摘要:
A lighting device controlling chip, an apparatus, a system and an addressing method thereof are provided. The lighting device has a trigger terminal for receiving a first setting voltage, an output terminal for outputting a second setting voltage and a signal receiving interface for receiving a data packet having a plurality of serially transmitted data slots. The lighting device controlling chip may automatically set an address thereof according to a voltage level of the first setting voltage and a counting signal corresponding to the number of the received data slots.
摘要:
A driving circuit of a light emitting diode (LED) and a ghost phenomenon elimination circuit thereof are disclosed. The ghost phenomenon elimination circuit which includes a ghost phenomenon elimination unit and a counter unit may determine a black insertion period according to a gray scale clock signal, and output an enable signal to the ghost phenomenon elimination unit during the black insertion period. The ghost phenomenon elimination unit may pull up the voltage levels at current driving terminals of the driving circuit so as to prevent the ghost phenomenon from occurring.
摘要:
Disclosed is a flame retardant agent, including a nitrogen-based lignin formed by reacting 1 part by weight of lignin, 0.8 to 2.4 parts by weight of a nitrogen-containing compound, and 0.3 to 0.9 parts by weight of an aldehyde under an alkaline condition. The flame retardant agent can be added to thermoplastic or thermosetting resins to form flame retardant materials.
摘要:
A driving circuit of a light emitting diode (LED) is provided, including a driving unit, a current pre-charging unit and a feedback selecting unit. The driving unit outputs a driving power to drive the LEDs and outputs at least a first feedback signal according to the current conducted by the LEDs. The current pre-charging unit is coupled to an output of the driving unit to provide a current path to the driving unit and generates a second feedback signal according to a current conducted by the current pre-charging unit. The feedback selecting unit selects and outputs one of first feedback signals or the second feedback signal according to an enable signal, and the driving unit adjusts the driving power according to an output of the feedback selecting unit so as to maintain a current driving capability of the driving circuit to provide a sufficient current to drive the LEDs.
摘要:
A driving apparatus for driving at least one first light emitting diode unit and a second light emitting diode unit includes a data transmitting unit and a driving unit. The data transmitting unit is used for receiving and storing driving data. The driving data includes first data corresponding to a first driving signal and second data corresponding to a second driving signal. The driving unit divides the first driving signal into a plurality of first sub-driving signals and the second driving signal into a plurality of second sub-driving signals, and then alternately outputs the first sub-driving signals and the second sub-driving signals to alternately drive the first light emitting diode unit and the second light emitting diode unit.
摘要:
A driving circuit, a decoding circuit and a decoding method thereof are provided. The decoding circuit includes an oscillator and a decoder including a frequency determining unit and a decoding unit. The frequency determining unit receives a clock signal and a data signal which is corresponding to DMX512 protocol, and samples one slot of the data signal according to the clock signal to generate a sample number corresponding to a slot period of the slot. Then, the frequency determining unit outputs a reference signal corresponding to the frequency of the clock signal according to the sample number. The decoding unit samples the data signal according to the clock signal and the reference signal to decode data carried on the data signal. The decoding circuit is able to sample the data signal correctly without disposing any external frequency adjusting element.
摘要:
The present invention discloses a transition metal complex having carbene ligands. The disclosed transition metal complex has a structure of a center transition metal surrounded by two identical carbene ligands and one double-chilating ligand which is a nitrogen-contain heteroaryl group compound with pyridyl group. The disclosed transition metal complex can be represented by the following formula:
摘要:
A multi-channel display driver circuit incorporating modified D/A converters has a plurality of digital comparators connected to a number generator. Each digital comparator has an output, a digital data input and a reference input. The reference inputs of all digital comparators are connected to the number generator and the outputs are respectively connected to corresponding data channels of a display. By the proposed technique, each digital comparator obtains a unique non-sequence reference signal, and then compares it with the input digital data signal. Since the non-sequential signals are input to the reference input of the digital comparator, the overshoot distortion, the harmonic distortion and the electromagnetic interference problems are prevented. Therefore, the precise imaging can be obtained with this signal modulation technique in small circuit size.