Battery charging regulator circuit

Published:2011/7/18 2:57:00 Author:TaoXi | Keyword: Battery, charging, regulator | From:SeekIC

This circuit uses the PHILIPS TEA1100 chip to charge the Nickel cadmium battery rapidly and effectively with the incremental peak principle. The circuit is as shown in figure 3-1. The incremental peak regulator can detect and judge the change of the battery voltage: if the voltage of pin-7 decreases 1% or more of the average maximum value, the charging will continue. The voltage of pin-7 must be in the range of 0.385V-3.85V, the voltage dividers R4 and R5 can be used to supply the voltage that is in this range. The values of R4 and R5 can be ensured by this formula: R4/(R4+R5)>0.35n. The charging current Io=1.25R10/R8IIR9)R2, the charging time t0=226X0.93XR2XC3. When the circuit does not detect the maximum voltage value, the circuit will stop charging after the time of T0.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Battery_charging_regulator_circuit.html

Print this Page | Comments | Reading(3)