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Old 08-16-2011, 05:59 PM
surinder surinder is offline
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Default thyristor control dc drive

I want to make a three phase analogue thyristor control dc drive. So pl. help if there is any circuit for this drive.
Thanks. surinder
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Old 08-16-2011, 09:15 PM
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praondevou praondevou is offline
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Provide as much information as possible please.

What DC control voltage do you have available? Can you use triacs or does it have to be thyristors? What load do you want to switch (power)? What's the 3-phase voltage (country)?
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Old 08-17-2011, 06:35 AM
surinder surinder is offline
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Default thyristor control dc drive

Dear Sir,
I am located in India and supply voltage is 3 phase 440v here. I want to make a analouge dc drive for 10 hp dc motor and its armature voltage is 440 v dc.So pl.suggest any circuit which we can use for firing of thyristors (used with single quadrent configuration) .
thanks.
surinder
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Old 08-17-2011, 06:55 AM
t_n_k t_n_k is offline
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Quote:
Originally Posted by surinder View Post
Dear Sir,
I am located in India and supply voltage is 3 phase 440v here. I want to make a analouge dc drive for 10 hp dc motor and its armature voltage is 440 v dc.So pl.suggest any circuit which we can use for firing of thyristors (used with single quadrent configuration) .
thanks.
surinder
Small power variable speed DC motor drives are readily available off the shelf with all the "bells & whistles" you might need - why do you want to build your own from scratch?
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Old 08-17-2011, 08:40 AM
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Kermit2 Kermit2 is offline
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Doubtful if you could 'make' one as well or as cheaply as you could buy one.

They are complicated and difficult to design.

http://datasheet.elcodis.com/pdf/26/87/268768/fc36m.pdf is just an example and shows the complexity of a such drivers.
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