Department of Navigation Systems

Optimizing Battery Charger E147 The lifetime and capacity of a battery used in power supply systems strongly depends on the operational  conditions and, in particular, on the charging process. To achieve the maximum usable lifetime, the charging system has to maintain the batteries as fully charged as possible while not overcharging them. Overcharging would result in boiling out of the electrolyte, damaging the batteries. Cybernetica AS has applied special efforts to find  the most efficient methods of charging the batteries  and, as  a result, the  optimizing battery charger E147 was developed. The purpose of the charger is to guarantee continuous energy supply of autonomous and local control systems from 220 V/50 Hz mains and charging in buffering mode the lead or gel based batteries with a parallel  load of up to 100 W, or the operation of the system even without a battery. When optimizing the  charging process the type, nominal voltage, capacity, and the charge factor of the battery as well as temperature of the ambient air are taken into the consideration. The optimization algorithm is executed by a programmable microcontroller. The charger is ready for integration into a remote control and monitoring system for full utilization of its diagnostics capabilities.

Features charging of lead or gel batteries of nominal voltage from 12 up to 18 V in buffering mode, simultaneously supplying power to a parallel load of up to 100W.  The voltage converter of the charger follows the voltage of the battery and optimizes the charging process. The charge factor will be determined by a microcontroller measuring the current, voltage, and temperature of the battery periodical checking discharges and high-current formation of the battery to be initialized either locally by the maintenance  software or remotely by the control and monitoring  system heating of the battery when battery temperature drops below a pre-programmed value (16°C  by default) maintaining the output voltage of the charger on the “holding level” of the battery while operating without a battery connected sending of emergency and diagnostic messages to the control and monitoring system regarding the the mains voltage, state of the battery, temperature,  and  presence of the battery storing of statistical data about the last 16 discontinuities of the mains voltage supply, and about the last 8 changes of battery state

            Technical specifications