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DC Power Supply, Dr.meter 30V 5A Adjustable Switching Regulated DC Bench Linear Power Supply with Alligator Leads and 3 LED Digital Display, Variable Power Supply with US 3-Prong Cable

4.4 4.4 out of 5 stars 729 ratings

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Brand Dr.meter
Color white, Black
Item Weight 12.1 Pounds
Output Current 5 Amps
Output Voltage 30 Volts

About this item

  • ★【DC regulated power supply】-30 Volts and 0-5 Amp outpouts with alligator clip leads, 3 LED digital display.
  • ★【Auto Conversion】Current can be converted from ''A'' to ''mA'' though The Movement of Decimal Point. It can be operated as constant current or constant voltage source.
  • ★【Multiple Protections】Upgrade Elastic Handle, easy to carry, Automatic cooling fan, exhaust fan protection, overload and short circuit protection to prolong service life of product.
  • ★【High Stability】Voltage stability: <0.01%+3mV, Current stability: < 0.2%+3mA, Ripple & noise :< 3mArms
  • ★【Wide Application】Suitable for the laboratory, electronic, communication equipments maintenance, products line, scientific research and teaching units

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 14.8 x 8.74 x 7.32 inches; 12.1 Pounds
  • Item model number ‏ : ‎ FBA_PS-305DM
  • Department ‏ : ‎ Unisex
  • Date First Available ‏ : ‎ August 31, 2012
  • ASIN ‏ : ‎ B00O8DJ8QC
  • Customer Reviews:
    4.4 4.4 out of 5 stars 729 ratings

From the brand


Product Description

1 dc power supply 1
30V/5A DC Power Supply 30V/10A DC Power Supply -Black 30V/10A DC Power Supply -White
Customer Reviews
4.4 out of 5 stars
729
4.4 out of 5 stars
641
4.4 out of 5 stars
641
Model PS305DM PS-3010DF PS-3010DF
Output Mode Single Output Single Output with USB Interface Single Output with USB Interface
Output DC Current 0-5A 0-10A 0-10A
Output Voltage 0-30V 0-30V 0-30V
Terminal 3 terminals 3 terminals 3 terminals
Short Circuit Protection
Overload Protection
Display Reading Accuracy +/-1% for voltage; +/-2% for current +/-1% for voltage; +/-2% for current +/-1% for voltage; +/-2% for current
1

Specific Features

1

2

3

Upgrade Elastic Handle, Easy to Carry

Without Turning off the Power, ''STOP/OUT'' Button Supports Interruption of The Output

Auto Conversion of ''A'' and ''mA'' though The Movement of Decimal Point

Product Details

5

dc power supply

7

dc power supply

DC Power Supply

1. Constant Voltage and Current, Continuously Adjusted

2. Specialized designed for laboratory, school and production line.

3 LED Digital Display

Take a glimpse of the screen, then you can easily know the current, voltage, and power via precise 3-digit LED display with 00.1V and 0.01A accuracy.

Side Cooling Design

The side vents correspond to the rear fans to convect the air, so there is no effect of the use and lifetime of this power supply due to excessive temperature during working.

Exhaust Fan Protection

Exhaust fan has low noise, does not interfere with work, and safer with fuses.

9

Dr.meter PS-305DM

power supply is a kind of continuously adjustable linear DC voltage regulator power supply with high stability, high reliability and low noise. Its output voltage and current can be continuously adjusted. Also it can be both as constant voltage and constant current dc power supply. Its constant voltage and current can be auto-conversion. This low cost and universal power supply can be used in many different areas, from production lines to school use.

Feature:

1. Single output, single phase

2. Output constant current

3. 3LED voltage and current display

4. mA and A converted display which controlled by a button.

5. Constant voltage and current operation model. C.V and C.C convert automatically

6. Current limitation protection

7. Good quality, cost-effective

Looking for specific info?

