Hsin-Chih Lee

20120029722, Feb 2, 2012

Apr 30, 2009

13/263693

Hsin-Chih Lee - Houston TX, US
David P. Mohr - Spring TX, US
Zachary J. Gerbozy - Spring TX, US

G06F 1/28

700297

Method and system for load sharing in a multiple power supply system. At least some of the illustrative embodiments are power supply units including a switching circuit, a coarse adjustment circuit coupled to the switching circuit (the coarse adjustment circuit configured to send an internal command to the switching circuit to modify a pulse width modulated signal that controls output current of the power supply unit), and a communication port coupled to the switching circuit. The power supply unit configured to receive from an external device over the communication port an external command to modify the pulse width modulated signal of the switching circuit. The power supply unit is also configured to modify the output current, the amount of modification based on the external command, and the internal command from the coarse adjustment circuit.

20130026832, Jan 31, 2013

Apr 22, 2010

13/387169

Hsin-Chih Lee - Houston TX, US
Daniel Humphrey - Houston TX, US
Zachary J. Gerbozy - Spring TX, US
David Paul Mohr - Spring TX, US

H02J 4/00

307 43

A method for balancing input current with at least two parallel power supplies, including the steps of defining an input current difference tolerance, measuring input current from the at least two parallel power supplies, calculating an absolute value of the difference between the two measured input currents, and when the calculated value exceeds the tolerance, performing the subset of steps including employing an adjustment technique to calculate new operating parameters for the two power supplies, configuring the two power supplies with the new operating parameters, and repeating the steps above except for the defining step.