18666857. POWER AMPLIFIER CIRCUIT simplified abstract (Murata Manufacturing Co., Ltd.)

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POWER AMPLIFIER CIRCUIT

Organization Name

Murata Manufacturing Co., Ltd.

Inventor(s)

Kenji Tahara of Nagaokakyo-shi (JP)

Takeshi Kogure of Nagaokakyo-shi (JP)

Kae Yamamoto of Nagaokakyo-shi (JP)

POWER AMPLIFIER CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 18666857 titled 'POWER AMPLIFIER CIRCUIT

The abstract describes a power amplifier circuit that includes a carrier amplifier, a peak amplifier, an external output terminal, a combiner, bias circuits, and a current limit circuit.

  • The power amplifier circuit consists of a carrier amplifier and a peak amplifier.
  • A combiner connects the output terminals of the carrier and peak amplifiers to the external output terminal.
  • Bias circuits supply DC bias currents to the carrier and peak amplifiers.
  • A current limit circuit adjusts the bias current based on the power supply voltage applied to the circuit.

Potential Applications: - This technology can be used in telecommunications for amplifying signals. - It can also be applied in audio systems for boosting sound signals.

Problems Solved: - Ensures efficient power amplification while maintaining stability. - Helps prevent damage to the circuit components due to excessive current.

Benefits: - Improved signal amplification performance. - Enhanced reliability and longevity of the power amplifier circuit.

Commercial Applications: Title: "Advanced Power Amplifier Circuit for Enhanced Signal Amplification" This technology can be utilized in the telecommunications industry for developing high-performance amplifiers for signal transmission. It can also find applications in the audio equipment market for producing high-quality sound amplification systems.

Questions about the technology: 1. How does the current limit circuit adjust the bias current based on the power supply voltage? 

  - The current limit circuit is designed to monitor the power supply voltage and adjust the bias current accordingly to maintain optimal performance and prevent overloading.

2. What are the key advantages of using a combiner in the power amplifier circuit? 

  - The combiner allows for efficient combining of signals from the carrier and peak amplifiers, resulting in enhanced output signal quality and power efficiency.


Original Abstract Submitted

A power amplifier circuit includes a carrier amplifier, a peak amplifier, an external output terminal, a combiner that includes an input terminal connected to an output terminal of the power amplifier, an input terminal connected to an output terminal of the power amplifier, and an output terminal connected to the external output terminal, a bias circuit that supplies a DC bias current to the carrier amplifier, a bias circuit that supplies a DC bias current to the peak amplifier, and a current limit circuit that is connected between the power amplifier and the bias circuit and that is configured to change a magnitude of the DC bias current according to a magnitude of a power supply voltage applied to the power amplifier circuit.

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