Flip-flop sound responder circuit diagram is a circuit that will create flip-flop output as a reaction from sound as an input. A condenser microphone is used for picking up the sound, this sound act as a toggle for the circuit. This circuit uses an opamp IC LM324 and flip-flop IC CD4027. The first two opamps [...]
This circuit is for a shunt-mode charge controller. In a shunt-mode circuit, the solar panel is permanently connected to the battery via a series diode. When the solar panel charges the battery up to the desired full voltage, the shunt circuit connects a resistive load across the battery to absorb the excess power from the [...]
Using 1.5V, this led flasher run more than a year on a single battery cell and alternately flashes 2 LEDs with 1 second rate. This circuit using 74HC14 CMOS hex inverter, operated in very low voltages (less than 1 V). first inverter used as a square oscillator (pin1-pin2), while the others are wired to produce [...]
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