http://www.circuitstoday.com/speed-control-for-pcb-drill An Authentic Resource on Electronics Thu, 09 Feb 2012 02:28:13 +0000 hourly 1 http://wordpress.org/?v= http://www.circuitstoday.com/speed-control-for-pcb-drill#comment-9265 cled Thu, 23 Sep 2010 10:05:51 +0000 http://www.circuitstoday.com/?p=2836#comment-9265 never mind the ic.... never mind the ic….

]]> http://www.circuitstoday.com/speed-control-for-pcb-drill#comment-4910 admin Wed, 13 Jan 2010 07:26:19 +0000 http://www.circuitstoday.com/?p=2836#comment-4910 <strong>reply to probir :</strong> Maximum current LM3578 can handle is 0.75mA and it is not sufficient for big motors. The PWM signal from the IC drives the IRF540 and IRF540 drives the motor accordingly.IRF540 can easily handle currents up to 20A. The output current capability of the IC is well sufficient for driving the IRF540. reply to probir :
Maximum current LM3578 can handle is 0.75mA and it is not sufficient for big motors. The PWM signal from the IC drives the IRF540 and IRF540 drives the motor accordingly.IRF540 can easily handle currents up to 20A. The output current capability of the IC is well sufficient for driving the IRF540.

]]> http://www.circuitstoday.com/speed-control-for-pcb-drill#comment-4907 probir Wed, 13 Jan 2010 06:11:03 +0000 http://www.circuitstoday.com/?p=2836#comment-4907 the maximum current the IC LM 3578 can handle is 0.75A will this be sufficient to drive big motors or this current is just required for driving the power mosfet IRF540. the maximum current the IC LM 3578 can handle is 0.75A
will this be sufficient to drive big motors or this current is just required for driving the power mosfet IRF540.

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