Fast-switching circuit assembly for a converter

Patent metadata

Field	Value
Publication number	US-10418893-B2
Application number	US-201615579314-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	Jun 12, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

The disclosure relates to electrical converters. The teachings thereof may be embodied in a circuit assembly for an electrical converter. For example, a circuit assembly for an electrical converter may include a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch. The respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board.

First claim

What is claimed is:

1. A circuit assembly for an electrical converter, the assembly comprising:
a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch;
wherein:
the respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board; and
the circuit assembly further comprises a logic circuit interconnected with each respective gate driver circuit at least two parallel-connected switching units for simultaneous actuation of the gate driver circuits in response to a switching signal.

2. The circuit assembly as claimed in claim 1 , wherein a respective clearance between a respective gate driver circuit and respective gate is smaller than 2 centimeters.

3. The circuit assembly as claimed in claim 1 , wherein each semiconductor switches comprises a wide-bandgap semiconductor technology.

4. The circuit assembly as claimed in claim 1 , wherein at least two of the switching units are arranged on a single carrier circuit board.

5. The circuit assembly as claimed in claim 1 , wherein the semiconductor switches each comprise a discrete component.

6. The circuit assembly as claimed in claim 1 , further comprising a snubber circuit connected in parallel with the switching gap of the semiconductor switch in at least one of the switching units.

7. The circuit assembly as claimed in claim 1 , wherein the carrier circuit board comprises an insulated metal substrate.

8. A converter comprises an inverter or a rectifier, the converter comprising:
a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch;
wherein:
the respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board; and

the converter further comprises a logic circuit interconnected with each respective gate driver circuit at least two parallel-connected switching units for simultaneous actuation of the gate driver circuits in response to a switching signal.

9. The converter as claimed in claim 8 , further comprising a control device to operate the respective circuit assemblies of at a switching frequency which is greater than 50 kHz.

Assignees

• Siemens Ag

Inventors

• Blum Manuel
• Kiffe Walter
• Komma Thomas
• Poebl Monika
• Finkenzeller Michael

Classifications

• H02M7/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H03K17/687

  the devices being field-effect transistors · CPC title

• H05K1/0237

  High frequency adaptations (H05K1/0216 takes precedence) · CPC title

• H03K17/161

  in field-effect transistor switches · CPC title

• H02K11/33

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title