UCD3138064ARGCR.A datasheet(51/84 Pages) TI2

Nome de Peças	UCD3138064ARGCR.A

Descrição Electrónicos	UCD3138064A Highly Integrated Digital Controller for Isolated Power

PDF	84 Pages

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Fabricante Electrônico	TI2 [Texas Instruments]

Página de início	https://www.ti.com

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Phase Shift

Phase Trigger = Phase Trigger Register value or Filter Duty

DPWM0 Start of Period

Period Counter

DPWM0 Start of Period

DPWM1 Start of Period

Period Counter

DPWM1 Start of Period

UCD3138064A

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SLUSCA5B – DECEMBER 2015 – REVISED JANUARY 2017

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Detailed Description

Cycle Adjust B has no effect in Normal Mode.

6.5.1.2

Phase Shifting

In most modes, it is possible to synchronize multiple DPWM modules using the phase shift signal. The

phase shift signal has two possible sources. It can come from the Phase Trigger Register. This provides a

fixed value, which is useful for an application like interleaved PFC.

The phase shift value can also come from the filter output. In this case, the changes in the filter output

causes changes in the phase relationship of two DPWM modules. This is useful for phase shifted full

bridge topologies.

Figure 6-27 shows the mechanism of phase shift:

Figure 6-27. Phase Shifting

UCD3138064ARGCR.A Folha de dados(PDF) 51 Page - Texas Instruments