Veterinary B-ultrasound Equipment

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Design of variable gain amplifier for animal B ultrasound system

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Update time : 2024-09-02 16:12:44

The design of variable gain amplifier for veterinary B-ultrasound system is used in many veterinary B-ultrasound receivers to control the input power of the received signal. In the frequency band from baseband to 2GHz, there is usually a trade-off between the performance of veterinary B-ultrasound systems and their degree of integration. In order to get the best performance at a given DC power, it is usually necessary to integrate some relatively bulky components into the system. The monolithic integrated circuit of veterinary B-ultrasound system can provide a simple solution, but the cost is high power and low performance. By using PIN tube as variable impedance, wide gain control can be conveniently achieved on a circuit board, and its power consumption is small. This makes it commercially promising.

Design of variable gain amplifier for animal B ultrasound system(图1)

Imported animal B ultrasound

PIN tubes in veterinary B-ultrasound systems can provide new layout techniques for analog and digital circuit design, which can save space, reduce power consumption and precise self-bias capabilities. These technologies inherently have low noise and high frequency characteristics at high input impedance, which is extremely important for feedback design. The variable gain amplifier implemented by these techniques in the amplifier stage can obtain the highest gain under the condition of low noise. Variable gain control can be achieved by using PIN tube as variable feedback impedance. In addition, the inductor feedback technology in the veterinary B-ultrasound system can improve the bandwidth response without reducing the noise performance of the variable gain control circuit. All of these functions can be integrated into a single veterinary B-ultrasound board and do not require too many external components.



link: https://www.bxlimage.com/nw/235.html

tags: animal B ultrasound B ultrasound
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