Zagorin Cave LLP
Real time clock battery power management
An information handling system real time clock (RTC)/CMOS circuit is powered from a battery that powers the information handling system. The battery power is supplied through a power management circuit that manages power constraints to the real time clock and that protects the battery from exceeding current and voltage thresholds. A protection integrated circuit selectively cuts off power supply from a power module to the RTC/CMOS circuit if predetermined conditions are detected. The protection circuit may also cutoff all power from battery with a permanent failure option or may itself directly supply power to the real time clock/CMOS circuit.
Dell Products L.P.
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Szu Shao Chien-Hao Chia Liang Chia Fa Jui-Chin
Ho Chiu Lin Chang Fang