CN108539969A - A kind of shock resistance protective loop of use in driving power - Google Patents
A kind of shock resistance protective loop of use in driving power Download PDFInfo
- Publication number
- CN108539969A CN108539969A CN201810383033.7A CN201810383033A CN108539969A CN 108539969 A CN108539969 A CN 108539969A CN 201810383033 A CN201810383033 A CN 201810383033A CN 108539969 A CN108539969 A CN 108539969A
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- China
- Prior art keywords
- resistance
- driving power
- circuit
- capacitance
- output end
- Prior art date
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- 230000001681 protective effect Effects 0.000 title claims abstract description 18
- 230000035939 shock Effects 0.000 title claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
Abstract
The shock resistance protective loop that the present invention provides a kind of uses in driving power; including EMI filter circuits, rectifier bridge BD1, the anti-interference blanking circuit of surge absoption and driving power circuit; the input of the EMI filter circuits terminates alternating current; the output end of the EMI filter circuits is connect with the ac input end of the rectifier bridge BD1; the DC output end of the rectifier bridge BD1 is connect with the input terminal in the anti-interference blanking circuit of the surge absoption, and the output end in the anti-interference blanking circuit of surge absoption is connect with the LED drive power circuit.The beneficial effects of the invention are as follows：The anti-interference and impact capacity for improving driving power makes to need the electric appliance of driving power can be worked normally in the case where input condition compares harsh conditions, improves the reliability of product.
Description
Technical field
The shock resistance protective loop that the present invention relates to driving powers more particularly to a kind of use in driving power.
Background technology
The anti-interference and impact capacity of conventional ADS driving power supply is relatively low, makes the electric appliance for needing driving power（Such as LED light）
Input condition compares can not work normally under harsh conditions, make electric appliance（Such as LED light or light bulb）Service life shorter failure occur
Rate is high.
Invention content
In order to solve the problems in the prior art, the shock resistance protection that the present invention provides a kind of uses in driving power
Circuit.
The shock resistance protective loop that the present invention provides a kind of uses in driving power, including EMI filter circuits, rectification
The input of the anti-interference blanking circuit of bridge BD1, surge absoption and driving power circuit, the EMI filter circuits terminates alternating current, described
The output end of EMI filter circuits is connect with the ac input end of the rectifier bridge BD1, the DC output end of the rectifier bridge BD1
Connect with the input terminal in the anti-interference blanking circuit of the surge absoption, the output end in the anti-interference blanking circuit of surge absoption with
The LED drive power circuit connection.
As a further improvement on the present invention, the driving power circuit includes PWM signal generator, DC/DC converters
With output rectification filter circuit, the output end in the anti-interference blanking circuit of surge absoption respectively with the PWM signal generator
VCC input pins, DC/DC converters input terminal connection, the PWM signal generator connect with the DC/DC converters,
The output end of the DC/DC converters is connect with the input terminal in the output rectification filter circuit.
As a further improvement on the present invention, the driving power circuit is LED drive power circuit, the output rectification
The output end of filter circuit is connected with LED bulb illuminator.
As a further improvement on the present invention, the anti-interference blanking circuit of the surge absoption include inductance L1, diode D7,
Resistance R32, resistance R36, capacitance CE4, capacitance C10, wherein the direct current of a termination rectifier bridge BD1 of the inductance L1 is defeated
The other end of outlet, the inductance L1 is connect with the anode of the diode D7, resistance R32, resistance R36, capacitance C10 respectively,
The diode D7, resistance R32, resistance R36 are in parallel, the resistance R36, capacitance CE4 series connection, the capacitance C10 with it is described
Resistance R36, capacitance CE4 are in parallel, and the cathode of the diode D7 is connect with the VCC input pins of the PWM signal generator.
As a further improvement on the present invention, the anode of the capacitance CE4 is connect with the resistance R36, the capacitance CE4
Cathode ground connection.
As a further improvement on the present invention, the cathode of the diode D7 and the VCC of the PWM signal generator are inputted
Resistance R33, resistance R8, resistance R9, resistance R10 are in series between pin.
