Invention Grant
- Patent Title: Determining the dead time in driving a half-bridge
- Patent Title (中): 确定驾驶半桥的死区时间
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Application No.: US13592907Application Date: 2012-08-23
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Publication No.: US08907685B2Publication Date: 2014-12-09
- Inventor: Martin Feldtkeller
- Applicant: Martin Feldtkeller
- Applicant Address: AT Villach
- Assignee: Infineon Technologies Austria AG
- Current Assignee: Infineon Technologies Austria AG
- Current Assignee Address: AT Villach
- Agency: Dicke, Billig & Czaja, PLLC
- Main IPC: G01R27/26
- IPC: G01R27/26 ; H02M1/38 ; H02M3/158 ; G01R19/12 ; H03K17/28

Abstract:
Disclosed is a circuit arrangement for determining a temporal change of an output voltage of a half-bridge circuit during a dead time. In one embodiment, the circuit arrangement includes a first input for applying the output voltage. A capacitive network includes a first and a second circuit node capacitively coupled to the input, and having a terminal for a reference potential. A recharging circuit during the switched-on phase of one of a first and second switching elements, adjusts electrical potentials of the first and second nodes, the electrical potentials each being different from the reference potential. A comparator arrangement, during the dead time, determines a time difference between such times at which the electrical potentials at the first and second node each assume a given potential value, the time difference being a measure for the change with time of the output voltage.
Public/Granted literature
- US20130147497A1 DETERMINING THE DEAD TIME IN DRIVING A HALF-BRIDGE Public/Granted day:2013-06-13
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