Control device for power supply line

Patent metadata

Field	Value
Publication number	US-2017366179-A1
Application number	US-201515538730-A
Country	US
Kind code	A1
Filing date	Dec 18, 2015
Priority date	Dec 23, 2014
Publication date	Dec 21, 2017
Grant date	—

Abstract

A control device for connecting between two portions of an electrical power supply line. The device includes a bipolar transistor including a wide bandgap semiconductor material and having its emitter connected to one portion of the power supply line, its collector connected to another portion of the power supply line, and the device also including control connected to the base of the transistor.

First claim

1 . A control device to be arranged between two portions of an electrical power supply line, the device comprising a bipolar transistor comprising a wide bandgap semiconductor material and having its emitter connected to one portion of the power supply line, its collector connected to another portion of the power supply line, and the device also comprising control means connected to the base of said transistor and configured to operate in an open loop.

2 . The device according to claim 1 , wherein said control means are configured to deliver a current to the base of said transistor, the value of that current being selected to limit the current flowing in the power supply line portions to a maximum value.

3 . The device according to claim 1 , wherein the control means comprise a switch configured to connect the base of said transistor either to an input of the device for receiving a first transistor control current, or else to at least one other input of the device for receiving a second transistor control current.

4 . The device according to claim 1 , wherein the control means comprise an adjustable voltage generator and a resistor.

5 . The device according to claim 4 , further comprising at least one diode connected in series with the resistor and the adjustable voltage generator.

6 . The device according to claim 1 , wherein the electrical power supply line is for receiving a high voltage direct current.

7 . The device according to claim 1 , wherein the wide bandgap semiconductor material is selected from the group constituted by: silicon carbide; gallium nitride; and gallium arsenide.

8 . The system including a power supply, a load, and at least one power supply line connecting said power supply to said load, and at least one device according to claim 1 connected between two portions of said at least one power supply line.

Assignees

• Safran Electrical & Power

Inventors

• Balpe Cedric
• Lhommeau Tony

Classifications

• H02H3/025 Primary

  Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection · CPC title

• H02H3/087

  for DC applications · CPC title

• H03K17/08112

  in bipolar transistor switches (H03K17/0812, H03K17/0814 take precedence) · CPC title

• H03K17/60

  the devices being bipolar transistors (bipolar transistors having four or more electrodes H03K17/72) · CPC title

• H02H9/02 Primary

  responsive to excess current {(current limitation for voltage regulators G05F1/573; disconnection after limiting H02H3/025)} · CPC title