Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-03-29
2008-10-28
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
Self-regulating
Using a three or more terminal semiconductive device as the...
Reexamination Certificate
active
07443153
ABSTRACT:
A current sink circuit is disclosed. An apparatus according to aspects of the present invention includes a sensing element, a pass element coupled to the sensing element and a setting element coupled to the pass element. The setting element provides both a voltage threshold level and a current regulation reference. The pass element is to pass current conducted through the current sink circuit in response to the setting element. The current conducted through the current sink circuit is substantially zero when a voltage applied across the current sink circuit is below the voltage threshold level. A signal generated by the sensing element is regulated in response to the current regulation reference by regulating a current conducted through the pass element when a voltage applied across the current sink circuit is above the voltage threshold level.
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Berhane Adolf
Blakely , Sokoloff, Taylor & Zafman LLP
Power Integrations, Inc.
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