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Why does melt-blown cloth need static electret equipment?01 Why does melt-blown cloth need static electret equipment?Electret electrostatic adsorption is to capture coronavirus droplets through the coulomb force of charged fibers.

Laser power supply is the energy of laser, it provides pumping energy to laser, control laser output strength and repetition frequency. Therefore, laser power supply is an essential part of laser. Its power and stability have direct influence on the corresponding performance of laser. The current output of a power box is designed according to the requirements of the pump module.

Why the laser is weak or has no laser outputWhether the focusing mirror is contaminated: Clean the focusing mirror.Whether the focal length of relief engraving machine equipment changes: readjust the focal length.Whether the optical path is offset: Adjust the optical path carefully.Whether the reflector is contaminated or damaged: Clean or replace the reflector.Whether the laser power supply is powered on: Check the power supply loop of the laser power supply to make it normal.Whether the laser tube is damaged or aged: Replace the laser tube.Whether the laser power supply is damaged: Replace t

Laser operators should have the relevant technical knowledge of laser power supply system. If the large-scale laser power supply system has an emergency situation during operation, the laser operators should diagnose and repair the fault as soon as possible to ensure the normal operation of the laser system. There are many reasons for the power problems of laser power supply. Here, we will list the following five problems which are easy to appear in the operation of laser system for discussion.1.

Design and implementation of semiconductor laser power supplyIn order to improve the stability of the optical power output of the semiconductor laser and ensure the safe and reliable operation of the laser, the semiconductor laser power supply can be designed according to the following introduction. The main circuit of driving power adopts synchronous DC/DC mode, which has high output efficiency. The driving circuit can generate 200kHz trigger pulse, which can reduce the ripple of output current and ensure the stability of the output power of the laser.

Technical Trends of Switching Power Supply AbroadSince the 1990s, the development of switching power supply has changed with each passing day. Many new fields and new requirements put forward newer and higher challenges to switching power supply. If we observe from the input and output window of a switching power supply, we can find that the input requirements have become more stringent, and products that do not meet the IEC1000-3-2 standard will be gradually eliminated; The output has derived many special application fields, and the difficulty of research and development has become greater.

Selection and use of semiconductor laser power supplyFirst, the basic requirements of semiconductor laser power supply1. Constant current output: short-circuit constant current output, load changes or short-circuit automatic adaptation.2. Output current ripple: ripple, noise and rated output current cannot exceed the maximum current that the laser tube can bear.3. Output voltage ripple: Ripple voltage noise will not damage the laser immediately, but if serious, it will affect the life of the laser.4. Soft start: Slow start current curve, no overshoot.5.

Switch power output protection policyIn all switching power supply designs, protection against load and protection against power supply due to load failure is a very important aspect to be considered in the design. In the design of military products, a kind of work called failure mode and impact analysis is often required. In this work, each part of the circuit is assumed to be an open circuit fault and then a short circuit fault. In this case, analyze separately how each fault will affect the rest of the circuit.

Laser power supply technicians are important members of the operation of laser equipment, but in the operation of laser power supply, will also encounter all kinds of difficulties, today we summarized some of the first-line manufacturers of technical personnel to provide common problems to discuss with you:▲ Power failure:Problems occur: Because the laser power supply system, especially the high-power laser power supply system requires a large amount of voltage, if the voltage is not stable, it will produce inconsistent output power, resulting in catastrophic damage.Solution: If you do not hav

Along with the continuous development of economy in our country, most areas begin to produce electric power equipment, which makes the national grid electric power output insufficient, coupled with the aging of the power output facilities, eventually causes the voltage at the end of the circuit to be too low, which brings great influence on the stability of laser output. The stable output of laser energy is a necessary condition for laser production.