Abstract: A system includes a charge pump having an input coupled to a first voltage and an output at a second voltage, the second voltage greater than the first voltage. The system also includes an amplifier having a first input, a second input, and a third input, the first input coupled to the output of the charge pump, the second input coupled to the first voltage, the third input coupled to an input signal, the amplifier having an amplified output signal. The system also includes a maximum power detector coupled to the amplifier, the maximum power detector operable to determine whether the amplified output signal has reached a threshold output level and to reduce a power of the amplified output signal responsive to the determination.

Abstract: Accurate real-time monitoring of distribution networks becomes increasingly pivotal to ensure reliable and optimal operation of grid. Existing joint parameter-state estimation techniques predominantly focus on transmission systems, making their applicability to distribution systems challenging due to variations in available input data. Furthermore, the joint estimation techniques significantly suffer from computational complexity. Present disclosure provides a method and a system for personalized multi-subject text to image generation. The system first uses lossy Distflow equations and an inverse Physics-Informed Neural Network (iPINN) architecture for learning network voltage dynamics, drift matrix and network bus voltages from real-time bus power injection data and historical voltage data. Thereafter, the system determines a plurality of line parameters from the learnt drift matrix using a least-square optimization technique.

Abstract: An unmanned aerial vehicle includes a plurality of arms coupled along a body, each arm of the plurality of arms including: a linkage structure configurable in a first linkage state, a second linkage state, and a third linkage state. The vehicle can further include an actuation mechanism including: a ratchet gear having a contact surface that applies a lateral force against a leading link of the linkage structure to transition the linkage structure from the first linkage state to the second linkage state or the third linkage state; a bistable spring that transitions from a first spring state to a second spring state upon application of the lateral force against the leading link of the linkage structure; and a cable for straightening the linkage structure.

Abstract: A termination structure for a semiconductor device that may include a substrate having a first type dopant. A plurality of doped-wells having a second type dopant formed in the substrate. A plurality of trenches formed into the plurality of doped-wells, respective ones of the formed trenches exposing a bottom surface of the doped-well, and exposing side surfaces of the doped-well, and a material within respective ones of the formed trenches, wherein the material in respective ones of the formed trenches is surrounded by the exposed bottom surface of the doped-well of the respective formed trench and the exposed side surfaces of the doped-well of the respective formed trench.

Abstract: We herein describe a silicon-carbide (SiC) based power semiconductor device comprising: a drain region of a first conductivity type; a drift region of the first conductivity type disposed on the drain region, the drift region having a lower doping concentration compared to the doping concentration of the drain region; a body region of a second conductivity type, opposite to the first conductivity type, disposed over the drift region; a contact region of the first conductivity type, disposed within the body region; a source Ohmic contact being disposed on the source region; and one or more trench gate regions being in contact with the source region, the body region and the drift region. Each of the one or more trench gate regions are configured to form a channel region in the body region between the source region and the drift region.

Abstract: The uncertainty of availability and risk associated with the cost of power procurement hinders the consumer from using new sources of supply/storage devices or taking part in the competitive power markets or procuring power from green energy resources. Present disclosure provides a method and a system for optimal scheduling of power sources for meeting electricity demand of enterprise. In particular, the system performs portfolio optimization formulation for cost, risk and carbon emission minimization for the enterprise. The portfolio optimization formulation simulates market scenario and guides in providing effective power purchase strategy for enterprise along with real-time adjustments. In particular, the level of risk to be considered along with cost of power procurement and carbon footprint determine portfolio allocation for each time block in portfolio optimization formulation.

Abstract: Techniques for script-based runtime assembly of object graphs using native instructions compiled by an ahead-of-time compiler are disclosed, including: generating, based on a data structure that defines a business process, a script including instructions for assembling an object graph that represents relationships between objects used by the business process; obtaining, at runtime by a business process execution engine compiled to native instructions by an ahead-of-time compiler, the script; assembling, at runtime by the business process execution engine, the object graph based at least on the instructions in the script.

Abstract: A data processing system implements techniques for operating and recovering databases that includes a plurality of replicas. The plurality of replicas includes a primary replica, a secondary replica, and a delta replica. The primary replica handles read and write operations, the secondary replica is a backup of the primary replica capable of read-only operations. The delta replica comprising a copy of the transactional log information of the primary replica but not the data. The system detects a failure of the primary and secondary replicas. The system instantiates a recovery workflow using the delta replica that includes initializing a second secondary replica; causing the second secondary replica to download backup data that represents a state of the primary replica prior to failure of the primary replica; updating the secondary replica using the backup data; and promoting the secondary replica to the primary replica.

