Page 1
XR SERIES II
2 kW to 8 kW Programmable DC Power Supply
Highest Power Programmable DC Power Supply
available in a
2U Package
M
P
E
AGNA-POWER
M
ELECTRONICS
www.magna-power.com
Page 2
M
E
P
XR SERIES II
Rugged Current-Fed Technology
M
P
E
AGNA-POWER
M
ELECTRONICS
Innovative and Scalable
Magna-Power Electronics XR Series combines the best of
DC power processing with microprocessor embedded control.
Magna-Power Electronics’ innovative power processing technology improves response, shrinks package size, and reduces
cost. XR Series power supplies are current-fed and are more
tolerant to abusive loads than conventional switching power
supplies. This technology allows the power supply to operate
under short-circuit conditions, open-circuit conditions, and
everything inbetween.
XR Series power supplies oer both master/slave paral-
lel and series operation. This enables two or more power
supplies to be placed in parallel for increased output current
or in series for increased output voltage. With master/slave
operation, power supplies operate at near equal voltage and
current.
XR Series power supplies can operate as a voltage source
or current source depending on the control settings and load
conditions. If the power supply is operating as a voltage
source and the load increases to a point beyond the current
command setting, the power supply automatically crosses
over to current mode control and operates as a current
source at that setting.
KEY FEATURES:
• Highest power programmable 2U DC power supply:
Up to 8 kW in a 2U package
• Wide voltage and current range:
0-16 Vdc to 0-1000 Vdc and 0-2 Adc to 0-375 Adc
• Wide range of input voltages as standard:
From 208 Vac to 480 Vac at 50 Hz, 60 Hz, and 400 Hz
• Load dependent air cooling, 6 kW and 8 kW models:
Variable speed fans proportional to loading
• 37-pin optically isolated user I/O circuitry standard:
No additional isolation circuitry necessary
• Front panel analog potentiometers:
Stepless rotary control
• High eciency operation:
Up to 88% eciency on select models
• RS232 interface standard with SCPI Commands:
GPIB, USB, Ethernet, RS485 interfaces optional
• Optional LXI-certied ethernet communications:
Embedded web-server
Attention to Power Quality
XR Series power supplies contain circuitry to work harmoniously with other power equipment. Step-start contactors
are used to keep inrush current below full scale operating
current. Filter components lower current harmonic content
emanating from the power supply and increase power factor
to levels beyond 90%. Every power supply is tested at 90%
to 125% nominal line to insure satisfactory operation even
under the worst line voltage conditions.
• OVT and OCT shutdown standard:
Mechanical contactors disconnect input mains
• Certied LabWindows/CVI, LabView, and IVI Drivers
• Programmable Output Modulation:
Emulates user-dened power proles
• Automatic Voltage/Current Crossover
• Front Panel Calibration
© 2010 Magna-Power Electronics Inc. • 39 Royal Road, Flemington, NJ 08822 • (908) 237-2200
www.magna-power.com
Page 3
XR SERIES II
Specications
M
P
E
AGNA-POWER
M
ELECTRONICS
Input
Nominal Voltage
3 phase, 3 wire + ground
1 phase, 2 wire + ground
(2 kW models only)
Frequency
Power Factor
Environmental
Operating Temperature
Storage Temperature
Temperature Coecient
Air Cooling
Physical
208 VAC, 3φ (operating range 187 - 229 VAC)
240 VAC, 3φ (operating range 216 - 264 VAC)
380 VAC, 3φ (operating range 342 - 418 VAC)
415 VAC, 3φ (operating range 373 - 456 VAC)
440 VAC, 3φ (operating range 396 - 484 VAC)
480 VAC, 3φ (operating range 432 - 528 VAC)
208 VAC, 1φ (operating range 187 - 229 VAC)
240 VAC, 1φ (operating range 216 - 264 VAC)
50 Hz through 400 Hz
Greater than 92% at maximum power
0 °C to 50 °C
-25 °C to 85 °C
0.04 / °C of maximum output current
Side air inlet, rear exhaust
Output
Ripple
Line Regulation
Load Regulation
Load Transient Response
Eciency
Stability
Isolation
Maximum Slew Rate
Bandwith
Analog Output Impedances
See Model Charts
Voltage Mode: ± 0.004% of full scale
Current Mode: ± 0.02% of full scale
Voltage Mode: ± 0.01% of full scale
Current Mode: ± 0.04% of full scale
2 ms to recover within ±1% of regulated output, with a
50% to 100% or 100% to 50% step load change
≥ 86% (See Model Charts)
± 0.10% for 8 hrs. after 30 min. warmup
Maximum input voltage to ground: ±2500 VAC
Maximum output voltage to ground: ±1000 VDC
User inputs and outputs: Referenced to earth ground
Standard Models:
100 ms for output voltage change from 0 to 63%
100 ms for output voltage change from 0 to 63%
With High Slew Rate Option:
4 ms for output voltage change from 0 to 63%
8 ms for output voltage change from 0 to 63%
Standard Models:
