Abstract: A system (10) applied in switch tube for suppressing conducted EMI and a domestic appliance are provided, and the system (10) includes a conduction EMI suppression circuit, an inductive load (1, 71, 81) and at least one switch tube (2, 72, 82). The conducted EMI suppression circuit includes one inductor (3, 73, 83, 123) and an RC circuit (4, 74, 84, 124). The inductor (3, 73, 83, 123) and each switch tube (2, 72, 82) are connected in series. The inductive load (1, 71, 82) and each switch tube (2, 72, 82) are connected. The inductor (3, 73, 83, 123) are connected in series with each switch tube (2, 72, 82), and further connected in parallel with the RC circuit (4. 74, 84, 124). The conduction EMI suppression circuit is configured to suppress conducted EMI generated by each switch tube (2, 72, 82) being turned off.

Abstract: A microwave oven includes a frequency converter, a magnetron, a first conductor, and a second conductor. A power supply end of the fre-quency converter is connected to a power supply end of the magnetron by means of the first conductor, and a ground end of the frequency converter is connected to a ground end of the magnetron by means of the second conductor. The first conductor and a part of the second conductor are arranged in parallel, and the distance between the first conductor and the part of the second conductor is less than a preset distance. In this way, RE of the microwave oven can be reduced, and the microwave oven can thus meet the EMC standards.

Abstract: A system (10) applied in switch tube for suppressing conducted EMI and a domestic appliance are provided, and the system (10) includes a conduction EMI suppression circuit, an inductive load (1, 71, 81) and at least one switch tube (2, 72, 82). The conducted EMI suppression circuit includes one inductor (3, 73, 83, 123) and an RC circuit (4, 74, 84, 124). The inductor (3, 73, 83, 123) and each switch tube (2, 72, 82) are connected in series. The inductive load (1, 71, 82) and each switch tube (2, 72, 82) are connected. The inductor (3, 73, 83, 123) are connected in series with each switch tube (2, 72, 82), and further connected in parallel with the RC circuit (4. 74, 84, 124). The conduction EMI suppression circuit is configured to suppress conducted EMI generated by each switch tube (2, 72, 82) being turned off.