High-Current Charger / Discharger for Secondary Battery
FEATURE
- The World's Only Hybrid (Linear + Switching) Type Battery Charging / Discharging Control
- Merge Mode Applied for High-current (400A) Implementation
- Precise Implementation of Current Waveform (within 5ms of Tr/ Tf Time)
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Advantages of WS 7400 Charging / Discharging Cycler
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1) World-class Performance
- · High-accuracy (Voltage ± 0.05%, Current ± 0.1%), CP Pulse width - 100ms, Charging / Discharging Switching Time - 5ms, Recording - 100ms
- · Providing three Types of Programs (Run-OS, Schedule Editor, Data Viewer)
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2) Hybrid (Linear + Switching)-type Battery Charging / Discharging Control
- · Increasing Control Accuracy, which is the Advantage of the Linear-type Control.
- · Achieving the Compactness of Equipment and High Energy Efficiency which is the Advantage of the Switching-type Control
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3) Merge Mode for Implementing High Current
- · Responding to Battery Cells of Various Capacities with the Merge Mode.
- · No Additional Devices Needed for Increasing the Battery cell Capacity.
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4) Electric Vehicle Simulation
- · Implementing Current Waveforms in the Actual Driving mode to Verify the Battery's Performance for Electric Current Generated During the Driving of an Electric Vehicle or Autonomous Car.
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5) Elimination of Crosstalk
- · Crosstalk between Adjacent Channels Removed through Independent Operation of Channels although the Current of the Low-current Charging / Discharging Channel may be Affected by the Electromagnetic waves Generated in the High-current Charging / Discharging Channel.
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6) Precise Waveform Realization and Various Inspection Processes
- · Charging / Discharging a Battery with Desired Waveforms using Programmable Pulse Compiler (PPC), and Accurately Measuring Current, Voltage, and Temperature.
- · Higher-performance allowing a Variety of Inspection Processes.
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Marketing Division
- 1) Operation of the Test House - Support 5V 400A 16Ch Modular Rack
- 2) Equipment Rental Service
SPECIFICATION
WS7400
| Classification | Spec | |
|---|---|---|
| Spec. | 5V 200A/400A | |
| Voltage | Resolution 1mV | Accuracy ±0.05% |
| Current | Resolution 1mA | Accuracy ±0.1% |
| Power | CP mode 100ms | Accuracy ±0.15% |
| 4Ranges | 20A, 100A, 200A, 400A | |
| (Manual or Auto Selecting) | ||
| Control Mode | CC, CCCV, CP, CPCV, CR, CRCV, Reset, DCIR | |
| Pulse Width | Current : 100ms≤, Power : 100ms≤ | |
| Current Rising | 400A : 5ms (Short Cable) | |
| Charging/discharging switching time | 5ms≤ | |
| Recording condition | 100ms | |
| Safety measures | Hardware 7parts, Software 4parts | |
| Size | WHD =1200x1800x1500 [mm], 32CH | |
Differentiation of the Technology
※ You Can Check the Contents by Scrolling Left / Right.
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1) Hybrid-type (Linear + Switching) Battery Charging / Discharging Control- Variable Voltage Switching Control (Energy Efficiency ↑) + Linear Control of the FET Block (Accuracy ↑)
2) Merge-mode for Implementing High Current (400A)
| Current Application Mode | Normal Mode (Serial) | Merge Mode (Parallel) |
|---|---|---|
| Block Diagram |  |
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| Conceptual Diagram |  |
 |
| Operation Channel | Implemented in 2 Channels | Implemented in 1 Channel (Cell #2: Off) |
| Maximum Current | 200A/200A | 400A |
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3) Compact Size and Crosstalk Removal- Size Reduced by 30% Compared to other Equivalent Models
- Elimination of Crosstalk between Adjacent Modules
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4) Precise Implementation of Waveforms- Charging / Discharging a Battery with Desired Waveforms using Programmable Pulse Compiler (PPC), and Accurately Measuring Current, Voltage, and Temperature
- Improved Performance in Terms of Pulse width, Variable Tr / Tf Function, and Accuracy Compared to Existing Charger / Dischargers
Example of Precise Waveform Implementation Using PPC
Semicircle Pulse
Triangle / Sine / Arbitrary Waveform
Software - Run OS
This Tool can be Executed by Importing the Schedule Pattern Generated in the Editor, which can View the Current Operation Status and Results in Real Time on the Monitor Screen.
Run OS Screen
- ⓐ Guide View :
Shows Connection and Operation Status for a Selected Channel - ⓑ Channel Information View :
Shows Details of the Current Status and Operation Information for a Selected Channel - ⓒ Channel Information (ETC)View :
Displays Information on the Operating Status of a Channel - ⓓ Main View :
Shows Information on Multiple Channels in Progress in Real-time
Software - Viewer
Example Screens (Current / Voltage)
Viewer Screen
- ⓐ / ⓑ Menu View :
Shows the Main Menu and Job Menu List - ⓒ Data View :
Displays the File Name of the Selected Result Data - ⓓ Main View :
Shows the Selected Results with Graphs
Schedule Screen
Example Screen
Viewer Screen
- ⓐ Tree View :
Creates a Schedule List. - ⓑ Main View :
Sets the Schedule Flow and Other Conditions. - ⓒ Print View :
Shows any Configuration Error when Compiling after Creating a Schedule. - ⓓ ETC Setting View :
Sets the Configuration and Alarm Mask.
Test Product
