Abstract: A time of flight sensor includes a time of flight (TOF) processor having a digital TOF port, a digital input port, and a digital output port, the TOF processor comprising a phase detector including cyclically rotating demultiplexer (DEMUX), a first summer coupled to a first DEMUX output, a second summer coupled to a second DEMUX output, a third summer coupled to a third DEMUX output, a fourth summer coupled to a fourth DEMUX output, and a phase estimator coupled to outputs of the first summer, the second summer, the third summer and the fourth summer and having a phase estimate output; a driver having a digital driver port coupled to the digital TOF port and a driver output port; and an analog-to-digital converter (ADC) having an output port coupled to the digital input port of the digital TOF processor.

Abstract: A time of flight sensor includes a time of flight (TOF) processor having a digital TOF port, a digital input port, and a digital output port, the TOF processor comprising a phase detector including cyclically rotating demultiplexer (DEMUX), a first summer coupled to a first DEMUX output, a second summer coupled to a second DEMUX output, a third summer coupled to a third DEMUX output, a fourth summer coupled to a fourth DEMUX output, and a phase estimator coupled to outputs of the first summer, the second summer, the third summer and the fourth summer and having a phase estimate output; a driver having a digital driver port coupled to the digital TOF port and a driver output port; and an analog-to-digital converter (ADC) having an output port coupled to the digital input port of the digital TOF processor.

Abstract: A multipoint communication system for a battery management system includes a distributed antenna at least partially disposed within a battery pack, a plurality of nodes, each node being wirelessly coupled to the distributed antenna and configured to acquire battery information, and a radio frequency gateway electrically coupled to the distributed antenna.

Abstract: A method for communicating an event occurrence among a plurality of photovoltaic assemblies of a photovoltaic system includes the following steps: (1) in response to the event occurrence, injecting a first signal onto a power line at a first photovoltaic assembly of the plurality of photovoltaic assemblies, (2) detecting the first signal on the power line at a second photovoltaic assembly of the plurality of photovoltaic assemblies, and (3) in response to detecting the first signal on the power line at the second photovoltaic assembly, injecting a second signal onto the power line at the second photovoltaic assembly.

Abstract: A time of flight sensor includes a time of flight (TOF) processor having a digital TOF port, a digital input port, and a digital output port, the TOF processor comprising a phase detector including cyclically rotating demultiplexer (DEMUX), a first summer coupled to a first DEMUX output, a second summer coupled to a second DEMUX output, a third summer coupled to a third DEMUX output, a fourth summer coupled to a fourth DEMUX output, and a phase estimator coupled to outputs of the first summer, the second summer, the third summer and the fourth summer and having a phase estimate output; a driver having a digital driver port coupled to the digital TOF port and a driver output port; and an analog-to-digital converter (ADC) having an output port coupled to the digital input port of the digital TOF processor.

Abstract: A multipoint communication system for a battery management system includes a distributed antenna at least partially disposed within a battery pack, a plurality of nodes, each node being wirelessly coupled to the distributed antenna and configured to acquire battery information, and a radio frequency gateway electrically coupled to the distributed antenna.

Abstract: A method for direct current power line communication in a photovoltaic system includes (a) transferring power between at least one photovoltaic device and a load using a power line, (b) maintaining a magnitude of a current flowing through the power line above a threshold value in a normal operating mode of the photovoltaic system, (c) detecting a change in operation of the power line in response to magnitude of a direct current component of the current flowing through the power line falling below the threshold value, and (d) in response to the detected change in operation of the power line, decoding operating state of the power line to obtain information.

Abstract: A method for direct current power line communication in a photovoltaic system includes (a) transferring power between at least one photovoltaic device and a load using a power line, (b) maintaining a magnitude of a current flowing through the power line above a threshold value in a normal operating mode of the photovoltaic system, (c) detecting a change in operation of the power line in response to magnitude of a direct current component of the current flowing through the power line falling below the threshold value, and (d) in response to the detected change in operation of the power line, decoding operating state of the power line to obtain information.

Abstract: An energy efficient, low distortion amplification apparatus includes: a differential amplifier having a pair of differential inputs, a pair of outputs, and a bias current control input; a digital delay having an n-bit word input and an m-bit word output; a digital-to-analog converter (DAC) having an input coupled to the output of the digital delay and a pair of differential outputs coupled to the pair of differential inputs of the differential amplifier; and a bias current controller having an input coupled to the digital delay and having an output coupled to the bias current control input of the differential amplifier.