Top 9 Buck Converter With Variable Output And Cooling Fan

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1. PEMENOL DC Buck Converter 5.5-30V to 0.5-30V 60W 5A Constant Current Constant Voltage Adjustable Step Up Down Power Supply Module Voltage Regulator with Cooling Fan LCD Display

PEMENOL DC Buck Converter 5.5-30V to 0.5-30V 60W 5A Constant Current Constant Voltage Adjustable Step Up Down Power Supply Module Voltage Regulator with Cooling Fan LCD Display

Feature

Description

Size:5.5-30V to 0.5-30V

PEMENOL DC 5V 12V 24V timer relay module function with timing, delay and cycle control. With dual MOS output, digital tube display and reverse connection protection function, our timer relay board can be widely used at smart home, tndustrial control, automatic irrigation, indoor ventilation and protection equipment.

Parameters:
Input voltage: 5.5-30V (when the input voltage is 5V, the buck-boost can also be realized, but the voltage and current measurement is not accurate; when it is lower than 4.7V, the under-voltage protection will work)
Output voltage: 0.5-30V
Output current: up to 6A
Output power: 60W
Voltage display resolution: 0.01V, accuracy error 1%
Current display resolution: 0.001A, accuracy error 1%
Conversion efficiency: about 88%
Soft start: Yes (very large power load module may fail when started)
Power protection: 60W
Overcurrent protection: 6A
Working frequency: 180KHZ
Fan rotation conditions: current greater than 3A, or power greater than 20W, or temperature greater than 40 °C.
Size: 72*59*43mm
Mounting hole: diameter 3mm
Weight: 107g
Package:
1x Buck Boost Converter Module

Note:
1.The module input IN- is forbidden to be shorted to the output OUT-.
2.Please ensure that the power of the power supply is greater than the power required by the output load!
3.If the module wants full load output, the input voltage should be 8V or more. When the input voltage is 5V, the output power is about 15W, and the voltage ammeter fails.The maximum current value of the module is 4A, which is limited by the maximum output power. For example, the output is 17V, and the current should be no more than 2A. This module has an output short circuit protection function. After short-circuit protection, the module automatically turns off the output, and the module can be restored after power-on.

2. Power Supply Module, DROK DC to DC Converter 5.3V-32V to 1.2V-32V Step Down Voltage Regulator 12A LCD Volt Transformer 160W CC CV Buck Converter Reducer

Power Supply Module, DROK DC to DC Converter 5.3V-32V to 1.2V-32V Step Down Voltage Regulator 12A LCD Volt Transformer 160W CC CV Buck Converter Reducer

Feature

3. DC Voltage Regulator, DROK DC-DC Buck Converter Module 10V-75V to 0-60V 12A Adjustable Power Supply Step Down Transformer Board DKP6012 CC CV Numerical Control Volt Reducer

DC Voltage Regulator, DROK DC-DC Buck Converter Module 10V-75V to 0-60V 12A Adjustable Power Supply Step Down Transformer Board DKP6012 CC CV Numerical Control Volt Reducer

Feature

Description

DROK Step Down Voltage Regulator 

Product Parameters:
Input Voltage Range: 10V-75V
Adjustable Output Voltage Range: 0-60V
Adjustable Output Current Range: 0-12A
Output Power: 0-720W
Output Voltage Setting Resolution: 10mV
Output Current Setting Resolution: 10mA
Power Supply Effect: CV<0.5%+10mV  CC<1%+10mA
Load Effect: CV<0.5%+10mV  CC<1%+10mA
Output Ripple: < 50mVpp(input 54V,output 12V,current 5A)
100Hz Fluctuation Transmission Ratio:< 1/10000
Typical Efficiency: 94% (input 54V, output 30V, current 5A)
Voltage Display Error:  ±1%+20mV
Current Display Error:  ±1%+20mA
Response Time: <50ms
Save Operation: M0~M9 10 groups of data

Product Features:
The DKP6012 DC-DC numerical control buck voltage converter is a programmable buck module with all-digital LED display which can display real-time voltage and current.
Compared to the similar product, you will find that this buck module has a compact size and it works efficiently and stable. 
We applied advanced microprocessor control for this buck module. Voltage and current can be adjusted accurately by pressing the button, you can adjust it to output constant voltage and current. 

