SYSTRON DONNER TL8-3 Series User manual

INSTRUCTION MANUAL
ON
STABILIZED
TRIPLE POWER SUPPLY
TLS-3 SERIES
SVSTRON
G M B H
DONNER

Note:
Address:
INSTRUCTION MANUAL
AC
MODEL TL8-3 EG and TL8-3 EG OV
STABILIZED TRIPLE POWER SUPPLY
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In case of technical questions or spare part requests please specify
the model and serial-No.
of the power supply.
SYSTRON DONNER GMBH, 8 Munchen 60, BodenseestraBe 113
Telephone: [phone]

WARRANTY.
SYSTRON-DONNER instruments are warranted during a period of one year from
date of shipment to the original purchaser to be free from defects in
material and workmanship. This warranty does not apply to vacuum tubes,
except as they are warranted
by the tube manufacturer. The liability of
SYSTRON-DONNER under this warranty is limited to replacing or repairing
any instrument or component thereof which is returned by the buyer, at
his expense during the one year period and which has not been subjected
to mis-use,
neglect, improper installations, repair, alteration or
accident.
SYSTRON-DONNER shall have the right of final determination as
to the existance and cause of the defect. In no event shall SYSTRON-
DONNER be liable for collateral or consequential damages.
This warranty is in lieu of any other warranty, express, implied or
statutory, and no agreement extending or modifying it will be binding
upon SYSTRON-DONNER unless it is made in writing and signed by a duly
authorised
officer of the company.
RECEIVING INSPECTION.
Every SYSTRON-DONNER instrument is carefully inspected and is in perfect
working order at the time of shipment. Each instrument should be checked
as
soon as it is received. If the unit is damaged in any way or fails to
operate, a claim should immediately be filed with the transportation
company.
REPAIRS.
Whenever a SYSTRON-DONNER instrument requires service, the near est
SYSTRON-DONNER representative should be contacted. All representatives
will provide immediate
service or arrange the return of the in str ument
to the factory if necessary.
Please specify both
model and serial number in all correspondence
concerning claims for warranty
repair. Address all enquiries to
SYSTRON-DONNER GMBH., 8 MONCHEN 60, BODENSEESTRASSE 113,
Telephone:
(0811) 871 10 21.
i i
TL 8-3/2-73

SECTION
1
2
3
4
5
TABLE OF CONTENTS .
DESCRIPTION
1.1 Introduction ...... .............. .... .... .
1.2 General Features
.. .. . ... . . . . . . .. . .... ... .
1.3 Precautionary
Measures .. . .. . . . .. . .. . .. . . .
1.4 Specification
Data Sheet . .... .. .. . ...... .
OPERATION
2.1 Electrical Connections ...... . ........... .
2.2 Controls
.. . . .. ............ .. . ... ... ..... .
2.3 Operation
.. . ...... .. .......... . ... . .. ... .
THEORY OF OPERATION
3. 1 Genera 1 . .... .............. .. . . ... ... ... . .
3.2 Optional Features
.. ...... .. .... ........ ..
3.3 Block Dfagram . . . . . . .... . .... ......... .. . .
MAINTENANCE
4. 1 Genera 1 . . .•.•• .•• •...• . . • . . •.•..•...•.•.•
4.2 loads and Interconnections ......... . .... .
4.3 Troubleshooting
.. . ..... . ... . . . ... . . .... . .
CALIBRATION
5.1 Genera 1 •..• .•.• •. ••..•• . ••.. ..•.•... . .••.
5.2 Test Equipment Required . ..... ... . ... . .. . .
5.3 Calibration Procedure ...
.. . ............. .
APPENDICES
PAG E
1-1
1-1
1-2
1-3
2-1
2-1
2-2
3-1
3-2
3-3
4-1
4-1
4-1
5-1
5-1
5-1
Troubleshooting Guide . . . . ....... ... . .. A-1 t o A-5
Component Part Plan 0001 / 2 . .......... .
C omponent Part Plan 0002 / 3 . . . . ...... . .
Schematic
Diagram . . ........... . ...... .
TL 8-3/2-73 ; i i

