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Intel Entry Redundant Power 2U ERP2U User Manual

Page 23

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SSI

ERP2U Power Supply Design Guide, V1.0

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Figure 3: Turn On/Off Timing

AC Input

Vout

PWOK

5VSB

PSON#

T

sb_on_delay

T

AC_on_delay

T

pwok_on

T

vout_holdup

T

pwok_holdup

T

pson_on_delay

T

sb_on_delay

T

pwok_on

T

pwok_off

T

pwok_off

T

pson_pwok

T

pwok_low

T

sb_vout

AC turn on/off cycle

PSON turn on/off cycle

Tsb_holdup