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In this section of talk about a type of insect repellent, insect repellant is a circuit that will repel insects from your home or yard with effectively. This circuit uses the frequency of bullying for the insect so the insect will go.
For this skesta insect repellent should be installed inside or outside the home can / for speaker. This series of in-circuit oscilator adl PLL circuit / phase looked loop by using a CMOS 4047 with frequency 22 khz.gunakan external power supply for better results.
IC 4047 Description
The CD4047B is capable of operating in either the monostable or astable mode. It requires an external capacitor (between pins 1 and 3) and an external resistor (between pins 2 and 3) to determine the output pulse width in the monostable mode, and the output frequency in the astable mode.
Absolute Maximum Ratings IC IC 4047
DC Supply Voltage (VDD)...........-0.5V to +18VDC
Input Voltage (VIN)...............-0.5V to VDD +0.5VDC
Storage Temperature Range (TS)....-65°C to +150°C
Power Dissipation (PD)
Dual-In-Line...................... 700 mW
Small Outline..................... 500 mW
Lead Temperature (TL)
(Soldering, 10 seconds)........... 260°C.
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