Title:
LEVEL SHIFTER
Document Type and Number:
WIPO Patent Application WO/2018/022678
Kind Code:
A3
Abstract:
Certain aspects of the present disclosure provide methods and apparatus for level shifting an input signal ranging between certain voltage levels to generate an output signal ranging between other voltage levels with low power, high speed, and immunity to noise. One example level-shifting circuit generally includes a node for receiving an input signal ranging between a first voltage level and a second voltage level, a first circuit path coupled to the node and configured to level shift the input signal to generate an output signal ranging between a third voltage level and a fourth voltage level, a pulse generator coupled to the node and configured to generate a pulse based on a transition in the input signal between the first and second voltage levels, and a second circuit path connected in parallel with the first path and configured to temporarily short the first path based on the generated pulse.
Inventors:
ZHANG ZHIQING (US)
WALKER BRETT (US)
YUNG CHI FAN (US)
PHILPOTT JUSTIN (US)
DUNCAN JOSEPH (US)
WALKER BRETT (US)
YUNG CHI FAN (US)
PHILPOTT JUSTIN (US)
DUNCAN JOSEPH (US)
Application Number:
PCT/US2017/043825
Publication Date:
April 26, 2018
Filing Date:
July 26, 2017
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H03K19/0185
Foreign References:
| US20160036443A1 | 2016-02-04 | |||
| US20070290735A1 | 2007-12-20 | |||
| US5619151A | 1997-04-08 | |||
| US20090115456A1 | 2009-05-07 | |||
| US20130154713A1 | 2013-06-20 | |||
| US20130257505A1 | 2013-10-03 |
Attorney, Agent or Firm:
ROBERTS, Steven E. et al. (US)
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