Sinrace Power Supply Technology (Shenzhen) Co., Ltd.

Power Analysis

Power devices become increasingly complex in recent years, the variety and number of components increase rapidly, the operating environment has become harsh and diverse, and the service of electronic systems is becoming more important and expensive, especially military equipment, especially in the aviation, astronautics ,the reliability requirements of components and system are even higher.     The power of electrical system, its mission is to provide electricity for a variety of circuits in the electronic system, due to the circuit type has different function each other, so the power supply can be divided into in accordance with the different supply ways,: UPS power supply, EPS power supply, regulated power supply , frequency power, clean power, special power, generators, switching power supply (AC / DC), inverters (DC / AC), power modules (DC / DC) and other power supplies.

What application of the thermal imaging in which power supply?

The temperature control of power supply, is an important way to reliability and service life of power modules and systems. In the design and application of power, select the appropriate components, namely to reduce the circuit loss and improve module conversion efficiency, and choosing the right cooling method is key technology to ensure reliable and steady operation of power, combining the two points, will make the power supply has more strong environmental adaptation , long life, low cost, easy maintenance and other technical advantages.

Electron component

Power is an energy conversion device, during the conversion process itself needs to consume some power which is converted into heat energy to release. Stability and the aging rate of electronic components work is closely related to the ambient temperature. When the temperature rises to 10 ℃, the life of main power components reduce 50% , which requires electronic components should work in the relatively stable and low temperature range.

Thermal imager can provide fevering heat map to engineers when each component is working in the circuits, to help engineers analyze influence of components for the whole power circuit temperature, but also helps engineers to choose the converter module with right load capacity.

Transformer

Transformer is the main component of power working, the heating temperature is limited, currently domestic 3C certification limits transformer temperature to be within 120 ℃, the European UL approval limits transformer temperature to be within 115 ℃. The main heat source of power is the transformer, while the iron core loss and copper loss is the main reasons of transformer temperature rising. In addition, the transformer temperature rises, will cause inevitably the core load weakening, and coil aging, when the insulation performance descend, will lead to impact energy capacity of anti-electric supply  weakening. Then if lightning or electricity surge occurs, the high back pressure of transformer primarily occurred will breakdown, so that the power failure, as well as high-voltage string to primary device, causing the damage of the main equipment.

Thermal imager can offer accurate transformer temperature by rapid, simple operation.

Circuit heating distribution

The same circuit board should be as much as possible partition arranged according to their heating value and heat dissipation, using reasonable device arrangement, can effectively reduce the temperature rising of printed circuit, thus make the failure rate of device and equipment decreasing.
Thermal imager can provide infrared heat map to help engineers analyze the entire circuit board temperature distribution, improve the design and application of engineers.

Power cooling

Cooling technology is basic tool to meet the power of technology to meet the industrial performance requirements. Currently each power modules use the common cooling methods including natural cooling, fan cooling, cooling pure and natural cooling combination.

Power products have a large transformer, and some large capacitors, which are large heat sources, these heat sources could give your product some other circuits and have a great impact on the stability and working life of components. Using infrared imaging can directly measure the fever and heat dissipation in the three cases, engineers improve the design, using reasonable cooling method in the practical application, to improve the stable  reliability of power supply, reduce equipment failure rates.

When process the power equipment, it is easy to occur process problem at joints and pressure lines, using thermal imaging device can be relatively simple, intuitive and secure to find fault, to help production personnel, quality control personnel find and solve problems, improve product quality.
Thermal imaging is in applications department , in addition to R & D departments, but also mainly are: quality control department, service department, and equipment maintenance and so on in power supply enterprises.