IC 4047 | Electronic Project Circuits

Posts Tagged ‘IC 4047’

Insect repellent device using ic 4047

This is a small circuit insect repellent, mosquitoes and birds, or other methods to produce high frequency audio signals. To interfere with the hearing of insects. Make it insufferable, wings to escape in the end.
Operation of this circuit is used IC1 number 4047. A duty to produce frequency. The frequency of IC1, set by VR1 and C1.The output at pin 10 and pin 11 alternately.If the output signal at pin 10 will cause transistors 03 and Q2 work.However, if the output signal to pin 11 will cause transistors Q1 and Q4 to work instead.So the speaker piano sound frequency in PZ1.

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Insect repellent circuit
MOSQUITO REPELLANT by IC 555, 4017, 4011
MOSQUITO REPELLANT

Be the first to comment - What do you think? Posted by admin - November 1, 2010 at 2:11 am

Categories: Oscillator generator Tags: IC 4047, Insect repellent circuit, mosquito repellent circuit, Oscillator generator

100W Square wave Inverter by CD4047, LM358,2SC1061,2N3055

This is AC Inverter. Input 12VDC from car battery to output 220V AC 50Hz or 60Hz at Square wave signal.
The main part is IC CD4047 (or IC 4047 Series) and IC LM358 and Transistor 2SC1061 and 2N3055.
The transformer is 12V-012V Primary : 220V Secondary.
and current 3A up for power output than 100W.
Note:
C1 = 0.1uf metalized-film capacitor, 5% tolerance.
R1 = 47K for 50Hz output, 39K for 60Hz output.

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DC24V to AC220V Inverter 300W by NE555,CA3130,MJ15003
12V to 220V Inverter 500W by 2N3055
Inverter 100W by IC 4047 + 2N3055 (with PCB)