Electronic system for field device, has voltage controller via which partial current flows to maintain internal input voltage at preset voltage level, where useful currents driven by useful voltages flow via operating and evaluation circuit

摘要

The system has two voltage controllers providing constantly controlled internal useful voltages at a preset voltage level. A third voltage controller is provided, through which partial current of supply current flows for setting and maintaining an internal input voltage of the system at the voltage level. The useful currents that are driven respectively by the useful voltages flow through an operating and evaluation circuit (50). An independent claim is also included for a field device comprising an electronic system.