Invention Grant
US08575974B2 Method and control circuit for controlling a power semiconductor component
有权
用于控制功率半导体部件的方法和控制电路
- Patent Title: Method and control circuit for controlling a power semiconductor component
- Patent Title (中): 用于控制功率半导体部件的方法和控制电路
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Application No.: US13409753Application Date: 2012-03-01
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Publication No.: US08575974B2Publication Date: 2013-11-05
- Inventor: Matti Laitinen , Jukka Palomäki
- Applicant: Matti Laitinen , Jukka Palomäki
- Applicant Address: FI Helsinki
- Assignee: ABB Oy
- Current Assignee: ABB Oy
- Current Assignee Address: FI Helsinki
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP11156403 20110301
- Main IPC: H03K3/00
- IPC: H03K3/00

Abstract:
An exemplary method and a control circuit are disclosed for controlling a power semiconductor component by producing a control signal (Ucin) for controlling the component, forming a second control signal (Ucout) in the potential of the controlled component from the control signal (Ucin), measuring a current flowing through the component, and comparing the measured current with a set limit. A fault signal (Ufault) having a logical state is provided on the basis of the comparison between the measured current and the set limit, producing a component control signal (Uave) from the fault signal (Ufault) and the second control signal (Ucout). If a fault is indicated, the component control signal has a value between high and low states, and otherwise the state of the component control signal (Uave) equals the state of the second control signal (Ucout).
Public/Granted literature
- US20120223744A1 CONTROL OF SEMICONDUCTOR COMPONENT Public/Granted day:2012-09-06
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