3,260
edits
Changes
→Options #3: NiMH/NiCd battery
==Options #3: NiMH/NiCd battery==
Third option use a battery pack with 2 NiMH cell in series.
The IC charger is a Linear Technologt LTC4060. J9 is a connector for an external NTC thermistor (10k) for temperature control of the battery during the charge.
Setup jumpers:
- J10 Set the time charge
- J11 Select the battery type, NiMH or NiCd
- J12 Select the maximum charge voltage (1.2V or 1.3V)
- J13 Select the maximum charge current
Led diode DL2 indicate the battery charging and DL3 is ON when Vin is greater than the undervoltage lockout threshold.
See Linear Technologt LTC4060 datasheet for any other information.
==Options #4: Li-ion/Li-Po battery==
==Schematics==
http://www.dave.eu/download/restricted/ssd/dul/DUL-EVB-0.9.1.pdf