Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-04-07 Hits: Popular:AG11 battery
Reliability Research on Switching Power Supply Design
There are two indispensable properties for the quality of electronic products - technology and reliability. As a successful electronic product is launched, the comprehensive level of two aspects affects product quality. As an important component in an electronic system, the reliability of power supply determines the safety performance of the entire system. Switching power supply is widely used in various fields due to its small size and high efficiency. However, how to improve the reliability of switching power supply is a matter of power electronics technology. An important turning point for a great leap forward.
1. Electromagnetic compatibility (EMC) design technology
Switching power supplies mostly use pulse width modulation (PWM) technology. The pulse waveform is rectangular, and its rising and falling edges contain a large number of harmonic components. In addition, the reverse recovery of the output rectifier will also produce electromagnetic interference (EMI), which has an impact Disadvantages to reliability, which makes electromagnetic compatibility of the system an important issue. There are three necessary conditions for the generation of electromagnetic interference: interference source, transmission medium, and sensitive receiving unit. EMC design is to destroy one of these three conditions.
For switching power supplies, the main purpose is to suppress interference sources, which are concentrated in the switching circuit and the output rectifier circuit. The technologies used include filtering technology, layout and wiring technology, shielding technology, grounding technology, sealing technology and other technologies.
2. Switching power supply electrical reliability engineering design technology
For power factor correction technology, it specifically refers to the fact that the harmonic current of the switching power supply pollutes the power grid and interferes with other common network equipment, which may cause the neutral line current of the three-phase four-wire system to be too large and cause an accident. The generally chosen solution is to use Switching power supply with power factor correction technology.
In terms of protection circuits, in order to enable the power supply to work reliably in various harsh environments, a variety of protection circuits should be added to the design, such as protection circuit measures against surge impact, over-under voltage, overload, short circuit, overheating, etc.
Regarding the choice of control strategy, it can be traced back to the fact that current-mode PWM control is a widely used method in small and medium-power power supplies. In DC-DC converters, the output ripple can be controlled at 10mV, which is superior to conventional power supplies with voltage-type control. Due to the limitation of switching losses in hard switching technology, the switching frequency is generally below 350kHz; soft switching technology enables switching devices to switch at zero voltage or zero current to achieve zero switching loss, thereby increasing the switching frequency to the megahertz level. This technology is mainly used in high-power systems and is less common in low-power systems.
For power supply methods, they are generally divided into centralized power supply systems and distributed power supply. Modern power electronic systems generally adopt distributed power supply systems to meet the requirements of high-reliability equipment.
Read recommendations:
Differences between lithium iron phosphate and ternary lithium batteries
Last article:18650 battery pack 3.7v
Next article:18650 battery rechargeable
Popular recommendation
521133 battery Processing
2023-03-22801620 battery manufacture
2023-03-22801752 battery wholesaler
2023-03-2212v 18650 battery pack
2023-05-09AAA Ni-MH batteries manufacture
2023-03-22505060 2000MAH 7.4V
2023-06-10701224 145MAH 3.7V
2023-06-10Lithium Battery LQ12-150
2022-08-19Plastic pet muzzle
2022-09-22AA
2022-07-22LR6
2022-08-19701224 145mAh 3.7V
2022-07-016LR61
2022-07-01Coin Battery CR 2320
2022-09-27Coin Battery CR 1220
2022-09-27li ion 18650 battery pack direct sales
2023-06-25102450 polymer battery
2023-06-252000mah 18650 battery
2023-06-25CR1616 battery
2023-06-25702535 lipo battery
2023-06-25button battery cr1620.Analysis of Explosion Types of Lithium Batteries
2023-11-23Specific requirements for lithium-ion batteries for equipment
2024-06-25Advantages of lithium iron phosphate battery
2022-12-07CR2330 battery.What is BMS?
2023-11-21Power battery manufacturers explain the correct use of high Lithium battery of electric vehicles.LR4
2023-06-16Lithium ion battery separator structure.battery 18650 rechargeable
2023-07-20Common parameters of rechargeable batteries.3.7V 18650 lifepo4 battery.CR2430 battery
2023-08-15Wet recovery of lithium iron phosphate batteries.R03 Carbon battery
2023-08-21Requirements for the formation and capacity separation accuracy of lithium batteries.no. 7 alkaline
2023-09-15Advantages of 18650 lithium battery.energy storage battery for solar system
2023-03-25