Abstract: A data processing system implements techniques for provisioning and operating databases including receiving a request to provision a new database that includes multiple replicas. The data processing system provisions the new database including the plurality of replicas. The plurality of replicas includes a primary replica, one or more secondary replicas, and one or more delta replicas. The primary replica is configured to handle read and write operations. The one or more secondary replicas include a copy of data and transactional log information of the primary replica and are unable to handle write operations. The one or more delta replicas are a copy of the transactional log information of the primary replica and are unable to handle read operations or write operations.

Abstract: A device includes a first ramp generator having a first ramp generator output configured to provide a first ramp, a second ramp generator having a second ramp generator output configured to provide a second ramp, and a third ramp generator having a third ramp generator output configured to provide a third ramp. The first ramp is a sawtooth voltage waveform having a first common mode voltage and a first peak-to-peak voltage. The second ramp is a sawtooth voltage waveform having a second common mode voltage and a second peak-to-peak voltage. The third ramp is a sawtooth voltage waveform having a third common mode voltage and a third peak-to-peak voltage. A frequency of the second ramp is approximately equal to a frequency of the third ramp, and the frequency of the third ramp is approximately double a frequency of the first ramp.

Abstract: An example integrated circuit includes: a substrate and a first metal fuse layer on the substrate, the first metal fuse layer having first and second electrical contacts, the first electrical contact adapted to be coupled to an input terminal, the second electrical contact adapted to be coupled to a diode. The example integrated circuit further includes a second metal fuse layer on the substrate, the second metal fuse layer having third and fourth electrical contacts, the third electrical contact coupled to the second electrical contact and adapted to be coupled to the diode, the fourth electrical contact coupled to a shunt circuit.

Abstract: Capacitively isolated current-loaded or current-driven charge pump circuits and related methods transfer electrical energy from a primary side to a secondary side over a capacitive isolation boundary, using a controlled current source to charge isolation capacitors with constant current, as opposed to current impulses, while maintaining output voltage within tolerance. The charge pump circuits provide DC-to-DC converters that can be used in isolated power supplies, particularly in low-power applications and in such devices as sensor transmitters that have separate electrical ground planes. The devices and methods transfer electrical energy over an isolated capacitive barrier in a manner that is efficient, inexpensive, and reduces electromagnetic interference (EMI).

Abstract: This disclosure relates generally to a system and method for transactive energy (TE) market model. Existing TE models either consider market without a network simulation model or both the market model and the network simulation model are considered in a single formulation which makes the computation complex. The disclosed system considers both the power flow simulation of the network and the market model in a sequence. In other words, the disclosed system decouples the market model and network model to reduce the computational complexity at the same time without sacrificing on the technical feasibility of the solution.

Abstract: Processes and apparatuses for converting carbon dioxide into hydrocarbons. Carbon dioxide and coke are reacted in a reaction zone to produce carbon monoxide. The Carbon monoxide and a hydrogen stream are reacted to produce methanol. The methanol is reacted in reaction zone to produce ethylene and propylene. The hydrogen and the oxygen can be produced in an electrolysis zone that separates water into hydrogen and oxygen.

Abstract: An ad collision machine can be configured to evaluate collision queries for possible ad collisions and is associated with an ad datacenter configured to evaluate and respond to bid requests on behalf of a plurality of advertisers. The ad collision machine can comprise a plurality of nodes and a data cache containing a plurality of user ID—campaign ID keys representing recently submitted bids in response to bid requests. Once a selected node receives a collision query, a user ID—campaign ID key is retrieved from the collision query. If the first key is not found in the data cache, it is written to the data cache by the node and the ad collision machine returns that user ID—campaign ID pair as available to be bid on.

Abstract: A circuit includes a transformer configured with a primary winding and a secondary winding that are driven from a voltage supplied by a thermoelectric generator (TEG). The circuit includes a bipolar startup stage (BSS) coupled to the transformer to generate an intermediate voltage. The BSS includes a first transistor device coupled in series with the primary winding of the transformer to form an oscillator circuit with an inductance of the secondary winding when the voltage supplied by the TEG is positive. A second transistor device coupled to the secondary winding of the transformer enables the oscillator circuit to oscillate when the voltage supplied by the TEG is negative. After startup, a flyback converter stage can be enabled from the intermediate voltage to generate a boosted regulated output voltage.

Abstract: Silicon oxide based materials, including composites with various electrical conductive compositions, are formulated into desirable anodes. The anodes can be effectively combined into lithium ion batteries with high capacity cathode materials. In some formulations, supplemental lithium can be used to stabilize cycling as well as to reduce effects of first cycle irreversible capacity loss. Batteries are described with surprisingly good cycling properties with good specific capacities with respect to both cathode active weights and anode active weights.

Abstract: A machine detects a request to execute a transaction specified by a first set of user inputs. The machine determines, based on the first set of user inputs that specified the transaction, that the request to execute the transaction is to be verified with a corresponding challenge prompt that is to be generated for the request to execute the transaction. The machine then generates the challenge prompt that corresponds to the request to execute the transaction specified by the first set of user inputs that specified the transaction, and the machine causes presentation of the generated challenge prompt that corresponds to the request to execute the transaction. In response to the presented challenge prompt, the machine may receive a second set of user inputs. Based on the second set of user inputs, the machine then generates an indication of whether the request is verified.

