Often IPMs are produced in a transfer molding process. The energy semiconductors and other components are attached to a cause frame. For isolation and protection every thing is molded with plastic. The advantage of that engineering is the simple generation process. Drawbacks will be the scale down issue of the lead body and the restricted heat conductivity of the solitude material. The physical style also offers some powerful limitations. Typical programs are customer items like white things or low priced typical engine drives.
Yet another chance for high integrated power technology may be the thick-film technology. Different layers of conduction and removing materials are printed on a porcelain sheet. The layers may construct songs, pads, or resistors. Benefits of the engineering are the great thermal conductivity and the chance to generate layouts similar to a PCB. The design of the enclosures and the hooks don’t have any limitation. Thick-film is a very mature technology. It is in use for quite a while, especially in critical purposes, e.g. at the automotive industry.
One thick-film centered wise power adventures is the flowIPM from Vincotech. That energy component has power semiconductors for the rectifier and a 3- phase inverter, a whole driver enterprise with bootstrap circuit and shunt resistors for current feeling all together in one package. Elective a PFC (Power Element Correction) power point can also be incorporated (MOSFET with driver, diode, and capacitor). Nearly all components which work on grid voltage are built-into the module.
The most presented programs for the flow ipm igbt module are stuck engine drives. They’re methods where the engine and their operating technology are integrated, e.g. fans, pumps, converters, air conditioning, or professional energy tools. All of these systems providing just very limited space. The compact and often hermetical design is just a big problem for the heat dissipation of digital components. Such an environment is the right area for the flowIPM to show his strength:
High Integration: The flowIPM includes all energy semiconductors and all the peripherals for a generator drive. Only the big passive parts have to be mounted separately. The text hooks are divided in two lines, one with the power associations and one with the get a handle on signals. The purchase of the energy connections stops any input/output crossings. The in- and components of the driver enterprise are on reasoning stage and can immediately linked to a microcontroller or similar.
Chilling Concept: The ceramic sheet of the IPM has a very low thermal resistance. All parts are put on the ceramic; the ceramic is directly attached to the heatsink. All components are directly and optimal cooled. For the ability semiconductors this is very important to possess good efficiency and large efficiency. But additionally components like driver tracks and shunt resistors take a take advantage of an excellent cooling. Particularly when utilized in a hermetic atmosphere without air circulation.
High Efficiency: All power parts are state-of-the-art and have very low power losses. This contributes to great power efficiency and low heat dissipation. The incorporated PFC enterprise is optionally built with a SiC diode. That permits PFC converting frequencies > 200 kHz. With higher changing frequencies, smaller inactive parts can be used.
EMC Abilities: The shut aspect associations and the integrated capacitor for the DC url are blocking HF loops. The restriction of parasitic inductivities reduces voltage overshoots all through converting operations.