Jumat, 11 November 2011

RANGKAIAN PENGUSIR TIKUS

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.
Pengusir SeranggaSkema Rangkaian Pengusir Serangga

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.

RANGKIAN PENGUSIR NYAMUK DAN TIKUS

This is a circuit diagram of an ultrasonic mosquito repeller (pengusi yamuk). The circuit is based on the theory that insects like mosquito can be repelled by using sound frequencies in the ultrasonic (above 20KHz) range. The circuit is nothing but a PLL IC CMOS 4047 wired as an oscillator working at 22KHz. A complementary symmetry amplifier consisting of four transistor is used to amplify the sound. Speaker Piezo buzzer converts the output of amplifier to ultrasonic sound that can be heard by the insects.
Rangkaian Pengusir Nyamuk
Skema Rangkaian Pengusir Nyamuk

The circuit can be powered from 12V DC. The buzzer can be any general purpose piezo buzzer.

Description IC CD4047B

IC 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. Astable operation is enabled by a high level on the astable input or low level on the astable input. The output frequency (at 50% duty cycle) at Q and Q outputs is determined by the timing components. A frequency twice that of Q is available at the Oscillator Output; a 50% duty cycle is not guaranteed. Monostable operation is obtained when the device is triggered by low-to-high transition at a trigger input or high-tolow transition at b trigger input. The device can be retriggered by applying a simultaneous low-to-high transition to
both the a trigger and retrigger inputs. A high level on Reset input resets the outputs Q to low, Q to high.
Lay out IC CD4047B
Block and Connection Diagrams IC CD4047B

IC CD4047B Applications

Frequency discriminators
Timing circuits
Time-delay applications
Envelope detection
Frequency multiplication
Frequency division