Y
/
sec
2 00 0
1 500
1 00 0
50 0
5
Figure 7
CD
832- 30 R
<1) 832-20 R
G)
860- 1 5 R
©
860- 10R
10
20
@
832 -lOR
® 860- 5 R
0) B
32 -- 5 R
®
860-2, 5 R
30
DC
Output
Current
If the output current is higher than
1
A and n.•)re than
1
A below the current
limit, the amplitude increases correspondingly (see figare
7) .
When applying a sine-wave, the slew-rate limitation implies, that the maximum
output peak to peak amplitude with minimum
1
A load and minimum
1
A
below the current limit will be:
with
50
Hz
500
Hz
5000
Hz
1
v
0, 1
v
10 mV
These figures apply
fo::c
all RAC PAC 'S with a
200 V
/sec slew-rate at
1
A.
For other RACPAC'S
the
peak to peak amplitude is proportional to the
slew-rate.
The modulation technique of controlling the power supply also makes it possi
ble to vary the output voltage over the whole output voltage range with a low
power signal. Then the power supply acts as a DC power amplifier.
Maximum frequency range with high modulation amplitude (typically)
Model
B 32-5R
B32-10R
B32-30R
B60-2 , 5 R
B60-5R
B60- 15R
I peak=max. spec.
V
peak=max. spec.
V
min. =
O V
2
Hz.
2
Hz
3
Hz
0, 5
Hz
1
Hz
2 Hz
The modulation input has an impedance of
1
kohm.
I peak·
i:1?.x.
spec.
V
pe::�.-msx. spec.
V
m�n. =
5 V
4 Hz
4 Hz
4 Hz
1
Hz
2
Hz
4 Hz
When the power supply is used as DC power amplifier, it is convenient to
regard the output
"+"
terminal as ground potentional, as it is common to
both input and output. (Prong
N
is internally connected to
"+"
side sens
i
terminal). With this definition the pb.ase angle
of
the power supply is
180
•
The modulating signal can be applied through prong
K
in the rear input socket
only.
13
