DYNAMIC FAIL-SAFE BIASING CIRCUITRY FOR FAULT-TOLERANT APPLICATIONS

摘要

PROBLEM TO BE SOLVED: To provide improved systems and methods for dynamic fail-safe biasing circuitry for fault-tolerant applications.SOLUTION: A biasing circuit includes a differential communication line comprising a first signal line and a second signal line. The biasing circuit further includes a first current source coupled between a power supply and the first signal line. The biasing circuit further includes a first high-precision voltage reference that is coupled to the first current source and outputs a reference voltage driving a current produced by the first current source. The biasing circuit further includes a second current source that is coupled to the second signal line and a system ground and is driven by a voltage supplied by the power supply.SELECTED DRAWING: Figure 1