Engineering

Latest Innovations

Photonic Crystal Biosensor with Integrated Liquid Handling and Fabrication Method

 

Photonic crystal (PC) sensors, and sensor arrays and sensing systems incorporating PC sensors are described which have integrated fluid containment and/or fluid...

Optical Frequency Up-Conversion of Femtosecond Pulses into Targeted Single Bands in the Visible and Ultraviolet

 

An apparatus and methods for generating a substantially supercontinuum-free widely-tunable multimilliwatt source of radiation characterized by a narrowband line...

Coherent Fiber Continuum Source Centered at 1040nm by In Situ Transform-Limited Pulse Compression

 

A method using standard, inexpensive components and software to generate ultra-short laser pulses of a quality currently available only from complex, costly...

Apparatus and Methods for Testing Micro Scale Samples Under Tension and Compression in SEM

 

Methods and apparatus for testing a microscale or nanoscale sample. A testing stage comprises a frame having first and second laterally opposing ends and first...

Near-Field Diffractive Microscope

 

A near-field microscope using one or more diffractive elements placed in the near-field of an object to be imaged. A diffractive covers the entire object, thus...

Temperature Jump Dynamics Microscope

 

An apparatus and methods for characterizing the response of a particle to a parameter that characterizes an environment of the particle. A change is induced in...

Control Methods and Circuits for Extremely Fast Response in Switching Power Converters

 

A method for accomplishing energy changes for a power converter to minimize an impact of a disturbance. The power converter includes energy storage and switches....

Commutation technique for an ac-to-ac converter based on state machine control

 

This invention is a technique that resolves current commutation challenges in various types of ac-ac switching power converters. It also applies to inverters and...

Startup Circuit For Power Converters With Arbitrarily Low Input Voltage

 

A startup circuit for starting a power converter for converting an input voltage to an output voltage includes a switch connected in series with a resistive...

Series-Input Parallel Output Multiple DC-DC Converter with Dynamic Current Sharing for High-Current DC Power Supply

 

The combination of a unique series-input parallel-output (SIPO) circuit configuration and a sensorless current mode (SCM) technique ensures automatic and nearly...

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