Simple Design of Temperature Sensor Electronic

Sensor de Temperatura Eletrônico

This is another simple design that leverages an additional feature of a component. In case the sensor used is a 1N4148 diode Transistor BC547B or with the base and collector shorted. Have you ever seen right here on the blog a Circuit Temperature Sensor using 1N4148 diode, and also the temperature sensor LM35, but this is different because of its simplicity. Circuits ...

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Circuit Electronic Fuse for small project

fusível eletrônico

For those who ride or develops electronic circuits the need for a source of protection system is paramount. In both blow fuses confess that I ended up having to recycle a blown fuse, abomination. But there is a practical and efficient output that is the construction of an electronic fuse. The electronic fuse is a device that plays the fuse ...

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What are their Resistors Types and Values


The resistance of an object is a measure of its opposition to the passage of electric current. Discovered by Georg Ohm , in 1827, electrical resistance has a similar concept to the friction in mechanical physics. The resistance unit in the International System of Units is the ohm ( AZ ). To measure, in practice, There are several methods, ...

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Online Calculator and Coil Inductance

Calculadora On-line de Bobinas e Indutância

Often we have to do complex calculations to build a coil, or to discover its inductance. But to ease our life there are many programs that do this, but do not always have time to be installing these programs, so I'm offering some online calculators calculations coils and inductance. From personal experience I want to note that this is just a theoretical basis ...

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Circuit solar charge controller and battery charger

regulador e carregador solar

I think more and more people come becoming aware and seeking energy alternatives, mainly by the high costs of electricity provided by companies to the residences. Although the government does not help, on the contrary, even more taxing products such as solar panels and their controlling devices, yet it is still advantageous to buy and install this energy source for use ...

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Flashes Led Powered by AC Network

Pisca Led 220V AC

Connecting an LED directly at the AC grid is not easy for those who have not practice with electronics, make him blink thing is then almost absurd, but that is what this little electronic circuit described in this article sets out to do. To facilitate the blinking LED does not do magic, it uses a single component, um DIAC. O circuit ...

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Amplifier Active Antenna for Shortwave Radios

Amplificador de Antena Ativa para Radios de Ondas Curtas

This circuit is an antenna amplifier for shortwave radios, called booster or Active Antenna, the circuit is very interesting, because it is installed with the antenna and the power comes through the coax cable 50 ohms coupled to the source of an inductor. Its design provides an extra gain, because there is no signal loss in ...

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