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US 11,489,455 B2Granted
AC and persistent DC co-distritbution
AssigneeEntrantech Inc.
InventorKong-Chen Chen
Life of this patent
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Abstract
An apparatus leverages the existing power interconnect for DC power delivery by including a persistent DC power module into a power panel, thereby enabling a more efficient use of the energy. The persistent DC power module includes, in part, a control unit which is adaptive to the variations and availability of the external DC power source to ensure a constant and consistent delivery of DC voltage. The apparatus minimizes energy waste and e-waste, and is compatible with the existing legacy AC infrastructure.
Claims20
An apparatus adapted to provide a persistent DC power, the apparatus comprising:
- an AC input port coupled to an AC power supply;
- a DC input port coupled to an external DC power, wherein the external DC power is regulated in accordance with a first reference voltage to generate a regulated DC voltage;
- a DC output port;
- an AC-to-DC converter (ADC) adapted to convert the AC power supply to a converted DC voltage in accordance with the first reference voltage;
- and
- a control circuit adapted to monitor the external DC power, said control circuit adapted to:
- enable the regulated DC voltage to be delivered to the DC output port when the external DC power is detected as being higher than a second reference voltage, and
- enable the converted DC voltage to be delivered to the DC output port when the external DC power is detected as being lower than the second reference voltage.
5 more elements
A power panel comprising:
- an AC power input port coupled to phase lines and a neutral line associated with a received AC power;
- a DC power input port coupled to a received DC power;
- a plurality of DC circuit breakers coupled to a plurality of DC power distribution circuits, and
- one or more DC modules each comprising:
- an AC interface input port module coupled to the AC power input port;
- a DC interface input port module coupled to the DC power input port;
- a DC interface output port module coupled to the plurality of DC circuit breakers;
- an AC-to-DC converters (ADC) adapted to convert the received AC power from the AC interface port to one or more converted DC voltages;
- a voltage regulator adapted to convert the received DC power from the DC interface port to a regulated DC voltage;
- and
- a control circuit adapted to:
- couple the regulated DC voltage to and decouple the converted DC voltage from the DC interface output port when the received DC power is detected as being higher than a first reference voltage, wherein the converted DC voltage is at same voltage level as the regulated DC voltage, and
- couple the converted DC voltage to and decouple the regulated DC voltage from the DC interface output port when the received DC power is detected as being lower than the first reference voltage.
10 more elements
Dependencies are inferred from the claim text.