Inventor
Yunfei Shi
Inventor
San Diego, CA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers50%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems20%
G05FSystems for regulating electric or magnetic variables10%
H03GControl of amplification10%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%
PatentTitleYear
9,837,962Envelope tracker with variable boosted supply voltage20179,537,450'Dynamic headroom for envelope tracking'20179,372,492'Programmable frequency range for boost converter clocks'20169,130,457'Control logic for switches coupled to an inductor'20158,866,547'Dynamic headroom for envelope tracking'20148,754,707'Boost converter control for envelope tracking'2014Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2014–2017Patents assigned to QUALCOMM INC (6)· patent assignee history
2014–2017Based in San Diego, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| QUALCOMM INC | 6 | 2014–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Diego, California, US | 6 | 2014–2017 |