Patent application number | Description | Published |
20120147554 | MOTHERBOARD SYSTEM HAVING HEAT DISSIPATING DEVICE - A motherboard system includes a PCB, a CPU socket mounted on the PCB, a heat dissipating device, and a number of fastening devices. The CPU socket is configured for receiving a CPU. The heat dissipating device is mounted on the CPU socket for dissipating heat generated by the CPU. The fastening devices extend through the heat dissipating device and the CPU socket and are engaged in the PCB, thereby fastening the heat dissipating device, and the CPU socket to the PCB. | 06-14-2012 |
20130170128 | MOTHERBOARD - A motherboard includes a processor socket, a platform controller hub (PCH), a power circuit, a switch unit, and a memory slot. The PCH is connected to the memory slot and output a bus signal to a serial advanced technology attachment dual in-line memory module (SATA DIMM) when a SATA DIMM is inserted in the memory slot and when the switch unit is in a first state. When a memory module is in the memory slot the power circuit outputs a voltage to the memory module in response to a second state of the switch unit. | 07-04-2013 |
20130346765 | SYSTEM FOR SUPPLYING OPERATING VOLTAGE TO CENTRAL PROCESSING UNIT - A central processing unit (CPU) power controller includes a power supply unit, a CPU power controller, a detecting circuit, a temperature compensation circuit, an inductor, a thermistor, first and second switches, and first and second capacitors. The detecting circuit outputs a detected voltage of an inductor to the CPU power controller. The temperature compensation circuit outputs a detected voltage of the thermistor to the CPU power controller, to compensate for changes in the voltage of the inductor. If the detected voltage is greater than the rated voltage, the first switch is opened and the second switch is closed. The inductor discharges. If the detected voltage of the inductor is less than the rated voltage, the first switch is closed and the second switch is opened, the power supply unit charges the inductor to increase the voltage of the CPU. | 12-26-2013 |
20140019781 | SYSTEM FOR PROTECTING POWER SUPPLY CIRCUIT OF CENTRAL PROCESSING UNIT - A system includes a power supply unit, a central processing unit (CPU) power controller, a detecting circuit, an inductor, a thermal resistor, first and second field effect transistors (FETs), and first to third capacitors. The CPU power controller detects a voltage of the thermal resistor and compares the detected voltage with first and second preset values. If the detected voltage is greater than the first preset value and less than the second preset value, the CPU power controller outputs a first control signal to a base management controller (BMC) chip for signaling the BMC chip to control the fan to increase a speed. If the detected voltage is greater than the second preset value, the CPU controller outputs a second control signal to the CPU for signaling the CPU to regulate a working frequency or reduce a number of loads. | 01-16-2014 |
Patent application number | Description | Published |
20130088832 | THERMAL PROTECTION CIRCUIT AND ELECTRONIC DEVICE - A thermal protection circuit includes a temperature detecting circuit, a comparing circuit, and a switching circuit. The temperature detecting circuit senses an internal temperature of the electronic device and outputs a voltage signal decreasing proportionally with the internal temperature of the electronic device increasing. The comparing circuit compares the voltage signal to a high voltage threshold or a low voltage threshold, thereby outputting a corresponding driving signal. The switching circuit turns on/off under the control of the driving signal. | 04-11-2013 |
20130238275 | THERMAL PROTECTION CRITICAL TEMPERATURE SETTING DEVICE, SYSTEM AND METHOD - A device for setting a thermal protection critical temperature of a switching power supply, the switching power supply including a plurality of power supply elements and a temperature-sensing element. A temperature measurement element of the device measures temperatures of the power supply elements. Difference in temperature between the temperature of each of the power supply elements and a reduced rated temperature of each of the power supply elements is calculated, and a largest difference in temperature from the temperature of the temperature-sensing element is calculated. | 09-12-2013 |
20130242437 | BUCK CIRCUIT - A buck circuit includes a first inductor, a second inductor, a first capacitor, a second capacitor, a first resistor, a second resistor, a first electronic switch, a second electronic switch, a controller, a voltage input terminal, and a voltage output terminal. The relationship of the capacitance C of the first capacitor, the resistance R of the first resistor, the inductance L of the first inductor, and the equivalent impedance Z of the first inductor is R*C=L/Z. The controller detects voltage of the first capacitor, determines whether current of the first inductor is more than a preset value according to the voltage of the first capacitor, and executes over-current protection when the current of the first inductor is more than the preset value. | 09-19-2013 |
20130342237 | POWER SUPPLY TEST DEVICE - A power supply test device includes a function generator, a loading circuit, a current detection circuit, and a controller. The function generator outputs a square-wave signal to the loading circuit. The loading circuit is electronically connected to a power supply, the loading circuit regulates an output current of the power supply according to the square-wave signal. The current detection circuit cooperates with the controller in detecting a slope of the output current. The controller compares the detected slope with a preset value, and regulates the square-wave signal according to the comparison to regulate the slope of the output current. | 12-26-2013 |
20140009178 | IMPEDANCE MEASURING DEVICE - An impedance measuring device for an electronic component includes a constant voltage source, a load supplying circuit, a voltage detection circuit, and a controller. The constant voltage source outputs an input voltage. The load supplying circuit supplies a load resistor that is electronically connected in series with the electronic component between the constant voltage source and ground. The voltage detection circuit detects a voltage across the load resistor. The controller receives the voltage across the load resistor from the voltage detection circuit, and calculates an equivalent impedance of the electronic component according to the input voltage, the voltage across the load resistor, and the resistance of the load resistor. | 01-09-2014 |