Unlock instant, AI-driven research and patent intelligence for your innovation.

Control device and bridge circuit comprising such a control device

A technology of control devices and bridge circuits, applied in circuits, emergency protection circuit devices, output power conversion devices, etc., can solve problems such as high manufacturing costs

Pending Publication Date: 2022-06-07
THYSSENKRUPP PRESTA AG +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these solutions entail high manufacturing costs, especially for phase isolators, since there is only an indirect correlation between the angular velocity and the current interruption capability of the phase isolator, and thus require overdimensioning of the phases in order to prevent high voltage peaks. Isolator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control device and bridge circuit comprising such a control device
  • Control device and bridge circuit comprising such a control device
  • Control device and bridge circuit comprising such a control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] figure 1 A three-phase bridge circuit 8 is shown as an inverter with first, second and third bridge branches 9 , 10 and 11 . These bridge branches are arranged in parallel with each other. Each bridge branch 9, 10, and 11 has a high-side field effect transistor 12, 14, 16 and a low-side field effect transistor 13, 15, 17, respectively, and an AC output 23, 24, 25. The HS-FETs 12, 14 and 16 are respectively connected with their drain connections to the positive potential of the DC voltage, while the LS-FETs 13, 15 and 17 are connected with their source connections to the negative potential of the DC voltage. Each FET is shown with its body diode formed in parallel between the drain and source connections. The HS-FET 12 of the first bridge branch 9 is the body diode 18 and the LS-FET 13 of the first bridge branch 9 is the body diode 19 . In the other two bridge branches 10 and 11 , the FETs are constructed identically. Each FET is connected to a voltmeter to measure,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a bridge circuit control device for a bridge circuit for controlled alternating current generation. The control device has: a voltmeter for each FET of the bridge branch, wherein each voltmeter can be connected to the respective FET for drain-source voltage measurement and outputting a measured value and / or a state value; a field effect transistor as a phase isolator for each alternating current output, one or more phase isolators being respectively connectable to the alternating current output and being respectively switchable by a control signal; and the logic circuit is used for detecting the numerical value of the voltmeter and outputting the control signals to the phase isolators respectively. The invention further relates to a bridge circuit having such a control device.

Description

technical field [0001] The invention relates to a control device for a power module or inverter, in particular a control device for a bridge circuit for controlled alternating current generation. The invention also relates to a bridge circuit with such a control device. Background technique [0002] Inverter (English Inverter) is an electrical device that converts DC voltage to AC voltage. A bridge circuit is an exemplary embodiment of an inverter, which has one or more bridge branches connected in parallel and can generate a sinusoidal alternating current or alternating voltage by means of a pulse-width modulated signal. The bridge branch is formed by at least one high-side (HS for short) switch and at least one low-side (LS for short) switch, wherein the AC current output terminal is located between the two switches. The HS switch is at one potential of the DC voltage and the LS switch is at the other potential of the DC voltage. [0003] Currently, semiconductor circui...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/5387H03K17/16H02H7/122H02M1/32H03K17/0814H02M1/00
CPCH02M7/53871H03K17/162H02H7/1225H02M1/32H03K17/08142H02M1/0061H02M1/0009
Inventor 加布里·卡拉普斯
Owner THYSSENKRUPP PRESTA AG