Fail-Safe System and Test Module, Notably For Use In A Railroad Signaling System
AssigneeThales
InventorRichard Imhoff
Life of this patent
Estimating the term…
Abstract
A fail-safe system, notably for use in a railroad signaling system, comprising a test module with a photovoltaic coupler able to charge a capacitor. The energy stored in the capacitor provides power supply to a circuit under test. Advantageously, means of measuring a state of charge of the capacitor make it possible to quantify current leaks from the circuit under test.
Claims14
A system including a fail-safe function comprising at least one circuit test module, the test module comprising at least one circuit power supply means, the power supply means comprising an insulated photovoltaic coupler able to charge an energy storage means, able to be discharged into the circuit under test, the testing of the circuit comprising at least one first phase of charging the energy storage means and a second phase of discharging the energy storage means.
An electrical circuit test module, which comprises at least one power supply means comprising an insulated photovoltaic coupler able to charge an energy storage means, able to be discharged into the electric circuit.
Dependencies are inferred from the claim text.