Circuit arrangement for preventing the discharge of a battery which can be charged by a charging generator

摘要

The invention relates to a circuit arrangement (charging regulator) for preventing the discharge of a battery which can be charged by a charging generator (1), when the charging generator voltage falls below the battery voltage. For this purpose, a switch (3) is provided in the circuit between the charging generator (1) and the battery (2), on which switch the polarity of the voltage drop is measured by a comparator (4). A clock generator (5) periodically briefly opens the switch (3) during charging so that, during the phase when the switch (3) is open, the comparator (4) compares the battery voltage with the no-load voltage of the charging generator (1). <IMAGE>