Abstract: A power supply for a plurality of electronic modules in a compartment. DC electric current is provided to a plurality of consumer electronic modules on the basis of a perturbed DC voltage exhibiting a wide voltage variation range. The supply device includes a primary supply module and a voltage preregulator able to step up or step down the DC voltage in order to provide the modules with a preregulated voltage exhibiting a small voltage variation range. Each module includes a voltage conversion device for providing the voltages adapted to the needs of the module.

Abstract: A modular architecture for electronic equipment. Data-concentration modules, processing modules and display devices are interconnected by data-transmitters with sensors, measuring instruments and detectors. The data-concentration modules concentrate only the data which is not critical for the industrial process. This data is transmitted to other modules by a multi-receiver serial bus. The other modules directly receive the critical data which is routed by separate, respective serial digital links between, on the one hand, display devices and functions controlling the processes which are distributed in the process modules, and, on the other hand, sensors, measuring instruments and actuators.

Abstract: For supplying DC electric current to a plurality of consumer electronic modules (2 to 4), on the basis of a perturbed DC voltage, exhibiting a wide voltage variation range, the supply device according to the invention comprises a primary supply module (5) comprising voltage preregulating means able to step up or step down the DC voltage in order to provide the modules (2 to 4) with a preregulated voltage exhibiting a small voltage variation range, and, in regard to each module, voltage conversion means (6) providing the voltages adapted to the needs of the module.