Peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment

Abstract

The invention discloses a peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment. The peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment mainly comprises a peak clipping circuit and a pulse wave modulation circuit connected with the output end of the peak clipping circuit. The peaking clipping pulse wave modulation system based on the two-stage low-pass filter and amplification treatment is characterized in that a two-stage low-pass filter and amplification circuit is further arranged at the output end of the pulse wave modulation circuit, wherein the two-stage low-pass filter and amplification circuit consists of an amplifier P1, an amplifier P2, a triode VT2, a triode VT3, a capacitor C4, a resistor R6, a capacitor C5, a capacitor C6, and the like, wherein the positive electrode of the capacitor C4 is connected with the pulse wave modulation circuit, the negative electrode of the capacitor C4 is grounded; one end of the resistor R6 is connected with the positive phase input end of the amplifier 91 and the other end of the resistor R6 is connected with the positive electrode of the capacitor C4; the positive electrode of the capacitor C5 is connected with an inverted phase input end of the amplifier P1 after passing through a resistor R7, and the negative electrode of the capacitor C5 is connected with the negative electrode of the capacitor C4; and the capacitor C6 is connected in series between the output end and the inverted phase input end of the amplifier P1. By adopting the two-stage low-pass filter and amplification circuit, the peak clipping pulse wave modulation system disclosed by the invention can be used for amplifying the output power of the modulation system, so that the modulation system can meet the needs of simultaneously using more electrical appliances.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a peak-shaving pulse wave modulation system based on two-stage low-pass filter amplification processing. Background technique [0002] The application of electric energy is becoming more and more popular in social production and human life, and electrical appliances that meet various requirements are also emerging. In daily life, people usually use pulse modulation circuits to power electrical appliances to meet people's use of electrical appliances. However, in actual use, the output power of the pulse modulation circuit is not high, which cannot meet people's increasing electrical needs. Contents of the invention [0003] The purpose of the present invention is to overcome the defect that the output power of the traditional pulse wave circuit is not high enough to meet people's increasing electrical needs, and to provide a peak-shaving pulse wave modulation system based on two-stag...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the output power of the traditional pulse wave circuit is not high enough to meet people's increasing electrical needs, and to provide a peak-shaving pulse wave modulation system based on two-stage low-pass filter amplification processing

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