Reliant EMC


DO Series Overview

Power Supplies of “DO” family with thyristors per-regulation 1 – 2 Quadrants was designed to ensure a good efficiency and also a similar output features of standard linear Power Supplies.
In fact, reading the technical features of our series "DO", you can not fail to notice the low output ripple and the speed of response to various stresses could be used Power Supply and it is possible to programmer it up to 50kHz (option T) sinusoidal upon DC level with power up to 40kW.
Versatile management command, both local and remote controls have the ergonomics of their strength allowing you to set all their functions in a simple and easy to understand even if they have been
placed in a test bench or in a cabinet rack.
DANA DO Double Regulation Power Supplies Flow Chart

Technical Data

Mains Input
115 or 230 or 400 Vac ± 10% 50-60 Hz
Line regulation
better than 50 ppm of output V max for the allowed input variation
Voltage and Current Output
adjustable, by a 10 turns potentiometer from “0” to max rated
Load regulation for constant V
from no load to full load better than 50 ppm
Load regulation for constant I
better than 100 ppm of I max from “0” to V max .
Ripple and noise
measured in V mode, under 50 ppm (rms) of V max each 1.000 W
Recovery time
better than 40µs within ± 1% of set voltage from no load to full load.
Remote programming and feed-back (GPAC)
Opto-insulated analog signal 0÷10Vdc
Linearity better than 0.3% Drift better than 1.5mV/°C
Reaction to remote programming (slew rate)
0,4 V / µs (1V / µs with option T)
better than 0.1% of max voltage, over 24 hours at 25°C ambient, after 20 minutes warm up.
Temperature coefficient
lower than 50 ppm/°C in “voltage mode”;
lower than 100 ppm/°C in “current mode”
Ambient temperature
work 0÷40°C
storage -10÷50°C
forced ventilation
DANA DO Double Regulation Power Supplie Front Panel

Front Panel Controls

Breaker switching equipment ON and OFF
Commands allowing to hold power supply in stand-by and to make it supply according to need while a LED shows selected function
P - slide switch enabling DC output in permanent mode (up to output voltage of 60 Vdc)
S - push-button to be used to avoid “DC” output when Power switch is on
V - A - OVP set up push-buttons when the Power Supply is in stand-by
OVP (Over Voltage Protection)
trimmer allowing to set up “hazard-limit” for the EUT, when picked it up inhibits Power Supply with an alarm LED lighting up
Alarm for over temperature of power circuit putting Power
Supply in stand- by with an alarm LED lighting up
V/A - slide switches to select voltage and current programming mode through the front panel potentiometers (Local) or a remote command between 0÷10 Vdc through the GPAC connector or PIB/RS
interface (option)
DC - slide switch to program the DC supply from the panel control (Local) or from a remote command through the GPAC or GPIB
Slide switches enabling the power supply to be programmed by an analog voltage (0÷10 Vdc) through the GPAC connector on the back or through an IEEE488 - RS232/485 interface (optional)
Section V
Potentiometer and display (with accuracy of 1.5%)
showing output voltage or, by means of Check button, programmed voltage.
LED of “voltage mode”
Alarm LED with output inhibition showing the absence of one phase in models with 3-phase mains input or available for an alarm of a parameter chosen by the customer
Section A
Potentiometer and display (with accuracy of 1.5%) showing output current or, by means of Check button, programmed current.
LED of “current mode”
GND GroundPlug
+/- Auxiliary Plug to be used as test point up to 5 A max

Bank Panel Controls

Remote Sense
Terminal block allowing to switch “remote sense” circuit control from power output plugs to remote sense, to recover a max voltage drop of 0,5 V for cable
“General Purpose Analog Control” connector to program remotely the Power Supply with 0÷10 Vdc analog optically isolated voltage for all functions, to read Voltage and Current proportional feed-back (0÷10 Vdc) and to enable “DC” output through a logic signal (0 - 5V)
+/- Power output plugs


interface to program the Power Supply with IEEE488/RS232 standard
interface to program the power supply with IEEE488/RS485 standard
reaction to remote programming up to 1 V / µs (50Khz)
Electronic sink
3-phase mains input, in models with output power under 2.400 W
DANA DO Double Regulation Power Supplies Model Chart
DANA DO Series Double Regulation Power Supplies Model Chart

The models in the table are available with voltage and output current on customer request.
N.B. * These models are not in standard dimensions


Order Example

DANA DO Series Double Regulation Power Supplies Order Example


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