Signal isolators using micro-transformers

Details Signal isolators using micro-transformers Signal isolators using micro-transformers

2011-04-05

2011-04-05

Tan, Vibol (Department: 2819)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S306000, C327S510000, C327S564000, C326S021000, C375S258000, C375S358000

Reexamination Certificate

active

07920010

ABSTRACT:
A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type is supplied to the primary winding and in response to a second type of edge in the logic signal, a signal of a second predetermined type is supplied to said primary winding, the primary winding and the transmitter being referenced to a first ground; and the secondary winding being referenced to a second ground which is galvanically isolated from the first ground and said secondary winding supplying to a receiver circuit signals received in correspondence to the signals provided to the primary winding, the receiver reconstructing the received logic signal from the received signals.

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