CN201577031U - High-frequency and high-voltage power supply control circuit - Google Patents
High-frequency and high-voltage power supply control circuit Download PDFInfo
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- CN201577031U CN201577031U CN2009202376714U CN200920237671U CN201577031U CN 201577031 U CN201577031 U CN 201577031U CN 2009202376714 U CN2009202376714 U CN 2009202376714U CN 200920237671 U CN200920237671 U CN 200920237671U CN 201577031 U CN201577031 U CN 201577031U
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Abstract
The utility model provides a high-frequency and high-voltage power supply control circuit which comprises a rectifying circuit, a bridge inverter circuit and an LC resonance circuit. The high-frequency and high-voltage power supply control circuit further comprises a main-circuit current sampling circuit and a high-voltage current sampling circuit, wherein the main-circuit current sampling circuit is connected with a short-circuit detection circuit; the short-circuit detection circuit is connected with an integrated stop circuit; the high-voltage current sampling circuit is connected with a no-load detection circuit, a discharging detection circuit and a constant-current control circuit respectively; the no-load detection circuit is connected with the integrated stop circuit; the integrated stop circuit is connected with the rectifying circuit through a solenoid switch; the discharging detection circuit, the solenoid switch and the constant-current control circuit are connected with a power transistor driving circuit through a soft-start waveform generator respectively; and the output terminal of the power transistor driving circuit is connected with the bridge inverter circuit. The high-frequency and high-voltage power supply control circuit generates the closed-loop feedback control to regulate the power supply current in real time, thereby achieving the constant-current power supply; and the power supply control circuit has the failure detection function to detect the circuit condition in time and prevent the occurrence of failure, thereby ensuring the normal work of the circuit.
Description
Technical field
The utility model relates to a kind of electrostatic smoke and dust treatment cleaning equipment, the high-frequency high-voltage source control circuit of especially a kind of electrostatic type fume or cooking fume control equipment.
Background technology
In daily life, business activity and industrial processes, can produce various oil smoke mists, these oil smoke mist dischargings if leave, will pollute environment, and the harm people's is healthy, along with the raising day by day of people's environmental consciousness, various Smoke oil purification equipments are consequentiality also.A kind of electrostatic type fume, cooking fume control equipment are arranged at present, it mainly is a principle of utilizing the Electrostatic Absorption molecule, will remove by oil smoke, the flue dust absorption of equipment, reaches to purify or filter effect, the smog removing rate of this kind equipment is very high, is therefore extensively applied to various fields.Electrostatic cleaning equipment need produce high-tension electricity, by the high voltage source control circuit mains supply is carried out normally that conversion realizes, it is present that cleaning equipment adopted is the mode of open loop type control, the high voltage source control circuit carries out exporting the static electric field of high pressure to equipment after the conversion to civil power, because destabilizing factors such as the power supply of power supply, load, environmental condition, cause high-tension current non-constant, influence equipment clean effect and equipment life.
In addition, cleaning equipment is when work, and a lot of occasions of its electric field may produce high-voltage arc or sparkover phenomenon, and present cleaning equipment does not detect discharge, if continue this state, equipment might cause the burning of gleanings, produces dangerous.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to provide a kind of power supply stable, safe and reliable smog, cooking fume control equipment high-frequency high-voltage source control circuit.
The utility model is that the technical scheme that its technical problem of solution is adopted is:
The high-frequency high-voltage source control circuit, comprise the rectification circuit that connects power supply, connect the bridge inverter main circuit of rectification circuit and the LC resonant circuit of connection bridge inverter main circuit, described high-frequency high-voltage source control circuit also is provided with the main circuit current sample circuit and connects the high-tension current sample circuit of high frequency high voltage transformer high-pressure side, described main circuit current sample circuit output is connected with short-circuit detecting circuit, and the short-circuit detecting circuit output is connected with comprehensive halt circuit; Described high-tension current sample circuit output is connected with no load detection circuit, discharge detection circuit and constant-current control circuit respectively, the no load detection circuit output connects comprehensive halt circuit, described comprehensive halt circuit is connected to rectification circuit by electromagnetic switch, the output of described discharge detection circuit, electromagnetic switch and constant-current control circuit is connected to the power switch tube drives circuit by band soft start waveform generator respectively, and described power switch tube drives circuit output end is connected with bridge inverter main circuit.
