| Patent application number | Description | Published |
|---|
| 20100211811 | CIRCUIT FOR CONTROLLING TIME SEQUENCE - A circuit for controlling time sequence of a motherboard to supply power for a motherboard component includes a control circuit, a switch circuit, and a power conversion circuit. The control circuit is configured for receiving a startup signal during turning on the motherboard. The startup signal is configured to turn off the control circuit to delay a first voltage signal received by the first power receiving terminal for a period of time before outputting a new voltage signal. The switch circuit is configured for being turned off under the control of the new voltage signal. The power conversion circuit is configured for converting a second voltage signal into a supply voltage in response to the switch circuit being turned off, to provide the supply voltage to the motherboard component. | 08-19-2010 |
| 20100275041 | COMPUTER POWER SUPPLY AND POWER STATUS SIGNAL GENERATING CIRCUIT THEREOF - A computer power supply includes a system voltage output terminal, a standby voltage output terminal, and a power status signal generating circuit comprising an amplifier and an electrical switch. A terminal of a first resistor is connected to the system voltage output terminal. The other terminal of the first resistor is grounded via a capacitor and connected to a non-inventing terminal of the amplifier. A terminal of a second resistor is connected to the standby voltage output terminal. The other terminal of the second resistor is grounded via the third resistor and connected to an inverting terminal of the amplifier. An output terminal of the amplifier outputs a power status signal. A terminal of a fourth resistor is connected to the system voltage output terminal. The other terminal of the fourth resistor is connected to the output terminal of the amplifier and receives a start signal via the electrical switch. | 10-28-2010 |
| 20100277146 | COMPUTER POWER SUPPLY AND STANDBY VOLTAGE DISCHARGE CIRCUIT THEREOF - A computer power supply includes a standby voltage output terminal to output a standby voltage, a power connector connected to the standby voltage output terminal, and a standby voltage discharge circuit including a zener diode, first and second electrical switches. The standby voltage output terminal is connected to a cathode of the diode. An anode of the diode is connected to a first terminal of the first electrical switch. A second terminal of the first electrical switch is grounded. A third terminal of the first electrical switch is connected to a first terminal of the second electrical switch and the standby voltage output terminal via a first resistor. A second terminal of the second electrical switch is grounded. A third terminal of the second electrical switch is connected to the standby voltage output terminal via a second resistor. A capacitor is connected between the standby voltage output terminal and ground. | 11-04-2010 |
| 20110006783 | CARD FOR SIMULATING PERIPHERAL COMPONENT INTERCONNECT LOADS - A card for simulating peripheral component interconnect (PCI) loads of a computer motherboard uses a PCI interface to be inserted into a PCI slot of the computer motherboard to receive first to third voltage signals from the computer. First to third load modules of the card receive voltage signals from the computer via the PCI interface to simulating first to third power consumption of the computer. | 01-13-2011 |
| 20110063142 | KEYBOARD PROVIDING POWER CONTROL - A keyboard includes a plug communicating with an external input device, a printed circuit board (PCB), and a base. The PCB includes a first power pad and a second power pad electrically connected to the plug via a cable. The PCB outputs a control signal to the plug via the cable in response to the first power pad and the second power pad being electrically connected. The base includes a control and at least one positioning element for positioning the control on the base. The control includes a pushbutton, a first pin electrically connected to the first power pad, and a second pin electrically connected to the second power pad. The first pin and the second pin are electrically connected in response to the pushbutton being pressed. | 03-17-2011 |
| 20110068760 | POWER SUPPLY CIRCUIT - A power supply circuit arranged in a circuit board to supply a determined voltage to an element is disclosed. The power supply circuit includes two voltage receiving terminals to receive voltage signals, a window comparator, and an electrical switch. The comparator drives the electrical switch to be turned on, therefore a terminal of the electrical switch stably output the determined voltage to the element. | 03-24-2011 |
