http://www.elecfree.com/electronic/stepper-motor-driver-by-74194/ Wed, 17 Mar 2010 04:55:38 +0000 http://wordpress.org/?v=2.6.5 http://www.elecfree.com/electronic/stepper-motor-driver-by-74194/#comment-1782 Stepper Motor Driver by 74194 | Wiparat Circuit Electronics Mon, 10 Aug 2009 04:05:19 +0000 http://www.elecfree.com/electronic/stepper-motor-driver-by-74194/#comment-1782 [...] Probably the simplest, reversible drive circuit is the H-Bridge. Some BEAMbots use H-bridge motor drivers; many more use an H-bridge variant of some sort. Here’s a simple conceptual schematic: Image Based on the SN74LS194 - Bidirectional Universal Shift Register the circuit is designed to drive UNIPOLAR type stepper motors and provides only basic control functions - Forward, Reverse, Stop and Speed adjustment. [...] Link [...] [...] Probably the simplest, reversible drive circuit is the H-Bridge. Some BEAMbots use H-bridge motor drivers; many more use an H-bridge variant of some sort. Here’s a simple conceptual schematic: Image Based on the SN74LS194 - Bidirectional Universal Shift Register the circuit is designed to drive UNIPOLAR type stepper motors and provides only basic control functions - Forward, Reverse, Stop and Speed adjustment. [...] Link [...]

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