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What application the SMPS used for? PDF 打印 E-mail

Switch mode power supplies are commonly used in computer and other digital systems as well as consumer electronics - particularly TVs and newer VCRs though audio equipment will tend to use linear power supplies due to noise considerations. You will find SMPSs in:

PCs, workstations, minicomputers, large computers.

Laptop and notebook computers, PDAs - both internal DC-DC converters and their AC power packs.

Printers, fax machines, copiers.

Peripheral and expansion boxes

X-terminals and video terminals, point of sale registers.

TVs, computer and video monitors.

Many VCRs.

Camcorder AC adapters.
In additional, you will find DC-DC converters which are SMPSs without the AC line connection, internally in an increasing number of consumer and industrial applications including things like portable CD players.

The up side is that they are usually quite reliable, efficient, and cool running.

The down side is that when a failure occurs, it may take out many parts in the supply, though not usually the equipment being powered unless the feedback circuitry screws up and there is no overvoltage protection.

 
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