Power distribution system for 3-phase balanced loads

Abstract

The present invention provides a power distribution system, which includes a first speaker and a second speaker. The first speaker includes: (1) a first input terminal for receiving a first power signal; (2) a second input terminal for receiving a second power signal that is phase-shifted by 120 degrees relative to the first signal; (3) a third input terminal for receiving a third power signal that is phase-shifted by 120 degrees relative to both the first signal and the second signal; (4) a first output terminal for transmitting the third power signal; (5) a second output terminal for transmitting the first power signal; (6) a third output terminal for transmitting the second power signal; and (7) a first load coupled to the first input terminal and the second input terminal. The second speaker includes: (1) a first input terminal for receiving the third power signal; (2) a second input terminal for receiving the first power signal; (3) a third input terminal for receiving the second power signal; and (4) a second load coupled to the first input terminal and the second input terminal.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. patent application serial number 16 / 839,269, filed on April 3, 2020, and entitled “Power Distribution System for 3-Phase Balanced Loads,” which is incorporated herein by reference in its entirety. Background Art

[0003] The present disclosure generally relates to systems and methods for power distribution systems for providing improved usage of three-phase power in sound system applications. Summary of the Invention

[0004] The present disclosure generally relates to systems and methods for power distribution systems for providing improved usage of three-phase power in sound system applications.

[0005] In one aspect, a power distribution system is provided. The power distribution system may include a first active audio speaker. The first active audio speaker may include a first input power port. The first input power port may be configured to receive a first distributed power signal. The first distributed power signal may have a first phase.

[0006] The first active audio speaker may include a second input power port. The second input power port may be configured to receive a second distributed power signal. The second distributed power signal may have a second phase. The second phase may be offset by 120 degrees relative to the first phase.

[0007] The first active audio speaker may include a third input power port. The third input power port may be configured to receive a third distributed power signal. The third distributed power signal may have a third phase. The third phase may be offset by 120 degrees relative to both the first phase and the second phase.

[0008] The first active audio speaker may include a first output power port. The first output power port may be electrically coupled to the third input power port. The first output power port may be configured to transmit a third allocated power signal.

[0009] The first active audio speaker may include a second output power port. The second output power port may be electrically coupled to the first input power port. The second output power port may be configured to transmit the first allocated power signal.

[0010] The first active audio speaker may include a third output power port. The third output power port may be electrically coupled to the second input power port. The third output power port may be configured to transmit a second allocated power signal.

[0011] The first active audio speaker may include a first load. The first load may be electrically coupled to the first input power port and the second input power port. According to one example, the first load may be an audio transducer.

[0012] The power distribution system may further include a second active audio speaker. The second active audio speaker may include a first input power port. The first input power port may be electrically coupled to a first output power port of the first active audio speaker. The first input power port may be configured to receive a third distributed power signal.

[0013] The second active audio speaker may include a second input power port. The second input power port may be electrically coupled to the second output power port of the first active audio speaker. The second input power port may be configured to receive the first allocated power signal.

[0014] The second active audio speaker may include a third input power port. The third input power port may be electrically coupled to the third output power port of the first active audio speaker. The third input power port may be configured to receive the second allocated power signal.

[0015] The second active audio speaker may include a second load.The second load may be electrically coupled to the first input power port and the second input power port.

[0016] According to one example, the second active audio speaker may further include a first output power port. The first output power port may be electrically coupled to the third input power port. The first output power port may be configured to transmit the second allocated power signal.

[0017] The second active audio speaker may include a second output power port. The second output power port may be electrically coupled to the first input power port. The second output power port may be configured to transmit a third allocated power signal.

[0018] The second active audio speaker may include a third output power port. The third output power port may be electrically coupled to the second input power port. The third output power port may be configured to transmit the first allocated power signal.

[0019] According to one example, the power distribution system may include a third active audio speaker. The third active audio speaker may include a first input power port. The first input power port may be electrically coupled to a first output power port of the second active audio speaker. The first input power port may be configured to receive a second distributed power signal.

[0020] The third active audio speaker may include a second input power port. The second input power port may be electrically coupled to a second output power port of the second active audio speaker. The second input power port may be configured to receive a third distributed power signal.

[0021] The third active audio speaker may include a third input power port. The third input power port may be electrically coupled to a third output power port of the second active audio speaker. The third input power port may be configured to receive the first allocated power signal.

[0022] The third active audio speaker may include a third load.The third load may be electrically coupled to the first input power port and the second input power port.

[0023] According to one example, the third active audio speaker may include a first output power port. The first output power port may be electrically coupled to the third input power port. The first output power port may be configured to transmit a first allocated power signal.

[0024] The third active audio speaker may include a second output power port. The second output power port may be electrically coupled to the first input power port. The second output power port may be configured to transmit a second allocated power signal.

[0025] The third active audio speaker may include a third output power port. The third output power port may be electrically coupled to the second input power port. The third output power port may be configured to transmit a third allocated power signal.

[0026] According to one example, the power distribution system may include a fourth active audio speaker. The fourth active audio speaker may include a first input power port. The first input power port may be electrically coupled to a first output power port of the third active audio speaker. The first input power port may be configured to receive a first distributed power signal.

[0027] The fourth active audio speaker may include a second input power port. The second input power port may be electrically coupled to the second output power port of the third active audio speaker. The second input power port may be configured to receive a second allocated power signal.

[0028] The fourth active audio speaker may include a third input power port. The third input power port may be electrically coupled to a third output power port of the third active audio speaker. The third input power port may be configured to receive a third allocated power signal.

[0029] The fourth active audio speaker may include a fourth load.The fourth load may be electrically coupled to the first input power port and the second input power port.

[0030] According to one example, the first active audio speaker may include an input audio port. The input audio port may be configured to receive an audio signal. The first active audio speaker may also include an output audio port. The output audio port may be configured to transmit an audio signal.

[0031] According to one example, the second active audio speaker may include an input audio port. The input audio port may be coupled to an output audio port of the first active audio speaker. The input audio port may be configured to receive an audio signal. The second active audio speaker may include an output audio port. The output audio port may be configured to transmit an audio signal.

[0032] According to one example, the third active audio speaker may include an input audio port. The input audio port may be coupled to an output audio port of the second active audio speaker. The input audio port may be configured to receive an audio signal. The third active audio speaker may include an output audio port configured to transmit an audio signal.

[0033] According to one example, the fourth active audio speaker may include an input audio port. The input audio port may be coupled to the output audio port of the third active audio speaker. The input audio port may be configured to receive an audio signal.

[0034] According to one example, the first active audio speaker may include an input ground port configured to receive a ground signal and an output ground port configured to send a ground signal.

[0035] According to one example, the second active audio speaker may include an input ground port. The input ground port may be coupled to an output ground port of the first active audio speaker. The input ground port may be configured to receive a ground signal. The second active audio speaker may include an output ground port. The output ground port may be configured to send a ground signal.

[0036] According to an example, a power distribution system may include a power distribution block. The power distribution block may be configured to generate a first distribution power signal, a second distribution power signal, and a third distribution power signal.

[0037] The power distribution block may include a first main input power port. The first main input power port may be configured to receive a first main power signal. The first main power signal may have a first phase.

[0038] The power distribution block may include a second main input power port. The second main input power port may be configured to receive a second main power signal. The second main power signal may have a second phase. The second phase may be offset by 120 degrees relative to the first phase.

[0039] The power distribution block may include a third main input power port. The third main input power port may be configured to receive a third main power signal. The third main power signal may have a third phase. The third phase may be offset by 120 degrees relative to both the first phase and the second phase.

[0040] The power distribution block may include a first distribution output power port. The first distribution output power port may be electrically coupled to the first main input power port. The first distribution output power port may be configured to send a first distribution power signal to the first input power port of the first active audio speaker.

[0041] The power distribution block may include a second distributed output power port. The second distributed output power port may be electrically coupled to the second main input power port. The second distributed output power port may be configured to send a second distributed power signal to the second input power port of the first active audio speaker.

[0042] The power distribution block may include a third distributed output power port. The third distributed output power port may be electrically coupled to the third main input power port. The third distributed output power port may be configured to send a third distributed power signal to the third input power port of the first active audio speaker.

