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US 2006/0044709 A1Published application
Oring circuit
AssigneeScanpower
InventorOle Seiersen
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AssigneeScanpower
InventorOle Seiersen
Estimating the term…
A method and a circuit comprising an electrically controlled transistor element (303) configured for conveying a current from an input terminal (300) to an output terminal (320), wherein the current is of a magnitude belonging within a pre-determined current range; and a control circuit configured for controlling said transistor element is such a manner that the transistor element (303) is controlled to produce a pre-selected voltage drop across the transistor element independently of the traversing current. Hereby an extremely effective circuit is provided that has high efficiency for transporting large current values form a supply module to a power consuming module and hence the option is provided of substituting the circuit according to the invention in an active system; a so-called hot swap. The circuit can also easily be dimensioned to a desired application by adding a number of transistor elements in parallel.
A circuit configured for coupling a number of power-supplying modules to a common point, wherein the circuit comprises an electronically controlled transistor element configured for conveying a current of a magnitude belonging within a predefined range, a device for detecting the direction of the current, and a control circuit configured for controlling said transistor element in such a manner that a current from the common point to one of said modules can be essentially prevented, characterised in that said transistor element can be controlled in such a manner that a pre-selected voltage drop is produced across the transistor element independently of said current magnitude.
A method of coupling a number of power-supplying modules to a common point, wherein an electronically controlled transistor element conveys a current of a magnitude belonging within a pre-defined range, and wherein the direction of the current is detected, and wherein a current from the common point to said module is essentially prevented, characterised in that said transistor element is controlled in such a manner that a preselected voltage drop is provided across the transistor element independently of said current magnitude.
Dependencies are inferred from the claim text.