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With a MOS power element is associated at least one CMOS pilot circuit supplied by a condenser charged with a voltage taken from the power circuit during the interdiction phases of the power element. The entire device is preferably enclosed in a single monolithic chip except for the condenser which

With a MOS power element is associated at least one CMOS pilot circuit supplied by a condenser charged with a voltage taken from the power circuit during the interdiction phases of the power element. The entire device is preferably enclosed in a single monolithic chip except for the condenser which remains outside.

대표청구항 ▼

An electrical power arrangement comprising: a MOS power element having a gate, source and drain, said source and drain adapted for connection between first and second source potentials, respectively, for supplying an output potential; a CMOS pilot circuit connected to said power element in such a ma

An electrical power arrangement comprising: a MOS power element having a gate, source and drain, said source and drain adapted for connection between first and second source potentials, respectively, for supplying an output potential; a CMOS pilot circuit connected to said power element in such a manner that it can maintain said power element in a conduction state by applying and preserving a potential on said gate; a condenser for supplying a driving potential to said pilot circuit; a charge circuit responsive to said output potential for charging said condenser with said output potential when said power element is in a non-conducting state; and logic means for causing said non-conducting state of said power element when said conduction state of said power element has a duration which exceeds the discharge time of the condenser.