CN205725507U - The power output circuit of multiple transformers series connection - Google Patents

Abstract

A kind of power output circuit of multiple transformers series connection, relate to the power output circuit of a kind of high voltage power supply, it is made up of the first power switch pipe, the second power switch pipe and many high-tension transformer unit, first primary coil of each high-tension transformer unit carries out the most in series first primary low tension loop, second primary coil of each high-tension transformer unit carries out the most in series second primary low tension loop, and the secondary high pressure coil of each high-tension transformer unit carries out forward superposition output；Input power is connected to head end and the tail end of the second primary low tension loop of the first primary low tension loop, and the tail end of the first primary low tension loop is connected to the drain electrode of the second power switch pipe, and the head end of the second primary low tension loop is connected to the drain electrode of the first power switch pipe.This utility model makes the high-tension electricity produced on each secondary high pressure coil be overlapped output, substantially increases output voltage, to meet the requirement of the distance striking of plasma device.

Description

The power output circuit of multiple transformers series connection

Technical field

This utility model relates to electronic circuit, is related specifically to the power output circuit of a kind of high voltage power supply.

Background technology

Currently, plasma technology is widely used, with plasma disposal of commercial harmful substance, medical waste, The mode of house refuse is made a world of difference with general burning mode, and plasma is formed under ionosphere or electric discharge phenomena A kind of state, discharge process makes work gas molecule lose outer-shell electron and form ionic condition, produces height through mutually collision Temperature, when processed industrial harmful substance, medical waste, junk are by the plasma attack of High Temperature High Pressure, its molecule, Atom will reconfigure and generate new material, so that harmful substance becomes innocuous substance.Disposal of commercial harmful substance, Medical waste, house refuse plasma apparatus need high-voltage arc strike power supply.

Cook gasifying agent with plasma torch heat resolve steam to come gasification of coal or rubbish and will become first-selection from now on, Under condition of normal pressure, temperature hydrone when 2000K decomposes hardly, has the water of 25% to decompose during 2500K, and 3400～3500K Time hydrogen and the molar fraction of oxygen reach maximum, respectively 18% and 6%, when temperature reaches 4200K, hydrone will all divide Solving as hydrogen, hydrogen, oxygen, oxygen and hydrogen-oxygen atomic group, general mode of heating is difficult to reach the highest temperature, and use etc. from Daughter spray gun is then easily done, and this kind of plasma torch needs high voltage power supply to carry out striking.

In order to increase the energy of plasma arc and extend the action time of plasma arc, negative electrode and anode need to be made Between distance long enough, it is desirable to striking power supply provide sufficiently high striking voltage.But the use list in existing high voltage power supply Individual high-tension transformer, owing to need to considering secondary reflection factor or being limited by magnetic core window, the transformation of single high-tension transformer Ratio is restricted, and makes output voltage not high enough, there is the shortcoming that can not meet distance striking requirement.

Utility model content

The purpose of this utility model is intended to the shortcoming overcoming existing high voltage power supply can not meet distance striking requirement, it is provided that The power output circuit of a kind of multiple transformers series connection, exports sufficiently high striking voltage, to meet plasma device distance The requirement of striking, the energy when disposal of commercial harmful substance, medical waste, house refuse is higher and in hgher efficiency.

The power output circuit of a kind of multiple transformers of the present utility model series connection, including high-tension transformer unit, same height The primary coil of pressure transformer unit carries out nested setting with secondary high pressure coil, it is characterized in that power output circuit is by the first merit Rate switching tube (VT1), the second power switch pipe (VT2) and multiple high-tension transformer unit composition, wherein, high-tension transformer unit Being made up of primary coil and secondary high pressure coil, primary coil includes the first primary coil and the second primary coil, and first is primary Coil and the second primary coil are arranged on internal layer in Double-wire parallel wound mode, and secondary high pressure coil is arranged on outer layer；High-tension transformer Unit is more than two, and the first primary coil of multiple high-tension transformer unit carries out the most in series first and primary low pushes back Road, the second primary coil of multiple high-tension transformer unit carries out the most in series second primary low tension loop, multiple high pressure The secondary high pressure coil of transformer unit carries out forward superposition output；Input power (V+) is connected to the first primary low tension loop Head end and the tail end of the second primary low tension loop, the tail end of the first primary low tension loop is connected to the second power switch pipe (VT2) Drain electrode, the head end of the second primary low tension loop is connected to the drain electrode of the first power switch pipe (VT1), the first power switch pipe (VT1) source electrode and the source electrode of the second power switch pipe (VT2) are connected to ground wire.

