CN202309540U - High-frequency high-voltage power supply control circuit - Google Patents
High-frequency high-voltage power supply control circuit Download PDFInfo
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- CN202309540U CN202309540U CN2011202530165U CN201120253016U CN202309540U CN 202309540 U CN202309540 U CN 202309540U CN 2011202530165 U CN2011202530165 U CN 2011202530165U CN 201120253016 U CN201120253016 U CN 201120253016U CN 202309540 U CN202309540 U CN 202309540U
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Abstract
The utility model discloses a high-frequency high-voltage power supply control circuit which has a novel closed loop control structure, can real-timely adjust a power supply current and achieve the constant current power supply purpose. The high-frequency high-voltage power supply control circuit is also equipped with a plurality of fault detecting circuits, can detect the circuit operation conditions in time and prevent faults from generating to thereby guarantee the circuit normal work. The beneficial effects of the utility model are that the power supply mode of the high-frequency high-voltage power supply control circuit employs a double channel power supply, a high voltage current sampling circuit employs a double channel current sampling, and a pulse-width modulation (PWM) driving waveform is isolated by a high speed optical coupler and then drives a power switch tube; a whole machine fault feedback expansion port is added, so that users can trace the power supply operating condition real-timely and conveniently; the grounding wires of a strong current and a weak current are separated, a high voltage open circuit protection speed is fast, a major loop voltage sampling is obtained by using a resistor to sample the primary of a high-frequency transformer directly, and a power-up starting function is realized by employing an electronic dial switch. The high-frequency high-voltage power supply control circuit can be used in electrostatic flue dust treatment purifying equipment.
Description
Technical field
The utility model relates to a kind of control circuit, particularly relates to a kind of high-frequency high-voltage source control circuit.
Background technology
In daily life, business activity and industrial processes, can produce various oil smoke mists, the raising day by day of Along with people's environmental consciousness, various Smoke oil purification equipments are consequentiality also.Electrostatic type fume, cooking fume control equipment, it mainly is to utilize in the principle of Electrostatic Absorption molecule, will remove through oil smoke, the flue dust absorption of equipment, reaches to purify or filter effect.Electrostatic cleaning equipment need produce high-tension electricity; Through the high voltage source control circuit mains supply is carried out normally that conversion realizes; The present open loop type control mode that cleaning equipment adopted, the high voltage source control circuit carries out exporting the static electric field of high pressure to equipment after the conversion to civil power.Wherein the accessory power supply supply power mode adopts single service; Major loop and shared one road power supply power supply in protection loop; On-off mode adopts electric network source 220VAC, relay self-locking forceful electric power switching on and shutting down pattern; The high-tension current sample circuit adopts the single channel current sample, and shared No. one sample circuit is controlled in electric field short-circuit protection, high pressure open-circuit-protection, discharge prevention, constant current, the direct driving power switching tube of PWM drive waveforms.Because there is not complete machine fault feedback expansion mouth, the shared ground wire of forceful electric power and light current, high pressure open-circuit-protection speed is slow, and current transformer bus up-sampling behind bridge rectifier is adopted in the main circuit current sampling, and the electrifying startup function needs external connection.Like this, 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 probably.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
For addressing the above problem; The utility model provides a kind of closed loop controlling structure, can adjust supply current in real time, reaches constant current power supply purpose; But also be provided with the multichannel failure detector circuit; In time testing circuit ruuning situation prevents the generation of fault, guarantees the high-frequency high-voltage source control circuit of circuit operate as normal.
The utility model solves the technical scheme that its technical problem adopted: this high-frequency high-voltage source control circuit comprises a bridge rectifier filter circuit; Said bridge rectifier filter circuit is connected with half-bridge inversion circuit, high frequency transformer, high-tension current sample circuit, electric field charge/discharge control circuit, the concentrated control circuit of protection information, band soft start wave generator circuit, high speed photo coupling buffer circuit and inversion in turn and triggers the PWM drive circuit; Said inversion triggers the PWM drive circuit other end and is connected on the half-bridge inversion circuit, forms closed loop controlling structure.
Further as preferred embodiment; Another output of half-bridge inversion circuit is connected with the voltage signal sampling circuit; The voltage signal sampling circuit output end is connected with electric field circuit control circuit and high pressure open-circuit control circuit respectively, and the output of said electric field circuit control circuit and high pressure open-circuit control circuit is connected with the input of guard signal centralized control circuit respectively.
