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US 8,570,022 B2Granted
Multiphase DC to DC voltage converter
AssigneeRobert Bosch GmbH
InventorsBoris Blaumeiser, Dirk Kranzer, Markus Konzili
Life of this patent
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Abstract
A multiphase DC to DC voltage converter which has multiple converter cells which are situated parallel to one another and are clocked with a time offset. Furthermore, it contains one magnetic measuring bridge between the outputs of each two converter cells.
Claims5
A multiphase DC to DC voltage converter, comprising:
- a plurality of converter cells which are situated parallel to one another and clocked with a time offset;
- and
- a magnetic measuring bridge between outputs of each two of the converter cells;
- wherein one of the measuring bridges has a core on which two windings having an identical number of turns wound in opposite directions are installed;
- wherein the core has an air gap in which a Hall sensor is positioned;
- wherein the Hall sensor is connected to a control system via an A/D converter, the control system providing control signals which influence clock signals of the converter cells on an output side;
- and
- wherein the control system has multiple controllers which are situated parallel to one another, each being assigned to one of the converter cells and outputs of the controllers being each connected to a corresponding PWM generator via an adder.
5 more elements
Dependencies are inferred from the claim text.