18058584. SELF-BIAS SIGNAL GENERATING CIRCUIT USING DIFFERENTIAL SIGNAL AND RECEIVER INCLUDING THE SAME simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
Contents
SELF-BIAS SIGNAL GENERATING CIRCUIT USING DIFFERENTIAL SIGNAL AND RECEIVER INCLUDING THE SAME
Organization Name
Inventor(s)
Kyunghwan Min of Hwaseong-si (KR)
Soomin Lee of Hwaseong-si (KR)
SELF-BIAS SIGNAL GENERATING CIRCUIT USING DIFFERENTIAL SIGNAL AND RECEIVER INCLUDING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18058584 titled 'SELF-BIAS SIGNAL GENERATING CIRCUIT USING DIFFERENTIAL SIGNAL AND RECEIVER INCLUDING THE SAME
Simplified Explanation
The abstract describes a self-bias signal generating circuit that includes a differential amplifier circuit and a feedback loop circuit. The differential amplifier circuit amplifies differential input signals and generates differential output signals, as well as an output common-mode signal. The feedback loop circuit adjusts the voltage level of the output common-mode signal to generate a self-bias signal, which is then applied to a gate terminal of a current source transistor.
- The self-bias signal generating circuit includes a differential amplifier circuit with a current source transistor.
- The differential amplifier circuit amplifies differential input signals and generates differential output signals.
- The differential amplifier circuit also generates an output common-mode signal based on the differential output signals.
- The self-bias signal generating circuit includes a feedback loop circuit that adjusts the voltage level of the output common-mode signal.
- The feedback loop circuit generates a self-bias signal and provides it to the differential amplifier circuit.
- The self-bias signal is applied to the gate terminal of the current source transistor.
Potential Applications
- This technology can be applied in audio amplifiers, where self-biasing can help improve the performance and stability of the amplifier circuit.
- It can also be used in communication systems, such as transmitters and receivers, to ensure accurate signal amplification and reception.
- The self-bias signal generating circuit can be utilized in sensor circuits, where precise amplification and biasing are crucial for accurate measurement.
Problems Solved
- The self-bias signal generating circuit solves the problem of maintaining a stable bias voltage for the current source transistor in the differential amplifier circuit.
- It addresses the issue of common-mode voltage variations that can affect the performance and accuracy of the amplifier circuit.
- The feedback loop circuit ensures that the output common-mode signal is adjusted to generate a self-bias signal, providing a stable operating point for the amplifier.
Benefits
- The self-bias signal generating circuit improves the stability and performance of the differential amplifier circuit.
- It allows for accurate amplification of differential input signals while maintaining a stable bias voltage for the current source transistor.
- The feedback loop circuit ensures that the self-bias signal is continuously adjusted, providing a reliable and consistent operating point for the amplifier.
Original Abstract Submitted
A self-bias signal generating circuit includes a differential amplifier circuit including a current source transistor. The differential amplifier circuit is configured to amplify at least a pair of differential input signals to generate at least a pair of differential output signals, and the differential amplifier circuit is configured to generate an output common-mode signal based on the at least a pair of differential output signals. The self-bias signal generating circuit includes a feedback loop circuit configured to adjust a voltage level of the output common-mode signal to generate a self-bias signal, and the feedback loop circuit is configured to provide the self-bias signal to the differential amplifier circuit. The self-bias signal is applied to a gate terminal of the current source transistor.