In this utility model, between tail end and the ground wire of the first primary low tension loop, there is the second absorption capacitor (C2)； The first absorption capacitor (C1) is had between head end and the ground wire of the second primary low tension loop；Tail in the first primary low tension loop The second current-limiting resistor (R2) is had between end and the drain electrode of the second power switch pipe (VT2)；Head in the second primary low tension loop The first current-limiting resistor (R1) is had between end and the drain electrode of the first power switch pipe (VT1).

This utility model is applied in high-voltage power apparatus, uses switch power technology, when operating frequency is more than 400 kilocycles Time, each high-tension transformer is air-core transformer, is all not required to use magnetic core；When operating frequency is 1-400 kilocycle, at each high voltage variable Depressor needs use FERRITE CORE, the first primary coil, the second primary coil and the secondary high pressure line in each high-tension transformer Circle is separately mounted in respective FERRITE CORE.

This utility model takes the measure of multiple transformers tandem compound, makes high-tension electricity respectively at multiple transformer secondary output high pressure Produce on coil, carry out high-tension electricity superposition output, substantially increase output voltage, draw meeting the distance of plasma device The requirement of arc；Meanwhile, the reflection stress of secondary high pressure coil is reduced, it is to avoid switching device damages.

Operation principle of the present utility model is: the first power switch pipe (VT1) and the second power switch pipe (VT2) are alternately led Lead to or cut-off, make the first primary coil in each high-tension transformer and the second primary coil be alternately produced operating current, Qi Zhong The current polarity of one primary coil and the second primary coil is contrary, makes the secondary high pressure coil of each high-tension transformer have power defeated Going out, the power output of multiple high-tension transformer secondary high pressure coils produces high voltage and is overlapped output, it is provided that to plasma Device carries out distance striking operation.In this utility model, the voltage of secondary high pressure coil output is by Vin × N2/N1 × T00/T × n determines, wherein Vin is input voltage, and N2 is the number of turn of secondary high pressure coil, and N1 is the first primary coil or the second primary line The number of turn of circle, T00/T is dutycycle, and n is the quantity of high-tension transformer.

The beneficial effects of the utility model are: take the measure of multiple transformers tandem compound, make each secondary high pressure coil The high-tension electricity of upper generation is overlapped output, substantially increases output voltage, to meet the distance striking of plasma device Requirement, the energy when disposal of commercial harmful substance, medical waste, house refuse is higher and in hgher efficiency.This utility model Make high-tension electricity produce on each secondary high pressure coil respectively, reduce the reflection stress of secondary high pressure coil, it is to avoid switching device Damage.

Accompanying drawing explanation

Accompanying drawing 1 is the power output circuit figure of a kind of multiple transformers of the present utility model series connection.

Accompanying drawing 2 is the power output circuit figure of another kind of multiple transformers series connection of the present utility model.

In figure: R1. the first current-limiting resistor, R2. the second current-limiting resistor, C1. the first absorption capacitor, C2. second inhales Current condenser, VT1. the first power switch pipe, VT2. the second power switch pipe, T1. the first high-tension transformer unit, W1-1. One primary coil a, W1-2. first level high-tension coil of the first primary coil b, W1-3., T2. the second high-tension transformer unit, W2-1. the second primary coil a, W2-2. the second primary coil b, W2-3. second subprime high-tension coil, T3. the 3rd high-tension transformer Unit, W3-1. the 3rd primary coil a, W3-2. the 3rd primary coil b, W3-3. third time level high-tension coil, V+. input power, 1. the first high-voltage output end, 2. the second high-voltage output end.

