阅读说明：本技术 一种梳状信号发生器 (Comb signal generator ) 是由 魏亮明 魏先龙 于 2021-07-15 设计创作，主要内容包括：本发明提供了一种梳状信号发生器,包括主体组件、梳状信号发生器部分电路、接线电路、充电电路和信号电路,所述主体组件包括壳体、天线、充电口、接线柱和开关；所述壳体的前表面安装有天线,所述壳体的一侧安装有充电口；本发明在工作时,电流在电路中传输,磁珠bead1、磁珠bead2和磁珠bead3相配合,从而消除存在于电路中的高频噪声以及不需要的电信号,避免信号发生器工作时对其产生影响,电容C2和其所在线路以及电容C4和其所在线路与第一晶振芯片相配合,从而对电路中的频率进行接收和调整,然后通过第二晶振芯片和天线相配合调整频率,为电子仪器设备提供波形和输出电平电信号,大大提高信号发生器的工作效率。(The invention provides a comb signal generator, which comprises a main body assembly, a comb signal generator partial circuit, a wiring circuit, a charging circuit and a signal circuit, wherein the main body assembly comprises a shell, an antenna, a charging port, a binding post and a switch; the antenna is installed on the front surface of the shell, and a charging port is installed on one side of the shell; when the frequency adjusting circuit works, current is transmitted in the circuit, the magnetic bead1, the magnetic bead2 and the magnetic bead3 are matched, so that high-frequency noise and unnecessary electric signals existing in the circuit are eliminated, the signal generator is prevented from being influenced when working, the capacitor C2 and a circuit where the capacitor C4 and the circuit where the capacitor C4 are located are matched with the first crystal oscillator chip, so that frequency in the circuit is received and adjusted, then the frequency is adjusted through the matching of the second crystal oscillator chip and the antenna, waveform and output level electric signals are provided for electronic instrument equipment, and the working efficiency of the signal generator is greatly improved.)

1. A comb signal generator comprising a main body assembly (1), a comb signal generator portion circuit, a wiring circuit, a charging circuit and a signal circuit, characterized in that: the main body assembly (1) comprises a shell (11), an antenna (12), a charging port (13), a binding post (14) and a switch (15);

an antenna (12) is mounted on the front surface of the shell (11), a charging port (13) is mounted on one side of the shell (11), two binding posts (14) are symmetrically mounted on the upper surface of the shell (11), and a switch (15) is mounted in the middle of the upper surface of the shell (11);

the comb-shaped signal generator part circuit comprises a chip U1, a magnetic bead1, a magnetic bead2, a capacitor C1, a capacitor C2, a resistor R4, an indicator light L live wire ED2 and a first crystal oscillator chip, wherein one pin of the chip U1 is connected with the magnetic bead1 and the capacitor C1 in parallel, one end of the magnetic bead1 is electrically connected with one end of the resistor R4, the other end of the R4 is electrically connected with one end of the indicator light L live wire ED2, the other end of the indicator light L live wire ED2 is respectively electrically connected with one end of the capacitor C1 and one pin of the first crystal oscillator chip, two pins of the chip U1 are electrically connected with one end of the magnetic bead2, the other end of the magnetic bead2 is electrically connected with one end of the capacitor C2, and the capacitor C1 and the capacitor C2 are both electrically connected with the three pins of the chip U1.

2. The comb signal generator of claim 1, wherein: the wiring circuit includes electric capacity C2, electric capacity C4, resistance R3 and pilot lamp L live wire ED4, the tripod of first crystal oscillator chip respectively with electric capacity C2 with electric capacity C4's one end electric connection, the four feet of first crystal oscillator chip with resistance R3's one end electric connection, resistance R3's the other end with pilot lamp L live wire ED 4's one end electric connection, pilot lamp L live wire ED 4's the other end and a foot electric connection of first crystal oscillator chip.

3. The comb signal generator of claim 1, wherein: the signal circuit includes second crystal oscillator chip, antenna, pilot lamp L live wire ED3 and resistance R2, a foot of second crystal oscillator chip with pilot lamp L live wire ED 3's one end electric connection, pilot lamp L live wire ED 3's the other end with resistance R2's one end electric connection, resistance R2's the other end with the four-pin electric connection of second crystal oscillator chip, the three-pin of second crystal oscillator chip with the one end electric connection of antenna.

