1. Introducció
This manual provides detailed instructions for the safe and effective use of the DROK Buck-Boost Converter module. This device is an automatic step-up/down voltage regulator designed for various electronic applications requiring precise voltage i control de corrent.
2. Característiques
- Ampli rang d'entrada/sortida: Input DC 5.5-30V, Output DC 0.5-30V, arbitrarily adjustable.
- High Current & Power: Stable 3A output (up to 4A with enhanced heat dissipation), 35W output power (up to 50W with enhanced heat dissipation).
- Pantalla LCD: Real-time display of input/output voltage, corrent de sortida i potència de sortida.
- Alta resolució: Voltage display resolution of 0.05V, current display resolution of 0.005A.
- Proteccions de seguretat: Includes input reverse connection protection, output current feedback protection, and short-circuit protection.
- Soft Start Function: Helps prevent malfunction during startup, especially with high power loads.
- Control de botons: Easily switch between input/output display and control output ON/OFF state, with configurable default power-up state.
3. Especificacions
| Paràmetre | Valor |
|---|---|
| Entrada Voltage Rang | DC 5.5-30V (Note: Below 4.7V activates low voltage protection. At 5V, measurements may be inaccurate.) |
| Vol. De sortidatage Rang | DC 0.5-30V |
| Corrent de sortida | 3A (stable for long periods), up to 4A with enhanced heat dissipation |
| Potència de sortida | 35W (natural cooling), up to 50W with enhanced heat dissipation |
| Voltage Resolució de la pantalla | 0.05 V |
| Resolució de pantalla actual | 0.005A |
| Eficiència de conversió | Aprox. 88% |
| Inici suau | Sí |
| Protecció de connexió inversa d'entrada | Sí |
| Output Current Feedback Protection | Sí |
| Protecció contra curtcircuits | Sí |
| Freqüència de funcionament | 180 KHz |
| Dimensions (L x A x A) | 66 x 48 x 21 mm |
| Diàmetre del forat de muntatge | 4 mm |
4. Producte acabatview






5. Configuració i connexions
Before connecting the module, ensure your power source and load are within the specified voltage and current ranges. Observe proper polarity to prevent damage.
5.1 Connexions de terminals
- IN+: Positive input terminal. Connect to the positive (+) pole of your DC power source.
- IN-: Negative input terminal. Connect to the negative (-) pole of your DC power source.
- SORTIDA+: Positive output terminal. Connect to the positive (+) pole of your load.
- OUT-: Negative output terminal. Connect to the negative (-) pole of your load.

5.2 Muntatge (si escau)
The module may come with a clear acrylic case. Carefully peel off the protective film from all acrylic pieces. Assemble the case around the module, ensuring all cutouts align with the ports and buttons. Use the provided screws and standoffs to secure the assembly.
6. Instruccions de funcionament
The module features an LCD display and control buttons for easy operation.
6.1 Display Modes and Button Functions

- IN/OUT Button (Short Press): Toggles between displaying input voltage i sortida voltage.
- IN/OUT Button (Long Press): Toggles between displaying output power (W) and output current (A).
- ON/OFF Button (Short Press): Toggles the output ON or OFF.
- ON/OFF Button (Long Press): Enters/exits the default power-up state setting. When in this mode, a short press of the ON/OFF button will switch the default state between ON and OFF. The selected state will be saved.

6.2 voltage i Ajust de corrent
The module has two potentiometers for fine-tuning the output voltage i actual:
- CV (Constant Voltage) Potentiometer: Ajusta el volum de sortidatage. Turn clockwise to increase voltage, counter-clockwise to decrease.
- CC (Constant Current) Potentiometer: Adjusts the constant current limit. Turn clockwise to increase the current limit, counter-clockwise to decrease. This is used for applications like battery charging or driving LEDs.
Note: Use a small screwdriver to adjust these potentiometers. Make adjustments carefully and monitor the output on the LCD or with an external multimeter.
7. Solució De Problemes
- No Display/No Output:
- Check input power supply. Ensure it is within the 5.5-30V range.
- Verify input polarity. Reverse connection protection is present, but incorrect wiring should be avoided.
- Ensure the output is not turned OFF via the ON/OFF button.
- Lectures inexactes:
- Si l'entrada voltage is close to 5V (e.g., 5V from a USB power bank), the internal measurements may be inaccurate. Use an external multimeter for precise readings in such cases.
- Vol. De sortidatage/Current Not Adjusting:
- Ensure the potentiometers are being turned correctly. They may require multiple turns to see significant changes.
- Check if the module is in constant current (CC) mode if you are trying to adjust voltage but the load is drawing maximum current. The voltage will drop to maintain the set current.
- Sobreescalfament del mòdul:
- Assegureu una ventilació adequada.
- If operating near maximum power (35W-50W) or current (3A-4A), consider adding external heat sinks or forced air cooling.
- Malfunction on Startup with High Load:
- The soft start feature is designed to mitigate this, but very high inductive or capacitive loads might still cause issues. Try connecting the load after the module has stabilized.
8. Manteniment
The DROK Buck-Boost Converter module requires minimal maintenance. Keep the module clean and free from dust and debris. Avoid exposing it to moisture or extreme temperatures. Periodically check connections for tightness and ensure no wires are frayed or damaged.
9. Informació de seguretat
- Always ensure correct input and output polarity before powering on the module.
- No supereu el volum d'entrada màxim especificattage, output current, or output power.
- This module generates heat during operation. Ensure adequate ventilation, especially when operating at higher power levels.
- Avoid touching the components while the module is powered on, as some parts may become hot.
- Mantenir fora de l'abast dels nens.
- If you are unsure about any aspect of connecting or operating this module, consult a qualified professional.





