18308104. POWER AMPLIFIER simplified abstract (SAMSUNG ELECTRO-MECHANICS CO., LTD.)
POWER AMPLIFIER
Organization Name
SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor(s)
Youngwong Jang of Suwon-si (KR)
Jeonghoon Kim of Suwon-si (KR)
Shinichi Iizuka of Suwon-si (KR)
POWER AMPLIFIER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18308104 titled 'POWER AMPLIFIER
Simplified Explanation:
This patent application describes a power amplifier with an overpower protection circuit to prevent damage to the power transistor.
- The power amplifier includes a power transistor that receives a power voltage.
- A first transistor provides bias current to the power transistor.
- An overpower protection circuit generates a first current based on the power voltage and provides it to the first transistor.
- The overpower protection circuit includes a limiting current source that provides a limiting current to the first transistor's terminal.
- A sink current generating circuit, with a second transistor, sinks a second current from the limiting current.
Key Features and Innovation:
- Power amplifier with overpower protection circuit.
- First transistor providing bias current.
- Limiting current source and sink current generating circuit for protection.
- Second transistor in sink current generating circuit.
Potential Applications:
This technology can be used in various power amplifier systems where protection against overpower situations is crucial, such as in audio amplifiers, RF amplifiers, and other high-power applications.
Problems Solved:
This technology addresses the issue of overpower situations that can damage power transistors in amplifiers, ensuring the longevity and reliability of the amplifier system.
Benefits:
- Enhanced protection against overpower situations.
- Increased reliability and longevity of power amplifiers.
- Improved performance under high-power conditions.
Commercial Applications:
Potential commercial applications include audio equipment, telecommunications infrastructure, industrial machinery, and automotive systems where high-power amplification is required.
Questions about Power Amplifiers:
1. What are the key components of a power amplifier circuit? 2. How does overpower protection benefit power amplifier systems?
2. Another relevant generic question, with a detailed answer.
Original Abstract Submitted
A power amplifier includes: a power transistor to receive a power voltage; a first transistor including a first terminal to provide a bias current to the power transistor; and an overpower protection circuit to generate a first current corresponding to the power voltage and to provide the first current to a second terminal of the first transistor. The overpower protection circuit includes: a limiting current source to provide a limiting current to the second terminal of the first transistor; and a sink current generating circuit including a second transistor that includes a control terminal to which a voltage corresponding to the power voltage is applied and a first terminal connected to the second terminal of the first transistor, and to sink a second current from the limiting current.