4. The comb signal generator of claim 1, wherein: the charging circuit comprises a switch S1, a diode D2, a charging port and a triode V1, one end of a magnetic bead1 is electrically connected with one end of the switch S1, the other end of the switch S1 is connected with the diode D2 and the triode V1 in parallel, one end of the diode D2 is electrically connected with one end of the charging port, and the other end of the triode V1 is electrically connected with the other end of the charging port.

5. The comb signal generator of claim 4, wherein: one end of the diode D2 is electrically connected with a resistor R1, one end of the resistor R1 is electrically connected with an indicator light L live wire ED1, and one end of the indicator light L live wire ED1 is electrically connected with one end of the diode D2.

6. The comb signal generator of claim 2, wherein: one end of the magnetic bead2 is electrically connected with a diode D1, the other end of the diode D1 is electrically connected with a magnetic bead4, the other end of the magnetic bead4 is electrically connected with a switch S3, and the other end of the switch S3 is electrically connected with four pins of the first crystal oscillator chip.

7. The comb signal generator of claim 3, wherein: one end of the diode D1 is electrically connected to a magnetic bead3, the other end of the magnetic bead3 is electrically connected to a switch S2, and the other end of the switch S2 is electrically connected to four pins of the second crystal oscillator chip.

8. The comb signal generator of claim 2, wherein: the other end of the capacitor C2 is connected with an L live wire, and the other end of the capacitor C4 is connected with an N neutral wire.

Technical Field

The invention relates to the technical field of comb signal generators, in particular to a comb signal generator.

Background

A signal generator is a device that can provide electrical signals of various frequencies, waveforms and output levels. When measuring the amplitude characteristic, frequency characteristic, transmission characteristic and other electrical parameters of various telecommunication systems or telecommunication equipment, and measuring the characteristics and parameters of components, the signal generator is used as a signal source or an excitation source for testing, and is also called a signal source or an oscillator, and has wide application in production practice and technical fields. The various wave curves are expressed by trigonometric functions. The comb spectrum signal generator mainly utilizes higher harmonics of a microwave diode to generate, the working principle is to obtain a signal with short duration by utilizing charging and discharging of an energy storage element, and a pulse waveform meeting requirements is obtained after shaping of a pulse forming network, when the existing comb spectrum signal generator works, the comb spectrum output with different spectral line intervals is realized, the frequency is stable, the power consumption is low, the cost is low, the comb spectrum generator can be widely applied to electromagnetic compatibility comparison tests as a comparison sample, the shielding performance of a verification case in the product research and development process is good, however, the following problems also exist:

when an existing comb signal generator is used for testing and overhauling various electronic instruments and equipment, high-frequency noise and peak interference can be generated on a signal line and a power line, and the normal work of the comb signal generator is easily affected.

Disclosure of Invention

Accordingly, embodiments of the present invention are directed to a comb signal generator, which solves or alleviates the problems of the prior art, and provides at least one advantageous alternative.

The technical scheme of the embodiment of the invention is realized as follows: a comb signal generator comprises a main body assembly, a comb signal generator partial circuit, a wiring circuit, a charging circuit and a signal circuit, wherein the main body assembly comprises a shell, an antenna, a charging port, a wiring terminal and a switch;

the antenna is mounted on the front surface of the shell, the charging port is mounted on one side of the shell, the two binding posts are symmetrically mounted on the upper surface of the shell, and the switch is mounted in the middle of the upper surface of the shell;

the comb-shaped signal generator part circuit comprises a chip U1, a magnetic bead1, a magnetic bead2, a capacitor C1, a capacitor C2, a resistor R4, an indicator light L live wire ED2 and a first crystal oscillator chip, wherein one pin of the chip U1 is connected with the magnetic bead1 and the capacitor C1 in parallel, one end of the magnetic bead1 is electrically connected with one end of the resistor R4, the other end of the R4 is electrically connected with one end of the indicator light L live wire ED2, the other end of the indicator light L live wire ED2 is respectively electrically connected with one end of the capacitor C1 and one pin of the first crystal oscillator chip, two pins of the chip U1 are electrically connected with one end of the magnetic bead2, the other end of the magnetic bead2 is electrically connected with one end of the capacitor C2, and the capacitor C1 and the capacitor C2 are both electrically connected with the three pins of the chip U1.

