P

Inventor

UPADHYAY ANAND K

US10 patents
⚠️ This page may combine multiple inventors who share the name “UPADHYAY ANAND K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MOTOROLA INC

5 patents
US5969483AOct 19, 1999

Inverter control method for electronic ballasts

MOTOROLA INC72 citations96
US5945788AAug 31, 1999

Electronic ballast with inverter control circuit

MOTOROLA INC65 citations96
US5998930ADec 7, 1999

Electronic ballast with two-step boost converter and method

MOTOROLA INC75 citations94
US5834924ANov 10, 1998

In-rush current reduction circuit for boost converters and electronic ballasts

MOTOROLA INC67 citations94
US5729096AMar 17, 1998

Inverter protection method and protection circuit for fluorescent lamp preheat ballasts

MOTOROLA INC41 citations92

MOTOROLA LIGHTING INC

2 patents
US5313176AMay 17, 1994

Integrated common mode and differential mode inductor device

MOTOROLA LIGHTING INC70 citations95
US5315280AMay 24, 1994

Bobbin for electrical windings

MOTOROLA LIGHTING INC21 citations92

ZENITH ELECTRONICS CORP

1 patent
US4717994AJan 5, 1988

Current mode control for DC converters operating over 50% duty cycle

ZENITH ELECTRONICS CORP60 citations94

LEE CHU QUON

1 patent
US4992919AFeb 12, 1991

Parallel resonant converter with zero voltage switching

LEE CHU QUON295 citations93

SUNDSTRAND CORP

1 patent
US4616142AOct 7, 1986

Method of operating parallel-connected semiconductor switch elements

SUNDSTRAND CORP96 citations92