xx
PWS4205, PWS4305, PWS4323, PWS4602, and PWS4721
Linear DC Power Supplies
ZZZ
Specifications and Performance Verification
Technical Reference
*P077048000*
077-0480-00
xx
PWS4205, PWS4305, PWS4323, PWS4602, and PWS4721
Linear DC Power Supplies
ZZZ
Specifications and Performance Verification
Technical Reference
Warning
The servicing instructions ar
only. To avoid personal injury, do not perform any servicing
unless you are qualified to do s
before performing service.
e for use by qualified personnel
o. Refer to all safety summaries
www.tektronix.com
077-0480-00
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifica tions and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O . B ox 50 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
World wide, vis it www.tektronix.com to find contacts in your area.
Table of Contents
General Safety Summary ......................................................................................... iii
Specifications ........................ .................................. ................................ ............. 1
Performance Verification ................. .................................. ................................ ....... 9
Test Rec o r d
Performance Verification Procedures ....................... ................................ ................ 19
........................ ................................ ................................ ............ 10
PWS4000 Series Specifications and Performance Verification i
Table of Contents
List of Tables
Table 1: Specifications...... ................................ ................................ ....................... 1
Table 2 : USB
Table 3: Terminal strip characteristics ........................................................................... 5
Table 4: Mains power characteristics ............. .................................. ............................. 6
Table 5: Mechanical characteristics ..... ................................ .................................. ....... 6
Table 6: Environment performance.......................................... ................................ ..... 7
Table 7: Keypad special operations .............................................................................. 8
Table 8 : D
Table 9: DC voltage accuracy without remote sense .......................................................... 12
Table 10: DC voltage readback accuracy ....................................................................... 13
Table 11: DC voltage line regulation............................................................................ 14
Table 12: DC voltage load regulation ....... ................................ .................................. .. 14
Table 13: DC overvoltage detection................. ................................ ............................ 14
14: DC current accuracy................................................................................... 15
Table
Table 15: DC current readback accuracy ....................................................................... 16
Table 16: DC current line regulation ............................................................................ 17
Table 17: DC current load regulation ............. .................................. ............................ 17
Table 18: Voltage noise at 7 MHz ....... ................................ .................................. ...... 18
Table 19: Voltage noise at 20 MHz.................. ................................ ............................ 18
ble 20: Current noise at 20 MHz........................ ................................ ...................... 18
Ta
Table 21: Test equipment. ................................ ................................ ........................ 20
characteristics ................. ................................ ................................ ..... 4
C voltage accuracy with remote sense.............................................................. 11
ii PWS4000 Series Specifications and Performance Verification
General Safety Summary
General Safet
To Avoid Fi
re or Personal
Injury
ySummary
Review the fo
this product or any products connected to it.
To avoid pot
Only qualified personnel should perform service procedures.
Use proper
certified for the country of use.
Use prope
is in the proper position for the source being used.
Ground t
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
llowing safety precautions to avoid injury and prevent damage to
ential hazards, use this product only as specified.
power cord. Use only the power cord specified for this product and
r voltage setting. Before applying power, ensure that the line selector
he product. This product is grounded through the grounding conductor
Power disconnect. The power switch disconnects the product from the power
source. See instructions for the location. Do not block the power switch; it must
remain accessible to the user at all times.
Do not operate without covers. Do not operate this product with covers or panels
removed.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when
power is present.
Use proper fuse. Use only the fuse type and rating specified for this product.
Do not operate in wet/damp conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Provide proper ventilation. Refer to the manual's installation instructions for details
on installing the product so it has p roper ventilation.
PWS4000 Series Specifications and Performance Verification iii
General Safety Summary
TermsinThisManual
Symbols and Terms on the
Product
These terms may
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
These terms may appear on the product:
DANGER in
the marking.
WAR NI N G
read the marking.
