10/10/2020
Do medical devices need a special current source that is different from other devices?
Medical devices are sensitive to the output wave form, they do not work _ or at least do not work efficiently _ except with a pure sine wave energy source
There are three types of wave currents:
1. a square sine wave current
2. a sinusoidal simulation wave current
3. a real sine wave current
Although each wave alternates between positive and negative to create a current, the three differ greatly.
The first type; square waves are usually produced by low-level equipment, and despite the cost benefits, they may put pressure on connected equipment that can lead to operating problems.
Cheap UPS devices usually use this technique to reduce price versus quality and negatively affect devices in the long run.
The second type: is a compromise between energy quality and cost with a simulated sine wave. While this wave is still less than ideal, the wave's shape is very similar to a pure sine wave, and therefore, provides a better-quality current.
EAST commercial-oriented interactive UPS units use this simulated sine wave to save utility power for equipment. With good price and high quality.
The third type: the best quality wave is a pure or pure sine wave. This is the ideal wave for both equipment performance and longevity. Power travels smoothly between positive and negative to create the perfect wave and ensure the best quality energy is connected to the equipment. While this wave produced a great and safe performance of sensitive equipment, it comes at a higher cost. E.A.S.T Interactive Units are for Inter (Medical Active) Line.
- And also, devices on the Internet (On Line UPS with / without Isolation transformer) to output a real sine wave.
Therefore, U.P.S devices from E.A.S.T adopt the new (unobtrusive Power Source) as a definition of UPS.
