ITECH IT-M3900C Bidirectional Programmable DC Power Supply

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ITECH IT-M3900C bidirectional programmable DC power supply
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Benefits of the IT-M3900C Series Bidirectional DC Power Supply and Regenerative Load

  • Bidirectional programmable DC power supply and regenerative electronic load in one.
  • Power up to ±12 kW.
  • Expand power with master/slave parallel connection.

ITECH IT-M3900C Bidirectional Programmable DC Power Supply

The ITECH IT-M3900C is a regenerative bidirectional programmable DC power supply that can also be used as a regenerative electronic load, to absorb the consumed energy and feedback cleanly to the grid. The high-efficiency energy feedback not only saves electricity consumption and heat dissipation costs, but also does not interfere with the operation of the power grid. The IT-M3900C provides high accuracy output measurement, high reliability, high safety, and abundant measurement functions.

  • Compact design, power up to 6 kW in 1U space, power up to 12 kW in 2U space.
  • Voltage range 10...1500 V, current range -720...1020 A, power range ±12 kW.
  • Wide range of output design, one unit can be used as multiple power supplies.
  • Bidirectional energy flow between the DUT and grid, seamless switching across quadrants.
  • With patent simple master/slave parallel connection, expand power while maintaining performance.
  • Efficient and environmentally friendly energy regenerative, effectively reducing the electricity and cooling costs.
  • CC and CV priority modes.
  • Adjustable output impedance.
  • Battery charging/discharging test and battery simulation, define the battery model.
  • Dynamic curve simulation function up to 10,000,000 points.
  • Built-in voltage curves comply with LV123, LV148, DIN40839, ISO-16750-2, SAEJ1113-11, LV124 and ISO21848 automotive standards (not for 10-V models).
  • Support photovoltaic I-V curves simulation function (only for 85-V models).
  • List function.
  • Support CC, CV, CP, CR in sink mode and CC, CV, CP in source mode.
  • Can simulate DC output internal resistance.
  • Multiple protection functions OVP, ±OCP, ±OPP, OTP, power failure protection, anti-islanding protection.
  • Automatic detection of power grid status to realize reliable grid connection function.
  • Pre-charge function, to prevent overshoot of DC loading current.
  • Standard build-in USB, CAN, Ethernet/LAN, digital-I/O communication interface, optional GPIB, analog, and RS232.

Model Overview

ModelVoltageCurrentPowerResolutionAccuracyHeightInterface
IT-M3901C-10-17010 V-120...170 A-1200...1700 W0.001 V/0.01 A≤0.03% + 0.03% FS/
≤0.1% + 0.1% FS		1UUSB, CAN, Ethernet/LAN,
digital-I/O port,
optional GPIB, analog, RS232
IT-M3903C-10-34010 V-240...340 A-2400...3400 W1U
IT-M3905C-10-51010 V-360...510 A-3600...5100 W0.001 V/0.1 A1U
IT-M3910C-10-102010 V-720...1020 A-7200...10200 W2U
IT-M3902C-32-8032 V±80 A±2 kW0.001 V/0.01 A1U
IT-M3904C-32-16032 V±160 A±4 kW1U
IT-M3906C-32-24032 V±240 A±6 kW1U
IT-M3912C-32-48032 V±480 A±12 kW2U
IT-M3902C-80-4080 V±40 A±2 kW1U
IT-M3904C-80-8080 V±80 A±4 kW1U
IT-M3906C-80-12080 V±120 A±6 kW1U
IT-M3912C-80-24080 V±240 A±12 kW2U
IT-M3902C-300-20300 V±20 A±2 kW0.01 V/0.001 A1U
IT-M3904C-300-40300 V±40 A±4 kW1U
IT-M3906C-300-60300 V±60 A±6 kW1U
IT-M3912C-300-120300 V±120 A±12 kW2U
IT-M3902C-500-12500 V±12 A±2 kW1U
IT-M3904C-500-24500 V±24 A±4 kW1U
IT-M3906C-500-36500 V±36 A±6 kW1U
IT-M3912C-500-72500 V±72 A±12 kW2U
IT-M3902C-800-8800 V±8 A±2 kW1U
IT-M3904C-800-16800 V±16 A±4 kW1U
IT-M3906C-800-24800 V±24 A±6 kW1U
IT-M3912C-800-48800 V±48 A±12 kW2U
IT-M3906C-1500-121500 V±12 A±6 kW1U

