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DC POWER SUPPLY STB SERIES. MODEL 6llOA Printed: May, 1967 @ Stock Number: 06110-90001 COPYRIGHT AND DISCLAIMER NOTICE Copyright - Agilent Technologies, Inc. Reproduced with the permission of Agilent Technologies Inc. Agilent Technologies, Inc. makes no warranty of any kind with regard to this material including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Agilent Technologies, Inc. is not liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material or data. MANUAL Model Manual SERIAL Prefix 6~ 6E ALL 6E 6E 6E II45A 1145A 1723A 183lA 0213 0513 6lIOA DC Power Supply HP Pati No. 06110-90001 No. MAKE CHANGES Number - 0512 - 0667 1 1,s Errata 1.2,3 ls2j3.4 1 thru 1 thru I thru 1 thru I. thl 0668 - Q7,17 0718 - 0742 0743 - 0842 0843 - 0932 0933 --1447 I448 - 1507 1508 . LID CHANGE CHANGE 1901-0327, RS 6. Change CR29 and CR30 to: Rect. Si. 75OmA 8OOpw. quantity 2, IN5062, GE 03508, HP Part No. 1901-0330, RS 2. CHANGE 3: In the Replaceable Parts Table, change the HP Part No. of switch Sl to 3lOI-1244, This witch requires new front panel lettering. 5 6 7 8 9 CHANGE 4: In the replaceable parts table, No. of switch Sl to 3lOI-1248. 1: In tho Replaceable Parts Table, change 8.2Kn to 4.3L, G%, $W, HP Part No. A. B. 01121. CHANGES R76 from 0686-4325. change the HP l’art In the Replaceable Puts Table, deleta the listing for BNC-H!l Cable Plug and associated hardware and add new listing: BNC-Z-IV Connector, HP Part No. 1250-1267. ERRATA: 2; In Replaceable Parts List, make the following changes: Cl9: Change to HP Part No. 0180-2256. X201 thru R209: Change to lL, +l%, +W, HP Part No. 0811-2770. P.G. Board: Change to HP Part No. 06110-60005. Rl9: Change to IKn, &l%, +W, HP Part No. 0811-2770. T2: Change to HP Pz,rt No. 5080-7129. Option OS: T2: Delete. (Transformer need not be changed.) Option 18: T2: change to HP Part No. 5080-7130. In Table ~omtnon 5-2, Step connection 5 (Page S-9). change to “Vl72 anode.” the Meter In the Replaceable Parts Table, add the following: Over, heating element, HP Part No* 8110-0159. (Installation and calibration instructions for oven are covered in Service Note P-5060-6125.) ERRATA: In Table l-l and page 5-5, paragraph 5-31, c., change the ripple and noise specification “Less than 2mVrms and 5mV p-p. ” step to: ERRATA: QT. 8: Change to 2N2907As Sp:ague, Part No. 1853-0099. SS PNP Si. In Replaceable change: QIl: Change 1854-0311. Puts TabIe, tQ 2N4240, make RCA, 56289, change CHANGE The Serial Prefix of this lI45A. This i3 the only the followinq HP Part No. On Page 6-8, under Manual Backdating change the second wntence to read: To adapt the manual to se&l numbers 6FOl61, make the following changes. On the Schematic Diagram. Cl4 to 2OpF. EP unit has been change. CHANGE Changes, prior to the value of capacitor In the Replaceable Parts Table, make the following changes: Change CRll, 24-28, and 32 to: Rect. Si. 750mA 2OOprv, quantity 7, IN5059, GE 03508, HP Part 6: In the Replaceable Parts Table change R9 to 120.&5%, 1,‘2W, 1215. changed to ?! and on the schematic, HP Part No. 0686- The etandwd colors for this instrument We now mint gray (for fron’c and rear panels) end olive grey (for ell top, bottom, side, end other external curOption X95 de3ignatee use of the former frmd. color scheme of light gray end blue gray. Option A8S designates use of a light gray front panel with olive gray used for 811 other external swfaoee. NEW pert numbers are shown below: ,HP PART NO+ DESCRIPTION STANDARD OPTION Panel Side Chaesis, Right 5OSO-7950 - Side Chassis, Left 5060-7949 .