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參數(shù)資料
| 型號(hào)： | TB6582FG |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.002 A, PQFP52 |
| 封裝： | 10 X 10 MM, 0.65 MM PITCH, ROHS COMPLIANT, PLASTIC, QFP-52 |
| 文件頁數(shù)： | 6/28頁 |
| 文件大?。?/td> | 279K |
| 代理商： | TB6582FG |
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TB6582FG
2007-10-18
Design Specifications
14
7.
Induced Voltage Detection
(Sine-wave generation)
The induced voltages of each phase are detected by applying an analog calculation to the current signal
generated in section 6 and the voltage signal detected at the motor.
Note: Under normal operation, the FRCDRV pin voltage must be 2.5 V, or the pin
must be left open.
(Square-wave generation)
A square wave for startup-operation control performs a control function by detecting the 60
° commutation
time using the induced voltage that is generated while the motor is not commutating.
The square-wave drive operates until the phase-current frequency reaches 6 Hz (90 rpm for an 8-pole
motor).
Vvo
Vu
Vv
Current
detection
Induced voltage
detection
PWM
IPD
Vn
Vu
Vuo
R
+
Eu
Eu
+
Vn
Vv
Vvo
R
+
Ev
Ev
+
Vn
Vw
Vwo
R
+
Ew
Ew
+
Voltage
phase
Voltage
forming
Vw
Voltage forming
Vv
Vuo
Vu
Vwo
Vw
Iu
Iv
Iw
Vn
Phase
control
Voltage instruction
(current limit)
dt
dIu
L
dt
dIu
L
dt
dIu
L
IUin
Cu
1
52
51
IUo
C2
R7
C1
R6
To complete the phase voltage equation, values of external C1, R6 and R7 are
determined experimentally.
It can be achieved by setting the FRCDRV pin High (5 V) or Low (0 V).
The recommended capacitor value for C2 is the range of about 0.01
F to 0.047
F. However, it should be adjusted according to noise conditions.
When FRCDRV goes Low, the current frequency signal of 0.5 Hz is generated
at the drive output.
At this time, a resistor value of R6 must be determined so as to keep the Cu
voltage constant at 2.5 V.
When FRCDRV goes High, the current frequency signal of 30 Hz is generated
at the drive output.
At this time, values of a capacitor C1 and a resistor R7 must be determined so
as to keep the Cu voltage constant at 2.5 V.
Phase voltage equation
Eu
= (Vu Vn) L × dIu/dt – R × Iu
Motor equivalent circuit
Vn
Eu
RIu
LdIu/d
Vu
<Determining the time constant of a motor >
Preliminary
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|---|---|
| TB6582FG(ES) | 制造商:Toshiba America Electronic Components 功能描述: |
| TB6582FG(O,EL) | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Brushless DC Motor Controller 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 |
| TB6582FG(OEL) | 制造商:Toshiba America Electronic Components 功能描述:BRUSHLESS DC MOTOR DRIVER 18V 0.2MA |
| TB6584AFNG(O,C8,EL | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Brushless Motor DRVR 3-Phase 1A 45V 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 |
| TB6584AFNG(O,EL) | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 3-Phase Brushless Driver IC 45V 1.8A 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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