SMPS means Switch Mode Power Supply.As the name suggests it is used to switch the Alternating Current(AC) voltage into Direct current (DC) voltage which is required for our computer systems to work.It is placed inside the C.P.U of our computer and from this SMPS connections are given to the CD/DVD drive,Hard disk and to all parts of the computer.
Function of SMPS is similar to the transformers that are seen on the streets near our houses.These transformers also convert AC into DC voltage and supply it to our houses.But we cannot place a transformer in our computers as space occupied is too large.So,SMPS are introduced in the place of transformers.It is very efficient and very low heat is produced by this.
in general it is highly reliable and can guarantee you an efficient work up to 5 years.But if there is any fluctuation in your power line that will directly effect your SMPS and it may be damaged.
Hope you got required information about SMPS you needed.
A switched-mode power supply, or SMPS, is an electronic power supply unit (PSU) that incorporates a switching regulator — an internal control circuit that switches the load current rapidly on and off in order to stabilise the output voltage. Switching regulators are used as replacements for simpler linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated and more expensive, their switching currents can cause noise problems if not carefully suppressed, and simple designs can have a poor power factor.
SMPS can also be classified into four types according to the input and output waveforms, as follows.
AC in, DC out: rectifier, off-line converter
DC in, DC out: voltage converter, or current converter, or DC to DC converter
AC in, AC out: frequency changer, cycloconverter
DC in, AC out: inverter
AC and DC are abbreviations for alternating current and direct current.
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