Zhejiang Shenghui Lighting Co., Ltd.

Other

Yehua Wan

Jinxiang Shen

Fang Chen

Jinqiang Gu

Lifeng Ling

Changzhou Jin

Xuchu Ge

Songan Ye

Linzhang Liu

The present disclosure provides a sensor light and a system for preventing false triggering of a sensor. The sensor light includes a sensor module, a light emitting module, a power drive circuit, and a shielding component. The sensor module is configured to measure incoming infrared light radiated to the sensor module, and generate a trigger signal when the measured infrared light meets a preset condition. The light emitting module is configured to emit light. The power drive circuit is connected to the sensor module and the light emitting module, and configured to receive the trigger signal from the sensor module, and control the light emitting module to emit light in response to the trigger signal. The shielding component is disposed between the sensor module and the light emitting module, and configured to shield the sensor module from radiation of infrared light generated by the light emitting module.

Sensor light and a system for preventing false triggering of a sensor

An LED light bulb comprises at least one LED light source; a driver arranged in an electrical connection with the LED light source to drive and control the LED light source to emit light; a base electrically connecting the driver to an outside power source; a heat sink provided to dissipate heat generated by the LED light source, having a supporting portion to receive and support the LED light source; a housing joined to the base to accommodate the LED light source, the heat sink and the driver to integrate as a whole. The present disclosure provides an LED light bulb which has an appearance of the traditional incandescent light bulb.

LED light bulb

A light-emitting diode (LED) smart control circuit and the related LED lighting device are provided. The LED smart control circuit includes a microprocessor, a bridge rectifier, a transformer circuit, a power grid detection unit, a voltage detection unit, a battery charging controller, a first sampling circuit, a second sampling circuit, a constant current controller, and an external rechargeable battery. The LED smart control circuit is configured for controlling LED light source components to emit light. An LED lighting device includes the LED light source components, a smart control circuit board, a rechargeable battery, a shell, and a lamp head. The smart control circuit board is integrated with the disclosed LED smart control circuit.

LED smart control circuit and LED lighting device containing the same

The present disclosure provides a time-delay lighting circuit and a lighting device. The time-delay lighting circuit includes a first voltage-current conversion circuit configured to convert a first inputted current to a current satisfying working conditions of the light emitting component; an energy storage and discharge device configured to provide power to the light emitting component when the control switch is switched off to disconnect the external power source from the time-delay lighting circuit; a charging controller configured to charge the energy storage and discharge device when the control switch is switched on to connect the external power source to the time-delay lighting circuit; and a switch status detection circuit configured to detect an on/off status of the control switch, and when the control switch is detected to be switched off, control the energy storage and discharge device to provide power to the light emitting component.

Time-delay lighting circuit and device thereof

The present invention provides an LED lighting device and a method for determining an operation time of the LED lighting device. The LED lighting device includes an LED module configured to emit light; an LED driver configured to supply power and drive the LED module; a micro controller unit (MCU) module that is connected to the LED driver and configured to measure an operation time of the LED lighting device; a display module that is connected to the MCU module and configured to receive the operation time sent from the MCU module and display the operation time; and a power supply module configured to supply power to the MCU module and the display module.

LED lighting device and a method to verify its lifespan

A power circuit for an LED lighting device including an alternative current (AC) power supply, a dimmer, a transformer and a dimming control circuit. The dimming control circuit includes a filtering unit configured to filter a voltage signal outputted from the transformer and a rectifying unit configured to receive the signal outputted from the filtering unit and rectify the signal to a DC signal. The dimming control circuit also includes a boost converter unit configured to boost the received DC voltage to a needed DC voltage and a voltage feedback control circuit unit configured to control the DC voltage boosted by the boost converter unit. Further, the dimming control circuit includes a buck converter unit configured to convert the boosted DC voltage to the voltage and current needed by the LED lighting device and a digital control unit configured to automatically adjust current strength needed by the buck converter unit.