The beneficial effects of the invention are as follows：Through the above scheme, circuit of the present invention utilizes inductive drop advanced and capacitance current
Advanced principle, the anti-interference blanking circuit of one surge absoption of setting after rectifier bridge BD1 are anti-interference by the surge absoption
Blanking circuit absorbs the high-voltage pulse signal eliminated and be mixed in input, improves the anti-interference and impact capacity of driving power, makes
It needs the electric appliance of driving power that can be worked normally in the case where input condition compares harsh conditions, improves the reliability of product.
Description of the drawings
Fig. 1 is a kind of functional block diagram of shock resistance protective loop of the use of the present invention in driving power.
Fig. 2 is that a kind of anti-interference blanking of surge absoption of shock resistance protective loop of the use of the present invention in driving power is returned
The circuit diagram on road.
Fig. 3 is a kind of circuit diagram of shock resistance protective loop of the use of the present invention in driving power.
Specific implementation mode
The invention will be further described for explanation and specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, shock resistance protective loop of a kind of use in driving power, including EMI filter circuits
101, the anti-interference blanking circuit 102 of rectifier bridge BD1, surge absoption and driving power circuit, the present invention is with LED drive power circuit
For illustrate, the inputs of the EMI filter circuits 101 terminates alternating current, the output end of the EMI filter circuits 101 and institute
State the ac input end connection of rectifier bridge BD1, DC output end and the anti-interference blanking of the surge absoption of the rectifier bridge BD1
The input terminal in circuit 101 connects, the output end and LED drive power electricity in the anti-interference blanking circuit of the surge absoption 101
Road connects.
As shown in Figure 1 to Figure 3, the LED drive power circuit includes PWM signal generator 103, DC/DC converters 104
With output rectification filter circuit 105, the output end in the anti-interference blanking circuit of the surge absoption 102 respectively with the pwm signal
The input terminal connection of the VCC input pins of generator 103, DC/DC converters 104, the PWM signal generator 103 with it is described
DC/DC converters 104 connect, the input of the output end of the DC/DC converters 104 and the output rectification filter circuit 105
End connection.
As shown in Figure 1 to Figure 3, the output end in the output rectification filter circuit 105 is connected with LED bulb illuminator 106.
As shown in Figure 1 to Figure 3, the anti-interference blanking circuit 102 of the surge absoption includes inductance L1, diode D7, resistance
R32, resistance R36, capacitance CE4, capacitance C10, wherein the DC output end of a termination rectifier bridge BD1 of the inductance L1,
The other end of the inductance L1 is connect with the anode of the diode D7, resistance R32, resistance R36, capacitance C10 respectively, and described two
Pole pipe D7, resistance R32, resistance R36 are in parallel, the resistance R36, capacitance CE4 series connection, the capacitance C10 and the resistance
R36, capacitance CE4 are in parallel, and the cathode of the diode D7 is connect with the VCC input pins of the PWM signal generator.
As shown in Figure 1 to Figure 3, the anode of the capacitance CE4 is connect with the resistance R36, and the cathode of the capacitance CE4 connects
Ground.
As shown in Figure 1 to Figure 3, between the cathode of the diode D7 and the VCC input pins of the PWM signal generator
It is in series with resistance R33, resistance R8, resistance R9, resistance R10.
A kind of operation principle of shock resistance protective loop of the use provided by the invention in driving power is：
When standard alternating current or the input voltage waveform to distort by HID ballast output, and it is added in 50-200Hz voltage fundamental frequencies
On high impulse interference signal, by the fuse F1 of input terminal, fuse F2, bi-directional voltage stabilizing diode MOV1, inductance LF1,
Resistance R1, resistance R2, resistance R3, capacitance CX1, inductance LF2, bi-directional voltage stabilizing diode MOV2 constitute the most basic EMI filters of prime
Wave circuit 101 makes the voltage of input by providing the energy, high-voltage pulse letter to rear class transformation loop after rectifier bridge BD1 rectifications
EMI filter circuits 101 that number can be Jing Guo prime by rectifier bridge BD1 interfere with the converter of rear class, make its operation irregularity.
