From 99e7e2ea76660e3f49ff12016ad0d5611b363c22 Mon Sep 17 00:00:00 2001 From: HomeSpan Date: Wed, 28 Jun 2023 20:50:15 -0500 Subject: [PATCH] Update StepperModes.md --- docs/StepperModes.md | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/docs/StepperModes.md b/docs/StepperModes.md index ae15ff4..4c3c980 100644 --- a/docs/StepperModes.md +++ b/docs/StepperModes.md @@ -4,18 +4,17 @@ A typical stepper motor has two sets of coils, *A* and *B*. Applying a current #### FULL_STEP_TWO_PHASE -In this mode, a constant current is applied to both coils *A* and *B*. The motor is then stepped by alternatively flipping the direction of the current flow (from "positive" to "negative") in the *A* coil, then the *B* coil, as follows: +In this mode, a constant current is applied to both coils *A* and *B*. The motor is then stepped by alternatively flipping the direction of the current flow (from "positive" to "negative") in the *A* coil, then the *B* coil, as follows: image This is called a two-phase mode becuase both coils (phases) of the motor are powered at the same time. Note that though the pattern repeats after four steps, it is not symmetrical - running the pattern from left to right causes the motor to rotate in one direction, whereas running the pattern from right to left will cause it to rotate in the opposite direction. Many stepper motors are constructed to have 200 full steps, which means you need to repeat the above pattern 25 times to cause the motor to complete a single revolution. One advantage of the **FULL_STEP_TWO_PHASE** mode is that it is easy to implement since you only need a single digital signal to control the direction - - - + image
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