Invention Grant
- Patent Title: Segmented driver for a transistor device
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Application No.: US14266279Application Date: 2014-04-30
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Publication No.: US09601985B2Publication Date: 2017-03-21
- Inventor: Ibrahim S. Kandah , Fred T. Brauchler , Steven R. Everson , Kim R. Gauen
- Applicant: FREESCALE SEMICONDUCTOR, INC.
- Applicant Address: US TX Austin
- Assignee: NXP USA, Inc.
- Current Assignee: NXP USA, Inc.
- Current Assignee Address: US TX Austin
- Main IPC: H02M7/5383
- IPC: H02M7/5383 ; H02M1/32 ; H03K17/16 ; H02M1/08 ; H02M7/5387

Abstract:
A segmented driver including at least one drive pin and a sense pin, a driver circuit, a comparator, and a controller. The driver circuit activates a selected drive level between the drive pins and a reference node. The comparator compares a voltage of the sense pin with a threshold voltage and provides a threshold indication when the voltage of the sense pin reaches the threshold voltage. The controller commands the driver circuit to activate a first drive level in response to an off indication, and commands the driver circuit to switch to a second, lower drive level in response to the threshold indication. The driver circuit may be implemented using low resistive current devices. Multiple drive pins may be included, each for selectively activating a corresponding drive path to adjust drive level. The threshold voltage may be set using a current source and resistor, and may be adjusted for temperature.
Public/Granted literature
- US20150318848A1 SEGMENTED DRIVER FOR A TRANSISTOR DEVICE Public/Granted day:2015-11-05
Information query
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