Bandgap voltage generating circuit and relevant device using...

Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

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C323S901000, C327S539000

Reexamination Certificate

active

07550958

ABSTRACT:
A bandgap voltage generating circuit includes a circuit coupled to a first node and a second node, driving the first and the second nodes to the same voltage level. A first impedance element is coupled to the first node and a second impedance element is coupled to the second node, wherein the impedance of the second impedance element is larger than the impedance of the first impedance element. A first transistor is coupled to the first impedance element, and a second transistor is coupled to the second impedance element and the first transistor. The bandgap generating circuit generates a bandgap voltage at the second node.

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patent: 6906581 (2005-06-01), Kang
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patent: 2003/0201822 (2003-10-01), Kang
patent: 574782 (2004-02-01), None
patent: 595107 (2004-06-01), None
patent: I234926 (2005-06-01), None
patent: I240493 (2005-09-01), None
patent: I241777 (2005-10-01), None

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