摘要:
A system for temperature control of an electronic component includes a heat plate (10) supporting the component (18); a heat plate temperature sensor (20), a fan (14) capable of providing air for cooling the heat plate; and a fan control (22) for using the heat plate temperature to control the operation of the fan to provide a substantially constant heat plate temperature. The system can further include a heat pipe assembly (12) having fins and coupled to the heat plate with the fan capable of providing air to the fins. The heat pipe assembly can include at least two heat pipes each having first ends coupled to the heat plate and second ends situated in a condensation section where at least one of the heat pipes has a different working fluid than an other. A switch temperature or load current sensor can be coupled to the heat plate and supply data to a switch controller for receiving the switch temperature, determining whether the temperature or load current has changed, and adjusting a switching frequency of the at least one electronic switch device in response to any change of the switch temperature. A bus layer can be situated adjacent the component and selectively coated with an insulating material and studs can mechanically and electrically coupling the bus layer and a printed circuit board to the component. An insulating shield can be situated between the bus layer and the printed circuit board with the studs.
摘要:
An electric power converter 104 for a renewable power source 102 includes at least one alternating current (AC) conduit 176,178,180 coupled to an external AC power device 106 and at least one direct current (DC) conduit 114,116,118,132 coupled to an external DC power device 102. The converter also includes at least one immersion structure 222,322 defining at least one immersion cavity 226,326 therein and a plurality of semiconductor devices 200,300. The semiconductor devices include a substrate 204,304 positioned within the immersion cavity. The substrate defines a plurality of heat transfer surfaces 206,207,306,307 thereon. The semiconductor devices also include at least one semiconductor die 202,302 coupled to the substrate, the AC conduit, and the DC conduit. The converter further includes a liquid 228,328 at least partially filling the immersion cavity such that the semiconductor die is fully immersed in and in direct contact with the liquid. Heat 248,348 generated in the semiconductor device induces a phase change in the liquid.
摘要:
An electric power converter 104 for a renewable power source 102 includes at least one alternating current (AC) conduit 176,178,180 coupled to an external AC power device 106 and at least one direct current (DC) conduit 114,116,118,132 coupled to an external DC power device 102. The converter also includes at least one immersion structure 222,322 defining at least one immersion cavity 226,326 therein and a plurality of semiconductor devices 200,300. The semiconductor devices include a substrate 204,304 positioned within the immersion cavity. The substrate defines a plurality of heat transfer surfaces 206,207,306,307 thereon. The semiconductor devices also include at least one semiconductor die 202,302 coupled to the substrate, the AC conduit, and the DC conduit. The converter further includes a liquid 228,328 at least partially filling the immersion cavity such that the semiconductor die is fully immersed in and in direct contact with the liquid. Heat 248,348 generated in the semiconductor device induces a phase change in the liquid.
摘要:
A system for temperature control of an electronic component includes a heat plate (10) supporting the component (18); a heat plate temperature sensor (20), a fan (14) capable of providing air for cooling the heat plate; and a fan control (22) for using the heat plate temperature to control the operation of the fan to provide a substantially constant heat plate temperature. The system can further include a heat pipe assembly (12) having fins and coupled to the heat plate with the fan capable of providing air to the fins. The heat pipe assembly can include at least two heat pipes each having first ends coupled to the heat plate and second ends situated in a condensation section where at least one of the heat pipes has a different working fluid than an other. A switch temperature or load current sensor can be coupled to the heat plate and supply data to a switch controller for receiving the switch temperature, determining whether the temperature or load current has changed, and adjusting a switching frequency of the at least one electronic switch device in response to any change of the switch temperature. A bus layer can be situated adjacent the component and selectively coated with an insulating material and studs can mechanically and electrically coupling the bus layer and a printed circuit board to the component. An insulating shield can be situated between the bus layer and the printed circuit board with the studs.