CAUTIO
The following symbol(s) may appear on the product:
appear in this manual:
dicates an injury hazard immediately accessible as you read
indicates an injury hazard not immediately accessible as you
N indicates a hazard to property including the product.
iv PWS4000 Series Specifications and Performance Verification
Specifications
This section contains specifications for the PWS4000 series instruments. All
specifications are guaranteed unless noted as "typical." Typical specifications are
provided for
marked with the
Table 1: Specifications
Parameter PWS4205 PWS4305 PWS4323 PWS4602 PWS4721
Constant voltage
n, nominal
operatio
Voltage range
This is th
over which the
output voltage is
adjusta
Remote sense
voltage
Voltage resolution,
nomin
accuracy with
remote sense
At 25 °C ±5 °C
accuracy without
remo
At 25 °C ±5 °C
Current limit,
nominal
Voltage
temperature
co
Constant current
o
C
This is the range
over which the
output current is
adjustable
e range
ble
range
al
Front panel:
amming:
Progr
Voltage setting
Voltage setting
te sense
efficient, typical
peration, nominal
urrent range
The unit may be set to a constant voltage over a range of currents
0to20V 0to30V 0to32V 0to60V 0to72V
The tota
minimum of 0.1 V/line for remote sense.
The voltage each terminal of the remote sense function is allowed to vary from the respective output terminal
is 0 V to
1mV
0.1 mV
±(0.
settling+3mV)
±(0.05% of
settling + 10 mV)
Defined by the constant current setting. The changeover is automatic.
±(0.02% + 3 mV)
pe
the25°C±5°C
standard range
The unit may be set to a constant current over a range of voltages.
0Ato5A 0Ato5A 0Ato3A 0Ato2.5A 0Ato1.2A
l voltage from the – terminal to the + terminal may not exceed the rated FS voltage + 0.2 V, allowing a
1V.
1mV
0.1 mV
03% of
r °C outside
±(0.
settling+3mV)
±(0.05% of
settling + 10 mV)
±(0.02% + 3 mV)
pe
the25°C±5°C
standard range
your convenience but are not guaranteed. Specifications that are
symbol are checked in Performance Verification.
03% of
r °C outside
1mV
0.1 mV
03% of
±(0.
settling + 3 mV)
±(0.05% of
settling + 10 m V )
±(0.02% + 3 mV)
r ° C outside
pe
the25°C±5°C
standard range
1mV
0.5 mV
03% of
±(0.
settling+6mV)
±(0.05% of
settling + 20 mV)
±(0.02% + 6 mV)
r °C outside
pe
the25°C±5°C
standard range
1mV
0.1 mV
±(0.
settling+6mV)
±(0.05% of
settling + 20 mV)
±(0.02% + 5 mV)
r °C outside
pe
the25°C±5°C
standard range
03% of
PWS4000 Series Specifications and Performance Verification 1
Specifications
Table 1: Specifications (cont.)
Parameter PWS4205 PWS4305 PWS4323 PWS4602 PWS4721
Current resolution,
nominal
Front panel:
Programming:
Current setting
accuracy
At 25 °C ±5 °
C
nominal
Current
temperature
coefficient, typical
nominal
Meter,
nt readback
Curre
resolution, nominal
Current
readback accuracy
At 25 °C ±5 °C
Current readback
temperature
coefficient, typical
Voltage
dback accuracy
rea
At 25 °C ±5 °C
ltage readback
Vo
resolution, nominal
ltage readback
Vo
temperature
coefficient, typical
Maximum input
VA
,typical
RMS
Line regulation
– voltage
0.1 mA
0.1 mA
±(0.05% + 2 mA) ±(0.05% +
0.1 mA
0.1 mA
2.5 mA)
0.1 mA
0.1 mA
0.1 mA
0.1 mA
±(0.05% + 2 mA) ±(0.05% +
1.5 mA)
0.1 mA
0.05 mA
±(0.05% + 1 mA)
0to20V 0to30V 0to32V 0to60V 0to72VVoltage limit,
Also see the Over Voltage Limit characteristics.
(See pag
±(0.05%
per °C outside
the25°C±5°C
standa
e3.)