Abstract: This disclosure relates generally to a bidirectional charging at an electric vehicle (EV) charging station by an energy model that uses electricity bought from the day-ahead market for charging the fleet of electric vehicles (EVs) and uses the intra-day market for arbitrage. The competitive pricing of wholesale electricity markets and distributed energy resource capability of EV fleets (in addition) provide a revenue channel through energy arbitrage. To effectively handle electricity price variations and the energy demand of the EV fleet, the present disclosure utilizes a graph representation-based learning agent (LA3_D) with two-stage encoding for day-ahead charge planning; and a priority order based greedy heuristic (GH_I) for intra-day arbitrage planning. Because the agent learns the planning policy of mapping EVs to charging operations over several problem instances, it is able to solve a given instance with limited sub-optimality when put to test at different levels of scale.

Abstract: Automatic transaction processing failover and reconciliation in a cloud-based environment includes monitoring the processing of transaction messages to identify exception events and determining whether to initiate a failover switch based upon the identified exception events. When a failover switch is initiated, the system identifies a target cloud-based system instance for the failover switch, changes a state of the affected cloud-based system instance to prevent the affected instance from receiving transaction messages, changes a state of the target instance to receive transaction messages intended for the affected instance, and performs a replication check between databases. The system reconciles transaction messages stored in the database of the cloud-based system instance to identify anomalies.

Abstract: This disclosure relates generally to method and system of generating optimal portfolio for seller bidding strategy in decoupled multi-energy markets. Energy sellers generate multiple forms of energy and can trade in specific energy markets by maximizing returns and minimizing risk of price fluctuations. Portfolio optimization across multi-energy markets lacks proper consideration of inter energy conversion efficiencies, market price risks, and asset constraints. The present disclosure provides to multi-energy markets prior to bidding day at least one energy type available with a seller, a bidding price of corresponding energy type, and at least one energy type required by a market participant to generate an optimal portfolio. The seller determines a risk factor for energy type in the multi-energy markets and then computes a total risk for each energy type. The optimal portfolio splits the generated volume of each energy type to bid at every timeslot of the multi-energy markets.

Abstract: This disclosure provides a system and method for flexibility based profit allocation for aggregator with distributed energy resources (DERs). The method of the present disclosure considers an aggregation model that allows an aggregator to orchestrate a set of heterogeneous DERs while enabling energy exchange among subscribed DERs and to participate in a day-ahead market. Further, a flexibility index is used to quantify the flexibility offered by a DER and a novel profit allocation model is proposed based on the flexibility index. Efficacy of the proposed models is demonstrated by evaluating their performance on a group of heterogeneous DERs using data traces from real-world electricity market.

Abstract: The disclosure relates generally to methods and systems for real-time voltage stabilization of electrical distribution networks with non-linear power flows. Existing real-time voltage control techniques are neither performance nor stability guarantees. The present disclosure proposes an online robust control algorithm, which operates without knowing an exact information of the line-parameters and resolves the voltage stability problem. In the proposed method a load data, a distributed energy resources (DER) data, and a network data of an electrical distribution network is obtained, to obtain a voltage profile at each time-step of the electrical distribution network. Next, line-parameters of the electrical distribution network are predicted using an on-line convex optimization technique and a Gauss-Seidel technique.

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.

Abstract: The embodiments of present disclosure address a need of a framework to holistically utilize storage capacity of an Energy Storage System (ESS) to serve forecast errors of several Renewable Energy Generators (REGens) participating in a day-ahead market. Embodiments herein provide a method and system for optimizing the operation and price of an Energy Storage as a Service (ESaaS) framework. In anticipation of the forecast errors from REGens, the ESS operator takes suitable countermeasures such as charging/discharging of storage system through market transactions. This is done in a way to reduce imbalance in the market commitments made by individual REGens without reserving any storage volume for each REGen. Further, the system is configured to schedule the storage, determine the settlement volumes, and decide the service prices. The disclosed ESaaS framework is beneficial for all entities such as REGens (revenue outflow decreases), system operator (imbalance volume reduces), and ESS (revenue earned increases).

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: An aspect of the present disclosure facilitates secured access to protected resources. In one embodiment, a system (e.g., identity provider) receives, from an application service operating on a cloud node of a first cloud, a token request to access a protected resource hosted on a second cloud. The system generates a cloud web token containing a resource identifier of the protected resource, an application identifier associated with the application service and a node identifier of the cloud node. The system sends the cloud web token to the cloud node. Upon receiving, from the application service, an access request containing the resource identifier and the cloud web token, the system checks whether the cloud web token contained in the access request is valid. The system allows access to the protected resource if the cloud web token is determined to be valid, and denies access to the protected resource otherwise.

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.

Abstract: An integrated circuit (IC) includes a semiconductor substrate and a mold compound on the semiconductor substrate. The IC also includes an acoustic signal generator between the mold compound and the semiconductor substrate. The acoustic signal generator is configured to transmit an acoustic signal having a predetermined set of frequencies through at least one of the semiconductor substrate or the mold compound.