Patent ID: 11929681
Assignee: RICHTEK TECHNOLOGY CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A scalable multi-phase switching converter, comprising:
a plurality of converter modules, which are correspondingly coupled to a plurality of inductors and which are configured to operably convert an input voltage to an output voltage by alternating multi-phase switching, wherein the plurality of converter modules are operable in and switchable among a plurality of operation modes, wherein each converter module includes:
a loop control unit, which is configured to operably generate a basic trigger pulse according to a feedback signal in master operation mode;
a setting pin, which is configured to operably receive a setting signal;
a trigger pin, which is configured to operably transmit or receive a multi-phase trigger pulse signal;
a switching control unit, which is configured to operably determine an operation mode and a phase serial order according to the setting signal in a setting mode, and wherein in master operation mode, the switching control unit is configured to operably generate the multi-phase trigger pulse signal at the trigger pin according to the basic trigger pulse, and wherein in slave operation mode, the switching control unit is configured to operably receive the multi-phase trigger pulse signal at the trigger pin, and wherein the switching control unit is configured to operably generate an ON-trigger pulse according to the multi-phase trigger pulse signal and the phase serial order; and
an ON-period determination unit, which is configured to operably generate a conduction control pulse according to the ON-trigger pulse, so as to control a corresponding one of the inductors to generate the output voltage;
wherein the trigger pins of the converter modules are coupled to each other.