參數(shù)資料
型號(hào)： L6258E
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 1.5 A, PDSO36
封裝： ROHS COMPLIANT, SOP-36
文件頁(yè)數(shù)： 10/31頁(yè)
文件大?。?/td> 360K
代理商： L6258E
PWM current control loop
L6258E
18/31
Doc ID 8688 Rev 9
Moreover, having the two references Tri_0 and Tri_180 a triangular shape it is clear that the
transfer function of this block is a linear constant gain without poles and zeros.
3.3
Load attenuation
The load block is composed by the equivalent circuit of the motor winding (resistance and
inductance) plus the sense resistor.
We will considered the effect of the Bemf voltage of the motor in the next chapter.
The input of this block is the PWM voltage of the power amplifier and as output we have the
voltage across the sense resistor produced by the current flowing into the motor winding.
The relation between the two variable is:
so the gain of this block is:
where:
RL = equivalent resistance of the motor winding
RS = sense resistor
Because of the inductance of the motor LL, the load has a pole at the frequency:
ACpw
dB
20
224
1.6
-----------------
log
29.5dB
==
V
sense
V
out
R
L
R
S
+
----------------------
R
S
=
ACload
V
sense
v
out
---------------------
R
S
R
L
R
S
+
----------------------
==
ACload
dB
20
R
S
R
L
R
S
+
----------------------
log
=
Aload
dB
20
0.33
12
0.33
+
------------------------
log
31.4dB
–
==
Fpole
1
2
π
L
R
L
R
S
+
---------------------
-----------------------------------
=
Fpole
1
6.28
12
10
3
–
12
0.33
+
---------------------------
----------------------------------------------
163Hz
==
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6258E_07 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver
L6258EA 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver
L6258EP 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver
L6258EP_07 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver
L6258EX 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 1.5A Stepper Motor 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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