Sorensen LH300-1 Data Sheet

Powerful Solutions

L Series - Introduction

37

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90-375 Watt, Benchtop
Linear Power Supplies

T

he L Series is a family of linear

DC power supplies designed for
benchtop and portable applications.
The family comprises fourteen models;
outputs range from 0-8V to 0-300V at
power levels from 90W to 375W. The
supplies may be used as either voltage
sources or current sources. Features
such as isolated outputs, series/parallel
operation, and tracking operation
provide the flexibility for a variety
of applications.

♦♦

Constant Voltage/Constant Current

Operation

The power supplies may be operated as

either precisely regulated voltage

sources or current sources. Crossover

between modes is automatic, dependent

only on load demand. Front panel LEDs

indicate operating mode.

♦♦

Series/Parallel Operation

Multiple power supplies may be

connected in series to extend the output

voltage range. The LS and LT Series

have the capability to operate outputs in

parallel for increased current range.

♦♦

3½ Digit LED

LED displays are provided for each
adjustable output. The LM and LH
Series have two separate displays, one
each for voltage and current. The LS
and LTSeries display is switch-selec­table between voltage and current.

♦♦

Universal AC Input

The AC input is externally switch-selec­table for 100V/120V/220V/ 240V at
50/60 Hz

Features

♦♦

CE Mark (excluding LH Series)

♦♦

1 Year Warranty

L Series - Specifications

38

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OUTPUT

Voltage and Current

Model Voltage Current

LH 8-30 0-8 0-30
LM 18-10 0-18 0-10
LS 18-5 0-18 0-5
LT18-5 0-18 0-5
LH 18-20 0-18 0-20
LS 30-3 0-30 0-3
LT30-3 0-30 0-3
LM 30-6 0-30 0-6
LH 35-10 0-35 0-10
LM 60-3 0-60 0-3
LH 60-6 0-60 0-6
LH 75-5 0-75 0-5
LH 110-3 0-110 0-3
LH 300-1 0-300 0-1

* LM, LS and LT series are CE marked.

Constant Voltage Mode

Ripple (Bandwidth 5 Hz to 1 MHz):

<1.0 mV RMS

Line Regulation:<0.01% + 3 mV

(LTmodels used in series <0.01% + 5 mV)

Load Regulation:See table

(LTmodels in series operation <

300 mV)

Transient Response:<100 µs for 50% load

change, 0.5Aminimum load

Temperature Coefficient: <300 PPM/°C

Constant Current Mode

Ripple: <3 mARMS; LH Series

< 5 mARMS; LH 8-30 < 10 mARMS

Line Regulation:<

0.2% + 3 mA

Load Regulation:<

0.2% + 3 mA;

LH models <0.2% + 5 mA

INPUT

Voltage and Frequency:

100V/120V/220V/240V, ±10% (externally
switch-selectable), 50-60 Hz

GENERAL

Operating Temperature: 0°C to 40°C
Storage Temperature: -10°C to 70°C
Operating Humidity: <80% RH,

non condensing

Storage Humidity: <70% RH
Isolation Voltage:±300 VDC or peak AC,

either output lead to chassis ground

Display Type:3½ digit LED
Display Accuracy: ±0.5% of reading +

2 digits

Display Parameters:LM/LH models have

separate displays for voltage and current;
LS/LTmodels have a single display for
voltage and current (switch-selectable) on
each adjustable output; two display ranges
for current on LS models

Indicators: LH/LM/LS models: CV and CC

LEDs; LTmodels: CV, CC, parallel mode
and overload (5V output) LEDs

Output Termination: Front panel binding

posts, rated <10A; LH 8-30 and LH 18-20
provide an additional rear panel terminal
block

Regulatory Compliance:CE Mark (does

not include the LH Series)

Dimensions
LH:

5.7” (144 mm) H x 10” (254 mm) W x

17.6” (419 mm) D

LM: 5.7” (144 mm) H x 10” (254 mm) W x

13.7” (335 mm) D

LS: 5.7” (144 mm) H x 5” (127 mm) W x

11.2” (284 mm) D

LT: 5.7” (114 mm) H x 10” (254 mm) W x

13.7” (335 mm) D

Weight:See table

ACCESSORIES

One set of test leads for each output (except
LH 8-30 and LH 18-20), grounding strap for
each output, AC input line cord

LS SERIES

Analog Programming:Full scale remote

programming of output voltages and/or
current by a 0-10V control signal varies the
output proportionally from 0 to 100%

LT S ERIES

5V, 3A Fixed Output

Voltage:5V ± 0.25V
Current: 3A (foldback current limit)
Ripple: <

2 mV RMS

Line Regulation:<5 mV
Load Regulation:<10 mV

Operating Mode-Adjustable Output

Independent: Two independent and isolat-

ed outputs continuously adjustable, 0 to
100% of rating

Series: Master/slave configuration with a

single or dual polarity output continuously
adjustable by the master control
LT18-5: 0-36V, 0-5A; LT 30-3: 0-60V, 0-3A

Parallel:Master/slave configuration with a

single output continuously adjustable by the
master control LT 18-5: 0-18V, 0-10A;
LT30-3: 0-30V, 0-6A

Slave Tracking Error:<0.5% + 10 mV of the

master output voltage

Powerful Solutions

L Series - Table Data

39

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odel

oltage

C

Current

C

oltage

oad

n

g

5

0to

80

t

o

5<

5

/5.