Abstract: In some examples, a circuit includes an amplifier, a resistor, and a damping network. The amplifier has an amplifier output and first and second amplifier inputs. The first amplifier input is adapted to be coupled to a first terminal, and the second amplifier input is configured to receive a reference voltage. The resistor is coupled between the amplifier output and the first amplifier input. The damping network is coupled between the amplifier output and the first terminal.

Abstract: Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two-step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions.

Abstract: A data processing system implements techniques for provisioning and operating databases including receiving a request to provision a new database that includes multiple replicas. The data processing system provisions the new database including the plurality of replicas. The plurality of replicas includes a primary replica, one or more secondary replicas, and one or more delta replicas. The primary replica is configured to handle read and write operations. The one or more secondary replicas include a copy of data and transactional log information of the primary replica and are unable to handle write operations. The one or more delta replicas are a copy of the transactional log information of the primary replica and are unable to handle read operations or write operations.

Abstract: Methods, systems, and devices for wireless communication are described. A data layer at a user equipment (UE) may provide information associated with an uplink message to a modem power manager to determine whether to keep resources which are brought up by the scheduler or to power them off for transmitting the uplink message. For example, the data layer may indicate a radio access technology, a subscriber identifier, and a bearer type associated with the uplink message, which may enable the modem power manager to identify which radios to wake up (e.g., or avoid putting to sleep). Utilizing the information may enable the modem power manager to determine whether the wakeup is related to uplink data, acquire information to support the wakeup with resources indicated by the information, and avoid putting resources to sleep if the scheduled and the unscheduled wakeup resource requirements match.

Abstract: A switching amplifier includes a first portion of a power stage; a second portion of a power stage; a pulse-width modulation (PWM) control loop coupled to control inputs of the first portion of the power stage; and a linear amplifier coupled to control inputs of the second portion of the power stage. The PWM control loop controls a first switch and a second switch of the first portion of the power stage. Between current terminals of the first switch and the second switch is a first signal output of the switching amplifier. The linear amplifier controls a third switch and a fourth switch of the second portion of the power stage. Between current terminals of the third switch and the fourth switch is a second signal output of the switching amplifier.

Abstract: In a described example, a circuit includes a sensor, a controller and an amplifier. The sensor has a sensor input and a sensor output. The sensor input is adapted to be coupled to a chassis of a switch-mode power supply (SMPS). The controller has an input, a timing output and a level output. The input of the control circuit is coupled to the sensor output. The amplifier has a timing control input, a level control input and an amplifier output. The level control input is coupled to the level output of the controller. The timing control input is coupled to the timing output, and the amplifier output is coupled to the sensor input. The amplifier is configured to provide compensation pulses at the amplifier output having magnitude and timing to reduce common-mode noise on the chassis.

Abstract: In described examples, a system (e.g., a light-emitting diode dimmer system) includes a switching device coupled to a switching controller. The switching controller generates a control signal, which includes a low frequency signal (e.g., for controlling a dimming function) and a switching signal. An active electromagnetic interference filter (AEF) is coupled to the DC source. An active shunt is coupled to a power input node of the switching device and is configured to selectively couple a shunt current to the power input node of the switching device in synchronization with the low frequency signal (e.g., which can reduce, if not also eliminate, a saturation time of the AEF and improve the performance of the AEF).

Abstract: A method includes charging a capacitor of a power inverter to a direct current (DC) input voltage from an input terminal of the power inverter. The capacitor has first and second terminals. The method also includes providing a first voltage at an output terminal of the power inverter at a first time by controlling one of either: an output switch that selectively couples the output terminal to either the first terminal or the second terminal; or a set of input switches that selectively couple the first and second terminals to either the input terminal or a ground terminal. The method further includes providing a second voltage at the output terminal at a second time by controlling the other of the output switch or the set of input switches.

Abstract: In some examples, a circuit includes an amplifier, a resistor, and a damping network. The amplifier has an amplifier output and first and second amplifier inputs. The first amplifier input is adapted to be coupled to a first terminal, and the second amplifier input is configured to receive a reference voltage. The resistor is coupled between the amplifier output and the first amplifier input. The damping network is coupled between the amplifier output and the first terminal.

Abstract: Described embodiments include an audio amplifier circuit that includes a first amplifier having a differential first amplifier input adapted to be coupled to an audio input source, a multiplexer having first and second mux inputs, a control input and a mux output. The first mux input is coupled to the differential amplifier output. There is a signal generator having a generator input coupled to the mux output. There is also a driver circuit having a driver circuit input and a driver circuit output, the driver circuit input coupled to the generator output, and a second amplifier having a first error input coupled to a current sense terminal that is configured to provide a voltage proportional to a current supplied from a power supply terminal, and a second error input coupled to a current limit terminal configured to provide a reference voltage proportional to a current limit value.