18591467. SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER simplified abstract (ROHM CO., LTD.)
Contents
SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER
Organization Name
Inventor(s)
Haruaki Nakamura of Kyoto-shi (JP)
SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18591467 titled 'SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER
Simplified Explanation: The patent application describes a capacitive array D/A converter that samples an input voltage and outputs a signal corresponding to the input voltage and a threshold voltage based on control data. A comparison circuit processes the output of the converter using a comparison clock, while a clock generating circuit produces a successive approximation clock. A logic circuit supplies the comparison clock to the comparison circuit based on the successive approximation clock. The logic circuit detects abnormal states based on the number of cycles of the clocks during A/D conversion.
Key Features and Innovation:
- Capacitive array D/A converter for accurate voltage conversion
- Comparison circuit for processing output signals
- Clock generating circuit for generating successive approximation clock
- Logic circuit for detecting abnormal states during conversion
Potential Applications: The technology can be used in various applications requiring precise voltage conversion, such as in instrumentation, communication systems, and sensor devices.
Problems Solved: The technology addresses the need for accurate and reliable voltage conversion in electronic systems, ensuring proper functioning and performance.
Benefits:
- Accurate voltage conversion
- Reliable operation
- Detection of abnormal states during conversion process
Commercial Applications: Title: "Advanced Capacitive Array D/A Converter for Precision Voltage Conversion" This technology can be commercially applied in industries such as telecommunications, automotive, and medical devices where precise voltage conversion is crucial for optimal performance.
Prior Art: Readers can explore prior patents related to capacitive D/A converters, comparison circuits, clock generating circuits, and logic circuits to understand the evolution of this technology.
Frequently Updated Research: Researchers may be conducting studies on improving the efficiency and speed of capacitive array D/A converters, as well as exploring new applications for this technology.
Questions about Capacitive Array D/A Converter: 1. How does the comparison circuit contribute to the accuracy of voltage conversion? 2. What are the potential challenges in implementing this technology in different electronic systems?
Original Abstract Submitted
A capacitive array D/A converter samples an input voltage, and outputs a signal that corresponds to the input voltage IN and a threshold voltage based on control data. A comparison circuit receives an output of the capacitive D/A converter and performs comparison processing according to a comparison clock. A clock generating circuit generates a successive approximation clock. A logic circuit supplies the comparison clock to the comparison circuit based on the successive approximation clock. When a predetermined second number of cycles of the successive approximation clock are detected before a predetermined number of cycles of an external clock are detected from the start of A/D conversion, the logic circuit judges that operation is normal. Otherwise, the logic circuit judges that an abnormal state has occurred.
