Patent assignee · VG · COMPANY

Active-Semi, Inc.

120Patents
118Active
120Granted
59Portfolio score

Filing activity: Jun 13, 2006 → Jul 8, 2022 · 53 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8102676B2 Compensating for cord resistance to maintain constant voltage at the end of a power converter cord Electricity 75 Active
US7667987B2 Adjusting inductor switching frequency to compensate for inductance that deviates from a stated magnitude in order to maintain constant output current from a primary-side power converter Electricity 52 Active
US7869229B2 Compensating for cord resistance to maintain constant voltage at the end of a power converter cord Electricity 38 Active
US8279631B2 Limiting primary peak charge to control output current of a flyback converter Emerging Cross-Sectional Technologies 37 Active
US7616459B2 System and method for a primary feedback switched mode power supply Electricity 34 Active
US8299724B2 AC LED lamp involving an LED string having separately shortable sections Emerging Cross-Sectional Technologies 28 Active
US7581198B2 Method and system for the modular design and layout of integrated circuits Electricity 27 Active
US8084987B2 USB port with smart power management Emerging Cross-Sectional Technologies 27 Active
US7904864B2 Interconnect layer of a modularly designed analog integrated circuit Electricity 22 Active
US8159204B2 Regulating current output from a buck converter without external current sensing Emerging Cross-Sectional Technologies 21 Active
US8040699B2 Secondary side constant voltage and constant current controller Electricity 20 Active
US8456095B2 Reduced flicker AC LED lamp with separately shortable sections of an LED string Emerging Cross-Sectional Technologies 19 Active
US9000678B2 Reduced flicker AC LED lamp with separately shortable sections of an LED string Emerging Cross-Sectional Technologies 18 Active
US7746673B2 Flyback constant voltage converter having both a PWFM mode and a PWM mode Electricity 16 Active
US8125798B2 Constant current and voltage controller in a three-pin package operating in critical conduction mode Emerging Cross-Sectional Technologies 16 Active
US9946279B1 Programmable voltage setting with open and short circuit protection Electricity 15 Active
US8059429B2 Using output drop detection pulses to achieve fast transient response from a low-power mode Emerging Cross-Sectional Technologies 14 Active
US9705402B1 Power loss protection integrated circuit Electricity 14 Active
US7800351B2 High efficiency voltage regulator with auto power-save mode Emerging Cross-Sectional Technologies 14 Active
US9479004B2 Buck/boost circuit that charges and discharges multi-cell batteries of a power bank device Electricity 14 Active
US8441213B2 Bidirectional phase cut modulation over AC power conductors Emerging Cross-Sectional Technologies 13 Active
US7911814B2 Constant current and voltage controller in a three-pin package with dual-use power pin Electricity 12 Active
US7635956B2 Primary side constant output voltage controller Electricity 11 Active
US8164391B2 Synchronization of multiple high frequency switching power converters in an integrated circuit Electricity 10 Active
US7697308B2 Compensating for inductance variation in a power converter using a dual-purpose feedback pin Electricity 10 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.