Monolithic Power Systems. has been granted a patent for a control method in multi-phase switching converters. The method involves a master phase and slave phases, utilizing a pulse signal to manage charge and discharge currents, enabling efficient voltage conversion through coordinated control of capacitors and switches. GlobalData’s report on Monolithic Power Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Monolithic Power Systems, Power MOSFET SMPS was a key innovation area identified from patents. Monolithic Power Systems's grant share as of July 2024 was 76%. Grant share is based on the ratio of number of grants to total number of patents.
Multi-phase switching converter control method and system
The patent US12074518B2 describes a multi-phase switching converter designed to efficiently convert an input voltage into an output voltage through a structured arrangement of switching phases. The converter includes a master phase and at least one slave phase, with the slave phases being activated based on a phase additional signal. A master controller generates a control signal for the master phase, while a pulse generator produces a pulse signal with a 0.5 duty cycle. Each slave controller is responsible for generating control signals for their respective slave phases, utilizing a system of capacitors and current ratios that vary according to the number of slave phases being activated. The design allows for dynamic adjustment of charge and discharge currents, enabling efficient operation under varying load conditions.
The claims further detail the operational mechanics of the converter, including the specific configurations of the slave controllers, which feature circuits for charging and discharging capacitors based on the pulse signal's logic levels. The system incorporates comparison circuits to assess voltage levels across the capacitors, generating enable signals for the switches in the slave phases. The patent outlines various configurations for the charge and discharge current ratios when adding one, two, or three slave phases, ensuring that the converter can adapt to different operational requirements. Additionally, the control method described emphasizes the systematic approach to managing the switching phases, including resetting voltage levels and generating enable signals based on voltage comparisons, thereby enhancing the converter's performance and reliability.
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