Bidirectional
Programmable DC Power Supply
biTRITON-B
TRBA Series
Product Introduction
TRBA series is a bidirectional programmable DC power supply with dual quadrant, integrating bidirectional power supply and regenerative load to supply and absorb current, so as to save the power consumption and reduce the space heat dissipation, which can greatly reduce the test cost. TRBA series provides high precision measurement and multiple testing functions, can also be configured with photovoltaic simulation, battery simulation and other software to help users realize accurate and efficient testing in multiple scenarios.
Application Fields
- ■ Energy storage applications, such as outdoor energy storage, UPS etc.
- ■ Motor drive test applications, such as inverters, drives, motor controllers, etc.
- ■ Battery-driven equipment, such as electric tools, electric vehicles, drones, etc.
- ■ New energy vehicle field, such as vehicle inverters, circulation pumps, automotive electronics, etc.
- ■ Low and medium power motors, DC-DC modules, etc.
Main Features
- ■ Power Range: 2.5kW/5kW/7.5kW
- ■ Voltage: 80V; Current: ±55A/±110A/±170A
- ■ Small size and high power density, integrating 2500W in 1U height and half 19-inch width chassis
- ■ Two quadrants seamless switching, the current between the DUT and the grid flow bidirectional
- ■ Battery simulation, SEQ test, Charge/Discharge test supportable
- ■ CC, CV, CR and CP mode
- ■ Supporting PV matrix I-V curve simulation function (optional)
- ■ CC/CV priority
- ■ Adjustable voltage and current slew rate
- ■ 3.2-inch HD color screen to display information
- ■ LAN/RS232/RS485/CAN as standard
- ■ Modbus-RTU/CAN open/SCPI standard protocol supportable
Seamless switch between source and load to regenerate energy
With the integration of power supply and regenerative load, TRBA series bidirectional power supply can be converted continuously seamlessly between the output and absorbed current, effectively avoiding voltage or current overshoot. Under load mode, TRBA series can not only provide external power, but also absorb power, and return electric energy to the grid cleanly, the regenerative efficiency up to 90%. It is widely used in lithium battery, UPS, BOBC and other equipment testing.
PV Cell Simulation (Optional)
With the characteristics of accurate measurement, high stability, fast response speed, TRBA series DC power supply with PV Cell Simulation can accurately simulate the I-V, P-V curve of the solar cell matrix. After setting Vmp, Pmp and other parameters, it can generate reports in compliance with regulations, which is used to test the static and dynamic maximum power tracking efficiency of PV inverters, and also can provide support for system simulation and core equipment testing of microgrids, distributed photovoltaic and other power systems.
Battery Simulation
TRBA series with battery simulator software to meet the user's needs for different types of battery simulation, and improve the test efficiency. Battery simulator software has 7 standard battery model libraries, users only need to select the corresponding battery type, configure the basic capacity and protection parameters, the software can quickly generate the corresponding type of battery characteristic curve;And there are 2 types of custom battery characteristic curve, engineers can be based on the actual measurement of the battery curvedata, import the data into the software and carry out simulation.
Wide range output, One can be as multiple
TRBA series bidirectional DC power supply adopts a wide rangedesign. A single power supply can output a wider range of voltageand current under the rated output power, satisfying engineers' test application scenarios for products of various voltage/current levels,and greatly reducing purchase cost and space occupancy in laboratory or automated test systems. The output power of the TRBA-080-170-752 is 7500W. Maximum output voltage and output current reach 80V and 170A respectively, and a power supply can cover more applications for saving cost.

CC&CV priority function
TRBA series has the function of setting voltage-control priority or current-control loop priority, it can adopt the optimal working modefor testing according to the characteristics of DUT, so as to better protect DUT. As shown in Figure 1, when it needs to reduce voltage overshoot during testing, such as powering a DC-DC power module, the voltage priority mode should be used to obtain a fast and smooth rising voltage. As shown in Figure 2, when it needs to reduce current overshoot during testing or the component to be measured is low impedance such as in the battery charging scenario, the current priority mode should be used to obtain a fast and smooth rising current.

