Bose Corporation

Daniel Scott Pearce

Timothy W Sheen

Michael B Nussbaum

David Charles Gill

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

Power distribution system for 3 phase balanced loads

A multichannel electrical power amplifying system constructed and arranged to distribute electrical power of amount P to a total load coupled thereto. The system includes a plurality n of power amplifier channels, coupling the power amplifying system to a portion of the electrical load. Each of the amplifier channels distributes a portion of the electrical power P to a portion of the electrical load. Each power amplifier channel has a power distribution capacity, at least one of the power amplifier channels having a power distribution capacity significantly greater than The sum of the capacities of the plurality of amplifier channels is significantly greater than P.

Multichannel power amplifying

An audio power amplifier includes a first and a second amplification unit, each including a switching voltage amplifier, an output filter, a current compensator, an inner current feedback loop feeding a measurement of current measured at the output inductor back to a summing input of the current compensator, a voltage compensator coupled to the summing input of the current compensator, and an outer voltage feedback loop. A controlled signal path provides the output of the voltage compensator of the first amplification unit to the current compensator of the second amplification unit. The first and second amplification units are operable with separate loads, in parallel driving a common load, or across a bridge-tied-load. A second pair of amplification units may be added and operated together with the first pair to drive a single speaker with a parallel pair of amplifiers on each side of a bridge-tied-load.

Versatile audio power amplifier

An audio power amplifier with a four-quadrant power supply having a synchronous output rectifier that includes a planar transformer. The amplifier includes a first amplification unit including a switching voltage amplifier with a command signal input and an amplified signal output. Control electronics provide a signal input to the first amplification unit.

Growing community of inventors

Worcester, MA, United States of America

Daniel Scott Pearce