In some embodiments, the connection circuit includes a capacitor C2, a capacitor C4, a resistor R3, and an indicator light L live wire ED4, three pins of the first crystal oscillator chip are electrically connected to one ends of the capacitor C2 and the capacitor C4, respectively, four pins of the first crystal oscillator chip are electrically connected to one end of the resistor R3, the other end of the resistor R3 is electrically connected to one end of the indicator light L live wire ED4, and the other end of the indicator light L live wire ED4 is electrically connected to one pin of the first crystal oscillator chip; the wiring circuit can connect the comb signal generator with various electronic equipment, so as to test the frequency of the low-frequency amplifier in the electronic equipment.

In some embodiments, the signal circuit includes a second crystal chip, an antenna, an indicator light L live wire ED3 and a resistor R2, one pin of the second crystal chip is electrically connected to one end of the indicator light L live wire ED3, the other end of the indicator light L live wire ED3 is electrically connected to one end of the resistor R2, the other end of the resistor R2 is electrically connected to four pins of the second crystal chip, and three pins of the second crystal chip are electrically connected to one end of the antenna; the signal circuit can provide electrical signals of various frequencies, waveforms and output levels.

In some embodiments, the charging circuit includes a switch S1, a diode D2, a charging port, and a transistor V1, one end of the magnetic bead1 is electrically connected to one end of the switch S1, the other end of the switch S1 is connected in parallel to the diode D2 and the transistor V1, one end of the diode D2 is electrically connected to one end of the charging port, and the other end of the transistor V1 is electrically connected to the other end of the charging port; the charging circuit is connected with an external commercial power and used for supplying power to the signal generator.

In some embodiments, one end of the diode D2 is electrically connected to a resistor R1, one end of the resistor R1 is electrically connected to an indicator light L live wire ED1, and one end of the indicator light L live wire ED1 is electrically connected to one end of the diode D2; the indicator light L hot line ED1 can indicate the charging and powering of the signal generator.

In some embodiments, one end of the magnetic bead2 is electrically connected to a diode D1, the other end of the diode D1 is electrically connected to a magnetic bead4, the other end of the magnetic bead4 is electrically connected to a switch S3, and the other end of the switch S3 is electrically connected to four pins of the first crystal oscillator chip; the switch S3 can control the closing between the bead4 and the first crystal oscillator chip line.

In some embodiments, one end of the diode D1 is electrically connected to a bead3, the other end of the bead3 is electrically connected to a switch S2, and the other end of the switch S2 is electrically connected to the four pins of the second crystal oscillator chip; the switch S2 can control the closing between the bead3 and the second crystal oscillator chip circuit.

In some embodiments, the other end of the capacitor C2 is connected with L live wire, and the other end of the capacitor C4 is connected with N neutral wire.

Due to the adoption of the technical scheme, the embodiment of the invention has the following advantages:

when the frequency adjusting circuit works, current is transmitted in the circuit, the magnetic bead1, the magnetic bead2 and the magnetic bead3 are matched, so that high-frequency noise and unnecessary electric signals existing in the circuit are eliminated, the signal generator is prevented from being influenced when working, the capacitor C2 and a circuit where the capacitor C4 and the circuit where the capacitor C4 are located are matched with the first crystal oscillator chip, so that frequency in the circuit is received and adjusted, then the frequency is adjusted through the matching of the second crystal oscillator chip and the antenna, waveform and output level electric signals are provided for electronic instrument equipment, and the working efficiency of the signal generator is greatly improved.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a circuit diagram of the present invention;

FIG. 2 is a front view of the housing of the present invention;

fig. 3 is a top view of the housing of the present invention.

Reference numerals: 1. a body assembly; 11. a housing; 12. an antenna; 13. a charging port; 14. a binding post; 15. and (4) switching.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-3, an embodiment of the present invention provides a comb signal generator, which includes a main body assembly 1, a comb signal generator circuit, a wiring circuit, a charging circuit, and a signal circuit, where the main body assembly 1 includes a housing 11, an antenna 12, a charging port 13, a terminal 14, and a switch 15;

an antenna 12 is installed on the front surface of the shell 11, a charging port 13 is installed on one side of the shell 11, two binding posts 14 are symmetrically installed on the upper surface of the shell 11, and a switch 15 is installed in the middle of the upper surface of the shell 11;

the comb-shaped signal generator partial circuit comprises a chip U1, a magnetic bead1, a magnetic bead2, a capacitor C1, a capacitor C2, a resistor R4, an indicator light L live wire ED2 and a first crystal oscillator chip, a magnetic bead1 and a capacitor C1 are connected in parallel to one pin of the chip U1, one end of the magnetic bead1 is electrically connected with one end of the resistor R4, the other end of the R4 is electrically connected with one end of the indicator light L live wire ED2, the other end of the indicator light L live wire ED2 is respectively electrically connected with one end of the capacitor C1 and one pin of the first crystal oscillator chip, two pins of the chip U1 are electrically connected with one end of the magnetic bead2, the other end of the magnetic bead2 is electrically connected with one end of the capacitor C2, and the capacitors C1 and C2 are both electrically connected with three pins of the chip U1.

