IP Library Granted Patent US 9,000,746
Granted Patent B2
US 9,000,746 · App. 13/298,694 · Granted Apr 7, 2015

Power converter with split power supply

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Quick Facts
Patent No.
US 9,000,746
App. No.
13/298,694
Granted
Apr 7, 2015
Kind
B2
Abstract

A power converter driver that is supplied with two different voltages.

Claims (12)

1. A driver arrangement comprising:

a high side predriver to drive a high side switch of a driver half-bridge included in said driver arrangement, said high side predriver supplied by a first voltage;

a low side predriver to drive a low side switch of said driver half-bridge, said low side predriver supplied by a second voltage greater than said first voltage;

said driver half-bridge coupled between said first voltage and ground.

2. The driver arrangement of claim 1 , wherein said driver half-bridge is configured to drive a synchronous switch of a buck converter.

3. The driver arrangement of claim 2 , wherein said second voltage is supplied from an external source, and said first voltage is derived from a bus voltage of said buck converter.

4. The driver arrangement of claim 2 , wherein said first voltage is supplied from an external source, and said second voltage is derived from a bus voltage of said buck converter.

5. The driver arrangement of claim 3 , wherein said bus voltage is provided by a linear drop out regulator.

6. The driver arrangement of claim 4 , wherein said bus voltage is provided by a linear drop out regulator.

7. The driver arrangement of claim 1 , wherein said high side predriver includes a high side predriver half-bridge having a high side predriver switch and a low side predriver switch, wherein said high side predriver half-bridge is connected between said first voltage and a ground voltage, and wherein said high side predriver switch is coupled to a predriver driver which is supplied by said second voltage.

8. The driver arrangement of claim 1 , wherein said high side predriver includes a high side predriver half-bridge having a high side predriver switch and a low side predriver switch, wherein said high side predriver half-bridge is connected between said first voltage and a ground voltage, and wherein said low side predriver switch is coupled to a predriver driver which is supplied by said second voltage.

9. The driver arrangement of claim 1 , wherein said high side predriver includes a high side predriver half-bridge having a high side predriver switch and a low side predriver switch, wherein said high side predriver half-bridge is connected between said first voltage and a ground voltage, and wherein said high side predriver switch and said low side predriver switch are coupled to a predriver driver which is supplied by said second voltage.

Assignments (2)
CHANGE OF NAME Recorded Jul 23, 2018
From: INTERNATIONAL RECTIFIER CORPORATION
To: INFINEON TECHNOLOGIES AMERICAS CORP.
Reel/Frame 046612/0968 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2011
From: BRIERE, MICHAEL A.; ZHANG, JASON; BAHRAMIAN, HAMID TONY
To: INTERNATIONAL RECTIFIER CORPORATION
Reel/Frame 027245/0508 →