The beneficial effects of the utility model are: the utility model is by the high-tension current sample circuit, constant-current control circuit, power switch tube drives circuit and major loop constitute close-loop feedback control, can adjust supply current in real time, reach the constant current power supply, the feasible high-tension electricity current stabilization that outputs to the equipment electric field, its power supply safety is reliable, and, the utility model also is provided with unloaded the detection, discharge examination, failure detector circuits such as short-circuit detecting, the situation of testing circuit timely, prevent zero load, the generation of faults such as discharge or short circuit, guarantee circuit, the operate as normal of static electric field and cleaning equipment, therefore, the utility model is a kind of safe and reliable, and long service life can be smog, the high-frequency high-voltage source control circuit that cooking fume control equipment brings good purification to imitate.
Description of drawings
Further specify below in conjunction with the drawings and specific embodiments:
Fig. 1 is a theory diagram of the present utility model;
Embodiment
With reference to Fig. 1, high-frequency high-voltage source control circuit provided by the utility model, it comprises the rectification circuit 1 that connects power supply, connect the bridge inverter main circuit 2 of rectification circuit 1 and the LC resonant circuit 21 of connection bridge inverter main circuit 2, described high-frequency high-voltage source control circuit also is provided with main circuit current sample circuit 3 and connects the high-tension current sample circuit 4 of high frequency high voltage transformer high-pressure side, described main circuit current sample circuit 3 outputs are connected with short-circuit detecting circuit 52, and short-circuit detecting circuit 52 outputs are connected with comprehensive halt circuit 6; Described high-tension current sample circuit 4 outputs are connected with no load detection circuit 53, discharge detection circuit 54 and constant-current control circuit 7 respectively, no load detection circuit 53 outputs connect comprehensive halt circuit 6, described comprehensive halt circuit 6 is connected to rectification circuit 2 by electromagnetic switch 61, the output of described discharge detection circuit 54, electromagnetic switch 61 and constant-current control circuit 7 is connected to power switch tube drives circuit 8 by band soft start waveform generator 81 respectively, and described power switch tube drives circuit 8 outputs are connected with bridge inverter main circuit 2.
The utility model is by high-tension current sample circuit 4, constant-current control circuit 7, power switch tube drives circuit 8 constitutes close-loop feedback control with major loop, constant-current control circuit 7 is by checking the current signal of transformer, be used to guarantee the constant of transformer output current, when output has fluctuation, constant-current control circuit 7 is regulated by the power tube of 8 pairs of bridge inverter main circuits 2 of band soft start waveform generator 81 power controlling tube drive circuits, the output of adjustment power tube, thereby the output to major loop is regulated, and makes high-tension transformer output to the high-tension electricity current constant of electric field; The utility model has been realized the close-loop feedback control of circuit making circuit supply safe and reliable by such scheme, and has been made that the voltage that outputs to high voltage electric field is stable.
The utility model is sampled by the current signal of 3 pairs of major loops of main circuit current sample circuit, and send signal to short-circuit detecting circuit 52, short-circuit detecting circuit 52 detects the signal of telecommunication, if short-circuit conditions occurs, then close by comprehensive halt circuit 6 control relays 61, so just, the short trouble of having realized the major loop part detects control, makes the circuit stability and safety; The connection high frequency high voltage transformer carried out transformation after the power tube of bridge inverter main circuit 2 needing to obtain frequency by resonant circuit 21, the output of 4 pairs of transformers of high-tension current sample circuit of the utility model setting is sampled, send the sample rate current signal to no load detection circuit 53, discharge detection circuit 54 and constant-current control circuit 7, no load detection circuit 53 and discharge detection circuit 54 pass through the normal operation of sampled signal testing circuit respectively, no-load condition occurs if detect, then no load detection circuit 53 is closed by comprehensive halt circuit 6 control relays 61; Discharge detection circuit 54 detects the discharge fluctuation, if there is discharge to take place then can adjust by 8 pairs of bridge inverter main circuits 2 of band soft start waveform generator 81 power controlling switching tube drive circuits, reaches safe output.