Overview ITECH Series IT-M3900B, C, D

  • ▸IT-M3900B power system: DC source, full sink/load and one-button switching, battery testing, regenerative.
  • ▸IT-M3900C: DC source, sink/load, regenerative.
  • ▸IT-M3900D: DC source.
Model (1)Model (2)Model (3)VoltageCurrentPowerSink/load modesBattery testResolutionHeight
B, CDB, CDBCDBCD
IT-M3901BCD-10-17010 V-120...170 A170 A-1200...1700 W1700 WCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--0.001 V/0.01 A1U
IT-M3903BCD-10-34010 V-240...340 A340 A-2400...3400 W3400 W1U
IT-M3905BCD-10-51010 V-360...510 A510 A-3600...5100 W5100 W0.001V/0.1 A1U
IT-M3910BCD-10-102010 V-720...1020 A1020 A-7200...10200 W10200 W2U
IT-M3902BCD-32-8032 V±80 A80 A±2 kW2 kWCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--0.001V/0.01 A1U
IT-M3904BCD-32-16032 V±160 A160 A±4 kW4 kW1U
IT-M3906BCD-32-24032 V±240 A240 A±6 kW6 kW1U
IT-M3912BCD-32-48032 V±480 A480 A±12 kW12 kW2U
IT-M3902BCD-80-4080 V±40 A40 A±2 kW2 kWCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--1U
IT-M3904BCD-80-8080 V±80 A80 A±4 kW4 kW1U
IT-M3906BCD-80-12080 V±120 A120 A±6 kW6 kW1U
IT-M3912BCD-80-24080 V±240 A240 A±12 kW12 kW2U
IT-M3902BCD-300-20300 V±20 A20 A±2 kW2 kWCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--0.01V/0.001 A1U
IT-M3904BCD-300-40300 V±40 A40 A±4 kW4 kW1U
IT-M3906BCD-300-60300 V±60 A60 A±6 kW6 kW1U
IT-M3912BCD-300-120300 V±120 A120 A±12 kW12 kW2U
IT-M3902BCD-500-12500 V±12 A12 A±2 kW2 kWCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--1U
IT-M3904BCD-500-24500 V±24 A24 A±4 kW4 kW1U
IT-M3906BCD-500-36500 V±36 A36 A±6 kW6 kW1U
IT-M3912BCD-500-72500 V±72 A72 A±12 kW12 kW2U
IT-M3902BCD-800-8800 V±8 A8 A±2 kW2 kWCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--1U
IT-M3904BCD-800-16800 V±16 A16 A±4 kW4 kW1U
IT-M3906BCD-800-24800 V±24 A24 A±6 kW6 kW1U
IT-M3912BCD-800-48800 V±48 A48 A±12 kW12 kW2U
IT-M3906BCD-1500-121500 V±12 A12 A±6 kW6 kWCC, CV, CP, CR
CC+CV, CV+CR, CR+CC,
CC+CV+CW+CR;
one button switch power supply/load		CC, CV, CP, CR-yes--1U

Accuracy - all models: ≤0.03% + 0.03% FS/≤0.1% + 0.1% FS.
Interfaces - all models: USB, CAN, Ethernet/LAN, digital-I/O port, optional GPIB, analog, RS232.

CC = constant current, CV = constant voltage, CP (also CW) = constant power/watt, CR = constant resistance.

Datasheet_ITECH_IT-M3900C_en.pdf