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What is zener break down voltage?
The point in the forward operating region of the characteristic curve where conduction starts to increase rapidly is called Knee voltage of a PN Junction Diode.The breakdown voltage of a diode is the minimum reverse voltage to make the diode conduct in reverse.(or) Breakdown voltage is a parameter of a diode that defines the largest reverse voltage that can be applied without causing an exponential increase in the current in the diode.-- Dinakar
What is the break down voltage point for a zenerdiode?
The breakdown voltage point for a Zener diode is 17 volts
What is the purpose of dc biasing of transistor?
to establish Q- point or operating point...
What is PIV.Why PIV of a semiconductor diode is important?
peak inverse voltage... piv of semiconductor is impoetant bcz we need to know after a peak voltage the diode get breakdown or damaged... so we need to know the peak voltage. piv is a point which withstands the maximum reverse biased voltage. after which the diode get damaged.
Operating point in the transistor means?
The operating point of a transistor is simply the point, or circuit condition, where it is biased. With no signal present, the operating point sets the collector-emitter current, and the resulting voltages. Ideally, the operating point is chosen to be the midpoint of the linear region of operation, so as to minimize distortion and to maximize range. Since transistors have varying gains (hFe), and since the gain is temperature dependent, the operating point is usually chosen to be a range that also maximizes stability and minimizes the variability of the individual transistor.
What is use of diode?
Diode is a two terminal semicon. Diode is a Switching device
What is the incremental resistance obtained from the diode equation?
The incremental resistance of a diode is the inverse of the slope of the V-I curve at the operating point.
How do you determine the operating parameters of a diode over its full operating range?
Look at the "Diode Markings"
What DC operating point means?
"The application of a DC voltage in forward bias mode to a circuit containing a diode will result in a specific DC voltage and DC current across the diode, known as the DC operating point, Q point (VDQ, IDQ)." source: http://www.doe.carleton.ca/~achar/notes_2507/Lab3_tutorial_diodes.pdf
What is meant by the threshold point of a diode?
it means the entrance point of a diode
What is more referred to use si diode or a ge diode?
silicon diode is preferred more when compared with germanium diode because in silicon diode the operating voltage is 0.7v where as in germanium diode the operating voltage is 0.3v , germanium is temperature sensitive so it can be easily destroyed by increasing temperature hence silicon diode is preferred more
When operating as a voltage regulator the breakdown in a Zener diode occurs due to which effect?
avalanche
What is the definition of operating point of diode?
The current you set it to work at. Using for example resistors you can set the voltages and currents at a certain DC level. At that point the transistor will work. It is mostly (but not always) used to put the transistor in its linear region.
What is zener break down voltage?
The point in the forward operating region of the characteristic curve where conduction starts to increase rapidly is called Knee voltage of a PN Junction Diode.The breakdown voltage of a diode is the minimum reverse voltage to make the diode conduct in reverse.(or) Breakdown voltage is a parameter of a diode that defines the largest reverse voltage that can be applied without causing an exponential increase in the current in the diode.-- Dinakar
What is OA in OA79 diode?
In OA79, the letter A stands for rectifier diode and O stands for Germanium. It acts as a point contact germanium diode and also be replaced with 1N4148 depending on the circuit.
Why can't a conventional pn junction be used for high frequency switching applications?
If the reverse recovery time of the diode is too long for the operating frequency, the diode will never turn off.
Why operating point of transistor is called as q point?
Q-point means motionless point. At operating point the transistor emitter current and collector current doesn't change. That is why operating called as a quiesent point (q-point)
