Abstract: A receiver for a serial data link, including an analog front end (AFE) including a continuous-time linear equalizer (CTLE) configured to receive an input signal from a transmitter, the CTLE including a first output node; a second output node; a plurality of programmable tail current sources configured to adjust a direct current (DC) offset between the first output node and the second output node; and a calibration circuit including: a slicer configured to output a difference between a first average output voltage corresponding to the first output node and a second average output, voltage corresponding to the second output node; and a calibration counter configured to increment or decrement an offset count based on the difference, wherein the plurality of programmable tail current sources are adjusted based on a value of the offset count.

Abstract: A receiver for a serial data link, including an analog front end (AFE) including a continuous-time linear equalizer (CTLE) configured to receive an input signal from a transmitter, the CTLE including a first output node; a second output node; a plurality of programmable tail current sources configured to adjust a direct current (DC) offset between the first output node and the second output node; and a calibration circuit including: a slicer configured to output a difference between a first average output voltage corresponding to the first output node and a second average output, voltage corresponding to the second output node; and a calibration counter configured to increment or decrement an offset count based on the difference, wherein the plurality of programmable tail current sources are adjusted based on a value of the offset count.

Abstract: An analog front end (AFE) circuit including: a continuous time linear equalizer (CTLE) circuit; a transimpedance amplifier (TIA) connected to the CTLE circuit; and a feedback circuit including: a first transistor connected between a first output of the feedback circuit and a first node connected to a first current source; a second transistor connected between a second output of the feedback circuit and a second node connected to a second current source; and a first tunable resistor coupled between the first node and the second node, wherein: a first input of the feedback circuit is connected to a first output of the TIA; a second input of the feedback circuit is connected to a second output of the TIA; the second output of the feedback circuit is connected to a first input of the TIA.

Abstract: A circuital system that includes a differential low-pass filter having a differential output and operable in a first voltage domain. Some embodiments include a differential integrator including a differential input and a differential output, and operable in a second voltage domain different from the first voltage domain. Some embodiments include a pair of AC coupling capacitors coupling the differential output of the differential low-pass filter to the differential input of the differential integrator.

Abstract: A device includes a first compensation circuit configured to adjust an analog front end (AFE) output to generate a first adjusted AFE output, a first data slicer configured to output a first voltage based on the first adjusted AFE output. The first compensation circuit includes a first path between a voltage source and a ground, including a first transistor, a first adjustable current source, a first input voltage node configured to receive the AFE output, and a first output voltage node coupled to the first data slicer, a second path between the voltage source and the ground, including a second transistor, a second adjustable current source, a second input voltage node configured to receive the AFE output, and a second output voltage node coupled to the second data slicer, and a configurable resistance resistor and a configurable capacitance capacitor coupled in parallel across the first path and the second path.

Abstract: A circuital system that includes a differential low-pass filter having a differential output and operable in a first voltage domain. Some embodiments include a differential integrator including a differential input and a differential output, and operable in a second voltage domain different from the first voltage domain. Some embodiments include a pair of AC coupling capacitors coupling the differential output of the differential low-pass filter to the differential input of the differential integrator.

Abstract: Disclosed are self-powering biofuel cell and sensor devices, systems and techniques. In some aspects, a self-powered biosensing system includes an electronic circuit; an anode including an enzymatic layer electrically coupled to a power supply voltage terminal of the electronic circuit and configured to interact with an analyte in a fluid, such as glucose or lactate; and a cathode electrically coupled to a ground voltage terminal of the electronic circuit, where the electronic circuit is operable to control and use the electrical energy generated at the anode and cathode for powering the biosensing system and detecting a concentration of the analyte in the fluid.

Abstract: A circuital system that includes a differential low-pass filter having a differential output and operable in a first voltage domain. Some embodiments include a differential integrator including a differential input and a differential output, and operable in a second voltage domain different from the first voltage domain. Some embodiments include a pair of AC coupling capacitors coupling the differential output of the differential low-pass filter to the differential input of the differential integrator.

Abstract: Disclosed are self-powering biofuel cell and sensor devices, systems and techniques. In some aspects, a self-powered biosensing system includes an electronic circuit; an anode including an enzymatic layer electrically coupled to a power supply voltage terminal of the electronic circuit and configured to interact with an analyte in a fluid, such as glucose or lactate; and a cathode electrically coupled to a ground voltage terminal of the electronic circuit, where the electronic circuit is operable to control and use the electrical energy generated at the anode and cathode for powering the biosensing system and detecting a concentration of the analyte in the fluid.

