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 678-3827
製造零件編號SP-320-5
BrandMean Well
TWD2,887.00
單位
5 V dc - 55A 275W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 215mm 115mm 50mm 1.1kg 79% +65°C
RS庫存編號 706-6442
製造零件編號TOP 200-148
BrandTRACOPOWER
TWD3,672.00
單位
48 V dc - 4.2A 200W 1 85 → 265V ac Chassis Mount Open Frame 127mm 76.2mm 34mm 315g 92% +70°C
RS庫存編號 674-1662
製造零件編號RSP-3000-12
BrandMean Well
TWD15,867.00
單位
12 V dc - 200A 2.4kW 1 180 → 264 V ac, 254 → 370 V dc Chassis Mount Enclosed 278mm 177.8mm 63.5mm 4kg 86% +70°C
RS庫存編號 151-379
製造零件編號RSP-1000-12
BrandMean Well
TWD7,493.00
單位
12 V dc - 60A 720W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 295mm 127mm 41mm 2kg 83% +60°C
RS庫存編號 813-9049
製造零件編號HWS-50A-12/A
BrandTDK-Lambda
TWD2,828.00
單位
12 V dc - 4.3A 50W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 82mm 26.5mm 120mm 280g 87% +50°C
RS庫存編號 414-030
製造零件編號QP-200F
BrandMean Well
TWD3,560.00
單位
±15 V dc, ±24 V dc, 5 V dc - 3 A, 15 A, 700 mA 202.5W 4 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 215mm 115mm 50mm 1.2kg 75% +60°C
RS庫存編號 644-7067
製造零件編號RD-50A
BrandMean Well
TWD592.00
單位
5 V dc, 12 V dc - 2 A, 6 A 54W 2 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 99mm 97mm 36mm 410g 79% +70°C
RS庫存編號 627-3844
製造零件編號XG5
BrandExcelsys
TWD5,823.00
單位
58 V dc - 6A 288W 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 627-3850
製造零件編號XG7
BrandExcelsys
TWD3,912.00
單位
28 V dc - 5A 120W 1 85 → 264 V ac, 120 → 380 V dc PCB Mount Enclosed 269.75mm 127mm 40.4mm 100g 90% +70°C
RS庫存編號 678-3770
製造零件編號RS-100-5
BrandMean Well
TWD796.00
單位
5 V dc - 16A 80W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 159mm 97mm 38mm 600g 77% +70°C
RS庫存編號 413-667
製造零件編號RS-15-12
BrandMean Well
TWD265.00
單位
12 V dc - 1.3A 15.6W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 62.5mm 51mm 28mm 130g 81% +70°C
RS庫存編號 603-1094
製造零件編號PBA600F-24
BrandCosel
TWD14,491.00
單位
24 V dc - 27A 648W 1 85 → 264 V ac, 120 → 350 V dc Chassis Mount Open Frame 221mm 120mm 61mm 1.6kg 84% +71°C
RS庫存編號 489-8542
製造零件編號PBA50F-5-N
BrandCosel
TWD2,725.00
單位
5 V dc - 10A 50W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 136.5mm 82.5mm 34.5mm 280g 82% +71°C
RS庫存編號 289-5030
製造零件編號LPQ153-C
TWD9,369.00
單位
±15 V dc, 5 V dc - 2 A, 3 A, 6.4 A, 22 A 110W 4 85 → 132 V ac, 170 → 264 V ac, 220 → 300 V dc Chassis Mount Enclosed 216mm 108mm 38.1mm 800g 75% +50°C
RS庫存編號 816-3904
製造零件編號RST-5000-48
BrandMean Well
TWD37,721.00
單位
48 V dc - 105A 5kW 1 196 → 305 V ac, 340 → 530 V ac Chassis Mount Enclosed 460mm 211mm 83.5mm 10kg 91% +70°C
RS庫存編號 418-2285
製造零件編號TXL 060-0522TI
BrandTRACOPOWER
TWD2,831.00
單位
±12 V dc, 5 V dc - 1 A, 3.5 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 621-0613
製造零件編號RS-50-24
BrandMean Well
TWD499.00
單位
24 V dc - 2.2A 52.8W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 99mm 97mm 36mm 410g 88% +70°C
RS庫存編號 770-4074
製造零件編號RSP-750-48RS
BrandMean Well
TWD6,014.00
單位
48 V dc - 15.7A 753.6W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 250mm 127mm 41mm 1.6kg 92% +70°C
RS庫存編號 621-0663
製造零件編號RS-150-12
BrandMean Well
TWD855.00
單位
12 V dc - 12.5A 150W 1 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 83% +70°C
RS庫存編號 106-5852
製造零件編號LRS-150F-24RS
BrandMean Well
TWD700.00
單位
24 V dc - 6.5A 156W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 159mm 97mm 30mm 480g 89% +70°C