CN214041508U

CN214041508U - High-frequency high-voltage multi-stage compensation circuit

Info

Publication number: CN214041508U
Application number: CN202021641055.8U
Authority: CN
Inventors: 徐富生
Original assignee: Yangzhong Xianfeng Electronics Co ltd
Current assignee: Yangzhong Xianfeng Electronics Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-08-24
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a high frequency high pressure multistage compensating circuit, including T-300 cable, first fixed resistance R1, second fixed resistance R3, third fixed resistance R8, fourth fixed resistance R10, first potentiometre R2, second potentiometre R4, third potentiometre R5, fourth potentiometre R6, fifth potentiometre R9, sixth potentiometre R7, first electric capacity CP, second electric capacity C0, third electric capacity C8, fourth electric capacity C1+, fifth electric capacity C3, sixth electric capacity C2+, seventh electric capacity C10, eighth electric capacity C4+, ninth electric capacity C6, tenth electric capacity C5+, first variable electric capacity C1, second variable electric capacity C2, third variable electric capacity C4, fourth variable electric capacity C5, fifth variable electric capacity C7, sixth variable electric capacity C7, inductance coil 1 and fuse. The influence caused by parasitic capacitance at the input end of the oscilloscope is avoided, the stability of the frequency of the measurement signal of the oscilloscope is guaranteed when high-frequency side measurement is carried out, and the stability of the detection of the oscilloscope is guaranteed.

Description

High-frequency high-voltage multi-stage compensation circuit

Technical Field

The utility model relates to the technical field of circuits, especially, relate to high frequency high voltage multistage compensating circuit.

Background

With the increase of the frequency of the measured signal, parasitic parameters existing in a measurement system formed by an oscilloscope and a probe introduce great distortion to the measured waveform, and how to select a proper probe to match with the oscilloscope to minimize the measurement error is a problem to be solved; during operation of the oscilloscope and the probe, a compensation circuit system is needed to provide the electrical structure operation of the oscilloscope.

In the compensating circuit for the oscilloscope and the probe in the market at present, because parasitic capacitance exists at the input end of the oscilloscope of the probe of the oscilloscope, when high-frequency side measurement is carried out, the frequency characteristic of a measurement signal of the oscilloscope is easily deteriorated due to the parasitic capacitance, so that the detection application of the oscilloscope is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a multistage compensating circuit of high frequency high pressure has solved the compensating circuit who is used for oscilloscope and probe on the existing market, because there is parasitic capacitance to exist at the input of the oscilloscope of the probe of oscilloscope, so when carrying out the high frequency side volume, cause oscilloscope measured signal's frequency characteristic variation because of parasitic capacitance easily to influence the problem that oscilloscope's detection was used.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the high-frequency high-voltage multistage compensation circuit comprises a T-300 cable, a first fixed resistor R1, a second fixed resistor R3, a third fixed resistor R8, a fourth fixed resistor R10, a first potentiometer R2, a second potentiometer R4, a third potentiometer R5, a fourth potentiometer R6, a fifth potentiometer R9, a sixth potentiometer R7, a first capacitor CP, a second capacitor C0, a third capacitor C8, a fourth capacitor C1+, a fifth capacitor C1, a sixth capacitor C1+, a seventh capacitor C1, an eighth capacitor C1+, a ninth capacitor C1, a tenth capacitor C1+, a first variable capacitor C1, a second variable capacitor C1, a third variable capacitor C1, a fourth variable capacitor C1, a fifth variable capacitor C1, a sixth variable capacitor C1, a joint, a fuse L, a first variable capacitor C1, a second variable capacitor C1, a third variable capacitor C1, a fourth variable capacitor C1, a first variable capacitor C1, a second variable capacitor C1, a third variable capacitor C1, a fourth variable capacitor C1, a second variable capacitor C1, a fuse L and two ends of the variable capacitor R1 are electrically connected with the two ends of the second ends of the variable resistor R1 and the variable resistor R1 are electrically connected with the two ends of the variable resistor R1, and the two ends of the variable resistor R1 are electrically connected with the two ends of the variable resistor R1, wherein the two ends of the variable resistor R1 are electrically connected with the two ends of the fixed resistor R1, the second fixed resistor R3, the second potentiometer R4 and the second variable capacitor C2 are connected in series, the first fixed resistor R1, the first potentiometer R2 and the first variable capacitor Cl are connected in series, the third fixed resistor R8 and the fifth potentiometer R9 are connected in series, the fourth potentiometer R6 and the fourth variable capacitor C5 are connected in series, the third potentiometer R5 and the third variable capacitor C4 are connected in series, the fourth variable capacitor C5, the tenth capacitor C5+ and the ninth capacitor C6 are connected in parallel, the third variable capacitor C4, the eighth capacitor C4+ and the seventh capacitor C10 are connected in parallel, the second variable capacitor C2, the sixth capacitor C2+ and the fifth capacitor C3 are connected in parallel, and the first variable capacitor Cl, the fourth capacitor C1+ and the third capacitor C67 8 are connected in parallel.

