Invention Grant
- Patent Title: Converter circuit
- Patent Title (中): 转换电路
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Application No.: US14508467Application Date: 2014-10-07
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Publication No.: US09391503B2Publication Date: 2016-07-12
- Inventor: Ki-Bum Park , Sami Pettersson , Francisco Canales
- Applicant: ABB Oy
- Applicant Address: FI Helsinki
- Assignee: ABB OY
- Current Assignee: ABB OY
- Current Assignee Address: FI Helsinki
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP13187505 20131007
- Main IPC: H02M5/45
- IPC: H02M5/45 ; H02M1/32 ; H02H7/12 ; H02H7/122 ; H02H7/125 ; H02M5/42 ; H02M5/458

Abstract:
A converter circuit with short-circuit protection can include a plurality of phase legs having a series connection of normally-on switches, between voltage rails of a DC voltage link, a DC link capacitor, and AC voltage connection points between the normally-on switches. A phase-to-phase short-circuit protection circuit includes a parallel connection of a resistive component and a controllable switch. The phase-to-phase short-circuit protection circuit including a first terminal connected to an AC voltage connection point and a second terminal forms an input or an output of the converter circuit; and a controllable switch is connected in series with the DC link capacitor. Upon lack of control of the normally-on switches the controllable switch of the at least one phase-to-phase short-circuit protection circuit and the controllable switch of the phase leg short-circuit protection circuit are adapted to be controlled to a non-conductive state.
Public/Granted literature
- US20150098258A1 CONVERTER CIRCUIT Public/Granted day:2015-04-09
Information query
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