Further as preferred embodiment, another output of high-tension current sample circuit is connected with constant-current control circuit, and the output of constant-current control circuit is connected with the input of band soft start wave generator circuit.
Further as preferred embodiment, the input of said guard signal centralized control circuit is connected with temperature sensing circuit.
Further as preferred embodiment, the output of said guard signal centralized control circuit is connected with indication control circuit and each signal lamp in turn.
Further as preferred embodiment; This high-frequency high-voltage source control circuit also comprises a DC12V accessory power supply; The output of said DC12V accessory power supply is connected with the electronics toggle switch, and the output of said electronics toggle switch is connected with the input of band soft start wave generator circuit.
The beneficial effect of the utility model: the utility model major loop is supplied power with one road power supply separately with the protection loop; The PWM drive waveforms adopts high speed photo coupling to isolate the rear drive power switch pipe; Increase complete machine fault feedback expansion mouth, make things convenient for user real time that power supply ruuning situation is followed the tracks of.Contrast existing high voltage source control circuit, the utility model provides a kind of novel closed loop controlling structure, can adjust supply current in real time; Reach constant current power supply purpose, guarantee the high-frequency high-voltage source control circuit of circuit operate as normal, make power supply reliability more; Machine debugging is more convenient, and production efficiency is better, has reduced cost and failure rate; Easy to maintenance, guaranteed the equipment reliable operation.
The utility model adopts the accessory power supply supply power mode to adopt and supplies power with double circuit, and major loop is independent with the power supply of one road power supply with the protection loop, and DC12V electronic switch self-locking light current switching on and shutting down pattern is adopted on another road.The high-tension current sample circuit adopts the two-way current sample, electric field short-circuit protection, shared one tunnel sampling of high pressure open-circuit-protection, and shared No. one sample circuit is controlled in discharge prevention, constant current.Forceful electric power separates with weak ground connection, and high pressure open-circuit-protection speed is fast, and sampling module is directly sampled from high frequency transformer is elementary; The electrifying startup function adopts the electronics toggle switch; The multichannel failure detector circuit, in time testing circuit ruuning situation prevents the generation of fault.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Accompanying drawing is the theory diagram of the utility model high-frequency high-voltage source control circuit.
Embodiment
With reference to accompanying drawing; The high-frequency high-voltage source control circuit of the utility model comprises a bridge rectifier filter circuit 2; Said bridge rectifier filter circuit 2 is connected with half-bridge inversion circuit 4, high frequency transformer 5, high-tension current sample circuit 13, electric field charge/discharge control circuit 14, the concentrated control circuit 9 of protection information, band soft start wave generator circuit 6, high speed photo coupling buffer circuit 1 and inversion in turn and triggers PWM drive circuit 3; Said inversion triggers PWM drive circuit 3 other ends and is connected on the half-bridge inversion circuit 4, forms closed loop controlling structure.Half-bridge inversion circuit 4 another outputs are connected with voltage signal sampling circuit 16; Voltage signal sampling circuit 16 outputs are connected with electric field circuit control circuit 15 and high pressure open-circuit control circuit 17 respectively, and the output of said electric field circuit control circuit 15 and high pressure open-circuit control circuit 17 is connected with the input of guard signal centralized control circuit 9 respectively.High-tension current sample circuit 13 another outputs are connected with constant-current control circuit 12, and the output of constant-current control circuit 12 is connected with the input of band soft start wave generator circuit 6.The input of said guard signal centralized control circuit 9 is connected with temperature sensing circuit 8.The output of said guard signal centralized control circuit 9 is connected with indication control circuit 10 and each signal lamp 11 in turn.This high-frequency high-voltage source control circuit also comprises a DC12V accessory power supply, and the output of said DC12V accessory power supply is connected with the electronics toggle switch, and the output of said electronics toggle switch 7 is connected with the input of band soft start wave generator circuit 6.
Certainly; The invention is not limited to above-mentioned execution mode; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (6)
1. high-frequency high-voltage source control circuit; It is characterized in that: it comprises a bridge rectifier filter circuit (2); Said bridge rectifier filter circuit (2) is connected with half-bridge inversion circuit (4), high frequency transformer (5), high-tension current sample circuit (13), constant-current control circuit (12), band soft start wave generator circuit (6), high speed photo coupling buffer circuit (1) and inversion in turn and triggers PWM drive circuit (3); Said inversion triggers PWM drive circuit (3) output and is connected on the half-bridge inversion circuit (4), forms closed loop controlling structure.
