Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2008-03-31
2010-11-16
Nguyen, Ha Tran T (Department: 2829)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S765010, C324S1540PB, C363S021010, C363S021080
Reexamination Certificate
active
07834651
ABSTRACT:
Provided is a power supply circuit that supplies an electronic device with a supply power, including a voltage control section that outputs a control voltage that tracks an input voltage with a prescribed frequency characteristic and applies a voltage corresponding to the control voltage to the electronic device, a voltage adjusting section that detects the voltage applied to the electronic device and adjusts the input voltage based on the detected voltage, a current adjusting section that detects a current applied to the electronic device and adjusts the input voltage when the detected current is outside of a prescribed limit range, and a frequency characteristic adjusting section that increases a speed at which the control voltage tracks the input voltage by adjusting the frequency characteristic of the voltage control section when the applied current is outside of the limit range.
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patent: 7486059 (2009-02-01), Kodera
patent: 2007/0013409 (2007-01-01), Chae
patent: 2007/0296454 (2007-12-01), Koura
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patent: 2002-277505 (2002-09-01), None
patent: 2007-309859 (2007-11-01), None
Advantest Corporation
Chan Emily Y
Nguyen Ha Tran T
Osha & Liang LLP
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