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Subjects>Engineering & Technology>Electrical Engineering

What is cut in voltage of LED?

Anonymous

∙ 14y ago

Updated: 4/28/2022

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Wiki User

∙ 14y ago

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Q: What is cut in voltage of LED?

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What is LED Forward Voltage?

The forward voltage of an LED is the voltage that must be applied across the leads of an LED, anode to cathode, in order for the LED to function and turn on.

What is meant by cut in voltage in diode?

Cut in voltage (Knee voltage): The forward voltage at which the current through the P-N Junction starts increasing rapidly is called as Cut in voltage or knee voltage.

What happens to an LED When the voltage is to high?

when a LED is subjected to a high voltage it will heat up and burn the internal junction, which will leave the LED open circuit.

What is Cut-off voltage in fet?

fet is a voltage controlled device...cut off voltage in fet refers to that voltage of the gate - source junction at which the current flow through channel is zero

What is knee voltage and breakdown voltage?

Knee voltage (cut in voltage) :-The forward voltage at which the current through the P-N Junction starts increasing rapidly is called as Cut in voltage or knee voltage Breakdown voltage :-It is the minimum reverse voltage at which the P-N Junction can conduct without damage to the current

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Related Questions

What is LED Forward Voltage?

The forward voltage of an LED is the voltage that must be applied across the leads of an LED, anode to cathode, in order for the LED to function and turn on.

What is meant by cut in voltage in diode?

Cut in voltage (Knee voltage): The forward voltage at which the current through the P-N Junction starts increasing rapidly is called as Cut in voltage or knee voltage.

Why does a Led have a 470 resistor connected to the LED?

A: That resistor is there to limit the current to the LED it can be any value if the voltage is decreased or increased or no resistor if the voltage across the led is equal to the forward voltage drop.

Cut in voltage?

The forward voltage at which the current through the junction starts increasing rapidly, is called the knee voltage or cut-in voltage.

Definition of cut in voltage of diode in electronics?

zener cut in voltage

Give the operating voltage of LED?

A; a LED can have a voltage of 1.8v to 5 or higher voltage whites and red are usually in the low voltage while green and blue are int he range of higher voltage

What is the value of the voltage the led light needs?

There's no set voltage that'll run ALL led's, it'd depend on the particular led.

What is meant by cut in voltage?

Cut-in voltage is the value of voltage at which appreciable current begins to flow when a pn junction is forward biased.

The voltage drop across led is?

The voltage drop across an LED varies, but is typically around 2 volts.

What happens to an LED When the voltage is to high?

when a LED is subjected to a high voltage it will heat up and burn the internal junction, which will leave the LED open circuit.

Why must an LED always have a resistor connected in series with it?

An LED usually has a resistor connected in series with it because an LED (light emitting diode) is not linear in current to voltage (like a resistor) and has to be operated within specified current and voltage conditions. In most circuits the supply voltage is higher than the forward voltage of the LED so the LED would burn up from too much current without a current limiting resistor in series. The resistor sets the voltage and current to a good operating point (voltage and current) for the LED by dropping some voltage across it. The operating point varies depending on the size, type and manufacturer of an LED so the LED's data is used to select the right resistor size for a given voltage source.

Fet in cut off voltage?

fet is a voltage controlled device...cut off voltage in fet refers to that voltage of the gate - source junction at which the current flow through channel is zero

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