参数资料
型号: L6271
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: DISK DRIVE MOTOR CONTROLLER, PDSO24
封装: PLASTIC, SO-24
文件页数: 8/10页
文件大小: 72K
代理商: L6271
Voltage Loop-Current Controlled system, and in
every pulse there is a regulated power transfer to
the load.
The resonant LC topology has been chosen in or-
der to limit the voltage slew-rate across the coil
within reasonable values and so, to minimize irra-
diation problems.
The negative converter is a simple charge trans-
fer: it is supplied by the positive high voltage and
it capacitively translates this positive voltage
down to a negative one, obviously to limit irradia-
tion problems also the charge output has a limited
slew-rate; moreover to reduce intermodulation
phoenomenas the charge output is synchronized
with the LC oscillations of the resonant boost.
This negative voltage is (not counting drops on
external rectification diodes) in tracking with the
positive one and so the negative output controller
is not required.
-
+
L
V512
D98IN971A
BACK-UP
OSCILL.
DC-DC
LOGIC
-
+
-
+
-
+
:5
B
200
A
HVP
2.5V
HVP
R
S
HVM
-40V
+40V
V512
Figure 3. DC-DC converter
L6270 - L6271
7/10
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