Abstract: This application is directed to methods and devices for an efficient power amplification system. An electronic device includes a first and a second power amplifier that are coupled to a quadrature combiner, a temperature monitoring circuit coupled to the first and second power amplifiers, and a controller coupled to the temperature monitoring circuit. The temperature monitoring circuit is configured to determine a temperature difference between the first and second power amplifiers. The controller is configured to adjust operation of at least one of the first and second power amplifiers to reduce the temperature difference between the first and second power amplifiers.

Abstract: This application is directed to methods and devices for an efficient power amplification system. An electronic device includes a first and a second power amplifier that are coupled to a quadrature combiner, a temperature monitoring circuit coupled to the first and second power amplifiers, and a controller coupled to the temperature monitoring circuit. The temperature monitoring circuit is configured to determine a temperature difference between the first and second power amplifiers. The controller is configured to adjust operation of at least one of the first and second power amplifiers to reduce the temperature difference between the first and second power amplifiers.

Abstract: An adjustable bonding washer for placement between two metal pieces to create an electrical bond between them. The bonding washer has two metallic parts constrained to slide relative to one another along an axis. Each part has oppositely directed teeth that are forcibly embedded into the metal pieces to make electrical contact with them when they are rigidly clamped together. Adjustability enables the bonding washer to be mated with metal pieces having a range of widths and profiles, such as the slotted rails used to support arrays of photovoltaic panels.

Abstract: An adjustable bonding washer for placement between two metal pieces to create an electrical bond between them. The bonding washer has two metallic parts constrained to slide relative to one another along an axis. Each part has oppositely directed teeth that are forcibly embedded into the metal pieces to make electrical contact with them when they are rigidly clamped together. Adjustability enables the bonding washer to be mated with metal pieces having a range of widths and profiles, such as the slotted rails used to support arrays of photovoltaic panels.

Abstract: An adjustable bonding washer for placement between two metal pieces to create an electrical bond between them. The bonding washer has two metallic parts constrained to slide relative to one another along an axis. Each part has oppositely directed teeth that are forcibly embedded into the metal pieces to make electrical contact with them when they are rigidly clamped together. Adjustability enables the bonding washer to be mated with metal pieces having a range of widths and profiles, such as the slotted rails used to support arrays of photovoltaic panels.

Abstract: An adjustable bonding washer for placement between two metal pieces to create an electrical bond between them. The bonding washer has two metallic parts constrained to slide relative to one another along an axis. Each part has oppositely directed teeth that are forcibly embedded into the metal pieces to make electrical contact with them when they are rigidly clamped together. Adjustability enables the bonding washer to be mated with metal pieces having a range of widths and profiles, such as the slotted rails used to support arrays of photovoltaic panels.