Embedded Switch Mode Power Supplies (SMPS)

What are Embedded Switch Mode Power Supplies?


A switch mode power supplies is a type of electronic circuit used to convert power. They are also known as switching-mode power supplies or SMPS for short. The typical topology of an SMPS is AC to DC conversion, although users may find other switches that feature an output of DC to DC voltage.


How do SMPS work?


For the power supply to transform its input voltage into an output voltage, the switch will turn on and off with high frequency. The inductors or capacitors within the device will then regulate the power to the device. This continuous switching of the capacitor maintains the voltage at the desired level and provides excellent efficiency.


How do SMPS convert AC to DC?


In the case of AC mains usage, the input voltage will be filtered the same way with a capacitor or inductor to regulate the power and give you the DC output.


Which SMPS is best for a desktop PC?


The power supply unit you use in your PC is important as it ultimately determines what other components you can use within it and the output in performance you get at the end. For high-end gaming PC builds you should aim for an efficiency rating of >80%. The higher the rating, the less electricity it consumes. The less electricity used means easier heat dissipation which keeps the PC cool and performing optimally.


Switching power supply units with higher efficiency and lower levels of heat dissipation are typically compact in nature, making them ideal for projects with limited space.


Where are SMPS used?


  • PC/Laptops

  • Mobile phone chargers

  • Security systems such as CCTV Cameras

  • Machine tool industries

...
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Description Price Output Voltage Series Output Current Power Rating Input Voltage Number of Outputs Mounting Type Package Type Length Width Depth Ripple And Noise Load Regulation Weight
RS Stock No. 106-5869
Mfr. Part No.LRS-350-24RS
BrandMean Well
$125.06
Each
units
24 V dc - 14.6A 350W 90 → 132 V ac, 180 → 264 (By Switch) V ac, 240 → 370 V dc 1 Chassis Mount Enclosed 215mm 115mm 30mm - - 760g
RS Stock No. 106-5846
Mfr. Part No.LRS-100-24RS
BrandMean Well
$57.32
Each
units
24 V dc - 4.5A 108W 85 → 264 V ac, 120 → 373 V dc 1 Chassis Mount Enclosed 129mm 97mm 30mm - - 340g
RS Stock No. 665-5820
Mfr. Part No.TEX 120-124
BrandTRACOPOWER
$382.45
Each
units
24 V dc - 5A 120W 85 → 264 V ac, 85 → 375 V dc 1 Chassis Mount Enclosed 174mm 93mm 56mm - - 1kg
RS Stock No. 705-9835
Mfr. Part No.SP-240-24RS
BrandMean Well
$257.61
Each
units
24 V dc - 10A 240W 88 → 264 V ac, 124 → 370 V dc 1 Chassis Mount Enclosed 190mm 93mm 50mm - - 800g
RS Stock No. 621-0685
Mfr. Part No.RS-150-24
BrandMean Well
$119.01
Each
units
24 V dc - 6.5A 156W 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc 1 Chassis Mount Enclosed 199mm 98mm 38mm - - 700g
RS Stock No. 489-8700
Mfr. Part No.PBA300F-24
BrandCosel
$533.93
Each
units
24 V dc - 14A 336W 85 → 264 V ac, 120 → 350 V dc 1 Chassis Mount Enclosed 170mm 102mm 42mm - - 1kg
RS Stock No. 844-3991
Mfr. Part No.RAC48-12S/OF
BrandRecom
$34.16
Each
units
12 V dc - 4A 48W 90 → 265 V ac, 127 → 370 V dc 1 Chassis Mount Open Frame 101.6mm 50.8mm 30mm - - 145g
RS Stock No. 705-9854
Mfr. Part No.SPV-300-48RS
BrandMean Well
$315.50
Each
units
48 V dc - 6.25A 300W 88 → 264 V ac, 124 → 370 V dc 1 Chassis Mount Enclosed 215mm 115mm 50mm - - 1.1kg
RS Stock No. 183-0054
Mfr. Part No.LPT45
$87.14
Each
units
5/±15 V dc - 2.5 A, 5 A, 700 mA 40W 85 → 264 V ac, 120 → 300 V dc 3 Chassis Mount Open Frame 127mm 76.2mm 29mm - - 230g
RS Stock No. 413-667
Mfr. Part No.RS-15-12
BrandMean Well
$41.68
Each
units
12 V dc - 1.3A 15.6W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 62.5mm 51mm 28mm - - 130g
RS Stock No. 603-1094
Mfr. Part No.PBA600F-24
BrandCosel
$777.05
Each
units
24 V dc - 27A 648W 85 → 264 V ac, 120 → 350 V dc 1 Chassis Mount Open Frame 221mm 120mm 61mm - - 1.6kg
RS Stock No. 122-7746
Mfr. Part No.ECL15US05-T
BrandXP Power
$34.67
Each
units
5 V dc - 3A 15W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Open Frame 78.7mm 31.8mm 20mm - - 35g
RS Stock No. 122-7046
Mfr. Part No.ECM100US12
BrandXP Power
$130.60
Each
units
12 V dc - 8.3A 100W 90 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Open Frame 114.3mm 63.5mm 27mm - - 180g
RS Stock No. 106-5852
Mfr. Part No.LRS-150F-24RS
BrandMean Well
$78.18
Each
units
24 V dc - 6.5A 156W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 159mm 97mm 30mm - - 480g
RS Stock No. 192-1087
Mfr. Part No.LPT22
$65.91
Each
units
5/±12 V dc - 2 A, 4 A, 700 mA 25W 85 → 264 V ac, 120 → 300 V dc 3 Chassis Mount Open Frame 127mm 76.2mm 29mm - - 230g
RS Stock No. 106-5853
Mfr. Part No.LRS-150F-36RS
BrandMean Well
$44.12
Each
units
36 V dc - 4.3A 154.8W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 159mm 97mm 30mm - - 480g
RS Stock No. 705-9850
Mfr. Part No.SPV-300-24RS
BrandMean Well
$205.32
Each
units
24 V dc - 12.5A 300W 88 → 264 V ac, 124 → 370 V dc 1 Chassis Mount Enclosed 215mm 115mm 50mm - - 1.1kg
RS Stock No. 183-0098
Mfr. Part No.LPS65
$105.15
Each
units
24 V dc - 2.5A 60W 85 → 264 V ac, 120 → 300 V dc 1 Chassis Mount Open Frame 127mm 76.2mm 42.9mm - - 340g
RS Stock No. 621-0584
Mfr. Part No.RS-25-24
BrandMean Well
$82.74
Each
units
24 V dc - 1.1A 26W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 200g
RS Stock No. 621-0679
Mfr. Part No.RS-100-24
BrandMean Well
$113.80
Each
units
24 V dc - 4.5A 108W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 159mm 97mm 38mm - - 600g
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