In one embodiment, the connection circuit includes a capacitor C2, a capacitor C4, a resistor R3 and an indicator light L live wire ED4, three pins of the first crystal oscillator chip are electrically connected to one ends of the capacitor C2 and the capacitor C4, four pins of the first crystal oscillator chip are electrically connected to one end of a resistor R3, the other end of the resistor R3 is electrically connected to one end of the indicator light L live wire ED4, and the other end of the indicator light L live wire ED4 is electrically connected to one pin of the first crystal oscillator chip; through the arrangement of the wiring circuit, the comb signal generator can be connected with various electronic instrument devices, so that the frequency of a low-frequency amplifier in the electronic instrument devices can be tested.

In one embodiment, the signal circuit includes a second crystal oscillator chip, an antenna, an indicator light L live wire ED3 and a resistor R2, one pin of the second crystal oscillator chip is electrically connected to one end of an indicator light L live wire ED3, the other end of the indicator light L live wire ED3 is electrically connected to one end of a resistor R2, the other end of the resistor R2 is electrically connected to four pins of the second crystal oscillator chip, and three pins of the second crystal oscillator chip are electrically connected to one end of the antenna; through the arrangement of the signal circuit, electric signals with various frequencies, waveforms and output levels can be provided.

In one embodiment, the charging circuit comprises a switch S1, a diode D2, a charging port and a transistor V1, one end of the magnetic bead1 is electrically connected with one end of the switch S1, the other end of the switch S1 is connected with a diode D2 and a transistor V1 in parallel, one end of the diode D2 is electrically connected with one end of the charging port, and the other end of the transistor V1 is electrically connected with the other end of the charging port; through the setting of charging circuit, charging circuit and external commercial power are connected for supply power for signal generator.

In one embodiment, one end of the diode D2 is electrically connected to the resistor R1, one end of the resistor R1 is electrically connected to the indicator light L live wire ED1, and one end of the indicator light L live wire ED1 is electrically connected to one end of the diode D2; with the above arrangement, the indicator light L and the live line ED1 can display the charging and power supplying conditions of the signal generator.

In one embodiment, one end of the magnetic bead2 is electrically connected to the diode D1, the other end of the diode D1 is electrically connected to the magnetic bead4, the other end of the magnetic bead beacon 4 is electrically connected to the switch S3, and the other end of the switch S3 is electrically connected to four pins of the first crystal oscillator chip; by setting the switch S3, the closing between the bead4 and the first crystal oscillator chip circuit can be controlled.

In one embodiment, one end of the diode D1 is electrically connected to a magnetic bead3, the other end of the magnetic bead3 is electrically connected to a switch S2, and the other end of the switch S2 is electrically connected to four pins of the second crystal chip; by setting the switch S2, the closing between the bead3 and the second crystal oscillator chip circuit can be controlled.

In one embodiment, the other end of the capacitor C2 is connected with L live wire, and the other end of the capacitor C4 is connected with N neutral wire.

The invention is in operation: the external commercial power is connected with a charging port of the signal generator, at the moment, a live wire ED1 of the indicator light L can display charging and power supply conditions, a resistor R1 is matched with a diode D1 to achieve the effect of stabilizing the voltage of the circuit, a triode V1 can amplify a weak electric signal into an electric signal with a larger amplitude value and has the function of amplifying current, after a switch S1 is closed, the current supplies power for the signal generator, when the current is transmitted in the circuit, magnetic bead1, magnetic bead2 and magnetic bead3 are matched to eliminate high-frequency noise and unnecessary electric signals existing in the circuit, the wiring terminal 14 is connected with electronic instrument equipment, a circuit where the capacitor C2 and the capacitor C4 are located and a circuit where the capacitor C4 is located are matched with a first crystal oscillator chip to receive and adjust the frequency in the circuit, then the second crystal oscillator chip is matched with an antenna 15 to adjust the MHZ frequency, and then the waveform and the output level electric signal are provided for the electronic instrument equipment, so that the electronic instrument equipment is tested and overhauled.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.