CN205490187U - Ring -opening high voltage power supply - Google Patents

Abstract

The utility model relates to a high voltage power supply especially relates to a ring -opening high voltage power supply. This ring -opening high voltage power supply includes rectification voltage reduction unit and the contravariant unit that steps up, and rectification voltage reduction unit carries out rectification, filtering and steps down and handle the 220V line voltage of input, first voltage that the output ripple coefficient is low, and the contravariant is stepped up the unit and is carried out the contravariant to first voltage and step up the processing, second voltage that the output ripple coefficient hangs down. Therefore, the utility model discloses ring -opening high voltage power supply can be to the little high -tension electricity of ion chamber output ripple coefficient.

Description

A kind of open loop high voltage power supply

Technical field

This utility model relates to high voltage power supply, particularly to a kind of open loop high voltage power supply.

Background technology

High voltage power supply is a critical piece of air cleaning facility, for providing thousand of to air cleaning facility Volt is to the DC voltage of Wan Duofu.

Refer to Fig. 1, Fig. 1 is high voltage power supply fundamental diagram in air cleaning facility.Such as Fig. 1 institute Showing, line voltage 220V processes through the boosting of high voltage power supply, loads on ion chamber.Due to high voltage power supply The high pressure of 6000V can be exported, natural bacteria and virus can be killed moment, accomplish non-secondary pollution.Air Molecule forms anion at high pressure conditions, and anion is the most healthy.

Owing to the circuit structure design of open loop high voltage power supply is simple, production cost is low, and Comparision is reliable, existing There is most of air cleaning facility mesohigh power supply to use this kind of circuit structure, but have the disadvantage in that output Ripple coefficient of voltage big.

Utility model content

This utility model is in order to overcome the deficiencies in the prior art, and purpose aims to provide a kind of open loop high voltage power supply, This high voltage power supply solves big the asking of open loop high voltage power supply output voltage ripple coefficient in existing air purifier Topic.

In order to solve above-mentioned technical problem, the basic technical scheme that the utility model proposes is:

Concrete, this utility model provides a kind of open loop high voltage power supply, including:

Rectification pressure unit；Described rectification pressure unit is for carrying out rectification, filtering to the line voltage of input And blood pressure lowering, export the first voltage；

And inversion boosting unit；Described inversion boosting unit and the electrical connection of rectification pressure unit, for institute State the first voltage and carry out inversion and boosting process, export the second voltage.

Further, described rectification pressure unit includes:

First current rectifying and wave filtering circuit；Described first current rectifying and wave filtering circuit is for carrying out whole to the line voltage of input Stream filtering；

First transformator；The former limit of described first current rectifying and wave filtering circuit and the first transformator connects；

Second current rectifying and wave filtering circuit；The secondary of described second current rectifying and wave filtering circuit and the first transformator connects, right The voltage x current loaded from secondary carries out rectifying and wave-filtering, exports the first voltage；

Opto-coupled feedback circuit；Described opto-coupled feedback circuit gathers described first voltage, and output gathers signal；

Voltage-regulating circuit；Described voltage-regulating circuit produces voltage adjustment signal according to described collection signal, To adjust the output voltage of described first transformator.

Further, described rectification pressure unit also includes that the potentiometer for adjusting described first voltage adjusts electricity Road, described potentiometer adjusts circuit and voltage-regulating circuit electrical connection.

Further, described inversion boosting unit includes:

Double-tubes oscillator；Described first voltage-drop loading, in the input of described double-tubes oscillator, two-tube shakes Swing circuit and the first voltage is carried out inversion and boosting；

Second transformator；The former limit of described second transformator and double-tubes oscillator electrical connection；

And rectification boosting circuit；Described rectification boosting circuit and the second transformator secondary electrical connection, to from The voltage x current that secondary loads carries out rectification and filtering, exports the second voltage.

