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intermediate bus architecture (EV) (IBA)

The Intermediate Bus Architecture (IBA) is a model for the supply of telecommunication boards and systems. In the IBA architecture, which is used in MicroTCA and in industrial process control, the supply voltage of 48 V is fed via a distribution bus.

The supply voltage of 48 V is converted to a regulated 12 V voltage in Intermediate Bus Converters( IBC), which are step-down converters. This is the intermediate bus voltage(IBV). This is then regulated down into stabilized load voltages for the boards in the various PoL converters. In 5.0 V, 3.3 V, 2.5 V and 1.8 V for the supply of the electronic components and chips.

Intermediate Bus Architecture (IBA)

Intermediate Bus Architecture (IBA)

To achieve the best efficiency, the IBA architecture uses two down- conversion stages to achieve an optimal balance between the intermediate bus voltage and the load currents. At low traffic, the efficiency is not sufficiently high. The concept compensates for this disadvantage with Dynamic Bus Voltage( DBV).

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Englisch: intermediate bus architecture (EV) - IBA
Updated at: 02.10.2020
#Words: 151
Links: telecommunication (TC), indium (In), architecture, process, voltage
Translations: DE
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