3 Hz with remote analog voltage programming,
2 Hz with remote analog current programming.
With High Slew Rate Option:
90 Hz with remote analog voltage programming,
60 Hz with remote analog current programming.
Voltage output monitoring: 100 ohm,
Current output monitoring: 100 ohm,
+10V Ref: 1 ohm.
Power
(kW)
2 kW
4 kW
6 kW
8 kW
Size (H” x W” x D”)
3.50 x 19 x 24 in (13.3 x 48.3 x 61.0 cm)
5.25 x 19 x 24 in (13.3 x 48.3 x 61.0 cm)
5.25 x 19 x 24 in (13.3 x 48.3 x 61.0 cm)
10.25 x 19 x 24 in (26.0 x 48.3 x 61.0 cm)
Rack
Units
2U
2U
2U
2U
Weight
45 lbs (20.41 kg)
47 lbs (21.32 kg)
48 lbs (21.77 kg)
48 lbs (21.77 kg)
Control Limits
Remote Sense Limits
Digital control inputs
and outputs limits
3% maximum voltage drop from output to load
Input voltage: 0 to 5 V
Output voltage: 0 to 5 V, 5 mA drive capacity
Experience you can rely on.
Our products have evolved by listening to our customers and working
with them to nd solutions to their problems. Our continual growth is
based upon our innovative engineering, superior manufacturing meth-
ods, and dedicated employees. Today, all engineering and manufactur-
ing is performed in Flemington, NJ.
Programming Levels and Accuracy of Full Scale
Remote Analog
Programming Accuracy
Digital
Programming Accuracy
Remote Analog
Programming Levels
Voltage
Set Point
± 0.50% ± 0.75% ± 0.50 % ± 0.75%
± 0.50% ± 0.75% ± 0.50 % ± 0.75%
0 - 10.0 V 0 - 10 .0 V 0 - 10.0 V 0 - 10.0 V
Current
Set Point
OVT
Set Point
OCT
Set Point
Monitoring Levels and Accuracy of Full Scale
Output Voltage Output Current
Remote Analog
Monitoring Accuracy
Digital
Monitoring Accuracy
Remote Analog
Monitoring Levels
Note: Specications are subject to change without notice. For three-phase congurations,
specications are line-to-neutral. Unless otherwise noted, input voltages and currents are
specied for three-phase congurations.
± 0.50% ± 0.75%
± 0.50% ± 0.75%
0 - 10.0 V 0 - 10.0 V
Page 4
XR SERIES II
M
M
Enhanced Front Panel Control
M
P
E
AGNA-POWER
M
ELECTRONICS
Standard Front Panel
XR models provide stepless analog control from front panel
potentiometers. With a simple conguration change, the
power supply can be programmed from the rear I/O connector or through software on one of the communication buses.
Standard Front Panel
FUNCTION KEYS:
MENU: Select function
V/I DIS: Displays voltage and current setting
CLEAR: Clear setting or reset fault condition
ITEM: Select item within function
TRIP DIS: Displays OVT and OCT setting
ENTER: Enter Setting
MOD E
POW ER
STAN DBY
I
O
PW R
Meters display voltage, current, over voltage
trip, over current trip
MEN U
ITE M
STAR T
V/I DIS
TRI P DIS
CLE AR
ENT ER
STO P
CTL
VO LTAGE
ALARMS:
LOC: Interlock
PGL: Extermal input beyond limits
PHL: Indicates a problem with the input voltage
THL: Indicates overheating
OVT: Shows over voltage protection has tripped
OCT: Show over current protection has tripped
Computer Control: C Version Front Panel
XR models utilizing the C Version front panel, XRC, only
allows control from the rear I/O connector or by RS232/GPIB/
USB/Ethernet communications. These models are intended
for process control applications where front panel controls
and displays are not required nor desired.
