Ledvance Gmbh

Yongchang Dai

Yafen Zhang

Huajin Huang

Wang Jiang

Kun Xiong

Xiaoming Fu

Shengdie Lin

Xiangyin Hao

A method for controlling an electronic device with a remote control includes detecting a motion of the remote control and determining a command associated with the detected motion. The determined command is sent from the remote control to the electronic device. A corresponding remote control includes a motion detector for detecting a motion of the remote control, a device for determining a command associated with the detected motion, and a transmitter for sending the determined command to the electronic device.

Techniques and remote control for wireless control of a smart lamp or smart illumination system

Motion-sensing match method

A buck converter for converting a DC input voltage into a DC output voltage comprises a DC input circuit with a positive input terminal and a negative input terminal, for providing a DC input voltage, a converter circuit for converting a DC input voltage into a DC output voltage, and a DC output circuit with a positive output terminal, a negative output terminal and an output capacitor connected between the positive output terminal and the negative output terminal. The buck converter further comprises a switching device with a first switching terminal connected with the positive input terminal and a second switching terminal connected over a charging diode with the negative input terminal, a charging inductor as well as a frequency-dependent back-flow circuit connecting the positive output terminal with a power supply terminal of the switching device for supporting the power supply of the switching device.

Buck converter including frequency-dependent back-flow circuit

A lamp driver for an LED lamp includes a voltage input port which is adapted to connect the lamp driver to a power source. A boost converter circuit is connected to the voltage input port. A voltage output port is adapted for connecting an LED to the lamp driver. A shutdown circuit provides a shutdown signal, which is connected to the voltage input port for detecting an input voltage of the voltage input port and is connected to the boost converter circuit for controlling at least one active component of the boost converter. The shutdown circuit is arranged to shut down the boost converter circuit when a shutdown voltage at the voltage input port is detected. During the shutdown of the boost converter circuit, the voltage output port still provides an operation voltage for the LED.

Method for MR16 lamp to pass EMI test with CCG

Growing community of inventors

Guangdong, China

Yongchang Dai