1. Uvod
This manual provides detailed instructions for the safe and efficient use of your DROK DC-DC Buck Converter. This module is designed to step down a higher DC input voltage to a lower, adjustable DC output voltage, featuring an LCD display for real-time monitoring of voltage, tok in moč.
2. Značilnosti izdelka
- Wide Input Voltage Domet: DC 6.5V do 36V.
- Nastavljiva izhodna voltage: DC 1.2V to 32V. Factory default output is 5V.
- Visok izhodni tok: Stable operation at 3.5A for extended periods, capable of reaching 4.5A with adequate heat dissipation. Adjustable current limit is approximately 4.2A-4.5A.
- LCD zaslon: Prikaže vhodno voltage, izhodna voltage, izhodni tok in izhodna moč.
- Visoka ločljivost zaslona: voltage resolution of 0.05V, current resolution of 0.005A.
- Natančnost prikaza: voltage display accuracy of ±0.1V, current display accuracy of ±0.05A.
- Upravljanje gumbov: Easy adjustment of output voltage and control of output ON/OFF state without a screwdriver.
- Input Reverse Connection Protection: Protects the module from damage due to incorrect input polarity.
- Zaščitni Casing: Includes a transparent acrylic case to prevent physical damage to the module.
3. Varnostni ukrepi
- Zagotovite pravilen vnos voltage polarity. The module has input reverse connection protection, but always verify connections.
- Obstaja no reverse current protection on the output terminals. Do not connect a battery or other power source to the output without an external diode to prevent reverse current flow, as this can damage the module.
- Do not short-circuit the Input IN- terminal to the Output OUT- terminal. This will disable the constant current function.
- Ensure proper ventilation, especially when operating at higher currents (above 3.5A) to allow for adequate heat dissipation.
- Always verify the output voltage setting before connecting any load to prevent damage to your devices.
- Handle the module with care, especially during assembly of the acrylic case, to avoid damage to components.
4. Specifikacije
| Parameter | Vrednost |
|---|---|
| Vhodna voltage Območje | DC 6.5 V - 36 V |
| Izhodna voltage Območje | DC 1.2V - 32V (Adjustable) |
| Output Current (Stable) | 3.5A |
| Output Current (Max with Heat Dissipation) | 4.5A |
| Izhodna moč | 75 W |
| voltage Ločljivost zaslona | 0.05 V |
| Trenutna ločljivost zaslona | 0.005A |
| voltage Natančnost prikaza | ±0.1V |
| Trenutna natančnost prikaza | ± 0.05A |
| Dimenzije | 14.7 x 8 x 5.2 cm |
| Teža | 70 g |
5. Nastavitev
5.1 Identifikacija komponent
Familiarize yourself with the components of the buck converter module:
Figure 1: Component layout of the DROK buck converter. Labels indicate input/output terminals, LCD display, control buttons, and the voltage nastavitveni potenciometer.
5.2 Acrylic Case Assembly
The module comes with a transparent acrylic case for protection. Assembly is straightforward:
- Identify the top and bottom acrylic plates, standoffs, and screws.
- Carefully align the bottom acrylic plate with the mounting holes on the PCB.
- Insert the brass standoffs through the bottom plate and into the PCB.
- Place the top acrylic plate over the standoffs, ensuring all cutouts align with the module's components (terminals, buttons, screen).
- Secure the top plate with the remaining screws. Do not overtighten.
Figure 2: Disassembled module with acrylic case components.
Figure 3: Assembled module with protective case.
5.3 Žične povezave
Connect your power source and load to the module using the screw terminals:
- Input (IN+ / IN-): Connect your DC power source (6.5V-36V) to these terminals. Ensure correct polarity: IN+ for positive, IN- for negative.
- Output (OUT+ / OUT-): Connect your load to these terminals. Ensure correct polarity: OUT+ for positive, OUT- for negative.
Note: Always double-check wiring before applying power.
6. Navodila za uporabo
6.1 Vklop/izklop
- After connecting the input power, the LCD will light up.
- Pritisnite VKLOP/IZKLOP button (usually on the left side) to toggle the output power.
- To set the default power-on state (output ON or OFF), press and hold the VKLOP/IZKLOP button. The module will remember this setting for subsequent power cycles.
6.2 Prilagajanje izhodne glasnostitage
Izhodna voltage is adjusted using the two buttons on the right side of the module:
- Pritisnite '+' button to increase the output voltage.
- Pritisnite '-' button to decrease the output voltage.
- The LCD will display the current output voltage during adjustment.
6.3 LCD Display Modes
The module features an LCD that can display various parameters. Use the button on the left (often labeled 'IN/OUT' or similar) to cycle through display modes:
- Izhodna voltage (OUT V): Prikazuje trenutno izhodno glasnosttage.
- Vhodna voltage (IN V): Prikazuje trenutno vhodno glasnosttage.
- Vhodna/izhodna glasnosttage (IN/OUT V): Alternates between input and output voltage zaslon.
- Output Current (OUT A): Displays the current flowing through the output.
- Output Power (OUT W): Displays the calculated output power.
Slika 4: Izhodna voltage Zaslon
Figure 5: Input Voltage Zaslon
Figure 6: Input/Output Voltage Zaslon
Figure 7: USB Output Voltage Display (if applicable)
6.4 Constant Current (CC) Adjustment
The module supports constant current output. The current limit can be adjusted using the small potentiometer (ADJ-I) on the board. Turn clockwise to increase the current limit. This is typically set to approximately 4.2A-4.5A at the factory.
7. Vzdrževanje
- Modul naj bo čist in brez prahu ter umazanije. Za čiščenje uporabljajte mehko, suho krpo.
- Ensure adequate airflow around the module, especially when operating at higher loads, to prevent overheating.
- Redno preverjajte tesnost priključkov in morebitne znake obrabe ali korozije.
- Modula ne izpostavljajte vlagi, ekstremnim temperaturam ali korozivnemu okolju.
8. Odpravljanje težav
| Težava | Možen vzrok | rešitev |
|---|---|---|
| Brez prikaza/brez izhoda | No input power; Incorrect input polarity; Output turned off. | Check input power connections; Verify input polarity; Press the ON/OFF button to enable output. |
| Izhodna voltage ni mogoče prilagoditi | Potentiometer at its limit; Faulty potentiometer. | Ensure the adjustment buttons are being pressed correctly; If still unresponsive, contact support. |
| Constant current function not working | Input IN- short-circuited to Output OUT-. | Check wiring to ensure IN- and OUT- are not connected. |
| Pregrevanje modula | Excessive load current; Insufficient ventilation. | Reduce load current; Ensure adequate airflow around the module; Consider adding a fan for continuous high-current operation. |
9. Videoposnetki izdelkov
Watch these official videos for additional guidance on using your DROK Buck Converter:
Video 1: Demonstration of the buck converter's features and operation.
Video 2: Detailed guide on setting up and adjusting the output voltage.
Video 3: Kratek overview of the module's display functions.
Video 4: Comprehensive tutorial on advanced usage and applications.
10. Garancija in podpora
For warranty information or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt for warranty claims.
