Circuit configuration for degradation of the stored magnetic energy of a field winding of a generator
AssigneeRobert Bosch GmbH
InventorsWolfgang Mueller, Oliver Luz, Richard Schoettle, David Frey
Life of this patent
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Abstract
Circuit configuration for degradation of the stored magnetic energy of a field winding of a generator, where a battery voltage is applied to the field winding, having a power switch that is in operative connection with the field winding and is controllable by timed pulses from a clock control and which controls the storage and degradation of energy of the field winding. A zener diode is arranged between the field winding and a control input of a power switch for control of the energy degradation of the field winding, in particular of the power switch.
Claims9
A circuit configuration for a degradation of a stored magnetic energy of a field winding of a generator, a battery voltage being applied to the field winding, the circuit configuration comprising:
- a power switch operatively connected to the field winding, the power switch having a control input;
- a clock control for providing timed pulses to the control input of the power switch to control the power switch and to control a storage and a degradation of energy of the field winding;
- and
- a zener diode coupled between the field winding and the control input of the power switch for providing a control of an energy degradation of the field winding and of the power switch.
A process for controlling a circuit configuration, comprising the steps of:
- in a first mode of operation, operating a power switch by timed pulses from a clock control;
- and
- in a second mode of operation, interrupting a clock-pulse operation of the power switch, and sending a voltage applied to a field winding, via a zener diode which is switched in a non-conductive direction relative to the voltage, to a control input of the power switch to control a degradation of a stored energy of the field winding and of the power switch.
Dependencies are inferred from the claim text.