Dynamic-Gate Current Pulse Circuits for Ultrasound Transducers
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Solution Overview
Problem
Existing pulse circuits for ultrasound transducers suffer from high power dissipation, increased chip area, and sensitivity to electrostatic discharge due to the use of static voltage reference and level shifter circuits, which also contribute to circuit complexity.
Innovation Solution
A pulse circuit design that utilizes dynamic current generation at the transistor gate, eliminating static voltage reference and level shifter circuits, and employs a dynamic switching mechanism to drive the ultrasound transducer, reducing power dissipation and mitigating electrostatic discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static voltage reference and level shifter circuits are used in the pulse circuit, then the ultrasound transducer can be driven reliably, but power dissipation increases and chip area expands
Solution Approach 1:
The patent removes the static voltage reference circuit and static level shifter circuit from the pulse circuit design. By extracting these power-consuming components and replacing them with a dynamic switching mechanism controlled by logical control pulses, the design achieves transducer driving reliability without the associated power dissipation and chip area overhead.
2Reliability
If static voltage reference and level shifter circuits are used in the pulse circuit, then the ultrasound transducer can be driven reliably, but circuit complexity increases
Solution Approach 1:
The patent extracts and removes the complex static voltage reference circuit and static level shifter circuit from the design. The simplified dynamic switching mechanism using logical control pulses achieves the same transducer driving function with significantly reduced circuit complexity.
3Stability of the object's composition
If static voltage reference circuits are used in the pulse circuit, then voltage stability is maintained, but sensitivity to electrostatic discharge increases
Solution Approach 1:
The patent transitions from a static voltage reference circuit to a dynamic switching mechanism. The pulse circuit responds dynamically to logical control pulses, switching the ultrasound transducer between voltage states as needed. This dynamic approach maintains voltage stability during operation while avoiding the electrostatic discharge sensitivity inherent in static reference circuits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed design reduces power dissipation, mitigates electrostatic discharge, and simplifies circuit complexity by using dynamic current to drive the ultrasound transducer, thereby enhancing energy efficiency and reliability.
Implementation Method 1
electromechanical elements capable of converting electrical energy into mechanical energy for transmission of ultrasonic waves
Implementation Method 2
mechanical energy back into electrical energy when the reflected ultrasonic waves reach the transducers
Data Source
AI summary
Various methods and systems are provided for a pulse circuit of a transmitter of an ultrasound system. In one example, the system may include a pulse circuit with transistors driving an ultrasound transducer of the ultrasound system, whereby the switching on and off of the transistors is mediated via one or more dynamic currents flowing from the gates of one or more of the transistors.