Ratiometric compensated optical isolation coupler
Номер патента: AU6042398A
Опубликовано: 18-08-1998
Автор(ы): Donald C. Barrett
Принадлежит: Xircom Inc
Опубликовано: 18-08-1998
Автор(ы): Donald C. Barrett
Принадлежит: Xircom Inc
Реферат: An improved opto-isolator circuit is disclosed. A fixed bias current is induced through a photoemitter of the opto-isolator. A fixed DC voltage is fixed across the sensor of the opto-isolator, whereby any unknown scaling factor in the opto-isolator is substantially eliminated. In a low frequency embodiment, a passive bridge is used while in a high frequency embodiment, an active bridge circuit is used.
Bidirectional interface for interconnecting two devices and the interface having first optical isolator and second optical isolator being powered by first and second device ports
Номер патента: US5555421A. Автор: Donald J. ENZINNA. Владелец: Kistler Instrument Corp. Дата публикации: 1996-09-10.