Methods and apparatus to provide self-tracking pre-driver controls
First Claim
Patent Images
1. A method comprising:
- charging a first terminal associated with a first capacitive element to a first voltage with respect to ground and a second terminal associated with a second capacitive element to a second voltage with respect to ground;
changing the first voltage and the second voltage with respect to ground by changing a swing voltage;
selecting one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology; and
driving a transistor using the selected voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and apparatus for a self-tracking high-side pre-driver control are described. In an example, a method is described comprising charging a first terminal associated with a first capacitive element to a first voltage with respect to ground and a second terminal associated with a second capacitive element to a second voltage with respect to ground, changing the first voltage and the second voltage with respect to ground by changing a swing voltage, selecting one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology and driving a transistor using the selected voltage.
10 Citations
14 Claims
-
1. A method comprising:
-
charging a first terminal associated with a first capacitive element to a first voltage with respect to ground and a second terminal associated with a second capacitive element to a second voltage with respect to ground; changing the first voltage and the second voltage with respect to ground by changing a swing voltage; selecting one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology; and driving a transistor using the selected voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A circuit comprising:
-
an input and an output; a first capacitive element to provide a first voltage and a second capacitive element to provide a second voltage; a first switching element to change the first voltage and the second voltage with respect to ground; a second switching element to select one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology; and a pre-driving element to drive a transistor using the selected voltage as an upper output limit and the swing voltage as a lower output limit. - View Dependent Claims (9, 10, 11, 12, 14)
-
-
13. A pre-driver control comprising:
-
an input and an output; a first bootstrap to provide a first voltage and a second bootstrap to provide a second voltage; a first switch to change the first voltage and the second voltage; a second switch to select one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology; and a pre-driver to drive a transistor.
-
Specification