Processing

Please wait...

Settings

Settings

Goto Application

1. WO2015148095 - SYSTEMS AND METHODS FOR COMMON MODE LEVEL SHIFTING

Publication Number WO/2015/148095
Publication Date 01.10.2015
International Application No. PCT/US2015/019254
International Filing Date 06.03.2015
Chapter 2 Demand Filed 11.02.2016
IPC
H03F 3/45 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
CPC
H03F 2200/291
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
291the level shifting stage between two amplifying stages being realised by a source follower
H03F 2203/45081
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2203Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
45Indexing scheme relating to differential amplifiers
45081the common mode signal being level shifted before using it for controlling or adding
H03F 2203/45084
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2203Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
45Indexing scheme relating to differential amplifiers
45084the common mode signal circuit comprising one or more inductive or capacitive elements, e.g. filter circuitry
H03F 3/45179
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
45071with semiconductor devices only
45076characterised by the way of implementation of the active amplifying circuit in the differential amplifier
45179using MOSFET transistors as the active amplifying circuit
H03F 3/45475
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
45071with semiconductor devices only
45076characterised by the way of implementation of the active amplifying circuit in the differential amplifier
45475using IC blocks as the active amplifying circuit
H03F 3/45717
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
45071with semiconductor devices only
45479characterised by the way of common mode signal rejection
45632in differential amplifiers with FET transistors as the active amplifying circuit
45695by using feedforward means
45699Measuring at the input circuit of the differential amplifier
45717Controlling the loading circuit of the differential amplifier
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • LI, Miao
  • KONG, Xiaohua
  • ZHU, Zhi
  • XU, Jie
Agents
  • KELTON, Thomas
  • EDWARDS, Gary J.
Priority Data
14/228,04927.03.2014US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR COMMON MODE LEVEL SHIFTING
(FR) SYSTÈMES ET PROCÉDÉS DE DÉCALAGE DU NIVEAU DE MODE COMMUN
Abstract
(EN) A common mode voltage level shifting circuit including: input nodes configured to receive a differential signal with a first common mode voltage, a pair of shunt capacitors coupled between the input nodes and a corresponding pair of output nodes, a threshold voltage circuit, including the output nodes, coupled to the differential signal though the shunt capacitors, the threshold voltage circuit configured to provide a second common mode voltage for the differential signal at the output nodes, and current sources that are controlled according to a level of the first common mode voltage, the current sources coupled to the output nodes to effect the second common mode voltage.
(FR) L'invention concerne un circuit de décalage du niveau de tension de mode commun comprenant : des nœuds d'entrée conçus pour recevoir un signal différentiel avec une première tension de mode commun, une paire de condensateurs de dérivation couplés entre les nœuds d'entrée et une paire correspondante de nœuds de sortie, un circuit de tension de seuil, comprenant les nœuds de sortie, couplé au signal différentiel au moyen des condensateurs de dérivation, le circuit de tension de seuil étant conçu pour fournir une seconde tension de mode commun pour le signal différentiel au niveau des nœuds de sortie, et des sources de courant qui sont commandées conformément à un niveau de la première tension de mode commun, les sources de courant étant couplées aux nœuds de sortie pour effectuer la seconde tension de mode commun.
Related patent documents
BR112016022271This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
Latest bibliographic data on file with the International Bureau