CN207652312U - A kind of high-frequency signal generation circuit - Google Patents
A kind of high-frequency signal generation circuit Download PDFInfo
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- CN207652312U CN207652312U CN201721590023.8U CN201721590023U CN207652312U CN 207652312 U CN207652312 U CN 207652312U CN 201721590023 U CN201721590023 U CN 201721590023U CN 207652312 U CN207652312 U CN 207652312U
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Abstract
The utility model discloses a kind of high-frequency signals, and circuit occurs, and the circuit includes transforming circuit and FM circuit, and the input of the transforming circuit is alternating current city electric signal, and output end is 12V DC voltage；The input of the FM circuit is 12V DC signal, and the input terminal of FM circuit is connected with the output end of transforming circuit.The effect of the utility model is, realizes the generation of the low-voltage ac signal of specific frequency.
Description
Technical field
The utility model is related to circuit fields more particularly to a kind of high-frequency signal, and circuit occurs.
Background technology
Our most common alternating currents are no more than 220V, 50Hz alternating currents, due to 220V, 50Hz alternating currents in daily life
It is a kind of waveform of sinusoidal signal, hardware design can be more complicated.
But in practical application, it can usually be related to the voltage high frequency signal of other low frequencies, and this kind of circuit is usually set
Meter can be extremely complex.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of high-frequency signal generation circuit, described
Circuit includes transforming circuit and FM circuit,
The input of the transforming circuit is alternating current city electric signal, and output end is 12V DC voltage；
The input of the FM circuit is 12V DC signal, the input terminal of FM circuit and the output end phase of transforming circuit
Even；
The input terminal 1 of the FM circuit, input terminal 2 be respectively direct current 12V,；
The 9th foot of the input terminal 1 and L298N is connected with each other；
It is connected with capacitance C12, the C13 being connected in parallel in input terminal 1, input terminal 2；
Input terminal 1 is connect with the 1st foot of 7805 circuit of three-terminal voltage-stabilizing integrated；2nd foot of 7805 circuit of three-terminal voltage-stabilizing integrated
Ground connection；Diode D5 between 1st foot of 7805 circuit of three-terminal voltage-stabilizing integrated and the 3rd foot；Wherein, the anode and 7,805 3 of diode
Hold the 3rd foot connection of integrated regulator；2nd foot of 7805 circuit of three-terminal voltage-stabilizing integrated and 7805 circuit of three-terminal voltage-stabilizing integrated
It is connected with capacitance C14 between 3rd foot；
3rd foot of 7805 circuit of three-terminal voltage-stabilizing integrated respectively with the 8th foot of 555 chips, the 6th foot of L298N, resistance R4
1st foot is connected；
4th foot of 555 chip and the 8th foot are connected with each other, and the 2nd foot, the 3rd foot, the 6th foot of 555 chip are mutual
Connection, the 7th foot of the 2nd foot connection L298N of 555 chip, the 2nd foot of 555 chip are grounded by capacitance C11；
5th foot of 555 chip is grounded by capacitance C10；1st foot of 555 chip is grounded；555 chip
The 8th foot connection resistance R1 the 1st end, the 2nd end of resistance R1 respectively with the 1st foot, the 3rd foot, 555 core of potentiometer RK1
7th foot of piece connects, and the 2nd foot of RK1 is connected with the 6th foot of 555 chip；2nd foot of 555 chip also with resistance R2
The 1st end be connected, the 2nd end of resistance R2 is connected with the base stage at the 1st end of resistance R3 and triode T1, resistance R3 the 2nd terminate
2nd foot on ground, the resistance R4 is connected with the 5th foot of the collector of triode T1, L298N, the emitter ground connection of triode T1；
The 1st foot of the L298N is connect with the collector of triode T2；
3rd foot of 7805 circuit of three-terminal voltage-stabilizing integrated is connected with the 1st foot of potentiometer RK2, and the 2nd of the potentiometer RK2 the
Foot is connected and is grounded with the emitter of triode T2；The 3rd foot of the RK2 is connected with the 1st foot of resistance R5, the resistance R5's
2nd foot is connected with the base stage of the triode T2.
The 2nd foot of L298N and the 3rd foot are as output port.
Preferably, it is also associated with current-limiting resistance R0 in the 2nd foot and/or the 3rd foot rear end.
