基本的步進(jìn)電機(jī)控制電路介紹[外文翻譯]

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緒論
本文講解的是基本的也是最終的步進(jìn)電機(jī)的驅(qū)動(dòng)電路。 這個(gè)電路集中討論一個(gè)問(wèn)題, 給電機(jī)的各相繞組輪流通電, 并且控制它給各相繞組的通電次序。 這個(gè)驅(qū)動(dòng)電路直接接到電機(jī)繞組和電源上, 并且由一個(gè)數(shù)字系統(tǒng)控制它的導(dǎo)通與關(guān)閉。
本文包括所有類型的電機(jī),基本的電路必須能夠控制一個(gè)不定相數(shù)的電機(jī), 對(duì)H－橋電路需要控制一個(gè)兩相永磁電機(jī)。下面用一個(gè)實(shí)際例子說(shuō)明各相繞組的驅(qū)動(dòng)電路, 但這些例子沒(méi)有打算作為商業(yè)中控制電路的使用說(shuō)明, 在這里提供的信息也沒(méi)有打算去替代那些制造商提供的一些關(guān)于步進(jìn)電機(jī)的數(shù)據(jù)表。
本文只包括最基本的步進(jìn)電機(jī)各相繞組的控制電路。并且我們假設(shè)， 所有這些電路為電機(jī)電源提供的驅(qū)動(dòng)電壓沒(méi)有大于電機(jī)的額定電壓。下個(gè)部分, 基于當(dāng)前的有限的驅(qū)動(dòng)電路, 列舉一些實(shí)用的高性能驅(qū)動(dòng)電路 ......



Basic Stepping Motor Control Circuits
Introduction
This section of the stepper tutorial deals with the basic final stage drive circuitry for stepping motors. This circuitry is centered on a single issue, switching the current in each motor winding on and off, and controlling its direction. The circuitry discussed in this section is connected directly to the motor windings and the motor power supply, and this circuitry is controlled by a digital system that determines when the switches are turned on or off.
This section covers all types of motors, from the elementary circuitry needed to control a variable reluctance motor, to the H-bridge circuitry needed to control a bipolar permanent magnet motor. Each class of drive circuit is illustrated with practical examples, but these examples are not intended as an exhaustive catalog of the commercially available control circuits, nor is the information given here intended to substitute for the information found on the manufacturer's component data sheets for the parts mentioned.
This section only covers the most elementary control circuitry for each class of motor. All of these circuits assume that the motor power supply provides a drive voltage no greater than the motor's rated voltage, and this significantly limits motor performance. The next section, on current limited drive circuitry, covers practical high-performance drive circuits ......