CONFIGURATION:
REM SEN: Indicates remote sense
INT CTL: Front panel controls enabled
EXT CTL: External controls enabled
ROTARY: Potentiometer voltage/current control
EXT PGM: External voltage/current control
REMOTE: RS232 control enabled
DC VOLTAGE
16.0
PGL
LOC
M
P
E
DC CURR ENT
375
PHL
THL
OVT
AGNA-POWER
ELECTRONICS
CTL
OCT
CU RR EN T
REM SEN
INT CTL
EXT CTL
ROTA RY
EXT PGM
REM OTE
CON FIGUR ATION
Energizes control circuits without
turning the main power on
MODES:
POWER: Indicates power output
STANDBY: Indicates control power only
C Version Front Panel
I
O
PW R
Energizes control circuits without
turning the main power on
Switches main power on and o
Sets voltage and current in rotary mode
M
P
E
AGNA-POWER
ELECTRONICS
Page 5
XR SERIES II
Models and Ratings
M
P
E
AGNA-POWER
M
ELECTRONICS
2 kW Models
Model
XR5-375 0-5 0-375 50 86 8.0 5.0 4.0
XR10-200 0-10 0-200 40 86 8.0 5.0 4.0
XR16-125 0-16 0-125 35 86 8.0 5.0 4.0
XR20-100 0-20 0-100 40 86 8.0 5.0 4.0
XR32-62 0-32 0-62 40 86 8.0 5.0 4.0
XR40-50 0-40 0-50 40 87 8.0 5.0 4.0
XR50-40 0-50 0-40 50 87 8.0 5.0 4.0
XR80-25 0-80 0-25 60 87 8.0 5.0 4.0
XR100-20 0-100 0-20 60 87 8.0 5.0 4.0
XR125-16 0-125 0-16 100 87 8.0 5.0 4.0
XR160-12 0-160 0-12 120 87 8.0 5.0 4.0
XR200-10 0-200 0-10 125 87 8.0 5.0 4.0
XR250-8 0-250 0-8 130 88 8.0 5.0 4.0
XR375-5.3 0-375 0-5.3 170 88 8.0 5.0 4.0
XR400-5.0 0-400 0-5.0 180 88 8.0 5.0 4.0
XR500-4.0 0-500 0-4.0 220 88 8.0 5.0 4.0
XR600-3.3 0-600 0-3.3 250 88 8.0 5.0 4.0
XR800-2.5 0-800 0-2.5 300 88 8.0 5.0 4.0
XR1000-2.0 0-1000 0-2.0 350 88 8.0 5.0 4.0
Note: Single phase input current: 16 Aac for 208/240 Vac input (2 kW models only)
Voltage
(Vdc)
Current
(Adc)
Ripple
(mVrms)
E.
%
Input Current (Aac)
208/240 V 380/415 V 440/480 V
4 kW Models
Model
XR10-375 0-10 0-375 40 86 15.0 9.0 8.0
XR16-250 0-16 0-250 35 86 15.0 9.0 8.0
XR20-200 0-20 0-200 40 86 15.0 9.0 8.0
XR32-124 0-32 0-124 40 86 15.0 9.0 8.0
XR40-100 0-40 0-100 40 87 15.0 9.0 8.0
XR50-80 0-50 0-80 50 87 15.0 9.0 8.0
XR80-50 0-80 0-50 60 87 15.0 9.0 8.0
XR100-40 0-100 0-40 60 87 15.0 9.0 8.0
XR125-32 0-125 0-32 100 87 14.0 9.0 8.0
XR160-24 0-160 0-24 120 87 14.0 9.0 8.0
XR200-20 0-200 0-20 125 87 14.0 9.0 8.0
XR250-16 0-250 0-16 130 88 14.0 9.0 8.0
XR375-10.6 0-375 0-10.6 170 88 14.0 9.0 8.0
XR400-10.0 0-400 0-10.0 180 88 14.0 9.0 8.0
XR500-8.0 0-500 0-8.0 220 88 14.0 9.0 8.0
XR600-6.6 0-600 0-6.6 250 88 14.0 9.0 8.0
XR800-5.0 0-800 0-5.0 300 88 14.0 9.0 8.0
XR1000-4.0 0-1000 0-4.0 350 88 14.0 9.0 8.0
Voltage
(Vdc)
Current
(Adc)
Ripple
(mVrms)
E.