The input of the transforming circuit is alternating current, and input terminal L, input terminal N are respectively connected to the input terminal 1, defeated of transformer
Enter end 2, the output end 1 of transformer connects the cathode of the anode of D2, D1, the output end 2 of transformer connect the anode of D4, D3 it is negative
Pole, the anode of D1, the anode of D3 are connected, and the cathode of D2, the cathode of D4 are connected, and electricity is connected between the cathode of D2 and the anode of D1
Hold C1000, the cathode of D2 is connected with the 1st foot of LM7812, and the 2nd foot of LM7812 and the anode of D1 connect, the 3rd foot of LM7812
And the 2nd between foot, is connected with capacitance C470, the both ends of capacitance C470 are connected to the both ends of C12.
The utility model has the beneficial effects that：The easy generation for realizing high frequency low voltage signal, highest can reach
20KHZ。
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific implementation mode
1 the technical solution of the utility model, but the protection model of the utility model are described in further detail below in conjunction with the accompanying drawings
Enclose be not limited to it is as described below.
A kind of high-frequency signal generation circuit, the circuit include transforming circuit and FM circuit,
The input of the transforming circuit is alternating current city electric signal, and output end is 12V DC voltage；
The input of the FM circuit is 12V DC signal, the input terminal of FM circuit and the output end phase of transforming circuit
Even；
The input terminal 1 of the FM circuit, input terminal 2 be respectively direct current 12V,；
The 9th foot of the input terminal 1 and L298N is connected with each other；
It is connected with capacitance C12, the C13 being connected in parallel in input terminal 1, input terminal 2；
Input terminal 1 is connect with the 1st foot of 7805 circuit of three-terminal voltage-stabilizing integrated；2nd foot of 7805 circuit of three-terminal voltage-stabilizing integrated
Ground connection；Diode D5 between 1st foot of 7805 circuit of three-terminal voltage-stabilizing integrated and the 3rd foot；Wherein, the anode and 7,805 3 of diode
Hold the 3rd foot connection of integrated regulator；2nd foot of 7805 circuit of three-terminal voltage-stabilizing integrated and 7805 circuit of three-terminal voltage-stabilizing integrated
It is connected with capacitance C14 between 3rd foot；
3rd foot of 7805 circuit of three-terminal voltage-stabilizing integrated respectively with the 8th foot of 555 chips, the 6th foot of L298N, resistance R4
1st foot is connected；
4th foot of 555 chip and the 8th foot are connected with each other, and the 2nd foot, the 3rd foot, the 6th foot of 555 chip are mutual
Connection, the 7th foot of the 2nd foot connection L298N of 555 chip, the 2nd foot of 555 chip are grounded by capacitance C11；
5th foot of 555 chip is grounded by capacitance C10；1st foot of 555 chip is grounded；555 chip
The 8th foot connection resistance R1 the 1st end, the 2nd end of resistance R1 respectively with the 1st foot, the 3rd foot, 555 core of potentiometer RK1
7th foot of piece connects, and the 2nd foot of RK1 is connected with the 6th foot of 555 chip；2nd foot of 555 chip also with resistance R2
The 1st end be connected, the 2nd end of resistance R2 is connected with the base stage at the 1st end of resistance R3 and triode T1, resistance R3 the 2nd terminate
2nd foot on ground, the resistance R4 is connected with the 5th foot of the collector of triode T1, L298N, the emitter ground connection of triode T1；
The 1st foot of the L298N is connect with the collector of triode T2；
3rd foot of 7805 circuit of three-terminal voltage-stabilizing integrated is connected with the 1st foot of potentiometer RK2, and the 2nd of the potentiometer RK2 the
Foot is connected and is grounded with the emitter of triode T2；The 3rd foot of the RK2 is connected with the 1st foot of resistance R5, the resistance R5's
2nd foot is connected with the base stage of the triode T2.
The 2nd foot of L298N and the 3rd foot are as output port.
Preferably, it is also associated with current-limiting resistance R0 in the 2nd foot and/or the 3rd foot rear end.
The input of the transforming circuit is alternating current, and input terminal L, input terminal N are respectively connected to the input terminal 1, defeated of transformer
Enter end 2, the output end 1 of transformer connects the cathode of the anode of D2, D1, the output end 2 of transformer connect the anode of D4, D3 it is negative
Pole, the anode of D1, the anode of D3 are connected, and the cathode of D2, the cathode of D4 are connected, and electricity is connected between the cathode of D2 and the anode of D1
Hold C1000, the cathode of D2 is connected with the 1st foot of LM7812, and the 2nd foot of LM7812 and the anode of D1 connect, the 3rd foot of LM7812
And the 2nd between foot, is connected with capacitance C470, the both ends of capacitance C470 are connected to the both ends of C12.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all rights appended by the utility model
It is required that protection domain in.
