Steuerungsvorrichtung für einen Ladegenerator

A short protection circuit is provided to periodically supply a reset pulse, turns on an electric power element only during the period of the reset pulse, and decide the presence and absence of a short circuit under the condition that the electric power transistor is forced to turn off when a field coil is short-circuited. In this short portection circuit, while the field coil is short-circuit, the reset pulse cycle is reduced, and hence the number of times the resetting is made per unit time is reduced, thus preventing the electric power element from generating excessive heat when the field coil is short-circuited.