Methods and circuits for tracking and sequencing multiple...

Details Methods and circuits for tracking and sequencing multiple... Methods and circuits for tracking and sequencing multiple...

2004-01-20

2008-03-11

Deberadinis, Robert L. (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Selective or optional sources

Reexamination Certificate

active

07342328

ABSTRACT:
The present invention relates to methods and circuits for controlling outputs of one or more slave power supplies in one or more defined relationships to a master signal. The defined relationships include but are not limited to coincident tracking, offset tracking, ratiometric tracking, and supply sequencing.

REFERENCES:
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patent: 6191569 (2001-02-01), Arbetter et al.
Galinski, Martin; “Circuit manages power-up sequencing”; EDN; Oct. 31, 2002.
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Linear Technology; “LTC2920-1/LTC2920-2 Single/Dual Power Supply Margining Controller”; Datasheet, Initial Release; Mar. 2003.
Linear Technology; “LTC3205 Multidisplay LED Controller”; Datasheet, Initial Release; Aug. 2003.
Maxim Integrated Products; “MAX5039/MAX5040 Voltage-Tracking Controllers for PowerPC, DSPs, and ASICs”; Datasheet; May 2002.
Summit Microelectronics, Inc.; “SMT4004 Quad Trakking™ Power Supply Manager”, Datasheet; Jun. 9, 2003.
Summit Microelectronics, Inc.; “SMT4004 Quad Tracking Power Supply Manager Advanced Current Sensing Schemes and Power MOSFET Selection”; Application Note 20; Feb. 21, 2002.
Summit Microelectronics, Inc.; “SMT4004 Quad Tracking Power Supply Manager Windows GUI Users Guide and Configuration Register Descriptions”; Application Note 22; Aug. 23, 2002.
Summit Microelectronics, Inc.; “SMT4004-Advanced Voltage Tracking Methods Boost Efficiency, Reliability”; Application Note 26, Advance Information; Oct. 16, 2002.
Summit Microelectronics, Inc.; “Xilinx Virtex™-E, Spartan™-IIE FPGA and SMT4004 TRAKKER™ Supply Manager Reference Design: Procedure and Results Summary”; Application Note 31; Jan. 7, 2003.
Summit Microelectronics, Inc.; “Lossless Tracking Procedure and Results Summary Reference Design: Xilinx Virtex™-E, Spartan™-IIE FPGA and SMT4004 TRAKKER™”; Application Note 34; Jan. 7, 2003.

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