ITECH IT-M3900C | Bidirectional DC Source and Load
Sources and sinks power bidirectionally, returns energy to the grid, and simplifies dynamic testing in compact test systems.
- ✓ Voltage: up to 1500 V
- ✓ Current: up to 1020 A
- ✓ Power: ±12 kW
- ✓ Accuracy: ≤0.03 % + 0.03 % FS / ≤0.1% + 0.1 % FS
Bidirectional DC Power Supply up to 1,500 V and 12 kW
Programmable DC Source for Bidirectional Test Applications
The ITECH IT-M3900C Series is a programmable bidirectional DC power supply for tests with changing power-flow directions. Depending on the model, it provides up to 1,500 V, 1,020 A, 6 kW in 1U, or 12 kW in 2U. The wide-range output supports different voltage and current combinations within the available power range.
Dynamic Power Supply and Regenerative Energy Recovery
The IT-M3900C supplies DC power to the device under test and absorbs power when the direction of energy flow is reversed. The fast transition between source and sink current reduces overshoot during battery, DC-DC, and automotive testing, while absorbed energy is regeneratively fed back into the grid.
Programmable Test Profiles
CV/CC priority, adjustable output impedance, and programmable voltage, current, and power slew rates generate defined transients. Up to 10 million sequence points reproduce dynamic test profiles. Stored curves support selected requirements from LV123, LV148, DIN 40839, ISO 16750-2, SAE J1113-11, LV124, and ISO 21848; 10 V models are excluded.
Battery, PV, and Fuel Cell Simulation
Voltage, capacity, internal resistance, and state of charge can be parameterized for battery simulations. The optional BSS2000 software adds configurable battery characteristics and data import functions. PV and SAS models simulate I-V curves for static and dynamic MPPT testing, while FCS3000 enables single-channel fuel cell simulation.
ATE Integration and Protection Functions
Master-slave parallel operation increases the available power of the bidirectional DC power supply. USB, CAN, LAN, and digital I/O are integrated; GPIB and analog/RS-232 are optional. OVP, ±OCP, ±OPP, and OTP monitor electrical limits, while anti-islanding protection and automatic grid detection support regenerative operation.
Application Limits
The IT-M3900C Series is not intended for test applications in which advanced or combined electronic load modes are the primary requirement.
Alternative Products
For bidirectional DC test applications with lower power requirements, the ITECH IT-M3400 Series is suitable. For applications requiring higher system power, the ITECH IT6000C Series and the ITECH IT6600C Series are available as regenerative bidirectional DC power supplies.
Related Product Categories
Does the IT-M3900C Match Your Bidirectional Test Profile?
We review voltage, current, power, regeneration, dynamics, parallel operation, and interfaces with you to ensure the configuration fits your DUT and test system.
Variants
Specifications
| System concept | bidirectional programmable DC power supply with regenerative sink operation |
|---|---|
| Series voltage range | 10 V to 1,500 V |
| Series current range | model-dependent, -720 A to +1,020 A |
| Power | up to 6 kW in 1U or 12 kW in 2U |
| Wide-range output | different voltage and current combinations within the applicable power limit |
| Source operating modes | CC, CV, and CW |
| Sink operating modes | CC, CV, CW, and CR |
| Control priority | CC or CV priority |
| Output impedance | adjustable for simulating internal DC output resistance |
| Battery functions | charge and discharge testing and simulation of user-defined battery models |
| Dynamic curve simulation | up to 10,000,000 points |
| List function | programmable sequences for automated test procedures |
| PV I-V curve simulation | available for 85 V SAS and 150 V PV models |
| Master-slave parallel operation | power expansion by connecting multiple units in parallel |
| Integrated interfaces | USB, CAN, LAN, and digital I/O |
| Optional interfaces | GPIB and combined analog/RS-232 interface |
| Protection functions | OVP, positive and negative OCP and OPP limits, OTP, grid-failure protection, and anti-islanding protection |
| Grid connection | automatic grid-status detection |
Options & Accessories
| IT-E165A-250 | reverse-polarity protection unit, 750 V / 250 A |
|---|---|
| IT-E165A-400 | reverse-polarity protection unit, 750 V / 400 A |
| IT-E165A-500 | reverse-polarity protection unit, 900 V / 400 A |
| IT-E165B | anti-EMF unit for reverse-current protection, 1,200 V / 200 A |
| IT-E168/IT-E169 | fiber-optic interconnection kit for parallel operation of multiple units |
| IT-E155A | 1U rack-mount kit |
| IT-E155B | supplementary 1U rack-mount kit for use with IT-E155A |
| IT-E155C | supplementary 1U rack-mount kit for use with IT-E155A |
| IT-E176 | GPIB communication interface |
| IT-E177 | combined RS-232/analog communication card |
| BSS2000 | battery simulation software |
| SAS1000 | software for PV array and I-V curve simulation |
| FCS3000 | software for single-channel fuel cell simulation |
| IT system cabinet | system cabinet in 15U, 27U, or 37U |
| AC power cord, 5 m | mains connection cable for system configurations |
| USB cable | connection cable for USB communication |
| AC power cord | configuration-dependent mains connection cable |
| IT-E31220-OO | high-current cable, 120 A, 2 m, round terminal to round terminal |
| IT-E30615-OO | high-current cable, 60 A, 1.5 m, round terminal to round terminal |
| IT-E32410-OO | high-current cable, 240 A, 1 m, round terminal to round terminal |
| IT-E32420-OO | high-current cable, 240 A, 2 m, round terminal to round terminal |
| IT-E33620-OO | high-current cable, 360 A, 2 m, round terminal to round terminal |
| IT-E30110-BB | test lead, 10 A, 1 m, banana plug to banana plug |
| IT-E30110-AB | test lead, 10 A, 1 m, alligator clip to banana plug |
| IT-E30110-BY | test lead, 10 A, 1 m, banana plug to fork terminal |
| IT-E30320-YY | test lead pair, 30 A, 2 m, fork terminal to fork terminal |
| IT-E30312-YY | test lead pair, 30 A, 1.2 m, fork terminal to fork terminal |
| IT-E9003 | ITECH warranty extension for up to 3 years |
| IT-E9005 | ITECH warranty extension for up to 5 years |
Scope of Delivery
| Device(s) of the IT-M3900C-Series |
| 1 x Power cord |
| 1 x USB communication cable |
| 1 x Factory test repor |
| 1 x Operating manual |
Applications
| Testing of battery cells, battery modules, and battery packs |
| Charge, discharge, and simulation testing of batteries and supercapacitors |
| Testing of grid-connected inverters and power conversion systems |
| Testing of stationary solar battery energy storage systems |
| Testing of bidirectional onboard chargers, DC-DC modules, and other automotive electronics |
| Testing of small- and medium-power electric drives |
| Testing of electric drive systems for drones, power tools, and electric motorcycles |
| Testing of capacitors and supercapacitors |
Videos
Links & Downloads
Available Documents (Subject to Change)
Supplier
ITECH is one of the world's largest manufacturers of AC and DC power supplies. The group's diversified product portfolio includes battery testing and power supply test systems. The company's focus is on a competitive price-performance ratio.
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