1060 Electronics Projects and Circuits
Hi, my name is Popescu Marian and together with Jim Keith, T.K. Hareendran, D Mohankumar and 3 other authors we like to welcome you to ElectroSchematics.com, the website where we all discuss about projects for engineers. Great database of electronic circuits schematics, basic ideas for beginners, designs and new ways to practice your hobby with ease.
Browse through a total of 1060 electronic projects and circuits
audio amplifiers, fm transmitters, solar chargers from solar panels, battery chargers, kits, voltage converters, led projects, datasheets and more.
by T.K. Hareendran in Power supply |
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There are several ways to convert an AC voltage at a wall receptacle into the DC voltage required by a microcontroller. Traditionally, this has been done with a transformer and rectifier circuit. However, in applications that involve providing a DC voltage to only the microcontroller and a few other low-current devices,...
by Popescu Marian in Datasheet |
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The HT7750A, HT7727A, HT7730A, HT7733A, ICs are a set of PFM step-up DC to DC converters with high efficiency and low ripple. The series feature extremely low start-up voltage and high output voltage accuracy. They require only three external components to provide a fixed output voltage of 2.7V, 3V, 3.3V or 5V.
The HT7727A,...
by Popescu Marian in Hobby |
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2
Here is a simple RF bug detector that will help you detect spy bugs and can operate up to 2 GHz. Below are some essential things required for this circuit:
to cover a large frequency band
make a sound during the detection
optical and acustical indication when near the bug
sensitivity not too high in order to accurately locate...
by Popescu Marian in Useful |
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This circuit can detect only electrical wires connected to the mains (live wire). It has an LED for visual signalization and a buzzer for audio. As the electrician places the detector closer to the electrical wire the LED will flash at a higher frequency.
Live wire detector schematic
As you can see the schematic of the wire...
by Jim Keith in 555 |
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A common problem with on-delay timers is the timing capacitor reset. Typical timers (555 included) rely upon both complete power loss and finite elapsed time to assure that the timing capacitor is fully discharged. If this important detail is ignored, the timeout period is reduced and inconsistent. This 555 timer circuit...
by T.K. Hareendran in Hobby |
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This simple and economical IR model train detector circuit is intended especially for those hobbyists who wish to add a smart sensor to detect trains on their model railway track. As can be seen in the schematic diagram, it comprises of a simple infrared transmitter and receiver wired around the good old PLL Tone Decoder...
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You will discover that every electronics project has at least one schematic along with easy to read explanation on how it works. Also you can easily read the IC's datasheets using the links that are positioned at the bottom of the article. You can send us pictures with your finished and working circuit and we will publish them in the article giving you the credits.
