US 11,916,523 B2
Amplification apparatus, integration apparatus and modulation apparatus each including duty-cycled resistor
Wonseok Lee, Suwon-si (KR); Kent Edrian Lozada, Daejeon (KR); Seung Tak Ryu, Daejeon (KR); and Sang Joon Kim, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR); and Korea Advanced Institute of Science and Technology, Daejeon (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR); and Korea Advanced Institute of Science and Technology, Daejeon (KR)
Filed on Apr. 13, 2021, as Appl. No. 17/228,982.
Claims priority of application No. 10-2020-0134601 (KR), filed on Oct. 16, 2020.
Prior Publication US 2022/0123700 A1, Apr. 21, 2022
Int. Cl. H03F 3/45 (2006.01)
CPC H03F 3/45475 (2013.01) [H03F 2200/129 (2013.01); H03F 2203/45512 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An amplification apparatus comprising:
an amplifier having an inverting terminal, and a non-inverting terminal connected to a reset voltage node;
a first capacitor connected to the inverting terminal, an input voltage being applied to the first capacitor;
a second capacitor connected to the inverting terminal and an output terminal of the amplifier; and
a duty-cycled resistor, connected in parallel to the second capacitor, comprising a first resistor, the duty-cycled resistor being configured to
connect the first resistor and the inverting terminal and to disconnect the first resistor and the reset voltage node during a first time interval included in a period to complete an on-and-off cycle of the duty-cycled resistor, and
disconnect the first resistor and the inverting terminal and to connect the first resistor and the reset voltage node during a second time interval included in the period.