Electronics: Mei 2011

Sabtu, 28 Mei 2011

Zener diodes are diodes that have the characteristics to channel electrical current

Zener diodes are diodes that have the characteristics to channel electrical current flowing in the opposite direction if the applied voltage overshoot “voltage damaged” (breakdown voltage) or “Zener voltage”. This is different from ordinary diodes which...

ZENER DIODE TESTING

ZENER DIODE TESTING The testing of zener diodes requires a variable dc power supply. A typical test circuit can be constructed, as shown in figure 4-19. In this circuit, the variable power supply is used to adjust the input voltage to a suitable value...

Jumat, 27 Mei 2011

Zener has a unique character a work in reverse bias, in contrast with ordinary diodes

Zener has a unique character a work in reverse bias, in contrast with ordinary diodes.zener more doping at the junction P & N, so that the diode breakdown voltage can be more quickly achieved.on ordinary diode breakdown voltage will occur hundreds...

Changing the zener diode with ordinary photodiode

Changing the zener diode with ordinary photodiodeCommon zener diodes in the know with some kind of voltage limits easily available in the market, the voltage range from 2.7 Volt varied from up to 160 volts, and even some manufacturers provide a diode...

Jumat, 13 Mei 2011

The circuit comprises transmitter and receiver

The circuit comprises transmitter and receiver, the cable under test linking the two. The transmitter is nothing more than a “LED chaser” the 4011 IC is wired as astable and clocks a 4017 decade counter divider. The 4017 is arranged so that on the 9th...

IC tester

IC testerAn Integrated Circuit tester (IC tester) is used to test Integrated Circuits (ICs). We can easily test any digital IC using this kind of an IC tester. For testing an IC, we need to use different hardware circuits for different ICs; like we need...

Analog To Digital Converter

Analog To Digital ConverterThere are little than two weeks until most of the telecasting stations of the cross in the North government make the lasting electric switch TV. Are you at the ready? There antemeridian, then , KNVN twenty-four and KHSL twelve...

Kamis, 12 Mei 2011

Various kinds of wires

Various kinds of wiresUTP ( unshielded twisted pair)UTP cable or unshielded twisted pair cable is the cable used to create a computer network or cable network which contains four (4) pairs of wires that each pair is the twin with RJ-45 connector end.Type...

Minggu, 08 Mei 2011

Transformer Types

Transformer TypesIf the voltage output terminal is greater than the voltage that is changed, the transformer is used to function as Raising the voltage. Conversely if the voltage output terminal is smaller than the converted voltage, the transformer...

TRANSFORMER

TRANSFORMERAt home maybe you're ever faced with the voltage issue, when you will turn on the radio that requires a voltage of 6 V or 12 V. Whereas the voltage supplied by PLN 220 V. Even generators produce very high voltage to reach up to tens of thousands...

APPLICATION electromagnetic induction

DC dynamo chartAC dynamo chartAC generator chartAPPLICATION electromagnetic inductionIn electromagnetic induction deformed energy of motion into electrical energy. Electromagnetic induction is used in generating electricity. Generating electrical energy...

Occurrence Cause Induction emf

Occurrence Cause Induction emfWhen the magnetic north pole rod driven into the coil, the number of line styles contained in the magnetic coils multiply. Increasing the number of lines of force raises emf induced at the ends of the coil. Induction emf...

Modulasi OT426

Modulasi OT426Until the mid 80'an, AM mode still dominates the 80m band radio communication. AM transmitters are easy to make, and very suitable for beginners who want to explore the techniques of radio communication. With the enactment KEP-065/OP/KU/2009,...

How to make a transfomer

How to make a transfomer (transformer):First: Determine the transformer VA:For example: We will create a voltage transformer with 2 x 32 volt, 5 Ampere. Secondary Power: 2 x 32 x 5 = 320 VA. Primary Power: 1.25 x 320VA = 400VA.Second: Calculated nuclear...

Power Inverter

This power inverter circuit will provide a very stable “Square Wave” Output Voltage. Frequency of operation is determined by a pot and is normally set to 60 Hz. Various “off the shelf” transformers can be used. Or Custom wind your own for best results.An...

Sabtu, 07 Mei 2011

STEPS refit TELEVISION

STEPS refit TELEVISIONPictured above is an example of how to dispose of the remaining voltage on the flyback letterhead.In a television repair, television needs to be removed when the machine is then used to dispose of the remaining voltage on the flyback...

Electronic Basics Tutorial

Electronic Basics Tutorial:Various kinds of electronic componentsTransistorHow to Measure TransistorCondenser / capacitorHow To Measure Capacitor ElcoMeasuring Capacitor Ceramic / mylarHow to Read The mylar & Ceramic CapacitorResistorsResistor Color...

crt tv solutions damaged

crt tv solutions damagedPerhaps we often hear people say "oh TV broken jug." The question that arises then, is it true they were damaged tube TV. The answer may be yes can not.Sometimes we look at our screen is not intact (depressed / or folding) so...

Kamis, 05 Mei 2011

A micro-controller 24FC1025 EEPROM is a single integrated circuit

A micro-controller 24FC1025 EEPROM is a single integrated circuit, commonly with the following features:central processing unit - ranging from small and simple 4-bit processors to complex 32- or 64-bit processorsvolatile memory (RAM) for data storageROM,...

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