[0043] According to one example, the power distribution block may include a fourth distributed output power port. The fourth distributed output power port may be electrically coupled to the third main input power port. The fourth distributed output power port may be configured to send a third distributed power signal to the first input power port of the fifth active audio speaker.

[0044] The power distribution block may further include a fifth distribution output power port. The fifth distribution output power port may be electrically coupled to the first main input power port. The fifth distribution output power port may be configured to send the first distribution power signal to the second input power port of the fifth active audio speaker.

[0045] The power distribution block may further include a sixth distribution output power port. The sixth distribution output power port may be electrically coupled to the second main input power port. The sixth distribution output power port may be configured to send a second distribution power signal to the third input power port of the fifth active audio speaker.

[0046] According to one example, the power distribution block may include a main power breaker. The main power breaker may be electrically coupled to at least one of the first main input power port, the second main input power port, or the third main input power port.

[0047] According to one example, the power distribution block may include a distribution power breaker. The distribution power breaker may be electrically coupled to at least one of the first distribution output power port, the second distribution output power port, or the third distribution output power port.

[0048] According to an example, the main signal currents of the first main power signal, the second main power signal, and the third main power signal may be greater than the distributed signal currents of the first distributed power signal, the second distributed power signal, or the third distributed power signal.

[0049] In another aspect, a method for power distribution is provided. The method may include receiving a first distributed power signal at a first input power port of a first active audio speaker. The first distributed power signal may have a first phase. The method may include receiving a second distributed power signal at a second input power port of the first active audio speaker. The second distributed power signal may have a second phase offset by 120 degrees relative to the first phase. The method may also include receiving a third distributed power signal at a third input power port of the first active audio speaker. The third distributed power signal may have a third phase offset by 120 degrees relative to both the first phase and the second phase.

[0050] The method may further include: transmitting a third allocated power signal from a first output power port of the first active audio speaker. The method may further include: transmitting the first allocated power signal from a second output power port of the first active audio speaker. The method may further include: transmitting a second allocated power signal from a third output power port of the first active audio speaker. The first load may be coupled to the first input power port and the second input power port of the first active audio speaker.

[0051] The method may further include receiving a third allocated power signal at a first input power port of a second active audio speaker. The method may further include receiving the first allocated power signal at a second input power port of the second active audio speaker. The method may further include receiving the second allocated power signal at a third input power port of the second active audio speaker. A second load may be coupled to the first input power port and the second input power port of the first active audio speaker.

[0052] According to one example, the method may further include: transmitting a second allocated power signal through a first output power port of a second active audio speaker. The method may further include: transmitting a third allocated power signal through a second output power port of the second active audio speaker. The method may further include: transmitting the first allocated power signal through a third output power port of the second active audio speaker.

[0053] The method may further include receiving a second allocated power signal at a first input power port of a third active audio speaker. The method may further include receiving a third allocated power signal at a second input power port of the third active audio speaker. The method may further include receiving the first allocated power signal at a third input power port of the third active audio speaker. A third load may be coupled to the first input power port and the second input power port of the third active audio speaker.

[0054] According to one example, the method may further include: receiving a first main power signal at a first main input power port of the power distribution block. The first main power signal may have a first phase. The method may further include: receiving a second main power signal at a second main input power port of the power distribution block. The second main power signal may have a second phase that is offset by 120 degrees relative to the first phase. The method may further include: receiving a third distributed power signal at a third main input power port of the power distribution block. The third distributed power signal may have a third phase that is offset by 120 degrees relative to both the first phase and the second phase.

[0055] The method may further include: sending a first distribution power signal from a first distribution output power port of the power distribution block to a first input power port of the first active audio speaker. The method may further include: sending a second distribution power signal from a second distribution output power port of the power distribution block to the first input power port of the first active audio speaker. The method may further include: sending a third distribution power signal from a third distribution output power port of the power distribution block to a third input power port of the first active audio speaker. The method may further include: sending the third distribution power signal from a fourth distribution output power port of the power distribution block to a first input power port of a fourth active audio speaker. The method may further include: sending the first distribution power signal from a fifth distribution output power port of the power distribution block to a first input power port of a fourth active audio speaker. The method may further include: sending a second distribution power signal from a sixth distribution output power port of the power distribution block to a third input power port of the fourth active audio speaker.

[0056] In another aspect, a power distribution system is provided. The power distribution system may include a first active audio speaker. The first active audio speaker may include a first input power port. The first input power port may be configured to receive a first distributed power signal. The first distributed power signal has a first phase.

[0057] The first active audio speaker may include a second input power port. The second input power port may be configured to receive a second distributed power signal. The second distributed power signal may have a second phase. The second phase may be offset by 120 degrees relative to the first phase.

[0058] The first active audio speaker may include a third input power port. The third input power port may be configured to receive a third distributed power signal. The third distributed power signal may have a third phase. The third phase may be offset by 120 degrees relative to both the first phase and the second phase.

[0059] The first active audio speaker may include an input neutral port. The input neutral port may be configured to receive a neutral signal.

[0060] The first active audio speaker may include a first output power port. The first output power port may be electrically coupled to the third input power port. The first output power port may be configured to transmit a third allocated power signal.

[0061] The first active audio speaker may include a second output power port. The second output power port may be electrically coupled to the first input power port. The second output power port may be configured to transmit the first allocated power signal.

[0062] The first active audio speaker may include a third output power port. The third output power port may be electrically coupled to the second input power port. The third output power port may be configured to transmit a second allocated power signal.

[0063] The first active audio speaker may include an output neutral port. The output neutral port may be configured to transmit a neutral signal.

[0064] The first active audio speaker may include a first load. The first load may be electrically coupled to the first input power port and the input neutral port.

[0065] The power distribution system may include a second active audio speaker. The second active audio speaker may include a first input power port. The first input power port may be electrically coupled to a first output power port of the first active audio speaker. The first input power port may be configured to receive a third distributed power signal.

[0066] The second active audio speaker may include a second input power port. The second input power port may be electrically coupled to the second output power port of the first active audio speaker. The second input power port may be configured to receive the first allocated power signal.

[0067] The second active audio speaker may include a third input power port. The third input power port may be electrically coupled to the third output power port of the first active audio speaker. The third input power port may be configured to receive the second allocated power signal.

[0068] The second active audio speaker may include an input neutral port. The input neutral port may be electrically coupled to the output neutral port of the first active audio speaker. The input neutral port may be configured to receive a neutral signal.

[0069] The second active audio speaker may include a second load.The second load may be electrically coupled to the first input power port and the input neutral port.

[0070] The second active audio speaker may include a first output power port. The first output power port may be electrically coupled to the third input power port. The first output power port may be configured to transmit the second allocated power signal.

[0071] The second active audio speaker may include a second output power port. The second output power port may be electrically coupled to the first input power port. The second output power port may be configured to transmit a third allocated power signal.

[0072] The second active audio speaker may include a third output power port. The third output power port may be electrically coupled to the second input power port. The third output power port may be configured to transmit the first allocated power signal.

[0073] The second active audio speaker may include an output neutral port configured to transmit a neutral signal.

[0074] According to one example, the power distribution system may further include a third active audio speaker. The third active audio speaker may include a first input power port. The first input power port may be electrically coupled to a first output power port of the second active audio speaker. The first input power port may be configured to receive the second distributed power signal.

[0075] The third active audio speaker may include a second input power port. The second input power port may be electrically coupled to a second output power port of the second active audio speaker. The second input power port may be configured to receive a third distributed power signal.

[0076] The third active audio speaker may include a third input power port. The third input power port may be electrically coupled to a third output power port of the second active audio speaker. The third input power port may be configured to receive the first allocated power signal.

[0077] The third active audio speaker may include an input neutral port. The input neutral port may be electrically coupled to the output neutral port of the second active audio speaker. The input neutral port may be configured to receive a neutral signal.

[0078] The third active audio speaker may include a third load.The third load may be electrically coupled to the first input power port and the input neutral port.

[0079] The third active audio speaker may include a first output power port. The first output power port may be electrically coupled to the third input power port. The first output power port may be configured to transmit a first allocated power signal.

