The is a common circuit board (PCB) used primarily as a control and display motherboard for induction cookers, most notably found in Philips models like the HD4931 and HD4932 . It serves as the "brain" of the appliance, managing power delivery, user inputs from the touch panel, and safety protocols. Circuit Overview and Key Blocks
The high AC voltage is stepped down to a lower DC voltage (typically 12V for relays and 5V for logic) using either a traditional transformer or a Switched-Mode Power Supply (SMPS) circuit. chk-v9.04g circuit diagram
: Converts 220V AC input into high-voltage DC (around +310V) via a bridge rectifier and a large filter capacitor. It also includes a step-down Switch Mode Power Supply (SMPS) that provides +18V for the cooling fan and IGBT driver, and +5V for the microcontroller. The is a common circuit board (PCB) used
If this value drifts, the IGBT will overheat and fail quickly. : Converts 220V AC input into high-voltage DC
The is a specific control board (PCB) commonly found in induction cookers , particularly those manufactured by Philips . Based on its design for high-power heating appliances, its primary features focus on power management, safety, and user interface control. Key Features of the CHK-V9.04G Circuit:
A highly powerful Insulated-Gate Bipolar Transistor (IGBT) acts as the high-speed switch. Controlled by the microchip via driver transistors, it rapidly pulses power into the LC tank at frequencies typically between to generate the cooking magnetic field.
In the software, you must select the hardware interface as "JDM Programmer" or "JDM - COM API" .