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參數資料
| 型號： | LB11852FV |
| 元件分類： | 運動控制電子 |
| 英文描述： | AC MOTOR CONTROLLER, 0.02 A, PDSO20 |
| 封裝： | 0.225 INCH, SSOP-20 |
| 文件頁數： | 12/12頁 |
| 文件大?。?/td> | 142K |
| 代理商： | LB11852FV |
LB11852FV
No.A1112-9/12
2. Supplementary description of operations
By inputting the duty pulses, a feedback loop is formed inside the LB11852 IC to establish the FG period (rotational
speed of the motor) that corresponds to the control voltage of the pulses.
The operation inside the IC is as flows. pulse signals are created from the edges of the FG signals as shown in the
figure below, and using these signals as a reference, waveforms with a pulse width determined by the CR time constant
are generated using a one-shot multivibrator. These pulse waveforms are then integrated to control the duty ratio of the
pre-driver output as the control voltage.
By changing the pulse width as determined by the CR time constant, the VCTL versus rotational speed slope can be
adjusted as shown in the speed control diagram in the previous section.
However, since pulses that are determined by the CR time constant are used, the CR variations are output as-is as the
speed control error.
CTL
Signal
CTL
FG
LB11852
Closed
Feed-Back
Loop
CONTROL
SIGNAL
Speed
control block
Pre-driver
block
One-shot
multivibrator
output
RC pin
Edge pulse
FG
TRC (sec) = 1.15RC
Slope determined
by CR time
constant
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| LB11948T | STEPPER MOTOR CONTROLLER, 0.5 A, PDSO30 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LB11852FV-MPB-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 |
| LB11852FV-MPB-H | 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 |
| LB11852FV-TLM-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 |
| LB11852FV-TLM-H | 功能描述:馬達/運動/點火控制器和驅動器 FAN MOTOR 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 |
| LB11852RV-MPB-H | 制造商:ON Semiconductor 功能描述:SINGLE PHASE MOTOR DRIVER - Ammo Pack |
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