Compared with the prior art, the beneficial effects of the utility model are that: this high frequency high voltage multistage compensation circuit, through setting up the both ends of fifth variable capacitor C7 and the both ends electric connection of sixth potentiometre R7, and the both ends of second capacitor C0 and the both ends electric connection of fourth fixed resistor R10, avoided the parasitic capacitance of oscilloscope's input to cause the influence, when carrying out the high frequency side volume, ensured the stability of oscilloscope measurement signal frequency, ensured the stability of oscilloscope detection.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1, the high frequency and high voltage multi-stage compensation circuit includes a T-300 cable, a first fixed resistor R1, a second fixed resistor R3, a third fixed resistor R8, a fourth fixed resistor R10, a first potentiometer R2, a second potentiometer R4, a third potentiometer R5, a fourth potentiometer R6, a fifth potentiometer R9, a sixth potentiometer R7, a first capacitor CP, a second capacitor C0, a third capacitor C8, a fourth capacitor C1+, a fifth capacitor C1, a sixth capacitor C1+, a seventh capacitor C1, an eighth capacitor C1+, a ninth capacitor C1, a tenth capacitor C1+, a first variable capacitor C1, a second variable capacitor C1, a third variable capacitor C1, a fourth variable capacitor C1, a fifth variable capacitor C1, a sixth variable capacitor Cs, a variable coil Cs, a sixth inductor L, a second variable capacitor C1, a fourth variable capacitor C1, a fifth variable capacitor C1, a sixth variable capacitor C1, a sixth variable capacitor C1, a sixth variable capacitor C, a variable capacitor C1, a variable capacitor C, a third variable capacitor C, a third variable capacitor C, a sixth variable capacitor C1, a variable capacitor C1, a variable capacitor C, a third variable capacitor C, a third variable capacitor C1, a variable, a second fixed resistor R3, a second potentiometer R4 and a second variable capacitor C2 are connected in series, a first fixed resistor R1, a first potentiometer R2 and a first variable capacitor Cl are connected in series, a third fixed resistor R8 and a fifth potentiometer R9 are connected in series, a fourth potentiometer R6 and a fourth variable capacitor C5 are connected in series, a third potentiometer R5 and a third variable capacitor C4 are connected in series, a fourth variable capacitor C5, a tenth capacitor C5+ and a ninth capacitor C6 are connected in parallel, a third variable capacitor C4, an eighth capacitor C4+ and a seventh capacitor C10 are connected in parallel, a second variable capacitor C2, a sixth capacitor C2+ and a fifth capacitor C7 are connected in parallel, a first variable capacitor Cl, a fourth capacitor C1+ and a third capacitor C8 are connected in parallel, and by arranging the fifth variable capacitor C8 and the two ends of the sixth capacitor C8 are electrically connected with the two ends of the fourth fixed resistor R8 and the two ends of the fourth variable capacitor R8, the influence caused by parasitic capacitance at the input end of the oscilloscope is avoided, the stability of the frequency of the measurement signal of the oscilloscope is guaranteed when high-frequency side measurement is carried out, and the stability of the detection of the oscilloscope is guaranteed.

In summary, in the high-frequency high-voltage multistage compensation circuit, by arranging that two ends of the fifth variable capacitor C7 are electrically connected with two ends of the sixth potentiometer R7, and two ends of the second capacitor C0 are electrically connected with two ends of the fourth fixed resistor R10, the influence caused by parasitic capacitance at the input end of the oscilloscope is avoided, the stability of the frequency of the measurement signal of the oscilloscope is ensured when high-frequency side measurement is performed, the stability of the detection of the oscilloscope is ensured, and the problem that the frequency characteristic of the measurement signal of the oscilloscope is easily deteriorated due to the parasitic capacitance when high-frequency side measurement is performed due to the existence of the parasitic capacitance at the input end of the oscilloscope of the probe of the oscilloscope in the current market is solved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The high-frequency high-voltage multistage compensation circuit is characterized by comprising a T-300 cable, a first fixed resistor R1, a second fixed resistor R3, a third fixed resistor R8, a fourth fixed resistor R10, a first potentiometer R2, a second potentiometer R4, a third potentiometer R5, a fourth potentiometer R6, a fifth potentiometer R9, a sixth potentiometer R7, a first capacitor CP, a second capacitor C0, a third capacitor C8, a fourth capacitor C1+, a fifth capacitor C3, a sixth capacitor C2+, a seventh capacitor C10, an eighth capacitor C4+, a ninth capacitor C6, a tenth capacitor C5+, a first variable capacitor C5, a second variable capacitor C5, a third variable capacitor C5, a fourth variable capacitor C5, a fifth variable capacitor C5, a sixth variable capacitor Cs 5, a variable coil Cs, a sixth variable capacitor C5, a variable capacitor L, a variable resistor R5 and a variable resistor R5, wherein two ends of the variable capacitor C5 are electrically connected with two ends of the variable capacitor R5, two ends of the second capacitor C0 are electrically connected with two ends of a fourth fixed resistor R10, the second fixed resistor R3, a second potentiometer R4 and a second variable capacitor C2 are connected in series, the first fixed resistor R1, a first potentiometer R2 and a first variable capacitor Cl are connected in series, the third fixed resistor R8 and a fifth potentiometer R9 are connected in series, the fourth potentiometer R6 and a fourth variable capacitor C5 are connected in series, the third potentiometer R5 and a third variable capacitor C4 are connected in series, the fourth variable capacitor C5, a tenth capacitor C5+ and a ninth capacitor C6 are connected in parallel, the third variable capacitor C4, an eighth capacitor C4+ and a seventh capacitor C10 are connected in parallel, the second variable capacitor C2, the sixth capacitor C2+ and a fifth capacitor C3 are connected in parallel, and the first variable capacitor C1 and the fourth variable capacitor C8 are connected in parallel.