Thermal solutions for high-voltage power supply
In terms of the thermal solutions 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 is also involved in 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 quantity of heat is to be removed in a timely manner to ensure the thermal stability of the power supply, so the higher requirements for the heat dissipation performance, good heat dissipation system is the guarantee of stable performance and an important prerequisite for long-term reliable operation.
The common thermal solutions of high voltage power supply can be classified 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 leading heat sink manufacturer on power supply industry, we are very professional and experienced in heat pipe air cooled heat sink and liquid cooling heat sink building, our factory has been founded over 8 years, we are providing varieties of heat sinks to the global customers. Please contact us freely if you have any thermal requirements.