Product Dimension
Model | TRBA-080-55-252 | TRBA-080-110-502 | TRBA-080-170-752 |
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Voltage | 0~80V | ||
Current | -55A~55A | -110A~+110A | -170A~+170A |
Power | -2500W~+2500W | -5000W~+5000W | -7500W~+7500W |
Minimum Operating Voltage | 4.5V@55A | 2V@110A | 2V@170A |
CV Mode | |||
Range | 0~80V | ||
Setting Resolution | 1mV | ||
Setting Accuracy(23±5°C) | 0.02%+0.02%F.S. | ||
Readback Resolution | 1mv | ||
Readback Accuracy(23+5°C) | 0.02% +0.02%F.S. | ||
CC Mode | |||
Range | -55A~55A | -110A~110A | -170A~170A |
Setting Resolution | 1mA | ||
Setting Accuracy(23±5°C) | 0.1%+0.1%F.S. | ||
Readback Resolution | 1mA | ||
Readback Accuracy(23±5°C) | 0.1%+0.1%F.S. | ||
CP Mode | |||
Range | -2500W~+2500W | -5000W~+5000W | -7500W~+7500W |
Setting Resolution | 0.1W | ||
Setting Accuracy(23±5°C) | 0.5%+0.5%F.S. | ||
Readback Resolution | 0.1W | ||
Readback Accuracy(23+5°C) | 0.5%+0.5%F.S. | ||
CR Mode | |||
Range | 0.01~800Ω | ||
Setting Resolution | 10mΩ | ||
Setting Accuracy(23+5°C) | (Vin/Rset)*0.1%+0.1%IF.S. | ||
Series Internal Resistance Settings | |||
Range | 0~2.5Ω | 0~1.2Ω | 0~0.85Ω |
Setting Resolution | 10mΩ | ||
Setting Accuracy(23+5°C) | ≤1%F.S. | ||
Dynamic Characteristics | |||
Voltage Rise Time (no load 10%~90%) | ≤10ms | ||
Voltage Rise Time (full load 10%~90%) | ≤30ms | ||
Voltage Fall Time (no load 90%~10%) | ≤30ms | ||
Voltage Fall Time (full load 90%~10%) | ≤10ms | ||
Transient Response Time | ≤1ms(25%~90% load variation) | ||
Line Regulation | |||
Voltage | ≤0.01%+0.01%F.S. | Current | ≤0.03%+0.03%F.S. |
Load Regulation | |||
Voltage | ≤0.01%+0.01%F.S. | Current | ≤0.05%+0.05%F.S. |
Temperature Coefficient | |||
Voltage | <30ppm/°C | Current | ≤50ppm/°C |
Ripple Noise (20Hz~20MHz) | |||
Ripple (P-P) | ≤200mV | Ripple (rms) | ≤80mV |
Others | |||
Efficiency | 93% | 92% | |
Power Factor | 0.99 | ||
Current Harmonic | ≤5% | ||
Protection | OVP/OCP/OPP/UVP/UCP | ||
interface | LAN/RS232/RS485/CAN | ||
Communication Response Time | 5ms | ||
Isolation(Output to Ground) | 500V DC | ||
AC Input | 220V AC±10%, frequency 47Hz~63Hz, current 16A | 380V AC±10%, frequency 47Hz~63Hz, current 10A | 380V AC±10%, frequency 47Hz~63Hz, current 16A |
Temperature | Operating temperature: 0°C~40°C Storage temperature: -10°C~70°C. |
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Operating Environment | Altitude <2000m; relative humidity: 5%~90%RH (non-condensing); atmospheric pressure: 80~110kPa |
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Dimension | 44.0mm(H)×214.0mm(W)×540.0(D)(with shield) | 44.0mm(H)×428.0mm(W)×711.2(D)(with shield) | |
Net Weight | Approx. 5.1kg | Approx. 13kg | Approx. 14kg |
Note 1: For other specifications, please contact Headspring.
Note 2:All specifications are subject to change without notice.