Example implementations include a method of obtaining an input voltage of a power converter circuit and a system voltage of the power converter circuit, obtaining a voltage rate gain based on an aggregate inductance of the power converter circuit, and in accordance with a determination that the input voltage and the system voltage are not equal, generating a rate offset voltage based on the voltage rate gain and the system voltage difference. Example implementations also include a device with a rate predictor device operatively coupled to an input voltage node and a system voltage node, and configured to obtain an input voltage of a power converter circuit and a system voltage of the power converter circuit, configured to obtain a voltage rate gain based on an aggregate inductance of the power converter circuit, and configured to, in accordance with a determination that the input voltage and the system voltage are not equal, generate a rate offset voltage based on the voltage rate gain and the system voltage difference.

Disclosed is a transport refrigeration system including: an engine that is dedicated to the transport refrigeration system; a primary battery that is dedicated to the transport refrigeration system, the primary battery being electrically connected to the engine; and a jumper battery electrically connected to the primary battery, the jumper battery configured to automatically boost the primary battery when the primary battery fails to start the engine.

A powered surgical stapling assembly comprising a motor, an end effector, a sensor, a display, and a control circuit is disclosed. The end effector comprises a first jaw and a second jaw movable relative to the first jaw. The end effector is configured to clamp tissue between the first jaw and the second jaw. The sensor is configured to measure a parameter of the tissue clamped within the end effector. The control circuit is configured to monitor the parameter sensed by the sensor and identify when the monitored parameter stabilizes within a stabilization range. The monitored parameter is considered stable when a rate at which the monitored parameter changes falls below a predetermine threshold rate of change. The control circuit is further configured to display to a user when the parameter stabilizes.

Battery modules with anti-arcing, hot swapping, and/or self-disabling features are provided, as are systems and methods related thereto. For example, an electrical power system configured to provide backup electrical power to a load may include a battery rack having a bus configured to provide power. The system may include a battery module configured to couple with the bus and receive power therefrom, the battery module may include battery cells coupled to a pre-charge electrical path and a main electrical path, and a module controller configured to: detect that the battery module has been inserted into the battery rack, and pre-charge the battery cells of the battery module via the pre-charge electrical path until a voltage level of the battery cells may be synchronized with a voltage level of the bus.

In an embodiment, a method includes transmitting power to a media interface module via a base and receiving device information associated with any number of devices. The devices are connected to any number of communication ports of the media interface module. The method also includes configuring any number of network connections between the media interface module and the host device based on the device information. The method also includes establishing any number of communication sessions between the devices and the host device via the communication ports after the network connections are configured.

Power systems and methods of using the same to deliver power. A power system referenced herein can include a housing capable of attaching to a workstation, one or more cradles or mounting fixtures to receive at least one energy storage device, electronic circuitry to communicate status of the at least one energy storage device, state of charge of the at least one energy storage device, and/or overall health of the at least one energy storage device, and one or more electrical connectors to allow the at least one energy storage device to charge and/or discharge and communicate with the electronic circuitry, with said housing having an internal power supply and charge circuitry, said power supply capable of receiving input power from an external AC or DC power source; wherein the power system is configured to deliver power to the workstation.

Aspects of the disclosure relate generally to uninterruptible power supply units for systems requiring back up power. Each unit may include UPS circuitry for controlling charging and allowing discharging of a battery. The UPS circuitry may includes a controller and a plurality of metal-oxide semiconductor field effect transistors (“MOSFET”) switches. The MOSFETs may include charging and discharging MOSFETs arranged in series with the battery all driven by a single gate driver, such as a controller. In this regard, the controller may limit the charging current though all of the MOSFETs and charge the battery. The MOSFETs may be arranged such that if the charging MOSFET fails, the redundant charging MOSFET may continue to limit the charging current to the battery. Similarly, a redundant discharging MOSFET may be arranged in series with a discharging MOSFET in order to continue to provide discharging current if the discharging MOSFET fails.

In an embodiment, an airport electric vehicle charging system includes a current transducer electrically coupled with a power source; a solid state converter electrically coupleable with an aircraft at or near an airport gate and configured to provide and maintain power to the aircraft; and a controller. The system further includes a first feedback loop between the controller and the current transducer; a second feedback loop between the controller and the solid state converter; and a battery charger electrically coupled with the power source and configured to charge one or more electric vehicles. The first feedback loop provides a first feedback signal generated by the current transducer to the controller. The second feedback loop provides a second feedback signal generated by the solid state converter to the controller. The battery charger is configured to consume power from the power source in accordance with the first and second feedback signals.

An apparatus may include a bus that electrically couples an electrical load to redundant power feeds. The apparatus may also include at least one capacitive component electrically coupled between first and second rails of the bus via both a conductive path and a resistive path that has substantially greater resistance than the conductive path. In addition, the apparatus may include a switching mechanism electrically coupled between the first and second rails of the bus that causes the capacitive component to charge through the conductive path until a threshold voltage on the first rail of the bus is reached. When the threshold voltage on the first rail of the bus is reached, the switching mechanism may close the conductive path and force the capacitive component to charge through the resistive path. Various other systems and methods are also disclosed.

Disclosed is a power device including a connector, a power supply unit, a switch unit, a connector-side voltage detector, a connection determiner, and a switch controller. A battery is detachably connected to the connector. The power supply unit is provided between the connector and external equipment. The switch unit is provided to change over between power supply and power cut-off state unidirectionally from the connector to the power supply unit. The connector-side voltage detector detects a voltage of the connector-side of the switch unit. The connection determiner determines whether the battery is connected to the connector on the basis of the connector-side voltage. The switch controller controls the switch unit such that electric power is supplied unidirectionally from the connector to the power supply unit when the battery is connected.