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公开(公告)号：US20230353091A1
公开(公告)日：2023-11-02
申请号：US18177533
申请日：2023-03-02
Inventor： Simone Spataro , Salvatore Coffa , Egidio Ragonese
IPC: H03B5/12 , H03K3/011 , H03K3/0231
CPC classification number: H03B5/1228 , H03K3/011 , H03K3/0231 , H03B5/1253 , H03B2200/0062
Abstract: An oscillator circuit includes a total of N (N≥2) class-D oscillator circuits stacked together between a supply voltage node and a reference voltage node. The output ports of adjacent class-D oscillator circuits in the disclosed oscillator circuit are coupled together by capacitors to ensure frequency and phase synchronization for the frequency signals generated by the class-D oscillator circuits. Compared with a reference oscillator circuit formed of a single class-D oscillator circuit, the oscillation amplitude of each of the class-D oscillator circuits in the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit, and the current consumption of the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit.
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公开(公告)号：US20240272088A1
公开(公告)日：2024-08-15
申请号：US18168017
申请日：2023-02-13
Applicant: STMicroelectronics S.r.l.
Inventor： Michele Calabretta , Francesco Rundo , Salvatore Coffa , Marco Alfio Torrisi , Riccardo Emanuele Sarpietro
CPC classification number: G01N21/9501 , G06T7/0004 , G06T2207/20081 , G06T2207/20084 , G06T2207/30148
Abstract: In an embodiment, a method includes: capturing a first image of a power module, the power module including a power electronics circuit, the power electronics circuit including power semiconductor dies; identifying positions of the power semiconductor dies in the first image with a die detection model; extracting second images of the power semiconductor dies from the first image according to the positions of the power semiconductor dies in the first image; and identifying defects of the power semiconductor dies in the second images with a defect detection model, the defect detection model being different from the die detection model.
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公开(公告)号：US11901863B2
公开(公告)日：2024-02-13
申请号：US18177533
申请日：2023-03-02
Inventor： Simone Spataro , Salvatore Coffa , Egidio Ragonese
IPC: H03B5/12 , H03K3/011 , H03K3/0231
CPC classification number: H03B5/1228 , H03B5/1253 , H03K3/011 , H03K3/0231 , H03B2200/0062
Abstract: An oscillator circuit includes a total of N (N≥2) class-D oscillator circuits stacked together between a supply voltage node and a reference voltage node. The output ports of adjacent class-D oscillator circuits in the disclosed oscillator circuit are coupled together by capacitors to ensure frequency and phase synchronization for the frequency signals generated by the class-D oscillator circuits. Compared with a reference oscillator circuit formed of a single class-D oscillator circuit, the oscillation amplitude of each of the class-D oscillator circuits in the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit, and the current consumption of the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit.
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公开(公告)号：US11621670B1
公开(公告)日：2023-04-04
申请号：US17732026
申请日：2022-04-28
Inventor： Simone Spataro , Salvatore Coffa , Egidio Ragonese
IPC: H03B5/12 , H03K3/0231 , H03K3/011
Abstract: An oscillator circuit includes a total of N (N≥2) class-D oscillator circuits stacked together between a supply voltage node and a reference voltage node. The output ports of adjacent class-D oscillator circuits in the disclosed oscillator circuit are coupled together by capacitors to ensure frequency and phase synchronization for the frequency signals generated by the class-D oscillator circuits. Compared with a reference oscillator circuit formed of a single class-D oscillator circuit, the oscillation amplitude of each of the class-D oscillator circuits in the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit, and the current consumption of the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit.
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