Abstract: A method processes measurement data of an object using a computing device. The method obtains measurement data of preselected feature elements of a measured object, inserts the measurement data of the preselected feature elements into a data list, obtains measured results of the preselected feature elements from a measurement tool, and calculates tolerance values of the preselected feature elements according to the measured results. The method further searches pixel icons of the preselected feature elements according to tolerance values and the measured results, inserts the pixel icons and the measured results into the data list, receives selections of a user and displays the data list in different list modes.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A method for locating marked numbers in a two dimensional (2D) image of an object, a rectangular frame enclosing the 2D image is determined. The method divides a boundary of the rectangular frame into a plurality of segments, assigns an index number to each segment along a horizontal direction and a vertical direction of the rectangular frame. The method further obtains a marked number selected from a preset file, and locates a cursor on a first position of the marked number in the 2D image according to coordinates of the marked number, or locates the cursor on a second position of the marked number according to a horizontal index number and a vertical index number of the marked number.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A method outputs measurement data automatically using an electronic device. The method obtains measurement data of feature elements from a two dimensional (2D) image of a measured object, determines a type of measurement applied to each feature element, obtains feature elements from planes of a three dimensional (3D) image of the measured object, and maps each of the obtained feature elements in the 3D image to the 2D image. The method further obtains sequential marked numbers from the 2D image, determines a feature element which is nearest to any marked number from the mapped feature elements, determines an output axis for each of the determined feature elements, and outputs measured results and measurement codes of the determined feature elements by reference to the measurement data, the type of measurement and the output axis of each determined feature element.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A method for creating measurement codes automatically using an electronic device. One or more feature elements are selected in a three dimensional (3D) image of an object. The method determines measured types of the feature elements and output axes of each feature element according to an attribute type and a measurement type of each feature element. The method further draws the feature elements in a two dimensional (2D) image of the object, sets a relation graph beside each feature element, assign a graph number to each relation graph, receives a graph number of a relation graph, determines a marked number corresponding to the graph number, obtains a reference value, an upper tolerance, and a lower tolerance of each feature element, and creates measurement codes of each feature element according to the obtained information.

Abstract: A method for locating marked numbers in a two dimensional (2D) image of an object, a rectangular frame enclosing the 2D image is determined. The method divides a boundary of the rectangular frame into a plurality of segments, assigns an index number to each segment along a horizontal direction and a vertical direction of the rectangular frame. The method further obtains a marked number selected from a preset file, and locates a cursor on a first position of the marked number in the 2D image according to coordinates of the marked number, or locates the cursor on a second position of the marked number according to a horizontal index number and a vertical index number of the marked number.

Abstract: A method processes measurement data of an object using a computing device. The method obtains measurement data of preselected feature elements of a measured object, inserts the measurement data of the preselected feature elements into a data list, obtains measured results of the preselected feature elements from a measurement tool, and calculates tolerance values of the preselected feature elements according to the measured results. The method further searches pixel icons of the preselected feature elements according to tolerance values and the measured results, inserts the pixel icons and the measured results into the data list, receives selections of a user and displays the data list in different list modes.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.

Abstract: A method outputs measurement data automatically using an electronic device. The method obtains measurement data of feature elements from a two dimensional (2D) image of a measured object, determines a type of measurement applied to each feature element, obtains feature elements from planes of a three dimensional (3D) image of the measured object, and maps each of the obtained feature elements in the 3D image to the 2D image. The method further obtains sequential marked numbers from the 2D image, determines a feature element which is nearest to any marked number from the mapped feature elements, determines an output axis for each of the determined feature elements, and outputs measured results and measurement codes of the determined feature elements by reference to the measurement data, the type of measurement and the output axis of each determined feature element.

Abstract: A method outputs measurement data graphically using an electronic device. The method obtains measurement data of a preselected feature element from an image of a measured object, and further obtains a reference feature element corresponding to the preselected feature element from an image of a reference object. The method further retrieves points of the preselected feature element, connects the retrieved points to obtain a fitted feature element, sets the fitted feature element with different colors, and outputs the fitted feature element with the image of the reference object on a display device of the electronic device.

Abstract: A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.