TTI PDS20-18, PDS20-36, PDS36-10, PDS36-20, PDS60-6 User Manual

REGULATED DC POWER SUPPLIES

GP IB

OPTION

Regulated DC Power Supplies

PDS SERIES

With compliments

Helmut Singer Elektronik

www.helmut-singer.de [e-mail]
fon [phone] fax [phone]
Feldchen 16-24 D-52070 Aachen Germany

20V / 18A, Digital meter

PDS20-18

20V / 36A, Digital meter

PDS20-36

36V / 10A, Digital meter

PDS36-10

36V / 20A, Digital meter

PDS36-20

60V / 6A, Digital meter

PDS60-6

60V / 12A, Digital meter

PDS60-12

120V / 6A, Digital meter

PDS120-6

Available from:

OUTLINE

The PDS Series are CE-certified Regulated DC Power
Supply units which comply with Power Supply
Harmonics Current Regulations IEC1000-3-2, and a
power factor of 95% (typical) is cleared. These models
feature high reliability and various types of protection,
and can be used as a power supply for reliability tests,
endurance tests, aging and other electronics parts
tests.
By employing a unique switching and dropper circuit
systems, the output noise is maintained at a minimized
level.The input AC voltage is possible from 90 to 246
volts without any modification. Furthermore, these
models are designed in a smaller size and a lighter
weight compared to conventional models.

Thurlby Thandar Instruments Ltd. Glebe Road, Huntingdon, Cambs.
PE29 7DR U.K. Tel: [phone] e-mail: [e-mail]

Web: www.tt i -t est.com or www.tti.co.uk

PDS20-18
PDS36-10

PDS60-6
PDS60-12
PDS120-6

RS-232C

OPTION

PDS20-36
PDS36-20

76

REGULATED DC POWER SUPPLIES

PDS SER ES

REGULATED DC POWER SUPPLIES

PDS SERIES

FEATURES

Complies with Power Supply Harmonics Current Regulation,
and a Power Factor of 95% (typical)

The PDS Series comply with Power Supply Harmonics Current
Regulations (IEC1000-3-2) as well as "Home Appliance and
General-Purpose Products Harmonics Suppression Control
Guidelines", and never affect the AC supply due to cur rent
harmonics. Fur thermore with a built-in active smoothing filter, a
resulting power factor of 95% (typical) is cleared.

Satisfying CE Mark Certification Requirements

These models satisfy Low-Voltage Standards (IEC1010) and EMC
Standards Requirements.

Series/Parallel Operation

When these models are connected in series, the resulting output
voltage is increased. And when they are connected in parallel, the
resulting output current is increased. For more convenience,
when a master-slave system is used, either a series drive or a
parallel drive operation can be perfor med by a single unit in order
to control the output of all of the other units.
(A master-slave system is possible with up to 3 units in parallel
mode, and up to 2 units in series mode.)

Voltage/Current Simultaneous Digital Display

The bright and easy-to-see displays with 7-segment red LEDs are
designed to display the voltage and current values digitally at the
same time.

Compact, Lightweight Design

When compared with the conventional PD-A Series, the weight is
reduced to 1/2 to 1/3. It can more easily be carried from door to
door than before.

Various Protection Functions

For protection, various protection functions are provided including
OVP (over-voltage protection), OHP (over-heating protection) and
OCP (over-current protection). When a pr otection circuit is
engaged, the power switch is automatically turned of f.

Board-Type Options for External Control

External control is possible using optional board interface. Since a
board can be mounted inside the unit, no extra mounting space is
required. For external control, thr ee types of options ar e available

-- analog (voltage/resistor), GP-IB and RS-232C.

Worldwide AC Voltage Input Design

A wide range of AC power voltages can be input between 90 V and
246 V. Each model is ready to accept worldwide power sources
without switching over the voltage selector.

Voltage/Current Preset (3 points)

The frequently used output values for voltage and current can be
stored in the memory for up to 3 points for each value. The preset
values can be recalled with a touch of a button, making possible
the switching of the output value more quickly.

Single-Dial Control Design

Designed with easy operation in mind, the operation conditions
can be set at a press of the push button switch, while all the setup
values can be changed using the rotar y encoder control.
Especially for output voltage and current, high accuracy control is
possible in 10 mV and 10 mA steps respectively. Further mor e, the
variable speed of the control knob can be switched between
SLOW and FAST.

Key Lock Function

A key lock function is provided to fix the setup values for
inhibiting the operation on the front control panel. This is
convenient when long-term energization is required. Also, it is not
necessar y to have to worr y about mis-operation by others if you
leave it on your desk while the experiment is continuing.

