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

A power adjustment and power supply device technology, which is applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve problems such as poor image output effect and unfixed frequency of switching power supply, achieve constant power, save power resources, and power supply The effect of switching frequency stabilization

Active Publication Date: 2020-02-14
VINNO TECH (SUZHOU) CO LTD
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  • 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 Doppler ultrasound equipment
  • Power adjustment device, power supply device and color Doppler 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 invention relates to a power adjustment device, a power supply device and color Doppler ultrasound equipment, and belongs to the technical field of color Doppler ultrasound equipment. The power adjustment device comprises a digital-analog converter, a power supply output end, a first amplifier and a constant-power load; the input end of the digital-analog converter is connected with a switching power supply; the power supply output end is used for being connected with the load; and the first amplifier and the constant-power load are connected between the output end of the digital-analog converter and the power supply output end in parallel. The power of the constant-power load does not change along with the change of the output voltage of the digital-analog converter, so that the problem that the image output effect is bad as the frequency of the switching power supply is not fixed when the color Doppler ultrasound equipment use the existing power supply devices for power supply can be solved, and the image noises caused by the non-fixed switching frequency of the power supply of the color Doppler ultrasound equipment can be eliminated; and meanwhile, the power of the constant-power load does not change along with the change of the output voltage of the switching power supply, so that the consumption of the load when the output voltage of the switching power supply is relatively high can be reduced so as to save the electric 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 Applications(China)
IPC IPC(8): G05F1/66
CPCG05F1/66
Inventor 周泉
Owner VINNO TECH (SUZHOU) CO LTD
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