Voltage detection circuit, overcurrent detection circuit,...

Details Voltage detection circuit, overcurrent detection circuit,... Voltage detection circuit, overcurrent detection circuit,...

2005-10-26

2008-12-02

Ullah, Akm E (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With detection of current or voltage amplitude

C320S162000

Reexamination Certificate

active

07459887

ABSTRACT:
A voltage detection circuit detects an input voltage in first and second periods to average by using a switch circuit and a sampling circuit. At this time, the input voltage of the second period is added to the input voltage of the first period so that a polarity of variations is opposite, the variations being in relative errors of a plurality of resistors for dividing the input voltage, in input offset voltages of a voltage amplifier for amplifying an inputted minute voltage, and in input offset voltages of a comparator for comparing an amplified voltage value with a certain level.

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patent: 2003-043123 (2003-02-01), None

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