| Patent application number | Description | Published |
|---|
| 20100237552 | DEVICE FOR POSITIONING WORKPIECE - A positioning device with a positioning face, which comprises a combination of concaves provided on the positioning face. The boundaries of each of concaves intersect to boundaries of other concaves adjacent thereto. A positioning section is provided on the positioning face, and the periphery of the positioning section is defined by the interaction of boundaries of the combination of concaves. | 09-23-2010 |
| 20100264742 | POWER SOURCE SYSTEM WITH CONTINUOUSLY ADJUSTABLE OUTPUT - An exemplary power source system includes a power source, controller, and a voltage fine adjusting unit. The power source includes a number of cells and a number of switches configured for connecting the cells in series or in parallel. The controller is configured for coarsely controlling an output of the power source by selectively turning on and off the switches. The voltage fine adjusting unit is configured for further and finely adjusting the output of the power source on condition that the coarsely controlled output of the power source is outside a predetermined acceptable range of output. | 10-21-2010 |
| 20100277115 | SOLAR ENERGY STORING SYSTEM AND METHOD - A solar energy storing system includes a solar energy converting unit, a rechargeable battery unit, a charging unit, a switch unit, a detecting unit, and a controlling unit. The solar energy converting unit converts solar energy into electrical energy to generate a charging voltage. The rechargeable battery unit stores the electrical energy. The rechargeable battery unit includes a plurality of rechargeable batteries. The charging unit charges the rechargeable battery unit using the charging voltage. The switch unit changes electrical connections between the rechargeable batteries. The detecting unit detects the charging voltage and a voltage of each of the rechargeable batteries and determines a charging status between the charging voltage and the voltages of the rechargeable batteries. The controlling unit controls the switch unit to change the electrical connections between the rechargeable batteries according to the charging status between the charging voltage and the voltages of the rechargeable batteries. | 11-04-2010 |
| 20100320939 | LIGHT EMITTING DIODE ILLUMINATING SYSTEM AND CONTROLLING METHOD THEREOF - A light emitting diode (LED) illuminating system includes an LED lamp, a sensor, a memory, a controller, an AC/DC convertor, a DC/DC convertor and a current detector. The sensor detects a temperature around the LED illuminating system. The memory stores the detected temperature and a comparison table. The controller finds an optimized working voltage in the comparison table, according to the detected temperature. The AC/DC converter outputs a DC power with the optimized working voltage. The DC/DC converter converts the DC power into another DC power and supplies the another DC power to the LED lamp. The current detector detects a current variation of the another DC power. The controller stabilizes a current of the another DC power output by the DC/DC converter to the LED lamp, according to the current variation. | 12-23-2010 |
| 20110018352 | VARIABLE POWER SOURCE AND RELATED POWER SUPPLY METHOD - A power source includes a plurality of cells, a positive output, a negative output, a number of positive switches, a number of negative switches, and a number of serializing switches. Each of the cells includes a positive electrode and a negative electrode. Each of the positive switches is for connecting a corresponding positive electrode to the positive output. Each of the negative switches is for connecting a corresponding negative electrode to the negative output. Each of the serializing switches is for connecting a positive electrode of a corresponding cell to a negative electrode of an adjacent cell. | 01-27-2011 |
| 20110057219 | NITRIDE-BASED SEMICONDUCTOR LIGHT EMITTING DEVICE - An exemplary nitride-based semiconductor light emitting device includes a substrate, a nitride-based multi-layered structure epitaxially formed on the substrate, a first-type electrode and a second-type electrode formed on the nitride-based multi-layered structure and connected with the first-type layer and the second-type layer, respectively. The multi-layered structure includes a first-type layer, an active layer and a second-type layer arranged along a direction away from the substrate in the order written. The second-type layer defines a number of grooves at the top surface. Each groove has a side surface and a bottom surface adjoining the side surface. The side surface and the bottom surface cooperatively form an included angle which is in a range from 140 degree to 160 degree. | 03-10-2011 |
