Abstract: A light emitting device with low voltage-endurance components includes a light emitting diode string, M first control circuits, a detection unit and a current control circuit. The light emitting diode string includes M first light emitting diodes connected in series. Each first control circuit includes a first switch. One end of the light emitting string is coupled to a node of an input voltage. The first switch is connected to its related first light emitting diode in parallel and can enable a bypass current path. The detection unit detects the potential of the input voltage to produce a current detection signal. The current control circuit is coupled to the M-th one of the M first control circuits and the detection unit and controls the M-th one of the M first control circuits to selectively enable the bypass current path according to the current detection signal.

Abstract: A light emitting module, a dimmer system and a controller for color temperature modulation are provided, and the dimmer system includes the light emitting module and the controller coupled to the light emitting module. The light emitting module includes a series of light emitting units. The light emitting unit includes a first light emitting diode (LED) for emitting light of a first color temperature, a second LED for emitting light of a second color temperature, and a switch connected to the second LED in series. The series circuit of the second LED and the switch is connected to the first LED in parallel. The switch is optionally turned on in response to a control signal. The controller optionally enables the light emitting units in a preset order. When enabling one of the light emitting units, the controller conducts the first LED.

Abstract: A light emitting diode load board includes a substrate, a first dielectric layer, a second dielectric layer and a first conductive pad and a second conductive pad. The second dielectric layer includes a first structure part, a second structure part and a third structure part. The first dielectric layer is disposed on the substrate. The first structure part is disposed on the first dielectric layer and has a first sidewall. The second structure part is disposed on the first structure part and has a second sidewall. The third structure part is disposed on the second structure part and has N sidewalls. The second sidewall is more prominent than the first sidewall. The first sidewall, the second sidewall and the N sidewalls define the first etched part, and the part of the first dielectric layer is exposed from the first etched part. The first conductive pad is disposed in the first etched part.

Abstract: A light emitting device with low voltage-endurance components includes a light emitting diode string, M pieces of first control circuit, a detection unit and a current control circuit. The light emitting diode string includes M pieces of first light emitting diode connected in series. Each first control circuit includes a first switch. One end of the light emitting string is coupled to a node of an input voltage. The first switch is connected to its related first light emitting diode in parallel and can enable a bypass current path. The detection unit detects the potential of the input voltage to produce a current detection signal. The current control circuit is coupled to the M-th piece of the first control circuits and the detection unit and controls the M-th piece of the first control circuits to selectively enable the bypass current path according to the current detection signal.

Abstract: A high speed transimpedance amplifier includes an inverting unit, at least one gain module, and a feedback resistor. The inverting unit has an input terminal coupled to a photodiode for receiving an input voltage, and an output terminal for outputting a first voltage. The at least one gain module has an input terminal coupled to the output terminal of the inverting unit for receiving the first voltage, and an output terminal for outputting an output voltage. Each gain module includes a first gain inverting unit and a second gain inverting unit which are coupled to each other. The first gain inverting unit and the second gain inverting unit dominate bandwidth of the high speed transimpedance amplifier. The feedback resistor is coupled to the input terminal of the inverting unit and the output terminal of the at least one gain module for determining a transimpedance of the high speed transimpedance amplifier.

Abstract: A driving method of a laser diode includes setting a bias current, a modulation current, a first target corresponding to a predetermined average power, and a second target corresponding to a predetermined average modulation power; executing a first adjusting current step group; generating a temporary modulation current according to the modulation current; executing a second adjusting current step group; and executing the first adjusting current step group again.

Abstract: A high speed transimpedance amplifier includes an inverting unit, at least one gain module, and a feedback resistor. The inverting unit has an input terminal coupled to a photodiode for receiving an input voltage, and an output terminal for outputting a first voltage. The at least one gain module has an input terminal coupled to the output terminal of the inverting unit for receiving the first voltage, and an output terminal for outputting an output voltage. Each gain module includes a first gain inverting unit and a second gain inverting unit which are coupled to each other. The first gain inverting unit and the second gain inverting unit dominate bandwidth of the high speed transimpedance amplifier. The feedback resistor is coupled to the input terminal of the inverting unit and the output terminal of the at least one gain module for determining a transimpedance of the high speed transimpedance amplifier.

Abstract: A automatic power control loop comprises a photo diode used for sensing a light intensity of a laser diode to generate a feedback current, a switch selector used for selecting one among a plurality of predetermined currents according to a control signal generated by a controller, a transducer used for transferring a current different between the feedback current and the selected predetermined current into a load voltage, a comparator used for comparing the load voltage with a reference voltage to generate a comparison signal, a counter used for counting a count value according to the comparison signal and the control signal, and a laser diode driver used for generating a corresponding bias current in response to the count value to drive the laser diode. Thereby, the bias current will be adjusted within an allowable range, so that the light source of the laser diode can maintain a constant light intensity.

Abstract: A laser diode control circuit loop comprises a reference circuit with a programmable reference current, a first endpoint thereof providing a first voltage and a second endpoint thereof providing a second voltage, according as the reference current passing through the first endpoint and the second endpoint; and a driving circuit, a third endpoint thereof connected to the first endpoint of the reference circuit, a fourth thereof connected to the second endpoint of the reference circuit, a output end thereof providing a driving voltage and an output current, and the reference current of the reference circuit and the output current of the driving circuit are as direct ratio. With regard to the operation field of the laser diode driving circuit, the operation limitation within low voltage can be got over, according as the output current from the reference current matching.

Abstract: Methods for detecting the presence or absence of an analyte in a sample are disclosed. Kits for performing the analysis methods of the invention are also disclosed.

Abstract: Methods, compositions, and kits for modulating the stability of at least one nucleic acid duplex, are disclosed.

Abstract: Methods for detecting the presence or absence of an analyte in a sample are disclosed. Kits for performing the analysis methods of the invention are also disclosed.

Abstract: Methods, compositions, and kits for modulating the stability of at least one nucleic acid duplex, are disclosed.

Abstract: Methods for identifying a site on a nucleic acid sequence having a desired free energy variability are disclosed. The methods are useful for, e.g., selecting antisense oligonucleotides, e.g., for therapeutic use.

Abstract: Methods for detecting the presence or absence of an analyte in a sample are disclosed. Kits for performing the analysis methods of the invention are also disclosed.

Abstract: Nucleic acid capture moieties, methods of using nucleic acid capture moieties, reaction mixtures including nucleic acid capture moieties, and kits including nucleic acid capture moieties are disclosed.