Intelligent electrical power device with monolithic integrated circuit
First Claim
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1. 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.
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Abstract
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.
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Citations
2 Claims
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1. An electrical power arrangement comprising:
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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. - View Dependent Claims (2)
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Specification
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Current AssigneeSGS Microelettronica SpA (STMicroelectronics NV)
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Original AssigneeSGS Microelettronica SpA (STMicroelectronics NV)
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InventorsFaini, Giuseppe
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Primary Examiner(s)Miska, Vit W.
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Application NumberUS06/872,488Time in Patent Office588 DaysField of Search307/18-21, 307/23, 307/43, 307/46-48, 307/64-66, 307/296, 307/297, 307/109, 307/110, 320/1, 323/282, 323/288, 361/92US Class Current307/18CPC Class CodesH03K 17/687 the devices being field-eff...
