Asustek Computer Inc.

Tao Hung Chen

Wei-Chen Tu

Kai-Chun Liang

Kian-Ming Chee

Ching-Ji Liang

Xiao-Feng Zhou

A power control circuit is disclosed. The power control circuit includes a first receiving circuit, a second receiving circuit, a first power supply circuit and a second power supply circuit. The first receiving circuit is electrically connected to a charging circuit and a first port and configured to charge a power unit according to a first port voltage. The second receiving circuit is electrically connected to the charging circuit and a second port and configured to charge the power unit according to a second port voltage. The second receiving circuit is further configured to be disabled according to the first port voltage. The first power supply circuit is configured to supply power to the first port. The second power supply circuit is configured to supply power to the second port. Thus, the power control circuit transmits power or data through different ports.

Power control circuit

A detection circuit is provided, including a connector and a processing circuit. The connector comprises a first detection terminal and a second detection terminal. The second detection terminal is electrically connected to a first reference potential. The processing circuit is electrically connected to the first detection terminal and is used for receiving a power supply signal. When the connector is connected to a connecting port, the first detection terminal is electrically connected with the second detection terminal through the connecting port to form an electrical loop, so that the processing circuit detects a detection potential on the first detection terminal, and then determines whether the connector is correctly connected to the connecting port.

Detection circuit applied to a connecting port

A voltage conversion apparatus includes a power supply circuit with a first switch, a voltage conversion circuit, and a protective circuit with a detection circuit. The first switch transmits a power to generate an input voltage. The voltage conversion circuit generates a first voltage. A second switch of the voltage conversion circuit receives the input voltage. A third switch of the voltage conversion circuit is coupled between the second switch and a ground terminal. The detection circuit generates a first control signal based on the first voltage, a second voltage that corresponds to the first voltage, and a reference voltage. When a voltage value of an error signal is less than the reference voltage, the detection circuit outputs the first control signal to turn off the first switch. The voltage value of the error signal corresponds to a voltage difference between the first voltage and the second voltage.

Voltage conversion apparatus and control method therefor

A method of diagnosing a circuit layout and a computer system for performing the method. First, a layout arranging rule is defined in a second file, and a circuit layout is defined in a first file. A diagnosing program compares the first file and the second file and checks whether the circuit layout violates the layout arranging rule. In addition, the diagnosing program searches the first file to determine if any groups of power test pads have a total number of power test pads which is less than a safety value, to indicate if any additional power test pads are required for any particular group. The diagnosing program also determines which test pads have an interval less than a safety distance, to indicate if any intervals of the test pads should be amended. The computer system can rapidly and exactly determine any problems in the arrangement of the test pads in the circuit layout, so as to save manpower and time.

Growing community of inventors

Taipei County, Taiwan

Tao Hung Chen