Design of Power Collecting Charger Based on AT89S52
Abstract:This paper introduces a system design based on AT89S52 micro-controller and MAX1898 smart charging chip, which can charge the mobile phone. This design connecting to 220V alternating current (AC) by KBP307 and stable LM7805 changes into 5V DC as the power supply of the whole system.Through the single chip controlling charging chip, communicate and coordinate with related auxiliary chip and circuit is simple and effective to realize the rapidly charging mobile phone, full electric disconnect, alarm and the function of the current display to monitor the whole process.
Key words:Lithium battery;Charging chip MAX1898;Micro-controller AT89S52;Quickly charge