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 183-0010
製造零件編號LPT42
TWD1,433.00
單位
±12 V dc, 5 V dc - 2.5 A, 5 A, 700 mA 40W 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 815-7393
製造零件編號MSP-600-12
BrandMean Well
TWD5,713.00
單位
12 V dc - 53A 636W 1 85 → 264 V ac, 120 → 370 V dc Rack Mount Enclosed 218mm 105mm 63.5mm 1.6kg - +70°C
RS庫存編號 455-7689
製造零件編號LPT42-M
TWD1,993.00
單位
±12 V dc, 5 V dc - 2.5 A, 5 A, 700 mA 40W 3 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 29mm 230g - +50°C
RS庫存編號 739-8010
製造零件編號ZWS-150BAF-24
BrandTDK-Lambda
TWD3,272.00
單位
24 V dc - 6.3A 151W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Open Frame 188mm 47mm 85mm 390g 90% +70°C
RS庫存編號 489-8586
製造零件編號PBA50F-24-N
BrandCosel
TWD2,725.00
單位
24 V dc - 2.2A 52.8W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 136.5mm 82.5mm 34.5mm 280g 84% +71°C
RS庫存編號 898-7223
製造零件編號VS100E-24/A
BrandTDK-Lambda
TWD1,418.00
單位
24 V dc - 4.3A 103W 1 85 → 132 V ac, 110 → 175 V dc Chassis Mount Enclosed 185mm 72mm 45mm 290g 86% +70°C
RS庫存編號 777-5063
製造零件編號ZWS10B-5
BrandTDK-Lambda
TWD922.00
單位
5 V dc - 2A 10W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Open Frame 73.5mm 55mm 22mm 45g 78% +70°C
RS庫存編號 621-0584
製造零件編號RS-25-24
BrandMean Well
TWD339.00
單位
24 V dc - 1.1A 26W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 78mm 51mm 28mm 200g 86% +70°C
RS庫存編號 627-3838
製造零件編號XG4
BrandExcelsys
TWD5,823.00
單位
30 V dc - 10A 240W 1 85 → 264 V ac, 120 → 380 V dc Chassis Mount Enclosed 269.75mm 127mm 40.4mm 100g 90% +70°C
RS庫存編號 192-1267
製造零件編號LPS255-C
TWD10,019.00
單位
24 V dc - 10.4A 250W 1 85 → 264 V ac, 120 → 300 V dc Chassis Mount Enclosed 262mm 127mm 76.2mm 1.2kg 75% +50°C
RS庫存編號 183-0076
製造零件編號LPS63
TWD1,953.00
單位
12 V dc - 5A 60W 1 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 42.9mm 340g 70% +50°C
RS庫存編號 813-9070
製造零件編號HWS-150A-12/A
BrandTDK-Lambda
TWD4,591.00
單位
12 V dc - 13A 150W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 82mm 37mm 160mm 500g 90% +50°C
RS庫存編號 644-8177
製造零件編號SP-320-24
BrandMean Well
TWD2,892.00
單位
24 V dc - 13A 312W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 215mm 115mm 50mm 1.1kg 87% +65°C
RS庫存編號 786-4729
BrandRS PRO
TWD434.00
單位
5 V dc - 1A 5W 1 85 → 264 V ac, 100 → 400 V dc PCB Mount Encapsulated 42mm 11mm 24mm 10g 70% +85°C
RS庫存編號 200-190
製造零件編號NV1-453TT
BrandTDK-Lambda
TWD7,319.00
單位
3.3 V dc, 5 V dc - 1 A, 5 A, 15 A, 25 A 175W 4 90 → 264V ac Chassis Mount Open Frame 5in 3in 1.25in 250g - +70°C
RS庫存編號 655-8482
製造零件編號PPS-125-12
BrandMean Well
TWD2,332.00
單位
12 V dc - 8.5A 102W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Open Frame 127mm 76.2mm 34.6mm 370g 80% +70°C
RS庫存編號 418-2291
製造零件編號TXL 060-0533TI
BrandTRACOPOWER
TWD2,831.00
單位
±15 V dc, 5 V dc TXL 1 A, 3 A, 7 A 60W 3 85 → 264 V ac, 120 → 375 V dc Chassis Mount Enclosed 169mm 95mm 38mm 700g 70 → 84% +70°C
RS庫存編號 122-7189
製造零件編號SDS60UT06
BrandXP Power
TWD1,894.00
單位
±12 V dc, ±5 V dc - 3 A, 6 A, 800 mA 63W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 127mm 76.2mm 30.5mm 240g 80% +70°C
RS庫存編號 621-0657
製造零件編號RS-100-12
BrandMean Well
TWD796.00
單位
12 V dc - 8.5A 102W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 159mm 97mm 38mm 600g 81% +70°C
RS庫存編號 833-8158
製造零件編號MAP55-4003
TWD13,191.00
單位
±12 V dc, ±5 V dc - 2.5 A, 6 A, 500 mA 55W 4 90 → 132 V ac, 175 → 264 V ac U Bracket U Bracket 152.4mm 83.1mm 40.6mm 550g 73 (Min.)% +70°C