The 10 best voltage converter variable for 2019

Finding the best voltage converter variable suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.

Best voltage converter variable

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DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage & Current DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage & Current
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Youngneer LM2596 DC-DC Buck Converter Step Down Adjustable Power Supply Module Input 3V -40V to Output 1.5V -35V Variable Voltage Regulator Youngneer LM2596 DC-DC Buck Converter Step Down Adjustable Power Supply Module Input 3V -40V to Output 1.5V -35V Variable Voltage Regulator
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KNACRO DC-DC Buck Boost Converter 5V-25V to 0.5-25V 2A High Efficiency Voltage Regulator 5V 12V Variable Volt Power Supply Stabilizers with Blue LED Voltmeter for Car Battery Fan KNACRO DC-DC Buck Boost Converter 5V-25V to 0.5-25V 2A High Efficiency Voltage Regulator 5V 12V Variable Volt Power Supply Stabilizers with Blue LED Voltmeter for Car Battery Fan
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DROK LM2596 Numerical Control Voltage Converter Board DC 5-32V 24v 32v to Adjustable 0-30V 12 v 5 v Switching Regulator Module 1.5A Volt Transformer with Red LED Voltage Tester DROK LM2596 Numerical Control Voltage Converter Board DC 5-32V 24v 32v to Adjustable 0-30V 12 v 5 v Switching Regulator Module 1.5A Volt Transformer with Red LED Voltage Tester
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Anesty Auto Transformer AC Variable Voltage Converter Transformer Regulator 2KVA 0-130V (L) Anesty Auto Transformer AC Variable Voltage Converter Transformer Regulator 2KVA 0-130V (L)
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Beleeb 20 Amp AC Variable Voltage Regulator Transformer, 2000VA Max, 0~130 Volt Output Beleeb 20 Amp AC Variable Voltage Regulator Transformer, 2000VA Max, 0~130 Volt Output
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GOPHERT CPS-3205II 0-32V 0-5A Portable Adjustable AC to DC Variable Switching Power Supply AC DC converter 110V/220V switchable Great for provide constant voltage or current supply. GOPHERT CPS-3205II 0-32V 0-5A Portable Adjustable AC to DC Variable Switching Power Supply AC DC converter 110V/220V switchable Great for provide constant voltage or current supply.
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Anmbest Constant Current Constant Voltage Buck Boost Converter Module DC 5.5-30V to DC 0.5-30V Adjustable CC CV Step UP Down Voltage Regulator 4A 50W Power Supply Module with LCD Display Anmbest Constant Current Constant Voltage Buck Boost Converter Module DC 5.5-30V to DC 0.5-30V Adjustable CC CV Step UP Down Voltage Regulator 4A 50W Power Supply Module with LCD Display
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Onyehn DC-DC Adjustable Buck Voltage Converter Step Down Voltage Reducer Regulator Power Module 3A 5-23V to 0-16.5V Dual Volt Amp LCD Display with Transparent Shell Onyehn DC-DC Adjustable Buck Voltage Converter Step Down Voltage Reducer Regulator Power Module 3A 5-23V to 0-16.5V Dual Volt Amp LCD Display with Transparent Shell
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Icstation DC to DC Voltage Regulator Step Down Up Power Supply Converter Module 3.5V-28V to 1.25V-26V 3A LM2596 XL6009 Icstation DC to DC Voltage Regulator Step Down Up Power Supply Converter Module 3.5V-28V to 1.25V-26V 3A LM2596 XL6009
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Related posts:

1. DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage & Current

Feature

DROK DC converter is the combination of analog integration and digital control. Its input voltage range is DC 10-90V, adjustable output voltage range is 0-80.00V, its adjustable output current range is 0-5.100A.
Date Store: this electricity converter owns power-down stored function and can store 10 groups preset value, besides, it can quickly extract two groups stored value.
Color LCD Display: our voltage stabilizer is equipped with high quality LCD monitor. Through the LCD screen, it is convenient for you to check the preset voltage, input voltage, output voltage, the preset current, output current, output power, etc.
Safe Protection: the volt transformer is designed with over-voltage, over-current, over-power protection function, users can set the corresponding value as your requirement.
Note: Please ensure the input voltage is more than 1.1 times of the output voltage; please note heat dissipation when high current operation.

