Adjustable three output DC voltage supply with short circuit protection

An adjustable three output DC voltage supply circuit includes positive and negative DC voltage buses that connect to a DC power source; a first voltage divider connected between the positive and negative DC voltage buses and including a shunt regulator that is connected to the positive DC voltage bu...

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1. Verfasser: Frank Warnes
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An adjustable three output DC voltage supply circuit includes positive and negative DC voltage buses that connect to a DC power source; a first voltage divider connected between the positive and negative DC voltage buses and including a shunt regulator that is connected to the positive DC voltage bus and that provides an intermediate voltage supply; a second voltage divider connected between the positive or the negative DC voltage bus and the intermediate voltage supply and including an output that is connected to a reference input of the shunt regulator; and a short circuit protection component connected in series to a low voltage side of the shunt regulator and configured to limit the current through the shunt regulator in the case of a short circuit to the intermediate voltage supply.