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.
Description:
The PBW series of switch mode power supplies
(SMPS) from Cosel are a compact, lightweight solution. PBW switching power supplies feature a universal rated input of 85 V ac to 264 V ac making them a versatile solution. Harmonic attenuator ...
Description:
The PBA series of switch mode power supplies
from Cosel are lightweight and incredibly compact. They are 35% to 65% smaller in volume than conventional products of the same type. With a universal input of 85 V ac to 264 ...
Description:
From Mean Well, the IRM-30 Series of encapsulated
AC-DC power supplies are constructed from a 94V-0 flame retardant plastic case and fully potted silicone. The construction meets anti-vibration demand up to 5G and provides resistance to dust and moisture while ...
