P-N junction diode:
Semiconductor materials was to join a P-type material with an N-type to form a simple but impotant semiconductor device called a diode.
the term diode denotes a two-electrode device. A semiconductor diode is simply a P-N junction with connecting leads or terminals on the two sides of the P-N junction. P-N junction is grown out off crystal. A diode is a unidirectional devices permitting the easy flow of current in one direction but restraining the flow in opposite direction.
A major application of diodes is in rectification i.e., in conversion of ac into dc.semiconductor diode is becoming more and more popular these days due to its smaller size,cheapness,robustness and higher operating efficiency.
gray color is denoted a cathode terminal.
The P-type material of the diode is the positive electrode and is called the anode whereas the N-type material is the negative electrode and is called the cathode. The arrow symbol used for the anode represents the direction of flow of conventional current. the electrode current flow in a direction opposite to the arrow.
The symbol for semiconductor diode is shown in figure Diode have polarity and, therefore,must be connected in circuits correct direction. small diodes are marked with a band to indicate the cathode end. larger diodes use the diode symbol to indicate their polarity. Diodes are available in many package configuration,depending on their ratings.Small diodes,used for low current application in circuits up to 1A of average current,are generally packaged in a simple glass or plastic tube.Diode for handling larger currents are packaged in metal plates to dissipate heat.
Semiconductor materials was to join a P-type material with an N-type to form a simple but impotant semiconductor device called a diode.
the term diode denotes a two-electrode device. A semiconductor diode is simply a P-N junction with connecting leads or terminals on the two sides of the P-N junction. P-N junction is grown out off crystal. A diode is a unidirectional devices permitting the easy flow of current in one direction but restraining the flow in opposite direction.
A major application of diodes is in rectification i.e., in conversion of ac into dc.semiconductor diode is becoming more and more popular these days due to its smaller size,cheapness,robustness and higher operating efficiency.gray color is denoted a cathode terminal.
The P-type material of the diode is the positive electrode and is called the anode whereas the N-type material is the negative electrode and is called the cathode. The arrow symbol used for the anode represents the direction of flow of conventional current. the electrode current flow in a direction opposite to the arrow.
The symbol for semiconductor diode is shown in figure Diode have polarity and, therefore,must be connected in circuits correct direction. small diodes are marked with a band to indicate the cathode end. larger diodes use the diode symbol to indicate their polarity. Diodes are available in many package configuration,depending on their ratings.Small diodes,used for low current application in circuits up to 1A of average current,are generally packaged in a simple glass or plastic tube.Diode for handling larger currents are packaged in metal plates to dissipate heat.
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