Inventor
Kaiwei Yao
Inventor
San Jose, CA, US
Overview
Patents· 40 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
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 systems15%
H05BElectric heating14%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
H02JElectric power networks9%
H03KPulse technique9%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
Y10TTechnical subjects covered by former us classification5%
G05FSystems for regulating electric or magnetic variables3%
H01LSemiconductor devices3%
PatentTitleYear
10,927,239Resin composition and resin molded article202110,899,912Resin composition and resin molded article202110,889,701Resin composition and resin molded article202110,826,471Switch mode power supply with ramp generator for wide frequency range pulse width modulator or the like202010,797,605Resonant switching converter202010,778,097Maximum power point tracking controllers and associated systems and methods202010,389,337Ramp generator for wide frequency range pulse width modulator controller or the like201910,116,202Adaptive clamping circuitry20189,966,899Systems and methods for controlling maximum power point tracking controllers20189,837,556Integrated photovoltaic panel with sectional maximum power point tracking20179,806,523'Switching circuits for extracting power from an electric power source and associated methods'20179,698,599'Switching circuits for extracting power from an electric power source and associated methods'20179,577,426'Switching circuits for extracting power from an electric power source and associated methods'20179,557,758'Systems and methods for controlling maximum power point tracking controllers'20179,312,769'Switching circuits for extracting power from an electric power source and associated methods'20169,179,519'Phase-shift dimming for LED controller and the method thereof'20159,141,123'Maximum power point tracking controllers and associated systems and methods'20159,035,626'Switching circuits for extracting power from an electric power source and associated methods'20159,035,566'Light emitting diode driver systems and associated methods of control'20158,952,632'Driver systems for driving light emitting diodes and associated driving methods'20158,946,937'Switching circuits for extracting power from an electric power source and associated methods'20158,872,384'Switching circuits for extracting power from an electric power source and associated methods'20148,503,139'High dimming ratio control and short circuit protection for LED drive with step up converter'20138,410,716'Control of multi-string LED array'20138,354,799'Bypass circuitry for serially coupled light emitting diodes and associated methods of operation'20138,310,165'High-voltage LED drive scheme with partial power regulation'20128,269,423'LED drivers with adaptive hysteretic control circuits and associated methods of operation'20128,102,129'Method and circuit for short-circuit and over-current protection in a discharge lamp system'20128,064,202'Sandwich structure with double-sided cooling and EMI shielding'20118,063,570'Simple protection circuit and adaptive frequency sweeping method for CCFL inverter'20118,054,655'Tail current control of isolated converter and apparatus thereof'20117,825,883'Method for controlling a universal backlight inverter'20107,804,254'Method and circuit for short-circuit and over-current protection in a discharge lamp system'20107,719,206'Method and system for open lamp protection'20107,443,330'Method of 1-bit hysteretic control in N-bit A/D conversion'20087,423,384'Lamp voltage feedback system and method for open lamp protection and shorted lamp protection'20087,420,829'Hybrid control for discharge lamps'20087,420,337'System and method for open lamp protection'20087,394,203'Method and system for open lamp protection'20086,784,644'Multiphase clamp coupled-buck converter and magnetic integration'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2015Patents assigned to MONOLITHIC POWER SYSTEMS INC (18)· patent assignee history
2008–2020Based in San Jose, CA, US· patent location history
2008–2012Based in Santa Clara, CA, US· patent location history
2011–2015Patents assigned to YAO KAIWEI (14)· patent assignee history
2014–2017Patents assigned to VOLTERRA SEMICONDUCTOR CORP (6)· patent assignee history
2014–2015Patents assigned to BORISAVLJEVIC ANA (3)· patent assignee history
2015–2020Patents assigned to Volterra Semiconductor LLC (9)· patent assignee history
2020Based in Sunnyvale, CA, US· patent location history
2020Based in Hangzhou, CN· patent location history
2021Based in Minami-ashigara, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MONOLITHIC POWER SYSTEMS INC | 18 | 2008–2015 |
| YAO KAIWEIself | 14 | 2011–2015 |
| Volterra Semiconductor LLC | 9 | 2015–2020 |
| VOLTERRA SEMICONDUCTOR CORP | 6 | 2014–2017 |
| BORISAVLJEVIC ANA | 3 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 25 | 2008–2020 |
| Santa Clara, California, US | 9 | 2008–2012 |
| Minami-ashigara, JP | 3 | 2021 |
| Sunnyvale, California, US | 1 | 2020 |
| Hangzhou, CN | 1 | 2020 |