Invention Grant
- Patent Title: Transceiver utilizing isolated signaling and concealed isolated power to attain high common mode working voltage and tolerance
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Application No.: US16249692Application Date: 2019-01-16
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Publication No.: US10651894B2Publication Date: 2020-05-12
- Inventor: Steven John Tanghe
- Applicant: Linear Technology Holding LLC
- Applicant Address: US MA Norwood
- Assignee: Linear Technology Holding LLC
- Current Assignee: Linear Technology Holding LLC
- Current Assignee Address: US MA Norwood
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H04B3/50
- IPC: H04B3/50 ; H05K9/00

Abstract:
A transceiver capable of common mode operating range and output voltage tolerance set by an isolation boundary and not limited by the device type used in the circuitry. The subject technology is a powered isolated transceiver, where the isolated generated supply and ground nodes are concealed and thus do not participate in tests that stress electrostatic discharge (ESD)/electrical overstress (EOS) or voltage tolerance. The architecture of the subject technology has the advantage of extremely high common mode performance and robust performance using low voltage devices and simplified architecture, which in turn provides less capacitive loading, faster operation, less expensive die development, electromagnetic interference (EMI) advantages, and simple active termination. The subject technology includes an isolation architecture that can be used in environments where isolation is used but is also advantageous in systems without the need for isolation.
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