[0080] The third active audio speaker may include a second output power port. The second output power port may be electrically coupled to the first input power port. The second output power port may be configured to transmit a second allocated power signal.

[0081] The third active audio speaker may include a third output power port. The third output power port may be electrically coupled to the second input power port. The third output power port may be configured to transmit a third allocated power signal.

[0082] The third active audio speaker may include an output neutral port. The output neutral port may be configured to transmit a neutral signal.

[0083] According to one example, the power distribution system may further include a fourth active audio speaker. The fourth active audio speaker may include a first input power port. The first input power port may be electrically coupled to the first output power port of the third active audio speaker. The first input power port may be configured to receive the first distributed power signal.

[0084] The fourth active audio speaker may include a second input power port. The second input power port may be electrically coupled to the second output power port of the third active audio speaker. The second input power port may be configured to receive a second allocated power signal.

[0085] The fourth active audio speaker may include a third input power port electrically coupled to the third output power port of the third active audio speaker.The third input power port may be configured to receive a third distributed power signal.

[0086] The fourth active audio speaker may include an input neutral port. The input neutral port may be electrically coupled to the output neutral port of the third active audio speaker. The input neutral port may be configured to receive a neutral signal.

[0087] The fourth active audio speaker may include a fourth load.The fourth load may be electrically coupled to the first input power port and the input neutral port.

[0088] Other features and advantages will be apparent from the detailed description and from the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] In the drawings, like reference characters generally refer to the same parts throughout the different views. Also, the drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the various examples.

[0090] Figure 1A is the first part of a power distribution schematic diagram according to an example of the present disclosure.

[0091] Figure 1B This is the second part of the power distribution principle diagram according to an example of the present disclosure.

[0092] Figure 2A is the first part of a schematic diagram of power and signal distribution according to an example of the present disclosure.

[0093] Figure 2B is the second part of a power and signal distribution schematic according to an example of the present disclosure.

[0094] Figure 3 is a schematic diagram of power, signal, and control distribution according to an example of the present disclosure.

[0095] Figure 4A is a first portion of an additional power distribution schematic diagram according to an example of the present disclosure.

[0096] Figure 4B is a second part of an additional power distribution schematic diagram according to an example of the present disclosure.

[0097] Figure 5 is a flow chart of a power allocation method according to an example of the present disclosure.

[0098] Figure 6 is a flow chart of a power allocation method according to an additional example of the present disclosure.

[0099] Figure 7 is a flow chart of a power allocation method according to an additional example of the present disclosure. DETAILED DESCRIPTION

[0100] The present disclosure as a whole relates to systems and methods for power distribution systems for providing increased utilization of three-phase power in sound system applications. Professional touring and stadium performances require enormous amounts of electrical power. For these applications, three-phase power is more economical than two-phase (240VAC) or single-phase (120VAC). Three-phase power is most efficient when the loads on the three phases are balanced. Current active speaker or amplifier distribution networks handle this by applying one load (such as a speaker or amplifier) ​​to each phase. Therefore, three loads are required to balance the three phases (one load on each phase). However, due to constraints on speaker size and shipping capacity, many speaker systems are configured to be stacked and installed in groups of four. In many cases, using four stacks in a venue, power is required for a total of sixteen speakers. These groups of four are not balanced using the above-mentioned methods, resulting in imbalances of up to 50%.

[0101] This imbalance can be significantly reduced using a power distribution block and a wired pass-through power solution on each speaker. The power distribution block has a main three-phase power input with a main power circuit breaker rated to handle the overall system needs. The power distribution block includes multiple three-phase power outputs. Each output can be a power circuit breaker rated for the individual stack of four speakers. Each individual speaker can be configured with a three-phase power input and output. The power phase of each of the power outputs on the power distribution block and each output on the active speaker is offset by 120 degrees. Therefore, the phase-shifted configuration requires the use of custom connectors to prevent any confusion or incorrect wiring of the phases to different applications or loads.

[0102] In one aspect, and with reference to Figures 1A to 3 , a power distribution system 10 is provided. As described above, the power distribution system 10 is configured to more efficiently distribute power to a plurality of active speakers. The power distribution system 10 may include a first active audio speaker 100. Figure 1A 1 shows a portion of the components of the first active audio speaker 100. The first active audio speaker 100 can be configured to be stackable. In one example, the first active audio speakers 100 can be configured to be stacked in groups of four. In another example, four groups of four speakers are used (a total of sixteen speakers). In another example, the system 10 can include up to six groups of four speakers (a total of twenty-four speakers). The first active audio speaker 100 can generate sound pressure sufficient to provide adequate sound in a stage, stadium, theater, auditorium, performance hall, house of worship, or any other indoor or outdoor setting where amplified audio is required, either alone or in combination with other active audio speakers. The other active audio speakers of the power distribution system 10 can be similarly configured as the first 100.

[0103] The first active audio speaker 100 can include a first input power port 102. The first input power port 102 can be configured to receive a first distributed power signal 104. The first input power port 102 and any other input and / or output ports described herein can include one or more connectors or adapters adapted to mate with a cable that transmits the power signal. The distributed power signal can originate from a power distribution block 1000. Alternatively, the distributed power signal can originate directly from a site's three-phase power system or be provided by a three-phase generator. The first distributed power signal 104 can have a first phase.

[0104] The first active audio speaker 100 may also include a second input power port 108. The second input power port 108 may be configured to receive a second distributed power signal 110. The second distributed power signal 110 may have a second phase. The second phase may be offset by 120 degrees relative to the first phase. For example, if the first phase is 0 degrees, the second phase may be 120 degrees.

[0105] The first active audio speaker 100 may include a third input power port 114. The third input power port 114 may be configured to receive a third distributed power signal 116. The third distributed power signal 116 may have a third phase. The third phase may be offset by 120 degrees relative to both the first phase and the second phase. For example, if the first phase is 0 degrees and the second phase is 120 degrees, the third phase may be 240 degrees.

[0106] The first active audio speaker 100 may include a first output power port 120. Figure 1A As shown, the first output power port 120 can be electrically coupled to the third input power port 114. The first output power port 120 can be configured to transmit a third distributed power signal 116. This transmission is specified by a power signal path L3 between the first active audio speaker 100 and the second active audio speaker 200. L3 corresponds to the signal received by the third input power port 114 of the first active audio speaker 100.

[0107] The first active audio speaker 100 may include a second output power port 122. Figure 1A As shown, the second output power port 122 can be electrically coupled to the first input power port 102. The second output power port 122 can be configured to transmit the first distributed power signal 104. This transmission is specified by a power signal path L1 between the first active audio speaker 100 and the second active audio speaker 200. L1 corresponds to the signal received by the first input power port 102 of the first active audio speaker 100.

[0108] The first active audio speaker 100 may include a third output power port 124. Figure 1A As shown, the third output power port 124 can be electrically coupled to the second input power port 108. The third output power port 124 can be configured to transmit the second distributed power signal 110. This transmission is specified by the power signal path L2 between the first active audio speaker 100 and the second active audio speaker 200. L2 corresponds to the signal received by the second input power port 108 of the first active audio speaker 100.

[0109] The first active audio speaker 100 may include a first load 126. The first load 126 may be electrically coupled to the first input power port 102 and the second input power port 108. In this configuration, the first load 126 is arranged in a three-phase delta configuration across the first distributed power signal 104 and the second distributed power signal 110. Alternatively, the first load 126 and other speaker loads described herein may be arranged in a three-phase Wye configuration across one of the distributed power signals and a neutral path. The three-phase Wye configuration of the load is described in more detail below and in Figure 4A and Figure 4B . In a typical implementation under US standards, the delta configuration would provide 208VAC across each load. In contrast, the wye configuration would provide 120VAC across each load. Furthermore, the delta configuration is simpler than the wye configuration because it does not require a neutral path. Like the power signal, the neutral path can be similarly distributed to the active audio speakers of system 10, but without phase shifting for safety reasons.

[0110] According to one example, first load 126 or any other load of system 10 can be an audio transducer. The audio transducer can be configured to convert an audio signal received by the load into sound pressure. The load can be any audio transducer actually used in speaker system 10 used in the above-described environment. In other examples, one or more of the loads can be an amplifier. The amplifier can be configured to increase the amplitude of the audio signal received by the speaker.

