The power chip SM7028 used by the United States new ultra-thin induction cooker is a new power supply, the chip is currently broken and has not been directly replaced by other models, after comparison, it is found that VIPer12A can be indirectly replaced by changing foot flying line method. First, we directly connect the 4 pins of VIPer12A's 5,6,7,8 to the 4 pins of chip SM7028. Connect pin 1 and pin 2 of the VIPer12A to pin 5678 of the SM7028 (ground), pin 4 (VDD) of the VIPer12A directly to pin 2 (VDD) of the SM7028 chip, pin 3 (FB) of the VIPer12A to pin 1 of the SM7028. That's what they said! Try it!