Electricity: power supply or regulation systems – Input level responsive
Reexamination Certificate
2005-02-01
2005-02-01
Nguyen, Matthew V. (Department: 2838)
Electricity: power supply or regulation systems
Input level responsive
C713S330000
Reexamination Certificate
active
06850048
ABSTRACT:
A power supply controller controls power supplies for power-up and/or shut-down in a desired sequence. An input voltage for the power supplies powers, and is monitored by, a first control unit having outputs for enabling the power supplies. A second control unit monitors output voltages of the power supplies, and an isolating signal coupler couples signals in both directions between the first and second control units. The second control unit is powered in an isolated manner from the input voltage, conveniently via a transformer constituting the signal coupler. The control units together respond to the monitored voltages for enabling the power supplies in accordance with the desired sequence, information for which can be stored in a non-volatile store. The second control unit can also include enable outputs isolated from the input voltage, and trim outputs for adjusting the monitored voltages.
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Brown David Alan
Colbeck Roger Peter
Horwitz Hartley Fred
Liu Yan-Fei
Orr Raymond Kenneth
Nguyen Matthew V.
Potentia Semiconductor Inc.
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