MEASUREMENT OF REGULATION AND RIPPLE
The specifications cited herein for regulation and ripple can be
readily attained on every SYSTRON-DONNER power supply, provided the
proper
method of measurement is employed. The major consideration
is that the highly stable meter and oscilloscope, specified in the
calibration section test procedures, must be connected to the sensing
terminals
and not the load terminals. The reason for this precaution
is
that the voltage drop between the load terminals and sensing
terminals will
yield an inacurate regulation ripple measurement.
i iii
TL 8-3/2-73

SECTION 1
DESCRIPTION
1.1
INTRODUCTION
The TL 8-3 Triple Output Lab Series power supplies are
flexible and dependable sources of D.C. power, which can be used to meet
a variety of needs. These needs may range in scope from inspection and
production testing, to laboratory bench testing and systems applications.
The wide range of outputs available makes these units well
suited for use as basic laboratory power sources. The ability to provide
power packaged in minimum space with high reliability meets the demands
of most systems and laboratory requirements.
All components used in the construction of the Medium Power
Half Rack units are of the highest quality available, and have been
subjected to 100% incoming inspection.
Each electrolytic filter capacitor is of computer grade, and
has been quoted by the manufacturer as having a life expectancy exceed-
ing ten (10) years.
All silicon transistors have been
11
derated
11
and
temperature aged to provide high reliability. All rectifiers are her-
metically sealed
silicon units, and all zener diodes have been tempera-
ture stabilized.
1.2
GENERAL FEATURES
Independent metering for each output allows simultaneous
monitoring
of voltages and current. A front panel lamp indicates an
overload condition on any of the three outputs. Coarse and fine output
controls for
each output permit precise adjustability.
Constant Voltage Mode
A constant voltage is maintained across the output terminals
at any preset value from zero to rated voltage output, provided that the
load does not
draw more than the rated output current.
Automatic Current Limiting
Short circuit protection is provided by the Automatic Current
Limiting circuit which limits the maximum output current under al l load
conditions.
The point at which automatic current limiting occurs is at
approximately 110% of the maximum rated current output of the unit. In
the event of a short circuit, the output voltage will drop to zero, and
will return to its previous level only upon removal of the short ci rcuit.
TL 8-3/2-73 1-1

Automatic Overvoltage Protection (Optional Feature, " A" output only)
Automatic Overvoltage
(OV) protection prevents the output
voltage
from exceeding the programmed voltage and can be internally
adjusted through an access slot in the cover.
1.3
PRECAUTIONARY MEASURES
Wire Size
To assure proper regulation under all load conditions, and to
prevent severe
distortions of the AC line voltage, it is very important
to take into consideration the physical
size and current handling capa-
bilities of the input power line. Serious losses in regulation and an
increase in ripple may result from underrated or overloaded AC input
lines. The maximum AC impedance from the breaker box to the power supply
input should not exceed 0.75
ohms.
Voltage Regulator and Inverter Inputs
Do not use voltage regulators or inverter s as a primary
power source. The outputs of these devices are usual ly not sinusoidal in
nature,
and if used as the AC source for the power supply, may cause
serious loss
of regulation of the power supply output. Capacitive input
filtering used for semiconductor power supplies requires charging to the
peak of the rectified AC wave which non-sinusoidal AC sources may not
provide.
Systems Considerations
In systems applications it is recommended that each powe r
supply input
power line be run separately to the AC distribution box, in
order to
m1n1m1ze cross coupling and interaction between equipment. To
keep the AC ripple in the output to a minimum , it is recommended that the
AC input cables should not be run in close proximity to the output load
cables.
1-2
TL 8-3/2-73

