Re-Inventing The Wheel-Part1-Clemente_Figuera-THE INFINITE ENERGY MACHINE

[tagor]

I am looking for a dual phase smooth change stepper motor drivers. These drivers can generate two sinusoidal voltages with 90 degrees out of phase. IT IS PERFECT!!!

Thanks a lot!

yes i am using afmotor libraries

https://github.com/adafruit/Adafruit-Motor-Shield-library


and this

http://207.58.139.247/products/81

[wings]

like this?

http://www.ebay.com/itm/Cnc-1-7A-12-36VDC-128Micostep-Bipolar-CNC-digital-Wantai-stepper-motor-driver-/170829137223?pt=LH_DefaultDomain_0&hash=item27c635c547

[gadgetmall]

this one is more to my budget 3 dollars with led indicators for the the 4 outputs and a free stepper ...http://www.ebay.com/itm/DC-5V-Stepper-Step-Motor-ULN2003-Drive-Driver-Test-Module-Board-5-Wire-4-Phase-/170922204635?_trksid=p2047675.m2109&_trkparms=aid%3D555003%26algo%3DPW.CAT%26ao%3D1%26asc%3D142%26meid%3D3267539110322744953%26pid%3D100010%26prg%3D1076%26rk%3D2%26sd%3D170829137223%26

[conradelektro]

I think I found a very good IC for driving two coils with any current trace imaginable: DRV8834 from TI

http://uk.farnell.com/texas-instruments/drv8834pwp/driver-motor-dual-h-bridge-24htssop/dp/2115234?in_merch=New%20Products

One needs a microprocessor with at least two Digital/Analogue converters (Pins) and 6 I/O Pins.

An other drawback is the package (very small, pins close together, a pain to solder by hand)

See page 20 Fig. 12 in the data sheet (High-Resolution Microstepping Using a Microcontroller to Modulate VREF Signals)

The price is very low, less than 5 Euro.

Drive capability: 11.8 Volt, 1.5 Ampere (logic and D/A 3.6 Volt), very good for the TI LaunchPad MSP430

Of course, the program will be a bit evolved (D/A in combination with 6 pins in coordination), nothing for the faint hearted microprocessor programmer.

If some one knows how to solder such a small IC by hand, any suggestions are appreciated.

Greetings, Conrad

[rensseak]

I think I found a very good IC for driving two coils with any current trace imaginable: DRV8834 from TI

http://uk.farnell.com/texas-instruments/drv8834pwp/driver-motor-dual-h-bridge-24htssop/dp/2115234?in_merch=New%20Products

One needs a microprocessor with at least two Digital/Analogue converters (Pins) and 6 I/O Pins.

An other drawback is the package (very small, pins close together, a pain to solder by hand)

See page 20 Fig. 12 in the data sheet (High-Resolution Microstepping Using a Microcontroller to Modulate VREF Signals)

The price is very low, less than 5 Euro.

Drive capability: 11.8 Volt, 1.5 Ampere (logic and D/A 3.6 Volt), very good for the TI LaunchPad MSP430

Of course, the program will be a bit evolved (D/A in combination with 6 pins in coordination), nothing for the faint hearted microprocessor programmer.

If some one knows how to solder such a small IC by hand, any suggestions are appreciated.

Greetings, Conrad

Wie wäre es mit Ultraschalllöten? http://www.sonicsolder.com/
Wenn Du das mit der Hand löten willst, viel Spaß dabei. Primär gehts wohl darum, dass der Chip nicht durch Hitzeeinwirkung vom Löten beschädigt wird.
Ansonsten würde ich erstmal alle Füßchen von unten mit einer möglichst dünnen Schicht Lötzinn versehen. Anschließend auf die Platine legen ausrichten fixieren und nur noch mal von oben ohne Lötzinn festlöten. Bei allen Lötprozessen für ausreichend Kühlung des Chips sorgen. Hope you are german.