低压差线性稳压器
By introducing a voltage settling rate control circuit into the low-dropout linear regulator, the settling rate of the reference voltage is controlled, which solves the problem of output voltage fluctuation, improves the stability and transient response of the circuit, and reduces noise and ripple.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SG MICRO HARBIN CO LTD
- Filing Date
- 2024-12-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing low-dropout linear regulators exhibit large output voltage fluctuations and slow recovery times during voltage fluctuations or load switching, resulting in poor power supply stability.
By introducing a voltage set-up rate control circuit, including a signal superposition module, a sampling capacitor, a current generator, and a negative feedback adjustment module, the set-up rate of the reference voltage is controlled so that it follows a set rate curve. The negative feedback adjustment module is used to adjust the pull-down current to match the pull-up current rate, ensuring stable output voltage.
This achieves a constant output voltage build-up rate, improving circuit stability and transient response speed, and reducing output noise and ripple.
Smart Images
Figure CN119645191B_ABST