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Применить Всего найдено 14. Отображено 14.
24-01-2019 дата публикации

적응형 다중밴드 파워 증폭 장치

Номер: KR0101941953B1
Автор: 조병학, 하종옥, 김정훈, 김윤석
Принадлежит: 삼성전기 주식회사

... 본 발명의 일 실시 예에 따른 파워 증폭 장치는, 기준전압에 기초된 DC 전류와 입력신호의 엔벨로프에 따른 엔벨로프-트래킹 전압에 기초된 ET 전류를 연산하여 제1 ET 바이어스 전류를 생성하는 ET 전류 바이어스 회로; 및 상기 제1 ET 바이어스 전류 및 전원 전압을 공급받아 상기 입력신호를 증폭하도록 바이폴라 접합 트랜지스터를 갖는 파워 증폭 회로; 를 포함하고, 상기 제1 ET 바이어스 전류의 평균전류는 일정하도록 제어된다.

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Номер записи: 1
06-07-2018 дата публикации

VOLTAGE GENERATION CIRCUIT HAVING TEMPERATURE COMPENSATION FUNCTION

Номер: KR1020180076627A
Автор: IIZUKA SHINICHI, HA, JONG OK, KIM, JEONG HOON
Принадлежит:

According to one embodiment of the present invention, provided is a voltage generation circuit having a temperature compensation function, which comprises: a first voltage generation unit generating first voltage having a zero temperature coefficient determined in accordance with a first control signal; a second voltage generation unit generating second voltage having a positive temperature coefficient determined in accordance with a second control signal; an output voltage control unit controlling one voltage of the first voltage and the second voltage to output the same in accordance with a movement mode; and a voltage selection circuit unit selecting one voltage of the first voltage and the second voltage in accordance with the control of the output voltage control unit. Accordingly, a voltage generation circuit selecting one of PTAT characteristics, ZTAT characteristics, and characteristics combined with the PTAT and the ZTAT characteristics can be provided. COPYRIGHT KIPO 2018 (100 ...

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Номер записи: 2
02-11-2016 дата публикации

RF RECEIVING CIRCUIT

Номер: KR1020160126288A
Автор: KIM, JEONG HOON, HA, JONG OK, CHOI, KYU JIN, KANG SUK CHAN
Принадлежит:

The present invention relates to an electrostatic discharge protection circuit. According to an embodiment of the present invention, an RF receiving circuit comprises: a first RF switch unit for outputting an RF signal received from an antenna terminal to an amplification unit according to a switching signal; the amplification unit for amplifying the RF signal; a second RF switch unit for transferring the signal inputted from the amplification unit to a signal process unit; and a control voltage generation unit for applying an on/off voltage or an attenuation operation voltage to a gate terminal of the first RF switch unit as the switching signal. According to an embodiment of the present invention, the RF receiving signal can reduce a size of the circuit by applying a switch for performing attenuation of a signal level. COPYRIGHT KIPO 2016 (40) Signal process unit (50) Control voltage generation unit ...

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Номер записи: 3
28-01-2019 дата публикации

옵셋 제거 기능이 개선된 엔벨로프-추적 전류 바이어스 회로 및 파워 증폭 장치

Номер: KR1020190009179A
Автор: 조병학, 하종옥, 김정훈
Принадлежит:

... 본 발명의 일 실시 예에 따른 엔벨로프-추적 전류 바이어스 회로는, 입력신호에서 ET(Envelope Tracking) 전압을 검출하는 엔벨로프 검출회로; 기준전압을 DC(Direct Current) 전류로 변환하고, 제1 제어 신호에 따라 상기 DC 전류를 조절하는 제1 전압/전류 변환회로; 상기 ET 전압을 ET 전류로 변환하고, 제2 제어 신호에 따라 상기 ET 전류를 조절하고, 상기 ET 전류에서 직류 옵셋 전류를 제거하여 옵셋보상된 ET 전류를 제공하는 제2 전압/전류 변환회로; 및 상기 옵셋보상된 ET 전류와 상기 DC 전류를 연산하여 ET 바이어스 전류를 생성하는 연산 회로; 를 포함한다.