[0111] The power distribution system 10 may further include a second active audio speaker 100. The second active audio speaker 200 may include a first input power port 202. The first input power port 202 may be electrically coupled to the first output power port 120 of the first active audio speaker 100. The first input power port 202 may be configured to receive the third distributed power signal 116.

[0112] The second active audio speaker 200 may include a second input power port 204. The second input power port 204 may be electrically coupled to the second output power port 122 of the first active audio speaker 100. The second input power port 204 may be configured to receive the first distributed power signal 104.

[0113] The second active audio speaker 200 may include a third input power port 206. The third input power port 206 may be electrically coupled to the third output power port 124 of the first active audio speaker 100. The third input power port 206 may be configured to receive the second distributed power signal 110.

[0114] The second active audio speaker 200 may include a second load 208. The second load 208 may be electrically coupled to the first input power port 202 and the second input power port 204. In this configuration, the second load 208 is arranged in a three-phase delta configuration across the third distributed power signal 116 and the first distributed power signal 104, thereby offsetting the power supplied to the second load 208 relative to the power supplied to the first load 126. As will be described in further detail below, and as Figure 1A and Figure 1B As seen in FIG, the system 10 will cycle through three excursions in the power supplied to the load of the loudspeaker.

[0115] According to one example, the second active audio speaker 200 may further include a first output power port 210. The first output power port 210 may be electrically coupled to the third input power port 206. The first output power port 210 may be configured to transmit the second distributed power signal 110. This transmission is specified by a power signal path L2 between the second active audio speaker 200 and the third active audio speaker 300. L2 corresponds to the signal received by the second input power port 108 of the first active audio speaker 100.

[0116] The second active audio speaker 200 may include a second output power port 212. The second output power port 212 may be electrically coupled to the first input power port 202. The second output power port 212 may be configured to transmit the third distributed power signal 116. This transmission is specified by a power signal path L3 between the second active audio speaker 200 and the third active audio speaker 300. L3 corresponds to the signal received by the third input power port 114 of the first active audio speaker 100.

[0117] The second active audio speaker 200 may include a third output power port 214. The third output power port 214 may be electrically coupled to the second input power port 204. The third output power port 214 may be configured to transmit the first distributed power signal 102. This transmission is specified by a power signal path L1 between the second active audio speaker 200 and the third active audio speaker 300. L1 corresponds to the signal received by the first input power port 102 of the first active audio speaker 100.

[0118] According to an example and reference Figure 1B , the power distribution system 10 can include a third active audio speaker 300. The third active audio speaker 300 can include a first input power port 302. The first input power port 302 can be electrically coupled to the first output power port 210 of the second active audio speaker 200. The first input power port 302 can be configured to receive the second distributed power signal 110.

[0119] The third active audio speaker 300 may include a second input power port 304. The second input power port 304 may be electrically coupled to the second output power port 212 of the second active audio speaker 200. The second input power port 304 may be configured to receive the third distributed power signal 116.

[0120] The third active audio speaker 300 may include a third input power port 306. The third input power port 306 may be electrically coupled to the third output power port 214 of the second active audio speaker 210. The third input power port 306 may be configured to receive the first distributed power signal 104.

[0121] The third active audio speaker 300 may include a third load 308. The third load 308 may be electrically coupled to the first input power port 302 and the second input power port 304. In this configuration, the third load 308 is arranged in a three-phase delta configuration across the second distributed power signal 110 and the third distributed power signal 116, thereby offsetting the power supplied to the third load 308 relative to the power supplied to the first load 126 and the second load 208.

[0122] According to one example, the third active audio speaker 300 may include a first output power port 310. The first output power port 310 may be electrically coupled to the third input power port 306. The first output power port 310 may be configured to transmit the first distributed power signal 104. This transmission is specified by a power signal path L1 between the third active audio speaker 300 and the fourth active audio speaker 400. L1 corresponds to the signal received by the first input power port 102 of the first active audio speaker 100.

[0123] The third active audio speaker 300 may include a second output power port 312. The second output power port 312 may be electrically coupled to the first input power port 302. The second output power port 312 may be configured to transmit the second distributed power signal 108. This transmission is specified by a power signal path L2 between the third active audio speaker 300 and the fourth active audio speaker 400. L2 corresponds to the signal received by the second input power port 108 of the first active audio speaker 100.

[0124] The third active audio speaker 300 may include a third output power port 314. The third output power port 314 may be electrically coupled to the second input power port 304. The third output power port 314 may be configured to transmit the third distributed power signal 116. This transmission is specified by a power signal path L3 between the third active audio speaker 300 and the fourth active audio speaker 400. L3 corresponds to the signal received by the third input power port 114 of the first active audio speaker 100.

[0125] According to an example and reference Figure 1B , the power distribution system 10 can include a fourth active audio speaker 400. The fourth active audio speaker 400 can include a first input power port 402. The first input power port 402 can be electrically coupled to the first output power port 310 of the third active audio speaker 300. The third input power port 402 can be configured to receive the first distributed power signal 104.

[0126] The fourth active audio speaker 400 may include a second input power port 404. The second input power port 404 may be electrically coupled to the second output power port 312 of the third active audio speaker 300. The second input power port 404 may be configured to receive the second distributed power signal 110.

[0127] The fourth active audio speaker 400 may include a third input power port 406. The third input power port 406 may be electrically coupled to the third output power port 314 of the third active audio speaker 300. The third input power port 406 may be configured to receive the third distributed power signal 116.

[0128] The fourth active audio speaker 400 can include a fourth load 408. The fourth load 408 can be electrically coupled to the first input power port 402 and the second input power port 404. In this configuration, the fourth load 408 (like the first load 126 of the first active audio speaker 100) is arranged in a three-phase delta configuration across the first distributed power signal 104 and the second distributed power signal 110. This demonstrates that due to the cyclic nature of the power offset scheme, the first active audio speaker 100 and the fourth active audio speaker 400 will receive and transmit the power signals 104, 110, 116 in the same arrangement.

[0129] In another example, the loads 126 , 208 , 308 , 408 can each be coupled to the second input power port and the third input power port of its corresponding active speaker to achieve phase shifting.

[0130] Alternative configurations of the input and output ports of the active audio speaker can achieve phase shifting. For example, a first input power port can be coupled to a third output power port, a second input power port can be coupled to the first output power port, and the third input power port can be coupled to the second output power port.

[0131] According to an example, and with reference to Figures 2A to 3 , the first active audio speaker 100 may include an input audio port 128. The input audio port 128 may be configured to receive an audio signal 138. The first load 126 may convert the audio 138 into sound pressure. The first load 126 may be configured to amplify the amplitude of the audio signal 138. The audio signal 138 may be provided by the power distribution block 1000. The audio signal 138 may be digital or analog. The first active audio speaker 100 may also include an output audio port 130. The output audio port 130 may be configured to send the audio signal 138. The audio signals and input audio ports and / or output audio ports described herein may conform to the Audio Engineers Society / European Broadcasting Union (AES / EBU) standard. For example, the input audio port and / or the output audio port may include an XLR connector or a BNC connector.

[0132] According to one example, the second active audio speaker 200 can include an input audio port 216. The input audio port 216 can be coupled to the output audio port 130 of the first active audio speaker 100. The input audio port 216 can be configured to receive the audio signal 138. The second active audio speaker 200 can include an output audio port 218. The output audio port 218 can be configured to transmit the audio signal 138.

[0133] According to one example, the third active audio speaker 300 can include an input audio port 316. The input audio port 316 can be coupled to the output audio port 218 of the second active audio speaker 200. The input audio port 316 can be configured to receive the audio signal 138. The third active audio speaker 300 can include an output audio port 318 configured to transmit the audio signal 138.

[0134] According to one example, the fourth active audio speaker 400 may include an input audio port 416. The input audio port 416 may be coupled to the output audio port 318 of the third active audio speaker 300. The input audio port 416 may be configured to receive the audio signal 138. The audio signal 138 may be provided to additional active audio speakers in a similar manner. Figure 3As shown, the control signal can be distributed to the active audio speakers in a similar manner as the audio signal. In another example, the audio signal 138 can include network audio compatible with the DANTE system, the MILAN system, or the AVB system.

