International Business Machines Corporation

Kennedy K Cheruiyot

James David Strom

Edward C McCain

Grant Paul Kesselring

Christian Jacobi

Alper Buyuktosunoglu

Ali Y Duale

Phillip John Restle

Tobias Webel

David Michael Friend

Andrew A Turner

Akil Khamisi Sutton

Eberhard Engler

Joel T Ficke

Sean Michael Carey

Pradeep Bhadravati Parashurama

Alejandro Alberto Cook Lobo

Kevin P Low

Yufei Wu

Daniel Kiss

Karl Evan Smock Anderson

Isidore G Bendrihem

Ian Krispin Carmichael

Gregory Scott Still

Michael Sperling

Paul David Muench

Eric Jason Fluhr

Kenneth A Van Goor

Michael Thomas Repede

Michael R Whalen

Embodiments include in response to monitoring a processor during operation, detecting a first number of throttling amounts in the processor, determining that the first number of throttling amounts fulfills a first condition regarding a throttling amounts threshold, and modifying a voltage level of the processor by a first amount. Embodiments include in response to modifying the voltage level of the processor by the first amount, detecting a second number of throttling amounts in the processor, determining that the second number of throttling amounts fulfills a second condition regarding the throttling amounts threshold, and modifying the voltage level of the processor by a second amount.

Dynamic guard band with timing protection and with performance protection

Embodiments include in response to monitoring a processor during operation, detecting a first number of core recovery events in the processor, determining that the first number of core recovery events fulfills a first condition for the first core recovery events threshold, and modifying a value of at least one droop sensor parameter of the processor by a first amount. The at least one droop sensor parameters affects a sensitivity to a voltage droop. In response to modifying the value of the droop sensor parameter by the first amount, a second number of core recovery events is detected in the processor. It is determined that the second number of core recovery events fulfills a second condition for a second core recovery events threshold, and the value of the at least one droop sensor parameter is modified by a second amount.

Aspects include monitoring for occurrences of selected events at a computer system, the monitoring by a processor that is coupled to the computer system. A list of event records for each of the selected events is built by the processor. The building of event records includes generating an event record for each occurrence of an event detected by the monitoring. The lists of event records for the selected events are merged into a merged list of event records that are in chronological order. A machine report for the computer system that includes the merged list of event records is stored.

Self-reporting and self-upgrading of enterprise systems

A management system monitors a set of objects of a user by wirelessly communicating with one or more location components associated with the objects, and each object of the set has a respective location component. The monitoring includes ascertaining by the management system, based at least in part on data obtained via wireless communication with the location component(s), a spatial centroid of the set and a spatial separation of an object in the set from the spatial centroid, and correlating the ascertained spatial centroid to a context classification of multiple context classifications. The management system further determines whether a difference between the ascertained spatial separation and the average spatial separation of the location component(s) for the correlated context classification exceeds an acceptable spatial separation tolerance. Based on the difference exceeding the acceptable tolerance, the management system provides an electronic alert to the user.

Set-based object management system

Embodiments include a technique for using a charge pump for a distributed voltage passgate with high voltage protection. The technique includes receiving a reference signal, and preventing the reference signal from passing through a passgate to a circuit, wherein the passgate is an NFET passgate. The technique also includes charging the passgate using a charge pump circuit above the reference signal, and regulating the charge pump circuit using a clock signal. The technique also includes controlling the passgate based at least in part on the charge pump circuit.

Charge pump for distributed voltage passgate with high voltage protection

A circuit for implementing a control voltage mirror is provided. A filter includes a filter capacitor connected to a control voltage and a distal side of the capacitor connected to a voltage reference. The control voltage mirror includes an operational amplifier having a positive input connected to the control voltage, and a negative input is connected to an output and coupled to the distal side of the capacitor. Voltage across the capacitor is held to be near or at zero volts, substantially eliminating capacitor leakage current.

Control voltage mirror circuit

A method and a phase locked loop (PLL) circuit for implementing compact current mode logic inductor capacitor voltage controlled oscillator for high speed communications, and a design structure on which the subject circuit resides are provided. The PLL circuit includes a current mode logic (CML) inductor capacitor (LC) Voltage Controlled Oscillator (VCO). The PLL circuit includes a reference circuit generates a virtual ground node for biasing noise sensitive components, providing level shifted VCO increment and decrement tuning values from a phase detector coupled by a respective resistor to tune a varactor of the LC VCO, and providing a loop filter function. The virtual ground node tracks a logic power supply noise, incurring no jitter penalty, and eliminating the need for a separate power supply for the PLL circuit.

Implementing compact current mode logic (CML) inductor capacitor (LC) voltage controlled oscillator (VCO) for high-speed data communications

A method and circuit for implementing dynamic voltage sensing and a trigger circuit, and a design structure on which the subject circuits resides are provided. The voltage sensing circuit includes a first quiet oscillator generating a reference clock, and a second noisy oscillator generating a noisy clock. A digital control loop coupled to the first quiet oscillator and the second noisy oscillator matches frequency of the first quiet oscillator and the second noisy oscillator. The reference clock drives a first predefined-bit shift register and the noisy clock drives a second predefined-bit shift register, where the second predefined-bit shift register is greater than the first predefined-bit shift register. When the first predefined-bit shift register overflows, the contents of the second predefined-bit shift register are evaluated. The contents of the second predefined-bit shift register are compared with a noise threshold select value to identify a noise event and trigger a noise detector control output.

Implementing integral dynamic voltage sensing and trigger

An oscillating circuit includes a charge pump, a loop filter and a voltage controlled oscillator. The charge pump and the loop filter generates a differential voltage signal. The loop filter is responsive to the differential voltage signal and generates a filtered differential voltage control signal that is proportional to the differential voltage signal. The voltage controlled oscillator is responsive to the filtered differential voltage control signal and generates a periodic signal that has a frequency that corresponds to the filtered differential voltage control signal.

Power supply noise insensitive charge pump, loop filter, VCO control, and VCO

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Rochester, MN, United States of America

Kennedy K Cheruiyot