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


...
顯示內容 隱藏內容

篩選條件

正在檢視 261 - 280,共 4411 項產品
Results per page
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庫存編號 665-5811
製造零件編號TEX 120-112
BrandTRACOPOWER
HK$3,637.40
單位
12 V dc - 8A 96W 85 → 264 V ac, 85 → 375 V dc 1 Chassis Mount Enclosed 174mm 93mm 56mm - - 1kg
RS庫存編號 259-568
製造零件編號JWS 75 5A HFP
BrandTDK-Lambda
HK$1,372.20
單位
5 V dc - 15A 75W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 175mm 92mm 42mm - - 450g
RS庫存編號 771-9385
BrandRS PRO
HK$62.48
單位
24 V dc - 125mA 3W 85 → 264 V ac, 100 → 400 V dc 1 PCB Mount Ultra-Miniature 35mm 24mm 11mm - - -
RS庫存編號 706-6192
製造零件編號TML 40254C
BrandTRACOPOWER
HK$977.13
單位
5/24 V dc - 5 A, 625 mA 40W 90 → 264 V ac, 100 → 375 V dc 2 Chassis Mount Encapsulated 112mm 63.7mm 32.5mm - - 325g
RS庫存編號 635-2161
製造零件編號HWS300-12
BrandTDK-Lambda
HK$2,531.04
單位
12 V dc - 27A 324W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 6.5in 3.23in 2.4in - - 1kg
RS庫存編號 103-4705
製造零件編號RPS-120-24
BrandMean Well
HK$215.93
單位
24 V dc - 5A 84W 80 → 264 V ac, 113 → 370 V dc 1 PCB Mount Open Frame 101.6mm 50.8mm 29mm - - 150g
RS庫存編號 122-7827
製造零件編號HDS800PS12
BrandXP Power
HK$3,138.20
單位
12 V dc - 66.7A 800W 90 → 264 V ac, 127 → 370 V dc 1 Chassis Mount Enclosed 249mm 127mm 40.9mm - - 1.8kg
RS庫存編號 621-0607
製造零件編號RS-35-24
BrandMean Well
HK$153.86
單位
24 V dc - 1.5A 36W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 99mm 82mm 36mm - - 300g
RS庫存編號 771-9379
BrandRS PRO
HK$70.07
單位
5 V dc - 500mA 3W 85 → 264 V ac, 100 → 400 V dc 1 PCB Mount Ultra-Miniature 35mm 24mm 11mm - - -
RS庫存編號 377-6889
製造零件編號LFVLT60-1000
BrandEOS
HK$379.75
單位
5 V dc - 10A 50W 90 → 132 V ac, 180 → 264 V ac 1 Chassis Mount Open Frame 101.6mm 51.8mm 27.18mm - - 150g
RS庫存編號 418-2241
製造零件編號TXL 070-24S
BrandTRACOPOWER
HK$700.44
單位
24 V dc - 3A 70W 85 → 264 V ac, 120 → 375 V dc 1 Chassis Mount Enclosed 169mm 95mm 38mm - - 700g
RS庫存編號 418-2077
製造零件編號TML 30112
BrandTRACOPOWER
HK$730.79
單位
12 V dc - 2.5A 30W 85 → 264 V ac, 100 → 370 V dc 1 PCB Mount Encapsulated 88.9mm 63.5mm 25mm - - 230g
RS庫存編號 739-7998
製造零件編號ZWS-75BAF-48
BrandTDK-Lambda
HK$919.45
單位
48 V dc - 1.6A 76.8W 85 → 265 V ac, 120 → 370 V dc 1 Chassis Mount Open Frame 150mm 33mm 50mm - - 230g
RS庫存編號 627-3844
製造零件編號XG5
BrandExcelsys
HK$1,180.23
單位
58 V dc - 6A 288W 85 → 264 V ac, 120 → 380 V dc 1 Chassis Mount Enclosed 269.75mm 127mm 40.4mm - - 100g
RS庫存編號 706-6161
製造零件編號TML 40112C
BrandTRACOPOWER
HK$740.73
單位
12 V dc - 3.333A 40W 90 → 264 V ac, 100 → 375 V dc 1 Chassis Mount Encapsulated 112mm 63.7mm 32.5mm - - 325g
RS庫存編號 418-2386
製造零件編號TXL 100-0522TI
BrandTRACOPOWER
HK$1,087.23
單位
5/12 V dc - 1.5 A, 5 A, 12 A 100W 85 → 264V ac 3 Chassis Mount Enclosed 208mm 95mm 38mm - - 800g
RS庫存編號 680-2805
製造零件編號LS100-36
BrandTDK-Lambda
HK$364.64
單位
36 V dc - 3A 100W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 6.3in 3.8in 1.5in - - 600g
RS庫存編號 338-1807
製造零件編號JWT100-5FF/A
BrandTDK-Lambda
HK$2,853.55
單位
5/±15 V dc - 1 A, 4.5 A, 13 A 100W 85 → 265 V ac, 120 → 330 V dc 3 Chassis Mount Enclosed 203mm 92mm 48mm - - 720g
RS庫存編號 413-655
製造零件編號RT-65C
BrandMean Well
HK$369.85
單位
5/±15 V dc - 2.2 A, 5 A, 500 mA 65.5W 88 → 264 V ac, 125 → 373 V dc 3 Chassis Mount Enclosed 129mm 98mm 38mm - - 440g
RS庫存編號 405-0611
製造零件編號LDA15F-24-SN
BrandCosel
HK$452.04
單位
24 V dc - 700mA 16.8W 85 → 264 V ac, 110 → 370 V dc 1 Chassis Mount Enclosed 145mm 57mm 32mm - - 95g