As preferred implementation of the present utility model, described current sampling circuit 3 outputs are connected with overload detection circuit 51, described overload detection circuit 51 outputs are connected with comprehensive halt circuit 6, same, overload detection circuit 51 detects the signal of telecommunication, if overload situations occurs, then close by comprehensive halt circuit 6 control relays 61, make circuit reach better self-fault detect effect.
And as preferred embodiment, described discharge detection circuit 54 outputs are connected with discharge counting circuit 55, and discharge counting circuit 55 outputs are connected with comprehensive halt circuit 6; Because circuit possibility continuous discharge, discharge counting circuit 55 can be by discharge detection circuit 54 statistics discharge times, the discharge time of counting when discharge time counting circuit 55 surpasses certain value, for example after 10 times, then can be judged as the circuit working instability, close by comprehensive halt circuit 6 control relays 61, thus the safety of the work of assurance.
In addition, described high-frequency high-voltage source control circuit also is provided with the temperature sensing circuit 9 that connects bridge inverter main circuit 2 and high frequency high voltage transformer, and described temperature sensing circuit 9 outputs are connected to comprehensive halt circuit 6; Temperature sensing circuit 9 can detect power tube and transformer temperature, has guaranteed working temperature, makes circuit safer.
And the high-frequency high-voltage source control circuit also can be provided with the electric current indicating member 91 that connects high frequency high voltage transformer, makes people can directly know the output situation of transformer, is more convenient for control.
In sum, the utility model is that a kind of power supply is stable, safe and reliable smog, cooking fume control equipment high-frequency high-voltage source control circuit.
Claims (7)
1. high-frequency high-voltage source control circuit, comprise the rectification circuit (1) that connects power supply, connect the bridge inverter main circuit (2) of rectification circuit (1) and the LC resonant circuit (21) of connection bridge inverter main circuit (2), it is characterized in that: described high-frequency high-voltage source control circuit also is provided with main circuit current sample circuit (3) and connects the high-tension current sample circuit (4) of high frequency high voltage transformer high-pressure side, described main circuit current sample circuit (3) output is connected with short-circuit detecting circuit (52), and short-circuit detecting circuit (52) output is connected with comprehensive halt circuit (6); Described high-tension current sample circuit (4) output is connected with no load detection circuit (53) respectively, discharge detection circuit (54) and constant-current control circuit (7), no load detection circuit (53) output connects comprehensive halt circuit (6), described comprehensive halt circuit (6) is connected to rectification circuit (2) by electromagnetic switch (61), described discharge detection circuit (54), the output of electromagnetic switch (61) and constant-current control circuit (7) is connected to power switch tube drives circuit (8) by band soft start waveform generator (81) respectively, and described power switch tube drives circuit (8) output is connected with bridge inverter main circuit (2).
2. high-frequency high-voltage source control circuit according to claim 1 is characterized in that: described current sampling circuit (3) output is connected with overload detection circuit (51), and described overload detection circuit (51) output is connected with comprehensive halt circuit (6).
3. high-frequency high-voltage source control circuit according to claim 1 and 2 is characterized in that: described discharge detection circuit (54) output is connected with discharge counting circuit (55), and discharge counting circuit (55) output is connected with comprehensive halt circuit (6).
4. high-frequency high-voltage source control circuit according to claim 1 and 2, it is characterized in that: described high-frequency high-voltage source control circuit also is provided with the temperature sensing circuit (9) that connects bridge inverter main circuit (2) and high frequency high voltage transformer, and described temperature sensing circuit (9) output is connected to comprehensive halt circuit (6).
