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參數(shù)資料
| 型號： | KA3081D |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 3-Phase BLDC Motor Driver(三相無刷直流電機(jī)驅(qū)動(dòng)器) |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO20 |
| 封裝： | 0.300 INCH, SOP-20 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 215K |
| 代理商： | KA3081D |
FAN8402D (KA3081D)
9
Application Information
1. SYSTEM BLOCK DIAGRAM
The figure 1 shows concept of soft switching for 3-phase output with a hall sensor.
Figure 1.
Peak detector
Generates clock pulses at the peak points of the hall signal.
Stair wave generator
Generates 3 stair wave signals 120 degree apart from the clock pulses.
3-phase motor drive circuit
Controls output currents to operate 3-phase motor using the vol
tage difference between the 3 stair wave signals and FG hall signal.
2. STRUCTURE OF BLDC MOTOR
Consists of main and sub magnets. For every main magnet there are 3 submagnets as shown in Fig 2.
Sub-magnet takes hall signal and goes through 6 gradual filtering steps purifying in order to operate 3-phase motor with one
hall sensor.
Figure 2.
Peak
Detector
Stair Wave
Generator
3-phase hall
Motor drive
Circuit
Hall
Signal
U_output
V_output
3-phase
Motor
W_output
U_Stair
V_Stair
Common
Signal
Main-magnet
Sub-magnet
Hall output waveform (Sub-magnet)
N
S
N
S
N
S
N
S
N
S
N
S
N
S
N
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KA3082N | Bi-directional DC Motor Driver |
| KA3082 | Bi-Directional DC Motor Driver |
| KA3082B | Bi-Directional DC Motor Driver |
| KA3086D | 2-Phase BLDC Motor Driver(兩相無刷直流電機(jī)驅(qū)動(dòng)器) |
| KA3100D | Stepping Motor Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KA3082 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Bi-Directional DC Motor Driver |
| KA3082B | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DC 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| KA3082N | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Bi-directional DC Motor Driver |
| KA3084 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Bi-Directional DC Motor Driver |
| KA3084D | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BLDC Motor Driver 2-Phase 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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