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公开(公告)号：US11271610B2
公开(公告)日：2022-03-08
申请号：US17060743
申请日：2020-10-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Wonjun Jung , Seunghoon Kang , Kiyong Son
Abstract: A switching transformer includes a drive amplifier configured to output an input signal by amplifying a source signal, a primary circuit including a set of primary inductors, a primary switch, and a first primary connecting wire, the set of primary inductors being configured to receive the input signal at a first primary input/output terminal, the primary switch being configured to adjust an inductance of the set of primary inductors based on a first switching operation, and the first primary connecting wire being configured to electrically connect the first primary input/output terminal to an end of the primary switch, and a secondary circuit configured to mutually electrically couple to the first primary connecting wire and at least one primary inductor among the set of primary inductors.
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公开(公告)号：US11855665B2
公开(公告)日：2023-12-26
申请号：US17749399
申请日：2022-05-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Wonjun Jung
CPC classification number: H04B1/04 , H04B1/0057 , H04B2001/0425 , H04B2001/0491
Abstract: Disclosed is a transmission radio frequency (RF) circuit including a transmission mixer configured to receive an intermediate frequency (IF) signal and up-convert the IF signal into an RF signal, a driving amplifier configured to amplify the RF signal, and an LLC filter electrically connected to a differential output of the transmission mixer and a differential input of the driving amplifier, the LLC filter comprising a first inductor connecting a first node of the differential output of the transmission mixer to a first intermediate node, a second inductor connecting a second node of the differential output of the transmission mixer to a second intermediate node, a third inductor connecting the first intermediate node to the second intermediate node, and a capacitor in parallel with the third inductor.
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公开(公告)号：US11264962B2
公开(公告)日：2022-03-01
申请号：US15930877
申请日：2020-05-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jisoo Chang , Wonjun Jung , Byeongwan Ha
Abstract: A fully differential amplifier includes: an input stage comprising a first amplification circuit and a second amplification circuit, one of which is configured to generate a push signal and the other of which is configured to generate a pull signal, each by amplifying a differential input signal; an output stage for generating a differential output signal based on the push signal and the pull signal; and a feedback circuit for providing common mode feedback to the first amplification circuit based on the differential output signal, wherein the second amplification circuit may include a passive network for setting a common mode voltage of the push signal or the pull signal.
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公开(公告)号：US20210104986A1
公开(公告)日：2021-04-08
申请号：US15930877
申请日：2020-05-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jisoo Chang , Wonjun Jung , Byeongwan Ha
Abstract: A fully differential amplifier includes: an input stage comprising a first amplification circuit and a second amplification circuit, one of which is configured to generate a push signal and the other of which is configured to generate a pull signal, each by amplifying a differential input signal; an output stage for generating a differential output signal based on the push signal and the pull signal; and a feedback circuit for providing common mode feedback to the first amplification circuit based on the differential output signal, wherein the second amplification circuit may include a passive network for setting a common mode voltage of the push signal or the pull signal.
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