Description

Product Description:
The numerical control power supply module integrates analog integration and numerical control in one. The module owns adjustable output voltage range 0-80.00V, stepping 0.01V; adjustable output current range 0-5.100A, stepping 0.001A. The module has power-down preset value storage function, which can store 10 groups preset value and can quickly extract two groups stored value. Coming with the function of voltmeter and ammeter, it is very convenient to check the preset voltage/current, the input/output voltage/current, output power etc through the bright and clear LCD display. In the output state prompt area, it's easy to check whether output turns on or not, whether the output is in the state of constant voltage or constant current, whether the output is normal or not, whether the key is locked or not, and the data groups that is being used at present. In the data setting interface, you can adjust the value of over-voltage, over-current, over-power, data set and LCD brightness. Small size, advanced function, good visual effect, high operability and high precision, this power supply can be used independently or be inset into device, wide application.

Technical Parameters:
Input voltage range: DC 10-90V
Output voltage range: DC 0-80.00V
Output current range: 0-5.100A
Output power range: 0-408W
Output voltage resolution: 0.01V
Output current resolution: 0.001A
Output voltage measurement accuracy: (0.5%+2digits)
Output current measurement accuracy: (0.8%+3digits)
Product dimension: 79mm x 43mm x 54mm
Open size: 71mm x 39mm

Package Including:
1x Voltage Buck Converter Panel

2. Youngneer LM2596 DC-DC Buck Converter Step Down Adjustable Power Supply Module Input 3V -40V to Output 1.5V -35V Variable Voltage Regulator

Feature

Input Voltage- 3.0V ~ 40V (IN+ : Input Positive; IN-:Input Negative); Please set input voltage 1.5 V higher than the output voltage, no boost.
Output Volage- DC 1.5 V ~ 35 V (OUT+: Output Positive OUT-: Output Negative) voltage is continuously adjustable and the maximum output current is 3 A
High Performance- Use a dedicated benchmark IC, and high-precision current sensing resistor, can make more stable constant current.
Key Features- All lm2596 dc-dc buck converters use SANYO solid-state capacitors, 36 u thickening circuit boards, high-Q inductance with LED indicator output
Wide Application- These lm2596 buck converters can be widely used for DIY mobile power, monitor power supply, power buggies, camera power supply, car power, communications equipment supply, various right size and weight for demanding applications.

Description

Specification:
Type: Step Down Adjustable Converter
Module property:Non-isolation buck
Rectification mode:Non-synchronous rectifier
Input Voltage: 3.0V~40V (IN+ : Input Positive; IN-:Input Negative)
Output Voltage: 1.5V~35V (OUT+: Output Positive OUT-: Output Negative)
Output Current: Rated current: 2A, Maximum: 3A
Conversion Efficiency: 92% (maximum)
Switching Frequency: 150 kHz
Load regulation:0.5%
Voltage regulation: 2.5%
Work temperature:-40 - +85
Dimension:43mm*21mm*14mm(L*W*G)
Package: 8pcs LM2596 DC-DC Buck Converter

Main Features:

How to Use:
Connect to the power supply (3-40V), using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed, spinning clockwise to step voltage up and spinning counterclockwise to step voltage down.
(Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts changing, 1 circle means +/- 1V).

Wide Application:
Simple High-Efficiency Step-Down (Buck) Regulator
Efficient Pre-Regulator for Linear Regulators
On-Card Switching Regulators
Positive to Negative Converter (Buck-Boost)
Negative Step-Up Converters
Power Supply for Battery Chargers

Attention Please:
Please keep output voltage under 2.5A or output power under 10W, a heat sink is required for long time working.
In order to keep stable output, the input voltage must be 1.5 V higher than the output voltage, don't boost.

100% Satisfaction Guarantee:
12-Month Warranty; No satisfied, Free reason for return; Quality problem, please contact us, we will resend your FREE Replacements or make you FULL Refund.

3. KNACRO DC-DC Buck Boost Converter 5V-25V to 0.5-25V 2A High Efficiency Voltage Regulator 5V 12V Variable Volt Power Supply Stabilizers with Blue LED Voltmeter for Car Battery Fan

Feature

The output voltage can be higher or lower than the input voltage, turn the small screw on top of the pot to regulate the output.
With a voltmeter, press S1 to switch among three working mode: input voltage mode, output voltage mode and Alternate mode.
The starting state can be set freely by long pressing S1, three memory mode: [0] [1] [2] mean default display IN or OUT or IN/OUT alternate voltage.
On the right side is another momentary switch that is for turning the output on and off, you don't have to disconnect it to turn off whatever you have connected, more convenient to control the output.
Adopted high-power MOS tube to protect the circuit in case of connecting reversely, improve efficiency and reliability; the workmanship is excellent.

