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 891-3459
製造零件編號SLS-15-060T
BrandSolaHD
HK$2,072.44
單位
15 V dc - 6A - 100 → 240V ac 1 Chassis Mount Open Frame 229mm 124mm 124mm - - 3.4kg
RS庫存編號 891-3462
製造零件編號SLS-24-072T
BrandSolaHD
HK$2,725.09
單位
24 V dc - 7.2A 173W 100 → 240V ac 1 Chassis Mount Open Frame 355mm 124mm 124mm - - 3.4kg
RS庫存編號 891-3342
製造零件編號SH15-Q8
BrandSolaHD
HK$23,472.56
單位
36 V dc - 41.6A 1.5kW 86 → 264V ac 1 Chassis Mount Enclosed 279.3mm 287.31mm 88.66mm - - 5.4kg
RS庫存編號 891-3437
製造零件編號SLS-05-120-1T
BrandSolaHD
HK$2,417.88
單位
5 V dc - 12A 60W 100 → 264V ac 1 Chassis Mount Open Frame 229mm 124mm 124mm - - 3.4kg
RS庫存編號 891-3446
製造零件編號SLS-12-068T
BrandSolaHD
HK$2,072.44
單位
12 V dc - 6.8A - 100 → 240V ac 1 Chassis Mount Open Frame 229mm 124mm 70mm - - 3.4kg
RS庫存編號 891-3428
製造零件編號SLS-05-030-1T
BrandSolaHD
HK$901.84
單位
5 V dc - 3A - 100 → 240V ac 1 Chassis Mount Open Frame 123mm 101.4mm 101.4mm - - 1.1kg
RS庫存編號 891-3465
製造零件編號SLS-24-036T
BrandSolaHD
HK$1,861.54
單位
24 V dc - 3.6A - 100 → 240V ac 1 Chassis Mount Open Frame 178mm 123.7mm 123.7mm - - 3.3kg
RS庫存編號 891-3333
製造零件編號SH15-Q6
BrandSolaHD
HK$23,472.56
單位
24 V dc - 62.4A 1.5kW 86 → 264V ac 1 Chassis Mount Enclosed 279.3mm 287.31mm 88.66mm - - 5.4kg
RS庫存編號 891-3443
製造零件編號SLS-12-051T
BrandSolaHD
HK$1,861.54
單位
12 V dc - 5.1A 61W 100 → 240V ac 1 Chassis Mount Open Frame 123mm 123.7mm 101.4mm - - 3.3kg
RS庫存編號 891-3165
製造零件編號GLT42-M
BrandSolaHD
HK$960.57
單位
5/±12 V dc - 2 A, 4 A, 500 mA 40W 85 → 264 V ac, 120 → 300 V dc 3 Surface - 127mm 76.2mm 29mm - - 230g
RS庫存編號 891-3496
製造零件編號SLO-12-000-1
BrandSolaHD
HK$239.79
單位
6.2 → 34V dc - 800mA - 100 → 240V ac 1 Chassis Mount Open Frame 39.37mm 38.1mm 38.1mm - - -
RS庫存編號 891-3456
製造零件編號SLS-24-024T
BrandSolaHD
HK$1,285.91
單位
24 V dc - 2.4A 58W 100 → 240V ac 1 Chassis Mount Open Frame 142.6mm 142.6mm 123.5mm - - 1.8kg
RS庫存編號 891-3327
製造零件編號SH15-Q2
BrandSolaHD
HK$24,309.99
單位
3.3 V dc - 300A 1.5kW 86 → 264V ac 1 Chassis Mount Enclosed 279.3mm 287.31mm 88.66mm - - 5.4kg