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 4408 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. 771-9382
BrandRS PRO
PHP517.86
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. 711-2611
BrandRS PRO
PHP2,228.64
Each
units
5V dc - 6A 30W 88 → 264V ac 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 180g
RS Stock No. 786-4735
BrandRS PRO
PHP606.16
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. 711-2624
BrandRS PRO
PHP2,629.12
Each
units
12V dc - 5A 60W 88 → 264V ac 1 Chassis Mount Enclosed 98mm 82mm 35mm - - 310g
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. 771-9379
BrandRS PRO
PHP408.34
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. 771-8540
BrandRS PRO
PHP3,723.20
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. 124-4713
BrandRS PRO
PHP1,658.74
Each
units
32V dc - 1.87A 60W 100 → 230V ac 1 Panel Mount Open Frame 101.6mm 50.8mm 29mm - - -
RS Stock No. 671-6717
BrandRS PRO
PHP1,139.17
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. 711-2614
BrandRS PRO
PHP2,184.94
Each
units
12V dc - 3A 36W 88 → 264V ac 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 180g
RS Stock No. 751-1425
BrandRS PRO
PHP2,440.50
Each
units
5V dc - 8A 40W 85 → 265V ac 1 PCB Mount Enclosed 89mm 63.5mm 25mm - - 250g
RS Stock No. 751-1415
BrandRS PRO
PHP2,180.61
Each
units
5V dc - 6A 30W 85 → 265V ac 1 PCB Mount Enclosed 89mm 63.5mm 25mm - - 250g
RS Stock No. 771-9420
BrandRS PRO
PHP1,669.55
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. 751-1412
BrandRS PRO
PHP1,904.75
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. 181-2186
BrandRS PRO
PHP326.00
Each
units
3V dc - 770mA 2.3W 100 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 161-8273
BrandRS PRO
PHP696.00
Each
units
12V dc - 3A 36W - 1 Chassis Mount Enclosed 99mm 82mm 30mm - - 230g
RS Stock No. 181-2148
BrandRS PRO
PHP6,074.00
1 Tube of 19
Tube(s)
15V dc - 400mA 6W 100 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm - - 31g
RS Stock No. 161-8217
BrandRS PRO
PHP681.00
Each
units
24V dc - 1.1A 26W 88 → 264V ac 1 Chassis Mount Enclosed 85mm 58.5mm 36.5mm - - 250g
RS Stock No. 181-2109
BrandRS PRO
PHP266.00
Each
units
5V dc - 600mA 3W 70 → 420 V dc, 85 → 305 V ac 1 PCB Mount Open Frame 35mm 11mm 18mm - - 6g
Related Products
The RS PRO 200W enclosed power supply is ...
Description:
The RS PRO 200W enclosed power supply is designed with a vented metal casing and screw terminals. This enables easy access and simple installation. It operates on 90VAC to 264VAC voltage supply and up to 3A current rating. It outputs ...
RAC series 2W, universal input, single output AC ...
Description:
RAC series 2W, universal input, single output AC / DC converter power supply with an ultracompact low profile. These universal input, single output AC / DC converters are PCB mounting and have a high efficiency, low standby power and a ...
Single output 250W switch mode AC-DC power supply ...
Description:
Single output 250W switch mode AC-DC power supply with universal input, programmable output voltage and a high efficiency of up to 93%. These switch mode AC-DC power supplies have a compact design are convection cooled and offer a high power ...
30W and 40W single output AC-DC encapsulated PCB ...
Description:
30W and 40W single output AC-DC encapsulated PCB mount power supplies with universal input and a high efficiency of up to 86% (30W) and 87% (40W) These PCB mount AC-DC power modules have an internal input filter, short circuit protection ...