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WANPTEK Bench Power Supply 300W (30V 10A Adjustable) US$57.23 / A$86.78 Delivered @ Banggood

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BGb2f101
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WANPTEK Lab Bench Power Supply 300W Laboratory Switching Power Supply Unit 30V 10A Adjustable Digital Source 60V 5A for $US57.23 or ~$AUD86.78 after coupon : BGb2f101, delivered from China

Features:

  1. Small size, light weight and high power density.
  2. Constant pressure and constant current switch automatically.
  3. LED display of voltage, current and power, high precision and features of voltage stabilization, current limiting, and simple operation.
  4. Adjustable Output Voltage & Current: output voltage and output current can be continuously
  5. adjusted between 0 and nominal value with fine regulating and coarse regulating
  6. it has over voltage protection(OVP), over current protection(OCP), over temperature protection
  7. Temperature controlled fan cooling, low noise, long life.
  8. Dual voltage input and convenient choice.
  9. Output Voltage ranges from 0 to rating voltage with continuous adjustment .
  10. Output current ranges from 0 to rating current with continuous adjustment
  11. AC 110v and 220V
  12. Encoder adjustment DC power supply
  13. Voltage and current one-key conversion regulation
  14. Built-in cooling fan, Smart turn on when temperature over 50℃

FCC & CE certified product

Specifications:

  • Output Power: 150W/300W/360W
  • Output voltage: 0~30V/60V/120V
  • Output current: 0~3A/5A/10A
  • Working environment:
    input voltage:AC 230V/115V±10%;50Hz/60Hz
    Working temperature:0℃~40℃;relative humidity:<80%RH
    Storage temperature:-10℃~70℃;relative humidity:<70%RH

  • Constant voltage CV:
    Voltage stability:0.1%±3mV
    Load stability: 0.2%±3mV
    Ripple voltage:≤0.5% Vp-p
    0 to rated voltage continuously adjustable

  • Constant current CC:
    Current stability:0.1%±3mA
    Load stability: 0.2%±3mA
    Ripple current:≤0.5% Vp-p
    Recovery time:≤500μS
    Temperature coefficient:≤100ppm/℃
    0 to rated current continuously adjustable

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closed Comments

  • +2

    2.Constant pressure and constant current switch automatically.

    Why would you need to control the pressure of the bench power supply?

    • +2

      Easier to work with constant pressure than over or under pressure I guess??

    • +1

      Electrical pressure is roughly what "voltage" is, and is infact the default way to say voltage in many* languages.

      (* Well, more than not in some that I know anyway)

      • Thanks for explaining, I have not seen this term being used for voltage/potential difference, but my background is in another language (where it also translates to English as pressure, but uses a different word to pressure in Pa, like air pressure).

        • -4

          No such thing as pressure in electrical terminology, unless you hook up a piece of equipment that generates a force and if that force i used to… etc etc….

          • @AndyC1: I will confidently say that you have no idea.

            Look up voltage in Wikipedia and come back after reading the first line. (I did not expect it but glad it's there).

            It is actually "voltage" itself that is not strictly a physical phenomenon (like actual electrical pressure / potential), rather it's a portmanteau based on the unit of measurement of electrical pressure.

            When people say "voltage of" or "current at," those with the slightest idea of what's actually going on know to brace for BS.

            • -4

              @fantombloo: Look up electrons and how they cause a differential voltage. Lookup current and depending on the voltage and the medium that the electrons are traveling through depends on how much current will occur.

              Both voltage and current are a physical phenomenon and are due to physics.

              • @AndyC1: Electrons cause a differential voltage? You are talking out of your arse. I'm done here.

        • @DmytroP: I suspect "potential" rather than "pressure" is probably where your language is at? They're pretty similar ideas physically. Just like the mechanical (think fluid dynamics) counterpart, the more voltage/pressure, the more current (charge / fluid) you can push through a given conductance / tube diameter.

      • -5

        and is infact the default way to say voltage in many* languages

        The post is using English. In English it is "voltage".

    • it means electrical pressure, ie voltage

    • +1

      It's a mistranslation. It means voltage

  • +1

    i've got a wanptek aps3010h 30v 10a and it has been fine so far. this price seems a little bit cheaper than on aliexpress (assuming bangood doesn't charge gst)

  • What is the usual price?

    • its currently listed as AU$120.53 before the coupon

      • Is pre coupon price a good indicator on AliExpress?

        • the pre coupon price is around $US80 on Banggood, whereas it seems around $US83 on Aliexpress if you add the tax. There may be aliexpress sellers with better prices than what I found in searching.

        • Can flixuate, especially depending on category/price point, but usually pre coupon is at least ballpark indicative of usual price on AliExpress

    • currently about US$63 - $4 coupon + $5 shipping + gst from wanptek official store on aliexpress
      you can also get a vertical one WPS3010H for around the same price (probably got the same internals). they look big in the images but they are quite compact

      banggood's prices are well inflated without coupons

  • +2

    I had a DPS3010U which died pretty soon after purchasing. All fine with the refund once they understood the issue. Opted for refund over replacement and went for a Riden RD6012. Much better on all levels!

  • +5

    Most likely switching PSU, Not lab grade.
    You need linear one, like this Lets check (Ripple voltage:≤0.5% Vp-p). At 20V output, ripple (noise) will be 100mV peak to peak. In Wavecom PS-3005D it will be (Ripple And Noise: ≤ 2mvrms) around 3mV, 30 times cleaner than this.

    You can tell by weight too, this is 1.2kg, Wavecom PS-3005D is 4.5kg :)

    • Noticed that many cheap PSUs are "adopting" PS-3005D model name. Stick to original, or here

    • excellent comment

  • wanp wanp

  • Will this let me use appliances bought from Japan (100V) and the U.S. (120V)?

    • +1

      No this is max 30V out

    • -2

      "input voltage:AC 230V/115V±10%;50Hz/60Hz"so should work in the US which is 120V/60Hz. It appears ok for Japan too but you may need to do further checking

    • you want a 230v/110v step-down transformer

  • Seeing as this has connection points I could connect alligator clips, or perhaps forked crimp connectors to, could I hook this up to a Hornby train track, set this to twelve volts and use the dial on the front to perhaps control some electric trains? At this price it's actually cheaper than actual model train controllers.

    • Yes but if you go over the maximum voltage of the train motor you may burn it out. You control the speed usually by going from somewhere between 5 to 14 volts. Looks like you only need less than 0.4 A so this is overkill. I believe newer cotrollers may be sending digital codes to newer trains but i havent partaken for about 30 years so not an expert. You can get cheap controllers for $25 off ebay

      • Thanks for the info. My trains are of the 30 year old vintage and are fondly remembered childhood possessions so the last thing I want to do is ruin them.

  • I've been wanting a nice desktop power supply for ages, thanks

  • No way this is lab grade.

    And if I'm connecting other devices to it, I want a decent power supply that will accurately give the power I dial in.

    • They say it is a "Laboratory Switching Power Supply " don't you believe them?.. What is the equivalent saying to bucket chemistry in electronics?

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