+2mA)
rd range
±(0.05%
+2mA)
per °C outside
the25°C±5°C
rd range
standa
±(0.05%
+2mA)
per °C outside
the25°C±5°C
rd range
standa
±(0.05%
+1mA)
per °C outside
the25°C±5°C
rd range
standa
±(0.05%
0.5 mA) per °C
outside the 25 °C
±5 °C st
range
al measurement capability. Voltage and current are measured internally.
Intern
0.1 mA
±(0.05% of
reading + 2 mA)
±(0.05% + 2 mA)
per °C outside
the25°C±5°C
standard range
±(0.05% of
reading + 2.5 mA)
±(0.05% + 2 mA)
per °C outside
the25°C±5°C
standard range
±(0.05% of
reading + 2 mA)
±(0.05% + 2 mA)
per °C outside
the25°C±5°C
standard range
±(0.05% of
reading + 1.5 mA)
±(0.05% + 1 mA)
per °C outside
the25°C±5°C
standard range
±(0.05% of
reading + 1 mA)
±(0.05% +
0.5 mA) per °C
outside the 25 °C
±5 °C standard
range
±(0.02% of
reading + 3 mV)
V
1m
±(0.02% of
reading + 3 mV)
er °C outside
p
the25°C±5°C
standard range
±(0.02% of
reading + 2.5 mV)
±(0.02% of
reading + 2 mV)
er °C outside
p
the25°C±5°C
standard range
±(0.02% of
reading + 3 mV)
±(0.02% of
reading + 3 mV)
er °C outside
p
the25°C±5°C
standard range
±(0.02% of
reading + 6 mV)
±(0.02% of
reading + 6 mV)
er °C outside
p
the25°C±5°C
standard range
±(0.02% of
reading + 5 mV)
±(0.02% of
reading + 5 mV)
er °C outside
p
the25°C±5°C
standard range
350 VA 500 VA 350 VA 500 VA 350 VA
Change over the
full rated input
voltage: ±(0.01%
+1mV)
Change over the
full rated input
voltage: ±(0.01%
+1mV)
Change over the
full rated i nput
voltage: ±(0.01%
+1mV)
Change over the
full rated input
voltage: ±(0.01%
+2mV)
Change over the
full rated input
voltage: ±(0.01%
+1mV)
+
andard
2 PWS4000 Series Specifications and Performance Verification
Specifications
Table 1: Specifications (cont.)
Parameter PWS4205 PWS4305 PWS4323 PWS4602 PWS4721
Line regulat
ion
– current
Load regul
ation
– voltage
Load regulation
– current
Voltage ripple,
20 MHz bandwidth
Voltage ripple,
7 MHz bandwidth
Current ripple,
20 MHz bandwidth
Voltage transient
response settling
time, load change
Voltage transient
response settling
time, setting
change, rising
Voltage transient
response settling
time, setting
change, falling
Isolation voltage
Over Voltage
otection setting
Pr
accuracy
Over Voltage
Protection “ON”
oltage, typical
v
Change over
full rated i nput
voltage: ±(0.05%
+0.1mA)
Change from 0 to 100% of full scale current; ±(0.01% + 2 mV)
Change from 10
to 90% of full
scale vol
tage;
±(0.05% +
0.1 mA)
RMS
RMS
p-p
RMS
and 20 mV
and 12 mV
RMS
and
<3mV
<1.5mV
<1mV
3mV
<3mA
<400 μs to within 75 mV following a change from 0.1 A to 1 A.
<35 ms from beginning of excursion to within 75 mV of terminal value following a change from 1 V to 11 V into
a 1 A load.
<35 ms from beginning of excursion to within 75 mV of terminal value following a change from 11 V to 1 V into
a 1 A load.
The output can be floated up to 100 V (DC + pk AC (where the AC component cannot exceed 3 V
60 Hz max)) between the Earth Ground term inal and any of the following terminals:
Positive Output (+), front or rear panel
Negative Output (-), front or rear panel
Remote Sense (+ or -). Must maintain correct voltage relative to the related output.
All other rear panel terminals are grounded.
