03

Solution Configuration

04

Motor Driver

This is an IC that controls motors by receiving signals from MCU (Micro Control Unit).
We supply various package products including Stepper / BDC / BLDC Motors
according to function.
Our motor drive ICs minimize power loss through precision speed control
and high-efficiency characteristics, maximizing system reliability.

• Features

  Sensorless Control Support: Precision speed and torque control for wheel and auxiliary motors

  Low-Power Standby Mode: Minimized battery consumption

  Enhanced System Safety: Built-in overcurrent, overvoltage, and overheat protection

• Application Examples
  Driving Motor / Wheel Drive Motor
  Auxiliary Function Stepper Motor (Tray, Door, Arm Control, etc.)

05

MOSFET

This is a power switching device that is critical for inverter circuits,
compressor and fan motor drives.
We supply various package products including High Voltage MOSFET,
Super Junction MOSFET, and Low Voltage Trench MOSFET.
Through low on-resistance (Rds(on)) and high-speed switching characteristics,
it reduces power loss and supports high-efficiency operation.

• Features

  High-Speed Switching: Minimized 30V~150V range

  Low Heat, High Efficiency: Minimizes heat generation with ultra-low Rds(on)

  Precision Control Capable: High-efficiency power device optimized for inverter drive

  Enhanced System Safety: Overcurrent/overheat protection

• Application Examples
  Main power switching (motor drive, battery path)
  Battery protection circuit

06

Bipolar Transistor

A bipolar transistor that enhances efficiency by minimizing
low power and losses.
We supply ultra-small package products.
Our bipolar transistors are devices responsible for current amplification
and switching, used in relays and low-power switching circuits
of control boards.

• Features

  Current Amplification: Provides stable drive current

  Improved Switching Speed: Stable operation in sections requiring signal transition

  Circuit Simplification: Enables miniaturization and cost reduction

  System Protection: Prevents current overload

• Application Examples
  Control board signal amplification / Auxiliary drive (relay, sub-motor)

07

Schottky Barrier Diode

This is a diode using the Schottky barrier generated through
metal-semiconductor junction. We supply ultra-small package products.
Our Schottky barrier diodes minimize power loss with low forward voltage
and fast switching characteristics, applied to power rectification,
reverse current blocking, and SMPS circuits.

• Features

  Low Power Loss: Reduces energy loss with low forward voltage drop,
  providing electricity cost reduction effect

  High-Speed Switching: Stable operation in sections requiring fast signal transition
  such as PWM control and inverter circuits

  Enhanced System Stability: Protects electronic components by minimizing overvoltage
  during reverse current and switching

  Miniaturization and Weight Reduction: Low heat simplifies thermal design, enabling overall circuit miniaturization

• Application Examples
  Battery reverse current blocking / Power section rectification circuit / Charging interface
  Freewheeling diode replacement in inverter and DC/DC converter section (low voltage)

08

Switching Diode

This is a switching diode for rectification and switching.
We supply various package products with short reverse recovery time (trr).
Our switching diodes are diodes used in circuits requiring fast ON/OFF switching,
applied to control signals and small switching circuits.

• Features

  High-Speed Switching Stability: Accurate signal transmission in PWM inverter and motor control circuits
  with fast reverse recovery in nS units

  System Efficiency Improvement: Reduces heat generation by minimizing power loss, improving overall system efficiency

  Miniaturization and Weight Reduction: Low heat simplifies thermal design, enabling overall circuit miniaturization

• Application
  Examples
  Control board signal circuit / Sensor input signal

09

Zener Diode

This is a Zener diode used in constant voltage circuits.
We supply ultra-small package products to protect ICs
from surge or static electricity.
Our Zener diodes safely conduct current above a specific voltage
to maintain constant voltage and protect circuits from overvoltage.

• Features

  Voltage Stabilization: Supplies constant voltage to main circuits despite input voltage fluctuations

  Circuit Protection: Protects key components such as motors and inverters by dispersing current during overvoltage

  Enhanced System Reliability: Ensures stable operation despite power fluctuations or external abnormal voltages

  Various Design Applications: Can be customized to various circuit conditions according to Zener voltage selection

• Application Examples
  MCU and drive IC protection circuit / Sensor and communication circuit voltage stabilization
  Battery voltage detection and protection

10

Regulator

This is a regulator used to regulate and maintain input voltage
or pressure at a stable level.
We supply various package products to ensure stable operation
of connected devices. Our regulators are used to provide stable power supply
to control boards, sensors, and microcontrollers.

• Features

  Voltage Stabilization: Stable DC voltage supply

  CTR (Current Transfer Ratio): Minimizes sensor signal errors

  Transmission Bandwidth: Includes overvoltage/overheat protection functions

• Application Examples
  Main control board / Charging circuit / Li-ion battery

11

OP Amp

This is an OP AMP that amplifies and outputs the voltage difference
between two input terminals.
We supply various package products for amplification, calculation, and filtering.
Our OP AMP is used to ensure stability in sensor interfaces and control.
Used in solutions that enable accurate measurement, protection, and control,
simultaneously enhancing energy efficiency and product reliability.

• Features

  High Input Impedance / Low Output Impedance: Can amplify sensor signals without distortion

  Low Offset Voltage & Drift: Stable operation during long-term use

  Low Noise Characteristics: Improved sensor measurement reliability

  Rail-to-Rail Input/Output Support: Advantageous even in low-voltage drive circuits

• Application Examples Indoor/outdoor heat exchanger, indoor air temperature detection signal amplification
  Refrigerant pressure monitoring, system protection
  Compressor motor and fan motor current sensing → Overcurrent protection
  Micro signal amplification → Indoor air quality control

12

Optocoupler
Optocoupler

An optocoupler is a device that transmits signals between the input and output circuits
in an electrically isolated state by activating the phototransistor (light-receiving section)
with light emitted when the internal LED turns on.
We supply various package products to ensure stable operation of connected devices.
Our optocouplers are used to provide stable isolated feedback
for power and control signals.

• Features

  Voltage Stabilization: Electrical isolation between primary side (AC high voltage) and secondary side (low voltage control)

  CTR (Current Transfer Ratio): Considers temperature and time variations

  Transmission Bandwidth: Low signal distortion and stable feedback transmission

• Application Examples
  Protection signal transmission / Secondary output → Primary output section