Circuit of the present invention is using inductive drop is advanced and the advanced principle of capacitance current, after rectifier bridge BD1, mainly by inductance L1,
Diode D7, resistance R32, resistance R36, capacitance CE4 cooperation capacitance C10 constitute the anti-interference blanking circuit of a surge absoption 102
（Also known as high-voltage pulse absorbs blanking circuit）, the high-voltage pulse signal for being mixed in input inhaled in this circuit by capacitance CE4 substantially
Receipts are fallen, and since the capacity of capacitance CE4 is a constant, when continuous pulse constantly absorbs, can break through the capacity model of capacitance CE4
It encloses, makes its damage, the electricity of capacitance CE4 anodes is put into the VCC of the chip of PWM signal generator by resistance R33, R8, R9, R10
Input pin forms a voltage and releases access, so that the capacity of capacitance CE4 is not mutated, circuit can long-term work.Do not having
There are two resistance R32, R36 when high-voltage pulse input with diode D7 and together to form a balance bridge, by capacitance
The electricity of CE4 storages is played back to positive pole and gives DC/DC converters altogether.Since LED illumination lamp requires PF values, this time is added
PF values are not influenced after road.
A kind of shock resistance protective loop of the use provided by the invention in driving power is suitable for LED illumination driving electricity
Protective loop control on source, improves the anti-interference and impact capacity of LED light, makes LED light in the more severe feelings of input condition
It can be worked normally under condition, make LED lamp（Light bulb）Longer life expectancy, product use scope is wider after increasing the circuit.By the electricity
Road is added to converter prime, can be widely used in the power supply product in need for improving lightning protection Anti-surging, be suitable for all need
The electric appliance for the driving power wanted.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (6)
1. a kind of shock resistance protective loop of use in driving power, it is characterised in that：Including EMI filter circuits, rectifier bridge
The input of the anti-interference blanking circuit of BD1, surge absoption and driving power circuit, the EMI filter circuits terminates alternating current, described
The output end of EMI filter circuits is connect with the ac input end of the rectifier bridge BD1, the DC output end of the rectifier bridge BD1
Connect with the input terminal in the anti-interference blanking circuit of the surge absoption, the output end in the anti-interference blanking circuit of surge absoption with
The driving power circuit connection.
2. shock resistance protective loop of the use according to claim 1 in driving power, it is characterised in that：The driving
Power circuit includes PWM signal generator, DC/DC converters and output rectification filter circuit, and the surge absoption is anti-interference to disappear
The output end in hidden circuit is connect with the input terminal of the VCC input pins of the PWM signal generator, DC/DC converters respectively, institute
It states PWM signal generator to connect with the DC/DC converters, the output end of the DC/DC converters is filtered with the output rectification
The input terminal in wave circuit connects.
3. shock resistance protective loop of the use according to claim 2 in driving power, it is characterised in that：It is described
Driving power circuit is driving power circuit described in LED, and the output end in the output rectification filter circuit is connected with LED light and is soaked
Body of light.
4. shock resistance protective loop of the use according to claim 2 in driving power, it is characterised in that：The surge
It includes inductance L1, diode D7, resistance R32, resistance R36, capacitance CE4, capacitance C10 to absorb anti-interference blanking circuit, wherein institute
State the DC output end of a termination rectifier bridge BD1 of inductance L1, the other end of the inductance L1 respectively with the diode
The anode of D7, resistance R32, resistance R36, capacitance C10 connections, the diode D7, resistance R32, resistance R36 are in parallel, described
Resistance R36, capacitance CE4 series connection, the capacitance C10 is in parallel with the resistance R36, capacitance CE4, the cathode of the diode D7 and
The VCC input pins of the PWM signal generator connect.
5. shock resistance protective loop of the use according to claim 4 in driving power, it is characterised in that：The capacitance
The anode of CE4 is connect with the resistance R36, the cathode ground connection of the capacitance CE4.
