CN208433909U - 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
- CN208433909U CN208433909U CN201820605227.2U CN201820605227U CN208433909U CN 208433909 U CN208433909 U CN 208433909U CN 201820605227 U CN201820605227 U CN 201820605227U CN 208433909 U CN208433909 U CN 208433909U
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- resistance
- driving power
- circuit
- capacitor
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Abstract
The utility model provides a kind of shock resistance protective loop of use in driving power; including EMI filter circuit, rectifier bridge BD1, the anti-interference blanking circuit of surge absoption and driving power circuit; the input of the EMI filter circuit terminates alternating current; the output end of the EMI filter circuit 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 utility model are: improving the anti-interference and impact capacity of driving power, it can work normally the electric appliance for needing driving power in the case where input condition compares harsh conditions, improve the reliability of product.
Description
Technical field
The shock resistance protective loop that the utility model relates to driving powers more particularly to a kind of use in driving power.
Background technique
The anti-interference and impact capacity of conventional ADS driving power supply is lower, and the electric appliance (such as LED light) for needing driving power is made to exist
Input condition compares can not work normally under harsh conditions, and the service life of electric appliance (such as LED light or light bulb) shorter failure occurs
Rate is high.
Summary of the invention
In order to solve the problems in the prior art, the utility model provides a kind of shock resistance of use in driving power
Protective loop.
The utility model provides a kind of shock resistance protective loop of use in driving power, including EMI filter circuit,
The input of the anti-interference blanking circuit of rectifier bridge BD1, surge absoption and driving power circuit, the EMI filter circuit terminates alternating current,
The output end of the EMI filter circuit is connect with the ac input end of the rectifier bridge BD1, and the direct current of the rectifier bridge BD1 is defeated
Outlet is connect with the input terminal in the anti-interference blanking circuit of the surge absoption, the output in the anti-interference blanking circuit of surge absoption
End is connect with the LED drive power circuit.
The driving power circuit includes PWM signal generator, DC/DC change as a further improvement of the utility model,
Parallel operation and output rectification filter circuit, the output end in the anti-interference blanking circuit of surge absoption are sent out with the pwm signal respectively
The input terminal connection of the VCC input pin, DC/DC converter of raw device, the PWM signal generator and the DC/DC converter
Connection, the output end of the DC/DC converter are connect with the input terminal in the output rectification filter circuit.
The driving power circuit is LED drive power circuit, the output as a further improvement of the utility model,
The output end of rectification filtering circuit is connected with LED bulb illuminator.
The anti-interference blanking circuit of the surge absoption includes inductance L1, two poles as a further improvement of the utility model,
Pipe D7, resistance R32, resistance R36, capacitor CE4, capacitor C10, wherein a termination rectifier bridge BD1's of the inductance L1 is straight
Output end is flowed, the other end of the inductance L1 connects with the anode of the diode D7, resistance R32, resistance R36, capacitor C10 respectively
It connects, the diode D7, resistance R32, resistance R36 are in parallel, the resistance R36, capacitor CE4 series connection, the capacitor C10 and institute
Resistance R36, capacitor CE4 parallel connection are stated, the cathode of the diode D7 is connect with the VCC input pin of the PWM signal generator.
The anode of the capacitor CE4 is connect with the resistance R36 as a further improvement of the utility model, the electricity
Hold the cathode ground connection of CE4.
The VCC of the cathode of the diode D7 and the PWM signal generator as a further improvement of the utility model,
Resistance R33, resistance R8, resistance R9, resistance R10 are in series between input pin.
The beneficial effects of the utility model are: through the above scheme, the utility model circuit using inductive drop in advance and
The advanced principle of capacitance current, the anti-interference blanking circuit of one surge absoption of setting after rectifier bridge BD1, is inhaled by the surge
It receives anti-interference blanking circuit and absorbs the high-voltage pulse signal eliminated and be mixed in input, improve the anti-interference of driving power and impact
Ability can work normally the electric appliance for needing driving power in the case where input condition compares harsh conditions, improve the reliable of product
Property.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of shock resistance protective loop of the use of the utility model in driving power.
Fig. 2, which is that a kind of surge absoption of shock resistance protective loop of the use of the utility model in driving power is anti-interference, to disappear
The circuit diagram in hidden circuit.
Fig. 3 is a kind of circuit diagram of shock resistance protective loop of the use of the utility model in driving power.
Specific embodiment
The utility model is described in further detail for explanation and specific embodiment with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, shock resistance protective loop of a kind of use in driving power, including EMI filter circuit
101, the anti-interference blanking circuit 102 of rectifier bridge BD1, surge absoption and driving power circuit, the utility model is with LED drive power
It is illustrated for circuit, the input of the EMI filter circuit 101 terminates alternating current, the output end of the EMI filter circuit 101
It is connect with the ac input end of the rectifier bridge BD1, the DC output end and the surge absoption of the rectifier bridge BD1 is anti-interference
The input terminal in blanking circuit 101 connects, the output end in the anti-interference blanking circuit 101 of surge absoption and LED driving electricity
Source circuit connection.
As shown in Figure 1 to Figure 3, the LED drive power circuit includes PWM signal generator 103, DC/DC converter 104
With output rectification filter circuit 105, the output end in the anti-interference blanking circuit 102 of surge absoption respectively with the pwm signal
The input terminal connection of the VCC input pin of generator 103, DC/DC converter 104, the PWM signal generator 103 with it is described
DC/DC converter 104 connects, the input of the output end of the DC/DC converter 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, capacitor CE4, capacitor 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, capacitor C10 respectively, and described two
Pole pipe D7, resistance R32, resistance R36 are in parallel, the resistance R36, capacitor CE4 series connection, the capacitor C10 and the resistance
R36, capacitor CE4 are in parallel, and the cathode of the diode D7 is connect with the VCC input pin of the PWM signal generator.
