Ganrich Semiconductor Corporation

Epistar Corporation

Sheng-Bo Wang

Yao-Zhong Liu

Chen-Yu Wang

Chiao Fu

Jai-Tai Kuo

Jia-Tay Kuo

Chang-Hsieh Wu

Yi-Chao Lin

Chao-Kai Chang

Yi-Ru Shen

A package structure is provided herein, which includes a substrate, an integrated transistor, and an encapsulation structure. The integrated transistor is disposed on the substrate and includes a transistor, a capacitor, a resistor, a first Zener diode, and a second Zener diode. The transistor includes a gate, a drain, and a source. The capacitor is electrically connected to the gate, and the resistor is electrically connected to the gate. The first Zener diode includes a first anode and a first cathode electrically connected to the gate. The second Zener diode includes a second anode electrically connected to the first anode and a second cathode electrically connected to the source. The encapsulation structure encapsulates the integrated transistor. The package structure includes a gate terminal, a drain terminal, and a source terminal.

Package structure

A light-emitting device driving circuit is provided. The light-emitting device driving circuit includes a current source, a light-emitting device series and an input-side voltage-stabilizing circuit. The input-side voltage-stabilizing circuit is electrically connected between the current source and the light-emitting device series to provide a driving current. The input-side voltage-stabilizing circuit includes a normally-on transistor, a first resistor and a compensation capacitor. The first resistor is electrically connected to the normally-on transistor. The compensation capacitor is electrically connected to the normally-on transistor and the light-emitting device series.

Light-emitting device driving circuit

Package structure for a semiconductor element

A voltage converter circuit, comprising: a bridge rectifier; a first transistor, having a first end, a second end and a third end; a second transistor, having a first end and a second end; wherein the first end of the first transistor and the first end of second transistor are electrically connected to bridge rectifier, and the second end of the first transistor is electrically connected to the first end of the second transistor; and a Zener diode, connected between the third end of the first transistor and the second end of the second transistor.

Voltage converter circuit for converting AC voltage to DC voltage

A light emitting apparatus includes a housing, a connector, a light source, a control module board, and an antenna. The housing includes an inner space. The light source is located in the inner space. The control module board is located in the connector, wherein an accommodation space is formed by the housing and the control module board. The antenna is located in the accommodation space.

Light emitting apparatus having antenna located in accommodation space formed by housing and control module

Growing community of inventors

Hsinchu, Taiwan

Sheng-Bo Wang