CN202798665U - Voltage-stabilizing filtering exclusive-OR gate reverse connection system - Google Patents
Voltage-stabilizing filtering exclusive-OR gate reverse connection system Download PDFInfo
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- CN202798665U CN202798665U CN 201220424259 CN201220424259U CN202798665U CN 202798665 U CN202798665 U CN 202798665U CN 201220424259 CN201220424259 CN 201220424259 CN 201220424259 U CN201220424259 U CN 201220424259U CN 202798665 U CN202798665 U CN 202798665U
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- xor gate
- diode
- integrated chip
- voltage
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Abstract
The utility model discloses a voltage-stabilizing filtering exclusive-OR gate reverse connection system which is characterized by being mainly composed of an exclusive-OR gate protection circuit and a voltage-stabilizing circuit in series connection with the exclusive-OR gate protection circuit. The voltage-stabilizing filtering exclusive-OR gate reverse connection system not only is extremely simple in integral structure and extremely low in manufacturing cost and maintenance cost, but also can thoroughly solve the problem that a traditional exclusive-OR gate circuit does not have a reverse connection protection function. Simultaneously, the voltage-stabilizing filtering exclusive-OR gate reverse connection system has a good filtering voltage-stabilizing function, so that first harmonics and second harmonics of an alternating-current power supply can be effectively filtered, and the service life of an electronic device is prolonged.
Description
Technical field
The utility model relates to a kind of reversal connection system, specifically refers to a kind of voltage regulation filtering XOR gate reversal connection system.
Background technology
At present, people can use various electronic equipments in life, and all have NOR gate circuit in the most electronic equipment, with by identify height, end level comes electronic equipment is controlled.But present NOR gate circuit does not on the market all have reversal connection protection function and voltage regulation filtering function; therefore when the unexpected appearance of external power supply level conversion of the high end; or external power source peak value when sudden change; the sudden change meeting of its peak value produces larger impact to NOR gate circuit; not only its recognition effect can be affected, even also this electronic equipment can be punctured.
The utility model content
The purpose of this utility model is to overcome the defective that present NOR gate circuit does not have reversal connection protection function and voltage regulation filtering function, and a kind of voltage regulation filtering XOR gate reversal connection system with good reversal connection protection function and filtering voltage regulation function is provided.
The utility model is achieved through the following technical solutions: a kind of voltage regulation filtering XOR gate reversal connection system mainly by the XOR gate protective circuit, and forms with voltage stabilizing circuit that this XOR gate protective circuit is connected in series mutually.
Wherein, described XOR gate protective circuit is by two interconnective XOR gate integrated chip U1 and XOR gate integrated chip U2; the resistance R 3 that all is connected with the input of XOR gate integrated chip U1 and XOR gate integrated chip U2, and form with reverse-connection protection circuit that XOR gate integrated chip U1 is in parallel.
Described reverse-connection protection circuit is by an end and the fuse F that the input of XOR gate integrated chip U1 is connected, the other end is connected with the output of XOR gate integrated chip U1 after diode D3, relay K, and forms with diode D4 that relay K is in parallel.
Described voltage stabilizing circuit is by resistance R 2 and the resistance R 1 of mutual series connection, and diode D1 and the diode D2 of serial connection form mutually; The P utmost point of the other end of resistance R 2 and diode D2 is connected in series with the normally opened contact of relay K together with after the other end of resistance R 3 is connected mutually again, the tie point of diode D2 and diode D1 is connected with another input of XOR gate integrated chip U1, the N utmost point ground connection of diode D1.
The utility model compared with prior art has the following advantages and beneficial effect:
(1) not only overall structure is very simple for the utility model, and its cost of manufacture and maintenance cost are very cheap, and the utility model can also thoroughly solve the defective that traditional NOR gate circuit does not have reversal connection protection function.
