While battery packs enable individual cell capacities to be scaled in series/parallel configurations to suit portable applications, they must also provide thermal management in extreme environments.
A dual comparator and thermistor set safe temperature limits for a lithium-ion battery charging circuit. The single-cell lithium-ion (Li+) battery charger can be powered from a USB port or external supply.
The design process for a fuel-cell-based inverter system for domestic use is discussed. The peculiar characteristics of the fuel cell stack energy source require the use of a battery for buffering. The fuel cell characteristics and the battery requirements for this application are discussed. A large number of different possible solutions are examined. The proposed solution uses an active filter and a battery to compensate for the slow dynamics of the fuel cell.
Abstract: Adding watchdog protection to the charger-input circuitry of a mobile phone guards against damage when the baseband processor stalls or ceases software execution. Key Words: mobile phones, b
Abstract: This circuit uses a NiMH cell to replace a lithium battery. Its output simulates the discharge characteristic of a lithium (Li+) battery. Key Words: NiMH battery, power management, lithium-b
Abstract: Most Dallas Semiconductor real-time clocks (RTCs) include a supply input for a backup power source. This alternate supply source allows the RTC to maintain the current time and date while th
Summary Problem - Solar-array power system lockup in battery discharge mode when there is sufficient energy to charge the battery.Relevance - Illustrates the complexity of problems that occur in power
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