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A boost-topology battery charger powered from a solar panel

November 02, 2011 // Jeff Falin, Wang Li, TI // 0 comments

A boost-topology battery charger powered from a solar panel Download White Paper 185Ko

Solar charging of batteries has recently become very popular. A solar cell's typical voltage is 0.7 V. Many panels have eight cells in series and are therefore capable of producing 5.6 V at most. This voltage is adequate for charging a single Li-ion battery, such as that used in cell phones, to 4.2 V with a buck or step-down charger. However, using the same panel to charge a multicell Li-ion battery like that used in laptop computers requires a boost or step-up charger. This paper identifies the key concerns in implementing such a modification and provides a design example that uses the Texas Instruments bq24650 solar battery charger.

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This month, LabNation is giving away three of its SmartScope open source USB oscilloscopes, worth 229 Euros each, for EETimes Europe's readers to win.

Successfully funded through Kickstarter last year, the SmartScope is claimed to be the world's first test equipment designed to run on multiple operating systems and platforms such as smartphones, tablets and PCs. It is powered directly from the host’s USB interface.


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Infotainment Making HDTV in the car reliable and secure

December 15, 2011 | Texas instruments | 222901974

Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.


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