System to provide AC or DC power to electronic equipment
OwnerRavisekhar Nadimpalli Rajuinventor
Life of this patent
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Abstract
A system and method is provided to provide power to a load or electronic equipment which includes a multi-pole switch that connects the input of the load or electronic equipment to a first AC source or a DC source or an optional second AC source created from the DC source through a DC-AC converter. The connection to the DC source is either direct or through a DC-DC converter that provides voltage adjustment or isolation. A controller changes the position of the switch in response to the sensing of the presence and magnitude of the sources or in response to an external command to select a preferred source.
Claims12
A system providing power to an electronic equipment that has a rectifier stage, wherein the system comprises an AC source, a DC source and a multiple-throw switch, wherein one input terminal of the equipment is connected either to a terminal of the AC source or to a terminal of the DC source through the switch, and wherein a second input terminal of the equipment is concurrently connected to a second terminal of the AC source and a second terminal of the DC source.
A system providing power to an electronic equipment that has a rectifier stage, wherein the system comprises an AC source, a DC source, a DC-DC converter and a multiple-throw switch;
- wherein the DC-DC converter converts the DC source voltage to a second DC voltage level;
- and wherein the switch is used to feed the electronic equipment with AC or DC by connecting one input terminal of the electronic equipment either to one AC source terminal or to one output terminal of the DC-DC converter that is at the second DC voltage level;
- and wherein a second input terminal of the electronic equipment is simultaneously connected to a second terminal of the AC source and a second output terminal of the DC-DC converter.
A system providing power to an electronic equipment wherein the system comprises an AC source, a DC source, a DC-AC converter and a three-position switch;
- wherein the DC-AC converter converts the DC source to an AC output;
- and wherein the switch is used to feed the electronic equipment with AC or DC by connecting the input terminals of the electronic equipment to one of three positions, i.e., the AC source, the DC source or the AC output terminals of the DC-AC converter fed from the DC source.
A system providing power to an electronic equipment wherein the system comprises an AC source, a DC source, a DC-AC converter, a DC-DC converter, and a three-position switch;
- wherein the DC-AC converter converts the DC source to a AC voltage and the DC-DC converter converts the DC source voltage to a second DC voltage level;
- and wherein the switch is used to feed the electronic equipment with AC or DC by connecting the input terminals of the electronic equipment to one of three positions, i.e., the AC source, the output terminals of the DC-AC converter fed from the DC source, or the output terminals of the DC-DC converter fed from the DC source.
A system providing power to an electronic equipment, wherein the system comprises an AC source, a DC source, a converter and a double-throw switch;
- wherein the converter converts the DC source voltage to either an AC or a DC output;
- and wherein the switch is used to feed the electronic equipment with AC or DC by connecting the input terminals of the electronic equipment either to the AC source or to the output terminals of the converter which is controlled to provide either an AC or a DC output for compatibility with the load.
Dependencies are inferred from the claim text.