| 20110095743 | POWER SUPPLY CIRCUIT - A power supply circuit arranged in a circuit board to supply a determined voltage to an element is disclosed. The power supply circuit includes a single-phase pulse width modulation (PWM) signal controller, two transistors, two field-effect transistors (FETs), and two inductors. The PWM signal controller is triggered via the two transistors and respectively alternately outputs a high level voltage signal and a low level voltage signal to alternately control the two FETs to be turned on and turned off, to output the determined voltage. | 04-28-2011 |
| 20110107125 | COMPUTER SYSTEM - A computer system includes a monitor, and a motherboard. The monitor includes a display screen, a switch set on the monitor, and a first video connector. The first video connector includes a first monitor identity pin, and a first ground pin. The motherboard includes a second video connector. The second video connector includes a second monitor identity pin electrically connected to the first monitor identity pin, and a second ground pin electrically connected to the first ground pin. The second monitor identity pin and the second ground pin are correspondingly connected to a power signal line and a ground line of the motherboard. The switch is connected between the first monitor identity pin and the first ground pin, to control the motherboard to power on or power off. | 05-05-2011 |
| 20110115651 | KEYBOARD - A keyboard can power a computer on or off. A switch arranged on the keyboard receives power on or off operations. A control chip in the keyboard outputs control signals to a microcontroller according to the power on or off operations. The microcontroller actuates a switch circuit to make a control terminal of a motherboard of the computer power on and off the computer. | 05-19-2011 |
| 20110121657 | POWER SUPPLY CIRCUIT - A power supply circuit for a graphic card on a motherboard includes first to fourth electrical switches. The first electrical switch is connected to the motherboard to receive a power good signal from the motherboard. The second electrical switch is connected between the first electrical switch and each of the third and fourth electrical switches. The third and fourth electrical switches provide power to the graphic card. The first electrical switch is turned on or off according to the voltage of the power good signal. The second electrical switch is turned on or off by the first electrical switch, so as to selectively control one of the third and fourth electrical switches turn on to output power to the graphic card. | 05-26-2011 |
| 20110121696 | BRACKET AND CABINET USING THE SAME - A cabinet includes four pillars, a bracket mounted on the pillars, and an electronic device placed on the wheels. The bracket includes a mounting frame, shafts secured to the mounting frame and wheels on the shafts. When the electronic device is pushed or pulled, the wheels rotate on the shafts, thereby the electronic device easily moves relative to the bracket. | 05-26-2011 |
| 20110128700 | COMPUTER ENCLOSURE - A computer enclosure includes a casing defining a ventilation hole at one side thereof, a power supply and a cooling fan received in the casing. Heat generated by the power supply is taken out by an airflow generated by the cooling fan to an outside of the casing via the ventilation hole. At least one cover sheet covers the ventilation hole of the casing. One side of the cover sheet is pivotally connected to the casing so that the cover sheet is rotatable with respect to the casing. When the cooling fan works, an airflow produced by the cooling fan flows to the ventilation hole and pushes the cover sheet to rotate with respect to the casing, and thus the ventilation hole is exposed; when the cooling fan ceases to work, the cover sheet falls off due to a weight thereof and the cover sheet fully covers the ventilation hole. | 06-02-2011 |
| 20110128716 | DISPLAY DEVICE - A display includes a screen mounted in a frame, and a protective cover covering on the screen. The frame includes two first sidewalls respectively located on the left and right sides of the screen, and two second sidewalls respectively disposed at top and bottom sides of the screen. The protective cover includes a transparent base plate, two fixing plates formed respectively at left and right sides of the base plate, and an adjoining plate formed at a top side of the base plate. The two fixing plates are fixed on the two first sidewalls of the frame, respectively. The base plate is covered on the screen. The adjoining plate abuts on the second sidewall at the top side of the screen. | 06-02-2011 |
| 20110140584 | DESKTOP COMPUTER CABINET - A desktop computer cabinet includes a top slat, a bottom slat substantially parallel and opposite to the top slat, a front slat perpendicularly connected to the top slat and the bottom slat, a rear slat substantially parallel and opposite to the front slat, and perpendicularly connected to the top slat and the bottom slat, a pair of substantially parallel sidewalls, and a pair of handle fastened into a pair of receiving grooves correspondingly defined on the sidewalls. | 06-16-2011 |
