Intersil Americas Inc.

Texas Instruments Corporation

Vce IP Holding Company LLC

Wei Dong

Kun Xing

Steven Patrick Laur

Mehul Dilip Shah

John Stuart Kleine

Andrew Marshall

Hiep V Tran

Hugh Thomas Mair

Uming U Ko

Eric Magne Solie

Wenkai Wu

Xuening Li

Lin Sheng

Arthur O Beall, Iii

Xiao Xu

Aspects of the present disclosure involve systems and methods for providing extensibility of one or more APIs of a computing system management interface to allow a user of the management interface to dynamically generate new interfaces for data attributes from one or more underlying hardware components of the computing system. In one particular embodiment, a management interface is configured to receive a configuration file from a user of the system through a user interface. The configuration file may define or otherwise indicate a type of API utilized by the management interface to communicate with components of the computing system and receive information concerning those components. The configuration file may also cause the management interface to update the identified API according to the update. By dynamically updating the number and type of APIs utilized by the management interface, the user may obtain information concerning the components of the computing system otherwise not previously available.

Dynamically updating APIS based on updated configuration file of a computing system

One embodiment of the invention includes regulation voltage system for a power supply system. The system includes a current sense system configured to generate a sense signal that represents an output current of the power supply system that is supplied to a load. The system also includes a positive voltage droop controller configured to provide a regulation voltage to the power supply system, the positive voltage droop controller setting the regulation voltage to one of a predetermined fixed reference voltage or a variable reference voltage based on the sense signal. The variable reference voltage can be less than the predetermined fixed reference voltage.

System and method for reducing output voltage of a power regulator under light load

Multiple characteristics of a DC-DC converter, such as its mode of operation (e.g., either forced continuous conduction mode, or discontinuous conduction mode), and an operational parameter (such as the dead-time between switching times of the output switching devices (upper and lower MOSFETs) of the converter, whose associated driver integrated circuit has a pin usage that leaves only a single pin available for auxiliary purposes, are programmed by a single pin-based digital and analog information extracting circuit that couples both digital information and analog information within the same control signal to the driver IC by way of only the one available pin.

Circuit for multiplexing digital and analog information via single pin of driver for switched MOSFETs of DC-DC converter

One embodiment of the invention includes a power regulator system. The system includes a switching system configured to generate an output voltage across a load based on a high-side switch coupling a power voltage to an output at an edge-trigger of a PWM control signal having an activation pulse-width of the high-side switch. The system also includes a switch driver system configured to set a duty-cycle of the PWM control signal such that the activation pulse-width of the PWM control signal is based on the power regulator system operating in one of a continuous conduction mode (CCM) and a discontinuous conduction mode (DCM). The edge-trigger of the PWM control signal can occur based on a relative magnitude of the output voltage and the power voltage while operating in the DCM.

Discontinuous conduction mode pulse-width modulation

A DC-DC voltage converter is provided that includes a plurality of power channels and a controller. Each power channel is configured to provide a voltage output to an output node of the converter. Each power channel also includes a first sensing circuit configured to provide a primary feedback signal indicative of an output current of the power channel. Each power channel further includes an auxiliary sensing circuit to provided one or more auxiliary feedback signals indicative of an output current of each of the respective other power channels. The controller is configured to control each of the power channels based at least in part on the primary feedback signal and the one or more auxiliary feedback signals.

DC-DC voltage converter

System and method for providing power to circuitry while avoiding a large transient current. A preferred embodiment comprises a distributed switch (such as switch arrangement) with a plurality of switches (such as switch) coupling a power supply to the circuitry. Each switch is individually controlled by a control signal and is turned on sequentially. Also coupled to each switch is a pre-driver circuit (such as pre-driver circuit). The pre-driver circuit comprises a potential adjust circuit (such as potential adjust circuit) that rapidly adjusts a voltage potential at the switch and a rate adjust circuit (such as the rate adjust circuit) that accelerates the power ramp-up across the switch once transient currents are no longer a concern. Adjusting the voltage potential so that the switch operates in a saturation mode increases an effective capacitance across the switch and thereby retarding the power ramp-up across the switch.

Potential and rate adjust header switch circuitry reducing transient current

Multiple characteristics of a DC-DC converter, such as its mode of operation (e.g., either forced continuous conduction mode, or discontinuous conduction mode), and an operational parameter (such as the dead-time between switching times of the output switching devices (upper and lower MOSFETs) of the converter, whose associated driver integrated circuit has a pin usage that leaves only a single pin available for auxiliary purposes, are programmed by a single pin-based digital and analog information multiplexing circuit that couples both digital information and analog information within the same control signal to the driver IC by way of only the one available pin.

A power management IC including a dual purpose pin, a fault detection system, and a fault signature system. The dual purpose pin performs a power management function during normal operation (e.g., a soft start pin coupled to an external capacitor, a set pin coupled to an external resistor, a frequency set pin coupled to a resistor-capacitor combination, etc.). The fault detection system senses any of multiple fault conditions and provides a corresponding fault indicator signal, each indicating a corresponding fault condition. The fault signature system generates a selected fault signature signal on the dual purpose pin, where each fault signature signal has a characteristic indicative of a corresponding fault condition. Thus, an existing pin on the IC is re-used to indicate the fault condition. The fault signature signal may be a unique voltage level, a unique charging rate, a unique frequency signal, or any a combination thereof.

Fault signature system for power management integrated circuits

A multi-phase DC-DC converter incorporates auxiliary resistor networks to feed back to the converter's supervisory controller voltages representative of secondary sensed currents associated with primary currents sensed relative to the common nodes of the respective phases, and derived from the output nodes for each phase. The auxiliary resistor network-coupling of these secondary sensed currents enables the controller to more completely take into account the influence of the currents of each channel on every other channel, whereby phase-balanced control of all converter channels is achieved, irrespective of symmetry of the integrated circuit layout of the different phases of the converter.

Multi-phase DC-DC converter using auxiliary resistor network to feed back multiple single-ended sensed currents to supervisory controller for balanced current-sharing among plural channels

The circuit and method for turning on an internal voltage rail includes: coupling a first transistor between a power supply node and an internal voltage rail node; mirroring a current from a second transistor to the first transistor during a turn-on time period; and coupling a control node of the first transistor to a bias voltage node after the turn-on time period. This solution permits current controlled turn-on of the first transistor, but a fully switched-on first transistor once turn-on is complete.

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Cary, NC, United States of America

Wei Dong