Power circuit and diming control method for LED lighting device

A power circuit for an LED lighting device including an AC power supply, a dimmer and a control circuit is provided. The control circuit includes a filtering unit configured to filter a voltage signal coming from the dimmer and a rectifying unit configured to receive the signal outputted from the filtering unit and rectify the signal to a DC signal. The control circuit also includes a transformer unit connected to the rectifying unit. Further, the control circuit includes a dimmer phase detection unit configured to sample the rectified voltage signal at point K and convert the voltage signal to a low voltage pulse signal and a flyback conversion unit configured to receive the pulse signal outputted by the dimmer phase detection unit and adjust a current flowed through the transformer unit and a first transistor to control the output current to the LED lighting device.

Power circuit and related method for LED lighting device

A power circuit for an LED lighting device using discrete components is provided. The power circuit includes a filtering unit configured to filter an inputted AC and a rectifying unit configured to convert an AC to a DC. The power circuit also includes a transformer connected to the rectifying unit. Further, the power circuit includes a first switch and a second switch that are field effect transistors, wherein a grid electrode of the first switch is connected to a drain electrode of the second switch. Further, a drain electrode of the first switch is connected to the transformer. A source electrode of the first switch is connected to a source electrode of the second switch through a detection resistor. A grid electrode of the second switch is connected to the source electrode of the first switch through a thermistor.

LED power circuit using discrete components and configuration method

An LED lighting device and a method for making the LED lighting device, the LED lighting device having a PCB positioned over a cooling substrate on the top of a metallic heat-dissipation lamp cup. LED light sources are provided on the PCB and are connected to a power supply. Screws are used to attach the PCB to the cooling substrate. At least one screw includes a screw head electrically connected to one of the positive electrode and the negative electrode, and a screw body electrically connected to the metallic heat-dissipation lamp cup, such that the at least one screw provides a bypass discharge path between the LED light sources and the metallic heat-dissipation lamp cup to release leakage current and to protect the LED light sources.

LED lighting device and method for making the same

Driver circuit and driving method for an LED lighting device are provided. The driver circuit includes an AC power supply, a dimmer, a transformer, and/or a dimming control circuit. The dimming control circuit includes a filtering unit, a rectifying unit, a boost converter unit, a control-signal conversion unit, and/or a buck converter unit. A dimming position is defined at a point in the driver circuit to perform a dimming control process of the LED lighting device by the dimmer. A voltage corresponding to the point is boosted by the boost converter unit to provide a boosted voltage. The boosted voltage is sampled and converted by the control-signal conversion unit into an analog control voltage signal acceptable by a buck converter unit. The buck converter unit alters an amount of a current of the LED lighting device, after receiving the analog control voltage signal.

Driver circuit and driving method for LED lighting device

A LED illumination device and validation methodology of LED illumination device's lifespan, comprises a controller, timing chip and low-voltage DC power supply, the controller is connected to the display terminal, the timing chip is positioned inside the LED illumination device, so as to get real-time recording of the operating time of the LED illumination device which is transmitted to the display terminal for display; meanwhile, a light sensor is placed in the luminous zone to obtain luminosity data so as to measure real-time luminous maintenance rate. When the measured luminous maintenance rate gets lower than the luminous maintenance rate predetermined for critical lifespan, the operating time recorded by the LED illumination device at this moment is the lifespan of this LED illumination device.

LED illumination device and validation methodology of LED illumination device's lifespan

The present invention discloses a tower-shaped LED module that comprises a base, at least three LED panels mounted on the base and a bracket used to support the LED panels, wherein the LED panels are fixed on the bracket to form a pyramid. The present invention solves the traditional problem of the LED panels not secured firmly or shifting around easily. To fix the LED panels on the designed bracket, first slide each LED panel upward into sliding slots. Then insert each electrode pin of the LED panels into a corresponding pin hole in the base. Next put a screw though the base and fasten it to a supporting rod. At last solder the electrode pins of the LED panels to a printed circuit board on the bottom surface of the base. The whole assembly process is very simple and the assembled LED panels have good stability.

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Jiaxing, China

Yehua Wan