Electronic Fish And Shrimp Catcher (1)

Published:2011/7/9 6:56:00 Author:Sue | Keyword: Electronic, Fish Catcher | From:SeekIC

The dual time base integrated circuit IC's inner time base circuit and resistor R1,R2, capacitor C1,C2, LED VL1, potentiometer RP1,RP2 compose low frequency multivibrator. When the oscillator begins to work, VL1 will be illuminated. IC's inner time base circuit, resistor R3,R4,LED VL2, potentiometer RP3, capacitor C3,C4 compose high frequency multivibrator. When the oscillator begins to work, VL2 will be illuminated. The high voltage generator circuit consists of VMOS field effect transistor VF1,VF2, resistor R7-R11, zener diode VS and step-up transformer T. Under the control oflow frequency multivibrator, the high frequency multivibrator will output pulse signal from IC's pin 9 which will generate pulse high voltage through the step-up transformer after the signal is amplified by VF1,VF2.



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