20 Mart 2011 Pazar
ONline film izleme sitesi
Online film izleme sitesi olan sinemasikları tekrar yayın hayatına devam etmektedir. Hemde bir gezegen oluşturarak . Evet yanlış duymadınız evrende sinemasikları olarak bilinen online film seyretici olan site bir gezegen olmuştur
21 Kasım 2010 Pazar
Sinem Aşıkları Bu sitede
Sinema Aşıkları , Sinema sevenler online film izleyebilecekleri bir site açılmıştır: Sinemasigi.com .
Bedava indirmeden film izleyebileceğin ,reklamsız bir o kadarda tasarım yönünde güzel olan online film seyredebileceğiniz sitedir.
Sinemasigi.com Ziyaretçileri rahatsız etmeden bir amaç gütmeden bedava film seyretmenizin için türk halkına armağınıdır ..
Bedava indirmeden film izleyebileceğin ,reklamsız bir o kadarda tasarım yönünde güzel olan online film seyredebileceğiniz sitedir.
Sinemasigi.com Ziyaretçileri rahatsız etmeden bir amaç gütmeden bedava film seyretmenizin için türk halkına armağınıdır ..
27 Ağustos 2010 Cuma
The Triac
anode-cathode voltage it can be switched on (conducting
mode). For a negative anode-cathode voltage, the thyristor
is always off (blocking mode). A device which can be
switched on for both a positive and a negative anodecathode
voltage is the triac.
The triac is simply the anti-parallel connection of two
thyristors.
mode). For a negative anode-cathode voltage, the thyristor
is always off (blocking mode). A device which can be
switched on for both a positive and a negative anodecathode
voltage is the triac.
The triac is simply the anti-parallel connection of two
thyristors.
The Thyristor
The Thyristor
The thyristor is a semiconductor controlled rectifier (SCR)
used in power electronics. It consists of FOUR
semiconductor layers, i.e. there are THREE pn-junctions.
The three terminals are called
Anode (greek: Anodoz = upwards)
Cathode (greek: Kaqodoz = downwards)
Gate (sometimes called “base”)
The figure below depicts the thyristor's layers, whereas the
inner two layers are weakly doped.
The thyristor is a semiconductor controlled rectifier (SCR)
used in power electronics. It consists of FOUR
semiconductor layers, i.e. there are THREE pn-junctions.
The three terminals are called
Anode (greek: Anodoz = upwards)
Cathode (greek: Kaqodoz = downwards)
Gate (sometimes called “base”)
The figure below depicts the thyristor's layers, whereas the
inner two layers are weakly doped.
The Field Effect Transistor
The Field Effect Transistor
With the field effect transistor, the current through a socalled
channel is controlled by means of an electric field.
Hence, field effect transistor. This principle is similar to the
operation of the nowadays rarely used vacuum tube. With
respect to the vacuum tube, the three terminals of the field
effect transistor are called:
Source, which emits the electrons
Drain, which collects the electrons
Gate, which controls the electron flow
The electric field is generated by a voltage. Furthermore,
since only one kind of carrier, e.g. electrons, is involved in
the operation, the field effect transistor is also called
unipolar transistor.
With the field effect transistor, the current through a socalled
channel is controlled by means of an electric field.
Hence, field effect transistor. This principle is similar to the
operation of the nowadays rarely used vacuum tube. With
respect to the vacuum tube, the three terminals of the field
effect transistor are called:
Source, which emits the electrons
Drain, which collects the electrons
Gate, which controls the electron flow
The electric field is generated by a voltage. Furthermore,
since only one kind of carrier, e.g. electrons, is involved in
the operation, the field effect transistor is also called
unipolar transistor.
Why bipolar transistor
Why bipolar transistor?
With the bipolar transistor two kind of carriers are
involved: electrons and holes. Hence, bipolar transistor.
In an n-material, the electrons are the majority carriers.
In a p-material, the holes are the majority carriers.
Since the bipolar transistor consists of two pn-junctions,
there are two possible constellations:
pnp and npn, whereas the npn constellation is most
common.
With the bipolar transistor two kind of carriers are
involved: electrons and holes. Hence, bipolar transistor.
In an n-material, the electrons are the majority carriers.
In a p-material, the holes are the majority carriers.
Since the bipolar transistor consists of two pn-junctions,
there are two possible constellations:
pnp and npn, whereas the npn constellation is most
common.
The Bipolar Transistor, What is a transistor?
The Bipolar Transistor
What is a transistor?
The word transistor is an acronym meaning trans resistor!
That is, a resistor is controlled through a resistance.
Hence a transistor has an input and an output, whereas
in- and output have a common terminal. The transistor
has therefore three terminals!
The three terminals are called
Emitter, which emits electrons
Collector, which collects the electrons
Base, which controls the electron flow
A transistor is made of semiconductors.
What is a transistor?
The word transistor is an acronym meaning trans resistor!
That is, a resistor is controlled through a resistance.
Hence a transistor has an input and an output, whereas
in- and output have a common terminal. The transistor
has therefore three terminals!
The three terminals are called
Emitter, which emits electrons
Collector, which collects the electrons
Base, which controls the electron flow
A transistor is made of semiconductors.
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