simple circuit of infra red remote control

By using the NE 555 and LM 567we can create a system of remote control via infra red light media. This system works based on the frequency of reading the signal transmitted, so that the frequency of the signal transmitter in the series must be the same as the receiving frequency.Frequency on the transmitter is determined by the value of...

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Lampu Otomatis Sederhana

Gbr. Rangkaian lampu otomatisComponent list: R1 = 100K PotQ1 = 2N3904 or 2N2222Q2 =NPN PhotoTransistorRELAY= 9V Rel...

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time delay with 555 chip

A time delay relay circuit is a relay that stays on for a certain amount of time once activated. This time delay relay is made up of a adjustable timer circuit which controls the actual relay. The time is adjustable from 0 to about 20 seconds with the parts specified. The current capacity of the circuit is only limited by what kind of relay...

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Mengukur Transistor Menggunakan Multi Meter

Ekivalen transistor with two dioda combined, so that the test dioda principle applied to the test transistor.Cara Mengukur Transistor Menggunakan Multi MeterMultimeter set on step x100, investigators in the black paste on the base and red at th colector, needle should move to the right. When the investigators moved to Emitor red, needle...

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Mengukur Kapasitor Menggunkan Multi Meter

Previous cargo in the condenser discharge (connected pin positive and negative). set the multimeter on the stride Ohm, paste investigator red poles on the positive and black on the negative.When the needle deviate to the right and then a fade back to the left, the condenser means. When the needle does not move, condenser dropping out and...

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Digital Voleme Control

Rangkaian Digital Voleme Controlin this series can use a digital set the volume on the amplifier or tone control. although the tone control is the volume available, but we can make a volume control with a series.to use this series, release potensiometer the tone control that serves to set the volume, and then connect the output volume of...

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12 watt FM Transmitter

The advantages of FM modulation is free from the influence of air disturbance, the bandwidth (wide band) is larger, and the high fidelitas. If compared with the AM system.fm transmitter is a modification of the fm transmitter on the market (type of saturn s 038). with several series of modifications and additions boster series can produce...

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CIRCUIT OF SIMPLE ON LINE UPS

physical irfz44 & CD4047 chipSimple Circuit of UPS on lineUPS (Uninterruptible Power Supply), is used to anticipate the power off. Output series UPS has a power of 60W (if the transformer is used the greater the power will higher). Before the series there is a major series of the adapter has a voltage between 9V - 12V with strong currents...

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5 Band equalizer

BA 3812 chip 5 Band equalizerSkema Rangkaian 5 band equalizerIn this part of the investigation in a series of 5-band Equalizer circuits with a single IC BA3812 L. a device used in the hi-fi. IC BA 3812 This is with 5-point Equalizer with all the functions integrated in one IC.Equalizer has advantages, namely: small distortion, a small noise,...

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Battery indicator

In this part of the investigation in a circuit of battery indicators , this is arise such alarm sound or light up when the battery already weak, so that needs to be replaced or re-charge.Circuit of Battery indicatorNote:voltage used is 12 voltLow voltage warning flow: 15 mAAlarm tone can be changed with the R7.Tips Merawat Battery basahKeep...

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Jam Digital berbasis Mikrokontroler AT89s51

Rangkaian Jam Digital berbasis Mikrokontroler AT89s51Digital hours to make this not too difficult. This series is not my original project, I trace the series of files and program from the internet, there is no chance the program listing. After I download the file to its hex-hour direct way. This clock only displays hours and minutes,...

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Skema Audio Ampflifier

60 watt Audio AmplifierThis circuit in the complete with bass-boost control on the fedback loop amplifier, this is done to overcome the declining quality of tone Bass. Graphic bass can reach a maximum at +16.4 dB @ 50Hz.Note: Q3 and Q4 should be put in with the heatsinks.Set the volume control on the position of the minimum and R3 with...

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Power supplay (Adapter)

12 volt dual voltage of adapterTransformator 18v-CT (min)Capasitor 35vBridge Rectifier 2 Ampere /100 vc4, c5 Ceramic12 VOLT 20 Ampere of adapterUsing a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 20 amps. ...

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Skema Rangkaian Oscillator LM555

LM555 Astable oscillator Circuit.Circuit oscillator astableFrequency of the output pulses is determined by the values of two resistors, R1 and R2 and by the timing capacitor, C.To calculate the frequency (F):To calculate the the On time or Off time:Before calculating a frequency, you should know that it is usual to make R1=1 kΩ because...

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Circuits of Audio Booster

Audio booster with transistorThe 2N3392 transistor is a (cheap) low-power, low-noise and high-gain. If you wish to use a TUN, cross reference the parameters with one of the units from this list:Potentiometer R5 of 100K is a linear type. The value of C1 may need to be between 0.05uF and 0.1uF (47nF/100nF). Experiment with the value for best...

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Circuits of Infra Red Sensor

Circuit of Movement detectorsPhotodioda as removing the transmitter beam infra red with the pulsation frequency 5KHz, then the pulsation will be reflection by reflector in front of it. and received by the phototransistor as the receiver. The detected object is located between the transmitter-receiver with a reflector.Circuit on the left...

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Circuits of audio pre-Amp mic

A microphone preamp is a preamplifier used to amplify a microphone's low output voltage to a stronger, more usable level. A microphone preamp must provide stable gain for small signals without being sensitive to induced noise from cabling and without distorting large amplitude signals. Most microphones must be used in conjunction with a...

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Circuit of Mouse Repellent

A simple series of mouse repellent is a oscilator the issue on the ultrasonic wave frequency range 20 - 40 kHz. The ultrasonic waves will not be heard in the ear, but we will be with the one for the mouse ear. Base Frequency will be modulation with a 50 Hz signal is obtained from the frequency PLN through capacitor C4 (to avoid a mouse immune...

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Rangkaian Audio tone control

Bass-treble tone control circuitsFeatures: Wide supply voltage range, 9V to 16V Large volume control range, 75 dB typical Tone control, ±15 dB typical Channel separation, 75 dB typical Low distortion, 0.06% typical for an input level of 0.3 Vrms High signal to noise, 80 dB typical for an input level of 0.3 Vrms Few external components...

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Automatic lamp Circuit

This series will work as the lighting will automatically turn on when the voltage net PLN off. If the net voltage on the series will off automatically.Emergency Light chain scheme can be viewed directly on the image aboveComponents list:R1R2C1D1,D2S1Tr1TrafoL1,l2Batery: 33 Ohm: 470 Omh: 470 uF/16v: 1n4001: switch (push on push off): BC 160...

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