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14 of 36 – Gilderfluke&Co BR-MultiBrick32 User Manual

Page 20

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channel. Doing this won’t cause any damage, but can reduce
the protection for the outputs that the fuses normally provide.

The current Output Capacity of each output is as shown in

the following chart:

400ma.

600ma.

500ma.

300ma.

200ma.

100ma.

2

3

4

5

8

7

6

Output Duty Cycle

Allowable Peak Collector Current @

70ºC

Peak Collector Current as a function

of Output Duty Cycle

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Number of outputs

conducting

simultaneously

Since it is unusual to have more than 50% of the outputs on

at any one time, you can usually assume the system has a 250
ma output current capacity. If you are going to be turning on lots
of heavy loads at the same time, you should derate this to 150
ma.. This is sufficient to drive the majority of loads which will be di-
rectly connected to the outputs of the animation system. If addi-
tional current capacity is needed, or if you need to drive higher
voltage loads, you can connect relays as needed to the outputs
of the animation system. Coincidentally, boards for doing this are
available from Gilderfluke & Company. These include:
DPDT relay board: A set of eight electromechanical relays with

double pole/double throw contacts rated at 5 amps each.

Reed relay board: A set of eight small electromechanical relays

with normally open contacts rated at 150 ma each.

I/O module: A set of eight small solid state relays with normally

open contacts rated at 3.5 amps each (alternating current

G

ILDERFLUKE

& C

O

.205 S

OUTH

F

LOWER

S

TREET

B

URBANK

, C

ALIFORNIA

91502 818/840-9484 800/776-5972

FAX

818/840-9485

E

AST

C

OAST

/F

LORIDA

O

FFICE

7041 G

RAND

N

ATIONAL

D

RIVE

S

UITE

128d O

RLANDO

, F

L

. 32819 407/354-5954

FAX

407/354-5955

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