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相关概念视频

Design Example: Vintage Mixing Console01:17

Design Example: Vintage Mixing Console

252
A sound engineer at a music company recently encountered a problem. The output from their newly acquired studio's vintage mixing console was too low for the requirements of modern recording equipment. To rectify this situation, the engineer decided to design an audio pre-amplifier using an operational amplifier (op-amp) to boost the signal level.
The specifications for the pre-amplifier were clear. It needed to amplify the audio signal by a factor of 10, have an input impedance above 10...
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Cascaded Op Amps01:16

Cascaded Op Amps

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Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
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MOSFET Amplifiers01:17

MOSFET Amplifiers

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The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
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Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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Design Example01:23

Design Example

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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
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功率放大器设计用于超声波应用.

Hojong Choi1

  • 1Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam 13120, Republic of Korea.

Micromachines
|July 29, 2023
PubMed
概括

本研究分析了用于超声系统的功率放大器设计. 适当的功率放大器选择和设计对于最佳的传感器性能和先进的超声波技术至关重要.

科学领域:

  • 电气工程 电气工程
  • 生物医学工程 生物医学工程
  • 声学 声学 在声学方面

背景情况:

  • 功率放大器是超声系统中的关键电子元件.
  • 它们对于通过传感器生成声信号至关重要.
  • 最佳功率放大器设计直接影响传感器性能.

研究的目的:

  • 进行超声波应用功率放大器的设计分析.
  • 为了强调功率放大器选择对于传感器最佳性能的重要性.
  • 引导工程师和研究人员开发和利用功率放大器在新的超声波趋势.

主要方法:

  • 对功率放大器设计参数的审查.
  • 分析不同功率放大器的特定应用和局限性.
  • 检查超声波系统发展的趋势.

主要成果:

  • 确定了关键设计参数:增益,带宽,波扭曲和效率.
  • 他强调,不同的功率放大器适合特定的超声波应用.
  • 突出了集成和无线超声系统性能改进的潜力.

结论:

关键词:
功率放大器 的功率放大器.超声波系统超声波系统超声波传感器 超声波传感器

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  • 对于优化超声系统性能,需要对功率放大器进行彻底的设计分析.
  • 适当的功率放大器选择对于当前和新兴的超声波应用至关重要.
  • 本综述是超声波功率放大领域的工程师和研究人员的指南.