Customer reviews

4.4 out of 5 stars
4.4 out of 5
729 global ratings

Customers say

Customers like the performance, value, and ease of use of the power supply. For example, they mention it works brilliantly, is good value for money, and is easy to use and adjust. Customers are also happy with accuracy, and sturdiness. That said, opinions are mixed on quality, adjustability, and noise.

AI-generated from the text of customer reviews

125 customers mention103 positive22 negative

Customers like the performance of the power supply. For example, they say it works brilliantly, is impressed, and works well for less precise loads. That said, they mention that it consistently runs without problems, the knobs and display work, and is useful when charging more than one battery or testing more than once. Overall, customers find it to be a reliable choice for various applications.

"...and multiple protection features make it a reliable choice for various applications...." Read more

"...PROS: does its job, accurate readings, solid build. CONS: loud fan, heavy (can be a good quality)." Read more

"...So far it has performed well for my applications in testing of 5v-20v circuits, as well as, for electroplating activities...." Read more

"...running it for days at a time, it's been very reliable and exceed my expectations, very quiet power, these days I have it powering a emotiva xps 1..." Read more

59 customers mention48 positive11 negative

Customers like the value of the power supply. They mention that it works well, is cheap, and reliable. Some say that it's a wonderful unit for their needs.

"...It's a versatile and affordable tool that's quickly become an essential part of my electronics workbench." Read more

"I like the quality from this device, it feels like it is worth 2x the price. Checking it with my multimeter, it's very accurate as well...." Read more

"...Incredible for the money and best bang for your buck and only 60 bucks, why go for anything else, usually things at this price lie and over announce..." Read more

"This is a good solid bench power supply at an excellent price. I bought two so I can stack them for use as a dual rail supply...." Read more

45 customers mention34 positive11 negative

Customers find the power supply easy to use. They mention the controls are easy to operate, and the manual is clear. They say it's good for quick testing and experimenting at home, and that it has up to 5A settings.

"...of voltage (up to 30V) and current (up to 5A) settings, it's easy to fine-tune and control the power output to match the needs of your projects...." Read more

"...The front panel is easy to use and all controls are logically placed...." Read more

"...I love the course and fine settings - makes it very easy to dial in voltage levels...." Read more

"...The manual is very brief and poorly translated, but there isn't much to it anyway...." Read more

30 customers mention27 positive3 negative

Customers are satisfied with the accuracy of the power supply. They mention that the meter readings are accurate, and the power works great. The protection works great, and provides highly accurate output. The voltage and current readouts are also accurate, with less than 1% error. Overall, customers are happy with their purchase and recommend it to others.

"...feature, offering real-time feedback on voltage and current, ensuring accuracy and safety...." Read more

"...Checking it with my multimeter, it's very accurate as well. I really have no complaints with this, other than the always-on fan which is audible...." Read more

"...The output readings are consistently accurate when tested...." Read more

"...is a very good power supply for the money very tight voltage regulation very accurate current output and they definitely did make improvements over..." Read more

23 customers mention23 positive0 negative

Customers are satisfied with the sturdiness of the power supply. They mention that it is reasonably stable over time, solid, and dependable. The controls are sturdy, well-damped, and the fan is not too noisy. The transformer model has held up well, and it has been steady as a rock. The power supply is easy to adjust and has a sturdy handle on the top that makes it very portable.

"...and current setting even running it for days at a time, it's been very reliable and exceed my expectations, very quiet power, these days I have it..." Read more

"...Finally, the voltage and amperage settings remain stable during use which indicates to me to be from a good design...." Read more

"...It's very sturdy and easy to use. Besides a power button, It has a button to engage/disengage output of voltage to the leads...." Read more

"...The meters are accurate and it can perform as a constant voltage or constant current source because the voltage current setpoints are independently..." Read more

137 customers mention88 positive49 negative

Customers are mixed about the quality of the power supply. Some mention it's a well-made product, while others say that the constantly running fan is annoying and blew out the power source instantly. The cooling fan is always on and there is a significant hum when it' s on. The screw terminals are weak and flimsy, and the product bends quickly.

