Datasheet > AN2531/D

AN2531/D

更新时间： 2024-11-29 22:13:15

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		石英晶振
页数	文件大小	规格书
28页	466K
描述
Standard Space Vector Modulation with Dead-Time Correction ?XOR version TPU Function Set

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AN2531/D 数据手册

Freescale Semiconductor, Inc.

Application Note

AN2531/D

Rev. 0, 5/2003

Standard Space Vector

Modulation with Dead-Time

Correction – XOR version

TPU Function Set

(svmStdDtXor)

By Milan Brejl, Ph.D.

Functional Overview

The Standard Space Vector Modulation with Dead-Time Correction – XOR

version (svmStdDtXor) is a version of the Standard Space Vector Modulation

with Dead-Time Correction (svmStdDt) function that uses two TPU channels to

generate one PWM output channel. The TPU channel outputs are connected

to an XOR gate whos output is the required PWM signal. See Figure 1. An

advantage of this solution is the full range 0% to 100% of PWM duty-cycle

ratios. There is no MPW (minimum pulse width) parameter to limit the edge

duty-cycle ratios in this version, unlike in the svmStdDt. A disadvantage is that

the number of assigned TPU channels is doubled.

AT1

AT2

Phase A - top

XOR

AB1

AB2

Phase A - bottom

BT1

BT2

Phase B - top

XOR

BB1

BB2

Phase B - bottom

CT1

CT2

Phase C - top

XOR

CB1

CB2

XOR

Phase C - bottom

Figure 1. Functionality of XOR version – illustration

For More Information On This Product,

Go to: www.freescale.com

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