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UCD3138ARMHT датащи(PDF) 60 Page - Texas Instruments

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номер детали UCD3138ARMHT
подробное описание детали  Highly Integrated Digital Controller for Isolated Power
PDF  83 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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UCD3138ARMHT датащи(HTML) 60 Page - Texas Instruments

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2 B – QB2
( EDGEGEN )
2 A – QT 2
( EDGEGEN )
0B – QSYN 2,4
1 B –
QSYN 1,3
X3
X2
DPWM 2 AF
DPWM 2 BF
DPWM 3 AF
DPWM 3 BF
Current
X1
Peak Level
3 A – QB1
( DPWM 1 C)
3 B – QT1
( DPWM 2 C)
Period Start
Period End
1A
0A
Chopping point
Chopping point
Y3
Y2
Y 1
UCD3138A
SLUSC66B – MARCH 2015 – REVISED MAY 2015
www.ti.com
X 1 , X 2 , X 3 and Y 1 , Y 2 , Y 3 are sets of moving edges. All other edges are fixed
Figure 7-6. Dynamic Signals to Bridge
The Edge Generator is configured with these statements:
Dpwm2Regs.DPWMEDGEGEN.bit.A_ON_EDGE = 2;
Dpwm2Regs.DPWMEDGEGEN.bit.A_OFF_EDGE = 5;
Dpwm2Regs.DPWMEDGEGEN.bit.B_ON_EDGE = 6;
Dpwm2Regs.DPWMEDGEGEN.bit.B_OFF_EDGE = 1;
Dpwm2Regs.DPWMCTRL0.bit.PWM_A_INTRA_MUX = 1; // EDGEGEN-A out the A output
Dpwm2Regs.DPWMCTRL0.bit.PWM_B_INTRA_MUX = 1; // EDGEGEN-B out the B output
Dpwm2Regs.DPWMEDGEGEN.bit.EDGE_EN = 1;
The EDGE_EN bits are set for all 4 DPWMs. This is done to ensure that all signals have the same timing
delay through the DPWM.
The finial 6 gate signals are shown in Figure 7-7.
60
Application, Implementation, and Layout
Copyright © 2015, Texas Instruments Incorporated
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Product Folder Links: UCD3138A



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