The operation of the circuit starts up and transport the stereo surround sound signal quality information on the master volume circuit. This will drive the left channel connected to LCH Model TL072 IC1A IC1B and attached to the right channel Rch. The outputs of these operational amplifiers serve as the input buffer for the next stages of the circu
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it. IC2C is responsible for the sum of the signals from left and right to power the center speaker output, while IC2D is responsible for increasing the phase difference between left and right, which is encoded in the two channels and be fed to the rear speakers. It is necessary to ensure that the negative terminals from the rear speakers is not grounded, since it will only work in parallel with the main speakers. The output of the power unit regulated IC2D takes audio to rear speakers. This would lead to the creation of sense of separation, according to the size of the room. This will incorporate signal amplifier IC5 MN3004 sound delay that has 512 steps. From IC4 MN3101 is a timing signal, which provides synchronization of IC5 as it functions as an oscillator in the circuit. C17 variable capacitor regulates the delay in the circuit. The presence of filters in the circuit is in order to avoid the noise that occurs during the process. These filters can be adjusted to cut the frequencies above 8 kHz and below 100 Hz, to be able to drive the rear speaker. The rear speaker is small and that their entry is encoded with a bandwidth of 100 Hz to 8 KHz. The filters are built around the IC6A / B is also an output buffer. A potentiometer is placed on each output to aid in the adjustment and regulation of speakers and amplifiers. The energy supplied in the circuit is 15 V and each output can drive a single power amplifier.
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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