(2) the utlity model has good filtering voltage regulation function, therefore can effectively filter first harmonic and the second harmonic of AC power, prolong the useful life of electronic equipment.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, of the present utility modelly comprise two large parts, i.e. XOR gate protective circuit and the voltage stabilizing circuit that is connected in series mutually with this XOR gate protective circuit.
Wherein, this XOR gate protective circuit is by resistance R 3, XOR gate integrated chip U1 and XOR gate integrated chip U2, and forms with reverse-connection protection circuit that XOR gate integrated chip U2 is in parallel.As shown in the figure; this reverse-connection protection circuit is then by an end and the fuse F that the input of XOR gate integrated chip U1 is connected, the other end is connected with the output of XOR gate integrated chip U1 after diode D3, relay K, and forms with diode D4 that relay K is in parallel.
Described voltage stabilizing circuit is then by resistance R 2 and the resistance R 1 of mutual series connection, and diode D1 and the diode D2 of serial connection form mutually; The P utmost point of the other end of resistance R 2 and diode D2 is connected in series with the normally opened contact of relay K together with after the other end of resistance R 3 is connected mutually again, the tie point of diode D2 and diode D1 is connected with another input of XOR gate integrated chip U1, the N utmost point ground connection of diode D1
In order to ensure result of use, this XOR gate integrated chip U1 and XOR gate integrated chip U2 all preferentially adopt the 74HC86 type to realize.The preferential value of the resistance of resistance R 1 is 8K Ω, and the preferential value of the resistance of resistance R 2 is 4.7 K Ω, and the value of resistance R 3 then is 4.7 K Ω, and the resistance of resistance R 4 then is 4.7 K Ω.
As mentioned above, just can realize preferably the utility model.
Claims (4)
1. voltage regulation filtering XOR gate reversal connection system is characterized in that: mainly by the XOR gate protective circuit, and form with voltage stabilizing circuit that this XOR gate protective circuit is connected in series mutually.
2. a kind of voltage regulation filtering XOR gate reversal connection according to claim 1 system; it is characterized in that: described XOR gate protective circuit is by two interconnective XOR gate integrated chip U1 and XOR gate integrated chip U2; the resistance R 3 that all is connected with the input of XOR gate integrated chip U1 and XOR gate integrated chip U2, and form with reverse-connection protection circuit that XOR gate integrated chip U1 is in parallel.
3. a kind of voltage regulation filtering XOR gate reversal connection according to claim 2 system; it is characterized in that; described reverse-connection protection circuit is by an end and the fuse F that the input of XOR gate integrated chip U1 is connected, the other end is connected with the output of XOR gate integrated chip U1 after diode D3, relay K, and forms with diode D4 that relay K is in parallel.
4. a kind of voltage regulation filtering XOR gate reversal connection according to claim 3 system, it is characterized in that: described voltage stabilizing circuit is by resistance R 2 and the resistance R 1 of mutual series connection, and diode D1 and the diode D2 of serial connection form mutually; The P utmost point of the other end of resistance R 2 and diode D2 is connected in series with the normally opened contact of relay K together with after the other end of resistance R 3 is connected mutually again, the tie point of diode D2 and diode D1 is connected with another input of XOR gate integrated chip U1, the N utmost point ground connection of diode D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424259 CN202798665U (en) | 2012-08-25 | 2012-08-25 | Voltage-stabilizing filtering exclusive-OR gate reverse connection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424259 CN202798665U (en) | 2012-08-25 | 2012-08-25 | Voltage-stabilizing filtering exclusive-OR gate reverse connection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798665U true CN202798665U (en) | 2013-03-13 |
Family
ID=47825834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424259 Expired - Fee Related CN202798665U (en) | 2012-08-25 | 2012-08-25 | Voltage-stabilizing filtering exclusive-OR gate reverse connection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798665U (en) |
-
2012
- 2012-08-25 CN CN 201220424259 patent/CN202798665U/en not_active Expired - Fee Related
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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: 20130313 Termination date: 20130825 |