Cypress AN2309, CY8C29x66 Appendix, Charge/Discharge and Cell-Balancing Profile Examples

Page 18

AN2309

Appendix

Charge/Discharge and Cell-Balancing Profile Examples

Figure 13. Charge/Discharge Manager Profile

		Cell-Balancing	COM #	Start Button
Cell Voltages Without	Charger State	Cell-Balancing	Drop-Down	Start Button
Cell Voltages Without	Charger State	State	Field
Charge Interrupt
	Charge /Discharge	Thermistor
	Current	Thermistor
	Current	Resistance
		Resistance

Constant

Voltage Charge

Constant

Current Charge

Battery

Discharge

November 25, 2007

Document No. 001-17394 Rev. *B

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Contents Application Note Abstract IntroductionCcell 1 Vcell 1 Ccell 2 Vcell Cell-Balancing FoundationQcell 1 Qcell Cell Ccell 1 VcellRdischargeN IbalN VcellNIchargeN Icharge IbalN RloadTwo-Cell Battery Charger Hardware Two-Cell Battery Charger with Cell-Balancing Support Device Schematic BAT2 PSoC Device Internals + C9Battery Measurement R15Nnew nold N4.2 V new Gina V Vbat Max NmaxVref N4.2 V oldTwo-Cell Battery Charger Firmware Two-Cell Battery Charger AlgorithmTwo-Cell Battery Charger State Diagram Two-Cell Battery Charger Firmware Flowchart Part Cell-Balancing Algorithm Cell-Balancing Algorithm Two-Cell Battery Charger Parameters Parameter Unit Description Charging ParametersCell-Balancing Parameters ConclusionAppendix Charge/Discharge and Cell-Balancing Profile ExamplesCell-Balancing Activity Profile About the Author Cell-Balancing Parameter Profile ScreenDocument History ECN