RESEaRCH

Power Conversion IC

Hybrid Converter and Vertical Power Delivery for Data Center

Hybrid converters combine switching and linear regulation to achieve high efficiency and fast transient response. Vertical power delivery places power conversion stages close to the load, reducing conduction loss and IR drop while improving power density. Together, these approaches enable efficient and scalable power delivery for modern data centers and Al systems.

Motor Driver for Humanoid Robots

Humanoid robots require reliable motor drivers to operate multiple joints. The motor driver enables stable and efficient operation of joint actuators, improving overall energy efficiency and system stability.

Bipolar Supply

A bipolar supply provides both positive and negative voltages required for display panels such as AMOLED, typically implemented using a single-inductor-based SIBO converter to simultaneously achieve high power efficiency and low output voltage ripple with stable power delivery.

Mobile Processors (Thermal-Aware Power Management)

Mobile processors require intelligent power management to maintain high performance under strict thermal limits. Thermal-aware power management dynamically controls voltage, frequency, and workload distribution, improving energy efficiency, device stability, and user experience.

SoC Power Management (Low-Dropout Regulator)

Low-dropout Regulators (LDOs) provide clean, stable, and efficient voltage supplies for SoC systems, enabling reliable operation of analog, digital, and RF circuits across a wide range of applications.

Energy Storage Systems (Charger, Battery Management)

Energy storage systems require reliable charger and battery management circuits for safe and efficient battery operation. The charger regulates energy transfer, while the Battery management system (BMS) protects the battery by monitoring voltage, current, temperature, and cell balance.

Wireless Power transfer & Energy Harvesting

Multi-Source Energy Harvesting

Multi-source energy harvesting integrates multiple ambient energy sources (vibration, solar, thermal, and radio frequency) to generate electrical power for self-sustaining systems, such as the Internet of Things (loT) and wireless sensor networks, by reducing or eliminating the need for battery replacement or recharging.

Smart Infrastructure (Piezoelectric-Based Vibration Energy Harvester)

Harvesting ambient vibration energy using a piezoelectric capacitive energy modulation

Implantable Biomedical Devices

Resonant wireless power transfer delivers energy across skin and tissue to implanted devices through loosely coupled coils, enabling safe, battery-rechargeable operation without any physical wiring. A current-mode resonant receiver accumulates RF energy over multiple LC resonance cycles, then efficiently charges the implant battery - eliminating residual power loss.

Envelope Tracking

5G/6G Wireless Transmitters (Dynamic Voltage Scaling)

Envelope tracking (ET) is a key technique for powering high-band RF circuits in 5G and 6G systems. The supply modulator dynamically adjusts its output voltage in real time by tracking the envelope of the RF input signal, delivering exactly the power demanded by the load - achieving high efficiency.

High-Speed Wireless Communication (Efficient RF Transmitters)

Efficient RF Transmitters need efficiency optimization by accurately delivering the rapidly changing power demanded by the Power Amplifier (PA). It accomplishes this by utilizing diverse architectures to separate and independently supply the required high-frequency and low-frequency power.

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