Driving circuit for a switching circuit, having improved driving performance
AssigneeSTMicroelectronics International N.V.
InventorsGiovanni Sicurella, Andrea Villot, Francesco Giorgio
Life of this patent
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Abstract
In embodiments, a driving circuit is provided for a switching circuit arranged between an input node at an input voltage and a reference potential node, and including a high-side switch circuit and a low-side switch circuit. The driving circuit has a high-side driver with a first supply node couplable to the input node, at least one output couplable to the high-side switch circuit, and configured to switch the high-side switch circuit. The driving circuit has a low-side driver with a first supply node couplable to the input node, at least one output couplable to the low-side switch circuit, and configured to switch the low-side switch circuit.
Claims19
A driving circuit for a switching circuit, the switching circuit arranged between an input node and a reference potential node, the driving circuit comprising:
- a high-side driver, comprising:
- a first supply node couplable to the input node supplied by an input voltage, and
- a first output node couplable to a high-side switch circuit of the switching circuit;
- and
- a low-side driver, comprising:
- a second supply node couplable to the input node, and
- a second output node couplable to a low-side switch circuit of the switching circuit,
- wherein the high-side driver is configured to switch the high-side switch circuit by coupling the first output node to the first supply node, and
- wherein the low-side driver is configured to switch the low-side switch circuit by coupling the second output node to the second supply node.
A driving circuit for a switching circuit arranged between an input node at an input voltage and a reference potential node and comprising a high-side switch circuit and a low-side switch circuit, the driving circuit comprising:
- a high-side driver including a first supply node coupled to the input node, at least one output coupled to the high-side switch circuit, a second supply node coupled to a bootstrap node of a bootstrap capacitive element and configured to switch the high-side switch circuit;
- and
- a low-side driver including a first supply node coupled to the input node, at least one output coupled to the low-side switch circuit, and configured to switch the low-side switch circuit,
- wherein the high-side driver, to switch the high-side switch circuit, is configured to couple the respective at least one output to at least one of the respective first supply node and the respective second supply node.
A driving circuit for a switching circuit arranged between an input node at an input voltage and a reference potential node and comprising a high-side switch circuit and a low-side switch circuit, the driving circuit comprising:
- a high-side driver including a first supply node coupled to the input node, at least one output coupled to the high-side switch circuit, and configured to switch the high-side switch circuit;
- and
- a low-side driver including a first supply node coupled to the input node, at least one output coupled to the low-side switch circuit, a second supply node coupled to a driving node of the driving circuit, and configured to switch the low-side switch circuit,
- wherein the low-side driver, to switch the low-side switch circuit, is configured to couple the respective at least one output to at least one of the respective first supply node and the respective second supply node.
Dependencies are inferred from the claim text.