A highly phased power regulation (converter) system having an improved control feature is provided. A controller, such as a digital signal processor or microprocessor, receives digital information from a plurality of power conversion blocks and transmits control commands in response to the information. The controller is able to change the mode of operation of the system and/or re-phase the power blocks to accommodate a dynamic load requirement, occasions of high transient response or detection of a fault. A compensation block within the controller is used to regulate the output voltage and provide stability to the system. In one embodiment, the controller is implemented as a PID compensator controller. In another embodiment, a microprocessor is able to receive feedback on its own operation thus providing enabling the controller to anticipate and predict conditions by analyzing precursor data.

System and method for highly phased power regulation using adaptive compensation control

An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is also electrically coupled across the first output port and is adapted to provide a path for current flowing through the first output port when the first transistor is in its non-conductive state. The integrated circuit chip additionally includes first driver circuitry for driving gates of the first and second transistors to cause the transistors to switch between their conductive and non-conductive states. The integrated circuit chip further includes first controller circuitry for controlling the first driver circuitry such that the first and second transistors switch between their conductive and non-conductive states to at least substantially maximize an amount of electric power extracted from an electric power source electrically coupled to the first input port.

Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods

A desired pattern may be cut into a stent preform by impinging a laser beam onto the stent preform. The laser beam is formed using a laser system comprising a resonator cavity for resonating laser radiation, a gain medium contained in the resonator cavity, a pump for periodically pumping the gain medium and an electro-optical modulator in communication with the resonator cavity. The laser system produces a radiation pulse for each pump period. Each radiation pulse is conditioned by suppressing at least a portion of the pulse. The pulse may also be modulated with an electro-optical modulator to produce a pulse train of ordered pulses of radiation. Each pulse train is output from the optical cavity as an output laser beam which is directed at the stent preform to cut a desired pattern in the stent preform.

Laser cutting of stents and other medical devices

Power semiconductor switching devices, power converters, integrated circuit assemblies, integrated circuitry, power current switching methods, methods of forming a power semiconductor switching device, power conversion methods, power semiconductor switching device packaging methods, and methods of forming a power transistor are described. One exemplary aspect provides a power semiconductor device including a semiconductive substrate having a surface; and a power transistor having a planar configuration and comprising a plurality of electrically coupled sources and a plurality of electrically coupled drains formed using the semiconductive substrate and adjacent the surface.

Power semiconductor switching devices, power converters, integrated circuit assemblies, integrated circuitry, power current switching methods, methods of forming a power semiconductor switching device, power conversion methods, power semiconductor switching device packaging methods, and methods of forming a power transistor

A highly phased power regulation (converter) system having an improved control feature is provided. A controller, such as a digital signal processor or microprocessor, receives digital information from a plurality of power conversion blocks and transmits control commands in response to the information. The controller is able to change the mode of operation of the system and/or re-phase the power blocks to accommodate a dynamic load requirement, occasions of high transient response or detection of a fault. In one embodiment, a microprocessor receives digital information and converted power from one or more power blocks. In this manner, the microprocessor is able to receive feedback on its own operation. The controller is also able to anticipate and predict conditions by analyzing precursor data. In this manner, the controller is able to modify the system as needed in anticipation of the forthcoming event.

System and method for highly phased power regulation

A sensor for measuring a current passing through a load. The sensor has a power transistor having a first terminal connected to substantially constant voltage and a second terminal connected to the load. The sensor can sample a voltage difference with a variable capacitor, and a controller can be configured to cause a variable capacitor in the current sensor to have a capacitance inversely proportional to a resistance of the power transistor, whereby a charge stored on the variable capacitor is proportional to the current passing through the power transistor when the sampling switches are opened. A comparator can compare the current through the power transistor to a known reference current to generate a digital output signal. The sensor can include a power transistor, reference transistor and amplifier connected and configured so as to generate a signal on a reference line having a current of known proportion to the current passing through the load.

Current measuring methods

A maximum power point tracking controller includes an input port for electrically coupling to an electric power source, an output port for electrically coupling to a load, a control switching device, and a control subsystem. The control switching device is adapted to repeatedly switch between its conductive and non-conductive states to transfer power from the input port to the output port. The control subsystem is adapted to control switching of the control switching device to regulate a voltage across the input port, based at least in part on a signal representing current flowing out of the output port, to maximize a signal representing power out of the output port.

Maximum Power Point Tracking Controllers And Associated Systems And Methods

Sensors for measuring current passing through a load

Ein Maximum Power Point Tracking-Controller umfasst einen Eingangsanschluss zur elektrischen Kopplung mit einer elektrischen Stromquelle, einen Ausgangsanschluss zur elektrischen Kopplung mit einer Last, eine Steuerschaltvorrichtung und ein Steuerungsuntersystem. Die Steuerschaltvorrichtung ist geeignet, wiederholt zwischen ihrem leitenden und nicht leitenden Zustand umzuschalten, um Leistung von dem Eingangsanschluss zu dem Ausgangsanschluss zu ubertragen. Das Steuerungsuntersystem ist geeignet, das Schalten der Steuerschaltvorrichtung zu steuern, um eine Spannung uber den Eingangsanschluss zu regeln, wobei die Regelung zumindest teilweise auf einem Signal basiert, das einen Stromfluss aus dem Ausgangsanschluss reprasentiert, um ein Signal zu maximieren, das Leistung aus dem Ausgangsanschluss reprasentiert.

Maximum Power Point Tracking Controller und zugeordnete Systeme und Methoden

A maximum power point tracking controller includes an input terminal for electrically coupling to an electrical power source, an output terminal for electrically coupling to a load, a control switching device, and a control subsystem. The control switching device is adapted to repeatedly switch between its conductive and non-conductive state, to transfer power from the input terminal to the output terminal. The control subsystem is adapted to control the switching of the control switch device to control a voltage across the input terminal, wherein the control is at least partially based on a signal representing a current flow from the output terminal so as to maximize a signal output from the output terminal represents.

Phong T. Nguyen

Papers

Current measuring methods

Maximum Power Point Tracking Controllers And Associated Systems And Methods

Sensors for measuring current passing through a load

Maximum Power Point Tracking Controller und zugeordnete Systeme und Methoden

Maximum power point tracking controller and associated systems and methods