When power supply is normal, j2 gets report to suck close, its move contact and “N/O (often drive a point) ” puts through, mothball accumulator is being carried with IC1 turn over photograph end to connect. IC1 (LM308) comprise voltage comparator with D5, D6, consult voltage is decided by D5, D6. A silicon detector is used here (D5) the stabilized voltage diode with a 6.2V (D6) the referenced voltage that comprises 6.9V, undertake monitoring to filling voltage voltage. Input voltage when the 2 feet of IC1 (already accumulator voltage) under 6.9V when, the 6 feet of IC1 output tall n, t1 guides, j1 gets report, its move contact and “N/O (often drive a point) ” puts through, power source voltage charges to accumulator through R2, at the same time LED2 illumes to be indicated to charge. Value of change R2 block can adjust charging current. As charge time increases, the 2 feet voltage of IC1 increases gradually, when voltage is more than referenced voltage 6.9V, the 6 feet of IC1 output low n, t1 ends, j1 breaks phone, disconnect charge loop, implementation charges automatically protective function.
When power cut, j2 loses power source, its move contact and “N/C (often close a point) ” puts through, accumulator carries power supply of circuit of S1 correspondence urgent lamp, when implementing power cut automatic switch function. S1 uses a hand to move here cut off part of lash-up lamp circuit.
By IC2 (NE555) , the circuit of compositive lash-up lamp such as T2, T3, T4, X2. IC2 comprises 50Hz signal generator, output 50Hz signal by the 3 feet of IC2, classics T2 turns over photograph, enlarge to part the push-pull circuit that drive comprises by T3, T4, X2, the alternating current of 220V goes out in the high-pressured side induction of X2, make solar tube illumes. The X2 here can be used directly sub for 4.5 bend over, primary the transformer of finished product power source that is 220V, the power that power tries solar tube and calm. When using, notice T3, T4 should add radiator.
When making, x1 is chosen sub the power source transformer that is 6V/200mA. J1, J2 chooses coil voltage to be the relay of 6V. Choice of other parts of an apparatus can consult graphic representation, without special requirement. Circuit is debugged very simple, put through advocate when power source report, j2 should movement, LED1 is power source directive. Whether is the 3 feet voltage that measures IC1 next 6.9V left and right sides, power source is received to receive IC2 foot to adjust outside one can be being used later charge protective circuit. When input voltage is more than 6.9V, j1 should the movement disconnects. Short open S1, power source is received to receive lash-up lamp circuit outside using, the output that measures IC2 whether 50Hz, next whether is voltage of part of measurable X2 output controlled for 220V already but. LED3 is power cut / directive of lash-up lamp job.
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