摘要:
A magnetic field measuring system is disclosed. The magnetic field measuring system includes a substrate, a conductive well formed in the substrate, the well having a first side with a first length, a first contact electrically coupled to the conductive well at a first location of the first side, a second contact electrically coupled to the conductive well at a second location of the first side, wherein the distance between the first location and the second location is less than the first length, a stimulus circuit coupled to the first contact and the second contact, and a sensor for identifying a property indicative of the length of a current path from the first location to the second location through the conductive well.
摘要:
A magnetic field measuring system is disclosed. The magnetic field measuring system includes a substrate, a conductive well formed in the substrate, the well having a first side with a first length, a first contact electrically coupled to the conductive well at a first location of the first side, a second contact electrically coupled to the conductive well at a second location of the first side, wherein the distance between the first location and the second location is less than the first length, a stimulus circuit coupled to the first contact and the second contact, and a sensor for identifying a property indicative of the length of a current path from the first location to the second location through the conductive well.
摘要:
A method and system for providing increased accuracy in a CMOS sensor system in one embodiment includes a plurality of sensor elements having a first terminal and a second terminal on a complementary metal oxide semiconductor substrate, a first plurality of switches configured to selectively connect the first terminal to a power source and to selectively connect the first terminal to a readout circuit, and a second plurality of switches configured to selectively connect the second terminal to the power source and to selectively connect the second terminal to the readout circuit.
摘要:
A method and system for providing increased accuracy in a CMOS sensor system in one embodiment includes a plurality of sensor elements having a first terminal and a second terminal on a complementary metal oxide semiconductor substrate, a first plurality of switches configured to selectively connect the first terminal to a power source and to selectively connect the first terminal to a readout circuit, and a second plurality of switches configured to selectively connect the second terminal to the power source and to selectively connect the second terminal to the readout circuit.
摘要:
A method compensates for errors in an output signal of a comparator based/zero crossing based circuit. The method includes generating with a comparator based/zero crossing based switched capacitor circuit a first output signal with an input signal, generating with the comparator based/zero crossing based switched capacitor circuit a second output signal with the input signal of an opposite polarity, and subtracting the second output signal from the first output signal to generate a final output signal for the comparator based/zero crossing based switched capacitor circuit.
摘要:
A method compensates for errors in an output signal of a comparator based/zero crossing based circuit. The method includes generating with a comparator based/zero crossing based switched capacitor circuit a first output signal with an input signal, generating with the comparator based/zero crossing based switched capacitor circuit a second output signal with the input signal of an opposite polarity, and subtracting the second output signal from the first output signal to generate a final output signal for the comparator based/zero crossing based switched capacitor circuit.
摘要:
A complimentary metal oxide semiconductor (CMOS) sensor system in one embodiment includes a doped substrate, a doped central island extending downwardly within the doped substrate from an upper surface of the doped substrate, and a first doped outer island extending downwardly within the doped substrate from the upper surface of the doped substrate, the first outer island electrically isolated from the central island within an upper portion of the substrate, and electrically coupled to the central island within a lower portion of the substrate.
摘要:
A complimentary metal oxide semiconductor (CMOS) sensor system in one embodiment includes a doped well extending along a first axis of a doped substrate, a first electrical contact positioned within the doped well, a second electrical contact positioned within the doped well and spaced apart from the first electrical contact along the first axis, a third electrical contact positioned within the doped well and located between the first electrical contact and the second electrical contact along the first axis, and a fourth electrical contact electrically coupled to the doped well at a location of the doped well below the third electrical contact.
摘要:
A complimentary metal oxide semiconductor (CMOS) sensor system in one embodiment includes a doped well extending along a first axis of a doped substrate, a first electrical contact positioned within the doped well, a second electrical contact positioned within the doped well and spaced apart from the first electrical contact along the first axis, a third electrical contact positioned within the doped well and located between the first electrical contact and the second electrical contact along the first axis, and a fourth electrical contact electrically coupled to the doped well at a location of the doped well below the third electrical contact.
摘要:
A complementary metal oxide semiconductor (CMOS) sensor system in one embodiment includes a doped substrate, a doped central island extending downwardly within the doped substrate from an upper surface of the doped substrate, and a first doped outer island extending downwardly within the doped substrate from the upper surface of the doped substrate, the first outer island electrically isolated from the central island within an upper portion of the substrate, and electrically coupled to the central island within a lower portion of the substrate.