CN109275231A - A kind of protection control circuit of Anti-surging impact or current break - Google Patents
A kind of protection control circuit of Anti-surging impact or current break Download PDFInfo
- Publication number
- CN109275231A CN109275231A CN201811254960.5A CN201811254960A CN109275231A CN 109275231 A CN109275231 A CN 109275231A CN 201811254960 A CN201811254960 A CN 201811254960A CN 109275231 A CN109275231 A CN 109275231A
- Authority
- CN
- China
- Prior art keywords
- circuit
- transformer
- filtering
- control circuit
- primary side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a kind of impact of Anti-surging or the protection control circuits of current break, including transformer, one termination em filtering/rectification circuit of the primary side of transformer, em filtering/rectification circuit connects the firewire and zero curve of alternating current, the primary side junction connection control circuit of em filtering/rectification circuit and transformer, the other end of transformer primary side is by connecing the drain electrode of switching tube, the grid grade connection control circuit of switching tube, the source level of switching tube connects sample circuit, the ground terminal of sample circuit is grounded, sample circuit connects control circuit by reversed current feed circuit, the secondary of transformer flanks rectifying/filtering circuit, rectifying/filtering circuit connects the positive terminals of load and the negative terminals of load, the both ends of feed circuit are connected in parallel with a capacitor.Above structure can protect entire circuit normal operation to avoid device failures such as the switching tubes of circuit.
Description
Technical field
The present invention relates to circuit fields, particularly, are related to the protection control circuit of a kind of impact of Anti-surging or current break.
Background technique
Only for LED illumination lamp under thunder and lightning environment, or under the harmonic wave and surge impact of high energy, spoilage is very high at present,
That is up to the present puzzlement LED illumination promotes and applies most fatal reason, has arrived difficulty extremely to be solved too impatient to wait
Topic.Once LED drive power and the experience of entire illuminator are struck by lightning or under the harmonic wave and surge impact of high energy, are driven by LED
Generation moment high energy surge between input terminal L, N line of dynamic power supply, scurries into the route of LED drive power, LED is caused to drive
The main circuit device of dynamic power supply, such as switching tube, rectifier diode are impacted and punch through damage by instantaneous large-current.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of impact of Anti-surging or the protection of current break control electricity
Road.
The technical solution adopted by the present invention to solve the technical problems is:
The protection control circuit of a kind of impact of Anti-surging or current break, including transformer, the primary side of the transformer
A termination em filtering/rectification circuit, the em filtering/rectification circuit connects the firewire and zero curve of alternating current, the electromagnetism filter
The primary side junction connection control circuit of wave/rectification circuit and transformer, the other end of the transformer primary side is by connecing out
The drain electrode of pipe, the grid grade connection control circuit of switching tube are closed, the source level of switching tube connects sample circuit, the ground terminal of the sample circuit
Ground connection, the sample circuit connect control circuit by reversed current feed circuit, and the secondary of the transformer flanks rectification/filtered electrical
Road, the rectifying/filtering circuit connect the positive terminals of load and the negative terminals of load, the both ends parallel connection one of the feed circuit
A capacitor.
Preferably, the junction of control circuit and feed circuit is connected to the ground terminal of sample circuit by ground capacity, adds
The reaction speed of fast control circuit.
Preferably, ground capacity can filter noise, and the capacitance of the capacitor is bigger than the capacitance of ground capacity, more quickly
So that control circuit is sensed overcurrent and is reacted in time.
The utility model has the advantages that
By above scheme it is found that sample circuit connects control circuit by feed circuit, feed circuit both ends are one in parallel
Capacitor.In surge impact, the overcurrent of generation when passing through feed circuit by the capacitor of feed circuit both ends parallel connection, in this way
Control circuit can be allowed quickly to sense the presence of overcurrent, and make and timely reacting, the switching tube of circuit is avoided to damage,
Protect entire circuit normal operation.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of embodiment of the invention；
Fig. 2 is another embodiment of the invention；
Fig. 3 is the concrete application of the present invention in circuit.
Specific embodiment
Referring to Fig.1, a kind of embodiment of the invention provides a kind of impact of Anti-surging or the protection of current break control electricity
Road, including transformer T, a termination em filtering/rectification circuit 1 of the primary side of the transformer T, the em filtering/whole
Current circuit 1 meets the firewire L of alternating current and zero curve N, the primary side junction of the em filtering/rectification circuit 1 and transformer T connect control
Circuit 2 processed, the other end of the transformer T primary side is by connecing the drain electrode of switching tube Q, the grid grade connection control circuit of switching tube Q
1, the source level of switching tube Q connects sample circuit 3, the ground terminal ground connection of the sample circuit 3, and the sample circuit 3 passes through reversed feedback
Circuit 5 connects control circuit 2, and the secondary of the transformer T flanks rectifying/filtering circuit 4, and the rectifying/filtering circuit 4 connects negative
The negative terminals LED- of the positive terminals LED+ and load that carry, the both ends of the feed circuit 5 are connected in parallel with a capacitor C.
The junction of control circuit 2 and feed circuit 5 is connected to the ground terminal of sample circuit 3, ground connection by ground capacity C1
Capacitor can filter noise, accelerate the reaction speed of control circuit 2
The capacitance of the capacitor C is bigger than the capacitance of ground capacity C1, and control circuit 2 is more quickly made to sense overcurrent
And it reacts in time.