"...The sturdy construction and multiple protection features make it a reliable choice for various applications...." Read more

"...For me, I enjoy this as it feels more premium. However, if you're going to be moving it a lot, maybe consider something else...." Read more

"...The constantly running fan, although audible, doesn't seem to be as annoying as other reviews have stated...." Read more

"...pictures of the inside despite this stuff this is a good beginner power supply however I do advise anybody who reads this to try to get in there and..." Read more

43 customers mention25 positive18 negative

Customers are mixed about the adjustability of the power supply. Some mention that it's nice that you can adjust both voltage and current to keep the voltage from spiking, it'll be perfect for beginner/intermediate circuitry, and the current limit is separate adjustable. However, others say that they were unable to adjust the voltage, the exact voltage adjustment is a little erratic, and you can't set the voltage when the output is off.

"...With a wide range of voltage (up to 30V) and current (up to 5A) settings, it's easy to fine-tune and control the power output to match the needs of..." Read more

"...you have the device on but disengaged from output, it the display panel reads 0 volts...." Read more

"...The fine adjustment knob comes in handy for ensuring that you delivering a precise amount of voltage/amps...." Read more

"...This is a *affordable linear power supply* with adjustable bipolar output. I really hope it lasts...." Read more

32 customers mention13 positive19 negative

Customers are mixed about the noise of the power supply. Some mention that the fan is not too noisy, while others say that it makes small clicking sounds when switching from current to voltage.

"...PROS: does its job, accurate readings, solid build. CONS: loud fan, heavy (can be a good quality)." Read more

"...at a time, it's been very reliable and exceed my expectations, very quiet power, these days I have it powering a emotiva xps 1 gen 2 phonostage for..." Read more

"...The first one I purchased starts up the fan quickly and is a bit loud...." Read more

"...A little large for the application but blessedly quiet.Exact voltage adjustment is a little erratic owing to time lags I guess...." Read more

