CN203233168U - Lighting-stroke protection and surge-protection circuit with simple structure - Google Patents
Lighting-stroke protection and surge-protection circuit with simple structure Download PDFInfo
- Publication number
- CN203233168U CN203233168U CN 201320261629 CN201320261629U CN203233168U CN 203233168 U CN203233168 U CN 203233168U CN 201320261629 CN201320261629 CN 201320261629 CN 201320261629 U CN201320261629 U CN 201320261629U CN 203233168 U CN203233168 U CN 203233168U
- Authority
- CN
- China
- Prior art keywords
- diode
- circuit
- surge
- negative pole
- lightning
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a lighting-stroke protection and surge-protection circuit with a simple structure, and the circuit comprises a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a capacitor, and a resistor. The capacitor is in series with the diode D1. The positive electrode of the diode D2 is connected with the positive electrode of the diode D1 and also grounded. Two terminals of the resistor are respectively connected to the negative electrode of the diode D1 and the negative electrode of the diode D2. The positive electrode of the diode D4 is connected to the negative electrode of the diode D3 and also connected to the negative electrode of the diode D2. The negative electrode of the diode D4 is connected to a VDD. The positive electrode of the diode D3 is grounded. The negative electrode and the positive electrode of the diode D5 are respectively connected to the negative electrode of the diode D4 and the positive electrode of the diode D3. The circuit is advantageous by dual function of surge protection and lightning protection, simple structure of the circuit, and low cost. Moreover, the circuit can be used in various electronic products and suitable for batch production.
Description
Technical field
The utility model relates to a kind of circuit, relates in particular a kind ofly simple in structure can prevent from simultaneously being struck by lightning and the circuit of surge.
Background technology
The strong pulse that electronic product can produce at that moment breath that power supply has just been opened, i.e. surge is because the non-linear pulse that might be higher than power supply itself of circuit itself; Perhaps disturb owing to other parts in power supply or the circuit are subjected to or external spike own, it makes circuit burning out in a flash at surge probably.And thunder and lightning also is extremely strong to the destructive power of electronic product.Especially be connected home appliance or office equipment on the power supply for those always, come off duty or night nobody the time, surge and thunder and lightning very easily damage it.Its inner anti-surge circuit of existing electronic equipment adopts gas discharge tube, piezo-resistance, inhibition diode and choking-winding etc., and its complex structure realizes that cost is higher.
The utility model content
The utility model provides a kind of and simple in structure can prevent from simultaneously being struck by lightning and the circuit of surge, and it has surge and the effect of thunder and lightning double protection, and circuit structure is simple, and is with low cost, can apply on the multiple electronic product, is fit to produce in enormous quantities.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind ofly simple in structure can prevent from simultaneously being struck by lightning and the circuit of surge, it comprises diode D1, diode D2, diode D3, diode D4, diode D5, electric capacity and resistance, described electric capacity and diode D1 are in parallel, the positive pole of described diode D2 links to each other with the positive pole of diode D1 and while ground connection, the two ends of described resistance are connected on the negative pole of the negative pole of diode D1 and diode D2, the positive pole of described diode D4 is connected on the negative pole of diode D3 and is connected simultaneously on the negative pole of diode D2, the negative pole of described diode D4 is connected on the VDD, the plus earth of described diode D3 is on the positive pole of the negative pole of described diode D5 and the anodal negative pole that is connected to diode D4 and diode D3.
Further technical scheme is:
Described diode D5 is voltage stabilizing didoe.
The Standard resistance range of described resistance is 500 ohm to 2000 ohm.
Described diode D4 and diode D5 are DF5A6.8FU.
In the utility model, electric capacity, resistance, diode D1 and diode D2 form the surge leadage circuit, and electric capacity plays cushioning effect, conducting was released when diode D1 increased at voltage, if surge is not released fully, then release again by resistance and diode D2, to ensure surge is released fully.Diode D3, diode D4, diode D5 constitute the thunder and lightning path of releasing, and it is released for thunder and lightning many paths are provided, and to ensure thunder and lightning is released fully.Diode D5 not only releases for thunder and lightning the path of releasing is provided, and it plays pressure stabilization function, with release electronic devices and components on the path of protection.
Compared with prior art, the beneficial effects of the utility model are:
1, circuit of the present utility model has thunder and lightning and surge double protection function, is applicable to most electronic product, can effectively thunder and lightning and surge be released fully, with the internal circuit of protection electronic product.
