AN2517 Freescale Semiconductor / Motorola, AN2517 Datasheet - Page 7

• Manufacturer Part Number: AN2517
• Description: 3-Phase Sine Wave Generator with Dead-Time Correction TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

MOTOROLA 3-Phase Sine Wave Generator with Dead-Time Correction TPU Function Set (3SinDt)
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The function cos is calculated using a table of 32 values from the first quadrant
of one cosine wave period. The function parameter is mirrored in the first
quadrant. The function value is obtained by linear interpolation between two the
closest table values.
calculation. The maximum error is 7 in the amplitude range <–32768, 32767>,
that is 0.021%.
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ht
ht
ht
Freescale Semiconductor, Inc.
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C
A
For More Information On This Product,
Figure 3. Cosine function value error
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T
T
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Ampl
Ampl
Ampl
Go to: www.freescale.com
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2
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s
s
s
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C
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Figure 3
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1
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1
angle [deg]
shows the error of the cosine function value
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Detailed Function Description
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AN2517/D
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