参数资料
型号: L6711
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48
封装: 7 X 7 MM, 1 MM HEIGHT, TQFP-48
文件页数: 14/50页
文件大小: 679K
代理商: L6711
Obsolete
Product(s)
- Obsolete
Product(s)
L6711
Current reading and current sharing control loop
21/50
current information of each phase, information about the total current delivered (IDROOP =
IINFO1 +IINFO2 + IINFO3) and the average current for each phase (IAVG = (IINFO1 + IINFO2 +
IINFO3)/3) is taken. IINFOX is then compared to IAVG to give the correction to the PWM output
in order to equalize the current carried by the three phases.
Since Rg is designed considering the OC protection, to allow further flexibility in the system
design, the resistor in series to CSx+ can be split in two resistors as shown in Figure 7.
Figure 7.
Inductor current sense
Design Equations:
R
gRC
()
L
R
L
C
g
------------------
=
R
gRC
()
R
ga
()
+
Rg
=
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