- Rear Chassis - ass'y 5000-3482 A 5000-9421 q- (2) OPTION x95 06110-00001 l?rord cover, A85 06lU-00002 ., 1 SM MatItle Pa-c6 List 1 ERRATA: Make the following changes to the parts list or, page 6-8: Option 05: Delete Tl (Transformer need not be changed). Optlor, 18: Add R55, 12OK 5% I/UN, 06861245. OptLone 05 and, 18:. Add R55, game 83, Option 18 above; change HP Part No. of T2 to 5080" 7130, Change part number of rubber bumper from 0403-0088 Co 0403-0002. On pago 6-5 and on the schematic, change C2Y and C28 to lpp 2000~ HP pati No. 0160-4121. Add to the puts llet fx Uluminated swl,tch used tn th?se suppl!es The HP Part NT. ?f the 0244, the replacement lamp 3lWL248, whtch 1s that ~,nclude Change 4. type AIH lamp 1,s 2l40 - Add tq the parts IIst the mating plugs for the front panel output connectors. They we type BNC-HV mele coaxtal plugs, HP Part No. 1250 0927, Two are prwtded, Effecttve January 1, 1977, Options 005 (5OW eo ibput) and 018 (230 vet Input) ere no longer aval1 able separately as standard opttons for thts model These two opti,ons heve been replaced bye new standard qptton, Optton 013, which cDmbf,nes the mcxdlftcattgns of Optlone 005 and 018 f?r use with a 230 Vac+lO%, 50&O. 3Hz !,rqut. After ,anuery I, Model 6llOA Instruments for use wtth a 115Vac 5OHz ,,nput w a 23fJVec bOHz lr,put must be ?rdered as s~edel fectxy m~diflcet!raw Make the net eseery correoti,qns wherever Optl?n 005 qr 018 !,s mentioned f,n the manual, The blue gray meter bezel a black one, HP Part N? CHANGE has been replaced 4040 -4414. by 8: Make the follwtng changes to the schemattc and the parts Ilet; change R71 !I? the overvoltage protwttm ctroult to 2Ok, lO%, HP Part No. 2100-0558; chenge R25 and R67 in the meter clrcuIt t? lOOk, IO%, RP Pert Ng, 2100-3214. , CFlANGE 9: Change power transformer Tl to HP Part Nq, 5080 -1910, The primary gf the netv transformer oan be strapped for 115vac or 23DVac input as shown below. Change reer chassts to HP Pert No. 5000 -.3148. Replace oapacl,tor clamp HP Pert No, 5000 -6023 Wth capeclt?r bracket F?P part ~3. 1210-0006~ Change zener dtgde VRZ tq 9V, 0, 005% ‘.C C,, HP Part No. 1302 - 0785, ,Nqte that the old zener diode (1902 ..0763) Should not be used for a replacement at a*y ttme, TABLE section I GENEML INFORMATION . . l-l Description l-4 Overload ProtectIon l-7 cooling l-9 Output Terminals l-11 Specifications l-13 Ootions A&essories I-15 l-17 Instrument Identification l-20 Ordering Additional Manuals I I INSTALIATION . . . Z.-l InitiaL 1nspemion z-3 Mechanical Check 2-S Electrical Check z-7 In~tellation Data 2-9 Location Z-11 Rack Mounting 2-15 Input Power Requirwnents Z-17 Power Cable 2-20 Repackaging for Shipment I I r OPERATING INSTRUCTIONS. 3-, nlm-0” Cklcxk out Prooedure 3-3 opetat1otl 3-5 Currant Limit Provisions 3-7 Operation of Supply Beyond Rated Output 3-9 Load Connection 3-13 output capacitance 3-15 Revwse Current Loading 3-17 Reverse voltage Loarang . OF CONTENTS SeGtiOl7 IV PRINCIPLES OF OPEPATION 4-29 Protection Circuit 4-3 1 ovw Control Circuit 4-33 Reference Clrouit 4-37 M,e’cer Circuit Page NQ. .1-l l-l l-l l-l l-l l-l l-l l-l 1-z l-2 Page No(ContWued) 4-5 4-5 4-5 4-6 V MAINTENANCE.. . . . . . . . . . . , . . . ,.5-l 5-l Introduction 5-l 5-3 High Voltage Precautions 5-l 5-6 Measurement Techniques 5-l 5-9 Test Equipment Required 5-l 5-11 P&ormanc~ Test 5-3 5-14 Rated Output, Meter, and Output Controls Acouracy 5-3 S-17 Load Regulation 5-3 s-13 Line Regulation 5-4 5-z 1 Ripple and Noise 5-4 s-35 Ti-ansiwlt Recow?