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 Number of Outputs Input Voltage Mounting Type Package Type Length Width Depth Weight Efficiency Maximum Temperature
RS庫存編號 122-7056
製造零件編號ECM100UT31
BrandXP Power
TWD3,921.00
單位
±12 V dc, 5 V dc - 3 A, 10 A, 800 mA 100W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 114.3mm 63.5mm 27mm 180g - +70°C
RS庫存編號 675-5100
製造零件編號RAC30-24SA
BrandRecom
TWD2,103.00
單位
24 V dc - 1.25A 30W 1 90 → 264V ac PCB Mount Encapsulated 89mm 63.5mm 25mm 212g 82% +70°C
RS庫存編號 627-3787
製造零件編號XCC
BrandExcelsys
TWD14,493.00
單位
- - - 1kW 6 85 → 264 V ac, 120 → 380 V dc Chassis Mount Enclosed 269.75mm 127mm 40.4mm 1.1kg 90% +70°C
RS庫存編號 777-3106
製造零件編號EPS-15-12
BrandMean Well
TWD284.00
單位
12 V dc - 1.25A 15W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 63.5mm 45.7mm 24mm 57g 82% +70°C
RS庫存編號 413-673
製造零件編號RS-15-5
BrandMean Well
TWD265.00
單位
5 V dc - 3A 15W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 62.5mm 51mm 28mm 130g 77% +70°C
RS庫存編號 489-8687
製造零件編號PBA150F-24-N
BrandCosel
TWD4,540.00
單位
24 V dc - 6.5A 156W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 168mm 93mm 34mm 560g 85 %, 88 % +71°C
RS庫存編號 192-1087
製造零件編號LPT22
TWD1,371.00
單位
±12 V dc, 5 V dc - 2 A, 4 A, 700 mA 25W 3 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 29mm 230g 70% +50°C
RS庫存編號 621-0635
製造零件編號RS-75-12
BrandMean Well
TWD592.00
單位
12 V dc - 6A 72W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 129mm 97mm 38mm 410g 84.5% +70°C
RS庫存編號 644-7196
製造零件編號RPT-60A
BrandMean Well
TWD606.00
單位
±12 V dc, ±5 V dc - 2 A, 4 A, 500 mA 46.5W 3 90 → 264 V ac, 127 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 29mm 150g - +65°C
RS庫存編號 751-1582
製造零件編號LPT102-M
TWD2,803.00
單位
±12 V dc, 5 V dc - 2 A, 9 A, 18 A 80W 3 90 → 264V ac Chassis Mount Open Frame 101.6mm 50.8mm 32.7mm 200g - +50°C
RS庫存編號 122-7085
製造零件編號ECM60US24
BrandXP Power
TWD1,537.00
單位
24 V dc - 2.5A 60W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS庫存編號 770-3933
製造零件編號EPP-150-24
BrandMean Well
TWD1,311.00
單位
24 V dc - 4.2 A, 6.25 A 100.8W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 29mm 200g 93% +70°C
RS庫存編號 150-843
製造零件編號RSP-1000-24
BrandMean Well
TWD7,493.00
單位
24 V dc - 40A 960W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 295mm 127mm 41mm 2kg 88% +60°C
RS庫存編號 905-6608
製造零件編號UX4
BrandExcelsys
TWD7,383.00
單位
- - - 600W 1 85 → 264 V ac, 120 → 380 V dc Rack Mount Enclosed 269.7mm 89mm 40.4mm - 92% +70°C
RS庫存編號 413-683
製造零件編號RT-125B
BrandMean Well
TWD1,098.00
單位
±12 V dc, 5 V dc - 1 A, 5 A, 12 A 132W 3 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 80% +70°C
RS庫存編號 621-0578
製造零件編號RS-25-12
BrandMean Well
TWD339.00
單位
12 V dc - 2.1A 25W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 78mm 51mm 28mm 200g 81.5% +70°C
RS庫存編號 770-3973
製造零件編號RPS-300-27RS
BrandMean Well
TWD2,216.00
單位
27 V dc - 7.4 A, 11.12 A 200W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Open Frame 127mm 76.2mm 35mm 370g - +70°C
RS庫存編號 756-3959
製造零件編號6EP1331-1LD00
BrandSiemens
TWD1,659.00
單位
24 V dc - 2.1A 50W 1 85 → 264V ac Chassis Mount Enclosed 128mm 97mm 38mm 350g 86% +70°C
RS庫存編號 644-7023
製造零件編號RS-150-5
BrandMean Well
TWD855.00
單位
5 V dc - 26A 130W 1 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 78% +70°C
RS庫存編號 644-8341
製造零件編號RSP-1500-12
BrandMean Well
TWD12,092.00
單位
12 V dc - 125A 1.5kW 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 278mm 127mm 83.5mm 3kg 87% +70°C