Best DC Power Supplies in 2020 Reviews

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Craftsman and seasoned travelers, benefit from the use of DC power supplies. The use of DC power supplies prevents the overloading and overheating of the electrical system. In addition to providing voltage protection. Selecting the best DC power supplies to grace your man cave or accompany you during international travel, is not always an easy decision. This guide will take the jolt out of shopping for DC power supplies and, help you choose the right DC power supply for your power needs. This list will get you to the finish line more quickly. This guide lists a description, and the pro’s and con’s, of 10 best DC power supplies in 2020. On your mark, get set, go!

List of Best DC Power Supplies in 2020 Reviews

10. Pyramid Desktop Bench Power Supply, AC-to-DC Power Converter

10. Pyramid Desktop Bench Power Supply

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The Pyramid Desktop Bench Power Supply, AC-to-DC Power Converter with USB charge and cigarette lighter socket, is a black compact box. It is easy to use, just plug-in to an electrical outlet to tap into a perpetual fountainhead of DC voltage. Speedy and reliable conversion of power is possible with the Pyramid Desktop Bench Power Supply and eliminates the need for additional batteries and power sources.

Pros

  • The Pyramid Desktop Bench Power Converter is turned on with a switch
  • It has a USB port with universal screw terminals, USB power is 5V/2A
  • It has a cigarette lighter that is 9 AMP with a power output of 13.8V DC
  • Converts AC to DC power
  • Compact design
  • Features an LED-backlit switch
  • The cooling fan is built-in
  • Has a power socket adapter
  • The PSU features built-in protection against overheating and overloading of short circuits
  • The unit has 12 amps of power (constant) 14 amps(surge)
  • The automatic reset feature safeguards fuses
  • Power input is 115V AC, 60Hz (270 Watt)

Cons

  • Will turn of after 15 minutes of use if operated at complete capacity
  • After the unit turns off when operated at complete capacity it will not turn back on for about 15-30 minutes
  • The manual expects use of 70% capacity or 8.4 amps

9. Extech 382280 Precision with Programmable 200 Watt Output DC Power Supply

9.Extech 382280 Precision with Programmable 200 Watt Output DC Power Supply

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This Extech 382280 DC power supply has storage and recall memory, easy to use interface and feature that allows the user to select the voltage (constant & surge).

Pros

  • Has 200 built-in test memories
  • Simple to adjust 40V/5A output
  • 2 outlets (5V/2A and 3.3V/3A)
  • 0 to 60 second easy to program overload delay timer
  • High stability with low noise
  • 200 programmable watts
  • LCD is backlit
  • The setting for the variable section can be enabled or disabled with the OPER/STBY button
  • The accuracy is great for electronics and is the best bench power supply
  • The unit has vents on the left & right to prevent overheating
  • Bi-directional current

Cons

  • A negative voltage is not possible, if you need +-15V for an op-amp this is not the best DC power supply for you
  • There is not a built-in cooling fan

8. KORAD KA3305D – Precision Variable Adjustable 30V, 5A DC Triple Linear Power Supply Digital Regulated Lab Grade

8.KORAD KA3305D - Precision Variable Adjustable 30V, 5A DC Triple Linear Power Supply Digital Regulated Lab Grade

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The KORAD KA3305D is entirely digitized and has simple to use interface. The Korad has series and parallel output modes that increase the voltage up to double or present use of the unit in a single output.

Pros

  • Has a built-in fan with internal temperature control
  • Current CC voltage & CV modes
  • Has a keyboard lock function
  • 3 output channels
  • Input voltage is AC 110-220V
  • OCP (Over Current Protection)/OVP (Over Voltage Protection) settings
  • Can adjust the power to the leads on and off without turning the whole unit on/off
  • It is easily adjustable from to 10 mV as well as 10 mA
  • Simple to combine the 2 outputs into one output in series (60V at 5A) or parallel mode (30V to 10A) on one set of leads

Cons

  • The keypad is not intuitive
  • Despite the settings, it does surpass more than 22.0 amps

7. Rigol DP832 Triple Output 195 Watt Power Supply

7.Rigol DP832 Triple Output 195 Watt Power Supply

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The Rigol DP832 Triple Output 195 Watt Power Supply is programmable using the SCPI (Standard Commands For Programmable Instruments).

Pros

  • The Rigol DP832 is an optimal choice for laboratory power supply
  • It has 3 switchable outputs (+30 V/3 A, +30 V/3 A and +5 V/3 A) and a maximum power output of 195 W
  • Remote communication is possible to PC over USB, LAN, RS232 or GPIB
  • Channel isolation
  • Best lab power supply
  • The Rigol status system records the instrument states into 3 register sets: status byte register, standard event register & questionable status register sets
  • Easy to change parameters
  • Able to set current limit & view instant voltage and current readings on all 3 channels at the same time

Cons

  • The rotary keypad is outdated
  • The unit is on the heavy side

6. TekPower Analog Display TP30SWI 30 Amp DC 13.8V Switching Power Supply with Noise Offset

6.TekPower Analog Display TP30SWI 30 Amp DC 13.8V Switching Power Supply with Noise Offset

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The TekPower has an analog display and built-in overheating and short circuit protection.

Pros

  • Has input power of 110V AC 60Hz
  • Has output of DC 13.8V, 30A(Max)
  • A knob that controls the noise
  • The ripple voltage is less than 80mVp-p at rated load
  • There is a transformer to drop AC line voltage and a rectification circuit to DC
  • Quiet fan & easy installation

Cons

  • Anderson Powerpoles on the front are only rated for 3 amps

5. UCTRONICS DC Portable Bench

5.UCTRONICS DC Portable Bench

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The Uctronics DC portable bench offers constant voltage (DC 0.6V-30V) and constant current (0A-4A) stabilized regulator module.

