A delay circuit using an operational amplifier
Posted on Mar 28, 2007
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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This is the basic interface I used as part of my Computerized Room project. This is the parallel...
It consists of a 4047 low-power monostable/astable multivibrator, IC1, used in the astable mode...
This touch-actuated switch stays on as long as you keep your finger on the touch plate. Rl sets...
The circuit uses a synchronous-detection scheme to measure low-level resistances. Other...
During nighttime, when no light falls on LDR1, it offers a high resistance at the base junction...
A typical specification can range from a low of 36V to a high of 72- with a 48-V nominal. In some...
A Goodman Janitrol 2. 5 ton Standard Air Handler model #ARUF030-00A-1. After troubleshooting, I...
The TDA7000 has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz...
Sure, listening to VHF FM has great advantages over MW/LW AM from the old days ” now we have...
You can add as many extra zones as you like to the SCR Burglar Alarm System. The first circuit is...
BA313 is a built-in automatic level .png">control circuit (ALC) of audio recording...
TDA1510 Philips company's audio power amplifier. The IC features a load short {open load,...
DC-coupled multi-stage amplifier circuit b (3) multi-stage DC-coupled amplifier in DC-coupled by...
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