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Influence of low atmospheric pressure (above 2000m above sea level) on safety performance of electronic products
1，Insulation materials in the electric field will also be destroyed due to its insulation strength and lose due insulation performance, then there will be insulation breakdown phenomenon. Standards GB4943 and GB8898 stipulate electrical clearance, creepage distance and insulation penetration dis...Read more -
Influence of low atmospheric pressure (above 2000m above sea level) on safety performance of electronic products
At present, the international standards for information technology equipment and audio and video equipment are IEC60950, IEC60065, their application scope is 2000m above sea level below the area, mainly in dry areas and temperate or tropical climate conditions to use the equipment, and the high a...Read more -
THE SELECTION OF SUITABLE HEATSINK FOR COOLING POWER SEMICONDUCTOR DEVICE
1. Water cooling assembly of heat sink and device The cooling mode of assemblies include natural cooling with heat sink, forced air cooling and water cooling. In order to enable the device employ the rated performance reliably in application, it is necessary to choose a suitable water cooling hea...Read more -
An Example of Device Selection for Motor Transmission Control (soft starter)
A three-phase thyristor rectifier bridge is required to control a DC motor. The suitable device is important to ensure the stable operation of the soft starter to control the motor and it must selected to coincide with the property of motor and requirement of system. The selection principle provi...Read more -
Precautions of Replacing the Thyristor or Rectifier
When we replacing the disc type thyristor or rectifier, the following issues should be noted: 1. The first thing should pay attention to is the contact areas of the device two sides as well as the top and bottom contact area of the heatsink. Any pits, burrs or articles…etc on the surface which wi...Read more -
The industry scale and development trend of China power semiconductor
In recent years, the application of power semiconductor device has expanded from industrial control and consumer electronic to new energy, railway transit, smart grid, variable frequency home appliances and many other industry markets. The market capacity is steady incre...Read more -
Jiangsu Yangjie Runau Semiconductor in China Power Semiconductor Industry
The upstream of the power semiconductor industry is electronic materials, including equipment and raw materials; the midstream is the production of semiconductor components, including design, manufacturing, packaging and testing; the downstream is end products. The major raw materials involved ar...Read more -
The selection of thyristor in series and parallel resonant circuit
1.The selection of thyristor in series and parallel resonant circuit When thyristors are used in series and parallel resonant circuit, the gate trigger pulse should be strong, current and voltage should be balance, and the conduction and recovery characteristics of devic...Read more -
Introduction of Square Thyristor Chip manufactured by Runau Semiconductor (2022-1-20)
Square thyristor chip is a kind of thyristor chip, and a four-layer semiconductor structure with three PN junctions, including gate, cathode, silicon wafer and anode. The cathode, silico...Read more -
The soft starter application of high voltage phase control thyristor
Soft starter is a novel motor control device that integrates motor soft start, soft stop, light load energy saving and multiple protection functions. Its main composed by three-phase reverse paralleled thyristors and the electronic control circuit connected in series bet...Read more -
Fight With Virus, Victory Belongs to Us !
In July 31 2021, a hard decision to lockdown the city completely was made by Yangzhou government due to the rapid outbreak of the new mutant virus of COVID-19. This is the thing that has never happened since COVID-19 virus swept the world in 2020. In such an emergency si...Read more -
To create the green footprint of environment protection, Runau company is fully committed in energy saving and no pollution commission during whole production procedure. Environmental friendly proj...
The new product: 5200V thyristor developed successfully In July 22, 2019, Runau announced the new product: 5200V thyristor with 5” chip was developed successfully and ready to manufacture for customer’s order. A series of cutting-edge technologies were applied, deep optimization of impurity diffu...Read more