2, circuit of the present utility model adopts resistance, electric capacity and diode, and its result is simple, and components and parts cheap makes that its cost is low, is suitable for large-scale production.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
[embodiment]
As shown in Figure 1 a kind of simple in structure can prevent from being struck by lightning and the circuit of surge simultaneously, it comprises diode D1, diode D2, diode D3, diode D4, diode D5, electric capacity and resistance, described electric capacity and diode D1 are in parallel, the positive pole of described diode D2 links to each other with the positive pole of diode D1 and while ground connection, the two ends of described resistance are connected on the negative pole of the negative pole of diode D1 and diode D2, the positive pole of described diode D4 is connected on the negative pole of diode D3 and is connected simultaneously on the negative pole of diode D2, the negative pole of described diode D4 is connected on the VDD, the plus earth of described diode D3 is on the positive pole of the negative pole of described diode D5 and the anodal negative pole that is connected to diode D4 and diode D3.
Described diode D5 is voltage stabilizing didoe.
The Standard resistance range of described resistance is 500 ohm to 2000 ohm.
Described diode D4 and diode D5 are DF5A6.8FU.
Be embodiment of the present utility model as mentioned above.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (4)
1. one kind simple in structure can prevent from being struck by lightning and the circuit of surge simultaneously, it is characterized in that: it comprises diode D1, diode D2, diode D3, diode D4, diode D5, electric capacity and resistance, described electric capacity and diode D1 are in parallel, the positive pole of described diode D2 links to each other with the positive pole of diode D1 and while ground connection, the two ends of described resistance are connected on the negative pole of the negative pole of diode D1 and diode D2, the positive pole of described diode D4 is connected on the negative pole of diode D3 and is connected simultaneously on the negative pole of diode D2, the negative pole of described diode D4 is connected on the VDD, the plus earth of described diode D3 is on the positive pole of the negative pole of described diode D5 and the anodal negative pole that is connected to diode D4 and diode D3.
2. according to claim 1ly a kind ofly simple in structure can prevent from simultaneously being struck by lightning and the circuit of surge, it is characterized in that: described diode D5 be voltage stabilizing didoe.
3. according to claim 1ly a kind ofly simple in structure can prevent from simultaneously being struck by lightning and the circuit of surge, it is characterized in that: the Standard resistance range of described resistance be 500 ohm to 2000 ohm.
4. according to claim 1ly a kind ofly simple in structure can prevent from simultaneously being struck by lightning and the circuit of surge, it is characterized in that: described diode D4 and diode D5 be DF5A6.8FU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261629 CN203233168U (en) | 2013-05-15 | 2013-05-15 | Lighting-stroke protection and surge-protection circuit with simple structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261629 CN203233168U (en) | 2013-05-15 | 2013-05-15 | Lighting-stroke protection and surge-protection circuit with simple structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233168U true CN203233168U (en) | 2013-10-09 |
Family
ID=49289272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261629 Expired - Fee Related CN203233168U (en) | 2013-05-15 | 2013-05-15 | Lighting-stroke protection and surge-protection circuit with simple structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233168U (en) |
-
2013
- 2013-05-15 CN CN 201320261629 patent/CN203233168U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103166444B (en) | Remote turn-off control signal receiving circuit | |
| CN204423222U (en) | A kind of D.C. regulated power supply current foldback circuit | |
| CN203233159U (en) | MP3 player with electrostatic protection and surge protection | |
| CN203859489U (en) | Current limiting protection circuit | |
| CN203233167U (en) | USB flash disk with lightning-protection function | |
| CN203233168U (en) | Lighting-stroke protection and surge-protection circuit with simple structure | |
| CN103346546A (en) | Lightning protection circuit used for remote measurement terminal | |
| CN203722230U (en) | Simple protective circuit against reversal connection of power supply | |
| CN202771295U (en) | Voltage stabilizing circuit | |
| CN203233158U (en) | Circuit with surge protection and electrostatic protection | |
| CN203312785U (en) | Lightning protection circuit of telemetry terminal machine | |
| CN203233174U (en) | Lightning protector applicable to high-voltage environment | |
| CN203166758U (en) | Remote turn-off control signal receiving circuit | |
| CN203932969U (en) | A kind of low-voltage leakage protector with over-voltage protecting function | |
| CN203205861U (en) | MP3 player having electrostatic protection function | |
| CN203205863U (en) | Lightning protection circuit applicable to high-pressure environment | |
| CN203233170U (en) | Surge protection circuit | |
| CN203278357U (en) | Charging port circuit with overvoltage protection function | |
| CN203243034U (en) | Camera with electrostatic protection function | |
| CN203233165U (en) | Starting-up surge-protection circuit for camera | |
| CN203205065U (en) | DVD player having anti-lightning function | |
| CN203233161U (en) | Mobile phone with surge protection and electrostatic protection | |
| CN205921361U (en) | Explosion -proof buffer circuit of direct current export power supply | |
| CN203574360U (en) | Refrigerator with surge protection | |
| CN203206325U (en) | Mobile phone having lightning protection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140515 |