Wedin
Alex Wedin, Tucson, AZ US
Patent application number | Description | Published |
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20090184854 | PRECISION MICROCONTROLLER-BASED PULSE WIDTH MODULATION DIGITAL-TO-ANALOG CONVERSION CIRCUIT AND METHOD - A precision digital to analog conversion circuit and method are provided. A regulated direct current (DC) voltage having a DC voltage magnitude is supplied to a device, such as a processor. The processor generates a pulse width modulation (PWM) output signal based, at least in part, on the regulated DC voltage. An analog output signal is generated from the PWM output signal. The regulated DC voltage is compared to a precision reference DC voltage, the DC voltage magnitude is selectively adjusted based on the comparison. | 07-23-2009 |
20110102055 | LOW-SIDE DRIVER HIGH-VOLTAGE TRANSIENT PROTECTION CIRCUIT - A low-side driver circuit includes a low-side driver integrated circuit and a controllable switch. The low-side driver integrated circuit is responsive to an on-off command input signal to selectively operate in an ON mode and an OFF mode. The controllable switch is responsive to the on-off command signal to selectively operate in a CLOSED mode and an OPEN mode. The low-side driver integrated circuit and the controllable switch are configured to simultaneously operate in the ON mode and the CLOSED mode, respectively, and in the OFF mode and the OPEN mode, respectively. During a voltage transient the potential will be realized across the controllable switch, thus protecting the lower voltage rated low-side integrated circuit. | 05-05-2011 |
20130063851 | APPARTUS AND METHOD FOR PROTECTING SIGNAL AND COMMUNICATION LINES FROM VERY HIGH VOLTAGE AND TRANSIENT PULSES - Apparatus for protecting a signal line bus driver from overvoltage faults may include a first solid-state switch configured to block current having a positive voltage when open and a second solid-state switch configured to block current having a negative voltage when open. A comparator circuit may produce a output signal responsively to presence of a fault-induced voltage in the signal line that has a magnitude that exceeds the reference voltage. The first and second switches may be connected in series with one another and with the bus driver. The switches may be interposed between the bus driver and an output end of the signal line and may responsively to the comparator circuit output signal. | 03-14-2013 |
20130229055 | SWITCHED TRANSIENT VOLTAGE SUPPRESSION CIRCUIT - A transient voltage suppression circuit includes a voltage suppression circuit, a switch activation circuit, and a solid-state switch. The switch activation circuit is configured to selectively supply a switch activation signal. The solid-state switch is electrically connected in series with the voltage suppression circuit, is coupled to receive the switch activation signal selectively supplied by the switch activation circuit, and is configured, in response to the switch activation signal, to switch from an OFF state to an ON state. | 09-05-2013 |
Bryan Scott Wedin, Green Bay, WI US
Patent application number | Description | Published |
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20140205790 | LOAD TRANSFER OR CONNECTOR DEVICE FOR EXPANDED CELL CONFINEMENT STRUCTURES AND METHODS FOR DOING THE SAME - A device that includes an insertion member, a shank, and a body having a through-hole and a post. The device can be part of a cellular confinement system. A method of transferring load from an expanded cellular confinement structure to a flexible tendon includes inserting an insertion member of a device through an open slot in the structure, inserting a tendon through a through-hole in the body of the device, and wrapping the tendon around a post of the body. A kit includes a first unitary section of cells, at least one device, and at least one tendon for securing the device and the section to allow transfer of load from the web to the tendon. | 07-24-2014 |
20140270945 | MAT, PORTABLE POROUS CONSTRUCTION MAT SYSTEM, TOOLS, AND METHODS - A mat for use in a portable porous construction mat system includes tabs for providing connections to adjacent mats. A portable porous construction mat system includes a plurality of porous units connected together with fastener arrangements. A method of providing a construction mat system includes connecting together porous units with fastener arrangements. A kit includes at least first and second porous units and fastener arrangements. | 09-18-2014 |
Erik Wedin, Ludvika SE
Patent application number | Description | Published |
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20140076625 | High Voltage Arrangement Comprising An Insulating Structure - A high voltage arrangement for a high voltage power system has an insulating structure which reduces the creep path. The insulating structure is arranged around the second conductor and has a continuous extension in an axial direction from a first end thereof providing insulation of essentially the entire length of the second conductor to a second end around the bushing portion, which second end extends around the bushing portion at least to a point where an electric potential of an external surface of the bushing portion is at most equal to the average of the potential of the first conductor and the potential of the interfacing plane when the high voltage arrangement is in use. | 03-20-2014 |
20140327506 | OIL TRANSFORMER - An oil transformer includes a transformer vessel, a transformer core mounted in the vessel, at least one upright hollow cylindrical transformer coil including at least one axial cooling channel arranged around a limb of the transformer core, and an oil chamber arranged at an axial front side of the transformer coil. At least one first opening leading from the inner chamber to the belonging front side of the transformer coil is provided, and at least one second opening is provided within the surrounding boundaries of the oil chamber. The oil chamber is an under-pressure chamber, wherein the at least one first opening is an inlet port and the at least one second opening is an outlet port. | 11-06-2014 |
Tobias Wedin, Stockholm SE
Patent application number | Description | Published |
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20120321793 | METHOD FOR PRINTING PRODUCT FEATURES ON A SUBSTRATE SHEET - The present invention provides a method of producing a product comprising an array of product features ( | 12-20-2012 |