| 20110084298 | LIGHT EMITTING DIODE AND METHOD FOR MAKING SAME - A light emitting diode comprises a heat conductive layer, a semiconductor layer disposed above the heat conductive substrate and consisting of a p-type semiconductor layer, an active layer and an n-type semiconductor layer, a transparent electrode layer, a current blocking layer and an electrode contact pad. The p-type semiconductor layer has first concaves located on its surface distant from the active layer. The n-type semiconductor layer has second concaves located on its surface distant from the active layer. The transparent electrode layer is located on the surface of the n-type semiconductor layer except the second concaves. The current blocking layer is located in the first concaves of the p-type semiconductor layer. The electrode contact pad is located on the surface of the transparent electrode layer. The density of the second concaves decrease with distance from the electrode contact pad. | 04-14-2011 |
| 20110133204 | LIGHT EMITTING DIODE AND MANUFACTURING METHOD THEREOF - A light emitting diode includes a thermal conductive substrate, an p-type GaN layer, an active layer and an n-type GaN layer sequentially stacked above the substrate and an electrode pad deposited on the n-type GaN layer. A surface of n-type GaN layer away from the active layer has a first diffusing section and a second diffusing section. The first diffusing section is adjacent to the electrode pad and the second diffusing section is located at the other side of the first diffusing section opposite to the electrode pad, wherein the doping concentration of the first diffusing section is less than that of the second diffusing section. The n-type GaN layer has an electrical resistance larger than that of the first diffusing section which in turn is larger than that of the second diffusing section. | 06-09-2011 |
| 20110140137 | LED DEVICE AND METHOD OF MANUFACTURING THE SAME - An LED device includes a heat conductive base, and a red, a green, and a blue LED chips mounted on the base. The red LED chip includes a first n-type GaN layer, a first p-type GaN layer, and a first active layer sandwiched therebetween. The first active layer of the red LED chip is added with europium to generate red light. The green LED chip includes a second n-type GaN layer, a second p-type GaN layer, and a second active layer sandwiched therebetween. The second active layer of the green LED chip is added with indium to generate green light. The blue LED chip includes a third n-type GaN layer, a third p-type GaN layer, and a third active layer sandwiched therebetween. The third active layer of the blue LED chip is added with of indium to generate blue light. | 06-16-2011 |
| 20110156049 | LED DEVICE AND FABRICATION METHOD THEREOF - A LED device includes a n-type first semiconductor layer, a p-type second semiconductor layer, an active layer between the first semiconductor layer and the second semiconductor layer, an electrode positioned on a surface of the second semiconductor layer away from the active layer, and an ohmic contacting layer positioned on a surface of the second semiconductor layer away from the active layer. The ohmic contacting layer includes a resistance region corresponding to the electrode and a conductive region surrounding the resistance region, in which the conductive region having less resistance than that of the resistance region. | 06-30-2011 |
| 20110156594 | LIGHT EMITTING DIODE ILLUMINATING SYSTEM AND CONTROL METHOD THEREOF - A light emitting diode (LED) illuminating system includes a LED illuminating circuitry, which includes a plurality of LEDs connected in parallel, and an actuator connected to the LED illuminating circuitry to actuate the plurality of LEDs. The actuator includes a sensor and a control circuitry, which includes a controller connected to the actuator. The sensor is configured to detect an output signal of the actuator and to output the detected data value to the controller. The controller is configured to compare the detected data value with a predetermined data value, and to output a scan signal to the actuator when a LED is found to be malfunctioning. The actuator is configured to scan each LED and to output a location parameter of the malfunctioning LED to the controller based on the scan signal. A method for controlling the LED lighting system is also provided. | 06-30-2011 |
