| 摘要 |
PCT No. PCT/FR92/00655 Sec. 371 Date Jan. 10, 1994 Sec. 102(e) Date Jan. 10, 1994 PCT Filed Jul. 8, 1992 PCT Pub. No. WO93/01654 PCT Pub. Date Jan. 21, 1993A device for detecting the malfunctioning of a magnetron which operates at start-up with a high power setting P0, and which is connected to the terminals (21, 22) of the secondary winding (19) of a high-voltage transformer (8). This device includes a device for measuring (28) the peak voltage value sampled in the supply circuit, a device for storing (29) the voltage value measured at successive instants, a device for comparing (30) two successive voltage values giving, in the event of a difference in value, an excess signal (a-b), and a device for detecting (31) the excess signal suitable for sending a malfunction signal to a counting device in order to determine the frequency of the malfunction.
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