一种多相降压变换电路和电子设备
By introducing detection and control circuits into the multiphase buck converter circuit, the voltage of the fault detection capacitor is detected and the short-circuit fault buck circuit is isolated, which solves the problem of the inability to isolate short-circuit faults in the prior art and improves reliability.
CN115549472BActive Publication Date: 2026-07-17XFUSION DIGITAL TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XFUSION DIGITAL TECH CO LTD
- Filing Date
- 2022-08-23
- Publication Date
- 2026-07-17
Smart Images
Figure CN115549472B_ABST
Abstract
本申请实施例公开了一种多相降压变换电路和电子设备，涉及电子技术领域，解决了现有的多相降压变换电路可靠性较低的问题。该多相降压变换电路包括多个并联的降压电路、检测电路、控制电路和驱动电路。其中，每个降压电路包括输入电容、开关单元、故障检测电容、电感和输出电容，开关单元包括第一开关组和第二开关组，故障检测电容的第一端电连接于第一开关组中两个相邻开关管的连接端，故障检测电容的第二端电连接于第二开关组中两个相邻串联开关管的连接端。控制电路用于根据故障检测电容的电压来确定降压电路是否发生短路，若确定多相降压电路中的任一相降压电路出现短路时，控制驱动电路停止驱动该短路所在的降压电路。
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