US 2020/0091852 A1Published application

Circuit arrangement and method for operating a circuit arrangement

AssigneeMartin Kfz-Technik GmbH

InventorJurgen FRANK

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Abstract

A circuit arrangement for generating a three-phase rotating field at least at an electrical consumer including at least one mains voltage input including a single-phase alternating current, a first phase strand connected to the mains voltage input and the electrical consumer, whose transported voltage includes a first outer conductor, a second phase strand, whose transported voltage corresponds to a second outer conductor, an energy storage, a switching element, through which the energy storage can be connected via a third phase strand for generating a third outer conductor, and a control unit that can detect at least one trigger point of the first phase strand and the switching element can be actuated at least at a detected trigger point of the first outer conductor of the first phase strand to close or open the third phase strand and to generate the third outer conductor.

Claims10

Dependent claims

A circuit arrangement for generating a three-phase rotating field at least at an electrical consumer comprising:

at least one mains voltage input comprising a single-phase alternating current,
at least one first phase strand connected to the mains voltage input and the electrical consumer, whose transported voltage comprises a first outer conductor,
at least one second phase strand connected to the mains voltage input and the electrical consumer, whose transported voltage corresponds to a second outer conductor 120° offset from the first outer conductor,
at least one energy storage, which is connected to the mains voltage input and in which at least temporary electrical energy is able to be stored,
at least one switching element through which the energy storage is able to be connected via a third phase strand with the electrical consumer for generating a third outer conductor, and
at least one control unit by means of which at least one trigger point of the first phase strand is able to be detected and the switching element is able to be actuated at least at a detected trigger point of the first outer conductor of the first phase strand to close or open the third phase strand and to generate the third outer conductor.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/565,586Filed 10 Sep 2019
Priority: DE 102018122913.518 Sep 2018
Published: 19 Mar 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02M 5/14
Using transformers: for conversion between circuits of different phase number
H02P 25/26
Variable impedance in stator or rotor circuit: with arrangements for controlling secondary impedance
H02P 1/265
For starting an individual polyphase induction motor: means for starting or running a triphase motor on a single phase supply
H02P 1/44
For starting an individual single-phase induction motor: by phase-splitting with a capacitor