A V 2 Adaptive ripple compensation circuit for COT controlled buck converter
By designing an adaptive ripple compensation circuit in a V2COT-controlled buck converter, and using an RC filter to extract the inductor current ripple voltage and superimpose it onto the feedback voltage, the problems of system instability and poor transient response are solved, and faster transient response and stability are achieved.
CN115955094BActive Publication Date: 2026-06-26HUAZHONG UNIV OF SCI & TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAZHONG UNIV OF SCI & TECH
- Filing Date
- 2023-01-10
- Publication Date
- 2026-06-26
Smart Images
Figure CN115955094B_ABST
Abstract
The application aims to provide a V 2 The application discloses an adaptive ripple compensation circuit of a COT-controlled step-down converter, which can guarantee the stability of a power system and optimize the transient response speed of the system, and has the characteristics that the compensation circuit comprises a P-type MOS transistor PMOS, a first N-type MOS transistor NMOS, a second N-type MOS transistor NM1, a third N-type MOS transistor NM2, a first resistor R0, a second resistor R1, a third resistor R2, a fourth resistor Rs, a fifth resistor R3, a sixth resistor R4, a first capacitor Cout, a second capacitor C1, a third capacitor C2, a fourth capacitor Cs, an inductor L, a comparator CMP, a buffer BUF and an operational amplifier EA.
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