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庫存編號 848-1851
製造零件編號GLC40AG
HK$1,010.02
單位
5.1/±12 V dc - - 40W 90 → 264V ac 3 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1911
製造零件編號GLC75DG
HK$1,295.00
單位
5.1/±12/24 V dc - - 75W 90 → 264V ac 4 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1882
製造零件編號GLC65EG
HK$1,600.00
單位
5/12/24 V dc - - 60W 90 → 264V ac 3 Chassis Mount Open Frame - - - - - -
RS庫存編號 851-3267
製造零件編號MINT1150A4806K01
HK$896.77
單位
48 V dc - 2.08 A, 3.13 A 100W 100 → 240 V ac, 120 → 370 V dc 1 Open Frame Open Frame 101.6mm 50.8mm 33.02mm - - 183g
RS庫存編號 848-2138
製造零件編號GSC20-12G
HK$715.27
單位
12 V dc - - 20W 90 → 264V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1983
製造零件編號GNT424ABG
HK$3,197.58
單位
24 V dc - - 300W 100 → 240V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1788
製造零件編號CINT1200A4875K01
HK$1,091.85
單位
48 V dc - - 180W 90 → 264V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-2062
製造零件編號GPFC125AG
HK$3,084.13
單位
5/12/±12 V dc - - 50W 90 → 264V ac 4 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-4689
製造零件編號GSM11-24AAG
HK$430.66
單位
24 V dc - - 11W 85 → 264V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1775
製造零件編號CINT1200A1275K01
HK$1,091.85
單位
12 V dc - - 180W 90 → 264V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-2113
製造零件編號GPM40AG
HK$1,312.97
單位
5.1/±12 V dc - - 40W 85 → 264V ac 3 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-4712
製造零件編號GSM28-5G
HK$919.73
單位
5 V dc - 5.5A 28W 90 → 264V ac 1 Chassis Mount Open Frame 101.6mm 65.08mm 65.8mm - - -
RS庫存編號 848-1987
製造零件編號GNT448ABG
HK$3,837.05
單位
48 V dc - - 300W 100 → 240V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1918
製造零件編號GLC75CG
HK$1,376.44
單位
5.1/12/±15 V dc - - 75W 90 → 264V ac 4 Chassis Mount Open Frame - - - - - -
RS庫存編號 851-3309
製造零件編號MINT1275A1514K01
HK$1,706.24
單位
15 V dc - 18.3A 275W 100 → 240 V ac, 120 → 370 V dc 1 Open Frame Open Frame 127mm 76.2mm 33mm - - 325g
RS庫存編號 848-1949
製造零件編號GLM65BG
HK$1,374.29
單位
5.1/±15 V dc - - 60W 90 → 264V ac 1 Chassis Mount Open Frame - - - - - -
RS庫存編號 848-1870
製造零件編號GLC65BG
HK$1,600.00
單位
5.1/±12 V dc - - 60W 90 → 264V ac 3 Chassis Mount Open Frame - - - - - -
RS庫存編號 851-3214
製造零件編號MINT1065A1275C01
HK$466.63
單位
12 V dc - 5.25A 65W 100 → 240V ac 1 Chassis Mount Open Frame 101.6mm 50.8mm 26mm - - 150g
RS庫存編號 848-1823
製造零件編號GB60S15K
HK$379.83
單位
- - - - - - - Open Frame - - - - - -
RS庫存編號 848-4677
製造零件編號GSM11-12AAG
HK$430.66
單位
12 V dc - - 11W 85 → 264V ac 1 Chassis Mount Open Frame - - - - - -