0.5% of setting + 0.5 V
V
<1
Change over
full rated input
voltage: ±(0.05%
+0.1mA)
Change from 10
to 90% of full
scale vol
tage;
±(0.05% +
1.5 mA)
, guaranteed
p-p
,typical
p-p
<1mV
4mV
<4mA
and
RMS
p-p
RMS
Change over
full rated input
voltage: ±(0.05%
+0.1mA)
Change from 10
to 90% of full
scale vol
tage;
±(0.05% +
0.1 mA)
<1mV
4mV
<3mA
and
RMS
p-p
RMS
Change over
full rated i nput
voltage: ±(0.05%
+0.05mA)
Change from 10
to 90% of full
scale vol
tage;
±(0.05% +
0.5 mA)
<1mV
5mV
<3mA
and
RMS
p-p
RMS
Change over
full rated input
voltage: ±(0.05%
+0.1mA)
Change from 10
to 90% of full
scale vol
±(0.05% +
0.5 mA)
<1mV
RMS
3mV
p-p
<3mA
RMS
p-p
tage;
and
max and
PWS4000 Series Specifications and Performance Verification 3
Specifications
Table 1: Specifications (cont.)
Parameter PWS4205 PWS4305 PWS4323 PWS4602 PWS4721
Over Voltage
Protection “ON”
holding current,
typical
Over Voltage
Protection
adjustment range,
typical
Over Voltage
Protection
response time,
typical
Over Voltage
Protection setting
resolution
Setup memory,
nominal
Software voltage
limit
>250 mA
A minimum amount of current is required for operation.
1V≤ OVP Setting ≤ FS Output Voltage
It may be possible to set very low voltages for the O VP output but behavior may be unexpected.
<10 ms from voltage sensed in excess of OVP setting to output begins to fall.
1mV
40 setup locations
The maximum settable voltage (MAX VOLT) menu entry, when set below the hardware maximum voltage limit,
disallows adjusting the instrument to voltages more than the MAX VOLT limit.
Table 2: USB characteristics
Parameter All models
USB device USB 2.0 Full Speed device. 12 Mb/sec maximum. Supports USB-TMC communications with Tektronix
ensions to support TEK-USB-488 GPIB to USB adapter.
ext
mmand
Co
processing time,
typical
GPIB interface GPIB access using a TEK-USB-488 accessory through USB port.
mmands will be processed and committed to hardware within 400 ms.
Co
4 PWS4000 Series Specifications and Performance Verification
Specifications
Table 3: Termin
al strip characteristics
Parameter All models
CONTROL IN and
OUT
Port Modes available:
Trigger
RI/DFI
Digital I/O
Negative (-)
Digital OUT DFI or Digit
Open circui
t
5 V ±10%
voltage, typical
Short circuit
0.5 mA ±20%
current, typical
Breakdown
voltage, typical
Maximum current,
typical
The output may be driven to 5 V.
The Maximum current must not be exceeded.
The output will sink up to 1 mA
The Output Breakdown Voltage must not be exceeded.
Digital IN Trigger, RI or Digital IN
Open circuit
5 V ±10%
voltage, typical
Short circuit
t, typical
curren
Maximum voltage,
al
typic
VIH,typical
0.5 mA ±20%
C
5.5 VD
(V
2.4 V
)
IH
Voltage at which the sense is assured to be high.
typical
VIL,
0.8 V (V
)
IL
Voltage at which the sense is assured to be low.
terminals are referenced to chassis ground.
al OUT
PWS4000 Series Specifications and Performance Verification 5
Specifications
Table 4: Mains p
Parameter All models
Voltage Two ranges. Bottom-panel switch selectable.
Frequency
Fuse rating
nominal
ower characteristics
50/60 Hz
,
110 VAC setting: 5.0 A TH 250 V
220 VAC setting: 2.5 A TH 250 V
110 V: 110 VAC t
220 V: 220 VAC to 240 VAC (±10% )
o 120 VAC (±10%)
Table 5: Mechanical characteristics
Parameter PWS4205 PWS4305 PWS4323 P WS4602 PWS4721
Weight, nominal
Includes boots,
handles, and
shorting adapters
Dimensions,
nominal
Cooling method,
nominal
Required cooling
clearance
Construction
materials, nominal
16.0 lbs
(7.3 kg)
With boots and handle:
Height: 105 mm (4.15 in)
Width: 242 mm (9.52 in)
Depth: 384 mm (15.12 in)
Without boots and handle:
Height: 91 mm (3.57 in)
Width: 217 mm (8.55 in)
Depth: 362 mm (14.24 in)
Fan
Rear of instrument must be separated by at least 5 cm (2 in) from any airflow restrictions to assure adequate
cooling.
