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A diode blocks current flowing in one direction, and passes a current going into the other direction (with a little potential energy loss).
DC is a current flowing into one direction all the time. therefore if you put a diode in a dc circuit it will either always block or always let it pass (provided a certain amount of supply voltage).
if you have an ac circuit the current alternates (ac=alternating current) most of the cases the current flows half of the time in one direction and half of the time into the other direction. so you will have both cases 50% blocking 50% passing through.
so if you put an LED into an ac circuit, no matter what way you put it in you will always see light.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoA diode, except for a zener diode, will only conduct current flow in one direction. AC, then, is converted into pulsating DC. If you follow that up with a capacitor, you will get DC.
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What property of a diode enables it to convert ac to dc?
A diode allows electrons to pass only in one direction. During the negative half cycle of an alternating current the diode will not allow electron current to pass. It is like a one way valve. This property of diode enables it to convert AC into pulsated DC
How does pn junction diode can be used as an electronic switch?
A diode allows current to flow in only one direction. If the current is flowing, the diode has a low resistance and it behaves like a wire or a switch in the on position. If the voltage across the diode is reversed, no current flows and the diode has a very high resistance. It behaves like a switch in the off position. DC voltages are used to switch the diode on or off. The signal that is being switched is usually an AC audio or radio signal. Capacitors block DC but pass AC signals. By combining diodes and capacitors, the AC and DC signals are kept separate and the switch can be built.
How does a diode change from AC to DC?
it clips all the bottom voltage off the sine wave,to get steady dc voltage you will need to clean up the ripple to get good voltage regulation <><><> A diode does not change AC to DC, but it does allow alternating current to flow in only one direction. A diode (or often 2 or 4 diodes) with a filter can be used to rectify AC into DC.
What do you mean the word diode which is used in electronics?
Diode is a Two terminal device which allows flow of curent in forward direction that means it converts DC to AC
When connecting power supplies that convert ac to dc note that the diode will determine the load polarity?
This statement is correct
What property of a diode enables it to convert ac to dc?
A diode allows electrons to pass only in one direction. During the negative half cycle of an alternating current the diode will not allow electron current to pass. It is like a one way valve. This property of diode enables it to convert AC into pulsated DC
Can a diode be used as rectifier diode?
yes, diode can be used as rectifier diode to convert ac to dc
Which diode are usd are rectifying ac into DC?
Junction diodes are used for rectifying ac into dc.
How do you conyert AC to DC?
You rectify AC voltage through a diode bridge to convert it to DC.
How diode convert pure ac to pure dc?
You can't convert ac to pure dc with diode only. The easiest way to convert ac to dc by with diode is by using rectification, it consist of at least 2 diodes (half wave rectifier) and (capacitor is to "smoother" the wave).
What is the difference between diode and converter?
Diode: Which allows power in one direction or which converts AC to dc . Converter: Which converts DC to DC
What device changes ac to dc in an alternator?
diode
What are the roles of a diode and a capacitor in an AC-DC converter?
An AC-DC converter you can operate a device on AC instead of batteries. ~bobbyjack~ : D
What is N4001 diode?
1.0A RECTIFIER diode used to convert ac power to dc power
What devices can be used to block DC and pass AC?
simple capacitor can do this job (to block dc and pass ac).
How do you test a diode bridge?
How to test a diode bridge ? Diode bridge is a device is used to convert an AC signals (say AC voltage) to DC output (say DC voltage). So, to test it, you can apply a AC voltage v = Vm Sin (wt) at its 2 inputs and measure DC output voltage Vdc.
How does pn junction diode can be used as an electronic switch?
A diode allows current to flow in only one direction. If the current is flowing, the diode has a low resistance and it behaves like a wire or a switch in the on position. If the voltage across the diode is reversed, no current flows and the diode has a very high resistance. It behaves like a switch in the off position. DC voltages are used to switch the diode on or off. The signal that is being switched is usually an AC audio or radio signal. Capacitors block DC but pass AC signals. By combining diodes and capacitors, the AC and DC signals are kept separate and the switch can be built.
