DOKF Series
Sequence Function Installed High Speed Response Bipolar Power Suppies
Four-quadrant bipolar power supplies are developed up to followings.
DOKF series are four-quadrant power supplies possible to source and sink current. They can be applied widely according to the usage from transient response test to various evaluation tests as they realize high speed response of DC to 120kHz (at constant voltage mode) and can generate basic waves such as sine wave, rectangular wave and programmed waves by embedded function generator. And, as they provide also the high resolution sequence function as standard, you can program output patterns in detail. Moreover, as their generation of wave and setting sequence can be made all with the simplified operation on the front panel, you can make full use of various functions easily.
Feature&Outline
Superior visibility and operability by using color liquid crystal display.
High speed of DC to 120kHz is realized.
Four-quadrant behavior able to source and sink current.
It is possible to generate non-distortional wave such as sine wave, rectangular wave.
It is possible to set and operate high performance sequence in 1024 steps.
There are 2 modes of DC and AC+DC and each of them can be set individually.
2 modes operation of CV (constant voltage) and CV (constant current) are applicable.
It is possible to connect maximum 3 power supplies in parallel (synchronized trigger) by coinciding accuracy of frequency (synchronized clock) in synchronized operation.
GPIB, USB and RS-232C interface are equipped as standard.
It is possible to output voltage/current in 16 bits and programmed waves of resolution of 1024 in one cycle. (optional control software)
Major Applications
To drive capacitive loads such as capacitor.
To drive inducible loads such as coils and transformers.
Tests of various motors.
Evaluation of solar cell panel related equipments such as power conditioners.
Voltage fluctuation tests for automotive electrical components. ETC.
Specification
Basic Wave Generation Function
DOKF is equipped with a built in function generator that produces basic waves such as sine, rectangular and triangle waves. Frequency range can be set between 0.01Hz and 120kHz. Easy adjustments / edition of amplitude, initial phase (for sine wave), phase shift (for sine wave), and duty ratio (for rectangular / triange wave) are possible. DOKF has special feature of “soft start” and “soft stop” which enable to program initial rise and fall characteristics of the output.
Sequence functions
DOKF is equipped with sequence function that can program parameters such as step length, step amplitude ramp, DC voltage and current ramping, AC voltage and current ramping, frequency sweep, AC superposition, step jump, and jump times. These useful functions help to program the desired waves in very flexible manner, resulting to support efficient laboratory and research works.
・Step setting length 0.1ms to 1000h (resolution of 0.1ms)
・Maximum 1,024 steps per program.
・Maximum 64 programs can be stored in memory for each CC / CV operation
・Program repeat can be set by “endless repeat” or “1 to 10,000 times”
・Multiple programs can be converted to activate
Measurement functions
DOKF is equipped with measurement function that can measure DC value, AC RMS value, and Max / Min value, likewise, it is possible to automatically measure wide range bandwidth from DC to 120kHz. There are 4 parameters which are simultaneously displayable, each of these parameters are individually programmable. As this measurement is standard feature, no option needs to be purchased. This sophisticated feature will reduce time for editing output waves and bring up work efficiency.
Synchronized Operation
Frequency accuracy of plural power supplies coincides by using the synchronized clock (10MHz) function. And time accuracy of sequence coincides too. Plural power supplies can output at the same time by using the synchronized trigger function. (Delay of Output ON of the synchronized master unit and synchronized slave units is 0.5μs and smaller.) It is able to output the same wave at the same time mostly by using both synchronized clock function and synchronized trigger function. (In case of same setting.) Each phase difference can be set only for sine wave.
Others;
Protection Function (Cut-off, Individually Settable Limiter Protection), Key Lock Function and Switching CV / CC, Memory Function, these are installed as standard.
Operability
Options
-LMs()
Master-slave Control (parallel operation)
Maximum 3 units including master unit are hooked.
(Code in brackets () is “m” for the master unit and “s” for slave units. Please order required number of units. Every master unit and slave units are exclusive use. When change the combination of master-slave, they should be readjusted in our shop.)
-LRa
Brackets for Mounting on Rack
Brackets to lock the front panel in 19 inches rack specified EIA are equipped.
Dimension of the front panel is modified in case attached. Please consult our sales staff.
(It is impossible to support the main unit only with these brackets. Please utilize always a sole plate or angle bars to support the unit weight.)
-LCk
CC-Link Interface Board
It enables digital remote control via net work of CC-Link.
We may accept optimization for specific network such as Device NET. EtherCAT.
Please inquire our sale branch for details.
