Stable optocoupler
Posted on Dec 16, 2012
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 self powered interface circuit electrically isolates the TxD and RxD lines from the PC...
Now-a-days every institution needs automation. As a part of college automation, we have decided...
The limitation of car supply voltage (12V) forces to convert the voltages to higher in order to...
A milliamp meter can be used as a volt meter by adding a series resistance. The resistance needed...
Enter values for R1, R2, and C and press the calculate button to solve for positive time interval...
This volume controller equalizer electronic project is designed using LM1036 DC tone volume...
Here is a project of a simple touch switch circuit. This circuit and can also be used to activate...
Make a sound card is no more a complex issue. If you use great IC PCM2702 from BURR BROWN / Texas...
An interesting circuit of a bicycle horn based on a popular, low cost telecom ringer chip is...
This circuit will allow the brake light was flashing. The default behavior. When the power supply...
This simple circuit senses heat from electronic devices and gives warning alarm. It is an ideal...
IC4, MAX232, is used to connect to the PC by serial port. This connection is useful for debugging...
The battery charger pictured here is a real beast. It will dump 60 amps into a 12 volt battery...
The IR Widget captures the infrared signals used by remote controls. It is able to determine the...
This glowing Halloween ghost is available as a kit from the tuxgraphics online shop. It can glow...
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