Ultrahigh-speed picosecond pulse rising edge generator

Abstract

The utility model discloses an ultra-high-speed picosecond pulse rising edge generator, which relates to the technical field of power electronics and comprises an oscillating circuit, a multivibrator circuit and a trigger, and the oscillating circuit is electrically connected with the trigger through the multivibrator circuit. The oscillating circuit comprises a first integrated circuit, a first resistor and a first capacitor, the model of the first integrated circuit is NE555, the sixth end of the first integrated circuit is electrically connected with the third end of the first integrated circuit through the first resistor, and the sixth end of the first integrated circuit is grounded through the first capacitor; a third end of the first integrated circuit is electrically connected with an input end of the multivibrator circuit, in the ultra-high-speed picosecond pulse rising edge generator, a high-frequency oscillation circuit is output through the oscillation circuit, frequency division oscillation output is carried out through the multivibrator circuit, and therefore picosecond-level oscillation output is achieved, and finally a pulse signal is output through the trigger. The whole circuit is simple in structure, high in practicability and high in cost performance.

Description

Technical Field

[0001] This utility model relates to the field of power electronics technology, specifically to an ultra-high-speed picosecond pulse rising edge generator. Background Technology

[0002] A pulse signal generator is a generator that produces rectangular pulses with adjustable width, amplitude, and repetition frequency. It can be used to test the transient response of linear systems or as an analog signal to test the performance of radar, multiplexing, and other pulse digital systems.

[0003] Some existing pulse generators use DDS digital synthesis schemes to output picosecond-level pulses, but this requires high-performance chips and is expensive, making it difficult to popularize.

[0004] In summary, an ultra-high-speed picosecond pulse rising edge generator was designed. Utility Model Content

[0005] To overcome the above-mentioned shortcomings, this invention provides an ultra-high-speed picosecond pulse rising edge generator.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An ultra-high-speed picosecond pulse rising edge generator includes an oscillation circuit, a multivibrator circuit, and a trigger, wherein the oscillation circuit is electrically connected to the trigger through the multivibrator circuit.

[0008] The oscillation circuit includes a first integrated circuit, a first resistor, and a first capacitor. The first integrated circuit is an NE555. The sixth terminal of the first integrated circuit is electrically connected to the third terminal of the first integrated circuit through the first resistor. The sixth terminal of the first integrated circuit is grounded through the first capacitor. The third terminal of the first integrated circuit is electrically connected to the input terminal of the multivibrator circuit.

[0009] The multivibrator circuit includes a first transistor, a second transistor, a first diode, a third capacitor, a fourth capacitor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, and an eighth resistor. The collector of the first transistor is electrically connected to the third terminal of the first integrated circuit through the first diode and the third capacitor. The cathode of the first diode is connected to a 5V DC voltage externally through the third resistor. The anode of the first diode is connected to a 5V DC voltage externally through the fourth resistor. The collector of the first transistor is electrically connected to the anode of the first diode. The collector of the first transistor is electrically connected to the base of the second transistor through the fourth capacitor. The base of the first transistor is grounded through the sixth resistor. The base of the first transistor is connected to a 5V DC voltage externally through the eighth resistor. The base of the second transistor is connected to a 5V DC voltage externally through the fifth resistor. The emitter of the second transistor is grounded. The emitter of the first transistor is grounded. The collector of the second transistor is connected to a 5V DC voltage externally through the eighth resistor.

[0010] Preferably, the oscillation circuit further includes a second resistor and a second capacitor. The seventh terminal of the first integrated circuit is electrically connected to the first resistor and the first capacitor through the second resistor. The first terminal of the first integrated circuit is grounded. The fifth terminal of the first integrated circuit is grounded through the second capacitor. The eighth terminal and the first terminal of the first integrated circuit are both externally connected to a 5V DC voltage. The output frequency of the oscillation circuit is controlled by the second capacitor.

[0011] Preferably, the multivibrator circuit further includes a fifth capacitor and a seventh resistor. The base of the first transistor is electrically connected to the input terminal of the trigger through a parallel circuit composed of the fifth capacitor and the seventh resistor. The fifth capacitor and the seventh resistor form an RC filter circuit, which can filter out the distorted signal in the high-power trigger signal.

[0012] Preferably, the multivibrator circuit further includes a second diode, the emitter of the second transistor is grounded through the second diode, and the cathode of the second diode is grounded.

[0013] Preferably, the trigger includes a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, and an operational amplifier. The inverting input of the operational amplifier is electrically connected to the collector of the second transistor. The non-inverting input of the operational amplifier is electrically connected to the ninth and tenth resistors through the eleventh resistor. One end of the series circuit formed by the ninth and tenth resistors is grounded, and the other end of the series circuit formed by the ninth and tenth resistors is connected to a 5V DC voltage. The non-inverting input of the operational amplifier is electrically connected to the output of the operational amplifier through the twelfth and thirteenth resistors.

