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To turn a diode on, you need to apply a forward voltage across it, ensuring that the positive terminal of the voltage source is connected to the anode and the negative terminal to the cathode. This forward voltage must exceed the diode's threshold, known as the forward voltage drop (typically around 0.7V for silicon diodes and 0.3V for germanium diodes). Once this voltage is applied, the diode allows current to flow through it, effectively turning it on.
What else can I help you with?
What is the supply for a diode?
The diode voltage drop is 0.7 volts, so you need that much to turn it on. Current is controlled by a resistor in series.
Can you take a 2000mW laser diode and turn it into a 50mW laser diode if so how do you do it?
yes, just look it up on youtube, there will be instructional videos! good luck!
Difference between gunn diode and pin diode?
gunn diode is transfered electron device & PIN diode is semiconductor device
What is a real diode?
whether we know that p-n diode is real diode. But still in case of semeconductor we see then silics is real diode.
The bluk resistance of a diode depends on?
Bulk resistance of diode depends on how it is biased. The bulk resistance of a diode is the approximate resistance of the diode when it is forward biased.
What is the supply for a diode?
The diode voltage drop is 0.7 volts, so you need that much to turn it on. Current is controlled by a resistor in series.
How to turn off a circuit with photodiode?
with a simple led and photo diode
If a diode is connected to a battery and a lamp what happens when the diode direction is reversed?
I diode allows current to flow in only one direction. Therefore, if a lamp is "on" in a DC circuit, and the diode in series with the lamp is reversed, the light will be turnned off due to the diode blocking current flow (unless the voltage is above the breakdown voltage of the diode - if this is the case, the diode will fail). If this is an AC circuit, every half cycle the diode will turn on, then the next half cycle it will turn off. To your eye, the bulb will most likely appear slightly dim due to this on then off cycling. If the diode is reversed, there will be no apparent change. The difference is the half cycle the diode would have been off before reversing, it will now be on, etc.
Under what conditions will a junction diode turn on?
Forward bias past the knee.
Can you take a 2000mW laser diode and turn it into a 50mW laser diode if so how do you do it?
yes, just look it up on youtube, there will be instructional videos! good luck!
Can you use a capacitor instead of zener diode in biased clipping circuit?
No. The purpose of the zener diode is to clip (turn on) at a certain voltage. A capacitor will not exhibit this behavior.
List the two conditions under which a diode is operated?
A diode is a semiconductor material which has p region and n region. In order to "turn on" and conduct current in the forward direction, a diode requires a certain amount of positive voltage to be applied across it. An ideal diode conducts only when the diode is forward biased, and then the voltage drop across the diode (Vd) is zero. When the ideal diode is reverse biased, no current flows. The two conditions to operate a diode are: (a) Current flow is permitted; the diode is forward biased. (b) Current flow is prohibited; the diode is reversed biased. When the polarity of the battery is such that current is allowed to flow through the diode, the diode is said to be forward-biased.
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.
What isDifference between ordinary rectifier and precision rectifier?
A simple rectifier circuit uses a diode and there is a turn ON voltage for the diode. The input voltage has to exceed the turn ON voltage (0.6V for ordinary Si diode) before rectification is achieved. A precision rectifier is an active circuit using an opamp and a diode in the feedback loop. This overcomes the turn-on "knee" voltage. The op amp reduces the turn-on voltage of a diode in its feedback loop by a factor equal to the open-loop gain of the op amp. For practical op amp gains this reduces the forward voltage to a fraction of a mV, thus giving a "precision" or near ideal diode characteristic for the rectifier function.
Can you turn a diode in the wrong direction?
Yes, a diode can be connected in the wrong direction, which is known as reverse biasing. In this configuration, the diode will not conduct current under normal operating conditions, effectively acting as an open circuit. However, if the reverse voltage exceeds the diode's breakdown voltage, it may conduct in reverse, potentially damaging the diode. Therefore, it's important to connect diodes with the correct polarity to ensure proper functionality.
How is zener diode different from a conventional diode or ideal diode?
zener diode :zener diode operates under reverse bias voltageideal diode :ideal diode operates under forward bias voltage
Amp power wire fuses keep blowing amp will not turn on?
the power suppy diode are probably shorted.