5

S

30-3

0to 3

00

t

o

3<

31.0/5.0

18-10

0to to10

5

23.5/11.5

30-6

0to 3

00

t

o

6<

5

23.5/11.5

6

0-3

0to 6

00

t

o

3<

5

23.5/11.5

8-30

0to 8

0to 3

5

40.8/18

5

18-20

0to

80

t

o20

5

40.8/18

5

35-10

0to 3

0

5

40.8/18

5

60-60to 6

00

t

o

6<

5

40.8/18

5

75-50to

50

t

o

5

40.8/18

5

10-3

0to10

0to 3

5

29.8/13

5

300-1

0to

300

0to

5

29.8/13

5

T

18-5

0

8

(

50

5

(

3<

%

5

m

23.5/11.5

30-3

0to

30

(

50

o

3

(

3<

5

23.5/11.5

M

LS18­L

L

to 1

VD

2ea);

2ea);

Output Power

L

Regulatio

eight

lb/k

AD

0.02%+

0.01%+

0.01%+

to

2ea);

t

2ea);

to1

0.02

0.02%+

0.01%+

0.01%+

0.01%+

0.01%+

0.01%+

0.01%+

0.01%+

0.01%+

+

V

.

12.1

.

.

.
.
.

0.01%+

.

L Series - LS, LT, LM, and LH Cases

40

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11.11 (282)

Side View

5.00 (127)

5.67 (144)

FINE COARSE

C.C.

POWER

ON OFF

-

AMPS COARSE

C.V.

FINE

GND

+

POWER

18.00

SUPPLY

VOLTS

LS 18-5

CURRENT

HI

LO

VOLTAGE

AMPS

0-18V, 0-5A

Front View Rear View

Dimensions in inches (millimeters)

FREQLINE FUSE POWER

50Hz
60Hz

120V

100V

250V

T2.5A

190W
230VA

PROGRAMMING

220V100V

120V 240V

OR REMOVE WIRE

DEPRESS TAB TO INSERT

INPUT

AC LINE SELECT

PAR

SLAVE

SERSER PAR

OUTPUT

SLAVE

SER

MASTER

MASTER

PAR

INPUT

0-10V

PROGRAMS

MANUAL
FOR SETUP

REFER TO

FULL RANGE

.38 (9)

240V 250V

220V T1.25A

MAX

LS Series

13.70 (348)

Side View

10.01 (254)

5V FIXED 3A

C.V. 5V3A

-

GND

C.C.

+

TRACKING MASTER

POWER
SUPPLY

VOLTAGE

OVER
LOAD

AMPS

VOLTS

CURRENT

VOLTS

PARALLEL

INDEP.

SERIES

30.0

LT 30-3

5.67 (144)

+-

0-3A

0-30V,

POWER

ON OFF

C.V.-C.C.

PAR.

SLAVE

GND

AMPS

CURRENT VOLTAGE

30.0

LABORATORY DC POWER SUPPLY

0-30V,

0-3A

+

Front View Rear View

220V~240V 3A

AC SELECTOR

LO

100V~120V

120V

100V

6A

HI

240V

220V

.38 (9)

LT Series

13.70 (348)

Side View

18.00

VOLTS

LM 18-10

FINE COARSE

SUPPLY

POWER

5.67 (144)

LABORATORY DC POWER SUPPLY

COARSEFINE

10.00

AMPS

10.01 (254)

GND

+

0-3A

VOLTAGE

C.C.

C.V.

-

OFFON

POWER

CURRENT

0-30V,

Front View Rear View

AC SELECTOR

120V 240V

.38 (9)

3A

6A

HI

220V

100V~120V

LO

100V

220V~240V

LM Series

17.60 (448)

Side View

110.0

FINE COARSE

POWER
SUPPLY

VOLTS

LH 8-30

COARSEFINE

3.00

AMPS

LABORATORY DC POWER SUPPLY

10.01 (254)

VOLTAGE

GND

0-30V, 0-3A

-

ON OFF

POWER

+

C.C.

CURRENT

C.V.

5.67 (144)

Front View

Rear View: 35V to 300V Models

.38 (9)

AC SELECTOR

120V 240V

220V~240V

100V~120V

100V

LO HI

6A
3A

220V

LH Series

AC SELECTOR

240V120V

3A6A220V~240V

100V~120V

LO

100VHI220V

OUTPUT

S+

S-

-

+

GND

-

Rear View: LH 8-30 & LH 18-20