H-Bridges

H-Bridges for Motor Control

The TI754410 Can be configured as either four half bridges or two full h-bridges +

See also:

http://www.ti.com/sc/docs/products/analog/l293d.html Texas Instruments L293DNE can handle up to 600 mA and up to 1200 mA peak. It is easier to use than trying to build the h-bridge using individual transistors. If the motor is going to change directions often, you may want to purchase a heat sink for the chip. The current through the motors increases dramatically when they have to stop and reverse direction, making the chip heat up.
http://search.newark.com/part_detail.phtml?PART%5FID=250&VID=250&10005=06F9523 sold by Newark for about $3.00 a piece. $25.00 minimum
The TI L293DNE can be replaced by using an L293D (500ma) or a TI SN754410 (1000 ma) - augmented with inverters to increase the current handeling capacity for a lot less money.
http://www.ionet.net/~bschwabe/BasicStampII/1-pin.gif here is a neat trick.... uses two bipolar transistors and the TRISTATE ability of your pic.... HI-z = no motion.... LOW= Reverse HI=Forward... and you can PWM the pin....
http://www.scooby.flysaturn.com/cktlib/motordrv/
http://bobblick.com/bob/projects/hbridge Bob Blick has a good inexpensive H-Bridge using common RadioShack parts
But, Wagner Lipnharski says:
Need to be careful with this circuit, not to (accidentally) drive the control lines around 1Vdc... it can blow up the power transistors. For almost the same cost, you can go to the Alegro microchips as the UDN2998W, it is a *dual full bridge* internal protection for current and thermal, and much more, 50V @ 2A. Take a look at:
http://allegromicro.com/sf/2998/index.htm
http://www.bubblesoftonline.com/projects/mdrive.pdf

Archive:

PICList post "Design Challenge - A better H Bridge MK2" +

Comments:

See also:

Questions:

file: /techref/io/hbridge.htm, 3KB, , updated: 2007/10/11 10:34, local time: 2009/11/21 19:24, owner: JMN-EFP-786,

^{38.107.191.101:LOG IN}

©2009 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it!
<A HREF="http://piclist.com/techref/io/hbridge.htm"> H-Bridges</A>

Did you find what you needed?

"No. I'm looking for: "
"No. Take me to the search page."
"No. Take me to the top so I can drill down by catagory"
"No. I'm willing to pay for help, please refer me to a qualified consultant"
"No. But I'm interested. me at when this page is expanded."

Robo-Nuts! Check out http://www.verinet.com/~dlc/ Cool little robo-modules: Whiskers, IR proximity and remote control, Sonar proximity, PWM, 4 Servo serial controller, Compass. Programmed 12C508's $8 but also code, docs, etc...

Peter Todd has released source and sample projects for his artwork, including his 3d wireframe cube renderer for the PIC 18f6520 This includes examples of hardware developed with free software tools such as gEDA/gschem/PCB, SDCC, gputils and picp all on Linux. http://petertodd.ca/art/source-code/