The beneficial effects of the utility model are: the 220V line voltage of input is carried out whole by rectification pressure unit Stream, filtering and blood pressure lowering process, the first voltage that output ripple coefficient is low, and inversion boosting unit is to the first electricity Pressure carries out inversion and boosting processes, the second voltage that output ripple coefficient is low.Therefore, this utility model open loop High voltage power supply can be little to ion chamber output ripple coefficient high-tension electricity.

Accompanying drawing explanation

Fig. 1 is high voltage power supply fundamental diagram in air cleaning facility.

Fig. 2 provides the theory diagram of a kind of open loop high voltage power supply for this utility model embodiment.

Fig. 3 provides the circuit design principle figure of rectification pressure unit for this utility model embodiment.

The circuit design principle figure of the inversion boosting unit that Fig. 4 provides for this utility model embodiment.

Detailed description of the invention

It is described further below with reference to 2 to 4 pairs of this utility model of accompanying drawing, but should not limit with this Protection domain of the present utility model.For convenience of explanation and understand the technical solution of the utility model, below Illustrate that the orientation that the used noun of locality is all shown with accompanying drawing is as the criterion.

Refer to Fig. 2, Fig. 2 and the theory diagram of a kind of open loop high voltage power supply is provided for this utility model embodiment. As in figure 2 it is shown, rectification pressure unit 20 carries out rectification, filtering to the line voltage 10 of the 220V of input And blood pressure lowering, export the first voltage, inversion boosting unit 30 and rectification pressure unit 20 and electrically connect, inversion Boosting unit 30 carries out inversion to the first voltage and boosting processes, and exports the second voltage, loads on ion chamber 40.Wherein, the present embodiment the first magnitude of voltage is 12V, and the second magnitude of voltage can be 4KV, it is also possible to for 8KV。

Refer to Fig. 3, Fig. 3 and the circuit design principle of rectification pressure unit is provided for this utility model embodiment Figure.As it is shown on figure 3, the first current rectifying and wave filtering circuit 201 carries out rectification filter to the 220V line voltage of input Ripple, wherein, the first current rectifying and wave filtering circuit 201 uses full-bridge rectification, uses electrochemical capacitor filtering, and it can Effectively reduce ripple factor.The former limit of the first current rectifying and wave filtering circuit 201 and the first transformator 202 connects, The secondary of the second current rectifying and wave filtering circuit 203 and the first transformator 202 connects, to the voltage electricity loaded from secondary Stream carries out rectifying and wave-filtering, exports the first voltage.Second current rectifying and wave filtering circuit 203 uses Half bridge rectifier, uses Electrochemical capacitor filters, and it can effectively reduce ripple factor further.

The present embodiment opto-coupled feedback circuit 204 gathers the first voltage by resistance R1, will gather signal loading In the former limit of optocoupler U1, adjust circuit 205 from the secondary input voltage of optocoupler U1.Optocoupler U1 can have Effect forceful electric power is isolated, output harmonic wave poor collection signal.

The voltage-regulating circuit 205 power switch chip U2 with model as VIPER22A is Voltage Cortrol core The heart, produces voltage adjustment signal, to adjust the first transformation according to the collection signal that the secondary of optocoupler U1 inputs The output voltage of device 202.Reference voltage comparator U3 can stablize the original edge voltage of optocoupler U1, so that The feedback signal of optocoupler U1 is the most interfered by outside.

Potentiometer adjusts circuit 206 and voltage-regulating circuit 205 electrically connects.The present embodiment passes through migration potential Device R2, and by the cooperation of resistance R3 and R4, affect the output voltage of voltage-regulating circuit 205, To reach to adjust the output voltage of the first transformator 202.Therefore, the present embodiment can also be adjusted by potentiometer Whole circuit 206 adjusts output voltage accurately.

