Battery Chargers
This chapter is devoted to charger circuits for the batteries described in Chapter 2. The circuits here can be used immediately the way they are or, by altering component values, as a basis for simplified design of similar circuits. We start with an IC that provides fast-charging for the popular NiCad/NiMH batteries.
3.1 Fast-Charge Controllers
Figures 3–1, 3–2, 3–3, and 3–4 show the block diagram, typical operating circuit, pin connections, and pin descriptions for the Maxim MAX712/713 controllers. These ICs fast-charge NiCad and NiMH batteries from a DC source at least 1-V higher than the maximum battery voltage. One to sixteen series cells can be charged at rates between C/3 and 4C. (The term C/3 refers to a charging ...
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