Resistor Chip Arrays
Product name: red-blue double-color flash lamp welding kit
Product model: TJ-56-91
Working voltage: DC9~12V
PCB size: 92 * 30mm
Description:
This kit consists of a multivibrator composed of NE555 and a CD4017 decimal counter/pulse distributor. When the first, third and fifth pulses arrive, Q0, Q2 and Q4 will output high level in turn, and the blue LED will flash three times. When the sixth, eighth and tenth pulses arrive, Q5, Q7 and Q9 will output high level in turn, and the red LED will flash three times. When the eleventh, thirteenth and fifteenth pulses arrive, the blue LED will flash again, and the blue and red LED will flash alternately in turn, forming the appearance of analog alarm light. Changing the size of RP1 can change the oscillation period, thus changing the flashing speed of LED. The whole circuit DC9-12V can work.
Circuit principle
This kit consists of a multivibrator composed of NE555 and a CD4017 decimal counter/pulse distributor. When three or five pulses arrive, Q0, Q2 and Q4 will output the high level in turn, and the blue LED will flash three times. When the sixth, eighth and tenth pulses arrive, Q5, Q7 and Q9 will output the high level in turn, and the red LED will flash three times. When the first, thirteenth and fifteenth pulses arrive, the blue LED will flash again, and the blue LED and the red LED will flash alternately in turn, forming the appearance of analog alarm light. Changing the size of RP1 can adjust the oscillation period, thus changing the flashing speed, and the whole circuit DC9~12V can work
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Type : Voltage Regulator
Origin : Mainland China