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144results about How to "Lowering technique" patented technology

Method and circuit for trimming a current source in a package

A method and circuit for trimming a current source packaged with a device can facilitate trimming of the current source without the need for additional pins or dual function pins, resulting in improved accuracy and / or simplified trimming techniques. An exemplary packaged device is configured with a trimming circuit comprising a current trimming network and a coupling circuit. An exemplary packaged device can comprise any op amp, current or voltage reference, and / or sensor device, and is configured with one or more monitor inputs. An exemplary current trimming network comprises a variable current source and a reference current source, wherein a magnitude of the variable current source can be compared to the magnitude of the reference current source. An exemplary coupling circuit is coupled between the current trimming network and the device and is configured for enabling and disabling connection of an output of the current trimming network and a monitor input of the device. During an exemplary trimming method, the variable current source is configured with a magnitude adjusted to a desired proportion of a magnitude of the reference current source, with the current trimming network configured to produce a current proportional to the difference, sum, or product of the first and second current sources.
Owner:TEXAS INSTR INC

Power receiving control device, power receiving device, and electronic apparatus

A power receiving control device provided to a power receiving device included in a contactless power transmission system that transmits electric power from a power transmission device to the power receiving device by electromagnetically coupling a primary coil and a secondary coil so as to feed the electric power to a load serving as a power feeding object from a voltage output node of the power receiving device, which includes a rectifying circuit and a regulator; and transmits a load modulation signal to the power transmission device by load modulation performed by a load modulation section included in the power receiving device, in a period of the power feeding to the load as the power feeding object, includes a power receiving side control circuit controlling an operation of the power receiving device; and a power supply control signal output terminal for outputting a power supply control signal by which the power feeding to the load is temporarily stopped In the device, the power receiving side control circuit turns on a switch circuit provided between an input node and an output node of the regulator, based on detection of lowering of power feeding capability to the load, so as to put a bypass path, which directly connecting the input node and the output node of the regulator, in an ON state; turns off the switch circuit so as to forcibly put the bypass path in an OFF state, in a case where the power feeding to the load is temporarily stopped in a period during which the bypass path is formed, at one of timing at which a voltage level of the power supply control signal outputted from the power supply control signal output terminal is switched from a non-active level to an active level so as to temporarily stop the power feeding to the load and timing before the power feeding to the load is temporarily stopped; and turns on the switch circuit after releasing the temporary stop of the power feeding to the load so as to return the bypass path to the ON state.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and special rack capable of adjusting position of suspended beam screw rod to guide rail

The invention provides a method capable of adjusting the position of a suspended beam screw rod to a guide rail. The method includes the steps of aligning a special rack on the guide rail screw rod with the known accuracy, reading data on a data acquisition unit and zero clearing, arranging the adjustment rack on the parallel guide rail to be detected, clamping screw rod nut through a clamping device, contacting the screw rod nut with a pressure sensor, and displaying a pressure value of a contact point of a clamping device mechanical arm and the screw rod in real time by being connected with the data acquisition unit. The special rack is capable of slowly moving on the guide rail through rotation of the screw rod to achieve automatic detection. A dial indicator which is arranged on the special rack is capable of being used for detecting, when the screw rod is arranged or positional accuracy of the screw rod is periodically detected. The method capable of adjusting the position of the suspended beam screw rod to the guide rail has the advantages of being simple in structure, reasonable in design, high in installation accuracy, capable of automatically detecting, integral in installation and detection, easy to operate and convenient to handle. The invention further provides the special rack capable of adjusting the position of the suspended beam screw rod to the guide rail.
Owner:SUZHOU LEAD LASER TECH +2

Airbag type inner framework form traveler and primary tunnel supporting shotcrete construction method

The invention discloses an airbag type inner framework from traveler and a primary tunnel supporting shotcrete construction method. The form traveler comprises a movable supporting framed bent, an inflatable formwork located on the outer side of the movable supporting framed bent, and a retractable supporting device for supporting the inflatable formwork, and the retractable supporting device is installed on the movable supporting framed bent and located on the inner side of the inflatable formwork. The construction method includes the steps: firstly, forwarding the airbag type inner framework from traveler in place; secondly, performing primary tunnel supporting shotcrete construction; thirdly, performing primary tunnel supporting shotcrete construction on a next tunnel section; fourthly, repeating the third step for multiple times till the primary tunnel supporting shotcrete construction process of all the tunnel sections is finished. The airbag type inner framework from traveler is reasonable in design, simple to construct and good in using effect, resilience rate of primary tunnel supporting shotcrete is effectively controlled through an airbag type inner framework, construction efficiency is high, construction period is short, construction quality is high, and zero resilience rate of primary tunnel supporting shotcrete can be realized.
Owner:CHINA RAILWAY FIRST GRP CO LTD +1
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