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

...
Read more Read less

Filters

Viewing 1 - 20 of 4428 products
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 Stock No. 786-4735
BrandRS PRO
PHP706.29
Each
units
15V dc - 340mA 5W 100 400 V dc, 85 264 V ac 1 PCB Mount Ultra-Miniature 42mm 11mm 24mm - - -
RS Stock No. 667-5789
BrandRS PRO
PHP913.09
Each
units
5V dc - 1A 5W 110 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 50.8mm 25.4mm 15.16mm - - 35g
RS Stock No. 711-2624
BrandRS PRO
PHP3,140.46
Each
units
12V dc - 5A 60W 88 264V ac 1 Chassis Mount Enclosed 98mm 82mm 35mm - - 310g
RS Stock No. 711-2611
BrandRS PRO
PHP2,676.03
Each
units
5V dc - 6A 30W 88 264V ac 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 180g
RS Stock No. 771-9382
BrandRS PRO
PHP629.13
Each
units
9V dc - 111mA 1W 120 430 V dc, 85 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 751-1412
BrandRS PRO
PHP2,291.73
Each
units
24V dc - 833mA 20W 120 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 53.5mm 28.5mm 23.5mm - - 50g
RS Stock No. 671-6717
BrandRS PRO
PHP1,164.78
Each
units
24V dc - 450mA 10W 120 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 53.5mm 28.5mm 19mm - - 50g
RS Stock No. 771-9420
BrandRS PRO
PHP1,983.84
Each
units
5V dc - 3A 15W 120 375 V dc, 85 265 V ac 1 PCB Mount Enclosed 76.2mm 50.8mm 22.8mm - - 160g
RS Stock No. 124-4713
BrandRS PRO
PHP1,831.75
Each
units
32V dc - 1.87A 60W 100 230V ac 1 Panel Mount Open Frame 101.6mm 50.8mm 29mm - - -
RS Stock No. 751-1415
BrandRS PRO
PHP2,651.55
Each
units
5V dc - 6A 30W 85 265V ac 1 PCB Mount Enclosed 89mm 63.5mm 25mm - - 250g
RS Stock No. 711-2614
BrandRS PRO
PHP2,676.03
Each
units
12V dc - 3A 36W 88 264V ac 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 180g
RS Stock No. 771-8540
BrandRS PRO
PHP4,489.98
Each
units
12V dc - 8.5A 102W 88 264V ac 1 Chassis Mount Enclosed 158mm 97mm 38mm - - 520g
RS Stock No. 751-1421
BrandRS PRO
PHP2,180.61
Each
units
24V dc - 1.25A 30W 85 265V ac 1 PCB Mount Enclosed 89mm 63.5mm 25mm - - 250g
RS Stock No. 771-9379
BrandRS PRO
PHP505.23
Each
units
5V dc - 500mA 3W 100 400 V dc, 85 264 V ac 1 PCB Mount Ultra-Miniature 35mm 24mm 11mm - - -
RS Stock No. 181-2144
BrandRS PRO
PHP4,417.27
1 Tube of 13
Tube(s)
24V dc - 210mA 5W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 181-2149
BrandRS PRO
PHP6,973.86
1 Tube of 19
Tube(s)
24V dc - 250mA 6W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm - - 31g
RS Stock No. 181-2145
BrandRS PRO
PHP6,973.86
1 Tube of 19
Tube(s)
3V dc - 1.25A 4.1W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm - - 31g
RS Stock No. 667-5764
BrandRS PRO
PHP743.38
Each
units
9V dc - 330mA 3W 110 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 37mm 23mm 15mm - - 25g
RS Stock No. 161-8298
BrandRS PRO
PHP1,236.00
Each
units
15V dc - - 150W 170 264 V ac, 85 132 V ac 1 Chassis Mount Enclosed 99mm 82mm 30mm - - 480g
RS Stock No. 181-3262
BrandRS PRO
PHP2,130.42
Each
units
- - - - - - - - - - - - - -
Related Products
The TMG series from TRACO POWER offers an ...
Description:
The TMG series from TRACO POWER offers an excellent range of 7 W to 50 W, AC-DC power supplies. These highly reliable, fully encapsulated power supplies have been designed in an industry standard plastic casing for PCB mounting. The range ...
Recom RAC series of universal-input, board-mounting modules which ...
Description:
Recom RAC series of universal-input, board-mounting modules which offer a compact 2" x 1" package. The RAC series is a cost effective solution to a wide range of space-critical applications. Features and BenefitsCompact AC-DC power supplyPCB mount package3kVac isolationLow output ...
From Mean Well, the IRM-03 Series of encapsulated ...
Description:
From Mean Well, the IRM-03 Series of encapsulated AC-DC power supplies are constructed from a phenolic case and fully potted silicone. The construction meets anti-vibration demand up to 5G and provides resistance to dust and moisture while enhancing heat dissipation. ...
RAC series 6W, universal input, single/dual output AC ...
Description:
RAC series 6W, universal input, single/dual output AC / DC converter power supply with a compact design. These universal input, single/dual output AC / DC converters are PCB mounting, low cost and have a high efficiency. Wide input voltage rangeCompact ...