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PHASE-ANGLE CONTROL OF SCR USING AT89C51


Posted by: seminar class
Created at: Tuesday 22nd of March 2011 12:35:11 AM
Last Edited Or Replied at :Monday 22nd of April 2013 01:54:25 AM
phase angle control using scr , thyristor phase angle, scr zero crossing current detector , thyristor angle control, phase ange control in phase controlled rectifiers , zero crossing detector for 230v, firing angle pdf ppt , thyristor firing angle through microprocessor, ppt for firing of thyristor based on microcontroller , use scr to phase shift for controlling current, how to genarate firing pulses for scr , phase angle control of scr, scr zero crossing detector , microcontroller based 3ph firing angle control fundamentals, thyristor fire angle controller with microcontroller , zero crossing detector based scr firing, standalone zero crossing detector , at89c51,
ailable at the collector, (at point ‘B’) as shown in the second waveform.
3. As this positive pulse is inverted by transistor T2, it produces one negative pulse of the same width at ‘C’. This is shown as the thied
Waveform.
4. This negative pulse is fed to the interrupt pin (INT1) of the microcontroller, which acts as an interrupt for the microcontroller. The microcontroller then generates a positive pulse on P2.0 (at point ‘D’) after some delay. This turns ‘off’ the internal LED of the opto-coupler (MCT2E) AND A POSITIVE PULSE IS PRODUCED AT OUTPUT ‘E’. This is used for..................[:=> Show Contents <=:]



PHASE-ANGLE CONTROL OF SCR USING AT89C51


Posted by: seminar class
Created at: Tuesday 22nd of March 2011 12:35:11 AM
Last Edited Or Replied at :Monday 22nd of April 2013 01:54:25 AM
phase angle control using scr , thyristor phase angle, scr zero crossing current detector , thyristor angle control, phase ange control in phase controlled rectifiers , zero crossing detector for 230v, firing angle pdf ppt , thyristor firing angle through microprocessor, ppt for firing of thyristor based on microcontroller , use scr to phase shift for controlling current, how to genarate firing pulses for scr , phase angle control of scr, scr zero crossing detector , microcontroller based 3ph firing angle control fundamentals, thyristor fire angle controller with microcontroller , zero crossing detector based scr firing, standalone zero crossing detector , at89c51,
layout in Fig.5.
..................[:=> Show Contents <=:]



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