[0014] Preferably, the trigger also includes a Zener diode. The output terminal of the operational amplifier is grounded through the thirteenth resistor and the Zener diode. The Zener diode is a bidirectional Zener diode, which enables the trigger to output a pulse signal within a set voltage range.

[0015] Preferably, the first and second transistors are model 2SC1815, and both are NPN transistors.

[0016] Preferably, both the first diode and the second diode are of type 1S1588.

[0017] The beneficial effects of this utility model are: in this ultra-high speed picosecond pulse rising edge generator, the high frequency oscillation circuit is output through the oscillation circuit, and then the frequency is divided and oscillated through the multivibrator circuit to achieve picosecond-level oscillation output. Finally, the pulse signal is output by the trigger. The whole circuit structure is simple, practical and cost-effective. Attached Figure Description

[0018] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is the circuit schematic diagram of this utility model;

[0020] Figure 2 This is the circuit schematic diagram of the oscillation circuit of this utility model;

[0021] Figure 3 This is the circuit schematic diagram of the multivibrator circuit of this utility model;

[0022] Figure 4 This is the circuit diagram of the trigger of this utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] like Figures 1-4 As shown, an ultra-high-speed picosecond pulse rising edge generator includes an oscillation circuit, a multivibrator circuit, and a trigger. The oscillation circuit is electrically connected to the trigger through the multivibrator circuit.

[0025] The oscillation circuit includes a first integrated circuit U1, a first resistor R1, and a first capacitor C1. The first integrated circuit U1 is an NE555. The sixth terminal of the first integrated circuit U1 is electrically connected to the third terminal of the first integrated circuit U1 through the first resistor R1. The sixth terminal of the first integrated circuit U1 is grounded through the first capacitor C1. The third terminal of the first integrated circuit U1 is electrically connected to the input terminal of the multivibrator circuit. The oscillation circuit is mainly composed of the first integrated circuit U1. At the same time, the first resistor R1 and the first capacitor C1 control the voltage value of the output voltage.

[0026] The multivibrator circuit includes a first transistor Q1, a second transistor Q2, a first diode VD1, a third capacitor C3, a fourth capacitor C4, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, and an eighth resistor R8. The collector of the first transistor Q1 is electrically connected to the third terminal of the first integrated circuit U1 through the first diode VD1 and the third capacitor C3. The cathode of the first diode VD1 is connected to an external 5V DC voltage through the third resistor R3, and the anode of the first diode VD1 is connected to an external 5V DC voltage through the fourth resistor R4. The collector of the first transistor Q1 is electrically connected to the anode of the first diode VD1. The collector of the first transistor Q1 is connected to... The base of the second transistor Q2 is electrically connected to the fourth capacitor C4. The base of the first transistor Q1 is grounded through the sixth resistor R6. The base of the first transistor Q1 is connected to a 5V DC voltage externally through the eighth resistor R8. The base of the second transistor Q2 is connected to a 5V DC voltage externally through the fifth resistor R5. The emitter of the second transistor Q2 is grounded. The emitter of the first transistor Q1 is grounded. The collector of the second transistor Q2 is connected to a 5V DC voltage externally through the eighth resistor R8. The multivibrator circuit is mainly based on the first transistor Q1 and the second transistor Q2. The high-frequency oscillation signal of the oscillation circuit can be divided by the fourth capacitor C4 and the fifth resistor R5 to achieve picosecond level.

[0027] Specifically, the oscillation circuit further includes a second resistor R2 and a second capacitor C2. The seventh terminal of the first integrated circuit U1 is electrically connected to the first resistor R1 and the first capacitor C1 through the second resistor R2. The first terminal of the first integrated circuit U1 is grounded. The fifth terminal of the first integrated circuit U1 is grounded through the second capacitor C2. The eighth terminal and the first terminal of the first integrated circuit U1 are both externally connected to a 5V DC voltage. The output frequency of the oscillation circuit is controlled by the second capacitor C2.

[0028] Specifically, the multivibrator circuit also includes a fifth capacitor C5 and a seventh resistor R7. The base of the first transistor Q1 is electrically connected to the input terminal of the trigger through a parallel circuit composed of the fifth capacitor C5 and the seventh resistor R7. The fifth capacitor C5 and the seventh resistor R7 form an RC filter circuit, which can filter out the distorted signal in the high-power trigger signal.

[0029] Specifically, the multivibrator circuit also includes a second diode VD2, the emitter of the second transistor Q2 is grounded through the second diode VD2, and the cathode of the second diode VD2 is grounded.