~ Tims 5-6 5-39 Output Impedance 5-7 5-42 Temperature Goefficient 5-a 5-46 Output StabMty 5-8 5-49 cument um1t 5-9 5-51 Troubleshooting 5-9 r +? a-32 Overall Troubleshooting FYoceduw s-9 5-59 Repair and Replacement S-15 5-61 Adjustment and Calibration 5-17 5-63 Output Voltage Zero and Tracking 5-17 S-65 Meter Mechanical Zero 5-17 5-67 Voltmeter Tmcking 5-17 5-63 Ammeter Zero S-17 5-71 Ammeter Ttacking 5-17 5-73 Overvoltage Protection 5-17 5-Y 5 Oven Control Circuit 5-18 5-18 5-77 Current Limit Adjustment .2-l Z-1 2-l 2-l 2-l 2-l Z-l 2-2 2-2 2-z .3-l 3-l 3-l 3-l 3-l 3-l 3-2 3-2 3-2 IV PRINCrPLES OF OPERATION ... . . . . . 4-l 4-l Overall Block Diagrem Di~cusslon 4-2 4-8 Simplified Schematic Discussion 4-3 4-12 Detailed Glrcuit Analysis 4-4 4-13 Series Regulator 4-4 4-15 Constant Voltage Input Circuit 4-4 4-21 Driver and Error Amplifier 4-4 4-23 Current Limit Circuit 4-4 4-25 High Voltage Control and Doubler Circuits 4-4 VI ii REPLACEAELE PARTS.. . . . . . . 6-l lntroduotion 6-4 Ordering Information Reference Designators Abbreviations Menufaoturers 6-8 Code List of Manufacturers Parts List Table .. . , ,6-l 6-l 6-l 6-2 6-5 TABLE OF CONTENTS LIST Table I-l 5-l 5-2 5-3 5-4 FIgme s-2 OF TABLES Specifications.. Test Equipment., *. Bias, Reference, and Rectifier Voltages.. Low Output Voltage TroubleshootirQ.. High Output Voltage Troubleshooting LIST 1-l 2-l 2-2 3-l 4-l 4-2 5-l (CONTINUED) DC Power Supply Rack Mwnting, Two Units Rack Mounti!?g, 01’1e Unit Fwnt Panel Controls and Indicators Ova-all Block Diagram Simplified Schematic Diagram High Voltage and Troubleshooting hC.diQ~ Diagram Diffwatial Voltmeter Substitute, Test setup . Page No. l-3 5-2 5-9 ~. 5-12 , j-14 OF ILLUSTRAT!ONS Page No. iv 2-l 2-2 3-l 4-l 4-3 5-l Figure s-3 5-4 5-5 5-6 5-7 5-E 5-9 5-10 5-3 5-11 LinEand LoadRegulatiw, Tm5t S&up Ripple and Noise, Test Setup High Voltage Protection Network Noise Spikes, Test Setup Transient Recovery Time, Test Setup Transient Recovery Time Wavefarns Output Imwdamx, Test Setup Printed Circuit Board Location Diagram Servicing Printed Wiring Boards Page NO. 5-3 5-4 5-5 5-6 5-7 5-7 5-7 5-10 5-16 Figure I l-l. DC Power Supply, Model 1” 6llOA “‘.-I 1-l DESCRIPTION l-10 Output power is available vie ,mo WG-931/U connectors mounted on the front panel of the supply, Mating cornwctors (UC=-932/U) are supplied with the unit. The output terminals are isolated from the chassis and either the positive or the negative terminal tnay be connected to the chassis by shorting the cer~ter ptn tQ the case of the epplica< ble VG-931/U connector, or by grounding e wire from the connector to the chassis, The p0Wer *UPply is insulated to permit operation up to 1,000 volts dc off ground, i. e. the maximum potential between either output terminal end ground shall not exceed 4KVdc, l-2 This instrument (Figure 1-l) is an all semiconductor high voltage supply suitable for either bench or relay rack opwation. It is a compact, well-regulated, Constant Voltage/Current Limited supply that will furnish 3, 000 volts et 6 m~lliampS or carp be adjustEd throughout the output voltage range, It is designed for *ppIicattons rwuiring extreme EtabilIty, regulation, and insensitivity to ambient temperature variations. l-3 This supply utilizes a series regulated “piggy-back” circuit technique.that consists of placing e well-regulated low voltage power supply in series with e lees well-regulated supply having a greeter vo!tage