Common gate drive circuit for switching high voltage device
AssigneeRenesas Electronics America Inc.
InventorTetsuo SATO
Life of this patent
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Abstract
Semiconductor devices for driving transistors in a power device are described. A semiconductor device can include a voltage source configured to provide a fixed bias voltage to a first device implemented as a common gate device. The semiconductor device can further include a second device connected in series with the first device. The current output of the second device can be connected to a source terminal of the first device. The semiconductor device can further include a driver configured to drive the second device to perform current control on the first device.
Claims20
A semiconductor device comprising:
- a voltage source configured to provide a fixed bias voltage to a first device implemented as a common gate device;
- a second device connected in series with the first device, wherein a current output of the second device is connected to a source terminal of the first device;
- a driver configured to drive the second device to perform current control on the first device.
A semiconductor device comprising:
- a first device that operates as a common gate device;
- a driver integrated circuit (IC) comprising:
- a voltage source configured to provide a fixed bias voltage to the first device;
- a second device connected in series with the first device, wherein a current output of the second device is connected to a source terminal of the first device;
- a driver configured to drive the second device to perform current control on the first device.
An apparatus comprising:
- a controller configured to output a pulse width modulation (PWM) signal;
- a power converter comprising:
- a first device that operates as a common gate device;
- a driver integrated circuit (IC) comprising:
- a voltage source configured to provide a fixed bias voltage to the first device;
- a second device connected in series with the first device, wherein a current output of the second device is connected to a source terminal of the first device;
- a driver configured to use the PWM signal to drive the second device to perform current control on the first device.
Dependencies are inferred from the claim text.