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Power adjustment device, power supply device and color ultrasound equipment

A power adjustment and power supply device technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve the problems of switching power supply frequency not fixed, poor image output, etc., to save power resources and eliminate image noise , The effect of power switching frequency stability

Active Publication Date: 2021-05-14
VINNO TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The application provides a power adjustment device, a power supply device and color ultrasound equipment, which can solve the problem that the frequency of the switching power supply is not fixed when the color ultrasound equipment uses the existing power supply device to supply power, which will lead to poor image output.

Method used

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  • Power adjustment device, power supply device and color ultrasound equipment
  • Power adjustment device, power supply device and color ultrasound equipment

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Embodiment Construction

[0023] The specific implementation manners of the present application will be further described in detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0024] figure 1 It is a schematic structural diagram of a switching power supply 1 provided by an embodiment of the present application, such as figure 1 As shown, the switching power supply 1 at least includes: an AC oscillating circuit 11 connected to the voltage input terminal of the switching power supply 1, a rectifying circuit 12 connected to the AC oscillating circuit 11, a voltage sampling circuit 13 connected to the output terminal of the rectifying circuit 12, And the switching power supply chip 14 connected with the voltage sampling circuit 13.

[0025] The switching frequency of the switching power supply 1 is positively correlated with the load of the switching power supply 1 ....

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Abstract

The application relates to a power adjustment device, a power supply device and color ultrasound equipment, which belong to the technical field of color ultrasound equipment. The power adjustment device includes: a digital-to-analog converter whose input end is connected to a switching power supply, a power supply output end used to connect to a load, and The first amplifier and the constant power load connected in parallel between the output terminal of the digital-to-analog converter and the output terminal of the power supply; the power consumption of the constant power load does not change with the output voltage of the digital-to-analog converter; it can be used in color ultrasound equipment When the existing power supply device supplies power, the frequency of the switching power supply is not fixed, which leads to the problem of poor image output; it can eliminate the noise of the image caused by the unfixed switching frequency of the color ultrasound equipment; at the same time, the power of the constant power load will not change with the switching frequency. The change of the output voltage of the power supply can reduce the consumption of the load when the output voltage of the switching power supply is high, and save power resources.

Description

technical field [0001] The application relates to a power adjustment device, a power supply device and color ultrasound equipment, belonging to the technical field of color ultrasound equipment. Background technique [0002] Color Doppler ultrasound equipment refers to the equipment used for ultrasound imaging, measurement and blood flow movement information collection for clinical ultrasound diagnostic examination. The color ultrasound equipment supplies power to the load in the equipment through the power supply device. [0003] A typical power supply device usually includes a switching power supply. In the low-power transmission mode, the switching power supply will automatically reduce the switching frequency due to the small load to achieve a balance between power supply and load energy consumption. Since the frequency of the switching power supply is not fixed at this time, it is easy to cause image noise in the color mode at this time, resulting in poor image output...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/66
CPCG05F1/66
Inventor 周泉
Owner VINNO TECH (SUZHOU) CO LTD
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