Patent ID: 6111453
Filing Date: 2000-08-29
Classification: H03K

Abstract:
A power switching device comprising:a control circuit having an output;a power switching element having a control electrode connected to the output of said control circuit and having a pair of main electrodes; andan inductor connected to one of said pair of main electrodes of said power switching element;said power switching element performing an OFF operation and an ON operation in response to an output of said control circuit to turn off and on a main current flowing across said pair of main electrodes;wherein a path of an OFF driving current, which said control circuit supplies to said control electrode to bring said power switching element to said OFF operation, includes said inductor; said off driving current flowing in the opposite direction as said main current of said power switching element in said inductor; andwherein a path of an ON driving current, which said control circuit supplies to said control electrode to bring said power switching element to said ON operation, excludes said inductor.