Claims (1)
1. circuit occurs for a kind of high-frequency signal, which is characterized in that the circuit includes transforming circuit and FM circuit,
The input of the transforming circuit is alternating current city electric signal, and output end is 12V DC voltage；
The input of the FM circuit is 12V DC signal, and the input terminal of FM circuit is connected with the output end of transforming circuit；
The input terminal 1 of the FM circuit, input terminal 2 be respectively direct current 12V,；
The 9th foot of the input terminal 1 and L298N is connected with each other；
It is connected with capacitance C12, the C13 being connected in parallel in input terminal 1, input terminal 2；
Input terminal 1 is connect with the 1st foot of 7805 circuit of three-terminal voltage-stabilizing integrated；2nd foot of 7805 circuit of three-terminal voltage-stabilizing integrated is grounded；
Diode D5 between 1st foot of 7805 circuit of three-terminal voltage-stabilizing integrated and the 3rd foot；Wherein, the anode of diode is steady with 7,805 3 ends
Press the 3rd foot connection of integrated circuit；2nd foot of 7805 circuit of three-terminal voltage-stabilizing integrated and the 3rd of 7805 circuit of three-terminal voltage-stabilizing integrated the
Capacitance C14 is connected between foot；
3rd foot of 7805 circuit of three-terminal voltage-stabilizing integrated respectively with the 8th foot of 555 chips, the 6th foot of L298N, resistance R4 the 1st
Foot is connected；
4th foot of 555 chip and the 8th foot are connected with each other, and the 2nd foot, the 3rd foot, the 6th foot of 555 chip are connected with each other,
The 7th foot of the 2nd foot connection L298N of 555 chip, the 2nd foot of 555 chip are grounded by capacitance C11；
5th foot of 555 chip is grounded by capacitance C10；1st foot of 555 chip is grounded；The 8th of 555 chip
Foot connects the 1st end of resistance R1, the 2nd end of resistance R1 respectively with the 1st foot of potentiometer RK1, the 3rd foot, 555 chip the
7 feet connect, and the 2nd foot of RK1 is connected with the 6th foot of 555 chip；2nd foot of 555 chip also with resistance R2 the 1st
End is connected, and the 2nd end of resistance R2 is connected with the base stage at the 1st end of resistance R3 and triode T1, the 2nd end ground connection of resistance R3, institute
The 2nd foot for stating resistance R4 is connected with the 5th foot of the collector of triode T1, L298N, the emitter ground connection of triode T1；
The 1st foot of the L298N is connect with the collector of triode T2；
3rd foot of 7805 circuit of three-terminal voltage-stabilizing integrated is connected with the 1st foot of potentiometer RK2, the 2nd foot of the potentiometer RK2 with
The emitter of triode T2 is connected and is grounded；The 3rd foot of the RK2 is connected with the 1st foot of resistance R5, and the 2nd of the resistance R5 the
Foot is connected with the base stage of the triode T2；
The 2nd foot of L298N and the 3rd foot are as output port；
The input of the transforming circuit is alternating current, and input terminal L, input terminal N are respectively connected to input terminal 1, the input terminal of transformer
2, the output end 1 of transformer connects the cathode of the anode of D2, D1, and the output end 2 of transformer connects the cathode of the anode of D4, D3,
The anode of D1, the anode of D3 are connected, and the cathode of D2, the cathode of D4 are connected, and capacitance is connected between the cathode of D2 and the anode of D1
The cathode of C1000, D2 are connected with the 1st foot of LM7812, and the 2nd foot of LM7812 and the anode of D1 connect, the 3rd foot of LM7812 and
Between 2nd foot, it is connected with capacitance C470, the both ends of capacitance C470 are connected to the both ends of C12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721590023.8U CN207652312U (en) | 2017-11-24 | 2017-11-24 | A kind of high-frequency signal generation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721590023.8U CN207652312U (en) | 2017-11-24 | 2017-11-24 | A kind of high-frequency signal generation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207652312U true CN207652312U (en) | 2018-07-24 |
Family
ID=62889644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721590023.8U Expired - Fee Related CN207652312U (en) | 2017-11-24 | 2017-11-24 | A kind of high-frequency signal generation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207652312U (en) |
-
2017
- 2017-11-24 CN CN201721590023.8U patent/CN207652312U/en not_active Expired - Fee Related
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| 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: 20180724 Termination date: 20181124 |