[0030] Specifically, the trigger includes a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, and an operational amplifier U1. The inverting input terminal of the operational amplifier U1 is electrically connected to the collector of the second transistor Q2. The non-inverting input terminal of the operational amplifier U1 is electrically connected to the ninth resistor R9 and the tenth resistor R10 through the eleventh resistor R11. One end of the series circuit formed by the ninth resistor R9 and the tenth resistor R10 is grounded, and the other end of the series circuit formed by the ninth resistor R9 and the tenth resistor R10 is connected to an external 5V DC voltage. The non-inverting input terminal of the operational amplifier U1 is electrically connected to the output terminal of the operational amplifier U1 through the twelfth resistor R12 and the thirteenth resistor R13.

[0031] Specifically, the trigger also includes a Zener diode VD3. The output terminal of the operational amplifier U1 is grounded through the thirteenth resistor R13 and the Zener diode VD3. The Zener diode VD3 is a bidirectional Zener diode, which enables the trigger to output a pulse signal within a set voltage range.

[0032] Specifically, the first transistor Q1 and the second transistor Q2 are both 2SC1815 NPN transistors.

[0033] Specifically, the first diode VD1 and the second diode VD2 are both model 1S1588.

[0034] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-speed picosecond pulse rising edge generator, characterized in that: It includes an oscillator circuit, a multivibrator circuit, and a trigger. The oscillator circuit is electrically connected to the trigger through the multivibrator circuit. The oscillation circuit includes a first integrated circuit, a first resistor, and a first capacitor. The first integrated circuit is an NE555. The sixth terminal of the first integrated circuit is electrically connected to the third terminal of the first integrated circuit through the first resistor. The sixth terminal of the first integrated circuit is grounded through the first capacitor. The third terminal of the first integrated circuit is electrically connected to the input terminal of the multivibrator circuit. The multivibrator circuit includes a first transistor, a second transistor, a first diode, a third capacitor, a fourth capacitor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, and an eighth resistor. The collector of the first transistor is electrically connected to the third terminal of the first integrated circuit through the first diode and the third capacitor. The cathode of the first diode is connected to a 5V DC voltage externally through the third resistor. The anode of the first diode is connected to a 5V DC voltage externally through the fourth resistor. The collector of the first transistor is electrically connected to the anode of the first diode. The collector of the first transistor is electrically connected to the base of the second transistor through the fourth capacitor. The base of the first transistor is grounded through the sixth resistor. The base of the first transistor is connected to a 5V DC voltage externally through the eighth resistor. The base of the second transistor is connected to a 5V DC voltage externally through the fifth resistor. The emitter of the second transistor is grounded. The emitter of the first transistor is grounded. The collector of the second transistor is connected to a 5V DC voltage externally through the eighth resistor.

2. The ultra-high-speed picosecond pulse rising edge generator according to claim 1, characterized in that: The oscillation circuit also includes a second resistor and a second capacitor. The seventh terminal of the first integrated circuit is electrically connected to the first resistor and the first capacitor through the second resistor. The first terminal of the first integrated circuit is grounded. The fifth terminal of the first integrated circuit is grounded through the second capacitor. The eighth terminal and the first terminal of the first integrated circuit are both externally connected to a 5V DC voltage.

3. The ultra-high-speed picosecond pulse rising edge generator according to claim 1, characterized in that: The multivibrator circuit also includes a fifth capacitor and a seventh resistor. The base of the first transistor is electrically connected to the input terminal of the trigger through a parallel circuit composed of the fifth capacitor and the seventh resistor.

4. The ultra-high-speed picosecond pulse rising edge generator according to claim 1, characterized in that: The multivibrator circuit also includes a second diode, the emitter of the second transistor is grounded through the second diode, and the cathode of the second diode is grounded.

5. The ultra-high-speed picosecond pulse rising edge generator according to claim 1, characterized in that: The trigger includes a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, and an operational amplifier. The inverting input of the operational amplifier is electrically connected to the collector of the second transistor. The non-inverting input of the operational amplifier is electrically connected to the ninth and tenth resistors through the eleventh resistor. One end of the series circuit formed by the ninth and tenth resistors is grounded, and the other end of the series circuit formed by the ninth and tenth resistors is connected to an external 5V DC voltage. The non-inverting input of the operational amplifier is electrically connected to the output of the operational amplifier through the twelfth and thirteenth resistors.

6. The ultra-high-speed picosecond pulse rising edge generator according to claim 5, characterized in that: The trigger also includes a Zener diode. The output of the operational amplifier is grounded through a thirteenth resistor and the Zener diode, which is a bidirectional Zener diode.

7. The ultra-high-speed picosecond pulse rising edge generator according to claim 1, characterized in that: The first and second transistors are both 2SC1815 NPN transistors.

8. The ultra-high-speed picosecond pulse rising edge generator according to claim 4, characterized in that: Both the first diode and the second diode are model 1S1588.

Images