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Inverter

A voltage limiting, inverter technology, applied in electrical components, motor control, motors, etc., can solve the problems of intensive, complex cost, etc.

Inactive Publication Date: 2012-07-25
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system is equally complex and cost intensive as the previous ones, and cannot be implemented without the use of control logic

Method used

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Embodiment Construction

[0019] In the following description and drawings, the same reference numerals correspond to elements with the same or similar functions.

[0020] figure 1 A bridge circuit 1 for driving an inverter or an inverter bridge circuit 1 according to the invention is shown, which bridge circuit has a voltage limiting system 2, in particular for preventing The voltage of the synchronous motor or permanent magnet excited synchronous motor acts in reverse.The (drive) inverter is, for example, a component of a converter known in the prior art.

[0021] For example, the converter has, in a known manner, a rectifier unit (not shown), which supplies an intermediate circuit in which, for example, an intermediate circuit capacitor is arranged. The intermediate circuit, for example, converts the intermediate circuit voltage U ZK , in particular as a DC voltage to the input 1' of an inverter 2, for example a bridge circuit 1 for the inverter, in order to generate an AC voltage for driving the ...

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Abstract

The invention relates to an inverter, in particular for supplying energy to a three-phase motor (3) of a motor vehicle. Said inverter comprises a half-bridge (1a, 1b, 1c) for electrically connecting to the three-phase motor (3), characterised in that said half-bridge (1a, 1b, 1c) comprises a voltage limiting element (8) which is electrically connected to an inlet (6b) and an outlet (6c) of a power semi-conductor switch (5a; 5b) of the half bridge (1a, 1b, 1c), said voltage limiting element establishing a high-resistance or low resistance connection in a defined manner between the inlet (6b) and the outlet (6c) of the power semi-conductor switch (5a, 5b) in accordance with the voltage value of the voltage applied between the inlet (6b) and the outlet (6c) of the power semi-conductor switch (5a; 5b).

Description

technical field [0001] The invention relates to an inverter according to the preamble of claim 1 . Background technique [0002] In particular, a converter is used to actuate the motor, wherein the motor is supplied, for example, by means of a DC power source (for example a battery), but requires one or more AC phases for operation. In particular in the field of motor vehicle drive technology, such machines are, for example, AC motors, for example permanent-magnet-excited or separately-excited synchronous motors. [0003] The converter has, for example, a motor-side inverter or drive inverter, which converts a DC voltage from an intermediate circuit such as a converter, in particular from an intermediate circuit with an intermediate circuit capacitor, into a DC voltage of a desired frequency. AC voltage in order to control the direction of rotation and speed of the AC motor to be driven. These drive inverters are used in particular in motor vehicles, for example electrical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32H02M7/797B60L3/08H02H7/08
CPCH02M1/32H02M7/797Y02T10/7241B60L2210/40Y02T10/642B60L3/08H02H7/0833H02P29/024H02H7/122H02P29/0241Y02T10/64Y02T10/72
Inventor 罗伯特·雅努谢夫斯基凯·博恩特雷格
Owner ZF FRIEDRICHSHAFEN AG