Title:
MANUFACTURING METHOD FOR CHOPPER CIRCUIT, CHOPPER CIRCUIT, DC/DC CONVERTER, FUEL CELL SYSTEM, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2011/158073
Kind Code:
A3
Abstract:
A manufacturing method for a chopper circuit that uses soft switching operation includes: identifying devices that constitute the chopper circuit and that are relevant to determining time at which a voltage applied to a main switching element during operation of the chopper circuit takes a minimum value; calculating a design representative value of an observed device that is at least one of the identified devices in such a manner that a plurality of the observed devices are prepared and then variations from a rated value in electrical characteristic of each observed device are subjected to statistical processing; and setting the representative value, instead of the rated value of the electrical characteristic of the observed device, in a switching control unit that controls the timings of switching of the main switching element and an auxiliary switching element on the basis of the electrical characteristics of the identified devices.
Inventors:
KANEKO TOMOHIKO (JP)
Application Number:
PCT/IB2011/000763
Publication Date:
February 16, 2012
Filing Date:
April 08, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KANEKO TOMOHIKO (JP)
KANEKO TOMOHIKO (JP)
International Classes:
H02M3/158
Foreign References:
| US20070164764A1 | 2007-07-19 | |||
| EP1990901A2 | 2008-11-12 |
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