Description

Input voltage: DC 5.0-25V
Output voltage: DC 0.5V-25V (adjustable)
Continuous Output Current: 2A (max)
Continuous Input Current: 2A (max)
Input / Output Power: 25W (max)
Display color: Blue
Dimensions: 47 * 41 * 16mm (L * W * H)

Features: Input and output voltage can display alternately
The starting state can be set freely.
On the right side is a momentary switch that is for turning the output on and off, you don't have to disconnect it to turn off whatever you have connected, it is more convenient to control the output.
This module have the big power MOS to protect the circuit in case of connecting reversely, which can improve the efficiency and reliability.

Working Mode:
Input voltage mode: default display input voltage, display as ".", LED indicator ON, the output is off.
Output voltage mode: Press S1 switch to output voltage mode, display ".", LED indicator off, if turn off the output, display "OFF".
Alternate mode: Press S1 key again, display input/output voltage alternately in 3 seconds, press S1 again switch to "input voltage mode".

Memory Mode:
Long press S1key for 3 seconds, the module automatically remembers the current work status as the default power-on state.
[0]means boot default display input voltage
[1]means boot default display output voltage
[2]means boot default display input/output voltage alternately

Package Includes:
1x DC Boost-buck Converter

4. DROK LM2596 Numerical Control Voltage Converter Board DC 5-32V 24v 32v to Adjustable 0-30V 12 v 5 v Switching Regulator Module 1.5A Volt Transformer with Red LED Voltage Tester

Feature

DROK buck converter input voltage range is DC 5V-32V, output voltage range is DC 0-30V, can step 32v 24v 12v down to 5v, or convert 24v to 12v; max output current is 1.5A, max output power is 30W.
On/off is the output Voltage control button when connect the power supply, the Default option is to turn on the output Voltage press the button will turn off the output Voltage then press it again can turn on the output Voltage again, followed by recycling; the two buttons named in and out (which are on the left of the digital display) can switch between current input Voltage and output Voltage.
Set Key is to set the output Voltage, press set shortly, the Decimal place of output Voltage flashes; press the two buttons named + and - to increase or decrease the value.
The dc-dc voltage regulator board is low power consumption, and has terminal and retain the wire bonding wiring point.
Note: please make sure that you use this module within its working range; do NOT output short-circuit or charge the battery, otherwise the board would burn.

Description

Parameters: Input voltage: 5-32.0V (we suggest you to leave margin) Output voltage: 0-30.0V Output current: 1.5A Max (please enhance cooling when > 1.5A) Output power: 30W Max Output voltage preset resolution: 0.1V Voltage testing accuracy: +/-(1%+2 digits) Wiring connection: IN+: connect IN+ to your Input + IN-: connect IN- to your Input - Out+: connect OUT+ to your output + Out-: connect OUT- to your output - How to use: 1. ON/OFF is the output voltage control button. when connect the power supply, the default option is to turn on the output voltage. press the button will turn off the output voltage. then press it again can turn on the output voltage again, followed by recycling. 2. The two buttons named IN & OUT (which are on the left of the digital display) can switch between current input voltage and output voltage. 3. SET key is to set the output voltage. Press SET shortly, the decimal place of output voltage flashes. press the two buttons named + & - to increase or decrease the value, thereby setting the decimal place of output voltage. after select the required value of decimal place, press SET again and the integral place of output voltage starts flashing. with the same two buttons can set the required value by using the same method. when the required value is set, press the SET to quit setting. if you don't press the SET key, the setting will be automatically quitted after 6 seconds and the item will store the current setting value. Note: 1. Please make sure that you use this module within its working range; do not output short-circuit or charge the battery, otherwise the board would burn. 2. When you set the parameter, please use the module after you make sure output voltage is stable to avoid any possible damage.

5. Anesty Auto Transformer AC Variable Voltage Converter Transformer Regulator 2KVA 0-130V (L)

6. Beleeb 20 Amp AC Variable Voltage Regulator Transformer, 2000VA Max, 0~130 Volt Output

Feature

Material:Iron (shell),Copper coil, Adjustable transformer, with Output Volt Meter.
Input: 110/120 volt AC, Output: 0~130 volt AC, a variable AC input to a transformer input DC bridge rectifier to produce a variable DC output
VA: 2000VA., 20 Amp. Max (surge) , Note that most device have surge (when first turn on) much higher than operating amp rating.
A rating of 2000VA means that at 100volt, the unit can sustain at maximum 20amp. If at 120 volt the unit can sustain at 16.6Vamp
If you're planning on using this as an "industrial" or bench-top supply with heavy loads, I'd recommend examining the brushes and adjusting the spring pressure on the windings. This can improve performance by reducing brush-contact sparking. Otherwise, this device is ready to work right out of the box.

Description

If you have an unlimited budget or are running an official lab, please buy a dedicated lab-grade regulator or regulated high-voltage power supply.

