Invention Grant
- Patent Title: Current switching device with IGCT
- Patent Title (中): IGCT电流开关器件
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Application No.: US14257509Application Date: 2014-04-21
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Publication No.: US09503082B2Publication Date: 2016-11-22
- Inventor: Tobias Wikström
- Applicant: ABB Technology AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Taft Stettinius & Hollister LLP
- Priority: EP13164553 20130419
- Main IPC: H03K17/72
- IPC: H03K17/72 ; H03K17/732 ; H03K17/0412

Abstract:
An exemplary current switching device includes an integrated gate-commutated thyristor with an anode, a cathode, and a gate, wherein a current between the anode and the cathode is interruptible by applying a switch-off voltage to the gate; and a gate unit for generating the switch-off voltage. The gate unit and a connection of the gate unit to the gate establish a gate circuit having a stray impedance. The gate unit is adapted for generating a spiked switch-off voltage with a maximum above a breakdown voltage (VGRMAX) between the cathode and the gate, such that the switch-off voltage at the gate stays below the breakdown voltage (VGRMAX) due to the stray impedance of the gate circuit.
Public/Granted literature
- US20140312959A1 CURRENT SWITCHING DEVICE WITH IGCT Public/Granted day:2014-10-23
Information query
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