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 Stock No. 183-9462
Mfr. Part No.CUS-1500M-48
BrandTDK-Lambda
kr 6 416,63
Each
Units
48 V dc CUS1500M 32A 1.5kW 85 → 265 V ac, 120 → 340 V dc 1 - Enclosed 127mm 261mm 63mm - - 3kg
RS Stock No. 183-9419
Mfr. Part No.QS5-600-48
BrandTDK-Lambda
kr 3 260,35
Each
Units
48 V dc QS 12.5A 600W 90 → 264V ac 1 Chassis Mount Enclosed 270mm 127mm 63.3mm - - -
RS Stock No. 183-9432
Mfr. Part No.CUS-150M-28/F
BrandTDK-Lambda
kr 1 098,36
Each
Units
28 V dc CUS150M - 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 265g
RS Stock No. 183-9426
Mfr. Part No.CUS-150M-18/F
BrandTDK-Lambda
kr 1 098,36
Each
Units
18 V dc CUS150M - 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 265g
RS Stock No. 183-9420
Mfr. Part No.QS5H-1200-48
BrandTDK-Lambda
kr 4 520,58
Each
Units
48 V dc QS 25A 1.2kW 90 → 264V ac 1 Chassis Mount Enclosed 270mm 127mm 63.3mm - - -
RS Stock No. 183-9428
Mfr. Part No.CUS-150M-18/U
BrandTDK-Lambda
kr 936,49
Each
Units
18 V dc CUS150M 8.33A 150W 85 → 264V ac 1 Chassis Mount - 116mm 64mm 38.5mm - - 245g
RS Stock No. 183-9422
Mfr. Part No.CUS-150M-12/A
BrandTDK-Lambda
kr 959,56
Each
Units
12 V dc CUS150M 12.5A 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 255g
RS Stock No. 183-9429
Mfr. Part No.CUS-150M-24/A
BrandTDK-Lambda
kr 959,56
Each
Units
24 V dc CUS150M 6.25A 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 255g
RS Stock No. 183-9423
Mfr. Part No.CUS-150M-15/A
BrandTDK-Lambda
kr 959,56
Each
Units
15 V dc CUS150M 10A 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 255g
RS Stock No. 183-9415
Mfr. Part No.QS7-1080-12
BrandTDK-Lambda
kr 6 115,95
Each
Units
12 V dc QS 90A 1.08kW 90 → 264V ac 1 Chassis Mount Enclosed 270mm 176mm 63.3mm - - -
RS Stock No. 183-9436
Mfr. Part No.CUS-150M-48/A
BrandTDK-Lambda
kr 959,56
Each
Units
48 V dc CUS150M 3.12A 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 255g
RS Stock No. 183-9434
Mfr. Part No.CUS-150M-28/U
BrandTDK-Lambda
kr 936,49
Each
Units
28 V dc CUS150M 5.4A 150W 85 → 264V ac 1 Chassis Mount U Bracket 116mm 64mm 38.5mm - - 245g
RS Stock No. 183-9460
Mfr. Part No.CUS-1500M-36
BrandTDK-Lambda
kr 6 416,63
Each
Units
36 V dc CUS1500M 42A 1.5kW 85 → 265 V ac, 120 → 340 V dc 1 - Enclosed 127mm 261mm 63mm - - 3kg
RS Stock No. 183-9418
Mfr. Part No.QS7-1200-24
BrandTDK-Lambda
kr 6 115,95
Each
Units
24 V dc QS 50A 1.2kW 90 → 264V ac 1 Chassis Mount Enclosed 270mm 176mm 63.3mm - - -
RS Stock No. 183-9431
Mfr. Part No.CUS-150M-28/A
BrandTDK-Lambda
kr 959,56
Each
Units
28 V dc CUS150M 5.4A 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 255g
RS Stock No. 183-9421
Mfr. Part No.QS7-1200-48
BrandTDK-Lambda
kr 6 115,95
Each
Units
48 V dc QS 25A 1.2kW 90 → 264V ac 1 Chassis Mount Enclosed 270mm 176mm 63.3mm - - -
RS Stock No. 183-9430
Mfr. Part No.CUS-150M-28
BrandTDK-Lambda
kr 832,42
Each
Units
28 V dc CUS150M 5.4A 150W 85 → 264V ac 1 Chassis Mount Open Frame 101.6mm 50.8mm 31.5mm - - 185g
RS Stock No. 183-9424
Mfr. Part No.CUS-150M-18
BrandTDK-Lambda
kr 832,42
Each
Units
18 V dc CUS150M 8.33A 150W 85 → 264V ac 1 Chassis Mount Open Frame 101.6mm 50.8mm 31.5mm - - 185g
RS Stock No. 183-9416
Mfr. Part No.QS5-600-24
BrandTDK-Lambda
kr 3 260,35
Each
Units
24 V dc QS 25A 600W 90 → 264V ac 1 Chassis Mount Enclosed 270mm 127mm 63.3mm - - -
RS Stock No. 183-9425
Mfr. Part No.CUS-150M-18/A
BrandTDK-Lambda
kr 959,56
Each
Units
18 V dc CUS150M 8.33A 150W 85 → 264V ac 1 Chassis Mount Enclosed 116mm 64mm 39.7mm - - 255g