Home Appliance & Living
White Goods & Variable-frequency Motors
Inverter compressor and fan drive, phase current sensing and speed/position feedback for air conditioners, refrigerators, washing machines and other white goods.
Variable-frequency home appliances are extremely sensitive to cost and noise: current sensing accuracy directly affects FOC performance and acoustic noise, while component cost must be squeezed to the minimum. RJMICRO combines highly integrated current sensors with Hall switches to help appliance makers meet efficiency targets while reducing system BOM cost.
Systems and scenarios covered
Variable-frequency drives
- Inverter compressors and outdoor fans: phase current sensing and speed feedback
- direct-drive inverter washing machines: position sensing and commutation
Appliance electrical systems
- Main control supply and LDO regulation
- lid and dispenser position sensing