Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Jin Myeong Yang

Woo Young Lee

Dae Woo Lee

Jun Ho Kim

Jin Young Yang

Sihun Yang

In Yong Yeo

Si Hun Yang

Gyu Yeong Choe

Youngjin Kim

Youn Sik Lee

JinYoung Yang

Inyong Yeo

Young Jin Kim

Jong Pil Kim

Tae Jong Ha

Jae Eun Cha

Min Seong Choi

Jongpil Kim

Han Geun Jang

JaeEun Cha

Sang Cheol Shin

Seong Jin Lee

Myung Ill You

Byeong Seob Song

Sung Won Park

Ji Han Lee

Je Hwan Lee

Tae Hwa Kim

Taejong Ha

Youn Sook Lee

Han Jin Do

A power module includes an upper substrate, a lower substrate, a first semiconductor chip, a first spacer configured to electrically connect a first metal layer to a second metal layer, a second spacer configured to electrically connect the first semiconductor chip to the first metal layer, a first connection layer having conductivity, disposed between the upper substrate and the lower substrate, and configured to allow the first spacer and the second spacer to penetrate the first connection layer, and a power lead.

Power module

A power module includes a power semiconductor device, a first power lead electrically connected to a first power terminal of the power semiconductor device, a second power lead disposed in parallel to the first power lead near the first power lead and electrically connected to a second power terminal of the power semiconductor device, and a conductive plate disposed to be spaced apart from the first power lead or the second power lead by a predetermined distance such that a region overlapping with the first power lead or the second power lead is formed.

Disclosed herein is a battery charger for electric vehicle includes a motor configured to generate power for driving the electric vehicle, an inverter configured to provide the power to the motor, an AC power input terminal configured to be input at least one AC power of single phase AC power and polyphaser AC power from a slow charger, a power factor corrector configured to include a plurality of full bridge circuits through which the AC power is input through the AC power input terminal, a link capacitor configured to connect in parallel with the power factor corrector, a switch network configured to include a first switch SW A provided to connect any one of a plurality of AC power input lines and a neutral line constituting the AC power input terminal with the power factor corrector, and a second switch provided to transfer one of a direct current power input from a quick charger and an alternating current power input from a slow charger to a high voltage battery and a controller configured to control the power factor corrector and the switch network according to the conditions of the AC power and the DC power.

Battery charger for electric vehicle

A system of charging a battery of a vehicle is provided. The system includes a charger having a direct current (DC) capacitor to which a DC voltage converted from an AC charge voltage is applied and a first DC converter that converts a magnitude of a voltage of the DC capacitor. A first battery is connected to the first DC converter and is charged with a DC voltage converted by the first DC converter. A second DC converter is connected to the battery and converts a magnitude of a voltage of the battery. A second battery receives a DC voltage converted by the second DC converter. A controller charges the DC capacitor up to a predetermined initial charge voltage using power stored in the second battery by operating the second DC converter and the first DC converter in a backward direction before the AC charge voltage is provided to the charger.

System of charging battery of vehicle and method for controlling the same

A united converter apparatus and an operating method thereof are disclosed. The united converter apparatus includes a high-voltage charger charging a high-voltage battery, using a commercial power and a low-voltage charger charging a low-voltage battery, using the high-voltage battery. The high-voltage charger includes a voltage level adjustment device boosts a voltage of the commercial power to apply the boosted voltage to the high-voltage battery and drops a high voltage applied from the high-voltage battery to apply the dropped voltage to the low-voltage charger.

United converter apparatus and operating method thereof

A power conversion system for vehicles is provided. The system includes a switching circuit having first input/output terminals, second input/output terminals and a plurality of switching elements connected between the first input/output terminals and the second input/output terminals. A first energy storage device is connected to the second input/output terminals and has a preset charging/discharging voltage. A first voltage conversion circuit converts power output from the first input/output terminals to output a voltage less than the voltage of the first energy storage device. A second energy storage device is charged/discharged with the output voltage of the first voltage conversion circuit. A controller controls open/short-circuit states of the switching elements based on whether the first energy storage device is being charged and whether the vehicle is traveling. When the first energy storage device is being charged, AC charging power is provided to the first input/output terminals from outside of the vehicle.

