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參數(shù)資料
| 型號： | STK6713BMK4 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Unipolar Fixed-current Chopper-Type 4-Phase Stepping Motor Driver(單極性固定電流4相位步進式斬波型電機驅動器) |
| 中文描述： | 單極固定電流斬波型4相步進電機驅動器（單極性固定電流4相位步進式斬波型電機驅動器） |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 146K |
| 代理商： | STK6713BMK4 |
The operation for a 4-phase dual-excitation example is described below.
The STK6712BMK4 equivalent circuit is given in Fig. 1. The circuit consists of the phase drivers, the comparator, the
PWM excitation select and the current detect resistance. In Fig. 1 A is input with low, and A with high. When Q1
goes on, the +pin of IC1 (comparator) goes low, making IC1 output
increases as:
V
CC
1 – V
SAT
R
low also. A winding current i
ON
through Q1
i
ON
=
(1 – e
)........................................................................................................... (1)
L: motor winding inductance
R: Sum of winding resistance and current detect resistance
For this reason, pin voltage V
R7
at source resistor R7 increases, and when the V
RO
2 voltages of pin 8 and R
O
2 are equal
output A goes high, and Q1 turns off. The inverse voltage V
TP
is as:
R
O
2
R
O
1 + R
O
2
V
TP
= Vref =
×
V
CC
2.......................................................................................................... (2)
In general stepping motor coils use BIFALAR windings, so the energy stored in L1 is generated by L2, at which time the
current in L2 is i
OFF
. i
OFF
conduction continues until the charges of capacitors C1 and C2 on R3 and R4 pins (E
C
) equal
V
RO2
. When they are equal, output
inverts and becomes low. Motor winding current i
ON
again rises to V
RO2
level.
This motor current on/off (constant current chopping) is repeated. This waveform is illustrated on the next page.
STK6712BMK4 Basic Circuit
S
–
t
R
L
S
No. 4867-4/10
STK6712BMK4
相關PDF資料 |
PDF描述 |
|---|---|
| STK672-010 | 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）) |
| 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) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| STK6713BMK4-C-E | 功能描述:馬達/運動/點火控制器和驅動器 RoHS:否 制造商:STMicroelectronics 產品: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 |
| STK672-040-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: |
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