. SV~TADN ~DONNER
FEATURES
e THREE OUTPUTS - IND E PENDENTLY ADJUSTABLE
e AUTOMAT IC EL ECTRON IC CURREN T LI M IT ING
e NO TURN ON /TURN OFF TRAN SI ENTS
e THREE INDEPENDENT DUAL RANGE M ET ERS
e OVE RVOLTAGE PROTECTION OPTION
ELECTRICAL SPECIFICATIONS
Input: 220 VAC ± 10%; 47-65Hz
Output :<1> Triple Floating; isolated from ground, 300 VDC max.
A) 0 to + 8 VDC, 3 ampere; rating reduces to 2 ampere at 0 VDC .
B) 0 to + 32 VDC, 1ampere; rating reduces to 0.5 ampere at
OVDC.
C) 0 to -32VDC at 1ampere; rating reduces to 0.5 ampere at
OVDC.
All outputs are referenced to a common return electrica
ll y
isolated from chassis ground.
Regulation,Line: 0.02% or 2 mV*, for 200-240VAC line change,
at any output within specifications.
Regul at ion, Load: 0.02% or 5 mV*, no load to full load, at any
output within specifications.
Ripple: 500 pV RMS ; 3 mV p-p. (10 MHz)
Stab ili ty: 0.05% or 10 mV*, for 8 hours after warm-up.
Measured at constant line voltage, load and ambient
temperature.
Tem perature Co effi ci ent: (0.02% + 400 ,uVWC
Temperature Range: 0 oc to + 40 °C. ·
Recove ry Time: 50 microseconds to within 0.05% or 15 mV * of
output voltage, for 80% step change
in rated load (.21oad to
full load)
Short Circuit Protection: Automatic Electronic Current Li miting.
AC Power Input Protection: Fuse.
Voltage Adjustment Range: Continously adjustable vernier
controls.
*Whichever is greater.
(1) At maximum line voltage condition, the total output current should not exceed
80%
of total allowable current.
SVSTRCN rlf£?.:) CONNER
G M B H
TL8-3 TRIPLE OUTPUT
LAB SERIES
Output
Impedance*
Model Volts Amps
TL8-3EG 0 to +8VDC
0-3
0 to
+32 V DC 0- 1
Oto -32VDC 0- 1
• N omi nal
GENERAL AND PHYSICAL
SPECIRCATIONS
DC-1 KHz
0.003
0.010
0.010
Operation Mode: Constant voltage with automatic current
limiting.
Controls:
Voltage: Coarse and Fine;0 to rated output; front panel. Reso-
lution 1 mV on fine contr ol.
Input Power: Front panel switch and indicator, AC ON.
Metering: (3) Combination Volt/Ammeters with front panel
selector switch.
Terminals:
Front Panel: Positive output A, Positive output B, Negative
output
C, common return, chassis ground.
Overvoltage Protection: Inte rn al adjustable overvoltage protec-
tion is available, as a factory option on output A (0 to + 8
VDC)
Size: 77/a" W x 47/a" H x 12e/1e" D
Weight: 16 lbs.
8 Mi.inchen 60, BodenseestraBe 113
Telefon [phone] Telex 5-29615

Block Diagram Series Pass
Amplif i er
+
Differential-
Amplifier Option:
OV- Protection
~-----4---4--~--4---------------------------------~------~o Common
Thermal -
Fuse
Line- Fuse
AC - Line
AC LINE CORD
7 FEET LONG WITH
3 PRONG MOLDED
MALE PLUG
-Refere ces
/
OPTIONALOVS
MODULES
(4) RUBBER FEff (REMOVABLE)
U0-32 THREAD ' :D MOUNTING)
-
Differential-
f-:.-- --~~--------------(0 - C- Output
Current- Sensing
13' '
I
)
cl
1
\:
v
2 3/8 '' 9 l/2"
Description
•11-l--~@ GND
\_
~
t-
-,
_j
The TLB-3 Tr iple Output Lab power supply is a multiple
output unit specifically designed
for laboratory applications
utilizing
IC circuitry. Independent output voltages are
provided to allow simultaneous
power to be supplied to
a typical
IC (digital or analog) breadbord circuit, as well as
simultaneously,
two additional independent power sources
for typical au xiliary circuitry. Output voltage and currents
may be independen
tl y monitored
A variety
of voltage and current outputs are available
providing unexcelled operational versatility and flexibility.
Th is output flexibility permits the user to have complete
convenience
in filling laboratory power requirements.
The Triple Lab
Power Supply utilizes silicon semiconduc-
tors permitting operation at its maximum temperature
rating without derating.