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參數(shù)資料
| 型號(hào)： | NCV33035DWR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Brushless DC Motor Controller |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.1 A, PDSO24 |
| 封裝： | PLASTIC, SOP-24 |
| 文件頁數(shù)： | 17/28頁 |
| 文件大?。?/td> | 430K |
| 代理商： | NCV33035DWR2 |
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MC33035, NCV33035
http://onsemi.com
17
SYSTEM APPLICATIONS
Three Phase Motor Commutation
The three phase application shown in Figure 36 is a
fullfeatured open loop motor controller with full wave, six
step drive. The upper power switch transistors are
Darlingtons while the lower devices are power MOSFETs.
Each of these devices contains an internal parasitic catch
diode that is used to return the stator inductive energy back
to the power supply. The outputs are capable of driving a
delta or wye connected stator, and a grounded neutral wye
if split supplies are used. At any given rotor position, only
one top and one bottom power switch (of different totem
poles) is enabled. This configuration switches both ends of
the stator winding from supply to ground which causes the
current flow to be bidirectional or full wave. A leading edge
spike is usually present on the current waveform and can
cause a currentlimit instability. The spike can be eliminated
by adding an RC filter in series with the Current Sense Input.
Using a low inductance type resistor for R
S
will also aid in
spike reduction. Care must be taken in the selection of the
bottom power switch transistors so that the current during
braking does not exceed the device rating. During braking,
the peak current generated is limited only by the series
resistance of the conducting bottom switch and winding.
VM
Rswitch
Ipeak
EMF
Rwinding
If the motor is running at maximum speed with no load, the
generated back EMF can be as high as the supply voltage,
and at the onset of braking, the peak current may approach
twice the motor stall current. Figure 37 shows the
commutation waveforms over two electrical cycles. The
first cycle (0
°
to 360
°
) depicts motor operation at full speed
while the second cycle (360
°
to 720
°
) shows a reduced speed
with about 50% pulse width modulation. The current
waveforms reflect a constant torque load and are shown
synchronous to the commutation frequency for clarity.
Figure 36. Three Phase, Six Step, Full Wave Motor Controller
R
S
R
C
Q
5
Q
6
Q
4
V
M
S
Motor
A
Q
3
S
C
B
Q
1
Q
2
Enable
Q
S
C
T
R
R
T
Oscillator
Error Amp
PWM
Thermal
Shutdown
Reference
Regulator
Lockout
Undervoltage
V
M
Fwd/Rev
Q
R
S
Faster
Speed
Set
Rotor
Position
Decoder
60
°
/120
°
Brake
4
8
3
17
22
7
6
5
18
13
11
12
10
24
20
2
1
21
14
9
19
15
Fault
Ind.
Gnd
16
23
25
μ
A
I
Limit
N
N
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相關(guān)代理商/技術(shù)參數(shù) |
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| NCV33035DWR2G | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DC Brushless 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 |
| NCV33035DWR2G-CUT TAPE | 制造商:ON 功能描述:MC Series 40 V Surface Mount Brushless DC Motor Controller - SOIC-24L |
| NCV33039 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Closed Loop Brushless Motor Adapter |
| NCV33039DR2 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Brushless Closed 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 |
| NCV33039DR2G | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Brushless Closed Loop Motor Adaptor 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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