perfect other then a few minor details "read again for 3 year update"
4 Stars
perfect other then a few minor details "read again for 3 year update"
This is a very good power supply for the money very tight voltage regulation very accurate current output and they definitely did make improvements over the first generation of this particular power supply a few things prevented it from being a100% ultimate Steal the Bridge rectifier that's bolted to the heatsink where the mosfets are has absolutely no thermal paste on the back of it which will hinder its thermal transfer, ill be most likely putting a decent amount of artic siler mx 4 non electrically conductive thermal paste on the back of it to help with heat transfer the mosfets on the other hand have plenty of thermal paste on their heat spreaders and a nice Mica insulator in between them, other issue is the voltage regulators and mosfets on the board in the to-220 packages have no heat sinks on them which they should all have their own heatsink for heat dissapation the power Inlet wires going from the IEC power connector to the main board or to the Transformer are a little too thin for my liking as well as a Transformers secondary wiring I believe thats at the bare minimum for safety if they were to go with 16 gauge for all that that would be perfect instead of 20gauge or so that's on there one of the last thing that I see with this power supply are the no name brand of capacitors they are 105 degrees Celsius rated which is great but they're still no name brands they should have went for a Panasonic FM series for the main filter capacitors and then for supporting electrolytic capacitors they should have went with nichicons uld, uhe or utt series if they were to do those things this would be an absolute Steal which it still is I wouldn't mind paying 10 more dollars for that little bit extra otherwise this is a well-designed unit the power transformer is also pretty robust for the price last thing I'll say is I saw another review saying that if you draw more than like 100 milliamps from it you go to turn it off and turn it on there's a 6 volt Spike for a Split Second that review i believe was a couple years old so I think they might have improved that design since then if they were to correct all these things I've listed as I've said before this power supply would be absolutely incredible which it still is but it just needs a little bit extra to get there I have high definition pictures of the inside despite this stuff this is a good beginner power supply however I do advise anybody who reads this to try to get in there and put some good thermal paste in the back of that bridge rectifier if not anything else hopefully the manufacturer reads this. Update, 3 years later after putting 800 to 1400 hours on it, driving all kinds of loads at every voltage and current setting even running it for days at a time, it's been very reliable and exceed my expectations, very quiet power, these days I have it powering a emotiva xps 1 gen 2 phonostage for my turn table, I gotta say, the power it puts out is nearly as clean as a battery, it leaks absolutely no noise into my signal chain that I can here or see on a screen with a spectograph doing 192khz 24 bit vinyl rips! Incredible for the money and best bang for your buck and only 60 bucks, why go for anything else, usually things at this price lie and over announce ratings, NOT THIS POWERSUPPLY, only two things that I notice, if the device you're driving with it injects a lot of noise back into the power supply, it can cause it to freak out a bit, but that is a very rare occurrence, you'd have to be really pushing it with questionable things which speaks volumes about it's stability, absolutely incredible. One thing I had to do is put 3 in one electric motor oil in the fan barring as it got a bit noisy, other then that, I'm very happy with it. Buy with confidence.
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4.0 out of 5 stars perfect other then a few minor details "read again for 3 year update"
Reviewed in the United States on May 6, 2019
This is a very good power supply for the money very tight voltage regulation very accurate current output and they definitely did make improvements over the first generation of this particular power supply a few things prevented it from being a100% ultimate Steal the Bridge rectifier that's bolted to the heatsink where the mosfets are has absolutely no thermal paste on the back of it which will hinder its thermal transfer, ill be most likely putting a decent amount of artic siler mx 4 non electrically conductive thermal paste on the back of it to help with heat transfer the mosfets on the other hand have plenty of thermal paste on their heat spreaders and a nice Mica insulator in between them, other issue is the voltage regulators and mosfets on the board in the to-220 packages have no heat sinks on them which they should all have their own heatsink for heat dissapation the power Inlet wires going from the IEC power connector to the main board or to the Transformer are a little too thin for my liking as well as a Transformers secondary wiring I believe thats at the bare minimum for safety if they were to go with 16 gauge for all that that would be perfect instead of 20gauge or so that's on there one of the last thing that I see with this power supply are the no name brand of capacitors they are 105 degrees Celsius rated which is great but they're still no name brands they should have went for a Panasonic FM series for the main filter capacitors and then for supporting electrolytic capacitors they should have went with nichicons uld, uhe or utt series if they were to do those things this would be an absolute Steal which it still is I wouldn't mind paying 10 more dollars for that little bit extra otherwise this is a well-designed unit the power transformer is also pretty robust for the price last thing I'll say is I saw another review saying that if you draw more than like 100 milliamps from it you go to turn it off and turn it on there's a 6 volt Spike for a Split Second that review i believe was a couple years old so I think they might have improved that design since then if they were to correct all these things I've listed as I've said before this power supply would be absolutely incredible which it still is but it just needs a little bit extra to get there I have high definition pictures of the inside despite this stuff this is a good beginner power supply however I do advise anybody who reads this to try to get in there and put some good thermal paste in the back of that bridge rectifier if not anything else hopefully the manufacturer reads this. Update, 3 years later after putting 800 to 1400 hours on it, driving all kinds of loads at every voltage and current setting even running it for days at a time, it's been very reliable and exceed my expectations, very quiet power, these days I have it powering a emotiva xps 1 gen 2 phonostage for my turn table, I gotta say, the power it puts out is nearly as clean as a battery, it leaks absolutely no noise into my signal chain that I can here or see on a screen with a spectograph doing 192khz 24 bit vinyl rips! Incredible for the money and best bang for your buck and only 60 bucks, why go for anything else, usually things at this price lie and over announce ratings, NOT THIS POWERSUPPLY, only two things that I notice, if the device you're driving with it injects a lot of noise back into the power supply, it can cause it to freak out a bit, but that is a very rare occurrence, you'd have to be really pushing it with questionable things which speaks volumes about it's stability, absolutely incredible. One thing I had to do is put 3 in one electric motor oil in the fan barring as it got a bit noisy, other then that, I'm very happy with it. Buy with confidence.
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