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As the core device of power management, DC-DC chips have a wide range of application scenarios, from consumer electronics to industrial control. From seven dimensions of consumer electronics, communication equipment, industrial control, automotive electronics, medical equipment, aerospace, and emerging technologies, combined with specific cases and technical requirements, analyze their core application scenarios:
DC-DC power chip is the core component for voltage conversion in electronic devices, widely used in consumer electronics, automotive, industrial control and other fields. According to their technological roadmap, market positioning, and application scenarios, major brands can be divided into the following three categories:
A DCDC converter is an electronic circuit or module that converts input DC voltage into DC outputs of different voltage levels. It is widely used in electronic devices, new energy systems, and industrial control to achieve efficient power management. Its core function is to regulate voltage to meet load requirements through the collaborative work of switching devices (such as MOSFETs) and energy storage components (inductors, capacitors). The following is a detailed analysis of its working principle, classification, and typical applications:
DC-DC converter is an electronic device that converts DC voltage into another DC voltage, widely used in power management, battery power supply systems, industrial control, automotive electronics and other fields. According to different classification criteria, DC-DC converters can be classified into the following categories:
Murata Co., Ltd. has developed the "FlexiBK series (PE24110)" high-efficiency DC-DC converter IC, capable of 3.3 input voltage and an output limit of 12A, for low rise applications below 1.2mm. This product is available in a 4.0 × 3.2mm QFN (Quad Flat No led package) package, suitable for thin applications below 1.2mm.
TDK Corporation (TSE 6762) announced the addition of adjustable current limit models to the TDK-Lambda brand i7C non isolated DC-DC converter series. The onboard voltage regulator power module has an input voltage range of 9-53 Vdc, and the output voltage can be adjusted from 5-28V, 8-24V, or 9.6-48V based on the rated output current. The topology of i7C can seamlessly switch from buck mode (buck) to boost mode (boost). The "Itrim" output current limiting function supports parallel operation of modules to meet higher power requirements, operate at constant current, or reduce device stress that may occur due to charging large capacitive loads.
Inductors have alternating current, and laying copper at the bottom of the inductor will generate eddy currents on the ground plane. The eddy current effect will affect the inductance of the power inductor, and eddy currents will also increase system losses. At the same time, the noise generated by alternating current will increase the noise on the ground plane, which will affect the stability of other signals. From the perspective of EMC, laying copper on the bottom of the inductor and a complete ground surface is beneficial for EMI design; The current production process of inductors has been upgraded, and shielded inductors are used. There are very few leaked magnetic induction lines, which have little impact on the inductance of the inductors and are also beneficial for heat dissipation.
In the early days, we all built our own power supply circuits, and now there are many integrated chips. DC-DC circuits are also ubiquitous in electronic products. This article shares some basic knowledge of DCDC circuit design with everyone. Concept and characteristics: DC-DC refers to a direct current to direct current power supply. It is a device that converts electrical energy from one voltage value into electrical energy from another voltage value in a DC circuit.
