Other Circuits
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BEAMSonics is a clever little circuit designed by Wilf Rigter. It`s central function is to filter incoming sounds and count high pitched pulses, whistles, beeps etc. When it hears a certain number of beeps it will respond with a noise of its own. If left on.... -
Clock signals are the heartbeats of digital systems. Hence, the stability of clock signals is highly important. Ideally, clock signals should have minimum rise and fall times, specified duty cycles, and zero skew. In reality, clock signals have nonzero skews.... -
I hadn`t worked through the biasing calculations for collector feedback common emitter amplifiers before, so I thought I`d do that for the simple one transistor NPN preamp that Dino built as his weeklyhack. But even before I got to it, I was confused by.... -
For some reason, I`m getting back into the universe of QRSS, or very slow Morse code. I goofed around with this for a while, writing some software to record audio and produce the necessary FFTs so that you can read Morse from these incredibly long Morse.... -
For mad scientists only ! Portable Jacobs Ladder circuit. A very unique project... -
This circuit is shows how a low drift preamplifier can be added to improve the measurement resolution of a thermocouple. The preamp is powered from the reference regulator, and bridge feedback is used to bias the preamp input within its common mode range..... -
C141C datasheet, .Selling leads from all over the world, ChinaICMart is the world`s biggest IC trading marketplace on the internet. We offer finest suppliers for C141C, you can also download the datasheet for C141C.. -
Cal-(IT)2 is developing several generations of general broad application radio/networking test platforms for wireless research and development. CalRadio I is the first generation. It provides a simple, low-cost platform for 802. 11b development from the MAC.... -
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By no means is this a necessary addition to the benjolin but its one I`ve had some fun playing with and decided to add to my Modular Benjolin design. This circuit is a dual Attack/Release envelope generator. The AR is especially useful when combined with the.... -
The user selects a game to play and presses the power button on the Nintendo. 1 or 2 player games may be selected. Once the game has loaded, using the game controller allows for standard game play. As long as the viewer only touches the joystick and buttons.... -
Thanks for putting these schematics up, the different circuits look like they`ll be useful for many projects. The CV section alone, is vastly usable. Brilliant! I am in the very beginning stages of making a mighty benjolin PCB with Rob himself. I`m crossing.... -
Both versions have the schematic attached. However, the resolution of the schematic isn`t that great. I would recommend saving the image above or downloading it from HERE to ensure you can see everything accurately. There isn`t an easy way to shield yourself.... -
The Lorenz system is one of a few standard oscillators commonly used to explore chaos [1]. An accessible description of its mathematical features and chaotic dynamics is presented by Thompson and Stewart [2]. This important system was originally developed as.... -
An Intergrated ircuit is just that. an intergrated circuit. These small packages combine many individual components to perform a specific function. They vary in shape and size depending on their complexity. They are categorised into functions like Audio,.... -
A relay is essentially an electrically operated switch it has a coil that uses magnetism to close the contacts on the switch. In automotive terms 12V running through the coil will allow 12V to run through the switch contacts. So why is a relay useful You can.... -
Alright, so I had some post-publication weirdness following my last post, and it took me a few days to figure out exactly what was up, but I think I finally have all the details, and I learned a lot in the process. I noticed some weirdness towards the end of.... -
So the concept here is pretty simple. I wanted to mount a microphone on a stick with an LED and design a circuit that would react to a large amount of noise on the microphone input (blowing) to turn off the LED. As you might expect, the schematic for this.... -
Harford Hackerspace wanted to make our own Tron Identity Disc using the Netduino, allowing us to quickly load different versions of code to change the disc`s functionality. David Powell, Gary W. Cygiel, Jeremy Ashinghurst, Paul King, Jason McMahon present a.... -
I have also realised that my intentions for night air charging are possible, but unnecessary. When heating is going on (late March/early April) the boxes worked at night because air temp was better than glycol temp - that was helpful. Now that it is summer.... -
One Advantage of these two units is the Sensor can be placed Away from the heater, therefore sensing the Actual Room temperature, not the direct heat from the heater. These can also be used in a confined space with a Heat Lamp, to create a Drying Oven. This.... -
I initially designed these circuits for a friend who had muscle problems and while he says they did work well for him, I "DO NOT" RECOMMEND THE USE OF THESE DEVICES BY ANYONE FOR ANY REASON. I ACCEPT NO RESPONSIBILITY OR LIABILITY FROM THERE ASSEMBLY OR USE.... -
IC1 is a dual operational amplifier. In this circuit each op-amp is used simply as a voltage comparator. When the voltage at the + input is higher than the voltage at the - input, the output goes high. When the voltage at the + input is lower than the.... -
A Pulse generator usually allows control of the pulse repetition rate, pulse width, pulse delay and pulse amplitude. More sophisticated pulse generators may allow control over the rise time and fall time of the pulses. A pulse generator`s delay is measured.... -
This section describes the various systems aboard Chinook II. Our approach is to use reliable and appropriate systems consistent with the size and for our intended use of the boat. Being a tinkerer and engineer (for better or worse) I often build parts or.... -
One of my backup systems uses a Magnum MS-PAE 4024 inverter, which doesn`t have any built-in fan controller. Since batteries give off hydrogen during both normal and equalization charging, it`s important to vent the batteries to the outside with a brushless.... -
When we modulate a carrier signal with amplitude modulation, there will be four frequency components as the result. The first is the modulating signal itself, the second is the frequency carrier, the the latest two are the difference and the sum of the....
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.....
Popular Circuits
This circuit will emit an intermittent beep (or will flash a LED) when the water contained into a...
The JFETs, Ql and Q2, provide complete buffering to Cl, the sample and hold capacitor. During...
The amplifier picks up the TV"s audio output signal and amplifies it to drive a set of earphones...
This electronic project is a simple microphone preamplifier based on the LM318 op amp. The LM318...
First of all let me remind you that this circuit is a very dangerous one. The output voltage of...
The required output at the inverter is 220/230V @60Hz. Basically, let me say i need an inverted...
This is The Fet Amplifier circuit. This circuit uses FET transistor. The gate of the FET must be...
Hens to provide adequate illumination can increase egg production rate, since when asked to...