555 four words cycle neon light light control circuit

Published:2011/5/22 19:09:00 Author:TaoXi | Keyword: four words cycle, neon light, light control | From:SeekIC

This control circuit is composed of the AC step-down rectifier circuit, the astable multivibrator, the timing control circuit, the optocoupler circuit and the SCR driving circuit.etc. As the figure 17-61 shows. The astable multivibrator is composed of the IC2(555) and R2，R3，RP1，C3.etc. It's frequency depends on RC's charging and discharging time constant, f=1.44/(R2+2R3+RP1)C3. The parameters of the figure's oscillation frequency is about 0.1～2.2Hz, the corresponding oscillation period is 10～0.46 seconds. By adjusting RP1, you can change the oscillation period.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/555_four_words_cycle_neon_light_light_control_circuit.html

Print this Page | Comments | Reading(3)