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US 2024/0405585 A1Published application
Power delivery apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsKeonwoo KIM, Moonyoung KIM
Life of this patent
Estimating the term…
Abstract
Disclosed is a power delivery apparatus for transmitting power through a universal serial bus (USB). The power delivery apparatus may include a driving circuit configured to output an internal operating voltage by an induced electromotive force due to a current flowing through a primary coil. The driving circuit may include secondary coils having different winding directions and may be configured such that a plurality of rectification circuits are coupled in series.
Claims20
A power delivery (PD) apparatus, comprising:
- A primary-side input rectification circuit configured such that a current flows through a primary coil by alternately operating at least two switching elements, comprising at least one switch, according to a magnitude of a charging supply voltage to be obtained;
- a first driving circuit configured to output the charging supply voltage by an induced electromotive force due to a current flowing through the primary coil;
- and
- a second driving circuit configured to output an internal operating voltage by the induced electromotive force due to the current flowing through the primary coil,
- wherein the second driving circuit includes secondary coils having different winding directions and is configured such that a plurality of rectification circuits are coupled in a form stacked in series.
2 more elements
A power delivery (PD) apparatus of a universal serial bus (USB), comprising:
- a flyback converter configured to use an input voltage to output a variable charging supply voltage within a specified range, and an operating voltage having a constant magnitude;
- and
- a flyback converter chip, comprising circuitry, configured to use the operating voltage to drive the flyback converter,
- wherein the flyback converter comprises a transformer including a primary coil and a plurality of secondary coils, and rectification circuits having a same structure electrically connected to each of the plurality of secondary coils;
- and
- wherein the flyback converters are configured such that voltages obtained in parallel by the two rectification circuits electrically connected to two secondary coils having the same number of turns and opposite winding directions, among the plurality of secondary coils, are added to be output as the operating voltage.
3 more elements
Dependencies are inferred from the claim text.