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US 2019/0379375 A1Published application
Devices and methods for driving a semiconductor switching device
AssigneeVishay-Siliconix
InventorSanjay HAVANUR
Life of this patent
Estimating the term…
Abstract
A driver for a semiconductor switching device can be configured to step down a supply voltage to generate a first drive voltage. The driver can also generate a second drive voltage equal to the potential difference between the supply voltage and the first drive voltage. The driver can supply the first drive voltage to a control gate of the semiconductor switching device during a first state of a control signal, and a reverse polarity of the second drive voltage during a second state of the control signal
Claims31
A driver comprising:
- a voltage regulator configured to generate a first drive voltage from a supply voltage, wherein the first drive voltage is less than the supply voltage;
- a storage element configured to store a second drive voltage;
- and
- a drive controller configured to provide the first drive voltage at an output of the driver and a difference between the supply voltage and the first drive voltage as the second drive voltage to the storage element in response to a first state of a control signal, and to provide a reverse polarity of the second drive voltage at the output of the driver in response to a second slate of the control signal.
1 more element
An apparatus comprising:
- a switching device;
- a driver including a gate terminal coupled to a control terminal of the switching device, and a ground terminal coupled a source of the switching device, the driver further including;
- a voltage regulator configured to generate a first drive voltage from a supply voltage, wherein first drive voltage is less than the supply voltage;
- a first storage element configured to store a second drive voltage;
- and
- a drive controller configured to provide the first drive voltage at the control terminal of the switching device and a difference between the supply voltage and the first drive voltage as the second drive voltage to the first storage element in response to a first state of a control signal, and to provide a reverse polarity of the second drive voltage at the control terminal of the switching device in response to second slate of the control signal.
3 more elements
A switching device driver method comprising:
- receiving a supply voltage at a supply terminal;
- receiving a control signal at an input;
- stepping down the supply voltage to a first drive voltage;
- generating a second drive voltage based on a potential difference between the supply voltage and the first drive voltage;
- and
- outputting the first drive voltage in response to a first slate of the control signal and a reverse polarity of the second drive voltage in response to a second state of the control signal at an output.
3 more elements
Dependencies are inferred from the claim text.