Introduction to the characteristics of transistor welding power supply

In the field of precision resistance welding, transistor welding power supplies play a key role. Its DC circuit is connected in series with a high-power transistor group to obtain the required external characteristics and steplessly adjust the current and voltage. The transistor acts as an "electronic switch" or "linear amplifier regulator" in the main circuit, and relies on the "switch-type" or "analog" transistor group and closed-loop feedback to control the external characteristics and output current.

This power supply has many advantages:

1. The transistor is fast on and off, flexible in control, and high in precision. The analog output voltage is pulsating, and any current waveform can be obtained, which has great guarantee for precision resistance welding tasks. The welding monitor monitors the current output in real time.

2.  The external characteristic curve can be freely adjusted according to process requirements, and the welding monitor records parameters for traceability.

3. The adjustable parameters are rich and wide in range. The transistor pulse arc welding power supply precisely controls the pulse parameters and is suitable for all types of welding. The welding monitor ensures that the welding process is controllable throughout.

4. The circuit time constant is small and the response is fast. With the help of relevant control, less spatter welding can be achieved, and the welding monitor verifies the power supply performance.

5. It has strong anti-interference, can compensate for changes in various factors, and ensures the stability of voltage and current. The monitor records data and presents advantages.

6. The pulse frequency is high, and the switching power supply can adjust the pulse duty cycle to obtain the required parameters and external characteristics, and the monitor records the changes.

7. The control performance is good, which is convenient for stepless, remote control, and microcomputer control, and creates an intelligent operation scene with the monitor.

8. However, it has shortcomings, such as heavy equipment, high power consumption, low efficiency, high cost, and difficult maintenance, which prompts the industry to improve, and the monitor data provides a basis for improvement.

In short, the transistor welding power supply plays an important role in the field of precision resistance welding, and cooperates with the welding analyzer equipment to promote the development of welding technology.