Package Includes:
1 X DROK DC-DC Buck Converter Module

4. DROK NC Adjustable Voltage Regulator Buck Converter DC 6-60V Step Down to 0-50V Power Supply Stabilizer Module 15A 750W Step-down Volt Transformer

DROK NC Adjustable Voltage Regulator Buck Converter DC 6-60V Step Down to 0-50V Power Supply Stabilizer Module 15A 750W Step-down Volt Transformer

Feature

Description

Technical Parameters:
Input voltage range:  DC6~60.00V 
Output voltage range:  0V~50.00V
Output current: 0~15.00A
Output power range: 0~750.0W 
Product Weight: about 113g
Opening size:  71mm*39mm 
Output voltage resolution: 0.01V
Output current resolution: 0.01A 
Output Voltage accuracy: ± (0.5% + 1 digits)
Output Current accuracy: ± (0.5% + 2 digit)
NOTE: Please make sure that the input voltage is 1.1 times higher than output voltage. Under large current circumstances, please pay attention to heat elimination.  

Note:
Input voltage range is DC 6-55V and 55v is the limit voltage, please leave a room to use, otherwise it will be burnt. 
The input must be DC power supply, not AC 220V, or else it will be burnt too. 
Though this module has reverse connection protection and output short circuit protection, you must be in strict accordance with connection description to connect. If you connect the supply power with output, the module will be burnt.

Package Includes:
1* DC Adjustable Constant Voltage Power Module
1* Digital Meter
1* Cable

5. DZS Elec 20A DC-DC Step Down Buck Converter Module 6-40V to1.2-35V Adjustable Constant Voltage Constant Current Power Supply 300W Large Power Voltage Regulator Synchronous Rectification LED Drive

DZS Elec 20A DC-DC Step Down Buck Converter Module 6-40V to1.2-35V Adjustable Constant Voltage Constant Current Power Supply 300W Large Power Voltage Regulator Synchronous Rectification LED Drive

Feature

Description

Size:20A

Feature:
Module Name: 20A 300W DC Step Down Buck Converter
Input Voltage: DC 6-40V, Optimum input voltage 10-40V
Output Voltage: DC 1.2-35V ( continuously adjustable ), Recommended below 32V for long time work
Minimum Voltage Difference: 3V, output voltage should be lower than input voltage
Output Current: 20A (max), Recommended below 15A for long time work
Constant Current Range: 0.2-20A ( continuously adjustable )
Transfer Efficiency: 96% (MAX)
Output Ripple: About 50mV
Switching Frequency: 150KHz
Work Temperature: -40 degree to + 75 degree Celsius, please strengthen the heat dissipation or reduce the value if exceeds 65 degree.
CV Potentiometer: Increase voltage clockwise, decrease voltage counterclockwise
CC Potentiometer: Increase current clockwise, decrease current counterclockwise
Output Short-circuit Protection: Yes, (Instantaneous protection) Constant Current (The current constant current value should not short-circuit for a long time)
Output Anti-Perfusion: NO, For load with built-in electric or inductive negative load requires additional diodes
Connection Mode: Terminals
Module Size: 60x53x27mm/2.36×2.08×1.06 inch

Output voltage/current regulation method:
1. Adjust CV potentiometer according to your battery or LED, and set the output voltage to the value you need.
2. Turn the CC potentiometer clockwise for about 30 turns, set the output current to the minimum, connect the LED, and adjust the CC potentiometer to the current you need. If it is used for battery charging, after the battery is discharged, then connect to the output, and adjust CC potentiometer to the current you need. (the more residual battery power, the lower charging current).