[0135] According to one example, and with respect to Figure 1A The first active audio speaker 100 may include an input ground port 132. The input ground port 132 may be configured to receive a ground signal 134. The ground signal 134 may be provided by the power distribution block 1000. The first active audio speaker 100 may also include an output ground port 136 configured to send the ground signal 134.

[0136] According to one example, the second active audio speaker 200 can include an input ground port 220. The input ground port 220 can be coupled to the output ground port 136 of the first active audio speaker 100. The input ground port 220 can be configured to receive the ground signal 134. The second active audio speaker 200 can include an output ground port 222. The output ground port 222 can be configured to transmit the ground signal 134.

[0137] According to an example, and with reference to Figures 1A to 3 The power distribution system 10 may include a power distribution block 1000. The power distribution block 1000 may be configured to connect to the venue's main three-phase power or generator and distribute power to the various stacks of loudspeakers. The power distribution block 1000 may be configured to generate a first distributed power signal 104, a second distributed power signal 110, and a third distributed power signal 116.

[0138] The power distribution block 1000 may include a first main input power port 1002. The first main input power port 1002 may be configured to receive a first main power signal 1004. The first main power signal 1004 may have a first phase.

[0139] The power distribution block 1000 may include a second main input power port 1008. The second main input power port 1008 may be configured to receive a second main power signal 1010. The second main power signal 1010 may have a second phase. The second phase may be offset by 120 degrees relative to the first phase. For example, if the first phase is 0 degrees, the second phase may be 120 degrees.

[0140] The power distribution block 1000 may include a third main input power port 1014. The third main input power port 1014 may be configured to receive a third main power signal 1016. The third main power signal 1016 may have a third phase. The third phase may be offset by 120 degrees relative to both the first phase and the second phase. For example, if the first phase is 0 degrees and the second phase is 120 degrees, the third phase may be 240 degrees.

[0141] The power distribution block 1000 may include a first distribution output power port 1020. Figure 1A As shown, the first distributed output power port 1020 can be electrically coupled to the first main input power port 1002 . The first distributed output power port 1020 can be configured to transmit the first distributed power signal 104 to the first input power port 102 of the first active audio speaker 100 .

[0142] The power distribution block 1000 may include a second distribution output power port 1022. Figure 1A As shown, the second distributed output power port 1022 can be electrically coupled to the second main input power port 1008 . The second distributed output power port 1022 can be configured to transmit the second distributed power signal 110 to the second input power port 108 of the first active audio speaker 100 .

[0143] The power distribution block 100 may include a third distribution output power port 1024. Figure 1A As shown, the third distributed output power port 1024 can be electrically coupled to the third main input power port 1014 . The third distributed output power port 1024 can be configured to transmit a third distributed power signal 116 to the third input power port 114 of the first active audio speaker 100 .

[0144] According to one example, the power distribution block 1000 may include a fourth distribution output power port 1028. Figure 2A As shown, the fourth distributed output power port 1028 can be electrically coupled to the third main input power port 1014 . The fourth distributed output power port 1028 can be configured to transmit the third distributed power signal 116 to the first input power port 502 of the fifth active audio speaker 500 .

[0145] The power distribution block 500 may further include a fifth distribution output power port 1030. The fifth distribution output power port 1030 may be electrically coupled to the first main input power port 1002. The fifth distribution output power port may be configured to transmit the first distribution power signal 104 to the second input power port 504 of the fifth active audio speaker 500.

[0146] The power distribution block 500 may also include a sixth distributed output power port 1032. The sixth distributed output power port 500 may be electrically coupled to the second main input power port 1008. The sixth distributed output power port 1032 may be configured to transmit the second distributed power signal 110 to the third input power port 506 of the fifth active audio speaker 500. Thus, each successive output packet of the power distribution block 1000 is phase shifted relative to the previous packet in a manner similar to that of the speakers.

[0147] According to an example, and as Figure 1A As shown, the power distribution block 1000 can include a main power breaker 1034. The main power breaker 1034 can be electrically coupled to at least one of the first main input power port 1002, the second main input power port 1008, or the third main input power port 1014. The main power breaker 1034 can be arranged to prevent damage to the block 1000 and downstream devices (such as speakers) in the event of a power surge. The main power breaker 1034 can be rated for 60A.

[0148] According to an example, and as Figure 1A As shown, the power distribution block 1000 can include a distribution power circuit breaker 1036. The distribution power circuit breaker 1036 can be electrically coupled to at least one of the first distribution output power port 1020, the second distribution output power port 1022, or the third distribution output power port 1024. The distribution power circuit breaker 1036 can be arranged to prevent damage to downstream devices (such as speakers) in the event of a power surge. The distribution power circuit breaker 1036 can be rated for 10A. Additional distribution power circuit breakers 1036 can be implemented throughout the block 1000.

[0149] According to one example, the main signal current of the first main power signal 1004, the second main power signal 1010, and the third main power signal 1016 can be greater than the distributed signal current of the first distributed power signal 1020, the second distributed power signal 1022, or the third distributed power signal 1024. This relationship can be determined by the number of distributed power output ports connected to the speaker. This relationship can be further reflected by the difference in current rating of the main power circuit breaker 1034 (such as 60A) and the distributed power circuit breaker 1036 (such as 10A).

[0150] On the other hand, and with reference to Figure 4A and Figure 4BA power distribution system 20 is provided. The power distribution system 20 can be configured to supply a load in a Wye configuration. The power distribution system 20 can include a first active audio speaker 100. The first active audio speaker 100 can include a first input power port 102. The first input power port 102 can be configured to receive a first distributed power signal 104. The first distributed power signal 104 has a first phase.

[0151] The first active audio speaker 100 may include a second input power port 108. The second input power port 108 may be configured to receive a second distributed power signal 110. The second distributed power signal 110 may have a second phase. The second phase may be offset by 120 degrees relative to the first phase.

[0152] The first active audio speaker 100 may include a third input power port 114. The third input power port 114 may be configured to receive a third distributed power signal 116. The third distributed power signal 116 may have a third phase. The third phase may be offset by 120 degrees relative to both the first phase and the second phase.

[0153] The first active audio speaker 100 may include an input neutral port 142 . The input neutral port 142 may be configured to receive the neutral signal 140 .

[0154] The first active audio speaker 100 may include a first output power port 120. The first output power port 120 may be electrically coupled to the third input power port 114. The first output power port 120 may be configured to transmit the third distributed power signal 116.

[0155] The first active audio speaker 100 may include a second output power port 122. The second output power port 122 may be electrically coupled to the first input power port 102. The second output power port 122 may be configured to transmit the first distributed power signal 104.

[0156] The first active audio speaker 100 may include a third output power port 124. The third output power port 124 may be electrically coupled to the second input power port 108. The third output power port 124 may be configured to transmit the second distributed power signal 110.

[0157] The first active audio speaker 100 may include an output neutral port 144. The output neutral port 144 may be configured to transmit the neutral signal 140.

[0158] The first active audio speaker 100 may include a first load 126. The first load 126 may be electrically coupled to the first input power port 102 and the input neutral port 140. In one example, the first load 126, or any other load in the system 20, may be an audio transducer. In another example, the first load 126, or any other load in the system 20, may include one or more amplifiers. Figure 4A The first load 126 is shown as two amplifiers: AMP1 and AMP2.

[0159] The power distribution system 20 may include a second active audio speaker 200. The second active audio speaker 200 may include a first input power port 202. The first input power port 202 may be electrically coupled to the first output power port 120 of the first active audio speaker 100. The first input power port 202 may be configured to receive the third distributed power signal 116.

[0160] The second active audio speaker 200 may include a second input power port 204. The second input power port 204 may be electrically coupled to the second output power port 122 of the first active audio speaker 100. The second input power port 204 may be configured to receive the first distributed power signal 104.

[0161] The second active audio speaker 200 may include a third input power port 206. The third input power port 206 may be electrically coupled to the third output power port 124 of the first active audio speaker 100. The third input power port 206 may be configured to receive the second distributed power signal 110.

[0162] The second active audio speaker 200 may include an input neutral port 224. The input neutral port 224 may be electrically coupled to the output neutral port 144 of the first active audio speaker 100. The input neutral port 224 may be configured to receive the neutral signal 140.

