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Application Note
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Decoding Qualcomm Automotive Domain Controller First-Stage Power Supply Design: Schematic Design and PCB Design
The rapid development of the new energy vehicle industry has promoted the explosive growth of various industrial chains, and automotive intelligence and autonomous driving have become the most important core competitiveness direction of new energy vehicles, bringing new challenges and opportunities to the highly integrated central brain and domain controller, especially for the reliability, high power density, EMC, high efficiency and cost-effectiveness of DC-DC switching power supplies.
Jul. 09. 2025 -
Decoding Qualcomm Automotive Domain Controller First-Stage Power Supply Design: Power Supply Design and Calculation
This paper combines the large dynamic switching power supply current (100-300%) automotive central domain control level 1 power supply design, to explore the design of DC-DC switching power supply, including power supply scheme, inductor, capacitor selection and other design methods; taking into account the volume, cost, efficiency, performance challenges to explore and practical landing design.
Jul. 08. 2025 -
Application classification and selection of common mode inductors
For the same common-mode series, packaging structures of different sizes are suitable for different current sizes and filtering bandwidths: the larger the size, the lower the magnetic resistance of the magnetic core, which can reduce the number of winding turns, so that the wire diameter of the copper wire can be enlarged and a larger current loop can be used; the higher the inductance value or the lower the stable frequency of the material's magnetic permeability, the narrower the applicable filtering bandwidth, and such a common-mode inductor placed in the loop is likely to have no noise suppression effect on the high-frequency end.
Jul. 07. 2025 -
Power Inductors for 48V Mild Hybrid System VSRU27 Series
The standard 48V system consists of three main components: a motor, a lithium-ion battery pack, and a DC-DC converter. 48V systems can be viewed as an upgraded version of the 12V system, expanding on the 12V system to handle higher loads, and can be efficiently coupled to these systems using a lift-off converter.
Jul. 06. 2025 -
Power Inductors Heating Analysis and Solutions in Electric Vehicle Power Systems
In electric vehicles (EV), power inductors are critical for efficiently converting electrical energy to meet the demands of various onboard systems. Their performance directly affects the vehicle’s overall efficiency, power delivery, and safety. As EV technology advances and market demands increase, optimizing the performance of onboard power inductors has become essential.
Mar. 20. 2025