Power conversion system for vehicles and control method thereof

A vehicle charging apparatus includes: an AC/DC converter configured to variably output a DC link voltage; and a DC/DC converter electrically connected to the AC/DC converter and configured to acquire an output voltage by conversion of the DC link voltage outputted by the AC/DC converter and transmit the acquired output voltage to a battery. The AC/DC converter includes: a first switch element configured to adjust a power factor of the AC/DC converter according to an operation of the first switch element, and a second switch element configured to increase the DC link voltage outputted by the AC/DC converter according to the operation of the first switch element.

Vehicle and vehicle charging apparatus

A charging apparatus for an electric vehicle is provided. The apparatus charges a vehicle battery upon receiving power from different power sources. The apparatus includes a motor generating power to drive the electric vehicle and an inverter supplying power to the motor. An AC power input terminal receives at least one of single-phase AC power and multi-phase AC power. A power factor corrector having a single three-leg half bridge circuit receives the AC input power through the AC power input terminal. A link capacitor is charged through a combination of the power factor corrector, the motor, and the inverter. A switch network has at least one switch for selectively connecting the AC power input terminal to the power factor corrector, the link capacitor, the motor, or the inverter. A controller operates the power factor corrector, the switch network, and the inverter based on a condition of received AC input power.

Charging apparatus for electric vehicle

A motor driving and battery charging apparatus is provided. The apparatus includes a motor having a plurality of coils, a rectifier circuit connected to the plurality of coils, and a high voltage battery. An inverter generates a driving current from an output voltage of the high voltage battery and supplies the driving current to the motor while the motor operates. While the high voltage battery is charged, the rectifier circuit rectifies an alternating current (AC) of an external power source, the motor and the inverter compensate for a power factor of the current rectified by the rectifier circuit, and the high voltage battery is charged with an output current of the motor and the inverter.

Motor driving and battery charging apparatus and vehicle

A low voltage DC-DC converter for a vehicle includes: a switching circuit including a plurality of capacitors and a plurality of switches and converting a high voltage output from a high voltage battery into an AC voltage; a transformer converting the AC voltage output from the switching circuit into a low voltage; a current sensor measuring a current value output from the transformer; and a controller comparing the current value measured by the current sensor with a reference value to determine whether a current mode is a continuous current mode or a discontinuous current mode, and controlling one of the plurality of switches to be turned on or off as the determination result.

Low voltage DC-DC converter for vehicle and method of controlling the same

A vehicle may include a first battery to output power of a first voltage, a second battery to output power of a second voltage, a DC-DC converter to convert the first voltage of the first battery into the second voltage, and to supply the power of the second voltage to the second battery. The DC-DC converter may include a transformer to convert the first voltage into the second voltage, a first switch to control first current input to the transformer from the first battery, a current sensor to measure a value of second current output to the second battery from the transformer, and a controller to turn on/off the first switch based on a set turning-on/off frequency. The controller may delay turning-on/off of the first switch based on the measured value of the second current.

Vehicle having a DC-DC converter, and a method of controlling the DC-DC converter for a vehicle

The present disclosure provides a vehicle, a vehicle charging apparatus, vehicle charging system, and a vehicle charging method. The vehicle charging apparatus may include: a first coil; a second coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the first coil; a third coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the second coil; and a fourth coil having one end selectively connected to one end of the second coil, and the other end selectively connected to the other end of the first coil, where the fourth coil intersects the third coil.

Vehicle, vehicle charging apparatus, vehicle charging system, and vehicle charging method

A single direct current (DC)-DC converter may include a switching part switching an input DC voltage; first and second transforming parts transforming an output of the switching part; a rectifying part rectifying outputs of each of the first and second transforming parts; and an output part filtering and outputting an output of the rectifying part.

Integrated magnetic apparatus and DC-DC converter including the same

A method and apparatus for controlling an on-board charger (OBC) are provided. The method includes monitoring a voltage of an input power source, increasing or decreasing the voltage of the input power source to a preset output voltage of a power factor corrector (PFC), and operating a converter receiving the preset output voltage to adjust a switching frequency of the converter based on a ripple current of an output terminal of the converter. Additionally, the converter includes a first switch configured to receive a first voltage of a first capacitor mounted within the PFC and a second switch configured to receive a second voltage of a second capacitor mounted within the PFC.

Method and apparatus for controlling on-board charger

Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC (silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.

Growing community of inventors

Busan, South Korea

Jin Myeong Yang