philips pe1642 电路图.pdf

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. Cholceof400Wor 1000Wcspelty ,- 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 cover remote sensing, operation in series or parallel. master/slave operation plus remote programming of both voltage and current outputs. 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 specifi- cation. 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 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%. RadioFans.CN 收音机爱 好者资料库 Philips ? PE 1642 / PE 1644 . PERFORMANCE TABLE FOR 400W AND 1 OOOW SE RIES 400Weeri. 1000w.,iea ASACONSTANTVOLTAGESOURCE PE 1842 PE 1844 PE 1646 PE 1848 PE 1M3 PE 1M5 PE 1647 PE 1649 Outputvoltege Continously adjusted wittl coarse andf- potentiometer between: 0., :8f/ e R88OIution 0 V . SIabItIty 8g8in me-V8r8IIonI .co With I1IIins voItage variations of + or - . J; Ihemax.changeollheOUipulvoliageia: . t.;! St8bi8y8g8Ift8tloadV8rl8tloft8 ic(! Wilh Ioad variations of 0.100% the mlX. ; 01 the OUtput voltage is: . . InI8m8Ince dyn8Inlc i ForsirnJsoIdalloadvariationsfrom80to1OO% .i ollulikladatfrequencies.vpto25OkHzuniI ;c willh_1hefollowjngintemalres ?: 1kHz O. ec. - . 10kHz O.o.cl 8:81 OJfi : O.M; C. o;eso -0.1. ,. .;, 1OOIcHz ,. 250kHz Ta-CO8fRCI8It C The tempelature coefficIefItfor.any ambient tempelBture variation in angeof0-4OC 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 RMSvllueJltheripple currentwillbe: Temperature coefft Wlthtempetureva . 0.400cthetempet 01 Ihe OU1ptit current ja: . Whichever is Ihe greater R IppleYolt8ge The RMS value 01 the rippievoltage will be: This is valid for anyinputvoimge betwe. 90% and 110%nominalandforanyloedbetween no.loadandfuUload RadioFans.CN 收音机爱 好者资料库 GENERAL SPECIFICATION Input voltage Suitable or mal1S voltages 11O-127-220-240VI 50.60Hz The umts are delivered pre-connected tor 220V Amblent temperature The ambient temperature is allowed 10 have any value between 040.C Polarity The output terminals are insulated !rom the Ch8S8is; either the positive or the negative terminal may be earthed. The electrical data is valid with earthed out- put Protection The units are protected against overvoftage by In ad- justable o.v.p. wh ich interrupts the drive 01 the power transistors. The units are also protected against over- load and short-circuits Indlcatlon LEDs indicate whether the units are used es a constant voltage or as a constant current sourca and also if the output voltage exceeds the preset overvoltage Ivel. Efficiency 62% PE 1642at nominal mains 73% PE 1644 voltage 81 % PE 1646 and max. outPut 81 % PE 1648 power Remote voltageicurrent control The output voltage/current can be programmed (re- motely adjusted) with a resistance or by a voltage source Remot8 Mn81ng Separate sensing termina specifie<2 yoltage regulation at the loa<2 by compensating the load. Is at the rear enable 10 be maintained directty tor voltage drops across Ouallty The units are mechanical, ferred to IEC 68 and IEC MTBF IS 50 000 operating stationary use climatic and safety tested re- 348 (Class I). The predicted hours tor maximum load end Inrush current 40A at 220V mains vollage (400W) Duration 10ms valid tor all unils Serleslp8rallel connectlon Two or more power supply units can be connected in parallel or in serles M8st8rlsl8v8 opef8t1on ane unit (master) can control the connected units (slaves) when more units are used in series or parallel connection. The terminal block at the rear of the unit elimlnates the need to rewire internally tor this func- tlon Design The units have been designed tor use as table model as weil as tor 19-in rack rTiounting Meters The units feature sepa,.,.vohand amp. meters. U8in81nterference Conforms 10 VDE 0875 N-level Olmensions and (wxhxd) 444 x 132 (19x51xI24.in) 400W 21 kg (46Ib) welght x 360mm (1000W 471mm) (1000W 18.8-in) I000W37kg (81.4Ib) RadioFans.CN 收音机爱 好者资料库