Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2008-07-10
2009-12-22
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S112000, C327S587000
Reexamination Certificate
active
07635998
ABSTRACT:
A pre-driver for driving a high-side transistor of a bridge driver is connected to a bridge driver including first and second drive transistors connected in series between a high voltage power supply and ground. A reference circuit generates a reference voltage that varies depending on the output voltage of the bridge driver. In response to the reference voltage, the regulator circuit generates an internal power supply voltage that is substantially higher than the output voltage by a constant value. A buffer circuit generates a drive voltage for driving the first drive transistor based on the internal power supply voltage and the output voltage.
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Bergere Charles
Freescale Semiconductor Inc.
Le Dinh T.
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