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The Using of L297 in Stepper Motor Driving Applications
Here we provide you with an application note article contain information about the L297 Stepper Motor Controller 
which is typically intended for using with L298N or L293E bridge driver in stepper motor driving applications. You will be described with the operation of the L297 integration control circuitry and also figure out how it is used.
You will be taken into sections discuss the advantages of L297 + driver combination, the used with an L298N or L293E bridge driver, stepper motor basic types (unipolar, bipolar and variable reluctance), bipolar permanent magnet stepper motor, drive sequences for a two phase bipolar stepper motor, generating suitable phase sequences for half step, one-phase-on full step and two-phase-on full step operation.
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