The thermal solution of high voltage power supply
In terms of the heat dissipation mode of the current power supply industry, the high-voltage power supply is different from the conventional module power supply. Most people probably think of a variety of DC power supplies with converters, regulators, and other power handling and power conversion functions. However, power management is much more than that. Due to inefficiency, all power supplies are heated and all components must be cooled.
Therefore, power supply also needs thermal management, especially the heat dissipation of power-related function units.
In addition, even if the components and system continue to work within the specification range, with the drift of component parameters, the increase of temperature will also cause performance changes, which will affect the overall power conversion efficiency and the compliance of various performance indicators.
High frequency high voltage power supply now, due to the small size, high integration, high output power, will produce a large amount of heat in the process of its operation, the volume of heat needs to be removed in time to ensure the thermal stability of the power supply, so the higher requirements for the thermal performance, good thermal system is the guarantee of stable performance and an important prerequisite for long-term reliable operation.
The common heat dissipation mode of high voltage power supply can be divided into air-cooled and liquid-cooled (oil-cooled and water-cooled).
The main difference between air cooling and liquid cooling is that the heat dissipation medium is different. Air cooling is the heat dissipation through the air flow of the fan. According to the different current or power size, it is given to the power components inside the power supply, such as rectifier modules, resistors/inductors, transformers, etc.
Liquid cooling is the way heat is carried out by water-cooled or oil-cooled immersion or cyclic flow. Cyclic cooling effectively protects core temperature.
Different application environments, different advantages and disadvantages of maintenance measures, can be designed with different heat dissipation methods, can also be combined with air cooling and oil cooling. Such as confined space, air cooling is very limited, no oil cooling cycle heat dissipation is more appropriate.
Sinda Thermal is a professional heat sink manufacturer, we are very experienced in varieties of heat sink types designing and manufacturing, our factory owns a team of thermal experts and many precise facilities and equipment. We can offer the most competitive price and great quality heat sinks to the global customers. Please contact us freely if you have any thermal requirements.
