Pulse generation circuit, voltage measuring circuit and voltage measuring method

Abstract

The invention relates to a pulse generation circuit, a voltage measuring circuit and a voltage measuring method. The pulse generation circuit comprises a rectifying module, an energy storing and protecting module, a pulse generating and current limiting module, a control module and a pulse output module, wherein the rectifying module is used for converting an input voltage signal from alternating current into direct current; the energy storing and protecting module is used for storing electric energy and outputting direct current; the pulse generating and current limiting module is used for converting the direct current into a pulse signal and limiting the direct current; the control module is used for generating a control signal for controlling the connection and disconnection of an MOS (Metal Oxide Semiconductor) transistor; and the pulse output module is used for generating and outputting a pulse signal. The pulse generation circuit has the advantages of simple structure, low cost and the like. Besides, after a voltage measuring module is directly arranged behind the pulse generation circuit, the voltage measuring circuit is formed. The voltage measuring circuit and the voltage measuring method are applied to the measurement of the voltage signal with voltage amplitude within a range from dozens volts to hundred volts, and have the advantages of wide measuring scope, simpleness, reliability, convenience in operating and using, and the like.

Description

technical field [0001] The invention belongs to the field of voltage measurement in electricity, and in particular relates to a pulse generating circuit, a voltage measuring circuit including the pulse generating circuit and a measuring method thereof. Background technique [0002] In the field of electricity, there are many kinds of circuits that measure voltage. The commonly used voltage measurement circuits are as follows: [0003] 1. Make voltage measurements using operational amplifier circuits such as figure 1 shown. This circuit uses the principle of virtual short and virtual break of the operational amplifier to measure the voltage to be measured, and obtains the specific voltage value in the form of A / D sampling. The disadvantage of this kind of circuit is that the structure is complex, the energy consumption is large, and the noise generated cannot be ignored. In order to reduce the noise, engineers often need to design a series of noise suppression circuits, wh...

AI Technical Summary

Problems solved by technology

The measurable voltage range of this circuit is too small to meet the requirements of large voltage measurement, and the cost is high

Images