CN202798459U - High efficiency and low loss high frequency power supply - Google Patents

Abstract

The utility model discloses a high efficiency and low loss high frequency power supply. An input signal reaches a field effect tube M1 through a resistor R1, a triode Q1, a triode Q2 and a resistor R111. A signal is output through a resistor R100. A voltage regulating tube D1 ensures that the field effect tube keeps working under a certain voltage. After the driving of a power amplifier tube, a large power tube works in a conduction area and a cutoff area, and then is connected with single chip microcomputer pins P1.0 to P1.5 of a control unit AT89S2051. The magnitude of output current is effectively controlled through the function of the single chip microcomputer to prevent a molybdenum wire from burnout due to large current and to reduce molybdenum wire loss. Software programming is carried out according to the above principle and debugging is carried out on a machine tool, and the effect is great. The normal processing efficiency can reach above 8000/h, and the maximum speed can reach 12000/h. The molybdenum wire loss is 1 time higher than before. The problems of low processing efficiency and large molybdenum wire loss of a high speed wire cutting high frequency power supply at the present are effectively solved. The loss of a company is reduced. The operation of high efficiency and high benefit of the company is ensured, thus the high efficiency and low loss high frequency power supply is effective.

Description

A kind of high efficiency low-loss high-frequency power supply

Technical field

The utility model belongs to power technique fields, relates in particular to a kind of high efficiency low-loss high-frequency power supply.

Background technology

At present high-speed wire linear cutting high frequency electric source is widely used in the various machinings, yet owing to reasons such as working (machining) efficiency are low, and the molybdenum filament loss is bigger than normal, has caused a lot of losses.

Summary of the invention

The purpose of the utility model embodiment is to provide a kind of high efficiency low-loss high-frequency power supply, being intended to solve present high-speed wire linear cutting high frequency electric source is widely used in the various machinings, yet because working (machining) efficiency is low, the reason such as the molybdenum filament loss is bigger than normal has caused the problem of a lot of losses.

The utility model embodiment is achieved in that a kind of high efficiency low-loss high-frequency power supply, it is characterized in that this power supply comprises:

Be used for unit under test is passed in input, drive unit under test and carry out, accept the unit under test execution result, and judge.Adopted the switching tube of middle power, used the output of pipe type of drive, guaranteed that high power valve can be operated in the driver element of opening district and cut-off region;

Be used for the workflow management of the program of being responsible for, the size of control output current prevents that molybdenum filament from blowing because electric current is excessive, also reduces the control unit of the loss of molybdenum filament.

Further, the concrete connection of described driver element is:

Collector electrode by NPN type triode triode Q1 meets DC power supply+12V, the emitter of triode Q1 connects the emitter of positive-negative-positive triode triode Q2, triode Q1 links to each other through the grid of resistance R 111 with field effect transistor M1 with the emitting stage of triode Q2, and triode Q1 links to each other with input signal through resistance R 1 with the base stage of triode Q2.The drain electrode of field effect transistor M1 meets DC power supply+100V through voltage-stabiliser tube D1, by resistance R 100 rear output signals.The direct ground connection of the collector electrode of the source electrode of field effect transistor M1 and triode Q2.

Further, the concrete connection of described control unit is:

By the AT89S2051 Single-chip Controlling, the P1.0-P1.5 mouth of single-chip microcomputer is that 6 road output of pulse signals are controlled 6 high-power FETs, and the P3.7 mouth is inputted for commutation broken height frequency signal, when P3.7 is low level, and the equal output low level of P1.0-P1.5.

The utility model is debugged at lathe by adopting the structures such as driver element and control unit, and effect is very good, and normal process efficient can reach more than 8000/hour, can reach the soonest 12000/ hour.The molybdenum filament loss ratio is original to improve 1 times.It is low so just to efficiently solve present high-speed wire linear cutting high frequency electric source working (machining) efficiency, the problem that the molybdenum filament loss is bigger than normal has reduced the loss of each company, has guaranteed the operation of each company's high efficiency, high benefit, has played good effect.

Description of drawings

Fig. 1 is the structured flowchart of the high efficiency low-loss high-frequency power supply that provides of the utility model embodiment;

Fig. 2 is the circuit diagram of the driver element that provides of the utility model embodiment;

Fig. 3 is the circuit diagram of the control unit that provides of the utility model embodiment.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Fig. 1 shows the structure of the high efficiency low-loss high-frequency power supply that the utility model provides.Comprise driver element 1, control unit 2 two parts.Input signal drives high power valve work through driver element 1, after signal is controlled to control unit 2, and output signal then.