%
Input Current (Aac)
208/240 V 380/415 V 440/480 V
6 kW Models
Model
XR16-375 0-16 0-375 35 86 22.0 13.0 11.0
XR20-300 0-20 0-300 40 86 22.0 13.0 11.0
XR32-186 0-32 0-186 40 86 22.0 13.0 11.0
XR40-150 0-40 0-150 40 87 22.0 13.0 11.0
XR50-120 0-50 0-120 50 87 22.0 13.0 11.0
XR80-75 0-80 0-75 60 87 22.0 13.0 11.0
XR100-60 0-100 0-60 60 87 22.0 13.0 11.0
XR125-48 0-125 0-48 100 87 21.0 13.0 11.0
XR160-36 0-160 0-36 120 87 21.0 13.0 11.0
XR200-30 0-200 0-30 125 87 21.0 13.0 11.0
XR250-24 0-250 0-24 130 88 21.0 13.0 11.0
XR375-15.9 0-375 0-15.9 170 88 21.0 13.0 11.0
XR400-15.0 0-400 0-15.0 180 88 21.0 13.0 11.0
XR500-12 0-500 0-12 220 88 21.0 13.0 11.0
XR600-9.9 0-600 0-9.9 250 88 21.0 13.0 11.0
XR800-7.5 0-800 0-7.5 300 88 21.0 13.0 11.0
XR1000-6.0 0-1000 0-6.0 350 88 21.0 13.0 11.0
Voltage
(Vdc)
Current
(Adc)
Ripple
(mVrms)
E.
%
Input Current (Aac)
208/240 V 380/415 V 440/480 V
8 kW Models
Model
XR20-375 0-20 0-375 60 86 29.0 17.0 15.0
XR32-250 0-32 0-250 60 86 29.0 17.0 15.0
XR40-200 0-40 0-200 60 86 29.0 17.0 15.0
XR50-160 0-50 0-160 70 87 29.0 17.0 15.0
XR80-100 0-80 0-100 80 87 29.0 17.0 15.0
XR100-80 0-100 0-80 80 87 29.0 17.0 15.0
XR125-64 0-125 0-64 120 87 29.0 17.0 15.0
XR160-50 0-160 0-50 125 87 28.0 17.0 15.0
XR200-40 0-200 0-40 120 87 28.0 17.0 15.0
XR250-32 0-250 0-32 140 87 28.0 17.0 15.0
XR375-21.3 0-375 0-21.3 200 88 28.0 17.0 15.0
XR400-20.0 0-400 0-20.0 220 88 28.0 17.0 15.0
XR500-16.0 0-500 0-16.0 240 88 28.0 17.0 15.0
XR600-13.3 0-600 0-13.3 280 88 28.0 17.0 15.0
XR800-10.0 0-800 0-10.0 320 88 28.0 17.0 15.0
XR1000-8.0 0-1000 0-8.0 380 88 28.0 17.0 15.0
Voltage
(Vdc)
Current
(Adc)
Ripple
(mVrms)
E.
%
Input Current (Aac)
208/240 V 380/415 V 440/480 V
XR 1000 - 8 / 480 + LXI
Series name
Output voltage Output current
Option Code
Input voltage
Options
Title Option Code
LXI TCP/IP Ethernet Interface (Internal) +LXI
Cabinet and Integration +CAB1, +CAB2, +CAB3
IEEE 488.2 GPIB Interface (Internal) +GPIB
USB Edgeport Interface (External) +USB
RS-485DSS Interface (External) +RS485
UID46: Universal Interface Device +UID46
208/240 Vac single-phase input (5 kW) SP
© 2010 Magna-Power Electronics Inc. • 39 Royal Road, Flemington, NJ 08822 • (908) 237-2200
Series
Name
www.magna-power.com
XR
TS
MS
MT
Front Panel
A: Analog
D: Digital
C: Computer
Blank: XR
Model Ordering System
Output
Voltage
See Tables See Tables
Output
Current
Voltage
208 SP
240 SP
208
240
380
415
440
480
Input
Option Code(s)
+LXI
+CAB1, +CAB2, +CAB3
+GPIB
+USB
+RS485
+HS
+UID46
SP
Page 6
M
E
P
XR SERIES II
Reliable Control Technology
Remote Interface Software
The Remote Interface Software ships with all XR Series
power supplies. The software provides the user with an easy
and intuitive method to operate a Magna-Power Electronics’
power supply with computer control. The Remote Interface
Software has six windows:
• Virtual Control Panel
• Command Panel
• Register Panel
• Calibration Panel
• Firmware Panel
• Modulation Panel
The Virtual Control Panel emulates the XR Series front panel, the Command panel programs and reads SCPI commands
with user friendly buttons, the Register Panel programs and
reads registers, the Calibration Panel enables calibration of
the digital potentiometers, the Firmware Panel enables the
program stored internal to the power supply to be upgraded,
and the Modulation Panel eases programming of modulation
parameters.
