CN207021911U - The Switching Power Supply of plasma reactor - Google Patents
The Switching Power Supply of plasma reactor Download PDFInfo
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- CN207021911U CN207021911U CN201720913186.9U CN201720913186U CN207021911U CN 207021911 U CN207021911 U CN 207021911U CN 201720913186 U CN201720913186 U CN 201720913186U CN 207021911 U CN207021911 U CN 207021911U
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Abstract
A kind of Switching Power Supply of plasma reactor, it includes the rectifier bridge being connected with electric main, input capacitance, half-bridge controls IC, power MOS pipe, the half-bridge power converter of power transformer and capacitance composition, it also includes some by resistance, the feedforward control circuit of transistor and the first diode composition, described resistance has four resistance and is sequentially connected in series a booster circuit, after the booster circuit is connected to rectifier bridge, described transistor and the first diode is connected to the both ends of 3rd resistor, the conducting electric current end of the transistor is connected to half-bridge control IC frequency pin, another pole of transistor and the first diode output are connected to half-bridge control IC other end pin；It has that structure composition is reasonable, safe and reliable, can export stable operating current, the features such as improving operating efficiency.
Description
Technical field
The present invention relates to a kind of Switching Power Supply of plasma reactor, belongs to plasma reactor technology neck
Domain.
Background technology
Plasma for purification sterilizer, it is a kind of green product in existing air clearing product, it is deep by wide
The welcome of large user.Core component in plasma for purification sterilizer is plasma generator, and it is needed in logical high-tension electricity
Powerful disinfective action could be produced during stream, for this reason, it may be necessary to provide high pressure and galvanic current stream to it.But existing
Switching Power Supply in, can not very well coordinate with plasma reactor, can not mainly provide stable high voltage direct current, simultaneously
Do not have in use yet good safeguard protection effect, especially excessively stream or it is over-pressed when, it is impossible to protect.
Existing plasma reactor at work, because Switching Power Supply has certain deficiency, can not normally work,
The efficiency of sterilizing and purifying is caused to substantially reduce, and cost payout increase, can not meet the needs of existing market, also be unfavorable for growing
The application and development of phase.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and it is reasonable to provide a kind of structure composition, uses peace
It is complete reliable, stable operating current can be exported, improves the Switching Power Supply of the plasma reactor of operating efficiency.
The purpose of the present invention is completed by following technical solution, a kind of Switching Power Supply of plasma reactor,
It includes rectifier bridge, input capacitance, half-bridge control, power MOS pipe, power transformer and the capacitance being connected with electric main
The half-bridge power converter of composition, it also includes a feedforward control circuit being made up of resistance, transistor and the first diode,
Described resistance has four resistance and is sequentially connected in series a booster circuit, described after the booster circuit is connected to rectifier bridge
Transistor and the first diode are connected to the both ends of 3rd resistor, and the conducting electric current end of the transistor is connected to half-bridge control
The frequency pin of system, another pole of transistor and the first diode output are connected to other end pin of half-bridge control.
As preferred：The output end pin of the half-bridge control is connected on described power transformer, and on outlet line
A backfeed loop tieback is connected with the loop of another pole connection half-bridge control of the transistor, is in series with its backfeed loop
First electric capacity, the 5th resistance and the second diode, and connect between the 5th resistance and the second diode by a pressure-resistant diode
Ground.
As preferred：Pass through the 6th resistance and the 7th resistance string on the loop of another pole connection half-bridge control of transistor
After connection together with the power MOS pipe loop being made up of two power MOS pipes to connect after booster circuit and half-bridge control output
It is connected to rectification bridge output end；The rectification bridge output end also connects described power transformer primary line by a capacitance
External connection end is enclosed, the power transformer primary coil external connection end is grounded after connecting by one second electric capacity with power MOS pipe loop.
The present invention come control input voltage, is exported to plasma reactor voltage using feedforward control circuit with reaching
It is stable；The feedforward control circuit is according to the working frequency of the change rise half-bridge circuit of input voltage, so as to limit output
Power, when reaching input voltage change, export the model for the effect of the power stability of plasma reactor, improving input voltage
Enclose, be especially adapted for use in all plasma reactors；It has that structure composition is reasonable, safe and reliable, can export stable
Operating current, improve operating efficiency the features such as.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail：Shown in Fig. 1, a kind of plasma of the present invention is anti-
The Switching Power Supply of device is answered, it includes rectifier bridge B1, input capacitance C2, half-bridge control IC, the power MOS being connected with electric main
Pipe, power transformer T1 and capacitance C5 composition half-bridge power converter, its feature spy be it also include one by resistance,
The feedforward control circuit of transistor Q1 and the first diode D1 compositions, described resistance have four resistance R1, R2, R3, R4 simultaneously
A booster circuit is sequentially connected in series, after the booster circuit is connected to rectifier bridge B1, described transistor Q1 and the first diode
D1 is connected to 3rd resistor R3 both ends, and the conducting electric current end of the transistor Q1 is connected to half-bridge control IC frequency pin
CF, transistor Q1 another pole and the first diode D1 output ends are connected to half-bridge control IC other end pin.
