Samsung Electro-mechanics Co., Ltd.

Solum Co., Ltd.

Hyundai Dymos Inc.

Min Jin Kim

Ki Hong Kim

Byoung Woo Ryu

Heung Gyoon Choi

Jong Rak Kim

Ju Rae Kim

Kyu Tae Seo

Dae Hoon Choi

Jin Woo Lee

Ho Cheoul Lee

Deuk Kyu Byun

A power seat system includes: a motor that changes a position of a power seat by performing a rotational operation; a Hall sensor that senses a change in Hall voltage according to the rotation of the motor and outputs a pulse signal; and a motor reverse rotation detection unit that monitors outputs from the motor and the Hall sensor, and detects an occurrence of a reverse pulse according to a motor reverse rotation when a motor current overshooting section and a change in pulse signal value are simultaneously detected in accordance with stop of the motor.

Power seat system for sensing motor reverse rotation and method thereof

There is provided a voltage control circuit that is applicable to a LED device, a power supply or the like. The voltage control circuit includes: a voltage dividing unit dividing a supply voltage into a first voltage and a second voltage different from each other; a shunt regulator adjusting the first voltage according to the second voltage; and an output circuit unit outputting the voltage regulated by the shunt regulator.

Voltage control circuit with temperature compensation function

There are provided a light driving apparatus capable of being commonly used in various types of dimmers, and a driving method therefor. The light driving apparatus includes: a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supply of power from the driving unit.

Light driving apparatus and driving method therefor

There are provided a dimming control apparatus, a lighting system driving apparatus, and a dimming control method, the dimming control apparatus including a voltage converting unit converting a dimming signal from a dimmer into dimming voltage, an analog-to-digital (A/D) converting unit converting the dimming voltage into a digital dimming value, a dimming setting unit determining whether or not the digital dimming value is included in a preset dimming value range, and when the digital dimming value is not included in the preset dimming value range, resetting the dimming value range so as to allow the digital dimming value to be included in the reset dimming value range, a memory unit storing a dimming control value corresponding to the digital dimming value, and a dimming control unit generating a dimming control signal based on the dimming control value corresponding to the digital dimming value from the A/D converting unit.

Dimming control apparatus, light system driving apparatus and dimming control method

A lamp driving circuit includes a first printed circuit board and a second printed circuit board. The first printed circuit board includes a switching unit for switching an input power source, a control unit for controlling the switching unit, an inverter transformer connected to the switching unit, and a voltage conversion unit for converting a feedback reference current for controlling an output current applied from the inverter transformer into a reference voltage and applying the reference voltage to the control unit. The voltage conversion unit is connected to the inverter transformer and the control unit. The voltage conversion unit is connected to a first feedback terminal. The second printed circuit board includes a plurality of balance coils connected to a plurality of lamps so that the same output currents are applied to the lamps, a second feedback terminal connected to the first feedback terminal, and a current conversion unit connected to the second feedback terminal.

Lamp driving circuit

The present invention provides a connector including: a printed circuit board including a guide hole and a locking hole; a plurality of connection pads provided on a top surface of the printed circuit board; a housing which is mounted on the printed circuit board and including a guide inserted into the guide hole and a locking unit inserted into the locking hole, which are protrudingly formed on a bottom surface of the housing; a plurality of terminals inserted and fixed into the housing so that one ends are positioned inside the housing and the other ends are projected to an outside of the housing; and terminal units in contact with top surfaces of the connection pads by being connected to the one ends of the terminals inside the housing.

Growing community of inventors

Gyunggi-do, South Korea

Min Jin Kim