Embedded Switch Mode Power Supplies (SMPS)

A switch mode power supply 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. 621-0578
Mfr. Part No.RS-25-12
BrandMean Well
PHP779.20
Each
units
12 V dc - 2.1A 25W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 200g
RS Stock No. 621-0641
Mfr. Part No.RS-75-24
BrandMean Well
PHP1,201.29
Each
units
24 V dc - 3.2A 76.8W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 129mm 97mm 38mm - - 410g
RS Stock No. 489-8659
Mfr. Part No.PBA100F-24-N
BrandCosel
PHP5,417.25
Each
units
24 V dc - 4.5A 108W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 160.5mm 93.5mm 35.5mm - - 440g
RS Stock No. 418-2409
Mfr. Part No.TXL 100-0534TI
BrandTRACOPOWER
PHP10,206.12
Each
units
5/12/24 V dc - 2 A, 4 A, 12 A 100W 85 → 264V ac 3 Chassis Mount Enclosed 208mm 95mm 38mm - - 800g
RS Stock No. 182-9975
Mfr. Part No.LPS42
PHP1,837.32
Each
units
5 V dc - 11A 40W 85 → 264 V ac, 120 → 300 V dc 1 Chassis Mount Open Frame 127mm 76.2mm 29mm - - 230g
RS Stock No. 413-605
Mfr. Part No.RS-15-24
BrandMean Well
PHP683.61
Each
units
24 V dc - 625mA 15W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 62.5mm 51mm 28mm - - 130g
RS Stock No. 621-0679
Mfr. Part No.RS-100-24
BrandMean Well
PHP1,782.44
Each
units
24 V dc - 4.5A 108W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 159mm 97mm 38mm - - 600g
RS Stock No. 489-8700
Mfr. Part No.PBA300F-24
BrandCosel
PHP18,468.40
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. 848-1870
Mfr. Part No.GLC65BG
PHP10,479.65
Each
units
5.1/±12 V dc - - 60W 90 → 264V ac 3 Chassis Mount Open Frame - - - - - -
RS Stock No. 106-5846
Mfr. Part No.LRS-100-24RS
BrandMean Well
PHP984.13
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. 621-0685
Mfr. Part No.RS-150-24
BrandMean Well
PHP1,733.50
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. 489-8687
Mfr. Part No.PBA150F-24-N
BrandCosel
PHP8,537.13
Each
units
24 V dc - 6.5A 156W 85 → 264 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 168mm 93mm 34mm - - 560g
RS Stock No. 833-8167
Mfr. Part No.MAP55-4004
PHP14,065.90
Each
units
5/±15/24 V dc - 1.5 A, 6 A, 500 mA 55W 90 → 132 V ac, 175 → 264 V ac 4 U Bracket U Bracket 152.4mm 83.1mm 40.6mm - - 550g
RS Stock No. 106-5852
Mfr. Part No.LRS-150F-24RS
BrandMean Well
PHP1,601.21
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. 413-667
Mfr. Part No.RS-15-12
BrandMean Well
PHP675.78
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. 678-3773
Mfr. Part No.RS-75-5
BrandMean Well
PHP1,312.17
Each
units
5 V dc - 12A 60W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 129mm 97mm 38mm - - 410g
RS Stock No. 183-0004
Mfr. Part No.LPS45
PHP2,482.90
Each
units
24 V dc - 2.3A 40W 85 → 264 V ac, 120 → 300 V dc 1 Chassis Mount Open Frame 127mm 76.2mm 29mm - - 230g
RS Stock No. 106-5869
Mfr. Part No.LRS-350-24RS
BrandMean Well
PHP2,083.72
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. 680-2708
Mfr. Part No.LS25-24
BrandTDK-Lambda
PHP1,360.97
Each
units
24 V dc - 1.1A 25W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 3.1in 2in 1.1in - - 170g
RS Stock No. 629-5535
Mfr. Part No.NFS110-7602PJ
PHP6,728.21
Each
units
5.1/±12/24 V dc - 3.5 A, 4.5 A, 8 A, 500 mA 80W 85 → 264 V ac, 120 → 370 V dc 4 Chassis Mount Open Frame 177.8mm 107.95mm 45.72mm - - 600g
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