If you're using this at home for hobbyist use, I definitely recommend!

If you're planning on using this as an "industrial" or bench-top supply with heavy loads, I'd recommend examining the brushes and adjusting the spring pressure on the windings. This can improve performance by reducing brush-contact sparking. Otherwise, this device is ready to work right out of the box.

This AC regulator is to power equipment for testing with on oscilloscope. Without isolation, oscilloscope probing can be dangerous, as the BNC connector sheaths are shorted to mains earth.

How to choose a regulator?
It is very simple, please select the corresponding specification voltage regulator according to the load current.

7. GOPHERT CPS-3205II 0-32V 0-5A Portable Adjustable AC to DC Variable Switching Power Supply AC DC converter 110V/220V switchable Great for provide constant voltage or current supply.

Feature

Top performance cost ratio, 110VAC / 220VAC power input switchable(Before plugging into power, please set the voltage switch to right place:110 or 220V)
0-32V 0-5A output, Can be used as a constant voltage or as a constant current supply. Microprocessor(MCU) control allow for high performance and precision
Four digital volt meter and three digital current meter
Up to 88% High efficiency, High precision and stability, a must-have for laboratory, school, production lines and electronic repair work use
Intelligent protection: Tracking OVP, Tracking OCP, OTP, Output short circuit protection

Description

High power density, smallest and compact
Aluminum shell, lower EMI
Microprocessor(MCU) control
Using Encoder to set the voltage and current
Four digital volt meter and three digital current meter
Current meter displays mA automatically when current belows 1A
High efficiency, up to 88%
Specification
Operation Voltage Range 110/220V switchable
Operation Frequency Range 45 - 65HZ
Output Voltage Range 0 - 32V
Output Current Range 0 - 5A
Efficiency (220Vac/full load) 87%
Full Load Input Current(220Vac) 1.4A
No Load Input Current(220Vac) 80mA
Volt Meter Accuracy 0.3% + 1 digits
Current Meter Accuracy 0.3% + 2 digit

Constant Voltage

Load Regulation (0-100%) 30mV
Line Regulation(198-264Vac) 10mV
Ripple & Noise (Peak-Peak) 30mV
Ripple & Noise (r.m.s) 3mV
Set Accuracy 0.3% + 10mV
Transient Response Time (50%-100% rated Load) 1.0ms

Constant Current

Load Regulation(90%-10% Rated Voltage) 50mA
Line Regulation (198-264Vac) 20mA
Ripple & Noise (Peak-Peak) 30mAp-p
Set Accuracy 0.3% + 20mA
Size(width height depth) 12055168mm
Net Weight 0.85KG

8. Anmbest Constant Current Constant Voltage Buck Boost Converter Module DC 5.5-30V to DC 0.5-30V Adjustable CC CV Step UP Down Voltage Regulator 4A 50W Power Supply Module with LCD Display

Feature

Input voltage: 5.5-30V(input voltage 5V, you can normally achieve buck-boost, but the voltage and current meter values are not accurate; less than 4.7V, under voltage protection); Output voltage: 0.5-30V; Output current:Max 4A; Output power:Max 50w; Voltage display resolution: 0.05V; Current display resolution: 0.005A; Working frequency: 180KHZ.
LCD Display: the voltage regulator module is designed with LCD, can display input and output voltage, output current and output power; voltage display resolution is 0.05V, current display resolution is 0.005A.
Module has IN / OUT, ON / OFF two buttons: IN / OUT button to switch the input voltage and output voltage display, long press to switch the output current output power display; ON / OFF button control output ON or OFF, long press Set power on default output status is ON or OFF.
CC is the current setting potentiometer, clockwise rotation, can increase the set current, when the load current reaches the set current, enter the constant current state, CC constant current indicator (red) lights up; the right CV is the voltage setting Potentiometer, clockwise rotation, can increase the output voltage. ON indicator is the output status indicator, when the output voltage is on, otherwise off.
Application: 1.Used as an ordinary buck-boost module with over-current protection capability; 2.Used as a battery charger; 3.Used as LED constant current driver module.

