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Changzhou Tonghui Electronic Co., Ltd.
Tonghui DC Bias Current Source TH1773

Tonghui DC Bias Current Source TH1773

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Tonghui DC Bias Current Source TH1773

Product catalog summary

Component Parameter Test Instruments

TH1773 DC Bias Current Source

Features:

Microprocessor Unit (MPU) control for enhanced precision.
20x2 large character LCD display with backlight for easy readability.
Frequency bandwidth ranging from 50 Hz to 200 kHz.
Current output range from 0 to 10A with a maximum power output of 90 W.
Compatible with TH2816A, TH2817A, TH2818, and TH2819A for direct control.
Low additional error and wide frequency bandwidth for accurate measurements.
Auto or manual current sweep output with single, multi, and equal interval modes.
DC current output available in forward or reverse directions.
Delay time setup from 0 to 99 seconds.
Capable of long-term high current output.
Optional GPIB and RS232C interfaces for connectivity.
User control setting memory for convenience.
Strong protective design to prevent damage to LCR meters.

Brief Introduction:

The TH1773 is a DC Bias Current Source designed for inductance measurement of inductors and transformer windings with DC bias current. It features constant current output, low additional error, and a wide frequency bandwidth, making it suitable for use with high-frequency LCR meters. The device employs MPU-controlled auto current balance technology to achieve AC+DC current overlap and constant current output from 0 to ±10A. It is widely used in DC biased inductance measurement and magnetic material analysis.

Ordering Information:

TH1773 DC Bias Current Source
Instrument Accessories: TH26004E-1 Bias current source link cable, TH26013 DC bias test clip leads, TH2881-001 Foot switch

Specifications:

Current Range: -10A to 10A
Current Resolution: 200 mA Range: 0.1 mA, 2A Range: 0.001A, 10A Range: 0.01A
Frequency Bandwidth: 50Hz to 200Hz
Impedance Range: ωL < 2kΩ, L<8/I (H)
Current Accuracy: ±1% of reading ±3 counts
Output Voltage Range: 0 to 8 V
Additional Error: ≤ 1%
Current Output Mode: Single, multi, and equal interval current output
Sweep Mode: Manual, Auto (Return sweep available)
Sweep Points: 2-15 points
Delay Time: 0 to 99 seconds
Warm-up Time: 20 minutes
Working Time: Continuous work up to 24 hours
Optional Interface: RS232C (used for LCR meter control)

General Specifications:

Operating Temperature and Humidity: 0°C to 40°C, ≤90%RH
Power Requirements: Voltage 198V to 242V, Frequency 47.5Hz to 52.5Hz, Power Consumption ≤ 200 VA
Dimensions (W×H×D): 430mm x 180mm x 460mm
Weight: Approx. 16.4kg

Catalog excerpts

A. ITH1773 DC Bias Current Source Features ■ MPU control ■ 20*2 large character LCD display with backlight ■ Frequency bandwidth: 50 Hz - 200 kHz ■ 0 to 10A current output, max power output 90 W ■ Directly controllable by TH2816A, TH2817A, TH2818, and TH2819A ■ Low additional error , wide frequency bandwidth ■ Auto or manual current sweep output ■ Single, multi and equal interval current output modes ■ DC current output with forward or reverse ■ 0 to 99s delay time setup ■ Long time high current output available ■ Optional GPIB and RS232C interface ■ User control setting memory ■ Strong protective design against damage of LCR meter Specifications Current Range Operating Temperature and Humidity TH1773 Brief Introduction ■ TH1773 is a DC Bias Current Source (or DC Magnetization Current Source) used for inductance measurement of inductors and transformer windings with DC bias current. Except for constant current output, low additional error and wide frequency bandwidth are important for bias current inductance measurement. High frequency LCR meter could be used, when the frequency bandwidth is wide enough. MPU controlled auto current balance technology is adopted to realize AC+DC current overlap and constant current output from 0 to ±10A.TH1773 With its low additional error, wide frequency response bandwidth and sweep output function is widely used in DC biased inductance measurement. It also provides a perfect solution for magnetic material analysis. Ordering Information TH1773 DC Bias Current Source Instrument Accessories TH26004E-1 Bias current source link cable TH26013 DC bias test clip leads

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