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It prevents the voltage spike that occurs when the magnetic lines of force cut across the solenoid windings when someone shuts the power off the solenoid. It is called inverse voltage and on a 12 volt coil, when you turn it off, the collapsing magnetic field can generate an inverse voltage of 200 volts or more for a split second. This is why sometimes you can get a "poke" out of a 12 volt system. It is the inverse voltage spike that causes a momentary shock to your fingers or body. (this momentary voltage is not harmful to a human). when a coil has a charge cause by applying DC and suddenly disconnected this charge will manifest as a voltage of opposite polarity across the coil the diode will clamp this charge to .6-.7 v removing reverse breakdown voltage present
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What is use of diode?
Diode is a two terminal semicon. Diode is a Switching device
What is the use of zenor diode in practical use?
voltage regulation
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.
What is the use of PN diode?
there are many uses. one major use i remember is in rectification i.e convert ac to dc For switch operation
What is a large slower acting diode?
it is a rectify diode
How does a diode work on an engine shutoff solenoid?
A diode is a one way check valve basically. it will let current pass one way but not the other.
What is use of the diode?
The use of the pn diode is for rectification. It can also be used as a switch.
Can you use resistance in place of diode in clipping circuits?
no we not use resistance in place of diode.
Which diode does not use negative resistance in its operation?
Backward diode
What is purpose of diode in solenoid?
If the coil is powered with DC voltage, an inductive voltage is created anytime power to the coil is de-energized. The inductive voltage is called an inductive kick and it is up to ten times the applied voltage and is in reverse polarity to the applied voltage. A diode or other type of suppression device must be connected across the coil of the solenoid to protect any other electronic components in the circuit that may be damaged by this voltage. The diode is connected in reverse bias across the DC solenoid coil so that when voltage is applied in normal polarity, the diode does not provide a path for current. When the solenoid coil is de-energized, the inductive voltage is the opposite polarity to the power supply, so it will flow through the diode and back into the coil. Since the coil is made of a large length of wire. the energy of the inductive voltage will be dissipated as it moves through the wire. This will render the excessive inductive voltage harmless. The fact that the inductive voltage will travel through the diode in the forward bias direction means the 0.7-1 volt drop across the diode junction will also limit the V=< (dv/dt) surge. Fig. 4 (below) illustrates an example of the diode connected across the coil of a solenoid that is powered with DC voltage.
What is use of diode?
Diode is a two terminal semicon. Diode is a Switching device
What causes a diode to fail on a 240v solenoid valve?
Why would it? And is this the diode across the windings of the coil that supplies the back EMF (inductive kick) supression? There isn't a good reason for it to fail. A bit more information is needed here.
How do you use diode in a sentence?
Example sentence - The little red diode can be used as a pin on a tie.
How can you make a bypass diode?
the diode is forward bias ANSWER: A bypass diode is used to bypass circuitry as soon as the diode is forward bias by 0.6 volts The use it to bypass to prevent damage to the circuitry
What is the use of zenor diode in practical use?
voltage regulation
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
How do you use scr as a diode?
scr is basically a three terminal device can be used as diode by leaving one terminal