[0163] The second active audio speaker 200 may include a second load 208. The second load 208 may be electrically coupled to the first input power port 202 and the input neutral port 224. Figure 4A As shown, the second load 208 may include two amplifiers: AMP1 and AMP2. As will be described in further detail below, and as Figure 4A and Figure 4B As seen in FIG, the system 20 will cycle through three excursions in the power supplied to the load of the loudspeaker.

[0164] The second active audio speaker 200 may include a first output power port 210. The first output power port 210 may be electrically coupled to the third input power port 206. The first output power port 210 may be configured to transmit the second distributed power signal 110.

[0165] The second active audio speaker 200 may include a second output power port 212. The second output power port 212 may be electrically coupled to the first input power port 202. The second output power port 212 may be configured to transmit the third distributed power signal 116.

[0166] The second active audio speaker 200 may include a third output power port 214. The third output power port 214 may be electrically coupled to the second input power port 204. The third output power port 214 may be configured to transmit the first distributed power signal 104.

[0167] The second active audio speaker 200 may include an output neutral port 226 configured to transmit the neutral signal 140 .

[0168] According to one example, the power distribution system 20 may further include a third active audio speaker 300. The third active audio speaker 300 may include a first input power port 320. The first input power port 302 may be electrically coupled to the first output power port 210 of the second active audio speaker 200. The first input power port 302 may be configured to receive the second distributed power signal 110.

[0169] The third active audio speaker 300 may include a second input power port 304. The second input power port 304 may be electrically coupled to the second output power port 212 of the second active audio speaker 200. The second input power port 304 may be configured to receive the third distributed power signal 116.

[0170] The third active audio speaker 300 may include a third input power port 306. The third input power port 306 may be electrically coupled to the third output power port 214 of the second active audio speaker 200. The third input power port 306 may be configured to receive the first distributed power signal 104.

[0171] The third active audio speaker 400 may include an input neutral port 320. The input neutral port 320 may be electrically coupled to the output neutral port 226 of the second active audio speaker 200. The input neutral port 320 may be configured to receive the neutral signal 140.

[0172] The third active audio speaker 400 may include a third load 308. The third load 308 may be electrically coupled to the first input power port 302 and the input neutral port 320. Figure 4B As shown, the third load 308 may include two amplifiers: AMP1 and AMP2.

[0173] The third active audio speaker 300 may include a first output power port 310. The first output power port 310 may be electrically coupled to the third input power port 306. The first output power port 310 may be configured to transmit the first distributed power signal 104.

[0174] The third active audio speaker 300 may include a second output power port 312. The second output power port 312 may be electrically coupled to the first input power port 302. The second output power port 312 may be configured to transmit the second distributed power signal 110.

[0175] The third active audio speaker 300 may include a third output power port 314. The third output power port 314 may be electrically coupled to the second input power port 304. The third output power port 314 may be configured to transmit the third distributed power signal 116.

[0176] The third active audio speaker 300 may include an output neutral port 322 , which may be configured to transmit the neutral signal 140 .

[0177] According to one example, the power distribution system 20 can further include a fourth active audio speaker 400. The fourth active audio speaker 400 can include a first input power port 402. The first input power port 402 can be electrically coupled to the first output power port 310 of the third active audio speaker 300. The third input power port 402 can be configured to receive the first distributed power signal 104.

[0178] The fourth active audio speaker 400 may include a second input power port 404. The second input power port 404 may be electrically coupled to the second output power port 312 of the third active audio speaker 300. The second input power port 404 may be configured to receive the second distributed power signal 110.

[0179] The fourth active audio speaker 400 may include a third input power port 406. The third input power port 406 may be electrically coupled to the third output power port 314 of the third active audio speaker 300. The third input power port 406 may be configured to receive the third distributed power signal 116.

[0180] The fourth active audio speaker 400 may include an input neutral port 410. The input neutral port 410 may be electrically coupled to the output neutral port 322 of the third active audio speaker 300. The input neutral port 410 may be configured to receive the neutral signal 140.

[0181] The fourth active audio speaker 400 may include a fourth load 408. The fourth load 408 may be electrically coupled to the first input power port 402 and the input neutral port 410. Figure 4B As shown, the fourth load 408 may include two amplifiers: AMP1 and AMP2.

[0182] On the other hand, and with reference to Figures 5 to 7 , a method 900 for power distribution is provided. The method 900 may include receiving 902 a first distribution power signal at a first input power port of a first active audio speaker. The first distribution power signal may have a first phase. The method 900 may include receiving 904 a second distribution power signal at a second input power port of the first active audio speaker. The second distribution power signal may have a second phase that is offset by 120 degrees relative to the first phase. The method 900 may also include receiving 906 a third distribution power signal at a third input power port of the first active audio speaker. The third distribution power signal may have a third phase that is offset by 120 degrees relative to both the first phase and the second phase.

[0183] The method 900 may also include transmitting 908 a third allocated power signal via a first output power port of the first active audio speaker. The method 900 may also include transmitting 910 the first allocated power signal via a second output power port of the first active audio speaker. The method 900 may also include transmitting 912 a second allocated power signal via a third output power port of the first active audio speaker. The first load may be coupled to the first input power port and the second input power port of the first active audio speaker.

[0184] The method 900 may also include receiving 914 a third allocated power signal at a first input power port of a second active audio speaker. The method 900 may also include receiving 916 the first allocated power signal at a second input power port of the second active audio speaker. The method 900 may also include receiving 918 a second allocated power signal at a third input power port of the second active audio speaker. A second load may be coupled to the first input power port and the second input power port of the first active audio speaker.

[0185] According to one example, the method 900 may further include: transmitting 920 a second allocated power signal through the first output power port of the second active audio speaker. The method 900 may further include: transmitting 922 a third allocated power signal through the second output power port of the second active audio speaker. The method 900 may further include: transmitting 924 the first allocated power signal through the third output power port of the second active audio speaker.

[0186] The method 900 may also include receiving 926 a second allocated power signal at a first input power port of a third active audio speaker. The method 900 may also include receiving 928 a third allocated power signal at a second input power port of the third active audio speaker. The method 900 may also include receiving 930 the first allocated power signal at a third input power port of the third active audio speaker. A third load may be coupled to the first input power port and the second input power port of the third active audio speaker.

[0187] According to one example, method 900 may further include receiving 932 a first main power signal at a first main input power port of the power distribution block. The first main power signal may have a first phase. Method 900 may further include receiving 934 a second main power signal at a second main input power port of the power distribution block. The second main power signal may have a second phase that is offset by 120 degrees relative to the first phase. Method 900 may further include receiving 936 a third distributed power signal at a third main input power port of the power distribution block. The third distributed power signal may have a third phase that is offset by 120 degrees relative to both the first phase and the second phase.

[0188] The method 900 may further include: sending 938 a first distribution power signal from the first distribution output power port of the power distribution block to the first input power port of the first active audio speaker. The method 900 may further include: sending 940 a second distribution power signal from the second distribution output power port of the power distribution block to the first input power port of the first active audio speaker. The method 900 may further include: sending 942 a third distribution power signal from the third distribution output power port of the power distribution block to the third input power port of the first active audio speaker. The method 900 may further include: sending 944 a third distribution power signal from the fourth distribution output power port of the power distribution block to the first input power port of the fourth active audio speaker. The method 900 may further include: sending 946 the first distribution power signal from the fifth distribution output power port of the power distribution block to the first input power port of the fourth active audio speaker. The method 900 may further include: sending 948 a second distribution power signal from the sixth distribution output power port of the power distribution block to the third input power port of the fourth active audio speaker.

[0189] All definitions, as defined and used herein, should be understood to encompass dictionary definitions, definitions in documents incorporated by reference, and / or ordinary meanings of the defined terms.

[0190] Unless explicitly stated to the contrary, the indefinite articles "a" and "an" as used herein in the specification and claims should be understood to mean "at least one".

[0191] As used herein in the specification and claims, the phrase "and / or" should be understood to mean "either one or both of the elements so combined," i.e., the elements being present in some cases combined and in other cases separated. Multiple elements listed with "and / or" should be interpreted in the same manner, i.e., "one or more of the elements so combined." Other elements may optionally be present in addition to the elements explicitly identified by the "and / or" clause, whether related or unrelated to those elements explicitly identified.

