DROK DC Adjustable Buck Converter (Model F-MP2304) Instruction Manual

1. ഉൽപ്പന്നം കഴിഞ്ഞുview

The DROK DC Adjustable Buck Converter is a versatile step-down voltage regulator designed to convert a higher DC input voltage to a lower, adjustable DC output voltage. This module features a large LCD screen for simultaneous display of voltage and current, a USB output port, and comes with a protective acrylic case for enhanced durability. It is suitable for various applications including power supply, battery charging, and LED driving.

• ഇൻപുട്ട് വോളിയംtagഇ ശ്രേണി: 6V-32V
• Putട്ട്പുട്ട് വോളിയംtagഇ ശ്രേണി: 1.25V-32V (Input must be at least 1.5V higher than output)
• പരമാവധി ഔട്ട്പുട്ട് കറൻ്റ്: 5A (recommended within 4.5A)
• പരമാവധി ഔട്ട്പുട്ട് പവർ: 75W (recommended within 50W)
• ഡിസ്പ്ലേ: LCD screen showing voltagഇയും കറൻ്റും
• ഫീച്ചറുകൾ: സ്ഥിരമായ വോളിയംtage and current modes, voltage and current calibration, USB output port.

2. ഘടക ഐഡന്റിഫിക്കേഷൻ

Familiarize yourself with the key components and indicators of the buck converter module.

ചിത്രം 2.1: മുൻഭാഗം View ലേബൽ ചെയ്ത ഘടകങ്ങൾക്കൊപ്പം
This image displays the front of the DROK DC Adjustable Buck Converter, highlighting key features such as the LCD Voltage Current Dual Display, USB Indicator, Input/Output terminals, Setting & Mode buttons, and adjustment potentiometers for Voltage and Current Regulation. It also shows indicators for Constant Current, Charging, and Full Charged status.

ചിത്രം 2.2: പിൻഭാഗം View with Internal Components
This image shows the rear side of the buck converter, revealing internal components such as the Power Supply Chip (where a cooling fan can be attached), the main inductor, Large Current Schottky diode, Single Chip Microcomputer, and the USB Output port. Input and Output terminals are also visible.

3. Protective Case Assembly

The buck converter comes with a protective acrylic case that requires simple assembly. The case protects the module from accidental contact and provides a stable mounting platform.

3.1. അസംബ്ലി ഘട്ടങ്ങൾ

1. Carefully remove all acrylic panels and screws from the packaging.
2. Place the buck converter module onto the bottom acrylic panel, aligning the mounting holes.
3. Secure the module to the bottom panel using the provided copper cylinder screws (M3*6) and roundhead screws (M3*6).
4. Attach the four double-pass screws (M3*12) to the corners of the bottom panel, which will serve as standoffs for the top panel.
5. Place the top acrylic panel onto the double-pass screws, aligning the holes.
6. Secure the top panel using the remaining roundhead screws (M3*6).

Figure 3.1: Assembled Module with Dimensions
This image shows the DROK buck converter fully assembled within its clear acrylic protective case, with dimensions of 65.6mm (length), 40mm (width), and 25mm (height) indicated.

4 സ്പെസിഫിക്കേഷനുകൾ

Detailed technical specifications for the DROK DC Adjustable Buck Converter.

5. പ്രവർത്തന നിർദ്ദേശങ്ങൾ

5.1. Basic Connection

1. Connect your DC input power source to the VIN+ ഒപ്പം VIN- terminals. Ensure correct polarity as there is no input reverse polarity protection.
2. Connect your load to the വൗട്ട്+ ഒപ്പം VOUT- ടെർമിനലുകൾ.
3. Power on the input source. The LCD will display the current input and output voltagഇ/കറന്റ്.

5.2. വോളിയംtagഇ അഡ്ജസ്റ്റ്മെൻ്റ്

ഔട്ട്പുട്ട് വോളിയം ക്രമീകരിക്കുന്നതിന്tage:

• കണ്ടെത്തുക ADJ-V potentiometer (usually labeled 'V' or 'Voltage Regulation').
• Turn the potentiometer clockwise to increase the output voltage.
• Turn the potentiometer counter-clockwise to decrease the output voltage.
• Monitor the LCD display for the desired output voltage.

5.3. Current Adjustment (Constant Current Mode)

The module can operate in constant current mode, useful for battery charging or driving LEDs. Current adjustment is effective only when the output voltage 2V ന് മുകളിലാണ്.

• കണ്ടെത്തുക ADJ-I potentiometer (usually labeled 'I' or 'Current Regulation').
• To set the constant current limit, short the output terminals (VOUT+ and VOUT-) with an ammeter or a suitable load.
• തിരിയുക ADJ-I potentiometer clockwise to increase the current limit.
• തിരിയുക ADJ-I potentiometer counter-clockwise to decrease the current limit.
• Once the desired current limit is set, remove the short circuit or connect your actual load. The module will limit the current to the set value if the load attempts to draw more.

