Power amplifier and method for limiting current in power amplifier
According to an embodiment of the present invention, a power amplifier includes: an amplification unit which amplifies an input signal; a sensing unit which varies a resistance value; and a biasing unit which provides a current to the amplification unit and biases the amplification unit. The sensing...
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| Main Authors | , , , , , , |
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| Format | Patent |
| Language | English Korean |
| Published |
09.11.2016
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| Subjects | |
| Online Access | Get full text |
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| Abstract | According to an embodiment of the present invention, a power amplifier includes: an amplification unit which amplifies an input signal; a sensing unit which varies a resistance value; and a biasing unit which provides a current to the amplification unit and biases the amplification unit. The sensing unit varies the current provided to the amplification unit by the biasing unit based on a bias of the amplification unit to reduce the occurrence frequency of an overcurrent.
본 발명의 일 실시 예에 따른 전력 증폭기는, 입력 신호를 증폭시키는 증폭부; 저항값이 변하는 센싱부; 및 증폭부에 전류를 제공하여 바이어싱(biasing)하는 바이어싱부; 를 포함하고, 센싱부는 증폭부의 바이어스에 기초하여 바이어싱부에 의해 증폭부에 제공되는 전류를 변경시킴으로써, 과전류의 발생빈도를 줄일 수 있다. |
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| AbstractList | According to an embodiment of the present invention, a power amplifier includes: an amplification unit which amplifies an input signal; a sensing unit which varies a resistance value; and a biasing unit which provides a current to the amplification unit and biases the amplification unit. The sensing unit varies the current provided to the amplification unit by the biasing unit based on a bias of the amplification unit to reduce the occurrence frequency of an overcurrent.
본 발명의 일 실시 예에 따른 전력 증폭기는, 입력 신호를 증폭시키는 증폭부; 저항값이 변하는 센싱부; 및 증폭부에 전류를 제공하여 바이어싱(biasing)하는 바이어싱부; 를 포함하고, 센싱부는 증폭부의 바이어스에 기초하여 바이어싱부에 의해 증폭부에 제공되는 전류를 변경시킴으로써, 과전류의 발생빈도를 줄일 수 있다. |
| Author | KANG SUK CHAN LEE, KWANG DU IIZUKA SHINICHI HA, JONG OK HONG, KYUNG HEE YOON HO KWON CHOI, JAE HYOUCK |
| Author_xml | – fullname: CHOI, JAE HYOUCK – fullname: YOON HO KWON – fullname: HA, JONG OK – fullname: IIZUKA SHINICHI – fullname: LEE, KWANG DU – fullname: HONG, KYUNG HEE – fullname: KANG SUK CHAN |
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| DocumentTitleAlternate | 전력 증폭기 및 전력 증폭기의 전류 제한 방법 |
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| Notes | Application Number: KR20150061419 |
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| RelatedCompanies | SAMSUNG ELECTRO-MECHANICS CO., LTD |
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| Snippet | According to an embodiment of the present invention, a power amplifier includes: an amplification unit which amplifies an input signal; a sensing unit which... |
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| SubjectTerms | AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRICITY |
| Title | Power amplifier and method for limiting current in power amplifier |
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