Qiong Joan Wang

US Patent:

20220415558, Dec 29, 2022

Filed:

Jun 25, 2021

Appl. No.:

17/358354

Inventors:

- Mountain View CA, US
Houle Gan - Santa Clara CA, US
Runruo Chen - Sunnyvale CA, US
Qiong Wang - Palo Alto CA, US
Xin Li - Cupertino CA, US

International Classification:

H01F 27/28
H01F 27/06
H01F 27/24

Abstract:

The subject matter described herein provides systems and techniques for the integration of TLVR technology in a vertical power VR module. A multiple-secondary TLVR topology using a controlled leakage inductance in the place of a separate compensation inductor, Lc, may be employed for the vertical power VR module. In addition, the capacitance inside the device to which the TLVR based vertical power VR module supplies power, rather than an output capacitance board, may be used in order to allow the module to be a single layer. Example structures that may include one or more primary windings and/or one or more secondary windings for each of possibly multiple linked phases of the TLVR based module are provided. The windings may be formed using traditional copper windings or printed circuit board (PCB) copper trace winding.

US Patent:

20210104910, Apr 8, 2021

Filed:

Oct 7, 2019

Appl. No.:

16/594704

Inventors:

- Mountain View CA, US
Xin Li - San Jose CA, US
Philippe H. Gow - Sunnyvale CA, US
Qiong Wang - Palo Alto CA, US

International Classification:

H02J 9/06
H02M 3/335
H02J 1/10
H02J 3/38
H02J 7/00

Abstract:

Methods, systems, and apparatus, for powering AC and DC loads in the event of a power failure. In one aspect, a system includes one or more DC loads that are powered by DC power, one or more AC loads that are powered by AC power, and an uninterruptible power supply (UPS). The UPS includes AC terminals connected to an AC power source and to the one or more AC loads to power the AC loads, DC terminals connected to a backup battery and to the one or more DC loads to power the DC loads a bidirectional AC/DC converter connected between the AC terminals and the DC terminals, and a controller that selectively switches the bidirectional AC/DC converter to the first mode when the AC power source is available and to the second mode when the AC power source is not available.