M
P
E
Isolated External I/O for Automation
Using the rear 37-pin I/O connector, the XR Series power
supplies can be completely controlled and monitored using
external signals. The voltage, current, over voltage trip, and
over current trip set points are set by applying a 0-10 Vdc
analog signals. Each diagnostic condition is given a designated pin, which reads 5 Vdc when high. Also, the power
supply features an external interlock, which when enabled,
allows the power supply to be tied in with other emergency
stop equipment. All these pins are isolated to earth-ground
as standard--no additional isolation circuitry necessary!
LXI-Compliant Embedded Ethernet
LXI is an instrumentation platform based on industry standard Ethernet technology designed to provide modularity,
exibility and performance to small- and medium-sized systems. LXI’s advantages are exemplied in its compact, exible
package providing high-speed I/O and reliable
measurements. These features meet the needs
of R&D and manufacturing engineers delivering electronics for the aerospace/defense,
automotive, industrial, and medical markets.
Certied to the LXI Standard (Class C), the XR Series Ethernet option includes an embedded web-server, allowing web
browser power supply control and monitoring from virtually
anywhere.
AGNA-POWER
M
ELECTRONICS
Power Source Emulation
Output modulation enables Magna-Power Electronics’
power supplies to emulate a variety of user-dened power
sources, such as Fuel Cells, Photovoltaic Arrays, Batteries, etc.
The power supplies follow an I-V curve programmed either
through Magna-Power’s Remote Interface Software (modulation panel), LabVIEW with certied NI LabVIEW drivers, or
through other programming means using SCPI commands.
© 2010 Magna-Power Electronics Inc. • 39 Royal Road, Flemington, NJ 08822 • (908) 237-2200
www.magna-power.com
Page 7
Interfaces
Side Panel
Rear Panel
Front Panel
XR SERIES II
FRONT PANEL
OPTIONAL IEEE-488
INTERFACE
JS1
JS4
JS3
JS1
JS5
JS3
RST LAN
JS2
1 2
OCTOVTTHLPHLPGLLOC
CTLCTL
REM SEN
INT CTL
EXT CTL
ROTARY
EXT PGM
REMOTE
POWER
STANDBY
MENU
V/I DIS CLEAR
ITEM TRIP DIS ENTER
START STOP
CURRENTVOLTAGE
DC VOLTAGE DC CURRENT
CONFIGURATON
MODE
PWR
ELECTRONICS
M
AGNA-POWER
B
3
INPUT
!
OUTPUT
NEG
A
C G ND
POS
JS1
JS3
0.234
3.469
0.328
19.000
1.000
6.312
0.250X1.000 SILVER PLATED COPPER BUS,
3/8-16 THREADED INSERT, QTY 2
AIR EXHAUST, BOTH SIDES
10-32 THEADED INSERTS, QTY 4
FRONT PANEL
REAR PANEL
OPTIONAL IEEE-488
INTERFACE
OPTIONAL ETHERNET
INTERFACE
JS1
JS4
JS3
JS1
JS5
JS3
RST LAN
1.250
JS2
1 2
OCTOVTTHLPHLPGLLOC
CTLCTL
REM SEN
INT CTL
EXT CTL
ROTARY
EXT PGM
REMOTE
POWER
STANDBY
MENU
V/I DIS CLEAR
ITEM TRIP DIS ENTER
START STOP
CURRENTVOLTAGE
DC VOLTAGE DC CURRENT
CONFIGURATON
MODE
PWR
ELECTRONICS
M
AGNA-POWER
B
3
INPUT
!
