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公开(公告)号:US20250158629A1
公开(公告)日:2025-05-15
申请号:US18440552
申请日:2024-02-13
Applicant: Microchip Technology Incorporated
Inventor: Thomas Youbok Lee , Ibiyemi Omole , Jimmy Yu , Santosh Patel , Daniel Meacham , Hadj Attlassy
IPC: H03M1/12
Abstract: An ADC system may include an ADC, a comparator, a voltage source, a comparator output polarity control circuit and a comparator output counter. An analog input signal may be input to a first input of the comparator, and an output of the voltage source may be input to a second input of the comparator. The comparator may generate an output to the comparator output polarity control circuit, and the comparator output counter may count clock cycles while the comparator output is asserted and may assert a monitor output based on the comparator output counter value. The monitor output may be an interrupt, an alarm or other system alerts and may control system operation.
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公开(公告)号:US11853096B2
公开(公告)日:2023-12-26
申请号:US17681021
申请日:2022-02-25
Applicant: Microchip Technology Incorporated
Inventor: Michael Harris , Daniel Meacham
Abstract: A curvature compensated bandgap circuit that is capable of matching best-in-class two (2) parts-per-million performance without over-temperature trimming. This improves performance metrics for precision voltage reference products without requiring individual device tuning during production thereof. A core bandgap circuit comprises a main operational amplifier having a second order bowed voltage response over temperature. A ptat circuit is coupled to the core bandgap circuit to provide a sigmoidal third order shape for the bandgap voltage.
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公开(公告)号:US20240257845A1
公开(公告)日:2024-08-01
申请号:US18381776
申请日:2023-10-19
Applicant: Microchip Technology Incorporated
Inventor: Ali Harb , Daniel Meacham , Anthony Andresen , Mitch Polonsky
IPC: G11C7/10 , G11C7/22 , H03K19/017
CPC classification number: G11C7/1063 , G11C7/222 , H03K19/01742
Abstract: In an I2C communication system, dedicated address pins may enable a primary device to separately address multiple secondary devices. Upon a first transmission from the primary device, the logic level on each dedicated address pin may be saved in each secondary device. The address decoder circuit within each secondary device may use the saved address pin value for decoding transmissions from the primary device. The dedicated address pin may then be re-used for a separate function, as the logic level on the address pin has been saved.
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公开(公告)号:US20240079955A1
公开(公告)日:2024-03-07
申请号:US18241551
申请日:2023-09-01
Applicant: Microchip Technology Incorporated
Inventor: Ajay Kumar , Paul Walker , Ibiyemi Omole , Daniel Meacham , Arvind Madan , Santosh Patel
Abstract: A switched-capacitor DC-DC converter circuit may convert an input voltage into a desired output voltage level. A comparator may compare a desired voltage level to a divided version of the output voltage. A fully digital control circuit comprising a frequency divider circuit, a counter circuit, a digital control logic circuit and a gain selection circuit may generate a gain value, and a phase generator may convert the gain value into clock phase signals and control settings to control a switch array to select capacitors to produce a desired output voltage.
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公开(公告)号:US20230161369A1
公开(公告)日:2023-05-25
申请号:US17681021
申请日:2022-02-25
Applicant: Microchip Technology Incorporated
Inventor: Michael Harris , Daniel Meacham
Abstract: A curvature compensated bandgap circuit that is capable of matching best-in-class two (2) parts-per-million performance without over-temperature trimming. This improves performance metrics for precision voltage reference products without requiring individual device tuning during production thereof. A core bandgap circuit comprises a main operational amplifier having a second order bowed voltage response over temperature. A ptat circuit is coupled to the core bandgap circuit to provide a sigmoidal third order shape for the bandgap voltage.
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