Proximity detection circuit having short protection
AssigneeLear Corporation
InventorKrzysztof Klesyk
Life of this patent
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Abstract
A proximity detection circuit is contemplated to detect connection of a cordset to a vehicle charging system or connection of another device to some other electrical circuit where it may be desirable to facilitate detection. A short protection circuit may be included as part of the proximity detection circuit to facilitate disconnection in the event of a shorter other condition where undesirable currents and/or voltages may be propagated to other systems of portions of the vehicle charging system.
Claims4
1-17. (canceled)
A proximity detection circuit for use within a vehicle having a vehicle charging system configured to facilitate charging a vehicle upon connection of a charging cordset, the proximity detection circuit comprising;
- a connection portion configured to output a first voltage when the charging cordset is disconnected from the vehicle charging system and a second voltage when the charging cordset is connected to the vehicle charging system, the connection portion having an input configured to receive current from a low-voltage power supply;
- and
- a protection portion configured to disconnect the input from the low-voltage power supply upon occurrence of a reverse current flow through the connection portion.
Dependencies are inferred from the claim text.