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Microwave magnetron single power source for medical purpose

A magnetron and power supply technology, which is applied to electrical components, output power conversion devices, and AC power input to DC power output, etc. It can solve the problem of patient burns, output power changes, and affect the stability of magnetron operation and service life. and other problems, to achieve the effect of reducing manufacturing cost and stable and reliable performance

Inactive Publication Date: 2004-12-29
潘慧泉
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a single power supply is simply used, the filament power supply voltage will also be changed when the power is adjusted to change the high voltage, so that the magnetron cannot work normally and directly affects the working stability and service life of the magnetron, which is not allowed
[0004] At present, there are two factors that restrict microwave therapy machines from entering the family. One is that due to the nonlinearity of the external characteristics of microwave magnetrons (that is, the relationship between output power and input voltage), a small change in input voltage will make the output power Very large changes may occur, which may cause burns on the patient's treatment site. Therefore, the microwave treatment machine in public use can only be used in hospitals under the guidance of doctors; another factor is that the cost of the microwave treatment machine is relatively high, and it is difficult for patients to buy and sell.

Method used

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  • Microwave magnetron single power source for medical purpose
  • Microwave magnetron single power source for medical purpose

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Embodiment Construction

[0012] The single power supply for medical microwave magnetron of the present invention will be described in detail below in conjunction with specific embodiments.

[0013] The medical microwave magnetron single power supply of the present invention is composed of a bridge rectifier circuit and a transformer provided with a primary winding and a high-voltage secondary winding, and the transformer is also provided with a low-voltage secondary winding that provides voltage for the filament of the magnetron. .

[0014] As an improvement of the above technical solution, a constant current source control circuit is also provided at the output end of the rectification circuit, such as figure 1 As shown, the medical microwave magnetron single power supply includes a bridge rectifier circuit and a transformer with a primary winding and a high-voltage secondary winding. side winding. The transformer voltage transforms the 220 volt mains voltage, and generates a low voltage of 3.2 vol...

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Abstract

The present invention discloses a microwave magnetron single power supply for medical use, which comprises a bridge rectification circuit and a transformer equipped with a primary winding a high voltage secondary winding, and a low-voltage secondary winding for providing voltage for magnetron filament, as an improvement, the output end of the rectification circuit is also provided with a constant-current source control circuit.

Description

technical field [0001] The invention relates to a power supply of a medical microwave magnetron, which is suitable for a microwave treatment machine and provides stable and reliable working voltage for it. Background technique [0002] Before 1986, almost all medical microwave therapy machines used in my country were imported from abroad. At that time, the most prominent clinical problem was the pollution of microwave to the environment. Microwave clinical treatment could only be carried out in shielded rooms of big hospitals in big cities. Invention patents ZL90106763.6, ZL90106764.4, ZL90104294.3, and ZL90104295.1 have improved the above problems and realized high-efficiency local radiation of microwaves, so that microwave clinical treatment can be carried out outside the shielded room of the hospital. In recent years, because microwave therapy has entered the outpatient wards of various clinical disciplines and achieved good clinical curati...

Claims

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Application Information

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IPC IPC(8): H02M7/162
Inventor 潘慧泉
Owner 潘慧泉
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