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What the purpose of the diode rectifier used with a ac analog voltmeters?
Wiki User
∙ 13y ago
The analog voltmeter uses a dial, which changes its position in accordance with applied voltage - however, this voltage must be DC in order for this to work (it's through either thermal or magnetic expansion). So, the AC must first be rectified into DC, before any measurement can take place.
Of course, rectifying AC into DC does increase the voltage (as it must - this action multiplies the voltage value by the square root of two), so before the measurement can occur, this increase is properly sanitized by associated circuitry (for example, a voltage divider could be used).
Wiki User
∙ 13y ago
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Can a diode be used as rectifier diode?
yes, diode can be used as rectifier diode to convert ac to dc
What effect does an open diode have on the output voltage of a half wave rectifier and on a full wave rectifier?
An open diode will result in no output from a half wave rectifier, and an open diode will cut the output of a full wave rectifier in half.
Difference between 4 diodes and 2 diodes rectifier?
a 2 diode rectifier is a center tap rectifier an a 4 diode rectifier will be a bridge rectifier *********************************************************** A two-diode rectifier is not always a centre-tap rectifier. If the two diodes are connected to the same end of a transformer's secondary, one by its anode and one by its cathode, one will proved a positive voltage with respect to trhe other end of the winding and the other will provide a negative voltage. (But perhaps that isn't considered a two-diode rectifier - but a two single-diode ones.)
Is rectifier a non linear device?
diode is nonlinear device,so device from diode is also nonlinear
What happens when one of the diodes is removed from the bridge rectifier?
Nothing will happen to the diode but that rectifier effectively becomes a half-wave rectifier.
What is the purpose of half wave rectifier?
it has only one diode
Can a diode be used as rectifier diode?
yes, diode can be used as rectifier diode to convert ac to dc
Why to use four diodes when two diodes also can serve the purpose in bridge rectifier?
Four diode rectifier not require a center tapped transformer.
Can diode be used as rectifier?
yes ofcourse diode can be used as rectifier but it's an uncontrolled rectification.
Why tunnel diode differ from the rectifier diode?
tunnel diodethe doping level of the tunnel diode is high when compared with the rectifier diodeit exhibits negative resistancerectifier diodethe doping level of rectifier diode is low when compared with the tunnel diode
What is the function of diode what is the function of diode?
A diode is used primarily as a Rectifier
What effect does an open diode have on the output voltage of a half wave rectifier and on a full wave rectifier?
An open diode will result in no output from a half wave rectifier, and an open diode will cut the output of a full wave rectifier in half.
How can we Diode can be used as a rectifier?
A diode is used to stop the negative voltage swing in an AC signal, so you only get the positive portions.diode-rectifier
What is the function of a rectifier diode?
A rectifier can convert AC to pulsating DC.
Purpose of bridge diode in a power supply?
Bridge diodes are generally used in a bridge rectifier to convert AC into DC.
What are merits and demerits of bridge rectifier?
Merits a diode bridge rectifier is simple to build
What does an alternator diode rectifier do?
The alternator diode rectifier converts the AC current being produced by the alternator to DC from which most of the electronics installed and battery use.
