Philips pe1642 User Manual
Cholceof400Wor 1000Wcspelty ',~,-
Philips
PE 1642 / PE 1644 ....
Adjustable constant vo/tage/current operation wlth automatlc crossover and vlsual
LED Indlcatlon
Systems facilities: remote contral, senslng, master/slave,
Separate volt and ammeters
Built-in over-voltage protection
MTBF of 50 000 operating hours
These 400W and 1000W power supplles
use the thyristor, pre-regulation technique
and a unique design feature that increases
efficiency and reliability whilst reducing
tost. They are ideal for both laboratory and
OEM applications, having comprehensive
systems facilities. Separate volt and am-
meters. coarse and fine potentiometers.
bright LED displays tor mode indication and
automatic indication of crossover also make
the units simple and convenient to use.
The comprehensive over-voltage and over-
load protection is standard.
Systems facilities
Simple jumper connections are made to
provide the required system facilities.
These cover remote sensing, operation in
series or parallel. master/slave operation
plus remote programming of both voltage
and current outputs.
High efficiency
The units employ the standard anti-surge
choke on the prlmary, not secondary side
of the mains transformer. This way the
mains supply makes up the losses directly.
instead of having them compounded via the
transformer. The overall result is a lighter,
more compact design with greater reliability.
lower price.
Ultra retlable
The high MTBF figure of 50 000 operating
hours in the result of many factors: experi-
ence, Philips being the leading European
power supply manufacturer; research, into
components and connection techniques,
which in turn is backed by extensive quality
control facilities and finally, conservative,
worst-case designs, wh ich ensure that
under normal operating conditions there is
considerable reserve in the Philips specification.
Stable outputs
All units feature very stable outputs with
high resolution and low ripple. They can
work on a variety of line supplies and can
cope with mains variations of up to 10%.
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PERFORMANCE TABLE FOR 400W AND 1 OOOW SE RIES
ASACONSTANTVOLTAGESOURCE PE 1842 PE 1844 PE 1646 PE 1848 PE 1M3 PE 1M5 PE 1647 PE 1649
Outputvoltege
Continously adjusted wittl coarse andfpotentiometer between: 0., :8f/
R88OIution 0 """"V
SIabItIty 8g8in" me-V8r8IIonI .co ~
With I1IIins voItage variations of + or - ~ . "~J';
400Weeri.. 1000w..,iea
'e
...
Ihemax.changeollheOUipulvoliageia: .. t.;!
St8bi8y8g8Ift8tloadV8rl8tloft8 ic(!
Wilh Ioad variations of 0...100% the mlX..~ ;'
01 the OUtput voltage is:
InI8m8I"""'nce dyn8Inlc i"
ForsirnJsoIdalloadvariationsfrom80~to1OO% '.i
ollulikladatfrequencies.vpto25OkHz~uniI ";'c
willh_1hefollowjngintemalres~ ?"~':
1kHz O. e""c".. - ~..
10kHz O.o.cl 8:81 OJfi : O.M""""~;' C~... o;eso " -0.1. ,.' ~..;,
1OOIcHz ,'..
250kHz
R IppleYolt8ge
The RMS value 01 the rippievoltage will be:
This is valid for anyinputvoimge betwe."
90% and 110%nominalandforanyloedbetween
no.loadandfuUload
Ta~~-CO8fRCI8It
The tempelature coefficIefItfor.any ambient
tempelBture variation in a~ngeof0-4O"C will be:
R-rUllle
For a sudden.increaseffam50% load to maximum
load orloracorresponding decrement.
the recovery1ime is:
AS A CONSTANT CURRENT SOURCE
Output ~
The output current is continuously adju.-ble
in onerangebymeans ofa coarse and 1-
~~
potentiometer between:
Reeolution
Stebllfty 898ln" malnsV8r1ltione
With mains voltage variations of + or -10%
the max. changeoltheWtputcurrent ja;
StIbIlliy IgaIn8IloadvMt8tioft8
With load variations 01 0...100% the max. ctl8nge
01 Ihe output current is:
Ripple cunent
In eIl circumstances the RMSvllueJ>ltheripple
currentwillbe:
Temperature coefft
Wlthtempe~tureva .
0...400cthetempe~t
01 Ihe OU1ptit current ja:
. Whichever is Ihe greater
. .
C
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