Discover the Widest Range of Automatic Battery Charger Circuits.After this the LEds connected at the output linearly indicate the charge level of the battery by illuminating in sequence, and finally when the last LED is lit which happens when the battery gets fully charged, the SCR is triggered shutting off the charging process permanently until the power is reset. The 10K preset associated with the above IC is set as per the battery voltage which needs to be charged. Thus the output sequence corresponds to the instantaneous voltage level at the "signal input" pin out of the IC. The IC has ten linearly incrementing output which sequence one after the other in response to a rising potential fed at its pin#5. The circuit functioning may be understood with the following points: The IC LM3915 which is a Dot/Bar voltage display chip forms the main section of the circuit. The following circuit will allow you to charge any battery right from 1.5V to 24V simply by setting up a given preset.
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