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Stepping motor driver and random subdivision algorithm therefor

A stepper motor and driver technology, applied in the direction of motor generator control, electrical components, control systems, etc., can solve problems such as increased workload

Active Publication Date: 2016-08-31
SHENZHEN SPARK AUTOMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a stepper motor driver and its arbitrary subdivision algorithm to solve the problem in the prior art that the driver program or parameters need to be modified when the user requires special subdivision of the motor driver, resulting in increased workload

Method used

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  • Stepping motor driver and random subdivision algorithm therefor
  • Stepping motor driver and random subdivision algorithm therefor
  • Stepping motor driver and random subdivision algorithm therefor

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0045] The embodiment of the present invention provides an arbitrary subdivision algorithm of a stepper motor driver, such as figure 1 As shown, the arbitrary subdivision algorithm includes the following steps:

[0046] Step S101. Obtain the relative phase range according to the subdivision value, and set the pulse equivalent as a constant, wherein the relative phase range is an integer multiple of the pulse equivalent.

[0047] In this step, specifically, the relative...

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Abstract

The invention relates to the technical field of motors, and provides a stepping motor driver and a random subdivision algorithm therefor. The algorithm comprises the following steps: setting a pulse equivalent as a constant, obtaining a phase range according to a subdivision value, wherein the phase range is n times of the pulse equivalent, wherein n is an integer; receiving a pulse signal, and obtaining a relative pulse speed according to the pulse signal and the pulse equivalent; obtaining a current phase value according to the relative pulse speed, wherein the current phase value is m times of the subdivision value, wherein m is an integer; converting the current phase value into a corresponding angle in a phase range of a sine table according to the subdivision value; reading the data of the sine table according to the angle, and outputting a phase current. The method achieves a purpose that the variables will automatically change after a user randomly selects the subdivision, thereby avoiding the later manual operation.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stepper motor driver and an arbitrary subdivision algorithm thereof. Background technique [0002] At present, in the field of stepper motor driver technology, the step angle of the two stepper motors is 1.8°, and the step angle of the three-phase stepper motor is 1.2°. Through the electronic gear function of the stepper motor driver, the step The distance angle is further subdivided into 16 subdivisions such as 1 / 2, 1 / 4 and 1 / 8 (converted into ppr to be 200, 400, 800, etc.). Due to the different needs of users, the existing 16 subdivisions cannot meet the needs of users. For example, users require special subdivisions of 1800ppr and 1700ppr, etc., which require driver manufacturers to do special processing for special subdivisions. Driver programs or parameters need to be modified to increase Reduced the workload of drive manufacturers. To sum up, there is a problem in the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/18
CPCH02P8/18
Inventor 陈占军
Owner SHENZHEN SPARK AUTOMATION TECH CO LTD
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