Bottom of instrument must have 1 cm (0.4 in) from any airflow restrictions. The protective boot maintains
the proper bottom c learance.
For rackmount configuration, follow the clearance requirements provided with the rackmount installation
instructions.
Chassis – Aluminum
Front Panel Plastics – PC/ABS blend
16.0 lbs
(7.3 kg)
16.0 lbs
(7.3 kg)
15.3 lbs
(7.0 kg)
16.0 lbs
(7.3 kg)
6 PWS4000 Series Specifications and Performance Verification
Specifications
Table 6: Enviro
Parameter All models
Temperature
Humidity
Altitude
nment performance
Operating: +0
Nonoperating: -20 °C to 70 ° C
Operating:
5% to 95% relative humidity (% RH) at up to 40 °C, noncondensing
Nonoperati
5% to 95% relative humidity (RH) at up to +40 ° C,
5% to 60% RH above +40 °C up to +70 C, noncondensing
Operating: 100% capability up to 2,000 meters
Nonoperat
°C to +40 °C
ng:
ing: Up to 4,000 meters
PWS4000 Series Specifications and Performance Verification 7
Specifications
Table 7: Keypad
Operation Key press
Display the instrument firmware version. Shift + 8
Display the internal temperature of the instrument. Shift + . + 1
Perform a factory r eset. All setups and lists are erased. Shift + . + 2
Activate the factory service port.
The factory service port provides no user functions.
Unlock the keypad.
special operations
Shift + . + 3
If the password used to lock the keypad is forgotten, enter
the four nu
keypad.
Cycling the instrument power also unlocks the keypad.
merical digits of the instrument name to unlock the
8 PWS4000 Series Specifications and Performance Verification
Performance Verification
This section contains performance verification procedures for the specifications
marked with the
verification
These procedures cover the PWS4205, PWS4305, PWS4323, PWS4602, and
PWS4721 mod
are testing.
procedures. (See Table 21 on page 20.)
symbol. Additional test equipment is required to complete the
els. Ignore checks that do not apply to the specific model you
Print the t
test results for your power supply.
NOTE. Completion of the performance verification procedure does not update the
stored time and date of the latest successful adjustment. The date and time are
updated only when the factory adjustment procedures are successfully completed.
The performance verification procedures verify the performance of your
instrument. They do not adjust your instrument. If your instrument fails any of
the performance verification tests, you should contact Tektronix service.
WAR N I
this product and any associated instrumentation. Although some instruments
and accessories are used with nonhazardous voltages, there are situations
where hazardous conditions may be present. This product is intended for use by
qualified personnel who recognize shock hazards and are familiar with the safety
precautions required to avoid possible injury. Before using the product, carefully
ad and follow all installation, operation, and maintenance information. Refer
re
to this manual for complete product specifications. Before performing any
maintenance, disconnect the line cord and all test cables. Operators of this
instrument must be protected from electric shock at all times. The responsible
body must make sure that operators are prevented access and/or insulated from
every connection point. In some cases, connections must be exposed to potential
human contact. Product operators in these circumstances must be trained to
protect themselves from the risk of electric shock. If the circuit can operate at or
above 1000 volts, no conductive part of the circuit may be exposed.
est record on the following page s, and use it to record the performance
NG. Observe all safety precautions listed in this manual before using
WAR N ING. Do not loosen any screw on this product. There are no user
serviceable components inside.
CAUTION. Use properly rated load wires. All load wires must be heavy enough not
to overheat when carrying the maximum short-circuit output current of the power
supply. If there is more than one load, then any pair of load wires must be capable
of safely carrying the full-rated short-circuit output current of the power supply.
PWS4000 Series Specifications and Performance Verification 9
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