Solar Charger Controller (CB26028E)

We found this circuit in the October 1997 Electronics Now magazine. The circuit controls a solar panel used to recharge batteries.

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Signal Generator 555 (CB16245E)
An excellent signal generator for the audio track was found in a 1983 documentation. Its complete...
CMOS Inverter Amplifier (CB20635E)
CMOS inverters can be used as amplifiers, obtaining a flat response up to approximately 20 kHz....
Divider by N (CB25201E)
This circuit uses BCD switches to program the frequency to be divided. The circuit is from a Radio...