4-Decade Square-Wave Generator
New Circuits
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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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A gate voltage is applied to initiate the proceedings. When the gate voltage is in the ON state, Q
A 555 timer operating in the astable mode generates the driving pulses and two 4518 dual BCD...
When the power supply input to IC1 is the output pin 3 at a frequency of 1 kHz. The frequency is...
Power supply with driver TEA1507 is mostly used by TV branded PHILIPS. Power Supply has an...
A USB powered device with multiple IC`s. From what I`ve read it`s standard practice to use a...
For a fixed frequency transmitter one commonly used method is to use a resonant quartz crystal in...
The mic inputs are amplified about 100 times or 40dB, the total gain of the mixer including the...
This project was completed during a course on robotics taught by Prof. Dave Barret at Olin...
A 12 volt relay is connected between the two stages in a way as when it will get 12 volts from...
Servos became valuable products for any variety of plans, like robotics, automation or only...
The buck-boost converter is of value where the output and/or input voltages vary to such an...
There are many applications where the accuracy of a digital or analogue (bar graph) is not...
A tone generator that runs on as little as 1. 5 Vdc, using the Sallen-Key configuration. And...
This circuit allows you to set a limit on the maximum output current available from your PSU....
It shows the dynamic AC signal level display drive circuit can be used for audio level display...
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