Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-12-18
2007-12-18
Nguyen, Matthew V. (Department: 2838)
Electricity: power supply or regulation systems
Self-regulating
Using a three or more terminal semiconductive device as the...
C323S315000, C327S538000
Reexamination Certificate
active
11359505
ABSTRACT:
A reference voltage generating circuit with ultra-low power consumption, which includes: a constant current circuit part generating a first constant current from a supply voltage; a current mirror circuit part mirroring the constant current and supplying a second constant current; a voltage control circuit part receiving the second constant current and generating a first reference voltage by using substrate transistors driven by a PTAT (Proportional To Absolute Temperature) voltage and MOS transistors driven by a CTAT (Complementary To Absolute Temperature) voltage; and an output circuit part amplifying an output voltage from the voltage control circuit part to generate second to fourth reference voltages, and feeding back at least one of the second to fourth reference voltages to the voltage control circuit part so that the magnitude of an output voltage is adjusted. The reference voltage generating circuit is able to stably output four reference voltages, independently of changes in supply voltage, process, temperature, and other factors.
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Kim Chung-woul
Ku Ja-nam
Lee Dong-hyun
Min Young-hoon
Song Il-jong
Nguyen Matthew V.
Samsung Electronics Co,. Ltd.
Sughrue Mion Pllc.
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