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    Bench Power Supplies & Sources

    This handy piece of equipment is used when a power source is required that can be set up on the workbench, with its own power cord and method of output connection. They're useful in electronics for applications such as testing circuits that need a power source at different voltages.

    Variable power supplies

    Bench power supplies are available in variable or fixed voltage. A variable power supply will offer the ability to adjust the output, be that voltage, resistance, current or power and is ideal where versatility is required in an application, such as circuit testing. Variable power supplies have a feature called Current Limiting so it will shut down or limit current to the maximum rating. They normally have controls to allow the change of current from zero to the specified maximum current which helps to protect components.

    Linear and switching power supplies

    Bench power supplies are available in two different designs:

    • Linear Power Supplies – electrical or ripple noise is lower and easier to contain. Linear power supplies are more suitable for powering sensitive circuitry and generate more heat, resulting in lower energy efficiency. Linear supplies are heavier because the 50 Hz or 60 Hz transformer and associated filters are physically larger.
    • Switching Power Supplies – normally a better option for portable applications and they are lighter and more compact units. Switch-mode power supplies start out the same way as Linear, rectifying and filtering AC line input voltage, however they "switch" the DC into high-frequency AC. Switching power supplies can also tolerate small losses of power without affecting output, unlike Linear power supplies and be more energy efficient.

    Choosing a Bench Power Supply

    Wondering how many channels you need? Will depend on how many supplies you want to use simultaneously, but at least two channels are normal practise for a bench power supply.

    • Energy efficiency – normally detailed in the specifications or supplier's datasheet.
    • Line Regulation – Expressed as a percentage, this shows change in the output voltage relative to changes in the input line voltage.
    • Load Regulation – is the measure to ensure that the output voltage is constant despite load variations. A good load regulation ensures that output voltage doesn't fluctuate when loads increase or are removed. This is important where test results cannot be repeated.
    Bench Power Supplies
    Bench Power Supplies
    Bench Power Supply & Source Accessories
    Bench Power Supply & Source Accessories
    Current & Voltage Calibrators
    Current & Voltage Calibrators
    Electronic Load Software
    Electronic Load Software
    Electronic Loads
    Electronic Loads
    Load Banks
    Load Banks
    Source Meters
    Source Meters

    850 Products showing for Bench Power Supplies & Sources

    1 / 43
    PeakTech 1560 Series Digital Bench Power Supply, 1 → 32V dc, 0 → 30A, 1-Output, 960W
    • RS Stock No. 283-6367
    • Mfr. Part No. P1560
    Each
    MYR3,307.69
    BK Precision 1687B Series Digital Bench Power Supply, 0 → 36V, 0 → 10A, 1-Output, 360W
    • RS Stock No. 817-2229
    • Mfr. Part No. BK1687B
    Each
    MYR3,000.28
    RS PRO Digital Bench Power Supply, 0 → 30V, 0 → 5A, 3-Output
    • RS Stock No. 180-8786
    Each
    MYR1,913.99
    Aim-TTi CPX Series Digital Bench Power Supply, 0 → 60V, 0 → 10A, 2-Output, 360W
    • RS Stock No. 804-0416
    • Mfr. Part No. CPX200D
    Each
    MYR5,942.80
    RS PRO Digital Bench Power Supply, 0 → 30V, 0 → 5A, 1-Output, 150W
    • RS Stock No. 175-7368
    Each
    MYR783.59
    RS PRO Digital Bench Power Supply, 0 → 30V, 0 → 5A, 1-Output, 150W
    • RS Stock No. 175-7367
    Each
    MYR633.02
    RS PRO Digital Bench Power Supply, 0 → 36V, 10A, 1-Output, 360W
    • RS Stock No. 123-3578
    Each
    MYR4,544.41
    Manson HCS-3400-Series Series Digital Bench Power Supply, 1 → 60V dc, 0 → 10A, 1-Output, 600W
    • RS Stock No. 283-7444
    • Mfr. Part No. HCS-3404-USB
    Each
    MYR2,089.53
    BK Precision 9201B Series Bench Power Supply, 0 → 60V, 10A, 1-Output, 200W
    • RS Stock No. 240-6661
    • Mfr. Part No. BK9201B
    Each
    MYR4,613.72
    Aim-TTi QPX Series Digital Bench Power Supply, 0 → 60V, 0 → 50A, 1-Output, 1.2kW
    • RS Stock No. 731-2858
    • Mfr. Part No. QPX1200S
    Each
    MYR9,320.85
    EA Elektro-Automatik EA-PS 9000 T Series Digital Bench Power Supply, 0 → 500V, 6A, 1-Output, 1kW
    • RS Stock No. 138-6095
    • Mfr. Part No. EA-PS 9500-06 T
    Each
    MYR15,781.29
    Keysight Technologies E363XA Series Digital Bench Power Supply, 0 → 50V, 4A, 1-Output, 175W
    • RS Stock No. 501-229
    • Mfr. Part No. E3634A
    Each
    MYR14,550.43
    RS PRO Digital Bench Power Supply, 0 → 60V, 0 → 5A, 1-Output, 300W
    • RS Stock No. 175-7365
    Each
    MYR1,791.30
    RS PRO Digital Bench Power Supply, 0 → 18V, 20A, 1-Output, 360W
    • RS Stock No. 123-3577
    Each
    MYR2,221.83
    BK Precision Power Supply Test Leads Set for Use with 9115 Series Multi-Range Programmable DC Power Supplies
    • RS Stock No. 209-9657
    • Mfr. Part No. TLPS
    Each
    MYR602.12
    RS PRO Digital Switching Power Supply, 0 → 32V, 3A, 3-Output, 420W
    • RS Stock No. 252-1598
    Each
    MYR3,989.65
    BK Precision High current premium test lead accessory for Use with 8500B Series Programmable DC Electronic Loads
    • RS Stock No. 209-9659
    • Mfr. Part No. TLPWR1
    Each
    MYR924.27
    Aim-TTi QL Series II Series Digital Bench Power Supply, 0 → 35V, 0 → 3A, 3-Output, 228W
    • RS Stock No. 285-218
    • Mfr. Part No. QL355TP
    Each
    MYR8,186.65
    RND 320-KA3005D Series Bench Power Supply, 1-Output
    • RS Stock No. 283-2737
    • Mfr. Part No. RND 320-KA3005D
    Each
    MYR553.01
    Rohde & Schwarz HMP Series Digital Bench Power Supply, 0 → 32V, 10A, 4-Output, 384W
    • RS Stock No. 174-2920
    • Mfr. Part No. HMP4040
    Each
    MYR16,879.67
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