, to prevent overheating. The module includes a thickened heat sink for heat dissipation.
- Avoid touching exposed terminals or components while the module is powered on.
- Keep the module away from moisture, dust, and corrosive environments.
- If the module exhibits abnormal behavior (e.g., smoke, unusual odors, excessive heat), immediately disconnect power.
3. Vlastnosti produktu
- Vysoce kvalitní materiály pro odolnost.
- CNC DC voltage rise and fall (buck-boost) capability.
- Large-screen, full-view dedicated power LCD for clear display of all states.
- Integrated molded frosted panel with a high-quality aluminum alloy knob cap for improved user experience.
- Wide application range for various power supply needs.
- Rich input interfaces (note: do not use two or more interfaces simultaneously).
- Reasonable air outlet and heat dissipation structure with a thickened heat sink.
- Comprehensive protection mechanisms: Anti-reverse connection, Anti-backflow, Input Undervoltage Protection (LUP), Output Overvoltage Protection (OVP), Output Overcurrent Protection (OCP), Output Over-power Protection (OPP), Over-temperature Protection, Timeout Protection (OHP), Overcapacity Protection (OAH), and Over-energy Protection (OPH).
4. Specifikace
4.1. General Parameters
| Parametr | SK35H | SK80H |
|---|---|---|
| Vstupní objemtage | 5.0 ~ 30V | 6.0 ~ 36V |
| Výstupní objemtage | 0.6 ~ 30V | 0.6 ~ 36V |
| Výstupní proud | 0 ~ 4.0A | 0 ~ 5.0A |
| Výstupní výkon | 35W | 80W |
| svtage Rozlišení | 0.01V | |
| Aktuální rozlišení | 0.001A | |
| svtage Přesnost | ± 0.5% + 1 word | |
| Aktuální přesnost | ± 0.5 % + 3 slova | |
| Účinnost konverze | ~88 % | |
| Měkký start | Ano | |
| Input Anti-reverse Connection | Ano | |
| Output Anti-backflow | Ano | |
4.2. Protection Mechanisms (Adjustable Ranges)
| Ochrana | Nastavitelný rozsah | Výchozí hodnota |
|---|---|---|
| Vstup Podvoltage (LUP) | 4.7 ~ 30V | 4.7V |
| Output Overvoltage (OVP) | 0 ~ 37V | 37V |
| Output Overcurrent (OCP) | 0 ~ 5.2A | 5.2A |
| Output Over-power (OPP) | 0 ~ 82 W | 82W |
| Přehřátí | N/A | 100 °C |
| Timeout (OHP) | 0 ~ 100 hodin | Vypnuto |
| Overcapacity (OAH) | 0 ~ 9999 AH | Vypnuto |
| Nadměrná energie (OPH) | 0 ~ 9999WH | Vypnuto |
4.3. Fyzické rozměry
- Module Dimensions: 79mm (Length) x 43mm (Width) x 25mm (Height)
- Suggested Opening Size for Installation: 71.3mm x 39mm
- Hmotnost: 97g

5. Obsah balení
- Adjustable regulated power supply module x 1
6. Nastavení
6.1. Připojení vodičů
The module features lift-type terminals for secure fixation of wires. Ensure correct polarity when connecting input and output wires.
- Vstup: Connect your DC power source to the input terminals. Observe the specified input voltage range for your model.
- výstup: Connect your load to the output terminals.

6.2. Montáž
If integrating the module into an enclosure, use the suggested opening size of 71.3mm x 39mm for a flush fit. Ensure the front of the shell, equipped with invisible air inlets, and the heat sink have sufficient clearance for proper airflow and heat dissipation.
7. Návod k obsluze
7.1. Rozhraní Overview
The module features a large LCD display and several control buttons and a rotary encoder.

7.2. Souhrn funkcí tlačítek

7.3. Nastavení Voltage a proud
In the operation interface:
- Stiskněte tlačítko V / A button to enter the setting voltage and current interface.
- The LCD will display 'SET CV' and the voltage value will flash. Press SW or rotate the rotary encoder to select the bit to adjust. Adjust the voltage using the rotary encoder.
- Stiskněte tlačítko V / A button again. The LCD will display 'SET CC' and the current value will flash. Press SW or rotate the rotary encoder to select the bit to adjust. Adjust the current using the rotary encoder.
- Stiskněte tlačítko V / A button again to exit and save the settings, returning to the operating interface.
- Alternatively, long press the V / A button for 2 seconds or wait for 6 seconds without any key operation. The system will automatically exit and save the settings.

7.4. Rychlé nastavení hlasitostitage nebo Aktuální
In the parameter setting interface (see Section 8):
- Set parameter 'FET' to 'CV' (default voltage), 'CC' (default current), or 'OFF' (no action).
- Rotate the encoder in the operation interface, then enter the setting voltage and current interface. The rotary encoder can quickly set the voltage nebo aktuální.

7.5. Input and Output Voltage Displej
In the running interface, press the SW tlačítko pro přepínání mezi zobrazením vstupní hlasitostitage ('IN') and the output voltage ('OUT').
7.6. View Power (W), Capacity (Ah), Energy (Wh), and Time (h)
In the operation interface, short press the encoder button to switch the display between power (W), capacity (Ah), energy (Wh), and time (h).

