Invention Grant
- Patent Title: Buffer circuit robust to variation of reference voltage signal
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Application No.: US14959195Application Date: 2015-12-04
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Publication No.: US09742355B2Publication Date: 2017-08-22
- Inventor: Yoon-Joo Eom , Seung-Jun Bae , Dae-Sik Moon , Joon-Young Park , Min-Su Ahn
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Volentine & Whitt, PLLC
- Priority: KR10-2014-0173680 20141205
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03D7/14 ; H03K19/003
Abstract:
A buffer circuit includes a first differential amplifier, second differential amplifier, third differential amplifier, and mixer. The first differential amplifier generates a positive differential signal and a negative differential signal based on an input signal and a reference voltage signal. The second differential amplifier generates a first signal based on the positive differential signal and the negative differential signal. The third differential amplifier generates a second signal having a different phase from the first signal based on the positive differential signal and the negative differential signal. The mixer outputs a signal, generated by mixing the first signal and the second signal, as an output signal.
Public/Granted literature
- US20160164479A1 BUFFER CIRCUIT ROBUST TO VARIATION OF REFERENCE VOLTAGE SIGNAL Public/Granted day:2016-06-09
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