Abstract: A printed circuit board includes a baseboard, first and second conductive wires, a fuse, a 5V connector, a USB connector, and a CPU. The 5V connector is electrically connected to a first end of the fuse through the first conductive wire, and electrically connected to a voltage pin of the CPU voltage regulating chip through the second conductive wire. A voltage pin of the USB connector is connected to a second end of the fuse. The 5V connector outputs a 5V system voltage to the USB connector through the first conductive wire and the fuse, thus providing a voltage to a USB device, and also outputs the 5V system voltage to the CPU voltage regulating chip through the second conductive wire, thus signaling the CPU voltage regulating chip to convert the 5V system voltage and provide the converted voltage to a CPU.

Abstract: A printer circuit board (PCB) includes a voltage regulator module (VRM) and a body. The VRM supplies power to a first load and a second load. A decoupling circuit is set on one side of the first load, and the decoupling circuit is electronically connected to the first load. The body includes a multi-layer circuit board. The VRM, the first load, and the second load are positioned on one layer of the circuit board, where the VRM is electronically connected to the first load, but the VRM and the first load are electronically disconnected with the second load. The VRM, the first load, and the second load two are positioned on two other layers of the circuit board, where the first load is electronically connected to the second load, but the first load and the second load are electronically disconnected to the VRM.

Abstract: A computing device and a method reads a circuit board layout file from a storage device, and selects a first signal transmission line from circuit board layout file as a target line. The computing device and method computes a distance between the target line and the aggressor line corresponding to each unit sample length. If the distance is more than or equal to a height of a sample region, the computing device and method defines the height of the sample region as a crosstalk space between the target line and the aggressor line corresponding to a unit sample length. Otherwise, if the distance is less than the height of the sample region, the computing device and method defines the distance as the crosstalk space between the target line and the aggressor line corresponding to the unit sample length.

Abstract: In a method for verifying a printed circuit board (PCB) layout using a computing device, a PCB simulation file is obtained from a storage device of the computing device, and a PCB image is displayed on a display device according to the PCB simulation file. The PCB image includes multiple signal lines and switching voltage regulator nodes (SVRN). A SVRN to be checked is selected from the PCB image, and all signal lines around the SVRN are searched. The method calculates a layout distance between the selected SVRN and each of the searched signal lines, and generates a graphical window interface to position a signal line whose layout distance is equal to or less than the minimum distance. The method further modifies the layout of the positioned signal line to satisfy a layout design specification by increasing the layout distance to the minimum distance.

Abstract: A circuit topology for multiple loads includes a driving terminal, first and second signal receiving terminals, and a capacitor. The driving terminal is connected to a node through a first transmission line. The node is connected to the first and second signal receiving terminals through second and third transmission lines. The second transmission line is longer than the third transmission line, and a difference between lengths of the second and third transmission lines is greater than a product of a transmission speed and a rise time of signals from the driving terminal. A first terminal of the capacitor is connected to the third transmission line. A second terminal of the capacitor is grounded. A distance between the capacitor and the second signal receiving terminal is less than a distance between the capacitor and the node.

Abstract: A computing device and a method selects a signal transmission line from a circuit board, computes an actual length of each line segment of the selected signal transmission line, and computes an actual distance between each line segment of the selected signal transmission line and a corresponding line segment of each neighboring signal transmission line. If each actual length is less than or equal to a corresponding reference length and each actual distance is more than or equal to a corresponding reference distance, the device and method determines a design of the selected signal transmission line satisfies the design standards. Otherwise, if any actual length is more than a corresponding reference length, or if any actual distance is less than a corresponding reference distance, the device and method determines the design of the signal transmission line does not satisfy the design standards.

Abstract: A computing device and a method involves selection of one or more transmission lines from a printed circuit board (PCB) layout file, reading a transmission line from the one or more selected transmission lines, and determining neighboring anti-pads of the read transmission line in the PCB layout file. The computing device and method further determine an actual distance between the read transmission line and a neighboring anti-pad. If the actual distance is less than a preset standard distance, the computing device and method determine that the read transmission line and the neighboring anti-pad do not satisfy design requirements, and highlight the read transmission line and the neighboring anti-pad, to prompt a user to amend design of the read transmission line and the neighboring anti-pad.

Abstract: A printed circuit board includes first and second layers, a control chip, bonding pads, and several electronic elements. The bonding pads can be selectively applied to interconnect the first and second layers, and the control chip with any of the electronic elements in a simple layout.

Abstract: In a method for verifying a printed circuit board (PCB) layout using a computing device, a PCB simulation file is obtained from a storage device of the computing device, and a PCB image is displayed on a display device according to the PCB simulation file. The PCB image includes multiple signal lines and switching voltage regulator nodes (SVRN). A SVRN to be checked is selected from the PCB image, and all signal lines around the SVRN are searched. The method calculates a layout distance between the selected SVRN and each of the searched signal lines, and generates a graphical window interface to position a signal line whose layout distance is equal to or less than the minimum distance. The method further modifies the layout of the positioned signal line to satisfy a layout design specification by increasing the layout distance to the minimum distance.

Abstract: An electronic device and a method for checking layout distance of a printed circuit board (PCB) including presetting a checking condition to determine a reference layer. A high speed signal path is selected from a PCB design file, and a layer where the selected high speed signal path is located can be determined A reference layer of the determined layer is determined according to the checking condition, and a split line of the reference layer is determined. A shortest distance between each segment of the selected high speed signal path and the split line is calculated. If the shortest distance between a segment and the split line is less than the standard distance, layout of the segment is determined to be invalid.

Abstract: A computing device and a method selects a signal transmission line from a circuit board, computes an actual length of each line segment of the selected signal transmission line, and computes an actual distance between each line segment of the selected signal transmission line and a corresponding line segment of each neighboring signal transmission line. If each actual length is less than or equal to a corresponding reference length and each actual distance is more than or equal to a corresponding reference distance, the device and method determines a design of the selected signal transmission line satisfies the design standards. Otherwise, if any actual length is more than a corresponding reference length, or if any actual distance is less than a corresponding reference distance, the device and method determines the design of the signal transmission line does not satisfy the design standards.

Abstract: A printed circuit board includes first and second layers, a control chip, bonding pads, and several electronic elements. The bonding pads can be selectively applied to interconnect the first and second layers, and the control chip with any of the electronic elements in a simple layout.

Abstract: A computing device and a method reads a circuit board layout file from a storage device, and selects a first signal transmission line from circuit board layout file as a target line. The computing device and method computes a distance between the target line and the aggressor line corresponding to each unit sample length. If the distance is more than or equal to a height of a sample region, the computing device and method defines the height of the sample region as a crosstalk space between the target line and the aggressor line corresponding to a unit sample length. Otherwise, if the distance is less than the height of the sample region, the computing device and method defines the distance as the crosstalk space between the target line and the aggressor line corresponding to the unit sample length.

Abstract: A computing device and a method involves selection of one or more transmission lines from a printed circuit board (PCB) layout file, reading a transmission line from the one or more selected transmission lines, and determining neighboring anti-pads of the read transmission line in the PCB layout file. The computing device and method further determine an actual distance between the read transmission line and a neighboring anti-pad. If the actual distance is less than a preset standard distance, the computing device and method determine that the read transmission line and the neighboring anti-pad do not satisfy design requirements, and highlight the read transmission line and the neighboring anti-pad, to prompt a user to amend design of the read transmission line and the neighboring anti-pad.