Detailed description of the invention

In embodiment shown in embodiment 1 Fig. 1, the power output circuit of multiple transformers series connection is by the first power switch Pipe (VT1), the second power switch pipe (VT2) and multiple high-tension transformer unit composition, wherein, high-tension transformer unit is by primary Coil and secondary high pressure coil are constituted, and primary coil includes the first primary coil and the second primary coil, the first primary coil and Second primary coil carries out coiling in Double-wire parallel wound mode, and secondary high pressure coil is wound on skeleton with lattice winding method, just Level coil carries out nested setting with secondary high pressure coil, and the first primary coil and the second primary coil are arranged on internal layer, secondary high Line ball circle is arranged on outer layer；High-tension transformer unit is more than two, and the first primary coil of multiple high-tension transformer unit enters Row the first primary low tension loop the most in series, the second primary coil of multiple high-tension transformer unit is forward connected structure Becoming the second primary low tension loop, it is defeated that the secondary high pressure coil of multiple high-tension transformer unit carries out high pressure superposition the most in series Go out loop；Input power (V+) is connected to head end and the tail end of the second primary low tension loop of the first primary low tension loop, and first The tail end of primary low tension loop is connected to the drain electrode of the second power switch pipe (VT2), and the head end of the second primary low tension loop connects To the drain electrode of the first power switch pipe (VT1), the source electrode of the first power switch pipe (VT1) and the second power switch pipe (VT2) Source electrode is connected to ground wire；Two ends end to end in secondary high pressure loop constitute the first high-voltage output end (1) and the second high-voltage output end (2).The present embodiment is applied in the high-voltage power apparatus of switching regulator, and its operating frequency is 1-400 kilocycle, at each high-tension transformer In have FERRITE CORE, the first primary coil, the second primary coil and secondary high pressure coil are separately mounted to respective ferrite On magnetic core.The power output of each high-tension transformer secondary high pressure coil of the present embodiment produces high voltage and is overlapped output, carries Supply plasma device carries out distance striking operation.

In embodiment shown in embodiment 2 Fig. 2, it is on the basis of first embodiment, primary low pushes back first There is the second absorption capacitor (C2) between tail end and the ground wire on road, between head end and the ground wire of the second primary low tension loop, have the One absorption capacitor (C1), the first absorption capacitor (C1) and the second absorption capacitor (C2) are used for absorbing each high-tension transformer and produce Raw inverse peak voltage, it is to avoid device for power switching damages；Tail end and the second power switch pipe in the first primary low tension loop (VT2) there is the second current-limiting resistor (R2) between drain electrode, at head end and first power switch pipe of the second primary low tension loop (VT1) the first current-limiting resistor (R1), the first current-limiting resistor (R1) and the second current-limiting resistor (R2) is had to use between drain electrode Come limiting overload electric current or short circuit current, prevent device for power switching from damaging because crossing stream.Other structures and first embodiment Identical, repeat no more.

Claims (3)

1. a power output circuit for multiple transformers series connection, including high-tension transformer unit, same high-tension transformer unit Primary coil carry out with secondary high pressure coil nested arrange, it is characterized in that power output circuit by the first power switch pipe (VT1), Second power switch pipe (VT2) and multiple high-tension transformer unit composition, wherein, high-tension transformer unit by primary coil and time Level high-tension coil is constituted, and primary coil includes the first primary coil and the second primary coil, the first primary coil and the second primary Coil is arranged on internal layer in Double-wire parallel wound mode, and secondary high pressure coil is arranged on outer layer；High-tension transformer unit is more than two, First primary coil of multiple high-tension transformer unit carries out the most in series first primary low tension loop, multiple high pressure transformations Second primary coil of device unit carries out the most in series second primary low tension loop, the secondary of multiple high-tension transformer unit High-tension coil carries out forward superposition output；Input power (V+) is connected to the head end of the first primary low tension loop and second primary low Pushing back the tail end on road, the tail end of the first primary low tension loop is connected to the drain electrode of the second power switch pipe (VT2), and second is primary low The head end pushing back road is connected to the drain electrode of the first power switch pipe (VT1), the source electrode of the first power switch pipe (VT1) and the second merit The source electrode of rate switching tube (VT2) is connected to ground wire.

The power output circuit of a kind of multiple transformers the most according to claim 1 series connection, is characterized in that first primary low Push back and between the tail end on road and ground wire, have the second absorption capacitor (C2)；Between head end and the ground wire of the second primary low tension loop There is the first absorption capacitor (C1).

The power output circuit of a kind of multiple transformers the most according to claim 1 series connection, is characterized in that first primary low Push back and between the tail end on road and the drain electrode of the second power switch pipe (VT2), have the second current-limiting resistor (R2)；Primary low second Push back and between the head end on road and the drain electrode of the first power switch pipe (VT1), have the first current-limiting resistor (R1).