Characteristic curves, Car1212dc series dc-dc converter, Data sheet – GE Industrial Solutions CAR1212DC series User Manual

Page 7: Input: -36v, Output: 12v, Or 5 v

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GE

Data Sheet

CAR1212DC series DC-DC converter

Input: -36V

D C

to -75V

DC

; Output: 12V

DC

@ 1200W; 3.3V

DC

or 5 V

DC

@ 1A

October 21, 2013

©2013 General Electric Company. All rights reserved.

Page 7

Characteristic Curves

The following figures provide typical characteristics for the CAR1212DC converter at 25

o

C

EF

FI

CIE

NCY

, η

(

%

)

V

IN

(V

) (

50

V/d

iv

),

V

O

(V

) (

5V/

di

v)

V

3.3

(V

) (

2V/

di

v)

, D

COK

(2

V/

div)

Output current, A

TIME, t (50ms/div)

Figure 1. Converter Efficiency versus Output Current.

Figure 2. Input start up (Vin: -48V

DC

, full load).

V

O

N

(V

) (

5V

/d

iv

), V

O

(V

) (

5V

/d

iv

)

V

3.3

(V)

(2

V/

di

v)

, D

COK

(2

V/

div)

O

U

TP

U

T V

O

LTA

G

E

V

O

(V

) (

5V/

di

v)

TIME, t (2ms/div)

TIME, t (5ms/div)

Figure 3. Start-up Using Remote On/Off

(Vin: -48V

DC

, full load)

Figure 4. 12V start-up (Vin: -48V

DC

, full load)

O

U

TP

U

T V

O

LTA

G

E

V

O

(V

) (

50

m

V/

div)

V

ON

(V

) (

5V

/d

iv

), V

O

(V

) (

5V

/d

iv

)

V

3.3

(V)

(2

V/

di

v)

, D

COK

(2

V/

div)

TIME, t (5µs/div)

TIME, t (10ms /div)

Figure 5. 12V output ripple and noise (Vin: -48V

DC

, full load).

Figure 6. Turn-OFF via Remote ON/OFF

(Vin: -48V

DC

, full load)

70

75

80

85

90

95

10

30

50

70

90

110

Input

3.3Vsb

12V

DCOK

12V

DCOK

3.3Vsb

Remote ON/OFF

Remote ON/OFF

3.3Vsb

DCOK

12V

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