■ Test Frequency: 0Hz - 2MHz
■ Provide 0~20A of constant current output
■ Support 6 machines on line at most and
reach 120A of constant current output
■ Extreme refined current step: when <1A, reach 5mA;
when <5A, reach 25mA;
when <120A, reach 100mA
■ Adopting a new generation AC/DC superposition test theory
to adapt test requirements for high precision and high
frequency
■ Current output mode: single current, step scan
■ Adopting new designed friendly graphical operation interface
and providing multiple operation practice
■ Providing real-time operation mode for all parameters
and settings without waiting
■ New file management system with easy, prompt and
accurate operation
■ Providing two kinds of SCPI command modes with good
adaptability
■ New foot control mode with 5 control modes
■ Excellent tailing capability and extendibility, additional slave
superposition depending on the demands
■ Offering dual-progress bar indication and corresponding
small tools
■ Selectable Chinese and English interface
- Brief Introduction
The instrument adopts a new generation AC/DC superposition test theory to adapt test requirements for high precision and high frequency. The built-in embedded MCU with high-performance can quickly respond to host and slave machine condition or malfunction and make real time indication, which helps improve the work efficiency. The new designed friendly graphical operation interface, included 5-foot control modes and full touch operation provides convenience and efficiency for users. New file management system with easy, prompt and accurate operation can save a group of real-time setting file and 99 groups of user defined setting files. It can provide pushed information indication and cache 2 real-time information. Being provided with two modes of SCPI instruction systems, it is convenient to set up production lines or single machine test. Also, it can connect with any device with serial port and which refer to the SCPI instruction system design of this machine.
New Trend of AC/DC Superposition Test by virtue of profound technology and extensive market survey in bias current field, Tonghui introduced the large power DC bias current source— TH1778A. CortexM3 ARM CPU with high-performance, graphical interfaces and full-touch operation make TH1778A series DC Bias Current Source convenient and efficient for you.
TH1778A series is appropriate for AC/DC superposition test of magnetic inductors and test occasion for large current. Also, it can provide magnetizing current for the analysis of magnetic materials. The adopted new software framework is adapting to real-time parameter adjustment and operation.
- Application
- Technical Parameter
Modle TH1778A Display Display 480×272 16:9 24-bit true color TFT LCD Interface Complete graphic user interface Operation Resistor type touch screen + entitative key + foot switch Current Step 0mA-1.000A 5mA 1.000A-5.000A 25mA 5.0A-120.0A 100mA Supporting Test Frequency 0Hz-2MHz Sweep Adjustment Time 0mA-1.000A 4ms-3600s 1.000A-5.000A 10ms-3600s 5.0A-120.0A 20ms-3600s Minimum Interval of Sweep Adjustment Step 0mA-1.000A 5mA 1.000A-5.000A 25mA 5.0A-120.0A 100mA Range Host machine (TH1778A) 1.000A/5.000A/20.0A Slave Machine (TH1778AS) 20.0A Maximum Output Voltage 35V (when outputting 1.000A. Fordifferent ranges, please refer to the user manual) Maximum Permitted DCR Rmax= (Ω)(Calculation ofRmax, please refer to the description in user manual) Maximum Permitted Inductance Value Lmax= (mH)(Calculation ofLmax, please refer to the description in user manual) Range Mode Auto Control Mode for START/STOP START/STOP entitative key, 4 foot switches, Bus Max. Current Time for Continuous Loading Keeping 2-3h, continuous output Function Fault self-inspection; 99 groups of custom profile management; dual-progress bar indication; Chinese and English; soft switching of slave machine; real-time operation; SCPI command set; simple dual-display computer. Interface RS232S、laverLink Work Environment Temperature 0℃-55℃ Humidity ＜90%RH Power Requirement of Adapter Voltage AC 220V/110V（1±10%） Frequency 50Hz/60Hz（1±5%） Power ≤60VA Dimension（W×H×D）（mm） Single one: 430×185×473（mm）（not including equipment cabinet） Weight Single one: 18kg（not including equipment cabinet）
- Accessary
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