US 2021/0314026 A1Published application

Power distribution system for 3 phase balanced loads

AssigneeBose Corporation

InventorsDavid C. Gill, Daniel S. Pearce

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Abstract

A power distribution system including a first and second speaker is provided. The first speaker includes (1) a first input receiving a first power signal; (2) a second input receiving a second power signal phase shifted 120 degrees from the first signal; (3) a third input receiving a third power signal phase shifted 120 degrees from both the first and second signal; (4) a first output transmitting the third power signal; (5) a second output transmitting the first power signal; (6) a third output transmitting the second power signal; and (7) a first load coupled to the first and second input. The second speaker includes (1) a first input receiving the third power signal; (2) a second input receiving the first power signal; (3) a third input receiving the second power signal; and (4) a second load coupled to the first and second input.

Claims20

Dependent claims

A method for power distribution, comprising:

receiving, by a first input power port of a first powered audio speaker, a first distributed power signal, wherein the first distributed power signal has a first phase;
receiving, by a second input power port of the first powered audio speaker, a second distributed power signal, wherein the second distributed power signal has a second phase shifted 120 degrees from the first phase;
receiving, by a third input power port of the first powered audio speaker, a third distributed power signal, wherein the third distributed power signal has a third phase shifted 120 degrees from both the first phase and the second phase;
transmitting, by a first output power port of the first powered audio speaker, the third distributed power signal;
transmitting, by a second output power of the first powered audio speaker, the first distributed power signal;
transmitting, by a third output power port of the first powered audio speaker, the second distributed power signal, wherein a first load is coupled to the first and second input power ports of the first powered audio speaker;
receiving, by a first input power port of the second powered audio speaker, the third distributed power signal;
receiving, by a second input power port of the second powered audio speaker, the first distributed power signal;
and
receiving, by a third input power port of the second powered audio speaker, the second distributed power signal, wherein a second load is coupled to the first and second input power ports of the first powered audio speaker.

7 more elements

A power distribution system, comprising:

a first powered audio speaker, comprising:
a first input power port configured to receive a first distributed power signal, wherein the first distributed power signal has a first phase;
a second input power port configured to receive a second distributed power signal, wherein the second distributed power signal has a second phase shifted 120 degrees from the first phase;
a third input power port configured to receive a third distributed power signal, wherein the third distributed power signal has a third phase shifted 120 degrees from both the first phase and the second phase;
a first output power port electrically coupled to the third input power port and configured to transmit the third distributed power signal;
a second output power port electrically coupled to the first input power port and configured to transmit the first distributed power signal;
a third output power port electrically coupled to the second input power port and configured to transmit the second distributed power signal;
and
a first load electrically coupled to the first input power port and the second input power port;
and
a second powered audio speaker, comprising:
a first input power port electrically coupled to the first output power port of the first powered audio speaker and configured to receive the third distributed power signal;
a second input power port electrically coupled to the second output power port of the first powered audio speaker and configured to receive the first distributed power signal;
a third input power port electrically coupled to the third output power port of the first powered audio speaker and configured to receive the second distributed power signal;
and
a second load electrically coupled to the first input power port and the second input power port.

13 more elements

A power distribution system, comprising:

a first powered audio speaker, comprising:
a first input power port configured to receive a first distributed power signal, wherein the first distributed power signal has a first phase;
a second input power port configured to receive a second distributed power signal, wherein the second distributed power signal has a second phase shifted 120 degrees from the first phase;
a third input power port configured to receive a third distributed power signal, wherein the third distributed power signal has a third phase shifted 120 degrees from both the first phase and the second phase;
an input neutral port configured to receive a neutral signal;
a first output power port electrically coupled to the third input power port and configured to transmit the third distributed power signal;
a second output power port electrically coupled to the first input power port and configured to transmit the first distributed power signal;
a third output power port electrically coupled to the second input power port and configured to transmit the second distributed power signal;
an output neutral port configured to transmit the neutral signal;
and
a first load electrically coupled to the first input power port and the input neutral port;
and
a second powered audio speaker, comprising:
a first input power port electrically coupled to the first output power port of the first powered audio speaker and configured to receive the third distributed power signal;
a second input power port electrically coupled to the second output power port of the first powered audio speaker and configured to receive the first distributed power signal;
a third input power port electrically coupled to the third output power port of the first powered audio speaker and configured to receive the second distributed power signal;
an input neutral port electrically coupled to the output neutral port of the first powered audio speaker and configured to receive the neutral signal;
and
a second load electrically coupled to the first input power port and the input neutral port;
a first output power port electrically coupled to the third input power port and configured to transmit the second distributed power signal;
a second output power port electrically coupled to the first input power port and configured to transmit the third distributed power signal;
a third output power port electrically coupled to the second input power port and configured to transmit the first distributed power signal;
and
an output neutral port configured to transmit the neutral signal.

21 more elements

Dependencies are inferred from the claim text.