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Номер записи: 4
20-11-2018 дата публикации

POWER AMPLIFIER WITH BOOST FUNCTION

Номер: KR1020180123854A
Автор: JO, BYEONG HAK, KIM, JEONG HOON, PAEK, HYUN, HA, JONG OK
Принадлежит:

According to an embodiment of the present invention, a power amplifier, which can reduce the number of integrated circuits produced with different processes, comprises: a control circuit for generating a bias voltage, and generating a control signal using a battery voltage and a reference voltage; and a power amplifying circuit for providing an operating voltage by boosting the battery voltage according to the control signal, and amplifying an input signal by operating according to the bias voltage and the operating voltage. The power amplifying circuit provides a detecting voltage by detecting the operating voltage, and the control circuit controls the control signal according to the detecting voltage. COPYRIGHT KIPO 2018 (110) Bias circuit (120) High voltage power controller ...

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Номер записи: 5
30-01-2019 дата публикации

적응형 다중밴드 바이어스 제어 회로 및 파워 증폭 장치

Номер: KR1020190010684A
Автор: 조병학, 하종옥, 김정훈, 김윤석
Принадлежит:

... 본 발명의 일 실시 예에 따른 파워 증폭 장치는, 기준전압에 기초된 DC 전류와 입력신호의 엔벨로프에 따른 ET(Envelope-Tracking) 전압에 기초된 ET 전류를 연산하여 제1 ET 바이어스 전류를 생성하는 ET 전류 바이어스 회로; 및 상기 제1 ET 바이어스 전류를 베이스를 통해 공급받고, 전원 전압을 컬렉터를 통해 공급받으며, 상기 베이스를 통해 수신되는 입력신호를 증폭하는 바이폴라 접합 트랜지스터를 갖는 파워 증폭 회로; 를 포함하고, 상기 제1 ET 바이어스 전류의 평균전류는 일정하도록 제어된다.

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Номер записи: 6
07-11-2018 дата публикации

POWER AMPLIFICATION APPARATUS WITH SPURIOUS REDUCTION FUNCTION

Номер: KR101901706B1
Автор: JO, BYEONG HAK, KIM, JEONG HOON, PAEK, HYUN, HA, JONG OK
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

The present invention relates to a power amplification apparatus. The power amplification apparatus according to an embodiment of the present invention comprises: a power supply circuit generating operating power; a random pulse generation circuit which receives the operating power and generates a pulse width modulation signal with randomly changing pulse width over time by using an input RF signal; and a charge pump circuit which receives the operating power and performs a switching operation randomly according to the pulse width modulation signal to generate a negative voltage. COPYRIGHT KIPO 2018 (121) Rectifier (122) Pulse width modulator (130) Charge pump circuit ...

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Номер записи: 7
21-09-2017 дата публикации

ENVELOPE TRACKING POWER AMPLIFIER APPARATUS AND METHOD

Номер: KR1020170106603A
Автор: LEE, YONG HOON, JEONG, EUI RIM, LEE, SANG IL, HONG, SOON IL, PARK, SOON CHAN, LEE, KWANG PYO, HA, JONG OK
Принадлежит:

A tracking power amplifying apparatus according to an embodiment of the present invention includes a first predistortion part for calculating a first predistortion parameter using an input signal and an output signal and outputting a first distortion signal which is obtained by distorting the input signal by using the first predistortion parameter; a second predistortion part for calculating a second predistortion parameter by using the input signal and a second envelope signal and outputting a second distortion signal which is obtained by distorting the first distortion signal by using the second predistortion parameter; a power supply part for receiving the first distortion signal to generate a first envelope signal and providing power supply according to the second envelope signal where the bandwidth of the first envelope signal is limited; and a power amplifier for receiving the supply power and outputting an output signal obtained by amplifying the second distortion signal. It is possible ...

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Номер записи: 8
28-11-2018 дата публикации

부스트 기능을 갖는 전력 증폭 장치

Номер: KR0101922880B1
Автор: 조병학, 김정훈, 백현, 하종옥
Принадлежит: 삼성전기 주식회사

... 본 발명의 일 실시 예에 따른 전력 증폭 장치는, 바이어스 전압을 생성하고, 배터리 전압 및 기준전압을 이용하여 제어 신호를 생성하는 제어 회로; 및 상기 제어 신호에 따라 상기 배터리 전압을 승압하여 동작 전압를 제공하고, 상기 바이어스 전압 및 상기 동작 전압에 따라 동작하여, 입력되는 신호를 증폭하는 파워 증폭 회로; 를 포함하고, 상기 파워 증폭 회로는 상기 동작 전압을 검출하여 검출전압을 상기 제어 회로에 제공하고, 상기 제어 회로는 상기 검출전압에 따라 상기 제어 신호를 제어한다.

