Samsung Electro-Mechanics Co., Ltd.

Young Jong Yoo

Jin Hwan Kim

Doo Ho Yoo

Jea Hoon Lee

Gyoung Heon Ko

Yeo Ju Cho

Nam Kyu Lee

A multilayer electronic component has a structure in which an internal electrode connected to a positive (+) terminal of a circuit and an internal electrode connected to a ground of the circuit are implemented together on one dielectric layer and external electrodes commonly use a multi-terminal connected to the ground of the circuit.

Multilayer electronic component

There is provided a driving circuit of a light emitting device. The driving circuit of a light emitting may include: a DC/DC converter converting an input DC voltage into an output DC voltage; a light emitting device block including a plurality of LED groups connected to an output terminal of the DC/DC converter; a current source circuit unit including a plurality of current sources; a voltage detection unit detecting the output DC voltage of the DC/DC converter; a minimum voltage detection unit detecting a minimum voltage among a plurality of voltages between the plurality of LED groups and the plurality of current sources, respectively; and a single comparator including a first non-inverting input terminal receiving the voltage detected by the voltage detection unit, a second non-inverting input terminal receiving the minimum voltage detected by the minimum voltage detection unit, and an inverting input terminal receiving a predetermined reference voltage.

Light emitting diode driving circuit having voltage detection

Growing community of inventors

Suwon-si, South Korea

Young Jong Yoo