Method and apparatus for providing a remedial strategy for an electrical circuit
AssigneePratt & Whitney Canada Corp.
InventorKamal Al-Haddad
Life of this patent
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Abstract
A method and electrical circuit for dynamic reconfiguration of a DC-to-AC inverter comprising first and second power rails where each the rails has a power source. The method comprises monitoring the first and second power rails for short-circuit failure; and upon failure of one of the power rails, disconnecting the failed power rail from its power source.
Claims10
An electronic circuit for maintaining electrical conditions at a connection point in a circuit comprising two circuit switches serially connected via the connection point in case of a failure of any one of said two circuit switches, the circuit comprising a first end and a second end between which the two circuit switches are located, said electronic circuit comprising:
- a first actuable switch connected in parallel with said two circuit switches;
- a second actuable switch connected in series with said first end;
- a third actuable switch connected in series with said second end;
- a control unit for controlling said first actuable switch, said second actuable switch and said third actuable switch depending on a status of any one of said two circuit switches.
An electronic circuit for providing a remedial strategy in case of a failure of any one of two serially connected switches in an N-phase driving circuit, wherein each side of a given phase is connected between said two serially connected switches having current blocking means, said two serially connected switches comprising a first end and a second end between which said two serially connected switches are located, said electronic circuit comprising:
- a first actuable switch, having current blocking means, connected in parallel with said two serially connected switches;
- a second actuable switch, having current blocking means, connected in series with said first end;
- a third actuable switch, having current blocking means, connected in series with said second end;
- a control unit for controlling said first actuable switch, said second actuable switch and said third actuable switch depending on a status of any one of said two serially connected switches.
A method for dynamic reconfiguration of a DC-to-AC inverter comprising first and second power rails, each said rail having a power source, said method comprising:
- monitoring said first and second power rails for short-circuit failure;
- and
- upon failure of one of said power rails, disconnecting said failed power rail from its power source.
Dependencies are inferred from the claim text.