Method for driving a circuit arrangement for power semiconductors
AssigneeZF Friedrichshafen AG
InventorsIllia Manushyn, Steffen Heider, Johannes Hager
Life of this patent
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Abstract
A method for controlling a circuit assembly for power semiconductors in an inverter that has at least one phase, containing at least two switches that are complementary to each other and which are activated alternatingly in a switching process, wherein an on-pulse is applied to the complementary switch for a predefined period of time at a predefined time after starting a switching process for the active switch.
Claims14
A method for controlling a circuit assembly for power semiconductors in an inverter that has at least one phase, containing at least two switches that are complementary to each other, which are activated alternatingly in a switching process, wherein, in the switching process, at least one of the at least two switches is an active switch and another of the at least two switches is a complementary switch, the method comprising:
- applying an on-pulse to the complementary switch for a predefined period of time at a predefined time after starting the switching process for the active switch.
A circuit assembly comprising:
- at least one high-side switch and at least one low-side switch, each of which comprises at least one transistor,
- wherein the circuit assembly is part of an inverter in an electronics module for controlling an electric drive in a vehicle equipped with the electric drive,
- wherein the at least one high-side switch and the at least one low-side switch are configured to be activated alternatingly in a switching process, wherein, in the switching process, at least one of the at least one high-side switch or the at least one low-side switch is an active switch and another is a complementary switch, and
- wherein the circuit assembly is configured to apply an on-pulse to the complementary switch for a predefined period of time at a predefined time after starting the switching process for the active switch.
A control unit configured to control a circuit assembly that contains at least one high-side switch and at least one low-side switch, each of which has at least one transistor,
- wherein the control unit is configured to:
- activate the at least one high-side switch and the at least one low-side switch alternatingly in a switching process, wherein, in the switching process, at least one of the at least one high-side switch or the at least one low-side switch is an active switch and another is a complementary switch;
- and
- apply an on-pulse to the complementary switch for a predefined period of time at a predefined time after starting the switching process for the active switch.
Dependencies are inferred from the claim text.