How to maintain the programmable DC regulated power supply?
How can the programmable DC stabilized power supply last longer, because under the analysis of big data, the product has an average lifespan, and the programmable DC stabilized power supply is no exception. There are many factors that affect the use time, but we are Proper protection during use can ease the outage time of the regulated power supply.
The service life of the programmable DC regulated power supply mainly depends on the service life of internal components and PCB as well as the whole welding assembly process. The design ensures the parameter selection of programmable DC regulated power supply components, and the production ensures the consistency and operability of the entire welding and assembly. In this way, the stability and reliability of the programmable DC regulated power supply can be guaranteed from the power supply.
The key link to ensure the life of the programmable DC regulated power supply:
We want to reduce the possibility of failure to ensure the long-term stable operation of the programmable DC regulated power supply. The research and development of programmable DC regulated power supply and the production of programmable DC regulated power supply are two important links that must be controlled in the life cycle of programmable DC regulated power supply. The research and development of programmable DC regulated power supply needs to ensure that the performance of programmable DC regulated power supply can meet our requirements and specifications, and ensure the normal life cycle of programmable DC regulated power supply. Programmable DC regulated power supply module products have high requirements for production technology and process control, and high-quality production equipment and management are required to achieve the expected product quality.
Key materials to ensure service life Programmable DC regulated power supply:
The barrel effect is also satisfied between the service life of the programmable DC regulated power supply and the use of the device. The final service life of the programmable DC regulated power supply can only be guaranteed when the service life of all devices reaches the specified service life. Generally, key components are affected by high electrical stress and high calorimeter, and the temperature inside the machine rises rapidly, which has a great impact on the life of the device, so the final evaluation of the life of the device is particularly important. So, in our programmable DC regulated power supply, which key components do we need to pay special attention to?
1. Electrolytic capacitor
Among programmable DC regulated power supply devices, electrolytic capacitors are the most sensitive to temperature. From this point of view, the quality of electrolytic capacitors also determines the life of programmable DC regulated power supply devices to a certain extent, and the performance of AC and DC programmable DC regulated products is the most prominent.
2. Primary switching tube (MOS tube)
This switching device is in a high-speed switching state with high voltage stress and high current stress. The heating caused by the switching loss will also accelerate the aging of the equipment, and it is also vulnerable to breakdown damage caused by external high voltage interference.
3. High frequency power transformer
During the energy transfer process of the high-frequency transformer, the internal loss will cause it to generate heat, and the heat emitted will also affect the life of the transformer material. Common faults of transformers include insulation breakdown, winding burnout, and copper wire breakage.
4. Multilayer Ceramic Capacitors
The biggest problem with SMT ceramic capacitors is their solder joints, which may crack under certain stress. In order to minimize the possibility of occurrence, it is recommended to avoid using multiple ceramic capacitors in parallel.
5. Output rectifier diode
Diodes are mainly subjected to two main electrical stresses, including reverse withstand voltage and forward current, which are also heating devices. In order to ensure the service life of the device, we will provide enough margin in the design, and finally ensure the batch performance of the programmable DC regulated power supply.
6. Photocoupler
The current transfer ratio (CTR) decreases with time. In order to keep the loop stable, the current of the LED continues to increase, and eventually reaches the limit, resulting in damage to the optocoupler.
