| Patent application number | Description | Published |
|---|
| 20130093331 | LAMPS - An embodiment of the invention provides a lamp comprising a control circuit and a light emitting device. The light emitting device comprises a plurality of light emitting units with different wavelengths. The control circuit calibrates a control signal according to an environment light to adjust a light spectrum of the light emitting device by controlling the luminance of each light emitting unit. | 04-18-2013 |
| 20130093334 | LAMPS AND ILLUMINATING SYSTEM - A lamp comprising a light emitting device and a controller is disclosed. The controller receives a control signal from a handheld device and switches the light emitting device according to the control signal such that the light emitting device operates in a light emitting mode corresponding to the control signal, in which the control signal is generated by the handheld device according to real-time information. | 04-18-2013 |
| 20130093344 | LAMPS AND CONTROL CIRCUIT - An embodiment of the invention provides a lamp comprising a first emitting device, a second emitting device, and a control signal generation device. The control signal generation device generates a first control signal and a second control signal to control the first emitting device and the second emitting device, so that a first light flux generated by the first emitting device is equivalent to a second light flux generated by the second emitting device, wherein the second control signal is generated according to the first control signal. | 04-18-2013 |
| 20130093349 | DRIVING CIRCUIT AND LAMPS - The invention relates to a driving circuit comprising a first bridge circuit, a second bridge circuit, a first protection device and a second protection device. The first bridge circuit comprising a first positive input terminal, a first negative input terminal, a first positive output terminal and a first negative output terminal is coupled to an AC voltage source to output a first voltage. The second bridge circuit comprising a second positive input terminal, a second negative input terminal, a second positive output terminal and a second negative output terminal is coupled to the AC voltage source to output a second voltage. The second and the first negative output terminals are both coupled to the ground potential. The first protection device is coupled between the second positive input terminal and the AC voltage source. The second protection device is coupled between the second negative input terminal and the AC voltage source. | 04-18-2013 |
| 20130147354 | ILLUMINATION CONTROLLING CIRCUIT AND ILLUMINATION SYSTEM - The invention discloses an illumination controlling circuit coupled between a household electricity input and an illumination lamp. The illumination controlling circuit includes a dimmer module, a sampling-and-holding circuit, a differential circuit, an integrator circuit and a clamping circuit. The dimmer circuit is used for generating a dimming signal which includes a plurality of waveform pulses. The sampling-and-holding circuit samples from the dimming signal, so as to obtain an average waveform pulse. The differential circuit is used for extracting a voltage difference of the average waveform pulse. The integrator circuit performs integration on the average waveform pulse according to the voltage difference, so as to generate a direct current voltage signal. When a level of the direct current voltage signal exceeds a threshold voltage level of the clamping circuit, the direct current voltage signal is used for driving the illumination lamp. | 06-13-2013 |
| 20130169183 | ILLUMINATION CONTROL CIRCUIT AND ILLUMINATION CONTROL METHOD - The invention discloses an illumination control circuit and an illumination control method. The illumination control method includes modulating an alternating current input signal and accordingly generating a dimming signal, which includes several waveform pulses each with an adjustable conduction angles; continuously sampling the waveform pulses of the dimming signal and forming an average waveform pulse from the sampled waveform pulses; extracting the average waveform pulse, which has an average conduction angle corresponding to the conduction angles of the waveform pulses; performing an integration on the sampled average waveform pulse and accordingly generating a current-controlling signal; and driving an illumination lamp according to the current-controlling signal. | 07-04-2013 |
| 20130307433 | CONTROL METHOD OF LAMP - The control method comprises the following steps. Firstly, whether a touch event occurs in a control device is determined. Then, responding to a color temperature set and a brightness set from the control device, a first PWM and a second PWM is generated. Then, whether the lamp connects with to the control device is determined. Then, the first PWM and the second PWM is packaged in a color control package if the lamp connects with to the control device. Then, the color control package is transmitted to the lamp in wireless. | 11-21-2013 |
| 20140111105 | DIMMER CIRCUIT AND LIGHTING APPARATUS USING THE SAME - A dimmer circuit and a lighting apparatus using the same are provided. The dimmer circuit comprises a dimmer, a rectifier, a sample-and-hold unit, an integral unit and a current holding circuit. The dimmer is coupled to an AC for modulating the AC into an alternating signal. The rectifier couples the dimmer and the AC for rectifying the alternating signal into a DC signal. The sample-and-hold unit is coupled to the rectifier for sampling the DC signal to obtain an average positive wave pulse. The integral unit is coupled to the sample-and-hold unit for integrating the average positive wave pulse to generate a DC voltage. The current holding circuit comprises a switch and a bleeder. The current holding circuit determines the on/off state of the switch according to a comparison between the DC voltage and a reference voltage, such that the DC signal passes through the bleeder or the switch. | 04-24-2014 |
| 20140191679 | DIMMING CIRCUIT AND LIGHTING DEVICE USING THE SAME - A dimming circuit and a lighting device using the same are provided. The dimming circuit comprises an interface trigger unit, an average duty cycle calculating unit, a control voltage calculating unit and a comparing unit. The interface trigger unit receives an on-time of each pulse width from each period in a PWM signal. The average duty cycle calculating unit is coupled to the interface trigger unit and calculates a ratio of the on-time to the period. The control voltage calculating unit is coupled to the average duty cycle calculating unit, and calculates a desired voltage according to the ratio. The comparing unit is coupled to the control voltage calculating unit, and sends the desired voltage and a differential voltage to a driving circuit. | 07-10-2014 |
| 20140286015 | DUAL-USE LIGHT FIXTURE HAVING AC AND DC LEDS - A dual-use light fixture having AC and DC LEDs includes a heat-dissipating housing, a printed circuit board located on a first end of the heat-dissipating housing, AC and DC LED chips located on the printed circuit board, and a power supply pedestal coupled to a second end of the heat-dissipating housing. The power supply pedestal includes an AC plug, a DC driving unit, and a thread connector. The AC plug is electrically connected to the printed circuit board for inserting into an AC outlet to provide an AC power. The DC driving unit is located in an accommodating space formed by the power supply pedestal and the heat-dissipating housing and is electrically connected to the printed circuit board. The thread connector is coupled to another AC power, and the AC power is converted into a DC power by the DC driving unit. | 09-25-2014 |
