# Philips PM2831 Power Supply User Manual

Usin
g
your Pro
g
rammable Power Supply 5 - 7
5.5 HOW TO USE THE OPERATING FEATURES
This section contains information about how to use the features of your power
supply, such as:
• Dealin
g
with output channel-specific ratin
g
s and characteristics.
Performin
g
local and remote sensin
g
.
• Usin
g
an output channel as constant volta
g
e or constant current source.
• Usin
g
the memory functions:
- Store/recall volta
g
e/current settin
g
s.
- Step manually throu
g
h volta
g
e/current settin
g
s.
- Step automatically throu
g
h volta
g
e/current settin
g
s.
5.5.1 Output channel characteristics
PM2811/12/13
Each individual output channel can supply power accordin
g
to its output
characteristic. Fi
g
ure 5.5.1 below
g
ives you information about the three possible
output channel characteristics. The power output is rated and limited accordin
g
to
the formula: P (power) = U (volta
g
e) x I (current).
As an example look at the 30V/10A/60W output channel ratin
g
s:
For volta
g
es from 0 to 6V the current can increase to its maximum of 10A. For
volta
g
es > 6 to 30V, the current can increase to its maximum alon
g
the stated
curve, e.
g
., 20V
g
ives maximum of 3A.
For currents from 0 to 2A the maximum volta
g
e can be 30V. For currents > 2
to 10A, the volta
g
e can increase to its maximum alon
g
the stated curve, e.
g
.,
5A
g
ives a maximum of 12V.
0
10
20
30
40
50
60 70
VOLTAGE U (V)
0
1
2
3
4
5
6
7
8
9
10
11
0
10
20
30
40
50
60 70
VOLTAGE U (V)
0
1
2
3
4
5
6
7
8
9
10
11
0
10
20
30
40
50
60 70
VOLTAGE U (V)
0
1
2
3
4
5
6
7
8
9
10
11
CURRENT I (A)
CURRENT I (A)
CURRENT I (A)
ST5835
6
12
12
P=120W
P=60W
P=60W
Fi
g
ure 5.5.1 Output Channel Characteristics
30V/10A/60W 60V/5A/60W 60V/10A/120W