Abstract: An information handling system (IHS) includes temperature-compensated power control by a voltage regulation (VR) module to: (i) receive a monitored current (Imon) value from a current sensor integrated into the VR module; (ii) receive a temperature value from the temperature sensor also integrated into the VR module; (iii) determine a temperature-compensated Imon value based at least in part on the Imon value, the temperature value, and an empirically-derived temperature coefficient defined at the Imon value and the temperature value; and (iv) control the voltage-regulated power at least in part based on the temperature-compensated Imon value. The empirically-derived temperature coefficient adjusts for nonlinear portions of temperature coupling relationship between a portion of an integrated circuit (IC) die that can include the current sensor and the temperature sensor and a temperature experienced by by active portion of VR module.

Abstract: A voltage regulation (VR) module of an Information Handling System (IHS) operates a switching direct current to direct current (DC-DC) voltage regulation (VR) power circuit in a constant current mode at a constant current level. The VR module approximates the capacitance value of the output capacitive load at the output terminal of the switching DC-DC VR power circuit based upon a time interval for output voltage to reach a threshold. The VR module then operates the switching DC-DC power circuit in constant output voltage mode using one group of VR operating settings to optimize performance for the capacitance value of the output capacitive load.

Abstract: Systems and methods for individual phase temperature monitoring and balance control in a multi-phase voltage regulator may include a plurality of smart power stages including a first smart power stage and a second smart power stage and a voltage regulator controller. The voltage regulator controller may send a first control signal to the first smart power stage to enable the first smart power stage to send a first temperature of the first smart power stage to the voltage regulator controller during a first phase of a switching cycle. The voltage regulator controller may also determine that the first temperature received by the voltage regulator controller corresponds to the first smart power stage based on the first control signal. The voltage regulator controller may further send a second control signal to the second smart power stage to enable the second smart power stage to send a second temperature to the voltage regulator controller during a second phase.

Abstract: A voltage regulator power reporting offset system includes a monitored power reporting subsystem that determines a monitored power level, offsets the monitored power level using voltage regulator operation offset information to provide a first offset monitored power level, and reports the first offset monitored power level to voltage regulator operation components. A processor power reporting component receives the report of the first offset monitored power level from the monitored power reporting subsystem. A processor power reporting offset subsystem receives the report of the first offset monitored power level from the processor power reporting component, offsets the first offset monitored power level using the processor operation offset information to provide a second offset monitored power level that is different than the first offset monitored power level, and reports the second offset monitored power level to a processing system.

Abstract: Systems and methods for individual phase temperature monitoring and balance control in a multi-phase voltage regulator may include a plurality of smart power stages including a first smart power stage and a second smart power stage and a voltage regulator controller. The voltage regulator controller may send a first control signal to the first smart power stage to enable the first smart power stage to send a first temperature of the first smart power stage to the voltage regulator controller during a first phase of a switching cycle. The voltage regulator controller may also determine that the first temperature received by the voltage regulator controller corresponds to the first smart power stage based on the first control signal. The voltage regulator controller may further send a second control signal to the second smart power stage to enable the second smart power stage to send a second temperature to the voltage regulator controller during a second phase.

Abstract: A multiphase voltage regulator (VR) has a VR controller that performs automatic VR phase assignment and configuration for single or multi-output rails of an Information Handling System (IHS). VR power circuit has power stages selectably coupled to output voltage connection(s) or rail(s) that deliver electrical energy to information handling resource(s). VR controller is coupled to the VR power circuit and provides a first reference voltage (IREF) signal to the VR power circuit. VR controller identifies any power stages that return a load current monitor (IMON) signal that indicates that the respective power stage is coupled to the first IREF signal. VR controller regulates identified power stages of the VR power circuit during delivery of electrical power to information handling resource(s). Regulation is according to a VR configuration that is selected based on identified VR phases assigned to a first output voltage loop and associated with the first IREF signal.

Abstract: A method, a power control system, and an information handling system (IHS) for operating voltage regulators (VRs) in an IHS. The method includes detecting, via a VR controller, a real time current level of a processor and receiving a first temperature value from a temperature sensor. The VR controller calculates a modified current level based on the real time current level, the first temperature value and a pre-defined temperature value and applies the modified current level to the processor.

Abstract: A direct current (DC) power supply system performs a method of delivering electrical energy by a synchronous buck voltage regulator (VR) coupled to an information handling resource of an information handling system by switching between a high side (HS) control switch and a low side (LS) synchronous switch to regulate a direct current (DC) output voltage (VOUT) generated from an input voltage (VIN). Inductor current (IMON) values of the voltage regulator are measured during LS synchronous switch ON state. IMON values of the voltage regulator are synthesized during HS power switch ON state. A complete inductor current signal is generated that combines the measured and synthesized IMON values.

Abstract: Systems and methods for adaptive modulation of MOSFET driver key parameters for improved voltage regulator efficiency and reliability in a voltage regulator may include a power stage. The power stage may include a high side switch including a high side gate, a peak voltage detection circuit, and a high side driver strength modulator circuit. The high side driver strength modulator circuit may determine a high side driver strength level. The high side driver strength modulator circuit may also connect a subset of the set of high side gate drivers to the high side gate based on the high side driver strength level. The high side driver strength modulator circuit may also disconnect a remaining subset of the set of high side gate drivers from the high side gate.

