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CN-224233672-U - Super-high-speed picosecond pulse rising edge generator

CN224233672UCN 224233672 UCN224233672 UCN 224233672UCN-224233672-U

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, wherein 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, the sixth end of the first integrated circuit is grounded through the first capacitor, the third end of the first integrated circuit is electrically connected with the input end of the multivibrator circuit, the high-frequency oscillating circuit is output through the oscillating circuit, and frequency division oscillation output is performed through the multivibrator circuit, so that picosecond-level oscillation output is achieved, and finally, a pulse signal is output through the trigger.

Inventors

  • WANG WEI

Assignees

  • 陕西天士立科技有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (8)

  1. 1. The ultra-high-speed picosecond pulse rising edge generator is characterized by comprising an oscillating circuit, a multivibrator circuit and a trigger, wherein 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, the sixth end of the first integrated circuit is grounded through the first capacitor, and the third end of the first integrated circuit is electrically connected with the input end of the multivibrator circuit; The multivibrator circuit comprises a first triode, a second triode, 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, wherein the collector of the first triode is electrically connected with the third end of the first integrated circuit through the first diode and the third capacitor, the cathode of the first diode is externally connected with 5V direct current voltage through the third resistor, the anode of the first diode is externally connected with 5V direct current voltage through the fourth resistor, the collector of the first triode is electrically connected with the anode of the first diode, the collector of the first triode is electrically connected with the base of the second triode through the fourth capacitor, the base of the first triode is grounded through the sixth resistor, the base of the first triode is externally connected with 5V direct current voltage through the eighth resistor, the emitter of the second triode is grounded, and the collector of the second triode is externally connected with 5V direct current voltage through the eighth resistor.
  2. 2. The ultra-high speed picosecond pulse rising edge generator of claim 1, wherein the oscillating circuit further comprises a second resistor and a second capacitor, the seventh end of the first integrated circuit is electrically connected with the first resistor and the first capacitor respectively through the second resistor, the first end of the first integrated circuit is grounded, the fifth end of the first integrated circuit is grounded through the second capacitor, and the eighth end of the first integrated circuit and the first end of the first integrated circuit are externally connected with 5V direct current voltage.
  3. 3. The ultra-high speed picosecond pulse rising edge generator of claim 1, wherein the multivibrator circuit further comprises a fifth capacitor and a seventh resistor, and the base electrode of the first triode is electrically connected with the input end of the trigger through a parallel circuit consisting of the fifth capacitor and the seventh resistor.
  4. 4. The ultra-high speed picosecond pulse rising edge generator of claim 1, wherein the multivibrator circuit further comprises a second diode, an emitter of the second triode is grounded through the second diode, and a cathode of the second diode is grounded.
  5. 5. The ultra-high-speed picosecond pulse rising edge generator of claim 1, wherein the trigger comprises a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor and an operational amplifier, an inverting input end of the operational amplifier is electrically connected with a collector of the second triode, a non-inverting input end of the operational amplifier is respectively electrically connected with the ninth resistor and the tenth resistor through the eleventh resistor, one end of a series circuit formed by the ninth resistor and the tenth resistor is grounded, the other end of the series circuit formed by the ninth resistor and the tenth resistor is externally connected with 5V direct current voltage, and the non-inverting input end of the operational amplifier is electrically connected with an output end of the operational amplifier through the twelfth resistor and the thirteenth resistor.
  6. 6. The ultra-high speed picosecond pulse rising edge generator of claim 5, wherein the trigger further comprises a zener diode, the output end of the operational amplifier is grounded through a thirteenth resistor and the zener diode, and the zener diode is a bidirectional zener diode.
  7. 7. The ultra-high speed picosecond pulse rising edge generator of claim 1, wherein the first triode and the second triode are 2SC1815 in type and are NPN triodes.
  8. 8. The ultra-high speed picosecond pulse rising edge generator of claim 4, wherein the first diode and the second diode are each 1S1588 in type.

Description

Super-high-speed picosecond pulse rising edge generator Technical Field The utility model relates to the technical field of power electronics, in particular to an ultra-high-speed picosecond pulse rising edge generator. Background Pulse signal generators, generators capable of generating rectangular pulses of adjustable width, amplitude and repetition frequency, can be used to test the transient response of linear systems, or as analog signals to test the performance of radar, multiplex and other pulsed digital systems. In the existing pulse generator, the picosecond pulse output is partially performed by a DDS digital synthesis scheme, but the requirement on a chip is high, the price and the cost are high, and the pulse generator cannot be well popularized. In summary, an ultra-high speed picosecond pulse rising edge generator is designed. Disclosure of utility model The utility model aims to overcome the defects and provides an ultra-high-speed picosecond pulse rising edge generator. The utility model realizes the above purpose through the following technical scheme: The ultra-high-speed picosecond pulse rising edge generator comprises an oscillating circuit, a multivibrator circuit and a trigger, wherein 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, the sixth end of the first integrated circuit is grounded through the first capacitor, and the third end of the first integrated circuit is electrically connected with the input end of the multivibrator circuit; The multivibrator circuit comprises a first triode, a second triode, 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, wherein the collector of the first triode is electrically connected with the third end of the first integrated circuit through the first diode and the third capacitor, the cathode of the first diode is externally connected with 5V direct current voltage through the third resistor, the anode of the first diode is externally connected with 5V direct current voltage through the fourth resistor, the collector of the first triode is electrically connected with the anode of the first diode, the collector of the first triode is electrically connected with the base of the second triode through the fourth capacitor, the base of the first triode is grounded through the sixth resistor, the base of the first triode is externally connected with 5V direct current voltage through the eighth resistor, the emitter of the second triode is grounded, and the collector of the second triode is externally connected with 5V direct current voltage through the eighth resistor. Preferably, the oscillating circuit further comprises a second resistor and a second capacitor, the seventh end of the first integrated circuit is electrically connected with the first resistor and the first capacitor through the second resistor, the first end of the first integrated circuit is grounded, the fifth end of the first integrated circuit is grounded through the second capacitor, the eighth end of the first integrated circuit and the first end of the first integrated circuit are externally connected with 5V direct current voltage, and the output frequency of the oscillating circuit is controlled through the second capacitor. Preferably, the multivibrator circuit further comprises a fifth capacitor and a seventh resistor, the base electrode of the first triode is electrically connected with the input end of the trigger through a parallel circuit formed by the fifth capacitor and the seventh resistor, the fifth capacitor and the seventh resistor form an RC filter circuit, and distortion signals in the high-power trigger signal can be filtered. Preferably, the multivibrator circuit further comprises a second diode, an emitter of the second triode is grounded through the second diode, and a cathode of the second diode is grounded. Preferably, the trigger comprises a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor and an operational amplifier, wherein an inverting input end of the operational amplifier is electrically connected with a collector of the second triode, a non-inverting input end of the operational amplifier is respectively electrically connected with the ninth resistor and the tenth resistor through the eleventh resistor, one end of a series circuit formed by the ninth resistor and the tenth resistor is grounded, the other end of the series circuit formed by the ninth resistor and the tenth resistor is externally connected with 5V direct current voltage, and the non-i