As shown in Figure 1 to Figure 3, the anode of the capacitor CE4 is connect with the resistance R36, and the cathode of the capacitor CE4 connects
Ground.
As shown in Figure 1 to Figure 3, between the cathode of the diode D7 and the VCC input pin of the PWM signal generator
It is in series with resistance R33, resistance R8, resistance R9, resistance R10.
A kind of working principle of shock resistance protective loop of the use provided by the utility model in driving power are as follows:
When standard alternating current or the input voltage waveform to distort by HID ballast output, and it is added in 50-200Hz voltage
High impulse interference signal on fundamental frequency, by the fuse F1 of input terminal, fuse F2, bi-directional voltage stabilizing diode MOV1, inductance
LF1, resistance R1, resistance R2, resistance R3, capacitor CX1, inductance LF2, bi-directional voltage stabilizing diode MOV2 composition prime are most basic
EMI filter circuit 101 makes the voltage of input provide the energy, high-tension pulse to rear class transformation loop after rectifier bridge BD1 rectification
Rush signal can the EMI filter circuit 101 Jing Guo prime interfere with by rectifier bridge BD1 the converter of rear class, make its work
It is abnormal.The utility model circuit is advanced using inductive drop and the advanced principle of capacitance current is mainly led to after rectifier bridge BD1
It crosses inductance L1, diode D7, resistance R32, resistance R36, capacitor CE4 cooperation capacitor C10 and constitutes that a surge absoption is anti-interference disappears
Hidden circuit 102(is also known as high-voltage pulse and absorbs blanking circuit), the high-voltage pulse signal of input is mixed in substantially in this circuit quilt
Capacitor CE4 is sponged, since the capacity of capacitor CE4 is that a constant can break through capacitor when continuous pulse constantly absorbs
The range of capacity of CE4 makes its damage, and the electricity of capacitor CE4 anode is put into PWM signal generator by resistance R33, R8, R9, R10
The VCC input pin of chip form a voltage and release access, be mutated the capacity of capacitor CE4 will not, circuit can be grown
Phase work.Two resistance R32, R36 when the input of no high-voltage pulse with diode D7 and together form one and put down
The capacitor CE4 electricity stored is played back to positive pole and gives DC/DC converter altogether by Heng Qiao.Since LED illumination lamp wants PF value
It asks, this circuit, which is added, does not later influence PF value.
A kind of shock resistance protective loop of the use provided by the utility model in driving power is suitable for LED illumination and drives
Protective loop control on dynamic power supply, improves the anti-interference and impact capacity of LED light, LED light is made to compare evil in input condition
It can be worked normally in bad situation, make LED lamp (light bulb) longer life expectancy, product use scope is wider after increasing the circuit.It will
The circuit 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 institute
The electric appliance of driving power in need.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (6)
1. a kind of shock resistance protective loop of use in driving power, it is characterised in that: including EMI filter circuit, rectifier bridge
The anti-interference blanking circuit of BD1, surge absoption and driving power circuit, the input of the EMI filter circuit terminates alternating current, described
The output end of EMI filter circuit 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 converter 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 pin of the PWM signal generator, DC/DC converter respectively, institute
It states PWM signal generator to connect with the DC/DC converter, the output end of the DC/DC converter and output rectification are filtered
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: the driving
Power circuit is driving power circuit described in LED, and the output end in the output rectification filter circuit is connected with LED bulb and shines
Body.
4. shock resistance protective loop of the use according to claim 2 in driving power, it is characterised in that: the surge
Absorbing anti-interference blanking circuit includes inductance L1, diode D7, resistance R32, resistance R36, capacitor CE4, capacitor C10, 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, capacitor C10 connection, the diode D7, resistance R32, resistance R36 are in parallel, described
Resistance R36, capacitor CE4 series connection, the capacitor C10 is in parallel with the resistance R36, capacitor CE4, the cathode of the diode D7 and
The VCC input pin of the PWM signal generator connects.
5. shock resistance protective loop of the use according to claim 4 in driving power, it is characterised in that: the capacitor
The anode of CE4 is connect with the resistance R36, the cathode ground connection of the capacitor 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 pin of the PWM signal generator
Hinder R10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605227.2U CN208433909U (en) | 2018-04-26 | 2018-04-26 | A kind of shock resistance protective loop of use in driving power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605227.2U CN208433909U (en) | 2018-04-26 | 2018-04-26 | A kind of shock resistance protective loop of use in driving power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433909U true CN208433909U (en) | 2019-01-25 |
Family
ID=65102874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820605227.2U Expired - Fee Related CN208433909U (en) | 2018-04-26 | 2018-04-26 | A kind of shock resistance protective loop of use in driving power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208433909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539969A (en) * | 2018-04-26 | 2018-09-14 | 王俊 | A kind of shock resistance protective loop of use in driving power |
-
2018
- 2018-04-26 CN CN201820605227.2U patent/CN208433909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539969A (en) * | 2018-04-26 | 2018-09-14 | 王俊 | A kind of shock resistance protective loop of use in driving power |
| CN108539969B (en) * | 2018-04-26 | 2024-04-16 | 王俊 | Impact-resistant protection circuit used on driving power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20190125 |