Hi guys, I'm building a machine with a servo-motor of --- 6 AMP ---, but the ci sn754410 does not support this current, I wonder if anyone has any idea to...
I had the idea of useing two or 4 solid state relays but I dont know if it would work! mike ... From: adhemar_mendes <adhemar_mendes@...> Subject:...
... Search on DigiKey L298N is $6 and is pretty much the same from the servo controllers standpoint as the SN75xxxx thing. It has two channels that are each...
Hi There is a high current H bridge about half way down on this site that could probably be adapted to work on our Edms but i can't say for sure. The SN754410...
hi, why not use the output from the SN754410 to drive the gate of a appropriate size N MOSFET (one for up - one for down) the out put from the sn754410 is 12...
Adhemar: You can find an "H-Bridge" motor driver circuit elsewhere on the internet. I submitted one to this group, and used it instead of the SN754410 chip...
If N Channel FETs are used on the high side, the gate must be raised above the bus voltage. Try reading some of the application notes from International...
Hi, I am a newcomer to the group and I know this thread is a bit old but thought it a useful reply to mark my existence :-). I too live in the UK and have only...
The Group meets on the third Sunday each month (this month Sunday 18th January, 2009) - at: McDonalds McCafe Corner Canning Highway and Berwick Street Victoria...
Hello staff, I need help from you, because I do not know how calculations of electronic I built the generator and burned two ic's sn754410 because I used the ...
Hi, since several month i'm thinking about a DIY Wire EDM controlled via CNC CNC iss not new to me EDM only by seeing - not done anyway now i'm planning to buy...
Hi Frank, I never heard of Dan Mauch, however in "The Home Shop Machinist" a few years back. Robert Langlois had an EDM design that used a stepper motor...
hi, why do you need a more powerful servo motor? there is NO physical effort (other than the actual moving of the ram) associated with sinker edm. you should...
Hello Cary, I am grateful to have answered me, is that I do not want so much power, the motor pitmann the series already consuming 900 or more than 3 amps...
... Unless you want the experience of building one, I'd buy a nice fat motor controller from the likes of 4QD. These guys have some REALLY meaty motor drives,...
Thanks for responding, Steve My motor is 12 volts, but the peak amparegem can reach 6 amps. Steve, this system will continue with the functionality of the...
... Just treat the error signal driving the H bridge chip as the input to the motor controller. Yes, I know that these are "speed" controllers - your error...
I cant find a source of Polypropylene capacitors at a price I want to pay or with the right values in the UK. I think Aluminium electrolytics will work,...
Go to Boots photographic or a film processors and ask for an armfull of processed disposible cameras that have flash guns, use the electrolytics out of them. ...
I've lurked here for more than a year. I thought read in a similar thread in the past that there was some technical problem with those photoflash capacitors in...
Oh I've got lots of photo-flash capacitors because my son works at Jessups. Its C1 and C2 on "the board" that I have a problem with. By the way, I've...
Here's another for you: "Where the people fear the government, you have tyranny; where the government fears the people, you have liberty." - Thomas Jefferson ...
Hi, I am looking for guides for 0,25mm wire upper and lowerguides. Used are OK if in good condition. Anybody that can offer me a set or two, need pictures...
Under Brians stuff there are a couple of pictures on how I did the plumbing. Brian Fairey. ps where as everyone got too? all the machines are built and...
Brian as I noted in the book the meter is not really needed but it makes the powersupply look more impressive. If properly connected the meter should drop to...
Hi Guys, This is more a question directed towards Cary, although the information might be useful to others too. Anyway Cary in your "Packrat" photos #14 which...
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