5.4. വോളിയംtage Calibration Method

പ്രദർശിപ്പിച്ച വോള്യം ആണെങ്കിൽtage is inaccurate, follow these steps to calibrate:

1. Ensure the module is powered off.
2. അമർത്തിപ്പിടിക്കുക "സെറ്റ്" key, then power on the module. The LCD screen will start to flash, indicating entry into voltagഇ കാലിബ്രേഷൻ മോഡ്.
3. റിലീസ് ചെയ്യുക "സെറ്റ്" താക്കോൽ.
4. ഉപയോഗിക്കുക "സെറ്റ്" ഒപ്പം "ENT" keys to adjust the displayed voltage to match the actual input voltage measured with a precise multimeter.
5. The calibration will automatically save after 2 seconds of inactivity. Power off the module to complete the calibration.

5.5. Current Calibration Method

This method is suitable for no-load current display or slightly large current applications.

1. Ensure the module is powered off.
2. അമർത്തിപ്പിടിക്കുക "ENT" key, then power on the module. The LCD screen will start to flash, indicating entry into current calibration mode.
3. റിലീസ് ചെയ്യുക "ENT" താക്കോൽ.
4. ഉപയോഗിക്കുക "സെറ്റ്" ഒപ്പം "ENT" keys to adjust the displayed current to match the actual current measured with a precise ammeter.
5. The calibration will automatically save after 2 seconds of inactivity. Power off the module to complete the calibration.

5.6. യുഎസ്ബി പോർട്ട് പ്രവർത്തനം

The integrated USB port provides an output voltage identical to the main output terminals (VOUT). It is important to note:

• വാല്യംtagഇ പൊരുത്തം: If the main output is set to 10V, the USB port will also output 10V, not the standard 5V. Always verify the output voltage before connecting standard USB devices to prevent damage.
• Power Cycle Behavior: The USB port does not remain enabled during a power off/on sequence. While the converter remembers the voltage setting, the USB port will disable and must be manually re-enabled after each power cycle.

6. പരിപാലനം

To ensure optimal performance and longevity of your DROK Buck Converter:

• താപ വിസർജ്ജനം: When operating at currents higher than 3A or power exceeding 35W, it is crucial to enhance heat dissipation. Consider attaching a cooling fan to the designated area on the power supply chip (refer to Figure 2.2) or using a heatsink.
• ശുചിത്വം: Keep the module free from dust and debris. Use a soft, dry brush or compressed air for cleaning.
• പരിസ്ഥിതി വ്യവസ്ഥകൾ: Operate the module within the specified temperature range (-20°C to +70°C) and avoid high humidity environments.
• കണക്ഷനുകൾ: Periodically check all input and output connections to ensure they are secure and free from corrosion.

7. Troubleshooting and Safety Precautions

7.1. പ്രധാനപ്പെട്ട സുരക്ഷാ മുൻകരുതലുകൾ

• ശരിയായ വാല്യംtagഇ ക്രമീകരണം: Always verify the output voltage setting before connecting any device to the converter. Incorrect voltage can damage your equipment.
• USB പോർട്ട് വോളിയംtage: Be aware that the USB port output voltage matches the main output voltage. It is NOT fixed at 5V. Connecting 5V-only devices when the output is higher than 5V will cause damage.
• No Input Reverse Polarity Protection: Ensure input power is connected with correct polarity (VIN+ to positive, VIN- to negative). Reverse connection will damage the module.
• ഇൻപുട്ട് വോളിയംtagഇ ആവശ്യകത: ഇൻപുട്ട് വോളിയംtage must always be at least 1.5V higher than the desired output voltage for proper buck conversion.
• ചൂട് മാനേജ്മെൻ്റ്: Operating at high power (over 35W) or high current (over 3A) without adequate heat dissipation can lead to overheating and automatic shutdown due to over-temperature protection. Ensure proper cooling.
• ഷോർട്ട് സർക്യൂട്ട് സംരക്ഷണം: The module includes short circuit protection, but prolonged short circuits should be avoided.

7.2. പൊതുവായ പ്രശ്നങ്ങൾ

• ഔട്ട്പുട്ട് വോളിയം ഇല്ലtage: Check input power supply, ensure correct polarity, and verify that the input voltage is sufficient (at least 1.5V higher than the desired output).
• കൃത്യമല്ലാത്ത ഡിസ്പ്ലേ റീഡിംഗുകൾ: വോളിയം നടത്തുകtage and current calibration as described in Section 5.4 and 5.5.
• മൊഡ്യൂൾ അമിത ചൂടാക്കൽ: Reduce load or enhance heat dissipation by adding a heatsink or cooling fan, especially when operating at higher power/current levels.
• USB Port Not Working After Power Cycle: Manually re-enable the USB port after each power cycle, as it does not retain its enabled state.