[0192] As used herein in the specification and claims, "or" should be understood to have the same meaning as "and / or" as defined above. For example, when separating items in a list, "or" or "and / or" should be understood to be inclusive, i.e., include at least one element and more than one element in a plurality of elements or element lists, and optional additional unlisted items. Only the terms clearly indicated to the contrary (such as "only one in ... or "just one in ... or "consisting of ... (when used in the claims)) will refer to including just one element in a plurality of elements or element lists. Generally speaking, when it is followed by an exclusive term (such as "any one," "one in ...," "only one in ... or "just one in ..."), the term "or" as used herein should only be understood to indicate exclusive alternatives (that is, "one or another but not two").

[0193] As used herein in the specification and claims, the phrase "at least one" (with respect to a list of one or more elements) should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but does not necessarily include at least one element of each element specifically listed in the list of elements, and does not exclude any combination of elements in the list of elements. This definition also allows that elements may optionally be present other than the elements explicitly identified in the list of elements to which the phrase "at least one" refers, whether related or unrelated to those elements explicitly identified.

[0194] It should also be understood that in any method claimed herein that includes more than one step or action, the order of the method steps or actions is not necessarily limited to the order in which the method steps or actions are recited unless explicitly stated to the contrary.

[0195] In the claims and the foregoing description, all transitional phrases (such as "comprising," "including," "carrying," "having," "containing," "involving," "containing," "composed of," etc.) are to be understood as open-ended, i.e., meaning including but not limited to. Only the transitional phrases "consisting of" and "consisting essentially of" are to be considered closed or semi-closed transitional phrases, respectively.

[0196] The above examples of the described subject matter can be implemented in any of a variety of ways. For example, some aspects can be implemented using hardware, software, or a combination thereof. When any aspect is implemented at least in part in software, the software code can be executed on any suitable processor or collection of processors, whether provided in a single device or single computer or distributed among multiple devices / computers.

[0197] The present disclosure may be implemented as a system, method, and / or computer program product at any possible level of technical detail integration. The computer program product may include one (or more) computer-readable storage media having computer-readable program instructions thereon for causing a processor to perform various aspects of the present disclosure.

[0198] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. An incomplete list of more specific examples of computer-readable storage media includes the following: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device (such as a punched card or raised structure in a groove with instructions recorded thereon), and any suitable combination of the foregoing. As used herein, a computer-readable storage medium should not be understood as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated through a waveguide or other transmission medium (e.g., a light pulse passing through a fiber optic cable), or an electrical signal transmitted through a wire.

[0199] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to a corresponding computing / processing device via a network (e.g., the Internet, a local area network, a wide area network, and / or a wireless network), or downloaded to an external computer or external storage device. The network can include copper transmission cables, optical transmission fibers, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in a computer-readable storage medium in the corresponding computing / processing device.

[0200] The computer-readable program instructions for performing the operations of the present disclosure may be any of assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, configuration data for an integrated circuit, or source code or object code written in any combination of one or more programming languages ​​(including: object-oriented programming languages ​​such as Smalltalk, C++, etc.; and procedural programming languages ​​such as the "C" programming language or similar programming languages). The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer, partially on a remote computer, or entirely on a remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., over the Internet using an Internet service provider). In some examples, electronic circuits including, for example, programmable logic circuits, field programmable gate arrays (FPGAs), or programmable logic arrays (PLAs) may execute computer-readable program instructions to perform aspects of the present disclosure by personalizing the electronic circuits using state information of the computer-readable program instructions.

[0201] Various aspects of the present disclosure are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to examples of the present disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0202] Computer-readable program instructions can be provided to a processor of a special-purpose computer or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device create a device for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, which can direct the computer, programmable data processing device and / or other equipment to function in a specific manner, such that the computer-readable storage medium having the instructions stored therein comprises an article of manufacture, which includes instructions for implementing various aspects of the functions / actions specified in the flowchart and / or block diagram or block.

[0203] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus, or other device to produce a computer-implemented process, such that the instructions executed on the computer, other programmable apparatus, or other device implement the functions / actions specified in one or more boxes of the flowchart and / or block diagram.

[0204] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functions and operations of possible specific implementations of the systems, methods and computer program products of various examples of the present disclosure. In this regard, each box in the flowchart or block diagram may represent an instruction module, an instruction fragment or an instruction portion, which includes one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions described in the box can occur in a different order than described in the accompanying drawings. For example, depending on the functions involved, two boxes shown in succession may actually be executed substantially simultaneously, or the boxes may sometimes be executed in the opposite order. Each box in the block diagram and / or flowchart illustration and the combination of boxes in the block diagram and / or flowchart illustration may be implemented by a dedicated hardware-based system that performs a specified function or action or executes a combination of dedicated hardware and computer instructions.

[0205] Other implementations are within the scope of the following claims and other claims to which the applicant may be entitled.

[0206] Although various examples have been described and illustrated herein, a person of ordinary skill in the art will readily envision a variety of other devices and / or structures for performing the functions described herein and / or achieving one or more of the results and / or advantages described herein, and each of such variations and / or modifications is considered within the scope of the examples described herein. More generally, a person of ordinary skill in the art will readily understand that all parameters, dimensions, materials, and configurations described herein are intended to be exemplary, and that actual parameters, dimensions, materials, and / or configurations will depend on the specific application or applications in which the teachings of the present invention are used. A person of ordinary skill in the art will recognize or be able to ascertain, using only routine experimentation, many equivalents to the specific examples described herein. Therefore, it should be understood that the foregoing embodiments are presented by way of example only, and that, within the scope of the appended claims and their equivalents, the examples may be practiced otherwise than as specifically described and claimed. Examples of the present disclosure relate to each individual feature, system, article, material, kit, and / or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and / or methods is included within the scope of the present disclosure, provided that such features, systems, articles, materials, kits, and / or methods are not mutually inconsistent.

Claims

1. A method for power distribution, the method comprising: receiving a first distributed power signal by a first input power port of a first active audio speaker, wherein the first distributed power signal has a first phase; receiving a second distributed power signal at a second input power port of the first active audio speaker, wherein the second distributed power signal has a second phase that is offset by 120 degrees relative to the first phase; receiving a third distributed power signal by a third input power port of the first active audio speaker, wherein the third distributed power signal has a third phase that is offset by 120 degrees relative to both the first phase and the second phase; sending the third distributed power signal through the first output power port of the first active audio speaker; sending the first distributed power signal through the second output power port of the first active audio speaker; sending the second distributed power signal from a third output power port of the first active audio speaker, wherein a first load is coupled to the first input power port and the second input power port of the first active audio speaker; Receiving, by a first input power port of a second active audio speaker, the third distributed power signal transmitted by the first output power port of the first active audio speaker; receiving, by a second input power port of the second active audio speaker, the first distributed power signal transmitted by the second output power port of the first active audio speaker; as well as The second distributed power signal transmitted by the third output power port of the first active audio speaker is received by the third input power port of the second active audio speaker, wherein a second load is coupled to the first input power port and the second input power port of the second active audio speaker.

2. The method for power distribution according to claim 1, further comprising: sending the second distributed power signal through the first output power port of the second active audio speaker; sending the third distributed power signal through the second output power port of the second active audio speaker; sending the first distributed power signal through a third output power port of the second active audio speaker; receiving, by a first input power port of a third active audio speaker, the second distributed power signal transmitted by the first output power port of the second active audio speaker; receiving, by a second input power port of the third active audio speaker, the third distributed power signal transmitted by the second output power port of the second active audio speaker; as well as The first distributed power signal transmitted by the third output power port of the second active audio speaker is received by the third input power port of the third active audio speaker, wherein a third load is coupled to the first input power port and the second input power port of the third active audio speaker.

