Reliant EMC

Thyristors Regulation

DE Series



It is a method of regulation used when you have to get a good efficiency without having the problems
involving switching Power Supplies which could spread not controllable noise and ripple level similar to linear Power Supplies with spike frequency at grid frequency.
Schematically very simple offer, in addition to low prices, extremely stable and therefore particularly suitable for use in test of life for evidence of reliability and robustness of motors, resistors and more.
It is possible to program in local mode, through multi turn potentiometers, or in remote mode by analog signal 0 ÷ 10 Vdc and opto-insulated feed-back 0 ÷ 10 Vdc to check set output.

Thyristors Regulation AC/DC Power Supplies


Mains Input
115 or 230 or 400 Vac ± 10% 50-60 Hz
Line regulation
better than 0.05% of output V max for the allowed input variation
Output Voltage
adjustable, by a 10 turns potentiometer from “0” to max nominal V
Load regulation for constant V
from no load to full load better than 0.05%
Output Current
adjustable, by a 10 turns potentiometer from “0” to max nominal I
Load regulation for constant I
better than 0.1% of I max from “0” to V max
Ripple and noise
measured in V mode, better than 0.1% (rms) of V max each 1.000 W
Remote programming and feed-back (GPAC)
Opto-insulated analog signal 0÷10Vdc
Linearity better than 0.3% Drift better than 1.5mV/°C
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 Thyristors Regulation AC DC Power Supplie Front Panel
DANA Thyristors Regulation AC DC Power Supply 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 GPIB/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

Back 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
3-phase mains input, in models with output power under 2.400 W

DANA DE Series Model Chart
DE Series 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 Thyristors Regulation AC DC Power Supplie Order Example

3 year Warranty!


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