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參數(shù)資料
| 型號： | STK672-010 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Unipolar Fixed-Current Chopper (separate excitation) Type 1.7 A Output Current Stepping Motor Driver with Built-in 4-Phase Distribution Controller(單極性固定電流斬波型輸出電流1.7A步進式馬達驅動器（帶內置式4相位分配控制器）) |
| 中文描述： | 單極固定電流斬波（單獨激發(fā)）類型1.7 A輸出電流步進電機驅動器，內置4相分布控制器（單極性固定電流斬波型輸出電流1.7A步進式馬達驅動器（帶內置式4相位分配控制器）） |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 325K |
| 代理商： | STK672-010 |
STK672-010 Operation
<Separate Excitation Chopper Driver Block Operation>
Fig. 1 STK672-010 Driver Block Basic Circuit
Figures 1 and 2 show the driver block basic circuit and the waveforms in the various blocks.
Unlike the earlier STK6710 Series, which adopted MOSFET transistors, the STK672-010 implements a fixed current
drive scheme with separate excitation.
Fig. 2 Waveform Timing Chart
Thus the chopping operation is partially fixed at the oscillator frequency by the latch function.
The STK672-010 repeats the operation of switching the motor current on and off, i.e., fixed current chopping operation,
as described above.
No. 4927-5/17
STK672-010
When the FET is turned on by a high level input
on the A signal in the driver block basic circuit,
the comparator + pin goes low and the comparator
output goes low. The L1 current I
ON
that flows in
the FET at this time is given by the following
formula.
V
CC
1 – Vsat
R
I
ON
=
(1 – e
–
t
)..................... (1)
L: Coil inductance
R: The sum of the coil resistance and Rs
Then, when the Rs voltage becomes equal to
Vref, the FET turns off. At this point the energy
stored in the inductor L1 induces a current in L2
and the current I
OFF
flows. The time that the
current I
OFF
flows is proportional to the off time
set at the oscillator.
R
L
相關PDF資料 |
PDF描述 |
|---|---|
| STK672 | Aluminum Polymer Radial Lead Capacitor; Capacitance: 270uF; Voltage: 16V; Case Size: 8x12 mm; Packaging: Bulk |
| STK672-020 | Unipolar Fixed-Current Chopper(separate excitation)Type 3.0A Output Current Stepping Motor Driver with Built-in 4-Phase Distribution Controller |
| STK672-040 | Microstep Operation-Supported 4-Phase Stepping Motor Driver (Io= 1.5A) |
| STK672-050 | Microstep Operation-Supported 4-Phase Stepping Motor Driver (Io= 3.0A) |
| STK672-080 | Aluminum Polymer Radial Lead Capacitor; Capacitance: 470uF; Voltage: 16V; Case Size: 10x13 mm; Packaging: Bulk |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| STK672-040-E | 功能描述:馬達/運動/點火控制器和驅動器 Unipoler 2PhaseMicro SteppingMotor 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 |
| STK672-040GEVB | 功能描述:電源管理IC開發(fā)工具 EVM FOR STK672-040-E RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| STK672-050 | 制造商:Panasonic Industrial Company 功能描述:IC |
| STK672050E | 制造商:ON Semiconductor 功能描述: |
| STK672-050-E | 功能描述:馬達/運動/點火控制器和驅動器 Unipoler 2PhaseMicro SteppingMotor 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 |
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