Lg Innotek Co., Ltd.

Dong Keun Yoon

Jong Hyun Lee

Jin Woo Lee

Jun Ho Lee

Kwang Ho Lee

Jung Tae Kim

Seok Gyu Yoon

Shin Young Cho

Gwan Bon Koo

Ji Woong Jo

Jae Beom Cho

The present invention relates to a Digital Addressable Lighting Interface (DALI) interface and a power device comprising the same. The present invention can provide a DALI interface comprising: a first limiting circuit unit for outputting a limited current based on a DALI transmission signal and a DALI reception signal; and a gate drive circuit unit for generating, based on the limited current, a drain-source voltage that is used for generating a DALI signal in accordance with the DALI standard. As a result, the present invention can generate a signal complying with the DALI standard even under various voltage and current conditions of a DALI master.

Digital addressable lighting interface (DALI) and power device comprising same

A non-linear analog signal conversion circuit configured of passive elements and a lighting apparatus using the same. The non-linear analog signal conversion circuit includes: an input module for inputting a dimming signal; an inversion module for inverting the dimming signal; a non-linear conversion module for non-linearly converting input power Vinto first output power Vaccording to the inverted dimming signal; and a filter module for converting the first output power Vof an output terminal of the non-linear conversion module into reference power Vby removing noise of the first output power V.

Non-linear analog signal conversion circuit configured of passive elements and lighting apparatus using the same

A dimming circuit includes an active dimmer configured to apply input power Vin to an amplification module or an error compensation module, the amplification module configured to amplify an output current of the active dimmer, and the error compensation module configured to correct an error or distortion of the amplification module. The amplification module and the error compensation module are connected in a feedback form.

Dimming circuit

Disclosed is an LED protection circuit using a one-shot vibrator. The LED protection circuit includes an LED module; an LED load-open detection circuit for detecting a voltage applied to the LED module to vary a reference potential; a latch circuit for maintaining a latch state according to the reference potential of the LED load-open detection circuit; a current limit circuit for receiving an output signal from the latch circuit to output a first signal; an LED load connection detection circuit for varying the reference potential through the first signal to output a second signal; a trigger input circuit connected to the LED load connection detection circuit for outputting a third signal using the second signal; and a one-shot vibrator for outputting a fourth signal of a square waveform during a predetermined time when the third signal is input.

LED protection circuit

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Seoul, South Korea

Dong Keun Yoon