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NX2415 データシートの表示(PDF) - Microsemi Corporation
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NX2415
TWO PHASE SYNCHRONOUS PWM CONTROLLER WITH INTEGRATED FET DRIVER AND DIFFERENTIAL CURRENT SENSE
Microsemi Corporation
NX2415 Datasheet PDF : 21 Pages
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Current Loop Compensator Design
Master
channel
Compensation
D(s)
1
Vosc
Power stage
d
Vin
iL
s*L+Req
Current Sensing
Amplifier Gain
s*L+DCR
Rs*Cs*s+1
Inductor Current
sense
Figure 6 - Current loop control diagram
NX2415
V
IN
master channel
L
DCR
Vbias
Ramp for
slave channel
PWM control
logic
and driver
Vbias
Rs
Cs
Rs
V
OUT
V
IN
Slave channel 1
L
DCR
Rs
Cs
Rs
Slave channel control
Slave channel control
Icomp1 Rcc
C1
C2
Slave channel
Figure 7 - Function diagram of current loop
Rev.4.8
13
05/06/08
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