Wei Zheng

US Patent:

20150192943, Jul 9, 2015

Filed:

Jan 9, 2014

Appl. No.:

14/151701

Inventors:

- San Diego CA, US
Wei ZHENG - San Diego CA, US
Liang DAI - San Diego CA, US
Dinesh J. ALLADI - San Diego CA, US
Yuhua GUO - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G05F 1/56

Abstract:

Exemplary embodiments are related to voltage regulators. A device may include a first energy storage element coupled between a ground voltage and an output. The device may also include a second energy storage element coupled to the ground voltage and configured to selectively couple to the output. Further, the device may include a voltage regulator coupled between an input and the second energy storage element.

US Patent:

20140253210, Sep 11, 2014

Filed:

Mar 6, 2013

Appl. No.:

13/787590

Inventors:

- San Diego CA, US
Wei Zheng - San Diego CA, US
Dinesh J. Alladi - San Diego CA, US
Yuhua Guo - San Diego CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

H03K 5/156
H03K 3/012
H03L 5/00

US Classification:

327333

Abstract:

Certain aspects of the present disclosure provide a voltage level shifting circuit employing a low latency, AC-coupled voltage boost circuit, as well as other circuits and apparatus incorporating such a level shifting circuit. Such level shifting circuits provide significantly lower latency compared to conventional level shifters (e.g., latency reduced by at least a factor of two). Offering consistent latency over the simulation corners, level shifting circuits described herein also provide significantly lower power consumption and reduced duty cycle distortion compared to conventional level shifters.