Multi-phase switching voltage regulator and controller
By introducing first and second control loops into the controller of the multiphase switching voltage regulator, flexible switching between PWM and PFM is achieved, solving the problem of a single modulation scheme in existing voltage regulator designs and improving the regulation efficiency and flexibility of the voltage regulator.
Patent Information
- Application Number
- CN202511807462.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-20
- Filing Date
- 2025-12-03
- Publication Date
- 2026-06-23
AI Technical Summary
Existing voltage regulators cannot flexibly switch between pulse width modulation (PWM) and pulse frequency modulation (PFM) modulation schemes, resulting in insufficient design flexibility.
Design a controller for a multiphase switching voltage regulator, comprising a first control loop and a second control loop. The first control loop has a first set of coefficients for implementing PWM and a second set of coefficients for implementing PFM, and achieves phase current balance through the second control loop, enabling the controller to switch modulation schemes under different configurations.
It enables flexible switching between PWM and PFM for voltage regulators, provides low-cost, programmable, and flexible modulation methods, supports constant frequency and constant on-time modulation, and improves the regulation efficiency and flexibility of voltage regulators.