Jun Honda

Measurement-based loudspeaker excursion limiting

Load detection for switched-mode power converters

Switched mode power converter with over temperature detection

Class D amplifier circuit with bi-directional power switch

Protected digital audio driver

Startup and shutdown click noise elimination for class D amplifier

Noise free implementation of PWM modulator combined with gate driver stage in a single die

Method to reduce inrush voltage and current in a switching power converter

Noise immune over current protection with inherent current limiting for switching power converter

CLASS D AMPLIFIER WITH START-UP CLICK NOISE ELIMINATION

Gate drive for lower switching noise emission

Junction temperature sensing for MOSFET

Gate driver for Class D audio amplifier with adaptive dV/dt control

Global closed loop control system with DV/DT control and EMI/switching loss reduction

Global closed loop control system with dv/dt control and EMI/switching loss reduction

Global closed loop control system with DV/DT control and EMI/switching loss reduction

Gate driver with programmable dead-time insertion

Bi-directional current sensing by monitoring VS voltage in a half or full bridge circuit

Active EMI filter having no inductive current sensing device

Gate control circuit with soft start/stop function

Gate driver with level shift between static wells with no power supply

Volume control in class D amplifier using variable supply voltage

High voltage high speed amplifier using floating high side structure

Active EMI filter with feed forward cancellation