Sample circuit 3 connects control circuit 2 by feed circuit 5, and 5 both ends of feed circuit are connected in parallel with a capacitor C.In surge
When impact, the capacitor C of the overcurrent of generation when passing through feed circuit 5 by the parallel connection of 5 both ends of feed circuit can allow control in this way
Circuit 2 quickly senses the presence of overcurrent, and force switch pipe Q is closed or adjustment duty ratio, avoids the switch of circuit
Pipe Q damage, protects entire circuit normal operation.
Transformer primary side can connect one or more circuits with sample circuit in the technical program, as shown in Fig. 2,
Capacitor C2 and capacitor C3 is respectively the capacitor of two feed circuit both ends parallel connections.
As long as the circuit being connected with transformer primary side is connected by feed circuit with sample circuit, so that it may use this skill
The form of feed circuit shunt capacitance guarantees that switching tube in circuit or rectifier diode will not be because of surge impacts in art scheme
And it damages.
Fig. 3 is the concrete application of the technical program in circuit.
The above only better embodiment of the invention, but the present invention is not limited to above-described embodiments, if its with
Any same or similar means reach technical effect of the invention, should all fall under the scope of the present invention.
Claims (3)
1. the protection control circuit of a kind of Anti-surging impact or current break, including transformer, the primary side of the transformer
One termination em filtering/rectification circuit, the em filtering/rectification circuit connect the firewire and zero curve of alternating current, and the em filtering/
The primary side junction connection control circuit of rectification circuit and transformer, the other end of the transformer primary side is by connecing switching tube
Drain electrode, the grid grade connection control circuit of switching tube, the source level of switching tube connect sample circuit described in sample circuit ground terminal ground connection,
The sample circuit connects control circuit by reversed current feed circuit, and the secondary of the transformer flanks rectifying/filtering circuit, described
Rectifying/filtering circuit connects the positive terminals of load and the negative terminals of load, it is characterised in that: the both ends of the feed circuit are simultaneously
Join a capacitor.
2. the protection control circuit of a kind of Anti-surging impact according to claim 1 or current break, it is characterised in that: control
The junction of circuit and feed circuit processed is connected to the ground terminal of sample circuit by ground capacity.
3. the protection control circuit of a kind of Anti-surging impact according to claim 2 or current break, it is characterised in that: institute
The capacitance for stating capacitor is bigger than the capacitance of ground capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811254960.5A CN109275231B (en) | 2018-10-26 | 2018-10-26 | Protection control circuit for preventing surge impact or current abrupt change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811254960.5A CN109275231B (en) | 2018-10-26 | 2018-10-26 | Protection control circuit for preventing surge impact or current abrupt change |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109275231A true CN109275231A (en) | 2019-01-25 |
| CN109275231B CN109275231B (en) | 2024-03-19 |
Family
ID=65194341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811254960.5A Active CN109275231B (en) | 2018-10-26 | 2018-10-26 | Protection control circuit for preventing surge impact or current abrupt change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109275231B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060001135A (en) * | 2004-06-30 | 2006-01-06 | 삼성전기주식회사 | Adapter with improved surge protection function |
| CN102083249A (en) * | 2009-11-30 | 2011-06-01 | 康佳集团股份有限公司 | LED (light-emitting diode) lighting circuit |
| CN203590550U (en) * | 2013-11-06 | 2014-05-07 | 江苏石诺节能科技股份有限公司 | Large-power LED lamp realized by adopting voltage-isolated fly-back controller |
| CN106341047A (en) * | 2016-08-09 | 2017-01-18 | 张超莲 | Practical switching power supply |
| WO2017097002A1 (en) * | 2015-12-09 | 2017-06-15 | 深圳欧陆通电子有限公司 | Anti-surge switching power supply and anti-surge circuit |
| CN209488861U (en) * | 2018-10-26 | 2019-10-11 | 佛山市华全电气照明有限公司 | A kind of protection control circuit of Anti-surging impact or current break |
-
2018
- 2018-10-26 CN CN201811254960.5A patent/CN109275231B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060001135A (en) * | 2004-06-30 | 2006-01-06 | 삼성전기주식회사 | Adapter with improved surge protection function |
| CN102083249A (en) * | 2009-11-30 | 2011-06-01 | 康佳集团股份有限公司 | LED (light-emitting diode) lighting circuit |
| CN203590550U (en) * | 2013-11-06 | 2014-05-07 | 江苏石诺节能科技股份有限公司 | Large-power LED lamp realized by adopting voltage-isolated fly-back controller |
| WO2017097002A1 (en) * | 2015-12-09 | 2017-06-15 | 深圳欧陆通电子有限公司 | Anti-surge switching power supply and anti-surge circuit |
| CN106341047A (en) * | 2016-08-09 | 2017-01-18 | 张超莲 | Practical switching power supply |
| CN209488861U (en) * | 2018-10-26 | 2019-10-11 | 佛山市华全电气照明有限公司 | A kind of protection control circuit of Anti-surging impact or current break |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109275231B (en) | 2024-03-19 |
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