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Offline haikel774
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« Reply #630 on: July 14, 2011, 09:46:09 am »
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hi Wink

the irf840 is hot Exhausted in the schematic the R5 is 2.2K shall i change it to 680ohm? and the R6 which is 680 ohm shall i change it to 1k?

thank you very muchhhhhh Smiley



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Offline japanese
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« Reply #631 on: July 14, 2011, 10:13:34 am »
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Hi haikel774
  step by step   Read carefully  in the previous answer  and will work well.

best time

j.

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Offline haikel774
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« Reply #632 on: July 14, 2011, 11:54:17 am »
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ok Smiley

yhank you

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Offline haikel774
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« Reply #633 on: July 14, 2011, 04:46:47 pm »
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Hi Japenese

This now all works well I made a series resistor (3.3ohm), but it heats Sad

thank you

haikel774


Posted on: July 14, 2011, 04:39:42 PM
hi Japenese

please how to make a coil 1M

thank you very much


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« Reply #634 on: July 14, 2011, 05:01:58 pm »
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Hi haikel774
                   This is normal because it passes a large current range of 2 to 4 amp, because the wire diameter used a fairly large, use of resistant 3.3/1 or 2 w.

1x1cm 0.5mm  8LAYER   4M   cat5.
1x1m then wind 17 turns. Use wire with 1mm

 What are the results obtained ?

best time
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Offline haikel774
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« Reply #635 on: July 15, 2011, 01:43:10 am »
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 :)hi japenese
how many turns shall i do for 1M coil with wire cat5 and which resistance is needed here?

for instanse the coil work well Grin

thank you vvvvvvvvvvvvvvvveryyyyyyyyyyyyyyyy much




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« Reply #636 on: July 15, 2011, 07:40:03 am »
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hi japanese Smiley

is what I use a ceramic resistance 4.7ohm


thank you

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« Reply #637 on: July 15, 2011, 08:16:58 am »
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 Hi haikel774


  1x1cm 0.5mm  8LAYER   4M   cat5.(4meter =1+1+1+1   =8tu)
  total  resistance= 6ohm =coil + series resistor 
  4.7/5w OK

best time

j.

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« Reply #638 on: July 15, 2011, 08:27:46 am »
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 japanese الشلام

بارك الله فيك

والف شكر

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Offline Engr Obaid
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« Reply #639 on: July 15, 2011, 10:00:41 am »
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Dear,

Use 24 SWG Copper wire 8 turns for this 1x1 m coil, will give u best result.

Best Regards,

Engr Obaid

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