Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Reexamination Certificate
2008-07-08
2008-07-08
Sterrett, Jeffrey L (Department: 2838)
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
C323S207000, C323S222000, C323S283000, C323S285000, C323S299000
Reexamination Certificate
active
11177928
ABSTRACT:
The invention relates to a method for provision of a drive signal for a switch which controls the current drawn by an inductive energy storage element in a power factor correction circuit, in which a control signal which controls the power consumption is available. One drive cycle of the switch comprises:detection of a predetermined storage state of the inductive energy storage element;when the predetermined storage state of the storage element is detected, production of a switching-on level for the drive signal for a regular switched-on duration which is dependent on the control signal or for a maximum switched-on duration which is dependent on an input voltage, when the regular switched-on duration is greater than the maximum switched-on duration; andproduction of a switching-off level for the drive signal for a switched-off duration until the next detection of the predetermined storage state.
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“Boost Controller TDA 4683, Power Factor Controller IC for High Power and Low THD”, Data Sheet, V 1.0, Infineon Technologies AG, May 2003, pp. 1-26, (26 pages).
“TDA-Technical Description AN-PFC-TDA 4863-1”, Application Note, V 1.2, Infineon Technologies AG, Oct. 2003, pp. 1-16, (16 pages).
Frank Wolfgang
Herfurth Michael
Kolberg Sven
Infineon - Technologies AG
Maginot Moore & Beck
Sterrett Jeffrey L
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