Package Include:
1pcs 20A 300W DC Step Down Constant Voltage Constant Current Buck Converter

6. Buck Converter 12v to 5v, DROK Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module

Buck Converter 12v to 5v, DROK Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module

Feature

Description

DROK 12V to 5V Converter

Parameters:
Input Voltage: 6.5-36V  (if the input voltage is lower than 6.5v, current accuracy will be inaccurate; LCD display panel will not show anything if it is lower than 5.5V)
Output Voltage: 1.2-32V, factory default output 5v
Output Current: can work stably at 3.5A for a long time, and can reach 4.5A under the heat dissipation (adjustable current limit is about 4.2-4.5A)
Output Power: 50W(natural heat dissipation, within 3.5A); 75W(enhanced heat dissipation)
Voltage Display: resolution is 0.05V, display range is 1.2-32V, accuracy is ±0.1V
Current Display: resolution is 00005A, display range is 0-4.5A, accuracy is ±0.05A
Conversion Efficiency: about 94%
Working Current: about 30mA
Input Reverse Connection Protection: Yes
Output Anti-backflow: No (When charging the battery, you should electrify the module and then connect it to the battery, and make sure that the battery voltage is lower than the output voltage. If allowed, please connect output anode to the anti-backflow diode in series.)
Size: 70.5 * 48.4 * 28mm

Notes:
1. The input IN- can’t short-circuit to the output OUT-, otherwise, the constant current function will not work.
2. Please ensure that the power of the power supply is larger than the power required by the output load. If the module is hot, please reduce the power usage.
3. Please read the instructions carefully before using it.

Package Included:
1 x Buck Converter 12v to 5v

7. Valefod 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display

Valefod 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display

Feature

Description

Features:
– DC-DC step down module
– Thickened circuit boards
– Advanced solid-state capacitor
– Short circuit and over-temperature protection
– 100% tested, sealed in anti-static packaging

Kindly Note:
1. Input voltage must be 1.5 V higher than the output voltage, no boost
2. Do not reverse the input and output interface
3. Keep output under 2A (or 15W), and use a heat sink when for a long time working

How to Calibrate the Digital Tube Voltmeter
(Optional steps for the person who need a highly accurate voltage value)
1. Short press the left “ON/OFF” button to start up the digital tube voltmeter. Long press(>1s, <4 seconds)="" the="" left="" button="" to="" shut="" down="" the="" digital="" tube="" voltmeter.="">
2. Long press(>4 seconds) the left button to enter self-calibration of voltage measurement(calibration range: -0.5-0.5V, factory setting is 0.0).
“IN” indicator lights = input voltage measurement calibration starts.
Then, long press(>2 seconds) the right “Mode” button, “OUT” indicator lights = output voltage measurement calibration starts.
Tap the left / right button to reduce / rise by one unit (since the voltage value of one unit is less than 0.1V, you need to 1-5 times tap the button continuously, so that the voltmeter can change by 0.1V)
3. After calibration, long press(>2 seconds) the right “Mode” button to preserve the adjusted value(no loss with outage) and back to normal voltage display.

Specifications:
– Model: LM2596 / Digital Tube Voltmeter
– Input voltage: DC 4V – 40V
– Output Voltage: DC 1.5V – 35V (adjustable)
– Output Current: 3A (max.)
– Conversion Efficiency: 92% (max.)
– Switching Frequency : 150KHz
– Operating Temperature: -45℃ to +85℃
– Size(L x W x H): 62*35*14mm
– Weight: 21g

Package List:
3x DC-DC Buck Converter Module with LED Display

8. DZS Elec 250W DC Booster Constant Voltage Constant Current Power Converter Module DC-DC 10-40V to 10-50V 6A Adjustable Step-Up Power Supply Module CC CV Voltage Regulator Large Power Driver

