Abstract: A liquid transfer assembly includes a housing that has a supply port, a return port and a fill port each extending into an interior of the housing. A shut off valve is movably integrated into the housing and the shut off valve is movable between a first condition and a second condition. A trigger is movably integrated into the grip and the trigger is in communication with the shut off valve. The shut off valve is actuated into the second condition when the trigger is depressed. An inertial pump is movably disposed within the housing and the inertial pump is charged with a handle to pump a fluid in a first container into the second container when the trigger is depressed. A priming pump is integrated into the housing for priming the inertial pump when the priming pump is manipulated.

Abstract: A momentum pump apparatus for mechanically pumping fluids includes a pump housing defining a housing inside. A housing front side has a fill aperture extending through to the housing inside. A housing back side has a supply aperture extending through to the housing inside. A fluid line is coupled within the pump housing and is in fluid communication with the supply aperture and the fill aperture. A pump is coupled within the pump and is in fluid communication with the fluid line to bring fluid from the supply aperture to the fill aperture. A gear system is coupled within the pump housing and includes a weighted disc to maintain momentum once spinning. The gear system is in operational communication with the pump. A handle assembly is coupled to the pump housing and is in operational communication with the gear system to operate the pump.

Abstract: A power-limit protection circuit with an efuse element. The power-limit protection circuit has an efuse element coupled between a first terminal and a second terminal. The power-limit protection circuit judges whether a calculated power signal defined from a current signal flowing through the efuse element and a voltage signal at a terminal of the efuse element is larger than a predetermined power threshold. When the calculated power signal is larger than the predetermined power threshold, the power-limit protection circuit increases an impedance of the efuse element to limit the current signal between the first terminal and the second terminal such that the power delivered through the efuse element is limited within the predetermined power threshold.

Abstract: A method for driving an LED lighting device includes receiving an input voltage from a battery unit and converting the input voltage into a driving current to drive the LED lighting device. The method further includes detecting whether the battery unit is in a low battery state. When the low battery state of the battery unit is detected, the driving current is reduced.

Abstract: A method for driving an LED lighting device includes receiving an input voltage from a battery unit and converting the input voltage into a driving current to drive the LED lighting device. The method further includes detecting whether the battery unit is in a low battery state. When the low battery state of the battery unit is detected, the driving current is reduced.

Abstract: Insulating ribs are formed into one or more portions of a housing that encloses circuitry of an electrical device. Components mounted on a board are separated according to whether they are related to a primary side of a power transformer or a secondary side. Primary related components are typically mounted on the primary side of an isolation slot formed into a circuit board and components related to the secondary are mounted on the other side. The insulating ribs are strategically placed to protrude through the slots when circuit board is mounted to the housing portion. Thus, when the housing portion is joined to another housing portion, which also may include insulating ribs strategically placed, the ribs increase the breakdown voltage of the boundary.

Abstract: Insulating ribs are formed into one or more portions of a housing that encloses circuitry of an electrical device. Components mounted on a board are separated according to whether they are related to a primary side of a power transformer or a secondary side. Primary related components are typically mounted on the primary side of an isolation slot formed into a circuit board and components related to the secondary are mounted on the other side. The insulating ribs are strategically placed to protrude through the slots when circuit board is mounted to the housing portion. Thus, when the housing portion is joined to another housing portion, which also may include insulating ribs strategically placed, the ribs increase the breakdown voltage of the boundary.

Abstract: A pair of back-to-back-coupled zener diodes is coupled from the input to the output of each leg of a common mode choke used in a LC circuit for reducing EMI into the power supply of an electrical device. The reversed biased zener diode of each pair breaks down when ringing voltage amplitude resulting from a voltage surge applied at the inputs of the common mode choke exceeds the breakdown threshold voltage of the zener diode. Transorb devices may be substituted for the back-to-back-coupled diode pairs.

Abstract: Insulating ribs are formed into one or more portions of a housing that encloses circuitry of an electrical device. Components mounted on a board are separated according to whether they are related to a primary side of a power transformer or a secondary side. Primary related components are typically mounted on the primary side of an isolation slot formed into a circuit board and components related to the secondary are mounted on the other side. The insulating ribs are strategically placed to protrude through the slots when circuit board is mounted to the housing portion. Thus, when the housing portion is joined to another housing portion, which also may include insulating ribs strategically placed, the ribs increase the breakdown voltage of the boundary.

Abstract: A pair of back-to-back-coupled zener diodes is coupled from the input to the output of each leg of a common mode choke used in a LC circuit for reducing EMI into the power supply of an electrical device. The reversed biased zener diode of each pair breaks down when ringing voltage amplitude resulting from a voltage surge applied at the inputs of the common mode choke exceeds the breakdown threshold voltage of the zener diode. Transorb devices may be substituted for the back-to-back-coupled diode pairs.

Abstract: A client computer stores data on a server at a remote location. The server receives a request to start an upload session and transmits a session key to the client computer. The server receives logon information and a hardware identification from the client computer and verifies the client computer's authenticity. The server receives a start upload request from the client computer and updates an upload history for the client computer. The server receives an upload command from the client computer and the upload command includes a file name. The server sends a file identification to the client computer, the file identification corresponding to the file name. The server receives a file corresponding to the file name from the client computer and transfers the file to an attached storage. The server receives a finish upload command from the client computer.

Abstract: A voltage divider splits the input voltage to be regulated between the input voltage node and the dead time pin of a TL494 voltage regulator. Thus, the duty cycle limit varies in inverse proportion to the input voltage node. Accordingly, the duty cycle percentage limit is reduced when the input voltage to be regulated is a relatively high voltage as compared to use in a circuit where the voltage to be regulated is comparatively low with respect to the input voltage range specification for the supply. A small signal transistor is connected in series with the output driver(s) of the TL494 to achieve a safe shutdown condition of the TL494, thereby preventing the output driver(s) from turning on the main power transistor in the absence of adequate Vcc voltage.