| 20110156633 | SOLAR POWER STORAGE SYSTEM AND CHARGE METHOD OF SAME - A solar power storage system includes a solar panel, an energy storage device, a transformer, and a controller. The solar panel collects energy from sunlight and outputs an actual output voltage. The energy storage device stores the energy collected from the solar panel. The transformer transforms the actual output voltage of the solar panel into a charge voltage and charges the energy storage device using the charge voltage. The controller is configured for comparing the actual output voltage with a first predetermined voltage to obtain a first comparative result, comparing an instant battery voltage of the energy storage device with a second predetermined voltage to obtain a second comparative result. The transformer adjusts the charge voltage according to the first and the second comparative results. | 06-30-2011 |
| 20110156634 | HYBRID POWER SUPPLY SYSTEM - A hybrid power supply system includes a solar panel, a rechargeable battery for receiving electrical energy from the solar panel, a line power port, a switch capable of electrically connecting the line power port and the rechargeable battery, and a power sensor for acquiring an electrical energy value from the rechargeable battery and a controller. The controller receives the electrical energy value from the power sensor, and controls the switch to electrically connect the line power port and the rechargeable battery when a voltage of the rechargeable battery falls below a predetermined value. The line power port charges the rechargeable battery to one full cycle of power output of the rechargeable. | 06-30-2011 |
| 20110156653 | SOLAR POWER SUPPLY SYSTEM AND DRIVING METHOD OF SAME - A solar power supply system includes a load device, a solar panel that converts light energy into electrical energy, an energy storage device storing the electrical energy from the solar panel, a charge/discharge control device, and a transformer device. The charge/discharge control device selects one of the energy storage device and the solar panel as an operation power supply to the charge/discharge control device and generates an output voltage. The transformer device transforms the output voltage of the charge/discharge control device into a driving voltage to drive the load device. A feedback circuit generates a feedback signal according to an actual power consumption of the load device. A power detector detects an instant output power of the charge/discharge control device. A power regulator minimizes the output power of the charge/discharge control device according to the instant output power of the charge/discharge control device and the actual power consumption of the load device. | 06-30-2011 |
| 20110158467 | SOLAR POWER DEVICE - A solar power device includes a solar panel, a rotating assembly, an image sensor, a image recognition system, and a control system. The rotating assembly is connected to the solar panel. The image sensor is positioned on the solar panel to generate an image signal. The image recognition system is connected to the image sensors to transfer the image signal to a recognition signal. The control system is connected to the image recognition system and the rotating assembly. The control system receives the recognition signal and directs the rotating assembly to re-position the solar panel according to the recognition signal. A method for controlling the solar power device is also provided. | 06-30-2011 |
| 20110159615 | LED UNITS FABRICATION METHOD - A method for fabricating a plurality of individual light emitting diode units includes forming a GaN epitaxial layer on a sapphire substrate, forming a plurality of exhaust trenches on the GaN epitaxial layer, wherein the exhaust trenches define a plurality of individual light emitting diode units, forming a reflective layer on the GaN epitaxial layer, attaching the reflective layer to a conductive substrate, removing the sapphire substrate from the GaN epitaxial layer via a laser lift-off process, wherein a gas produced during the laser lift-off process is exhausted via the exhaust trenches, and dicing the conductive substrate along the exhaust trenches to form the plurality of individual light emitting diode units. | 06-30-2011 |
| 20110159616 | METHOD OF MANUFACTURING LIGHT EMITTING DIODE - A method for making a light emitting diode is provided, which includes first providing a light emitting diode chip. The light emitting diode chip includes a substrate and a p-type semiconductor layer, an active layer and an n-type semiconductor layer sequentially formed on the substrate. And then sections with different resistance are formed in the n-type semiconductor layer by implanting ions into the n-type semiconductor layer in an ion implanter. Finally, an electrode pad is deposited on the n-type semiconductor layer. The electrical resistances of the sections increase following an increase of a distance from the electrode pad to the sections. | 06-30-2011 |
