Class / Patent application number | Description | Number of patent applications / Date published |
315165000 | Diverse type current supplies | 7 |
20110260631 | MULTI POWER SUPPLY APPARATUS FOR DRIVING LIGHT EMITTING DIODES - There is provided a multi power supply apparatus for driving light emitting diodes that is synchronized with a frequency of one output power of multi output power to control a switching of the multi output power and simplifies power conversion in supplying power for driving light emitting diodes. The multi power supply apparatus for driving light emitting diodes includes a power converter that converts an input power into a first power according to a preset first conversion scheme and converts the input power into a second power according to a second conversion scheme set to be different from the first conversion scheme; first and second drivers that receive the first power and the second power from the power converter to drive light emitting diodes; a feedback unit that feedbacks detection signal from the first and second LED drivers; and a power conversion controller that controls a power conversion switching frequency of the first power of the power converter according to the detection signal from the feedback unit and is synchronized with the power conversion switching frequency to control a duty of the second power of the converter. | 10-27-2011 |
20120242234 | Low Voltage Coupling Design - Apparatus and associated methods relate to an electrical interface design architecture to independently excite each of a network of light strings and/or light string controllers with any of a number of independent excitation signals. In an illustrative example, each of the light strings may receive a selected one of the excitation signals conducted via a wiring assembly to an interface formed as a plug or a corresponding socket. In some embodiments, the interface may galvanically connect one or more of the excitation signals to a corresponding load according to user-selection of a relative orientation between the plug and the socket. In some implementations the load may include a down-stream controller that draws operating power through a selected one of the conductors at the interface. In various implementations, the interface may supply a load such as a multi-channel cable or single channel light string, for example. | 09-27-2012 |
20130175932 | DRIVER IC OF DISPLAY APPARATUS AND METHOD OF GENERATING LOGIC VOLTAGE USING DRIVER IC - A driver integrated circuit of a display apparatus generates a logic voltage in a power environment in which an analog voltage and a logic input/output voltage are irregularly inputted to the driver integrated circuit. The driver integrated circuit includes a first power generating unit that generates a first reference current and a first reference voltage based on the analog voltage, a second power generating unit that generates a second reference current and a second reference voltage based on the logic input/output voltage, and a logic voltage generating unit that generates a logic voltage in response to the first reference current and voltage or the second reference current and voltage according to an application order of the analog voltage and the logic input/output voltage. | 07-11-2013 |
20140139122 | SYSTEMS AND METHODS FOR MULTI-STATE POWER MANAGEMENT - The present disclosure is directed to a solution providing multi-state power management. In some aspects, the design of the multi-state power management system (MPMS) facilitates switching to battery back up power upon identifying a power outage and further controlling the intensity level of a load (e.g., a light source) such that the light run time meets a minimum required run time. The MPMS may be designed and configured to identify a power outage and a battery status based on the voltage at a voltage input of the lighting device. The design may also include controlling the intensity level of the light source responsive to temperature measurements, e.g., ambient temperature or the temperature of one or more components, to maintain the health of the system. | 05-22-2014 |
20150319824 | LOW VOLTAGE COUPLING DESIGN - Apparatus and associated methods relate to an electrical interface design architecture to independently excite each of a network of light strings and/or light string controllers with any of a number of independent excitation signals. In an illustrative example, each of the light strings may receive a selected one of the excitation signals conducted via a wiring assembly to an interface formed as a plug or a corresponding socket. In some embodiments, the interface may galvanically connect one or more of the excitation signals to a corresponding load according to user-selection of a relative orientation between the plug and the socket. In some implementations the load may include a down-stream controller that draws operating power through a selected one of the conductors at the interface. In various implementations, the interface may supply a load such as a multi-channel cable or single channel light string, for example. | 11-05-2015 |
20160081158 | CIRCUIT FOR DRIVING LIGHTING APPARATUS AND METHOD THEREOF - A circuit for driving a lighting apparatus is provided. The circuit includes a valley signal generator configured to generate a valley signal based on an input voltage, an input voltage determining unit configured to determine whether the input voltage corresponds to a direct voltage or a full-wave rectified AC voltage based on the valley signal, an AC voltage simulation unit configured to generate a virtual valley signal when the input voltage is a DC voltage, and a switching device controller configured to control a switching device used to drive an LED module based the determination and at least one of the valley signal and virtual valley signal. | 03-17-2016 |
315166000 | Simultaneous application to a load device | 1 |
20130057161 | Pulse Output Circuit, Shift Register and Display Device - A pulse is input to first and second TFTs to turn ON the first and second TFTs so that the potential of a node α rises. When the potential of the node α reaches (VDD−VthN), the node α enters a floating state. Accordingly, a third TFT then turns ON, and potential of an output node rises as a clock signal reaches the level H. On the other hand, potential of a gate electrode of the third TFT further rises due to an operation of capacitance as the potential of the output node rises, so that the potential of the output node would be higher than (VDD+VthN). Thus, the potential of the output node rises to VDD without voltage drop caused by a threshold of the third TFT. | 03-07-2013 |