Abstract: A caged phosphine product is provided which can act as a ligand to form a metal complex. The metal complex can be used as a catalyst.

Abstract: A power factor correction booster circuit for connection to an alternating current (AC) power source including a first circuit portion arranged to be active over a first AC half cycle of the power source, the first circuit portion including: a first AC input node in connection with a source node of a first power transistor, a first node of an inductive element in connection with a drain node of the first power transistor, a second node of the inductive element in connection with a drain node of a second power transistor, a second AC input node in connection with a source node of the second power transistor, an anode of a first semiconductor diode element in connection with the second node of the inductive element, a cathode of the first semiconductor diode element in connection with a first node of a first output capacitor element, and a second node of the first output capacitor element in connection with the second AC input node, wherein the first and second power transistors are controllable to switch the f

Abstract: A high frequency power transformer including a first winding, a second winding and a core, wherein: the core is arranged to encompass at least a portion of the second winding, the second winding includes at least two winding apertures that pass through the second winding, and the first winding is arranged to pass through the at least two winding apertures.

Abstract: A composite inductor/capacitor including spaced apart sheets of conductive material formed into a spiral with the sheets being spaced apart by a dielectric material with terminals being provided on opposing sheets at opposite ends. A gaped or ungapped ferrite core may form a magnetic loop path about the component Multiple conductive layers may be used to vary capacitance, inductance and load handling. The component may find application in high frequency (above 20 kHz) power converters (such as series-resonant power converters, phase-shifted Zero Voltage Transition full-bridge converters, asymmetric half-bridge ZVT converters or parallel-resonant converters), high frequency induction heater circuits, high frequency welder circuits and the like.

Abstract: A power component magazine and power components for the magazine utilise a common foam factor enabling one magazine to accommodate a range of power components of different capacity. A wiring system is employed that simplifies wiring of the magazine during assembly. The magazine construction provides protection against incorrect power components being inserted in a magazine.

Abstract: A switched mode power supply allowing a half bridge converter to be use alone or in combination with another converter to form a full bridge converter. A common controller may be used for either half bridge or full bridge configurations. The modular approach simplifies design for a range of power supplies and reduces costs.

Abstract: A three phase full resonant cyclo-converter suitable for converting a three phase AC supply to a DC output. In one embodiment the cycloconverter controls switching frequency to control converter output and adjusts phase on times for power factor correction. A switching sequence is employed which provides resonant switching to reduce losses and component ratings. The converter provides high conversion efficiency with a simple power component design.

Abstract: In a method for making bisphosphonates by reacting a carbonyl compound with a phosphorus halide, the reaction is carried out in a solvent/carrier system which is a mixture of an amine hydrochloride, phosphorous acid and optionally phosphoric acid.

Abstract: In a method for making bisphosphonates by reacting a carbonyl compound with a phosphorus halide, the reaction is carried out in a solvent/carrier system which is a mixture of an amine hydrochloride, phosphorous acid and optionally phosphoric acid.

Abstract: A test data system includes a first computer system that has an electronic logbook. Test results are entered into the electronic logbook by the user/test person. The electronic logbook contains the e-mail address of a logbook program in a second computer system. The test results are forwarded by e-mail to the logbook program, which parses the test results and formats them for the entry in a test results database of a test management system. A test management system program is run to update the test results database with the test results and sends confirmation and/or any error messages back to the user at the first computer system.

Abstract: A computer based data analyzing system includes a memory storing a plurality of different log files. The memory is accessed to select a group of log files for simultaneous display in corresponding windows of a display device. A scroll command accesses the memory to simultaneously scroll the group of log files displayed in the corresponding windows with respect to a common parameter, such as a time stamp.