Driver element is used for unit under test is passed in input, drives unit under test and carries out, and accepts the unit under test execution result, and judges.Adopted the switching tube of middle power, used pipe type of drive output, guaranteed that high power valve can be operated in to open district and cut-off region.

Control unit is used for the workflow management of the program of being responsible for, and effectively controls the size of output current, thereby prevents that effectively molybdenum filament from blowing because electric current is excessive, also reduces the loss of molybdenum filament.

The concrete connection of driver element is: the collector electrode by NPN type triode triode Q1 meets DC power supply+12V, the emitter of triode Q1 connects the emitter of positive-negative-positive triode triode Q2, triode Q1 links to each other through the grid of resistance R 111 with field effect transistor M1 with the emitting stage of triode Q2, and triode Q1 links to each other with input signal through resistance R 1 with the base stage of triode Q2.The drain electrode of field effect transistor M1 meets DC power supply+100V through voltage-stabiliser tube D1, by resistance R 100 rear output signals.The direct ground connection of the collector electrode of the source electrode of field effect transistor M1 and triode Q2.

The concrete connection of control unit is: by the AT89S2051 Single-chip Controlling, the P1.0-P1.5 mouth of single-chip microcomputer is that 6 road output of pulse signals are controlled 6 high-power FETs, the P3.7 mouth is inputted for commutation broken height frequency signal, when P3.7 is low level, and the equal output low level of P1.0-P1.5.

Input signal behind resistance R 1, triode triode Q1, triode Q2, arrives field effect transistor M1 through resistance R 111 again, and by resistance R 100 output signals, voltage-stabiliser tube D1 guarantees that field effect transistor maintains under the certain voltage and works.Through after the driving of power tube, high power valve is operated in opens district and cut-off region, then be connected on the AT89S2051 single-chip microcomputer pin P1.0-P1.5 of control unit, after the effect by single-chip microcomputer, effectively the size of control output current plays preventing that molybdenum filament from blowing and reducing the purpose of the loss of molybdenum filament because electric current is excessive.

Carry out software programming by above-mentioned principle and debug at lathe, effect is very good, and normal process efficient can reach more than 8000/hour, can reach the soonest 12000/ hour.The molybdenum filament loss ratio is original to improve 1 times.It is low so just to efficiently solve present high-speed wire linear cutting high frequency electric source working (machining) efficiency, the problem that the molybdenum filament loss is bigger than normal has reduced the loss of each company, has guaranteed the operation of each company's high efficiency, high benefit, has played good effect.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (3)

1. high efficiency low-loss high-frequency power supply is characterized in that this power supply comprises:

Be used for unit under test is passed in input, the driving unit under test is carried out, and accepts the unit under test execution result, and judges, has adopted the switching tube of middle power, uses the output of pipe type of drive, guarantees that high power valve can be operated in the driver element of opening district and cut-off region;

Be used for the workflow management of the program of being responsible for, the size of control output current prevents that molybdenum filament from blowing because electric current is excessive, also reduces the control unit of the loss of molybdenum filament.

2. power supply as claimed in claim 1 is characterized in that, the concrete connection of described driver element is:

Collector electrode by NPN type triode triode Q1 meets DC power supply+12V, the emitter of triode Q1 connects the emitter of positive-negative-positive triode triode Q2, triode Q1 links to each other through the grid of resistance R 111 with field effect transistor M1 with the emitting stage of triode Q2, and triode Q1 links to each other with input signal through resistance R 1 with the base stage of triode Q2.The drain electrode of field effect transistor M1 meets DC power supply+100V through voltage-stabiliser tube D1, by resistance R 100 rear output signals.The direct ground connection of the collector electrode of the source electrode of field effect transistor M1 and triode Q2.

3. power supply as claimed in claim 1 is characterized in that, the concrete connection of described control unit is:

By the AT89S2051 Single-chip Controlling, the P1.0-P1.5 mouth of single-chip microcomputer is that 6 road output of pulse signals are controlled 6 high-power FETs, and the P3.7 mouth is inputted for commutation broken height frequency signal, when P3.7 is low level, and the equal output low level of P1.0-P1.5.

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