Abstract: A voltage regulator for delivering power to a processor subsystem within an information handling system is disclosed. The voltage regulator includes an interface to an embedded controller for receiving a linear load line impedance and an intelligent load line controller. The intelligent load line controller may enable linear load line control, determine that a nonlinear load line condition is satisfied, and enable nonlinear load line control based on the determination that the nonlinear load line condition is satisfied.

Abstract: Systems and methods for individual phase temperature monitoring and balance control in a multi-phase voltage regulator may include a plurality of smart power stages including a first smart power stage and a second smart power stage and a voltage regulator controller. The voltage regulator controller may send a first control signal to the first smart power stage to enable the first smart power stage to send a first temperature of the first smart power stage to the voltage regulator controller during a first phase of a switching cycle. The voltage regulator controller may also determine that the first temperature received by the voltage regulator controller corresponds to the first smart power stage based on the first control signal. The voltage regulator controller may further send a second control signal to the second smart power stage to enable the second smart power stage to send a second temperature to the voltage regulator controller during a second phase.

Abstract: A direct current (DC) power supply system performs a method of delivering electrical energy by a synchronous buck voltage regulator (VR) coupled to an information handling resource of an information handling system by switching between a high side (HS) control switch and a low side (LS) synchronous switch to regulate a direct current (DC) output voltage (VOUT) generated from an input voltage (VIN). Inductor current (IMON) values of the voltage regulator are measured during LS synchronous switch ON state. IMON values of the voltage regulator are synthesized during HS power switch ON state. A complete inductor current signal is generated that combines the measured and synthesized IMON values.

Abstract: A voltage regulator may comprise a high-side switch and a low-side switch for delivering electrical current to the at least one information handling resource, a high-side driver configured to drive a high-side driving voltage for regulating a first electrical current of the high-side switch, a low-side driver configured to drive a low-side driving voltage for regulating a second electrical current of the low-side switch, and a control circuit configured to operate the at least one voltage regulator in both of a fixed dead time mode and an adaptive dead time mode.

Abstract: A method and an information handling system (IHS) perform current calibration of a multi-phase voltage regulator (VR) by using a calibrated operating phase to calibrate an unknown operating phase. A calibration controller, using a pulse width modulation (PWM) controller, enables a first unknown operating phase within a first converter sub-circuit in the multiphase VR. The calibration controller enables a calibrated circuit component electronically coupled to the first unknown operating phase. The calibration controller determines a target voltage for the first unknown operating phase based on sense component specifications. The calibration controller determines, for the first unknown operating phase, a sense voltage that identifies the first unknown operating phase as a first evaluated operating phase.

Abstract: In accordance with embodiments of the present disclosure, an information handling system may include an information handling resource, a voltage regulator, a non-transitory computer-readable medium, and a controller. The voltage regulator may be coupled to the information handling resource and configured to deliver electrical energy to the information handling resource. The a non-transitory computer-readable medium may have stored thereon curve fit information, the curve fit information including coefficients of a polynomial for approximating a parameter indicative of the power efficiency of the voltage regulator as a function of a measured output current of the voltage regulator. The controller may be coupled to the voltage regulator and configured to receive information indicative of an output power of the voltage regulator and, based on the information indicative of an output power of the voltage regulator and the curve fit information, calculate an input current of the voltage regulator.

Abstract: An information handling system (IHS) performs current calibration of a multi-phase VR using leakage current as a reference current. The IHS includes a multi-phase voltage regulator (VR) module coupled to an output port of a power supply unit (PSU). The VR module includes: a multi-phase VR having an integrated power stage that provides pulse width modulation (PWM) functionality for controlling operating phases of VR current in the multi-phase VR; and a digital controller coupled to the multi-phase VR. The controller: enables a known, high accuracy operating phase as loading calibrator for offset training; records a leakage current value as a reference current; enables a first unknown, low accuracy operating phase; determines, for the unknown operating phase, an offset value that provides a specified target current accuracy; updates an offset register for the unknown operating phase with the corresponding offset value; and disables the unknown operating phase.

Abstract: A voltage regulator includes circuitry for regulating a voltage output of the voltage regulator and a snubber circuit. The snubber circuit includes a switching device which is controlled to electronically connect or disconnect the snubber circuit with the circuitry of the voltage regulator device. The switching device may be controlled by a controller based on one or more parameters indicating a load of the voltage regulator device.

Abstract: To prevent cross-conduction when switching switches in switching circuitry for voltage regulation, a dead time may be maintained between turning off a switch and turning on a switch. The dead time may be determined based on a switching transition voltage and a voltage of the switching circuitry and may be implemented using a timer.

Abstract: To prevent cross-conduction when switching switches in switching circuitry for voltage regulation, a dead time may be maintained between turning off a switch and turning on a switch. The dead time may be determined based on a switching transition voltage and a voltage of the switching circuitry and may be implemented using a timer.

Abstract: A voltage regulation (VR) module of an Information Handling System (IHS) operates a switching direct current to direct current (DC-DC) voltage regulation (VR) power circuit in a constant current mode at a constant current level. The VR module approximates the capacitance value of the output capacitive load at the output terminal of the switching DC-DC VR power circuit based upon a time interval for output voltage to reach a threshold. The VR module then operates the switching DC-DC power circuit in constant output voltage mode using one group of VR operating settings to optimize performance for the capacitance value of the output capacitive load.