Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.

Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.

Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.

Abstract: Location functionality to determine the geospatial location of a PV module is described. This functionality may be performed at the PV module site itself as well as remote from the PV module site. The location functionality may involve the analysis of data collected from the location of the PV module or modules being analyzed as well as data from locations of other PV modules, which are not being analyzed. This data, from other PV modules may be gathered, recorded, and used as a benchmark, or for some other purpose in embodiments.

Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.

Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.

Abstract: A communication system and method of operating the same that includes, in one embodiment, a transmit filter including a transmit filter capacitor, and a receive filter coupled to the transmit filter. The communication system also includes a switch, coupled to an auxiliary winding of a transformer and to the transmit filter capacitor, configured to alter an impedance of the transmit filter during a receive mode of operation of the communication system. In another embodiment, a transmitter is configured to receive an input data stream, and produce a control signal for a switch-mode power amplifier employing a predetermined data sequence selected by the input data stream thereto.

Abstract: Location functionality to determine the geospatial location of a PV module is described. This functionality may be performed at the PV module site itself as well as remote from the PV module site. The location functionality may involve the analysis of data collected from the location of the PV module or modules being analyzed as well as data from locations of other PV modules, which are not being analyzed. This data, from other PV modules may be gathered, recorded, and used as a benchmark, or for some other purpose in embodiments.

Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.

Abstract: A communication system and method of operating the same that includes, in one embodiment, a transmit filter including a transmit filter capacitor, and a receive filter coupled to the transmit filter. The communication system also includes a switch, coupled to an auxiliary winding of a transformer and to the transmit filter capacitor, configured to alter an impedance of the transmit filter during a receive mode of operation of the communication system. In another embodiment, a transmitter is configured to receive an input data stream, and produce a control signal for a switch-mode power amplifier employing a predetermined data sequence selected by the input data stream thereto.

Abstract: A radio frequency power amplifier system includes a power amplifier coupled to an input signal and configured to provide an output signal at a radio frequency; a signal cancellation system coupled to the input signal, and a first feedback signal, which is based on the output signal, and configured to provide an error signal with a reduced level of the input signal; and a feedback control system coupled to the error signal and configured to provide a correction signal that is used to reduce distortion in the output signal. A corresponding method includes amplifying in a forward path an input signal to provide an output signal at a radio frequency; combining a reference and a first feedback signal to provide an error signal with a reduced level of the input signal; providing, responsive to the error signal and in a. feedback control system that is separate from the forward path, a correction signal; and then using the correction signal to reduce distortion in the output signal.

Abstract: A radio frequency power amplifier and corresponding methods are arranged and configured to drive or provide a radio frequency signal to a resonant load. The amplifier includes a radio frequency switching stage with an output that is coupled to a resonant circuit and configured to provide an output signal with amplitude modulation corresponding to amplitude modulation of an input signal when powered from a fixed voltage power supply and a feedback control system coupled to the input signal and the output signal. The feedback control system includes a sequencer configured to provide a sequencer output that is used to drive the radio frequency switching stage, where the sequencer output has an OFF state that begins at a variable time corresponding to the input and output signal.

Abstract: A radio frequency power amplifier includes a feedback control system coupled to an input signal and a first feedback signal and configured to provide an output; a controlled supply configured to provide power that is controlled in accordance with a signal; and a radio frequency gain stage powered from the controlled supply, driven by the output from the feedback control system, and configured to provide an output signal at the radio frequency to a resonant load, where the first feedback signal corresponds to the output signal. Some embodiments include a sequencer in the feedback control system and others utilize an additional feedback loop to control the power provided by the controlled supply.

Abstract: A radio frequency power amplifier and corresponding method is arranged and configured to drive a resonant load. The radio frequency power amplifier includes a radio frequency switching stage with an output that is coupled to a resonant circuit. The switching stage is configured to provide an output signal with amplitude modulation corresponding to amplitude modulation of an input signal when powered from a fixed voltage power supply. The amplifier further includes a feedback control system coupled to the input signal and the output signal, where the feedback control system includes a sequencer configured to provide a sequencer output that is used to drive the radio frequency switching stage. The amplifier also includes an amplitude control system coupled to the output of the radio frequency switching stage and configured to limit an amplitude of the output signal and in some embodiments a power recovery system.

Abstract: A radio frequency power amplifier and corresponding methods are arranged and configured to drive a resonant load with an output signal that includes AM or complex modulation from an input signal. The amplifier includes: a radio frequency switching stage with an output that is coupled to a resonant circuit and configured to provide the output signal when powered from a fixed voltage power supply; a feedback control system, coupled to the input signal and the output signal, and further comprising a sequencer configured to provide a sequencer output that is used to drive the radio frequency switching stage; and a second feedback system responsive to the sequencer output and configured to provide a second feedback signal that is coupled to the feedback control system, where the sequencer output has an OFF state that begins at a variable time corresponding to the input signal, the output signal, and the second feedback signal.

Abstract: A radio frequency power amplifier and corresponding methods are arranged and configured to drive or provide a radio frequency signal to a resonant load. The amplifier includes a radio frequency switching stage with an output that is coupled to a resonant circuit and configured to provide an output signal with amplitude modulation corresponding to amplitude modulation of an input signal when powered from a fixed voltage power supply and a feedback control system coupled to the input signal and the output signal. The feedback control system includes a sequencer configured to provide a sequencer output that is used to drive the radio frequency switching stage, where the sequencer output has an OFF state that begins at a variable time corresponding to the input and output signal.

Abstract: A radio frequency (RF) switching power amplifier comprises: a switching amplifier 203 to provide an amplified signal within an RF band; and a delta signal modulator (DSM) 207 that is operable; to control the switching amplifier in a feedback configuration, to process an input signal within an intermediate frequency (IF) band where the input signal corresponds to a base band signal and the amplified signal, and to provide an output signal within the RF band to drive the switching amplifier. Certain embodiments allow for or compensate for a floating or variable IF band and multiple RF bands.

Abstract: A radio frequency (RF) switching power amplifier comprises: a switching amplifier 203 to provide an amplified signal within an RF band; and a delta signal modulator (DSM) 207 that is operable; to control the switching amplifier in a feedback configuration, to process an input signal within an intermediate frequency (IF) band where the input signal corresponds to a base band signal and the amplified signal, and to provide an output signal within the RF band to drive the switching amplifier. Certain embodiments allow for or compensate for a floating or variable IF band and multiple RF bands.