2. a kind of high-frequency high-voltage source control circuit according to claim 1; It is characterized in that: another output of half-bridge inversion circuit (4) is connected with voltage signal sampling circuit (16); Voltage signal sampling circuit (16) output is connected with electric field circuit control circuit (15) and high pressure open-circuit control circuit (17) respectively, and the output of said electric field circuit control circuit (15) and high pressure open-circuit control circuit (17) is connected with the input of guard signal centralized control circuit (9) respectively.
3. a kind of high-frequency high-voltage source control circuit according to claim 1 and 2; It is characterized in that: another output of high-tension current sample circuit (13) is connected with electric field charge/discharge control circuit (14), and electric field charge/discharge control circuit (14) output is connected with the input of guard signal centralized control circuit (9).
4. a kind of high-frequency high-voltage source control circuit according to claim 2 is characterized in that: the input of said guard signal centralized control circuit (9) is connected with temperature sensing circuit (8).
5. a kind of high-frequency high-voltage source control circuit according to claim 2 is characterized in that: the output of said guard signal centralized control circuit (9) is connected with indication control circuit (10) and each signal lamp (11) in turn.
6. a kind of high-frequency high-voltage source control circuit according to claim 1; It is characterized in that: also comprise a DC12V accessory power supply; The output of said DC12V accessory power supply is connected with the electronics toggle switch (7) of electrifying startup, and the output of said electronics toggle switch (7) is connected with the input of band soft start wave generator circuit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202530165U CN202309540U (en) | 2011-07-18 | 2011-07-18 | High-frequency high-voltage power supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202530165U CN202309540U (en) | 2011-07-18 | 2011-07-18 | High-frequency high-voltage power supply control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309540U true CN202309540U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202530165U Expired - Fee Related CN202309540U (en) | 2011-07-18 | 2011-07-18 | High-frequency high-voltage power supply control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN202309540U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740582A (en) * | 2017-01-06 | 2017-05-31 | 北京新能源汽车股份有限公司 | A kind of control circuit of vehicle, vehicle-mounted Switching Power Supply adjuster and automobile |
| CN109847940A (en) * | 2019-01-23 | 2019-06-07 | 佛山市明伟达智能科技有限公司 | Static fume purifies driving power |
| CN110888080A (en) * | 2019-11-28 | 2020-03-17 | 南京汇凯顺电子科技有限公司 | High-power oil fume purification power supply and power supply short circuit and arc discharge identification method |
| CN113364133A (en) * | 2021-06-30 | 2021-09-07 | 江苏保丽洁环境科技股份有限公司 | System for monitoring high-voltage power supply and oil fume purifier with system |
-
2011
- 2011-07-18 CN CN2011202530165U patent/CN202309540U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740582A (en) * | 2017-01-06 | 2017-05-31 | 北京新能源汽车股份有限公司 | A kind of control circuit of vehicle, vehicle-mounted Switching Power Supply adjuster and automobile |
| CN106740582B (en) * | 2017-01-06 | 2019-04-09 | 北京新能源汽车股份有限公司 | A kind of vehicle-mounted Switching Power Supply adjuster and automobile |
| CN109847940A (en) * | 2019-01-23 | 2019-06-07 | 佛山市明伟达智能科技有限公司 | Static fume purifies driving power |
| CN110888080A (en) * | 2019-11-28 | 2020-03-17 | 南京汇凯顺电子科技有限公司 | High-power oil fume purification power supply and power supply short circuit and arc discharge identification method |
| CN113364133A (en) * | 2021-06-30 | 2021-09-07 | 江苏保丽洁环境科技股份有限公司 | System for monitoring high-voltage power supply and oil fume purifier with system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FOSHAN KELAN TECHNICS ENVIRONMENTAL PRODUCTS CO., Free format text: FORMER OWNER: YOU JIN Effective date: 20121023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121023 Address after: 528000 Guangdong city of Foshan Province town Tong Tau Village, Nanhai District Tagang (workshop, workshop workshop two, three) Patentee after: Foshan Ke LAN environmental protection equipment Co., Ltd. Address before: 528000 No. 92, Rainbow Road, Chancheng District, Guangdong, Foshan 1003 Patentee before: You Jin |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
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 Guangdong city of Foshan Province town Tong Tau Village, Nanhai District Tagang (workshop, workshop workshop two, three) Patentee before: Foshan Ke LAN environmental protection equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20200718 |