Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2009-06-19
2010-10-19
Luu, An T (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S512000
Reexamination Certificate
active
07816967
ABSTRACT:
An apparatus for generating a pulse having a pulse width substantially independent of process variation in resistive and capacitive values. The apparatus includes a PTAT current source to generate a first current to charge a capacitor to produce a first voltage; a ΔVGS current source to generate a second current through a resistor to produce a second voltage V2; a comparator to generate the pulse in response to the first and second voltages; and a circuit to enable the charging and discharging of the capacitor. The use of the distinct current sources (e.g., PTAT and ΔVGS) enables the pulse generator to be configured substantially process independent of resistive value. The use of a MOSFET capacitor for the capacitor enables the pulse generator to be made substantially process independent of capacitive value. An additional bandgap current source in parallel with the ΔVGS current source reduces the pulse width dependency on temperature.
REFERENCES:
patent: 5592111 (1997-01-01), Wong et al.
patent: 5604467 (1997-02-01), Matthews
patent: 5926042 (1999-07-01), Talaga, Jr.
patent: 7413342 (2008-08-01), Mukherjee
patent: 7443226 (2008-10-01), Holloway et al.
patent: 2008/0238518 (2008-10-01), Guo
Nagarajan Karthik
Oner Mustafa Ertugrul
Fountain George L.
Fountain Law Group, Inc.
Luu An T
Maxim Integrated Products Inc.
LandOfFree
System and method for compensating pulse generator for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for compensating pulse generator for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for compensating pulse generator for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4207494