5. high-frequency high-voltage source control circuit according to claim 3, it is characterized in that: described high-frequency high-voltage source control circuit also is provided with the temperature sensing circuit (9) that connects bridge inverter main circuit (2) and high frequency high voltage transformer, and described temperature sensing circuit (9) output is connected to comprehensive halt circuit (6).
6. high-frequency high-voltage source control circuit according to claim 1 and 2 is characterized in that: described high-frequency high-voltage source control circuit also is provided with the electric current indicating member (91) that connects high frequency high voltage transformer.
7. high-frequency high-voltage source control circuit according to claim 3 is characterized in that: described high-frequency high-voltage source control circuit also is provided with the electric current indicating member (91) that connects high frequency high voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202376714U CN201577031U (en) | 2009-10-22 | 2009-10-22 | High-frequency and high-voltage power supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202376714U CN201577031U (en) | 2009-10-22 | 2009-10-22 | High-frequency and high-voltage power supply control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577031U true CN201577031U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202376714U Expired - Lifetime CN201577031U (en) | 2009-10-22 | 2009-10-22 | High-frequency and high-voltage power supply control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201577031U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005221A (en) * | 2015-06-04 | 2015-10-28 | 中国科学院等离子体物理研究所 | Feedback control method for PSM high voltage power supply |
| CN106488600A (en) * | 2015-08-25 | 2017-03-08 | 比亚迪股份有限公司 | Electromagnetic heater and its heating control circuit and control method |
| CN107167515A (en) * | 2017-07-18 | 2017-09-15 | 中国石油化工股份有限公司 | A kind of control method of quick constant current |
| CN107442283A (en) * | 2017-07-25 | 2017-12-08 | 长兴友邦电器有限公司 | A kind of safety-type high voltage power supply |
| CN108964438A (en) * | 2018-07-19 | 2018-12-07 | 中山大学 | Power initiation control device, method and ozone generating-device occur for a kind of ozone |
-
2009
- 2009-10-22 CN CN2009202376714U patent/CN201577031U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005221A (en) * | 2015-06-04 | 2015-10-28 | 中国科学院等离子体物理研究所 | Feedback control method for PSM high voltage power supply |
| CN106488600A (en) * | 2015-08-25 | 2017-03-08 | 比亚迪股份有限公司 | Electromagnetic heater and its heating control circuit and control method |
| CN106488600B (en) * | 2015-08-25 | 2019-11-22 | 比亚迪股份有限公司 | Electromagnetic heater and its heating control circuit and control method |
| CN107167515A (en) * | 2017-07-18 | 2017-09-15 | 中国石油化工股份有限公司 | A kind of control method of quick constant current |
| CN107442283A (en) * | 2017-07-25 | 2017-12-08 | 长兴友邦电器有限公司 | A kind of safety-type high voltage power supply |
| CN108964438A (en) * | 2018-07-19 | 2018-12-07 | 中山大学 | Power initiation control device, method and ozone generating-device occur for a kind of ozone |
| CN108964438B (en) * | 2018-07-19 | 2020-11-06 | 中山大学 | Ozone generation power supply start control device and method and ozone generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-frequency and high-voltage power supply control circuit Effective date of registration: 20111222 Granted publication date: 20100908 Pledgee: China Merchants Bank, Limited by Share Ltd, Foshan branch Pledgor: You Jin Registration number: 2011990000506 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130114 Granted publication date: 20100908 Pledgee: China Merchants Bank, Limited by Share Ltd, Foshan branch Pledgor: You Jin Registration number: 2011990000506 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: KELAN TECHNICS ENVIRONMENTAL PRODUCTS CO., LTD. Free format text: FORMER OWNER: YOU JIN Effective date: 20130325 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130325 Address after: 528000, Foshan, Guangdong Province Nanhai District Shishan Industrial Park Tong Tau Village environmental protection Polytron Technologies Inc Patentee after: Kelan Technics Environmental Products Co., Ltd. Address before: 528000 No. 92, Rainbow Road, Chancheng District, Guangdong, Foshan 1003 Patentee before: You Jin |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
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| CX01 | Expiry of patent term |