Handheld electronics demystified: Designing an electronic handheld device by Pérez de Albéniz García Ismael
Author:Pérez de Albéniz García, Ismael [Pérez de Albéniz García, Ismael]
Language: eng
Format: epub
Published: 2020-08-19T16:00:00+00:00
7.1. NiCd / NiMH (linear)
NiCd or NiMH batteries require a particular charger that is rated to their specific potential and current. The following example is a NiCd / NiMH built around an ad hoc IC, the Maxim MAX712/713:
Figure 19. Example of a NiCd / NiMH battery charging circuit.
In the schematic, the connector J1 goes to the energy source, while J2 is the link to the NiMH or NiCd battery. The circuit above:
foresees voltage slope, temperature, and timer fast charge cutoff
can charge from 1 to 16 series cells
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