Delta Electronics Delphi Series DNS Manual de usuario descargar pdf (Pagina 10)

DS_DNS10SMD06_03092009

Sequential Start-up

Sequential start-up (Figure 26) is implemented by placing

an On/Off control circuit between Vo

PS1

and the On/Off pin

of PS2.

PS1

Vin

On/Off

PS2

Vin

Simultaneous

Simultaneous tracking (Figure 27) is implemented by

using the TRACK pin. The objective is to minimize the

voltage difference between the power supply outputs

during power up and down.

The simultaneous tracking can be accomplished by

connecting Vo

PS1

to the TRACK pin of PS2. Please note

the voltage apply to TRACK pin needs to always higher

than the Vo

PS2

set point voltage.

TRACK

PS1

PS2

PS1

Vin

On/Off

Ratio-Metric

Ratio–metric (Figure 28) is implemented by placing the

voltage divider on the TRACK pin that comprise R1 and

R2, to create a proportional voltage with Vo

PS1

to the

Track pin of PS2.

For Ratio-Metric applications that need the outputs of

PS1 and PS2 reach the regulation set point at the same

time.

The following equation can be used to calculate the value

of R1 and R2.

The suggested value of R2 is 10kΩ.

PSO

TRACK

PS1

PS2

PS1

Vin

On/Off

The high for positive logic

The low for negative logic

FEATURE DESCRIPTIONS (CON.)

The output voltage tracking feature (Figure 26 to Figure

28) is achieved according to the different external

connections. If the tracking feature is not used, the

TRACK pin of the module can be left unconnected or tied

to Vin.

For proper voltage tracking, input voltage of the tracking

power module must be applied in advance, and the

remote on/off pin has to be in turn-on status. (Negative

logic: Tied to GND or unconnected. Positive logic: Tied to

Vin or unconnected)

Figure 26: Sequential

Figure 27: Simultaneous

Figure 28: Ratio-metric

PS1

PS2

PS1

PS2

PS1

PS2

+△V

1 2 ... 5 6 7 8 9 10 11 12 13 14 15

Comentarios a estos manuales

Sin comentarios

Delta Electronics Delphi Series DNS Manual de usuario Pagina 10

Comentarios a estos manuales

Relacionado con productos y manuales para Fuentes De Alimentación Delta Electronics Delphi Series DNS