6. shock resistance protective loop of the use according to claim 4 in driving power, it is characterised in that：Two pole
Resistance R33, resistance R8, resistance R9, electricity are in series between the cathode of pipe D7 and the VCC input pins of the PWM signal generator
Hinder R10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383033.7A CN108539969B (en) | 2018-04-26 | 2018-04-26 | Impact-resistant protection circuit used on driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383033.7A CN108539969B (en) | 2018-04-26 | 2018-04-26 | Impact-resistant protection circuit used on driving power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108539969A true CN108539969A (en) | 2018-09-14 |
| CN108539969B CN108539969B (en) | 2024-04-16 |
Family
ID=63479177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810383033.7A Active CN108539969B (en) | 2018-04-26 | 2018-04-26 | Impact-resistant protection circuit used on driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108539969B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59148567A (en) * | 1983-02-15 | 1984-08-25 | Matsushita Electric Works Ltd | Power source device |
| JPH07274531A (en) * | 1994-03-31 | 1995-10-20 | Toshiba Lighting & Technol Corp | Power system, discharge lamp lighting device, and lighting system |
| CN201774468U (en) * | 2010-03-01 | 2011-03-23 | 汤征宁 | Voltage dropping circuit with capacitor for filtering waves by using inducer |
| CN102026448A (en) * | 2010-11-01 | 2011-04-20 | 王子能 | LED power circuit |
| CN102917511A (en) * | 2012-11-06 | 2013-02-06 | 黄山乾龙电器有限公司 | Anti-lightning type LED (Light Emitting Diode) power supply |
| CN204697354U (en) * | 2015-06-23 | 2015-10-07 | 成都亿信标准认证集团有限公司 | Antisurge LED power circuit |
| CN205029930U (en) * | 2015-09-29 | 2016-02-10 | 宁波龙源照明电器有限公司 | Stroboscopic LED driver is removed to wide voltage high efficiency of 9 -48V scope |
| CN205946249U (en) * | 2016-07-11 | 2017-02-08 | 深圳飞德利照明科技有限公司 | Anti thunderbolt surge current keeps apart LED drive power supply |
| CN206712456U (en) * | 2017-03-17 | 2017-12-05 | 深圳市瑞旺光电科技有限公司 | LED power protection against lightning strikes circuit |
| CN107749665A (en) * | 2017-11-29 | 2018-03-02 | 国网上海市电力公司 | A kind of locking power supply uninterrupted power supply device and its application process |
| CN208433909U (en) * | 2018-04-26 | 2019-01-25 | 王俊 | A kind of shock resistance protective loop of use in driving power |
-
2018
- 2018-04-26 CN CN201810383033.7A patent/CN108539969B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59148567A (en) * | 1983-02-15 | 1984-08-25 | Matsushita Electric Works Ltd | Power source device |
| JPH07274531A (en) * | 1994-03-31 | 1995-10-20 | Toshiba Lighting & Technol Corp | Power system, discharge lamp lighting device, and lighting system |
| CN201774468U (en) * | 2010-03-01 | 2011-03-23 | 汤征宁 | Voltage dropping circuit with capacitor for filtering waves by using inducer |
| CN102026448A (en) * | 2010-11-01 | 2011-04-20 | 王子能 | LED power circuit |
| CN102917511A (en) * | 2012-11-06 | 2013-02-06 | 黄山乾龙电器有限公司 | Anti-lightning type LED (Light Emitting Diode) power supply |
| CN204697354U (en) * | 2015-06-23 | 2015-10-07 | 成都亿信标准认证集团有限公司 | Antisurge LED power circuit |
| CN205029930U (en) * | 2015-09-29 | 2016-02-10 | 宁波龙源照明电器有限公司 | Stroboscopic LED driver is removed to wide voltage high efficiency of 9 -48V scope |
| CN205946249U (en) * | 2016-07-11 | 2017-02-08 | 深圳飞德利照明科技有限公司 | Anti thunderbolt surge current keeps apart LED drive power supply |
| CN206712456U (en) * | 2017-03-17 | 2017-12-05 | 深圳市瑞旺光电科技有限公司 | LED power protection against lightning strikes circuit |
| CN107749665A (en) * | 2017-11-29 | 2018-03-02 | 国网上海市电力公司 | A kind of locking power supply uninterrupted power supply device and its application process |
| CN208433909U (en) * | 2018-04-26 | 2019-01-25 | 王俊 | A kind of shock resistance protective loop of use in driving power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108539969B (en) | 2024-04-16 |
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