| term |
meaning |
| Alternating Current (AC) |
Electrical current that continuously reverses direction of flow, typically in a periodic fashion. In the United States, standard AC power sources reverse direction sixty times each second (called 60 cycles or 60 Hertz AC). In Europe, the standard is 50 Hertz. |
| AirˇVcooled |
Design that disposed of excess heat without the use of fans or cooling liquids. Air cooled devices often rely on a heat sink to enhance heat dissipation. |
| Ambient Temperature |
The temperature of the environment in which the power supply is operating, e.g., room temperature. |
| Ampere or Amp |
Unit of measure of current flow. At a given point in a circuit an Amp (1A) Equals 1 coulomb of electrons passing in 1 second. |
| American Wire Gauge (AWG) |
A standard used to measure the diameter of a wire conductor. The greater the number , the smaller the wire diameter. House wiring typically contains 12-gauge or 14-gauge solid wire. Digital circuit boards are sometimes modified using small 22-gauge or 28-gauge wires. |
| Ball-bearing Fan |
A cooling fan with a center hub that glides on precision steel balls.Though more expensive, ball-bearing fans typically last longer than fans made with bushings. |
| Bandwidth |
The range of frequencies over which something is measured. Typically used in regard to electromagnetic interference (EMI) testing. |
| Basic Insulation |
The insulation applied to live parts to provide basic protection against electric shock. Does not necessarily include insulation used exclusively for functional purposes. |
| Battery Backup |
A power supply system where if the AC line fails, a battery will provide input energy to keep the DC outputs from failing. Refer to Application Notes section for further details. |
| Burn-in |
Statistically, if an electrical device is going to fail, it will most often occur during its first hours of operation. Some suppliers first operate new electrical products at their factory for a predetermined period to weed out problems before shipment to customers. This process is known as burn-in is conducted with the product under electrical or thermal load, to induce stress and make it easier to identify potential failures. |
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from1 to10 ,totally128 term |
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