一种数字控制厚膜混合集成开关电源设计

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关键词：厚膜混合集成；数字控制；电压前馈；低压大电流中图分类号：TM46文献标志码：A 文章编号：2095-8188（2025）08-0034-05DOI：10.16628/j.cnki.2095-8188.2025.08.005

Abstract：Based on the principle of the digital power controller and the thick-film hybrid integration process，a prototypeofa digitally controlled and thick-film hybrid integrated switching power supply with 28 V input and 5 V/4O A output was designed.Principle analysis and parameter design were caried out focusing on the main circuit and the digital control circuit，and simulation wasconductedon the digital control loop with input voltage feedforward and output voltage feedback. Subsequent experimental results show that the prototype has excellent steady-state and dynamic characteristics，which canverifie thecorrctnessand feasibilityof the design scheme.

Key words：thick film hybrid integration；digital control；voltage feedforward；low voltage high current

0引言

目前，国内外厚膜电源以模拟控制的输出功率在120W以内的产品为主。（剩余5787字）