Pros

  • Has a clear LCD digital display
  • 35 W DC of output power
  • Alter the output by turning a knob
  • 88% conversion efficiency
  • Has OVP (over voltage protection) built-in
  • Has built-in OVC (over current protection)
  • Supports anti-reverse protection
  • Input voltage is DC 5V-30.0V
  • Output voltage is DC 0.6V-30.0V
  • Output current is 0-4.0A
  • The working frequency is 180KHZ

Cons

  • Difficulties setting the voltage
  • Mounting tabs are easily destructible

4. Nice-Power DC Power Supply

4. Nice-Power DC Power Supply

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The Nice-Power DC supply has a digital LED display with a leads power cord. The power is easily operated by a switch.

Pros

  • It is suitable for industrial use and lab use
  • Double potentiometer for accurate adjustments
  • 30V DC bench power supply
  • Easy to make adjustments
  • Simple to set up
  • Allows a vast range of voltages up to 60v and 5A
  • Includes 2 sets of terminals
  • Input Voltage is AC 110V, 50/60Hz
  • Output Voltage is 0 ~ 30V
  • Output Current is 0 ~ 10A
  • USB Output
  • Voltage Resolution is 10/100mV
  • Current Resolution is 1/10mA
  • Power Effect is CV≤1%+10mV
  • Effect of Load is CV≤1%+10mV
  • Ripple and Noise is Vp-p≤1%

Cons

  • Alligator clips are easily destructible

3. Longwei DC Power Supply Variable

3.Longwei DC Power Supply Variable

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Longwei DC power supply variable is easy to adjust.It is suited for spectrometer and lab equipment repair.

Pros

  • The Longwei DC supply variable is compact & intuitive
  • It features an LED digital display
  • Has a built-in temperature management fan
  • Easily supports LED products & DC fans testing
  • Has Over Voltage Protection(OVP), Over Current Proection (OCP)
  • Supports electronic & automatic testing equipment
  • FCC & CE certified and is one of the top best dc power supply
  • Output current is 0-5 A
  • Input power is AC 110V/ 220V with switch selection
  • Has overpower protection (OPP)
  • Is compact and lightweight
  • Voltage control pot is multi-turn
  • The main board is set parallel to the case so gets plenty of air flow
  • The internal fan is quiet
  • The unit is portable

Cons

  • Any kind of a load strains the power supply and it pulls it down to -0 amps

2. Tekpower TP3005T Variable Linear DC Power Supply, 0-30V @ 0-5A with Alligator Test Leads

2.Tekpower TP3005T Variable Linear DC Power Supply, 0-30V @ 0-5A with Alligator Test Leads

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The Tekpower TP3005T has variable linear DC power supply and transforms the AC power directly into a DC voltage without the aid of a transformer.

Pros

  • Has a linear power supply
  • The unit is not noisy
  • The unit is wear and tear resistant
  • Has switch-mode power
  • The best bench power supply
  • Digitized DC power supply has maximum output voltage of 30 volts and current to 5 amps
  • Rotary switches set up the voltage and current
  • The LED Display is backlit and has a 0.1V and 0.01A resolution
  • Intelligent automated cooling fan
  • Output DC voltage is 0.0V – 30.0V
  • Output DC current is 0.00V – 5.00 A
  • Input voltage: 110V/AC, 60Hz
  • Load regulation is CV greater than 0.01% + 3mV, CC greater than 0.02% + 3mA
  • Ripple and noises: CV greater than 1 mV rms, CC greater than 3 mA, rms
  • Protection is covered by a high current intelligent internal cooling fan.
  • Operating Temperature is 0 – 102 F (0 – 40 C), Relative Humidity must surpass 80%
  • LCD Accuracy is within +/- 2.5%

Cons

  • Complaints of short circuiting

1. T​acklife DC Power Supply

1.Tacklife DC Power Supply

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The Tacklife DC power supply variable has a switch off and on power function. The 4 Digital LCD Display makes interface easy to read.

Pros

  • Has built-in overload and short circuit protection
  • Well suited for laboratories, schools,electrical maintenance, suitable for lab & industrial use
  • Output voltage & current are continuously adjustable
  • Input voltage is 220 V/110V
  • The voltage stability is less than 0.01%+3mV Load stability is less than 0.01%+5mV Ripple & noise less than 1.0mVrms Temperature coefficient: less than 300PPM/0C
  • Has reverse polarity and high temperature protection built-in
  • Comes with 110V/115CM Alligator Leads
  • Has a built-in automatic fan
  • mA resolution & fixed output
  • Has built-in anti-interference
  • Encoded-controlled fine & coarse adjustment knob make the adjustments a cinch
  • The best lab power supply
  • Has a 4 digit LED display works even in dim light
  • Easy installation
  • 1 year warranty
  • The unit is only a little over 3 pounds, incredibly lightweight

Cons

  • Not for use in humid locations
  • Display & controls work but not the output voltage
  • Made of inferior materials
  • Complaints of the fan not working
  • Unable to handle more than 1 A

Buying Guide

Finally, you have read the descriptions and the pros and cons of the top DC power supplies of 2020! Congratulations are in order. You have the knowledge to make a well-informed decision to purchase the correct DC power supply. Whether you are journeying abroad or coding in your home office; you want to select the DC power supply that was created for your intended purpose.

The sole purpose of DC power supplies prevents the overloading and overheating of the host electrical system. In addition to providing voltage protection and short circuit protection. This guide hopefully took the shock out of searching for DC power supplies and, will enable you to choose the right DC power supply for your power needs. You will be the proud owner of an impressive, functional and highly intuitive DC power supply and the envy of all your friends; if you make this list your go-to guide!

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