Description

It is a type of DC to DC converter and it has a magnitude of output voltage. It may be more or less than equal to the input voltage magnitude. The buck boost converter is equal to the fly back circuit and single inductor is used in the place of the transformer. There are two types of converters in the buck boost converter that are buck converter and the other one is boost converter. These converters can produce the range of output voltage than the input voltage. The input voltages are step up/down to some level of more than or less than the input voltage.
Technical Specifications:
Input voltage: 5.5-30V
Output voltage: 0.5-30V
Output current: long-term stable work in 3A, max 4A
Output power: 35W natural cooling, heat dissipation to enhance 50W
Voltage display resolution: 0.05V
Current display resolution: 0.005A
Conversion efficiency: about 88%
Input reverse protection: Yes
Output anti-intrusion: Yes
Short circuit protection: yes
Working frequency: 180KHZ
Size: 66 * 48 * 21mm
How to use:
Used as an ordinary buck-boost module with over-current protection capability
1 Adjust the CV constant voltage potentiometer so that the output voltage reaches the voltage you want.
2 Measure the output short-circuit current with 10A current meter (connect the two test leads directly to the output end), and adjust the CC constant current potentiometer to make the output current reach the preset over-current protection value. (For example, if the current value displayed by the multimeter is 2A, the maximum current will only reach 2A when you use the module. When the current reaches 2A, the red constant voltage and constant current LED is on, otherwise the LED is off)
Caution: When using in this state, there will be a voltage drop of 0 ~ 0.2V due to the current sampling resistor at the output. At the same time, the input and output leads will have a certain linear voltage drop.

9. Onyehn DC-DC Adjustable Buck Voltage Converter Step Down Voltage Reducer Regulator Power Module 3A 5-23V to 0-16.5V Dual Volt Amp LCD Display with Transparent Shell

Feature

Using STN liquid crystal display screen, Voltage and Current can be displayed simultaneously, blue background and white character, wide angle and wide field of view.
Using button adjustable voltage, left button to reduce the voltage, the right button to increasing voltage. press button one time can adjust 0.04V voltage, press and hold more than 1 second to quickly adjust voltage.
Digital DC-DC step down power supply module with terminal connector port easy to connect with other devices.
Dual voltage and currend LCD display, easier to recognise the output parameter.
Can be used as a normal step down power supply, battery charger and LED lgiht constant current drive module.

Description

Calibration Method:
Power-off status, press and hold the left button access the power, the display starts flashing, release the left button.
Using multimeter measured the output terminal voltage, if the measured voltage is greater than 5V, press the left button reduced the voltage to 5V;
If the voltage is less than 5V, press the right button to increase the voltage to 5V.
When the LCD display voltage of 5V(sometimes it shows 4.99V), turn off the power, the calibration is complete.

Performance:
Input Voltage: 5~23V, Max 23V, recommended to use within 20V.
Input voltage must be higher than the output voltage 1V above.
Please check the input positive and negative polarity before connecting, reverse may damage the components.

Output Voltage: 0~16.5V adjustable (It can save the last set voltage automatically).
Peak Current: 3A (Recommended use in 2A, accuracy of 1%, the minimum display 0.01A, less than 10mA will not be displayed.)
Conversion Efficiency: 95%
Load Regulation S(I) 0.8%
Voltage Regulation S(U) 0.8%

Packing List:
1 x DC-DC Adjustable Step-down Power Supply Module (assembled)
1 x Transparent Shell

10. Icstation DC to DC Voltage Regulator Step Down Up Power Supply Converter Module 3.5V-28V to 1.25V-26V 3A LM2596 XL6009

Feature

Icstation DC Step Up and Down Power Supply Module enable to support step up and step down voltage, the voltage regulator module equiped with high quality XL6009E and LM2596S buck and boost converter chip.
Rated parameters: Input voltage: DC 3.5V to 28V, Input current: 1A; Output voltage: DC 1.25V to 26V, Output current: 1A.
Absolute Maximum Rating: Input voltage: DC 32V, Input current: 3A; Output voltage: DC 32V, Output current: 3A.
Module size: 53 x 38 x 15 mm / 2.09 x 1.50 x 0.59 inch (L*W*H).
Fulfilled by Amazon will take 2-4 days delivery time and fulfilled by merchant will take 7-17 days delivery time usually.

Description

Icstation DC voltage regulator module is equipped with high quality XL6009E and LM2596S converter chip which enable to support step up and step down voltage, regulating function ideal for DIY power supply.

Specifications:

(I) Rated parameters:
Input voltage: DC 3.5V to 28V, Input current: 1A
Output voltage: DC 1.25V to 26V, Output current: 1A.

(II) Absolute Maximum Rating:
Input voltage: DC 32V, Input current: 3A
Output voltage: DC 32V, Output current: 3A

Module Size: 53 x 38 x 15 mm / 2.09 x 1.50 x 0.59 inch (L*W*H)

Package Included: 1X DC Step Up and Down Power Supply Module

Steps: Connect to power source, adjust the swirl button on the blue potentiometer and monitor voltage with multimeter to get the needed voltage.

Conclusion

All above are our suggestions for voltage converter variable. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using voltage converter variable with us by comment in this post. Thank you!

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