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Motore di ricerca datesheet componenti elettronici |
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AN2533 Scheda tecnica(PDF) 1 Page - Motorola, Inc |
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AN2533 Scheda tecnica(HTML) 1 Page - Motorola, Inc |
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1 / 24 page  © Motorola, Inc., 2003 AN2533/D Rev. 0, 5/2003 Standard Space Vector Modulation – 3 outputs version – XOR version TPU Function Set (svmStd3Xor) Application Note By Milan Brejl, Ph.D. Functional Overview Standard Space Vector Modulation – 3 outputs version – XOR version (svmStd3Xor) is a version of the Standard Space Vector Modulation – 3 output version (svmStd3) 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 svmStd3. A disadvantage is that the number of assigned TPU channels is doubled. Figure 1. Functionality of XOR version – illustration The function set consists of 5 TPU functions: • Standard Space Vector Modulation – 3 outputs version – XOR version – R channels (svmStd3Xor_R) • Standard Space Vector Modulation – 3 outputs version – XOR version – T channels (svmStd3Xor_T) A1 XOR XOR A2 B1 XOR XOR B2 C1 XOR XOR C2 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com www.DataSheet4U.com www.DataSheet4U.com |
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