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1.发明公开
公开(公告)号：EP4429118A1
公开(公告)日：2024-09-11
申请号：EP24159995.0
申请日：2024-02-27
发明人： Ragab, Kareem , Lin, Xiaofeng , Cheung, Darwin , Mo, Chi , Chandrasekhar, Vinay , Song, Jungwoo , Jiang, Xicheng
CPC分类号： H03M1/468 , H03M1/0854 , H03M1/687 , H03M1/804 , H03M1/066 , H03M1/0673 , H03M3/39 , H03M3/338 , H03M3/35 , H03M1/0678
摘要： A device (e.g., SAR ADC device) include a DAC circuit and generates a digital output based on logic circuitry that includes SAR logic. Additional logic circuitry includes delta modulation circuitry and dynamic element matching circuitry. The delta modulation circuitry provides several digital outputs of the SAR DAC, while the dynamic element matching circuitry selects a different set of capacitors from the DAC circuit. Each cycle is added together and averaged, and then added to the digital output from the SAR logic.
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公开(公告)号：EP4422072A2
公开(公告)日：2024-08-28
申请号：EP24154628.2
申请日：2024-01-30
发明人： Lu, Junjie , Duan, Jingbo , Guo, Jing , Gan, Jianhua , Song, Jungwoo , Jiang, Xicheng
CPC分类号： H03K4/08 , H03K2005/0001320130101 , H03K5/12 , H03K7/08
摘要： An apparatus includes a digital ramp generator comprising a delay line, the delay line comprising one or more delay elements and an oscillator, wherein the digital ramp generator is configured to generate a code based on respective outputs of the one or more delay elements, a digital to analog converter coupled to the digital ramp generator, wherein the digital to analog converter is configured to generate a reference signal, wherein the reference signal is generated based, at least in part, on the code, and a driver coupled to the digital to analog converter, the driver configured to generate a drive current based, at least in part, on the reference signal.
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公开(公告)号：EP2882084B1
公开(公告)日：2019-02-27
申请号：EP14004098.1
申请日：2014-12-04
发明人： Ku, I-Ning , Zheng, Hui , Song, Jungwoo , Jiang, Xicheng
IPC分类号： H02M3/07
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公开(公告)号：EP4425132A3
公开(公告)日：2024-11-06
申请号：EP24159841.6
申请日：2024-02-27
发明人： Ragab, Kareem , Lin, Xiaofeng , Cheung, Darwin , Mo, Chi , Chandrasekhar, Vinay , Song, Jungwoo , Jiang, Xicheng
IPC分类号： G01K7/24
摘要： An apparatus includes a switched-capacitor resistor that provides an equivalent resistance that can be used as a reference resistor. The switched-capacitor resistor includes a capacitor and a pair of switches that alternately switch (e.g., open and close) in order to charge and discharge the capacitor. The switching frequency of the switches can be controlled by a clock phase generator that generates non-overlapping pulses. To further control the frequency, a frequency locked loop circuit can also be used.
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公开(公告)号：EP4425133A2
公开(公告)日：2024-09-04
申请号：EP24159848.1
申请日：2024-02-27
发明人： Ragab, Kareem , Lin, Xiaofeng , Cheung, Darwin , Mo, Chi , Chandrasekhar, Vinay , Song, Jungwoo , Jiang, Xicheng
IPC分类号： G01K7/24
CPC分类号： G01K7/24 , G01K2219/0020130101 , G01K2215/0020130101 , G01K2211/0020130101
摘要： An apparatus includes a temperature sensing circuit that includes both on-chip and off-chip components. The apparatus includes components that use the same source as a reference voltage, thus allowing variations in the reference voltage to be compensated for. Additionally, the apparatus can provide error averaging to compensate for deterministic error sources.
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公开(公告)号：EP4425132A2
公开(公告)日：2024-09-04
申请号：EP24159841.6
申请日：2024-02-27
发明人： Ragab, Kareem , Lin, Xiaofeng , Cheung, Darwin , Mo, Chi , Chandrasekhar, Vinay , Song, Jungwoo , Jiang, Xicheng
IPC分类号： G01K7/24
CPC分类号： G01K2211/0020130101 , H01L29/66825 , G01K2219/0020130101 , G01K7/24
摘要： An apparatus includes a switched-capacitor resistor that provides an equivalent resistance that can be used as a reference resistor. The switched-capacitor resistor includes a capacitor and a pair of switches that alternately switch (e.g., open and close) in order to charge and discharge the capacitor. The switching frequency of the switches can be controlled by a clock phase generator that generates non-overlapping pulses. To further control the frequency, a frequency locked loop circuit can also be used.
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公开(公告)号：EP4425133A3
公开(公告)日：2024-11-06
申请号：EP24159848.1
申请日：2024-02-27
发明人： Ragab, Kareem , Lin, Xiaofeng , Cheung, Darwin , Mo, Chi , Chandrasekhar, Vinay , Song, Jungwoo , Jiang, Xicheng
IPC分类号： G01K7/24
摘要： An apparatus includes a temperature sensing circuit that includes both on-chip and off-chip components. The apparatus includes components that use the same source as a reference voltage, thus allowing variations in the reference voltage to be compensated for. Additionally, the apparatus can provide error averaging to compensate for deterministic error sources.
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公开(公告)号：EP4422072A3
公开(公告)日：2024-10-23
申请号：EP24154628.2
申请日：2024-01-30
发明人： Lu, Junjie , Duan, Jingbo , Guo, Jing , Gan, Jianhua , Song, Jungwoo , Jiang, Xicheng
摘要： An apparatus includes a digital ramp generator comprising a delay line, the delay line comprising one or more delay elements and an oscillator, wherein the digital ramp generator is configured to generate a code based on respective outputs of the one or more delay elements, a digital to analog converter coupled to the digital ramp generator, wherein the digital to analog converter is configured to generate a reference signal, wherein the reference signal is generated based, at least in part, on the code, and a driver coupled to the digital to analog converter, the driver configured to generate a drive current based, at least in part, on the reference signal.
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