Shown in figure, the output end pin OUT of the half-bridge control IC is connected on described power transformer T1, and is exporting
A backfeed loop tieback is connected with circuit on another pole connection half-bridge control IC of transistor Q1 loop, it feeds back to
Be in series with the first electric capacity C9, the 5th resistance R9 and the second diode D2 in road, and the 5th resistance R9 and the second diode D2 it
Between pass through a pressure-resistant diode Z3 ground connection.
Pass through the electricity of the 6th resistance R5 and the 7th on another pole connection half-bridge control IC of transistor Q1 of the present invention loop
The power being made up of two power MOS pipes Q2, Q3 after resistance R6 series connection with connecting after booster circuit and half-bridge control IC outputs
Metal-oxide-semiconductor loop is connected to rectification bridge output end together；The rectification bridge output end is also by a capacitance C5 connections Suo Shu
Power transformer T1 primary coil external connection ends, power transformer T1 primary coils external connection end pass through one second electric capacity C6 and power
Metal-oxide-semiconductor loop is grounded after connecting.
Embodiment：Shown in Fig. 1, by resistance R1, R2, R3, R4 potential-divider network formed and transistor Q1, diode D1 compositions
Frequency control circuit together constitute feedforward control circuit.
After the bleeder circuit sampling input direct voltage be made up of resistance R1, R2, R3, R4, when AC-input voltage raises
When, cause DC voltage to rise, until when the DC voltage on resistance R3 makes transistor Q1 conductings, electric current injection half-bridge control IC
Frequency pin (CF), half-bridge circuit working frequency response rise, due to power inductance metering function strengthen, power output meeting
Limited without further up, the power device temperature including power MOS pipe will not be further up, so as to ensure
The reliability of changed power device, ensure output to the stabilization of plasma reactor terminal voltage.
Claims (3)
1. a kind of Switching Power Supply of plasma reactor, it includes the rectifier bridge being connected with electric main（B1）, input capacitance
（C2）, half-bridge control (IC), power MOS pipe, power transformer（T1）The half-bridge power converter formed with capacitance (C5),
Its feature spy is that it also includes a feedforward control circuit being made up of resistance, transistor (Q1) and the first diode (D1),
Described resistance has four resistance (R1, R2, R3, R4) and is sequentially connected in series a booster circuit, and the booster circuit is connected to whole
After flowing bridge (B1), described transistor (Q1) and the first diode (D1) are connected to 3rd resistor (R3) both ends, described
The conducting electric current end of transistor (Q1) is connected to the frequency pin (CF) of half-bridge control (IC), another pole and first of transistor (Q1)
Diode (D1) output end is connected to other end pin of half-bridge control (IC).
2. the Switching Power Supply of plasma reactor according to claim 1, it is characterised in that the half-bridge controls (IC)
Output end pin (OUT) be connected on described power transformer (T1), and a backfeed loop tieback is connected with outlet line
In on the loop of another pole connection half-bridge control (IC) of the transistor (Q1), the first electric capacity is in series with its backfeed loop
(C9), the 5th resistance (R9) and the second diode（D2）, and in the 5th resistance（R9）With the second diode（D2）Between pass through one
Pressure-resistant diode（Z3）Ground connection.
3. the Switching Power Supply of plasma reactor according to claim 1 or 2, it is characterised in that the transistor（Q1）
Another pole connection half-bridge control（IC）Loop on pass through the 6th resistance（R5）With the 7th resistance（R6）After series connection with booster circuit
And half-bridge control（IC）Connect after output by two power MOS pipes（Q2、Q3）The power MOS pipe loop of composition together and connects
In rectification bridge output end；The rectification bridge output end also connects described power transformer (T1) just by a capacitance (C5)
Level coil external connection end, power transformer (T1) the primary coil external connection end pass through one second electric capacity (C6) and power MOS pipe loop
It is grounded after connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720913186.9U CN207021911U (en) | 2017-07-26 | 2017-07-26 | The Switching Power Supply of plasma reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720913186.9U CN207021911U (en) | 2017-07-26 | 2017-07-26 | The Switching Power Supply of plasma reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207021911U true CN207021911U (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720913186.9U Active CN207021911U (en) | 2017-07-26 | 2017-07-26 | The Switching Power Supply of plasma reactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN207021911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332451A (en) * | 2017-07-26 | 2017-11-07 | 浙江佩洁尔医疗科技有限公司 | A kind of Switching Power Supply of plasma reactor |
-
2017
- 2017-07-26 CN CN201720913186.9U patent/CN207021911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332451A (en) * | 2017-07-26 | 2017-11-07 | 浙江佩洁尔医疗科技有限公司 | A kind of Switching Power Supply of plasma reactor |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 312351 Shaoxing City, Zhejiang Province, Shangyu District Liang Hu Industrial Area (Ni Jiabao) Patentee after: Zhejiang Peijieer Medical Technology Co., Ltd. Address before: 312351 Shaoxing City, Zhejiang Province Liang Hu Industrial Area (Ni Jiabao) Patentee before: Zhejiang Peijieer Medical Technology Co., Ltd. |