7.7. Funkce uzamčení
To prevent misoperation, the module has a locking function:
- V operačním rozhraní dlouze stiskněte tlačítko kodéru na 2 sekundy, aby se zablokoval objemtage and current settings. A lock symbol will appear on the display.
- To unlock, long press the encoder button for 2 seconds again.

8. Nastavení parametrů
8.1. Entering the Parameter Setting Screen
From the running screen, hold down the SW button for 2 seconds to enter the parameter setting screen.

8.2. Navigating and Adjusting Parameters
- Stiskněte SW to switch between the parameters to be set.
- Press the encoder button to switch the bit selection.
- Rotate the encoder to adjust the parameter values.
- After completing all settings, hold down the SW button for 2 seconds to exit the setting screen. All settings are automatically saved.
8.3. Details of Other Functions
8.3.1. Capacity/Energy/Running Time Statistics
- When the power is turned ON, statistics automatically start.
- When the power is turned OFF, the previous state's value is displayed.
- When power is turned ON again, the record automatically restarts.
- On the corresponding screen, press and hold the ON/OFF button for 2 seconds to clear the corresponding data.
8.3.2. Setting Maximum Capacity (OAH), Maximum Energy (OPH), and Maximum Running Time (OHP)
- Maximum Capacity (OAH)/Energy (OPH): When enabled, if the statistical capacity/energy exceeds the set maximum, the power supply automatically shuts down the output and flashes "OAH" / "OPH". After the alarm is removed, the capacity/energy statistics are cleared.
- Maximum Discharge Time (OHP): When enabled, if the running time exceeds the set maximum discharge time, the power output is automatically turned off and "OHP" blinks. After the OHP alarm is lifted, the time statistics are cleared.
Poznámka:
- When OAH/OPH and OHP functions are not enabled, the power supply automatically records capacity/energy and running time.
- If OAH/OPH functions are enabled, the power supply automatically shuts down the output after reaching the set value.
- If OHP function is enabled, the running time of the power supply is in countdown mode.
9. Ochranné mechanismy
The module includes comprehensive protection features to safeguard itself and connected equipment. These can be configured in the parameter setting menu.
- Vstup Podvoltage Protection (LUP): Adjustable from 4.7V to 30V (default 4.7V). Prevents operation with insufficient input voltage.
- Output Overvoltage Ochrana (OVP): Adjustable from 0V to 37V (default 37V). Shuts off output if voltage překračuje stanovený limit.
- Ochrana proti nadproudu na výstupu (OCP): Adjustable from 0A to 5.2A (default 5.2A). Disables output if current exceeds the set limit.
- Output Over-power Protection (OPP): Adjustable from 0W to 82W (default 82W). Turns off output if power consumption exceeds the set limit.
- Ochrana proti přehřátí: Automatically activates if the module's temperature exceeds 100°C.
- Ochrana proti časovému limitu (OHP): Adjustable from 0 to 100 hours (default off). Shuts down output after a set operating duration.
- Overcapacity Protection (OAH): Adjustable from 0 to 9999AH (default off). Disables output if total discharged capacity exceeds the set limit.
- Over-energy Protection (OPH): Adjustable from 0 to 9999WH (default off). Disables output if total discharged energy exceeds the set limit.
- Input Anti-reverse Connection: Protects the module from damage if input polarity is reversed.
- Output Anti-backflow: Zabraňuje zpětnému toku proudu ze zátěže do modulu.
10. Uživatelské tipy
- Pro přesný objemtage and current adjustments, use the rotary encoder carefully, especially when fine-tuning.
- Regularly check the module's temperature during extended high-power operation. While it has a thickened heat sink, additional cooling might be beneficial in enclosed spaces or high ambient temperatures.
- Utilize the locking function (Section 7.7) to prevent accidental changes to settings, particularly in critical applications.
- Familiarize yourself with the protection mechanisms and set appropriate limits for your application to prevent damage to the module or your load.
11. Řešení problémů
- Žádný výstup:
- Check input power supply connections and ensure it is within the specified voltage rozsah.
- Verify that the output is enabled (ON/OFF button).
- Check if any protection (OVP, OCP, OPP, LUP, OHP, OAH, OPH) has been triggered. The display will show the corresponding alarm. Clear the alarm by addressing the cause or pressing the ON/OFF button.
- Ensure the output current/voltage settings are not set to 0.
- Nesprávný svtage/Proudový výstup:
- Recalibrate the voltage and current settings as per Section 7.3.
- Check the load for any short circuits or excessive current draw.
- Zajistěte vstupní objtage is stable and sufficient for the desired output.
- Přehřátí modulu:
- Reduce the output power or current.
- Zajistěte dostatečné větrání kolem modulu.
- Zkontrolujte, zda není okolní teplota příliš vysoká.
- Displej nefunguje:
- Check input power.
- Ujistěte se, že připojení jsou bezpečná.
12. Údržba
- Udržujte modul čistý a bez prachu. K čištění používejte měkký, suchý hadřík.
- Regularly inspect wiring connections for tightness and signs of wear or corrosion.
- Pokud modul nepoužíváte, skladujte jej v suchém a chladném prostředí.
13. Záruka a podpora
For any issues not covered in this manual, or for warranty claims, please contact the seller or manufacturer directly. Provide your product model (SK35H or SK80H) and a detailed description of the problem for efficient support.



