Outdoor lighting system with controlled luminance

Output circuit for an electronic ballast system

Output circuit for klystron and klystron with an output circuit

Output short circuit protection for electronic ballasts

Output short circuit protection for electronic ballasts

Over temperature protection circuit having plural thermal compon

Over-current protection circuit for use in television horizontal

Overheating protection device for a control device in gas...

Overvoltage and thermally protected electronic ballast

Overvoltage protected de-boost regulator

Overvoltage protected fluorescent tube supply circuit

Overvoltage protection for hid lamp ballast

Overvoltage shutdown circuit for excitation supply for gas disch

Oximeter with nulled op-amp current feedback

Ozone generator having a mercury lamp with a filament...