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. 686-0763
Mfr. Part No.EA-PS 805-12-12-80 Triple
MYR2,365.82
Each
units
5/±12V dc - 2.5 A, 16 A 80W 90 → 264V ac 3 Rack Mount Enclosed 162mm 133.5mm 40.64mm - - 640g
RS Stock No. 686-0820
Mfr. Part No.EA-PS 805-12-12-150 Triple
MYR2,493.10
Each
units
5/±12V dc - 2.5 A, 24 A 150W 90 → 264V ac 3 Rack Mount Enclosed 162mm 133.5mm 50.8mm - - 780g
RS Stock No. 686-0741
Mfr. Part No.EA-PS 812-80 Single
MYR1,375.42
Each
units
12V dc - 7.5A 90W 90 → 264V ac 1 Rack Mount Enclosed 162mm 133.5mm 40.64mm - - 640g
RS Stock No. 686-0782
Mfr. Part No.EA-PS 824-150 Single
MYR1,695.15
Each
units
24V dc - 6.3A 150W 90 → 264V ac 1 Rack Mount Enclosed 162mm 133.5mm 50.8mm - - 780g
RS Stock No. 686-0732
Mfr. Part No.EA-PS 805-80 Single
MYR1,375.42
Each
units
5V dc - 16A 80W 90 → 264V ac 1 Rack Mount Enclosed 162mm 133.5mm 40.64mm - - 640g
RS Stock No. 686-0886
Mfr. Part No.EA-PS 805-12-12-240 Triple
MYR3,197.40
Each
units
5/±12V dc - 2.5 A, 30 A 225W 90 → 264V ac 3 Rack Mount Enclosed 162mm 133.5mm 60.96mm - - 930g
RS Stock No. 686-0744
Mfr. Part No.EA-PS 824-80 Single
MYR1,375.42
Each
units
24V dc - 4A 96W 90 → 264V ac 1 Rack Mount Enclosed 162mm 133.5mm 40.64mm - - 640g
RS Stock No. 686-0808
Mfr. Part No.EA-PS 805-24-150 Double
MYR2,063.13
Each
units
5/24V dc - 2.5 A, 24 A 150W 90 → 264V ac 2 Rack Mount Enclosed 162mm 133.5mm 50.8mm - - 780g
RS Stock No. 686-0754
Mfr. Part No.EA-PS 812-24-80 Double
MYR1,958.32
Each
units
12/24V dc - 2.5 A, 7.5 A 80W 90 → 264V ac 2 Rack Mount Enclosed 162mm 133.5mm 40.64mm - - 640g
RS Stock No. 686-0861
Mfr. Part No.EA-PS 812-12-240 Double
MYR2,811.67
Each
units
12V dc - 2.5 A, 16 A 240W 90 → 264V ac 2 Rack Mount Enclosed 162mm 133.5mm 60.96mm - - 930g
RS Stock No. 686-0757
Mfr. Part No.EA-PS 805-24-80 Double
MYR1,833.89
Each
units
5/24V dc - 2.5 A, 16 A 80W 90 → 264V ac 2 Rack Mount Enclosed 162mm 133.5mm 40.64mm - - 640g
RS Stock No. 686-0849
Mfr. Part No.EA-PS 824-240 Single
MYR2,472.74
Each
units
24V dc - 10A 240W 90 → 264V ac 1 Rack Mount Enclosed 162mm 133.5mm 60.96mm - - 930g
RS Stock No. 686-0873
Mfr. Part No.EA-PS 812-24-240 Double
MYR2,796.69
Each
units
12/24V dc - 2.5 A, 16 A 240W 90 → 264V ac 2 Rack Mount Enclosed 162mm 133.5mm 60.96mm - - 930g
RS Stock No. 686-0864
Mfr. Part No.EA-PS 805-24-240 Double
MYR2,796.69
Each
units
5/24V dc - 2.5 A, 30 A 225W 90 → 264V ac 2 Rack Mount Enclosed 162mm 133.5mm 60.96mm - - 930g
RS Stock No. 686-0842
Mfr. Part No.EA-PS 812-240 Single
MYR2,338.22
Each
units
12V dc - 16A 240W 90 → 264V ac 1 Rack Mount Enclosed 162mm 133.5mm 60.96mm - - 930g