1. A 2.2A, 4 MHz Switch-Mode Battery Charger for a Cellular Power Management Unit
- Author
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Kerry Thompson, Marc Keppler, Scott Savage, Vipul Katyal, Russ Radke, Jay Edward Ackerman, Michael Owen Baker, Mark Rutherford, Ryan Michael Desrosiers, and John McNitt
- Subjects
Battery (electricity) ,Battery charger ,Mode (computer interface) ,Computer science ,Mobile phone ,business.industry ,Electrical engineering ,Electronic engineering ,Key (cryptography) ,Constant current ,Circuit architecture ,Power Management Unit ,business - Abstract
Battery chargers are a necessary part of any mobile electronic device. Because a mobile phone battery is a high-energy storage unit, care must be taken in the design of the entire charging system. This paper discusses the overall charging system for a mobile phone as well as some key factors that make battery chargers unique. The design of a switch-mode battery charger is presented, including subsystem circuit architecture, stability analysis, and sequencing logic, plus the key performance parameters of the design are summarized.
- Published
- 2013
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