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Номер записи: 9
05-12-2018 дата публикации

ENVELOPE-TRACKING CURRENT BIAS CIRCUIT WITH OFFSET CANCELLATION FUNCTION

Номер: KR1020180129477A
Автор: JO, BYEONG HAK, KIM, JEONG HOON, HA, JONG OK
Принадлежит:

According to an embodiment of the present invention, an envelope-tracking current bias circuit comprises: a first rectifying circuit for detecting an envelope of an input signal to provide an envelope detection signal including a first direct current offset voltage; a second rectifying circuit for providing a second direct current offset voltage corresponding to the first direct current offset voltage; and a first calculating circuit for providing an envelope signal in which the first direct current offset voltage is reduced by subtracting the envelope detection signal and the second direct current offset signal. COPYRIGHT KIPO 2019 (110) First rectification circuit (120) Second rectification circuit (140) First current source circuit (150) Second current source circuit ...

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Номер записи: 10
28-08-2018 дата публикации

온도 보상 기능을 갖는 전압 생성 회로

Номер: KR0101892827B1
Автор: 이이즈카, 신이치, 하종옥, 김정훈
Принадлежит: 삼성전기주식회사

... 본 발명의 일 실시 예에 따른 온도 보상 기능을 갖는 전압 생성 회로는, 제1 제어 신호에 따라 결정되는 제로온도계수를 갖는 제1 전압을 생성하는 제1 전압 생성부; 제2 제어 신호에 따라 결정되는 정온도계수를 갖는 제2 전압을 생성하는 제2 전압 생성부; 동작 모드에 따라 상기 제1 전압 및 상기 제2 전압중 어느 하나의 전압을 출력하도록 제어하는 출력전압 제어부; 및 상기 출력전압 제어부의 제어에 따라 상기 제1 전압과 상기 제2 전압중 하나의 전압을 선택하는 전압 선택 회로부; 를 포함한다.

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Номер записи: 11
09-11-2016 дата публикации

POWER AMPLIFIER AND CURRENT LIMITING METHOD OF POWER AMPLIFIER

Номер: KR1020160129370A
Автор: LEE, KWANG DU, YOON HO KWON, HA, JONG OK, HONG, KYUNG HEE, IIZUKA SHINICHI, CHOI, JAE HYOUCK, KANG SUK CHAN
Принадлежит:

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. COPYRIGHT KIPO 2016 (110) Amplification unit (120) Sensing unit (130) Biasing unit ...

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Номер записи: 12
09-05-2018 дата публикации

ADAPTIVE MULTI-BAND POWER AMPLIFYING APPARATUS

Номер: KR1020180046847A
Автор: JO, BYEONG HAK, HA, JONG OK, KIM, JEONG HOON, KIM, YOUN SUK
Принадлежит:

A power amplifying apparatus according to an embodiment of the present invention includes: an ET current bias circuit for generating a first ET bias current by calculating an ET current based on an envelope-tracking voltage according to an envelope of an input signal and a DC current based on a reference voltage; and a power amplifying circuit including a bipolar junction transistor for receiving the first ET bias current and a power supply voltage and amplifying the input signal. An average current of the first ET bias current is controlled to be constant. Accordingly, the present invention can improve an adjacent channel power ratio (ACPR). COPYRIGHT KIPO 2018 (500) Control circuit (RT-PA) Ratio parameter ...

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Номер записи: 13
11-10-2017 дата публикации

HIGH-FREQUENCY SIGNAL PREDISTORTION APPARATUS AND POWER AMPLIFIER NONLINEAR DISTORTION CORRECTION APPARATUS

Номер: KR1020170110275A
Автор: LEE, YONG HOON, LEE, SANG IL, KIM, MIN HYUN, SIRL, YOUNG WOOK, JEONG, EUI RIM, HONG, SOON IL, HA, JONG OK, KIM, SEONG JIN
Принадлежит:

The present invention relates to a high-frequency signal predistortion apparatus. The high-frequency signal predistortion apparatus can comprise: a high frequency signal estimator estimating nonlinear distortion characteristics of a plurality of high-frequency signals transmitted through different antennas;a predistortion estimator estimating a predistortion coefficient based on nonlinear distortion characteristics; and a predistorter predistorting base signals of the plurality of high-frequency signals based on the predistortion coefficient. COPYRIGHT KIPO 2017 (110) High frequency signal estimator (120) Predistortion estimator (130) Predistorter (140) Beamformer ...

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Номер записи: 14