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ac voltage controller using triac and diac combination pdf


Posted by:
Created at: Wednesday 14th of August 2013 05:31:03 AM
Last Edited Or Replied at :Wednesday 14th of August 2013 05:31:03 AM
ac voltage controller using triac and diac combination , ac voltage controller using triac diac combination, controller triac ,
ac vo..................[:=> Show Contents <=:]



ac voltage controller using triac and diac


Posted by:
Created at: Sunday 14th of October 2012 03:51:04 AM
Last Edited Or Replied at :Sunday 06th of January 2013 03:44:43 AM
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I NEED INFORMATION ABOUT AC VOLTAGE CONTROLL CONTROL USING DIAC AND TRIAC CIRCUIT OPERATION.
PLEASE PROVIDE ME THE ABOVE RELATED MATERIAL..................[:=> Show Contents <=:]



acvoltagecontroller


Posted by: tmplsureshkumar
Created at: Saturday 06th of March 2010 11:27:27 PM
Last Edited Or Replied at :Monday 08th of March 2010 04:46:08 AM
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..................[:=> Show Contents <=:]



OPTIMAL VOLTAGE REGULATOR PLACEMENT IN A RADIAL DISTRIBUTION SYSTEM USING FUZZY LOGIC


Posted by: sriramasekhar
Created at: Saturday 10th of December 2011 05:12:41 AM
Last Edited Or Replied at :Sunday 11th of December 2011 10:31:01 PM
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pls send me the ppt ofOPTIMAL VOLTAGE REGULATOR PLACEMENT..................[:=> Show Contents <=:]



A METHOD FOR POWER QUALITY IMPROVEMENT IN CLASSICAL AC VOLTAGE CONTROLLER


Posted by: seminar class
Created at: Thursday 14th of April 2011 04:18:06 AM
Last Edited Or Replied at :Thursday 14th of April 2011 04:18:06 AM
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In the circuit, we are practically using four power devices.
 With resistive loads, there is no need of S3 and S4 power devices.
 In the positive half cycle S1 is triggered as required and output, i.e., ac chopped waveform is obtained.
 During the negative half cycle, S2 is triggered as required and output is obtained.
 As with resistive load, as there is no freewheeling action required, the S3 and S4 devices can be simply neglected.
 In the case of inductive loads, the inductive current need to be freewheeled during the off period of the main switches S1 and S2.
 If..................[:=> Show Contents <=:]



8 CANDIDATE QUIZ BUZZER USING 8051 MICRO CONTROLLER AT89C51


Posted by: seminar class
Created at: Friday 04th of March 2011 01:40:02 AM
Last Edited Or Replied at :Monday 10th of March 2014 06:13:18 AM
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load resistance RL and hence the load current flows through RL.
For the negative half cycle of the input ac voltage, diodes D2 and D4 conduct whereas, D1 and D3 remain OFF. The conducting diodes D2 and D4 will be in series
with the load resistance RL and hence the current flows through RL in the same direction as in the previous half cycle. Thus a bi-directional wave is converted into a unidirectional wave.
Filter
Capacitive filter is used in this project. It removes the ripples from the output of rectifier and smoothens the D.C. Output received from this filter is constant until ..................[:=> Show Contents <=:]



acvoltagecontroller


Posted by: tmplsureshkumar
Created at: Saturday 06th of March 2010 11:27:27 PM
Last Edited Or Replied at :Monday 08th of March 2010 04:46:08 AM
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Phase Angle Control in Triac based Single phase AC RegulatorsA Study


Posted by: computer science technology
Created at: Monday 18th of January 2010 11:43:53 AM
Last Edited Or Replied at :Thursday 17th of March 2011 01:13:37 AM
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ships are nnncacos=and nnncbsin=.
The rms value of nth harmonic component 2/nc=
9
Vm-Vmvoa pp + a2p(t) Fig. 28.3: Input and output voltage waveforms of a

single-phase ac regulator with resistive load.
The output (load) voltage waveform (Fig. 28.3) consists of two parts,

the first one is positive in the positive half cycle, while the second

part is negative in the next (negative) half cycle. The waveform has

half-wave asymmetry, with only odd (12+=mn) harmonics being present.

The even () harmonics are not present in this case, as the second part

is cancelled by the ..................[:=> Show Contents <=:]



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