DZS Elec 250W DC Booster Constant Voltage Constant Current Power Converter Module DC-DC 10-40V to 10-50V 6A Adjustable Step-Up Power Supply Module CC CV Voltage Regulator Large Power Driver

Feature

Description

Size:250W

Module Name: 250W Booster Constant Voltage Constant Current Module
Module Type: Non-isolated booster module (BOOST)
Input Voltage: DC 10V-40V
Input Current: 6A (MAX)
Static Working Current: 10mA (The higher output voltage, the higher static current)
Output Voltage: 10-50V Continuing Adjust
Output Current: 6A MAX, Please enhance heat sink if exceed 4A (The larger voltage difference between input and output, the smaller output current)
Constant Current Range: 0.2-6A
Output Power: 250W (max), suggest to leave some slack for long time work
Working Temperature: -40 to +85 degree Celsius (Please enhance heat sink for over-temperature)
Operating Frequency: 150KHz
Conversion Efficiency: 92%-96% (Efficiency is related to input, output voltage, current and voltage difference)
Input Reverse Connection Protection: YES
Mounting Type: 4PCS 3mm screw hole
Connection Mode: Lead wire output
Module Size: 70x36x13mm(LxWxH)

Output voltage/current regulation method:
1. Adjust the CV-ADJ potentiometer to set the output voltage to the desired voltage according to your battery or LED.
2. Turn CC-ADJ potentiometer clockwise for about 30 turns, set the output current to the minimum, connect the LED, and turn CC-ADJ potentiometer to the current you need. If it is used for battery charging, after the battery is fully discharged, and then connected to the output, adjust CC-ADJ potentiometer to the current you need (the more residual battery power, the lower charging current).

Tip:
Please do not use short circuit to adjust the current, otherwise it will damage the module.
The module is a booster module, the input voltage should be 2V lower at least than the output voltage.

Package Include:
1x 250W Constant Voltage and Constant Current Power Module

9. DZS Elec 5A 75W DC-DC Step-down Module Kit Constant Current Low Ripple Voltage Regulator 4-38v Input to 1.25-36v Output Adjustable Large Power Converter + Heat Sink + Brass Spacer + Nut

DZS Elec 5A 75W DC-DC Step-down Module Kit Constant Current Low Ripple Voltage Regulator 4-38v Input to 1.25-36v Output Adjustable Large Power Converter + Heat Sink + Brass Spacer + Nut

Feature

Description

Size:5A 75W

Feature:
Length: 61mm
Width: 26mm
Height: 15mm
Weight: 25g
Input Voltage: 4V-38V(38V is max)
Output Voltage: 1.25V-36V ( Used as a step down module, the input voltage muse be higher than output voltage more than 2V. )
Output Current: 5A (MAX), the output voltage can only be adjusted when the voltage is above 2V.
Output Power: 75W (MAX, Please strengthen the cooling when the output is above 3A 35W.)
Work Temperature: -45 to +85 degree centigrade
Switching Frequency: 180KHz
Transfer Efficiency: less than or equal to 96%
Short-circuit Protection: Yes (Limited current 8A)
Over-temperature Protection: Yes (Automatically shut off the output once over temperature)
Reverse Voltage Protection: NO ( Please note positive and negative electrode, or it will burn out directly. If need, please add large current tube.)
Connection Mode: Terminals or solder terminals. V-IN for input, V-OUT for output.

How to set the current and voltage:
1. Adjust the constant-voltage potentiometer, make sure the output voltage to achieve what you need.
2. Directly connect the multimeter to the output ports at 10A current, to measure the output short circuit current, and adjust constant current pontentionmeter to make sure the output current to achieve the scheduled value.

Package Including:
1pcs 5A 75W step-down power converter
1pcs Heat Sink
4pcs Brass Spacer Standoff
4pcs Nuts

Conclusion

By our suggestions above, we hope that you can found Buck Converter With Variable Output And Cooling Fan for you.Please don’t forget to share your experience by comment in this post. Thank you!

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