OUTPUT
NEG
A
C GND
POS
JS1
JS3
24.000 1.875
0.234
3.469
0.328
19.000
1.000
6.312
0.875
1.966
AIR INTAKE BOTH SIDES
0.250X1.000 SILVER PLATED COPPER BUS,
3/8-16 THREADED INSERT, QTY 2
AIR EXHAUST, BOTH SIDES
10-32 THEADED INSERTS, QTY 4
FRONT PANEL
REAR PANEL
SIDE PANEL
OPTIONAL IEEE-488
INTERFACE
OPTIONAL ETHERNET
INTERFACE
JS1
JS4
JS3
JS1
JS5
JS3
RST LAN
OPTIONAL IEEE-488
INTERFACE
JS1
JS4
JS3
Size Diagrams
M
P
E
AGNA-POWER
M
ELECTRONICS
MODE
POWER
STANDBY
PWR
MENU
V/I DIS CLE AR
ITEM TRIP DIS ENTER
START STOP
DC VOLTAGE DC CURRENT
OCTOVTTHLPHLPGLLOC
AGNA-POWER
M
ELECTRONICS
REM SEN
INT CTL
CTLCTL
CURRENTVOLTAGE
EXT CTL
ROTARY
EXT PGM
REMOTE
CONFIGURATON
JS1
JS4
OPTIONAL IEEE-488
INTERFACE
JS3
© 2010 Magna-Power Electronics Inc. • 39 Royal Road, Flemington, NJ 08822 • (908) 237-2200
JS1
RST LAN
OPTIONAL ETHERNET
INTERFACE
JS5
JS3
www.magna-power.com
Connector JS1
TERM PARAMETER TERM PARAMETER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
REF GND
REF GND
VREF EXT
TVREF EXT
VO2
+2.5V REF CAL
GND
POWER
THERMAL
INTERLOCK
CUR CTL
STANDBY/ALM
ALM
EXT CTL
RESERVE
RESERVE
START
CLEAR
STOP
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
REF GND
+10V REF
IREF EXT
TIREF EXT
IO2
VMOD
+5V
PGM LINE
STANDBY
PHASE LOSS
VOLT CTL
RESERVE
OCT
INT CTL
OVT
RESERVE
RESERVE
INTERLOCK SET
Connector JS2
TERM PARAMETER
12VO1REM-
Connector JS3
TERM PARAMETER
1
2
3
4
5
6
7
8
9
VO1REM+
NC
RX
TX
DTR
GND
DSR
RTS
CTS
NC
Page 8
M
E
P
XR SERIES II
Power Supply Applications
M
P
E
AGNA-POWER
M
ELECTRONICS
Automated Test Equipment (ATE)
High power density and isolated rear I/O make the XR Series
the ideal DC power source for rackmount systems. The
analog I/O port allows you to connect a programmable logic
controller or other external controls to set voltage, current,
trip points, and monitor all the power supply’s diagnostics
using industry standard +5 Vdc signals.
Automotive Drive Testing / Burn-in
Whether for developing hybrid / electric powertrains or
testing and burning-in electric motors, our DC supplies are
proven in the automotive industry. With high current capabilities, transient response, and robust safety features, our
power supplies are applied to a large number of automotive
applications.
Water Treatment, Electrolysis, and Chemical Processes
Low ripple, excellent controls, and high reliablilty make the
XR Series a solid choice for applications in electrodeioniza-
tion (EDI) and electrolysis. Our supplies can be found around
the world powering EDI modules. For hydrogen production, high eciency and advanced diagnostics make the XR
Series a smart choice.
Research at Universities and National Labs
Magna-Power Electronics’ products can be found in research
facilities, universities, and national laboratories around the
globe. Our wide range of output voltages, robust currentfed power processing technology, and committment to our
customers and their applications have dierentiated us from
the competition.
40
35
30
25
20
15
10
5
CURRENT (ADC)
0
10
IV characteristics for a typical photovoltaic array
Battery Charging
A temperature compensated battery charger for applications with lead acid batteries. Diode
D1, placed between the power supply and battery, blocks current from owing from the battery to the power supply. This eliminates any loading on the battery when the power supply
is o and prevents the battery from charging the power supply’s output capacitors. Remote
sensing should be applied across the battery terminals to compensate for the diode drop. By
setting the voltage and current to the bulk charge voltage and maximum charge current, the
power supply will initially charge the batteries in current mode control and then automatically
crossover to voltage mode control when the batteries reach the desired set point. The power
supply can be programmed for time dependent, sequential step operation to equalize and
oat charge the batteries after bulk charging.
50
40
30
20
VOLTAGE (VDC)
90
80
70
60
100
Power Source Emulation
Modulation enables the power supply to emulate dierent sources: such as batteries,
fuel cells, photovoltaic arrays, etc. This emulation is accomplished by programming the
output voltage or current to respond to an input variable using the Remote Interface
Panel or with SCPI commands. The gure on the left illustrates the programmed piecewise linear approximation for a typical photovoltaic array. Alternatively, an I-V curve can
be set using LabView using Magna-Power Electronics ceried Labview drivers.
110
Temperature copensated battery charger
© 2010 Magna-Power Electronics Inc. • 39 Royal Road, Flemington, NJ 08822 • (908) 237-2200
www.magna-power.com
Doc Rev C, 10/19/2010
Loading...