3. The method for power distribution according to claim 2, further comprising: receiving, by a first main input power port of a power distribution block, a first main power signal, wherein the first main power signal has a first phase; receiving, by a second main input power port of the power distribution block, a second main power signal, wherein the second main power signal has a second phase that is offset by 120 degrees relative to the first phase; receiving, by a third main input power port of the power distribution block, a third main power signal, wherein the third main power signal has a third phase that is offset by 120 degrees relative to both the first phase and the second phase; sending, by the first distributed output power port of the power distribution block, the first distributed power signal to the first input power port of the first active audio speaker; sending the second distributed power signal from the second distributed output power port of the power distribution block to the second input power port of the first active audio speaker; sending the third distributed power signal from the third distributed output power port of the power distribution block to the third input power port of the first active audio speaker; sending the third distributed power signal from the fourth distributed output power port of the power distribution block to the first input power port of a fourth active audio speaker; sending the first distributed power signal from the fifth distributed output power port of the power distribution block to the second input power port of the fourth active audio speaker; as well as The second distributed power signal is sent from the sixth distributed output power port of the power distribution block to the third input power port of the fourth active audio speaker.

4. A power distribution system, comprising: A first active audio speaker, the first active 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 that is offset by 120 degrees relative to 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 that is offset by 120 degrees relative to 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 allocated 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 active audio speaker, the second active audio speaker comprising: a first input power port electrically coupled to the first output power port of the first active 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 active 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 active audio speaker and configured to receive the second distributed power signal; and A second load is electrically coupled to the first input power port of the second active audio speaker and to the second input power port of the second active audio speaker.

5. The power distribution system of claim 4, wherein the second active audio speaker further comprises: a first output power port electrically coupled to the third input power port of the second active audio speaker and configured to transmit the second distributed power signal; a second output power port electrically coupled to the first input power port of the second active audio speaker and configured to transmit the third distributed power signal; and A third output power port is electrically coupled to the second input power port of the second active audio speaker and is configured to transmit the first distributed power signal.

6. The power distribution system according to claim 5, further comprising: a third active audio speaker, the third active audio speaker comprising: a first input power port electrically coupled to the first output power port of the second active audio speaker and configured to receive the second distributed power signal; a second input power port electrically coupled to the second output power port of the second active audio speaker and configured to receive the third distributed power signal; a third input power port electrically coupled to the third output power port of the second active audio speaker and configured to receive the first distributed power signal; and A third load is electrically coupled to the first input power port of the third active audio speaker and the second input power port of the third active audio speaker.

7. The power distribution system of claim 6, wherein the third active audio speaker further comprises: a first output power port electrically coupled to the third input power port of the third active audio speaker and configured to transmit the first distributed power signal; a second output power port electrically coupled to the first input power port of the third active audio speaker and configured to transmit the second distributed power signal; and A third output power port is electrically coupled to the second input power port of the third active audio speaker and is configured to transmit the third distributed power signal.

8. The power distribution system according to claim 7, further comprising: a fourth active audio speaker, the fourth active audio speaker comprising: a first input power port electrically coupled to the first output power port of the third active audio speaker and configured to receive the first distributed power signal; a second input power port electrically coupled to the second output power port of the third active audio speaker and configured to receive the second distributed power signal; a third input power port electrically coupled to the third output power port of the third active audio speaker and configured to receive the third distributed power signal; and A fourth load is electrically coupled to the first input power port of the fourth active audio speaker and the second input power port of the fourth active audio speaker.

9. The power distribution system of claim 4, wherein the first active audio speaker comprises: an input audio port configured to receive an audio signal; and An output audio port is configured to transmit the audio signal.

10. The power distribution system of claim 9, wherein the second active audio speaker comprises: an input audio port coupled to the output audio port of the first active audio speaker and configured to receive the audio signal; and An output audio port is configured to transmit the audio signal.

11. The power distribution system of claim 6, wherein the third active audio speaker comprises: an input audio port coupled to the output audio port of the second active audio speaker and configured to receive the audio signal; and An output audio port is configured to transmit the audio signal.

12. The power distribution system of claim 8, wherein the fourth active audio speaker comprises an input audio port coupled to the output audio port of the third active audio speaker and configured to receive the audio signal.

13. The power distribution system of claim 4, wherein the first load is an audio transducer.

14. The power distribution system of claim 4, wherein the first active audio speaker comprises: an input ground port configured to receive a ground signal; and An output ground port is configured to send the ground signal.

15. The power distribution system of claim 14, wherein the second active audio speaker comprises: an input ground port coupled to the output ground port of the first active audio speaker and configured to receive the ground signal; and An output ground port is configured to send the ground signal.

16. The power distribution system according to claim 4, further comprising: A power distribution block configured to generate the first distributed power signal, the second distributed power signal, and the third distributed power signal, the power distribution block comprising: a first main input power port configured to receive a first main power signal, wherein the first main power signal has a first phase; a second main input power port configured to receive a second main power signal, wherein the second main power signal has a second phase that is offset by 120 degrees relative to the first phase; a third main input power port configured to receive a third main power signal, wherein the third main power signal has a third phase that is offset by 120 degrees relative to both the first phase and the second phase; a first distributed output power port electrically coupled to the first main input power port and configured to transmit the first distributed power signal to the first input power port of the first active audio speaker; a second distributed output power port electrically coupled to the second main input power port and configured to transmit the second distributed power signal to the second input power port of the first active audio speaker; and A third distributed output power port is electrically coupled to the third main input power port and is configured to transmit the third distributed power signal to the third input power port of the first active audio speaker.

17. The power distribution system of claim 16, wherein the power distribution block further comprises: a fourth distributed output power port electrically coupled to the third main input power port and configured to transmit the third distributed power signal to the first input power port of a fifth active audio speaker; a fifth distributed output power port electrically coupled to the first main input power port and configured to transmit the first distributed power signal to a second input power port of the fifth active audio speaker; and A sixth distributed output power port is electrically coupled to the second main input power port and is configured to transmit the second distributed power signal to the third input power port of the fifth active audio speaker.

18. A power distribution system, comprising: A first active audio speaker, the first active 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 that is offset by 120 degrees relative to 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 that is offset by 120 degrees relative to 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 allocated 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 active audio speaker, the second active audio speaker comprising: a first input power port electrically coupled to the first output power port of the first active 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 active 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 active 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 active audio speaker and configured to receive the neutral signal; and a second load electrically coupled to the first input power port of the second active audio speaker and the input neutral port of the second active audio speaker; a first output power port electrically coupled to the third input power port of the second active audio speaker and configured to transmit the second distributed power signal; a second output power port electrically coupled to the first input power port of the second active audio speaker and configured to transmit the third distributed power signal; a third output power port electrically coupled to the second input power port of the second active audio speaker and configured to transmit the first distributed power signal; and An output neutral port is configured to transmit the neutral signal.

19. The power distribution system according to claim 18, further comprising: a third active audio speaker, the third active audio speaker comprising: a first input power port electrically coupled to the first output power port of the second active audio speaker and configured to receive the second distributed power signal; a second input power port electrically coupled to the second output power port of the second active audio speaker and configured to receive the third distributed power signal; a third input power port electrically coupled to the third output power port of the second active audio speaker and configured to receive the first distributed power signal; an input neutral port electrically coupled to the output neutral port of the second active audio speaker and configured to receive the neutral signal; a third load electrically coupled to the first input power port of the third active audio speaker and the input neutral port of the third active audio speaker; a first output power port electrically coupled to the third input power port of the third active audio speaker and configured to transmit the first distributed power signal; a second output power port electrically coupled to the first input power port of the third active audio speaker and configured to transmit the second distributed power signal; a third output power port electrically coupled to the second input power port of the third active audio speaker and configured to transmit the third distributed power signal; and An output neutral port is configured to transmit the neutral signal.

20. The power distribution system according to claim 19, further comprising: a fourth active audio speaker, the fourth active audio speaker comprising: a first input power port electrically coupled to the first output power port of the third active audio speaker and configured to receive the first distributed power signal; a second input power port electrically coupled to the second output power port of the third active audio speaker and configured to receive the second distributed power signal; a third input power port electrically coupled to the third output power port of the third active audio speaker and configured to receive the third distributed power signal; an input neutral port electrically coupled to the output neutral port of the third active audio speaker and configured to receive the neutral signal; and A fourth load is electrically coupled to the first input power port of the fourth active audio speaker and the input neutral port of the fourth active audio speaker.

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