capa.bility. The well-regulated “piggy-back” supply continuously com!x”setee for any ripple, load regulation, or Iine regulation deficiencies of the main power source end adjusts the voltage across its series regulator so that the total output voltage remains constant despite disturbances in the main voltage source. l-4 l-11 l,-12 Detailed specificatlone are. given tn Table 1-l. l-13 for the Pow” SUPPlY OPTIONS l-14 Options are factory modifications of a standard instrument that are requested by the customer, The following options are available for the instrum mmt covered by this manual. Where necessary. detaIled option information (operation, alignment, etc.) is included throughout the manual, OVERLOAD PROTECTION 1-S The voltage thumbwheel witches select the constant voltage level: an internal potentiometer selecte the current limit level. The supply will automatically crossover frbm conetant voltage to currant limit operatim and vice versa if the output current or voltage exceeds these preset levels. Detailed characteristics of the output current iimittng are given in Paragraph 3-5. Option No* l-6 The powor supply is protected from .+everse voltage (positive voltage applied to negative terminal) by en internal protection diode thet shunts current across the output terminal6 when this condition exists, clamping tha reveree voltage. Protection from rewrse current (current forced into the power $upply in the direction oppoiite to the output current) must be provided by prebading the power supply (Paragraph 3-151, The power euppIy cannot accept reverse current without damage. l-7 SPECIFICATIONS Wescription 05 5OHz Inwt Modification, Factory modification includes the substitution of 60&z with SOHz magnetic component as indicated at the end of the perte 1Ist in Section VI. In addition, the overvoltage ProtectIon adjustment is rechecked, refer to Section V. 18 23OVac +lO%, Sinqle-Phase Xnput. Factwy modiftcation includes the installation of a 230 volt input transformer to replace the standard 115 volt transformers es indicated at the reer of the parts list in Section VI. COOLlNG l-15 ACCESSORIES l-16 may 1-l be The accessories listed in the following chart ordered wtth the power supply or SePeretel~ @ Part NO, 14515A 145 25A l-1Y nescriptim Rack Kit for Mounting one 54” H supply in a standard 19” EIA rack. (Refer to Section II for details. ) Rack Kit for mounting two 5+” H supplies in a standard 19” EIA rack. (Refer to Section II for details. ) INSTRUMENT IDENTIFICATION l-18 Hewtett-Packard power supplies are icientified by a three-part serial number tai. The first part is the power suwly model number. The setand part i3 the swial’number prefix, which consists of a number-letter combination that denotes the date of a significant de&vi change. The number respectively. The third part is the serial number: a different sequential signed TV each power supply. supply number is as- power l-19 If the serial number prefix on your power supply does not agree with the prefix on the title page of this manual, use the change page that is included to update the manual to the proper serial number. Where applicable, backdating tnformation is given in an appendix at,the rear of the manual. l-20 ORDERING ADDITIONAL MANUALS l-21 One manual is shipped with each power supply. Additional manuals may be purchased from your local @ sales office (see list at i-ear of this manual for addresses). Specify the model number, serial number prefix, and @ St&k number provided on the title page,