I've used http://www.expresspcb.com/ExpressPCBHtm/Download.htm For my projects, you can get a online qoute for custom boards. If you can design within their...
Hi, I used this printed circuit board from radio shack for my prototype projects. Check it out online to see if this is what are your looking. You can order it...
I'll second the expressPCB option. Their $51 mini-board service works for me. Free schematic and layout software, online board ordering and 2 day delivery is...
... I'll put in a vote for Advanced Circuits: http://4pcb.com. They're more expensive than expressPCB, but they let you use your own design software. This is...
... I have used * http://www.expresspcb.com/ * and found there work and service good. I was designing in house test fixtures. For me it worked well, I needed...
Do you have a link the actual page on the Radio Shack website? I think I can imagine the boards you are referring to but it would be nice to be able to see...
Depending what you were looking for in prototype board, you have some options. Custom designing your own is an option, but for only a quantity of a few can be...
James, I imagine you have your boards by now, but I still want to plug ExpressPCB. If I need only one board and I'm in a big rush, I'll use the ExpressPCB...
Hi. I am a newbie in the fascinating world of BasicX. I have a BX-24 and had started a project of using BX-24 to run an H-bridge motor controller. FYI, I am a...
Hi, I checked the TC4469 your are right the circuit is energizing the two left mosfet causing a short to ground. I think the only you have to do switched pins...
Hi HM Wong, I haven't had direct experience with the TC4469 driving a H-Bridge but my take on the use of 2 N-Channel FETs and 2 P-Channel FETs in the bridge...
Thank you for both, eserdhal@ and rosarite@... for the quick reply. Will check over the logics as well as the polarities of all the components. Well, kinda...
HM Wong, Just curious - how much current do you need for your motors? I'm very fond of the LMD18200 H-Bridge, which is good for 3A continous and 6A peak....
Hi, I double checked and I was wrong. The circuit is OKAY. I overlooked that the top mosfets? are P-channel and the bottom ones are N-channels. Sorry for the...
Don, I did a search on the LMD18200, it's great and seems as what you commented, low-parts-count. I would say my running spec falls within the capability of...
Hi there everyone. There is a saying, "Knowledge without thinking is useless. Thinking without knowledge is dangerous". Well, if my memory serves me right and...
Hi, Hey your are not along. Most of us learned in the way your are going through. Learning electronics is not so easy as? the people think. Sometime you have...
All, I think if you don't smoke some cheap parts in the begining you will probably smoke some expensive parts later. I have built my own H-bridge and after...
Hi, First and foremost, thank you for sticking up. Anyway, as for the schematic diagram, it can be found in the BasicX's file section or you can go to ...
Hi there Harry. Thanks for the advice and appreciate that. That's a wise thought you got there. Glad you can share your view on that. The L298N seems similar...
Hi, Regarding the .gif schematic, there are serious errors in the symbols and part number labeling of the power MOSFETs. Please refer to the IR spec sheets and...
HM, As I said before, I use the LMD18200 for these circuits, so I'm not very familiar with the discrete H-bridge circuits. However, I believe that your...
Hi there, sorry for that. Clean up the diagram abit, hope this version will clear all the confusion. Again as before the link is http://f1.grp.yahoofs.com/v1/ ...
HM, If your schematic is correct, your connections to the TC4469 give the logic in your truth tables, which I think is wrong. I think what you want is: TC4469...
Hi Don. The way you put it, you are correct. Seems i made a silly mistake then. Realizing this flaw, came another question. I'm running with 24V, wouldn't at ...
... HM, I hadn't noticed that. Yes, the P-channel MOSFETs would always be on. To run on 24V, you will need to do some level shifting in order to turn the...
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