18605449. CAPACITANCE CIRCUIT simplified abstract (Infineon Technologies AG)
Contents
CAPACITANCE CIRCUIT
Organization Name
Inventor(s)
Ionut-Alin Ilie of Bucharest (RO)
Cristian Stefan Zegheru of Bucharest (RO)
CAPACITANCE CIRCUIT - A simplified explanation of the abstract
This abstract first appeared for US patent application 18605449 titled 'CAPACITANCE CIRCUIT
The present disclosure introduces a capacitance circuit designed to increase capacitance between an input terminal and a reference voltage.
- The circuit includes a current source structure providing compensation current at the input terminal.
- It features a first transistor with a control terminal and load current, connected to the input terminal.
- A second transistor with a control terminal is included, along with a capacitance amplification circuit enhancing capacitance between control terminals.
- A capacitor with core capacitance is linked between the first control terminal and input terminal.
- The compensation current matches the load current during DC operation, contributing to the increased capacitance.
Potential Applications: - This technology can be utilized in sensor applications requiring increased capacitance for accurate readings. - It can be integrated into touchscreens to enhance touch sensitivity and responsiveness.
Problems Solved: - Addresses the need for higher capacitance in electronic circuits without significantly increasing physical size. - Improves the performance of devices that rely on capacitance for operation.
Benefits: - Enhanced sensitivity and accuracy in sensor applications. - Improved performance and user experience in touch-sensitive devices.
Commercial Applications: Title: Enhanced Capacitance Circuit for Sensor and Touchscreen Applications This technology can be commercialized in industries such as consumer electronics, automotive, and medical devices for improved functionality and performance.
Questions about Enhanced Capacitance Circuit: 1. How does the capacitance amplification factor contribute to the increased capacitance in the circuit? 2. What are the specific advantages of using this technology in touchscreens compared to traditional capacitance circuits?
Original Abstract Submitted
The present disclosure provides a capacitance circuit which has an input terminal and is configured to provide an increased capacitance between the input terminal and a first reference voltage. The capacitance circuit comprises a current source structure configured to provide a compensation current at the input terminal, a first transistor having a first control terminal and a first load current and being coupled to the input terminal, a second transistor having a second control terminal, a capacitance amplification circuit configured to provide a capacitance amplification factor and being coupled between the first control terminal and the second control terminal, and a capacitor having a core capacitance and being coupled between the first control terminal and the input terminal, wherein the compensation current corresponds to the first load current during direct current operation, and wherein the increased capacitance is based on the core capacitance and the capacitance amplification factor.
