Signify Holding B.v.

Zhaoting Li

Deyong Kong

Xiujuan Wu

Li Sun

Jing Yang

Xiaolin Chen

Borong Su

Xiaofeng Wang

Han Lu

Zhengyu Wang

Yuafen Cheng

Xiangdong Zhang

A retrofit tubular lamp having a single switch device configured to selectively connect a first end and a second end of an input interface together. When the two ends are connected, a converter is bypassed whilst supplying power to a light emitting arrangement of the lamp. When the two ends are disconnected, power is provided to the light emitting arrangement via the converter. The single switch device is further configured so that, when disconnecting the two ends from one another, a creepage distance between the two ends is equal to or greater than a predetermined safety distance (i.e. a safety creepage is created).

Retrofit tubular lamp with single switch device

A rectifying arrangement for an LED driver comprising a rectifying circuit and a clamping arrangement provides a low-impedance path between input terminals of the rectifying circuit in response to an abnormal operation of the rectifying arrangement, such as an open circuit of one rectifying branch of the rectifying arrangement. The low-impedance path is maintained for a plurality of cycles of an AC power supply provided to the rectifying circuit, and can be maintained on a (semi-)permanent basis.

Rectifying arrangement of a driver for an LED lighting unit

Growing community of inventors

SHANGHAI, China

Zhaoting Li