The circuit design that refer to the inversion boosting unit that Fig. 4, Fig. 4 provide for this utility model embodiment is former Reason figure.As shown in Figure 4, in double-tubes oscillator 301, electric capacity C1 is electrochemical capacitor, and it can be effective Preventing the harmonic wave from ground end from disturbing, energy storage inductor L1 coordinates subsequent conditioning circuit to complete the inverse of double-tubes oscillator Become and boosting process, audion Q1, Q2 and electric capacity C2 coordinate the second transformator 302 formed one positive and negative Feedback oscillating circuit, is amplified the first voltage of input, inversion and oscillation treatment.Two-tube push-pull type is vibrated The amplification of circuit is big, and harmonic content is few.

Former limit and the double-tubes oscillator 301 of the present embodiment the second transformator 302 electrically connect, rectifier boost electricity Road 303 and the second transformator 302 secondary electrical connection, the voltage x current loaded from secondary is carried out rectification with Filtering, exports the second voltage.Rectification boosting circuit 303 passes through electric capacity C3, C4, C5 and C6 to electric current It is filtered, carries out rectification by diode D1, D2, D3 and D4,4KV can be exported, it is also possible to Output 8KV.

In sum, rectification pressure unit 20 carries out rectification, filtering to the 220V line voltage 10 of input And blood pressure lowering processes, the first voltage that output ripple coefficient is low, the first voltage is entered by inversion boosting unit 30 Row inversion and boosting process, the second voltage that output ripple coefficient is low.Therefore, the present embodiment open loop high-tension electricity Source can be little to ion chamber output ripple coefficient high-tension electricity.

The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be right Above-mentioned embodiment changes and revises.Therefore, this utility model is not limited to be disclosed above and describe Detailed description of the invention, should also be as falling into power of the present utility model to modifications and changes more of the present utility model In the protection domain that profit requires.Although additionally, this specification employs some specific terms, but these Term merely for convenience of description, does not constitute any restriction to this utility model.

Claims (4)

1. an open loop high voltage power supply, it is characterised in that including:

Rectification pressure unit；Described rectification pressure unit is for carrying out rectification, filtering to the line voltage of input And blood pressure lowering, export the first voltage；

And inversion boosting unit；Described inversion boosting unit and the electrical connection of rectification pressure unit, for institute State the first voltage and carry out inversion and boosting process, export the second voltage.

Open loop high voltage power supply the most according to claim 1, it is characterised in that described rectification blood pressure lowering list Unit includes:

First current rectifying and wave filtering circuit；Described first current rectifying and wave filtering circuit is for carrying out whole to the line voltage of input Stream filtering；

First transformator；The former limit of described first current rectifying and wave filtering circuit and the first transformator connects；

Second current rectifying and wave filtering circuit；The secondary of described second current rectifying and wave filtering circuit and the first transformator connects, right The voltage x current loaded from secondary carries out rectifying and wave-filtering, exports the first voltage；

Opto-coupled feedback circuit；Described opto-coupled feedback circuit gathers described first voltage, and output gathers signal；

Voltage-regulating circuit；Described voltage-regulating circuit produces voltage adjustment signal according to described collection signal, To adjust the output voltage of described first transformator.

Open loop high voltage power supply the most according to claim 2, it is characterised in that described rectification blood pressure lowering list Unit also includes that the potentiometer for adjusting described first voltage adjusts circuit, and described potentiometer adjusts circuit and electricity Pressure adjusts circuit electrical connection.

Open loop high voltage power supply the most according to claim 1, it is characterised in that described inversion boosting list Unit includes:

Double-tubes oscillator；Described first voltage-drop loading, in the input of described double-tubes oscillator, two-tube shakes Swing circuit and the first voltage is carried out inversion and boosting；

Second transformator；The former limit of described second transformator and double-tubes oscillator electrical connection；

And rectification boosting circuit；Described rectification boosting circuit and the second transformator secondary electrical connection, to from The voltage x current that secondary loads carries out rectification and filtering, exports the second voltage.