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參數(shù)資料
| 型號： | KA3011BDTF |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | 3-Phase BLDC Motor Driver |
| 中文描述： | 2 CHANNEL CD MOTOR DRIVER, PDSO28 |
| 封裝： | 0.375 INCH, HEAT SINK, SSOP-28 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 317K |
| 代理商： | KA3011BDTF |
KA3011BD
10
5. ROTATIONAL DIRECTION DETECTION
The forward and the reverse rotations of the CD are detected by the D-F/F and the truth table is shown above.
The rotational direction of the CD can be explained by the output waveform of the hall sensors. The three outputs of hall
sensors be H1, H2 and H3 respectively.
When the spindle rotates in reverse direction, the hall sensor output waveforms are shown in Fig.(a). The phases order are
in H1
→
H2
→
H3 with a 120
°
C phase difference.
On the other hand, if the spindle rotates in forward rotation, the phase relationship is H3
→
H2
→
H1 as shown in Fig.(b).
The output of the rotational direction detector is low, when the spindle rotates forward, and high in the reverse rotation.
20
+
+
V
CC
DIR
D-F/F
D
Q
CK
H2+
H3+
H3
H2
Rotation
DIR
Forward
Low
Reverse
High
20
( a) Reverse rotation
H1
H2
H3
( b) Forward rotation
H1
H2
H3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KA3016D | SPINDLE MOTOR DRIVER |
| KA3018D2 | 3-CH Motor Driver For CD System(用于CD系統(tǒng)的三通道馬達驅(qū)動器) |
| KA3019D2 | 4-CH Motor Driver For CD System(用于CD系統(tǒng)的四通道馬達驅(qū)動器) |
| KA3020D | 3-Phase BLDC Motor Driver(三相無刷直流電機驅(qū)動器) |
| KA3021D | 4-CH Motor Driver For CD System(用于CD系統(tǒng)的四通道馬達驅(qū)動器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KA3012D | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Driver |
| KA3012D02 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| KA3012D-02 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Driver |
| KA3012D02TF | 功能描述:馬達/運動/點火控制器和驅(qū)動器 BTL Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| KA3012D-02TF | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Driver |
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