Ea Elektro Automatik EA Elektro-Automatik EA-ELR 9250-140 3U Electronic Load 0 - 140 A 0 - 250 Vdc 0 - 7000 W 33200406 Hoja De Datos

Los códigos de productos

33200406

Page 65

EA Elektro-Automatik GmbH

Helmholtzstr. 31-33 • 41747 Viersen

Germany

Fon: +49 2162 / 3785-0

Fax: +49 2162 / 16230

ELR 9000 Series

By linking together a number of differently configured sequences, complex progressions can be created. Smart

configuration of the arbitrary generator can be used to match triangular, sine, rectangular or trapezoidal wave func-

tions and thus, e.g. a sequence of rectangular waves with differing amplitudes or duty cycles could be produced.

Assignment to either U or I makes up to 100 sequences available for either current or voltage

but not a mix. That means that a sequence X which produces a ramp up on current cannot be

followed by sequence Y which applies a sine wave to the voltage.

Schematic diagrams:

Applications and results:

Example 7
Focussing 1 cycle of 2 sequences from 100:
A sequence configured as in example 3 is run.

As the settings demand that the end offset (DC)

is higher than the start, the second sequence

run will revert to the same start level as the first,

regardless of the values achieved at the end of

the first run. This can produce a discontinuity

in the total progression (marked in red) which

may only be compensated with careful choice

of settings.

Sequenz 1

Sequenz 2

Example 8
Focussing 1 cycle of 2 sequences from 100:
Two sequences run consecutively. The first

generates a sine wave with increasing ampli-

tude, the second with a decreasing amplitude.

Together they produce a progression as shown

left. In order to ensure that the maximum

wave in the middle occurs only once, the first

sequence must end with a positive half wave

and the second start with a negative half wave

as shown in the diagram..

Sequenz 1

Sequenz 2

Seq. 3

Sequenz 4

Example 9
Focussing 1 cycle of 4 sequences from 100:
Sequence 1: 1/4th of sine wave (angle = 270 °)
Sequence 2: 3 Sine waves (relationship fre-

quency to sequence time: 1:3)
Sequence 3: Horizontal ramp (f = 0)
Sequence 4: Falling ramp (f = 0)