Abstract: A system for universal testing of metal sheet formability is described. The system discloses a cylinder barrel including two pistons for testing formability of the metal sheets. The driving force is provided by the hydraulic pressure of an incompressible fluid. The present application also describes an apparatus to perform various formability tests on metal sheets such as the bulge test, Nakazima test, Marciniak test, cupping test, and the blanking test. The system can also be used in hydroforming metal sheets.

Abstract: An improved electro-hydraulic clinching system involves generating, through a high potential electric shock, a forceful wave in a fluid such as water, and applying the force of the wave to a sheet of metal. The force of the wave results in deforming the sheet and making the sheet material move through a hole in a second sheet adjacent to the first sheet, thus joining the two sheets. In an alternative implementation, in which neither sheet includes an opening, the force of the wave moves both sheets simultaneously, thereby causing them to join together at the point of impact.

Abstract: An improved electro-hydraulic clinching system involves generating, through a high potential electric shock, a forceful wave in a fluid such as water, and applying the force of the wave to a sheet of metal. The force of the wave results in deforming the sheet and making the sheet material move through a hole in a second sheet adjacent to the first sheet, thus joining the two sheets. In an alternative implementation, in which neither sheet includes an opening, the force of the wave moves both sheets simultaneously, thereby causing them to join together at the point of impact.

Abstract: A hot forming by gas and direct quenching method and apparatus are disclosed. One method of using the system includes a heating step, a forming step, and a direct quenching step. This method increases the quenching speed and allows common steels with high critical cooling rate to be hot formed and quenched. This method reduces or eliminates the need for a furnace and/or the coating of the workpiece prior to the forming, as well as the removal of the coating after the forming. Furthermore, by using a hot gas containing carbon or nitrogen, the workpiece may be case hardened after the heating, forming and quenching steps.

Abstract: A system for universal testing of metal sheet formability is described. The system discloses a cylinder barrel including two pistons for testing formability of the metal sheets. The driving force is provided by the hydraulic pressure of an incompressible fluid. The present application also describes an apparatus to perform various formability tests on metal sheets such as the bulge test, Nakazima test, Marciniak test, cupping test, and the blanking test. The system can also be used in hydroforming metal sheets.

Abstract: An improved system and method of producing fiber-reinforced polymer composites is disclosed. In one implementation, the improved process involves placing pieces of metal components between layers of fiber during the layering and impregnating process. The impregnated layers are then placed into a die/mold to form a fiber-reinforced polymer composite part. Because of the use of metal components, the fiber-reinforced polymer composite can be removed from the die/mold while only semi-cured. Thus, the solution provided by the preferred embodiment of the present invention increases the speed of production thereby increasing production efficiency, reducing the cost, and resulting in a higher quality final product.

Abstract: A high-speed hot forming and direct quenching method and apparatus are disclosed. A first step of the method can comprise various pre-processing steps that can prepare a workpiece for the apparatus. A second step involves a heat-treatment of the workpiece. A third step comprises hot forming the workpiece and primary quenching of the workpiece. A fourth step can comprise a secondary quenching of the workpiece.

Abstract: A system and method for hydraulic forming of sheets is provided. A coil is connected to a pulse generator storing electric energy and discharging the electric energy to the coil, creating a first electromagnetic field in the coil. A conductive plate placed on the coil such that the first electromagnetic field causes creating of a second electromagnetic field in the conductive plate, in a direction opposite to the first electromagnetic field, creating a force. A pressure chamber filled with a fluid and placed on the conductive plate. A piston placed inside the pressure chamber to transfer the force to the fluid. A sheet placed on the pressure chamber, the fluid being configured to receive the force from the piston and transfer the force to the sheet. A die placed on the sheet, wherein the force transferred to the sheet from the fluid causes the sheet to take a shape of the die.

Abstract: A system and method for hydraulic forming of sheets is provided. A coil is connected to a pulse generator storing electric energy and discharging the electric energy to the coil, creating a first electromagnetic field in the coil. A conductive plate placed on the coil such that the first electromagnetic field causes creating of a second electromagnetic field in the conductive plate, in a direction opposite to the first electromagnetic field, creating a force. A pressure chamber filled with a fluid and placed on the conductive plate. A piston placed inside the pressure chamber to transfer the force to the fluid. A sheet placed on the pressure chamber, the fluid being configured to receive the force from the piston and transfer the force to the sheet. A die placed on the sheet, wherein the force transferred to the sheet from the fluid causes the sheet to take a shape of the die.