With compliments

Helmut Singer Elektronik

www.helmut-singer.de [e-mail]
fon [phone] fax [phone]
Feldchen 16-24 D-52070 Aachen Germany

Optional Accessories

GP-IB Interface Card : IF-30GP
RS-232C Interface Card : IF-30RS
Analog Card : IF-30AN
Rack Mount Adapter : RK-605E (EIA size)

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REGULATED DC POWER SUPPLIES

SPECIFICATIONS

Model PDS20-18 PDS20-36
Output

Output voltage range (V) 0 - 20 0 - 20
Output current range (A) 0 - 18 0 - 36
Rated output power (W) 360 720
Output terminal Front & Rear Rear

Voltage regulation characteristics

Line regulation 0.005% +1 mV (for ± 10% source voltage fluctuation)
Load regulation 0.005% +2 mV (for 0 to 100% fluctuation)
Ripple /noise, p-p (By 20MHz Scope) 30 mVp-p
Ripple /noise, rms (5 Hz to 1 MHz) 1 mVrms 1.5 mVrms
Transient response (typ.) 100μsec
Temperature coefficient (typ.) ± 100 ppm/°C
Rise time Full load / no load 100msec / 100msec
Fall time Full load / no load 150msec / 1000msec

Current regulation characteristics

Line regulation 5mA 10mA
Load regulation 5mA
Ripple noise, rms (5 Hz to 1 MHz) 10mA 10mA
Temperature coefficient ± 100ppm/°C

Display

Voltage display, accuracy
Current display, accuracy
In constant voltage/ current operation CV LED on/ CC LED on

Output signals

Alarm signal output Open collector, active Low Operation functions

Operation function

OVP key Displays OVP circuit operating voltage on front
KEYLOCK (LOCAL) key Locks keys and knobs (except POWER switch).
PRESET 1 - 3 keys Used with MEM key to memorize three output
MEM key Used with PRESET keys to memorize three output
FAST/SLOW key Changes output voltage and current setting speed.
ON/OFF control Enabled with input contact signals.
POWER switch shut-down Enabled with input contact signals.
Output voltage remote sensing Compensates for 1 V voltage drop on single side.

Protection

Over voltage protection (OVP) POWER switch off at setting value
Over current protection (OCP) POWER switch of f at setting value
Overheat protection (OHP) POWER switch off at setting value
Soft OVP (OVD) Set from external controller in remote control mode.

Environmental request

Operating temperature / humidity range 0 to 40 °C / 30 to 80 % RH
Stocking temperature / humidity range –20 to 70 °C / 20 to 80 % RH
To-GND voltage ± 250 VDC
Cooling method Fr ont air intake type forced air cooling with

Power source

Input voltage AC 90 to AC 246V, 50/60 Hz without setting change.
Power factor (typ) 95%
Power consumption (typ) 560 W 1100 W
Power efficiency (typ) 65% 65%

Dimensions / Weight

Dimensions
Maximum dimensions
Weight (approx.) 6.3 kg 7.2 kg

Options

Analog I/O board V/I controlled by external voltage or resistance.
GP-IB interface board V/I set/read, Output ON/OFF, AC shout down.
RS-232C interfaceboard V/I set/read, Output ON/OFF, AC shout down.

Output capacity extension Parallel connection control : Master-slave system,

(W ¥ H ¥ D) mm 210 × 124 × 405

(23±5°C) 3 1/2 digits LED, 0.1% rdg ± 2 digits, 10mV accuracy

(23±5°C) 3 1/2 digits LED, 0.5% rdg ± 2 digits, 10mA accuracy

(W ¥ H ¥ D) mm 210 × 141 × 465.5

78

REGULATED DC POWER SUPPLIES

PDS SER ES

REGULATED DC POWER SUPPLIES

PDS SERIES

PDS36-10 PDS36-20 PDS60-6 PDS60-12 PDS120-6

0 - 36 0 - 36 0 - 60 0 - 60 0 - 120
0 - 10 0 - 20 0 - 6 0 - 12 0 - 6

360 720 360 720 720

Front & Rear Rear Front Front Front

1 mVrms 2 mVrms

1mA 5mA 1mA 5mA 1mA

5mA 10mA 5mA 10mA 5mA

(5ms one pulse)

panel, which is variable between 10 and 110% of F.S.
Also removes remote control.
voltages and currents.
voltages and currents.

POWER switch off when soft OVP is active.

fan motor Insulation resistance

520 W 1050 W 520 W 1050 W 1050 W

70% 70% 72% 72% 72%

6.3 kg 7.2 kg 6.3 kg 7.2 kg 7.2 kg

up to 3 units / Series connection control: Master-slave system, up to 2 units

79

210 × 124 × 405

210 × 141 × 425.5

Available from:

Measurably better value

Thurlby Thandar Instruments Ltd. Glebe Road, Huntingdon, Cambs. PE29 7DR U.K.
Tel: [phone], Fax: [phone], e-mail: sales@tt i-test.com
Web: www.tt i-test.com or www.t ti.co.uk