Analog Devices, Inc. (ADI) today announced an integrated precision solution for battery testing and imaging that combines an analog front end, controller and pulse width modulator (PWM) to enhance lithium Ion battery formation and grading system accuracy and efficiency. Compared to conventional technology, the new AD8452 is capable of providing 50% more channels in the same space, increasing capacity and increasing battery yield. The switching technology used in the AD8452 recovers the energy of the battery during discharge, with up to 10 times the accuracy of conventional switching solutions. Higher precision means more batteries can be placed in the battery pack, which helps extend battery life in applications such as electric vehicles. In addition, the device combines superior detection and monitoring capabilities to prevent overcharging and undercharging that can cause battery failure, thereby increasing the safety of the manufacturing process. The AD8452 saves up to 50% bill of materials (BoM) costs for charging/discharging boards, saving system costs by around 20%. The device features a companion system simulation demo board that reduces R&D engineering costs and time-to-market for test equipment manufacturers.
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AD8452 Features
· Enables battery formation/classification energy recovery for systems up to 20 Ah and up to 95% power efficiency
· Industry-leading current and voltage measurement accuracy, better than 0.02% under 10 °C temperature change conditions
· Solution size is 70% smaller than previous generation
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