STEVAL-KITXCB [STMicroelectronics]

The STEVAL-KITXCB is an evaluation kit for Ki cordless kitchen transmitter. The evaluation kit includes power inverter board, auxiliary power supply board, NFC board, inverter microcontroller board, power coil and NFC coil, and GUI display board. Thanks to the modular design approach, it becomes easier for the user to test and debug the various sections involved.

Ki cordless kitchen standard targets to replace traditional kitchen appliances using power cords (for example: mixer, toaster, rice cooker, coffee makers etc.) and to combine eventually with an induction cooktop. This Ki cordless kitchen standard defines wireless power transfer to all kitchen appliances up to 2.2 kW. At every zero‑crossing of input mains voltage the power transfer is stopped to have reliable NFC communication with the receiver.

• 2.2 kW at 230 Vac Ki cordless kitchen transmitter
  • New upcoming standard from Wireless Power Consortium - WPC
• Inverter topology: half-bridge
• Digitally controlled with user interface
• NFC based communication between transmitter and receiver
  • Enables auxiliary power and bidirectional data path
  • Provides advanced features via connectivity
  • Essential for interoperability and safety
• Fast and high-resolution power control
  • Phase cutting (reusing communications gaps)
  • Duty-cycle control
  • Frequency control
• Control type 0 and type 1
• Comprehensive safety mechanisms
  • Over current protection
  • Cycle-by-cycle current protection
  • Hard-switching detection
  • Over power protection
  • Over temperature protection