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TB6551F Datasheet(PDF) 11 Page - Toshiba Semiconductor

Part # TB6551F
Description  3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TB6551F Datasheet(HTML) 11 Page - Toshiba Semiconductor

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TB6551F
2002-12-24
11
Operation Flow
Note: Output ON time is decreased by the dead time.
(carrier frequency
´ 92% - Td ´ 2)
Sine-wave pattern
(modulation signal)
Triangular wave
(carrier frequency)
Position
detector
Counter
System clock
generator
Phase matching
Positional signal
(Hall IC)
Voltage
instruction
Oscillator
Comparator
Phase
W
Phase V
Phase U
U
X
V
Y
W
Z
Voltage instruction Ve
Driven by sine wave
0.2 V (typ.)
100%
5 V (Vrefout)
0
Voltage instruction Ve
Driven by square wave
0.2 V (typ.)
92%
(Note)
4.6 V


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