An analog-digital electric hybrid experiment system and its control circuit

Abstract

The invention discloses an analog-digital electric hybrid experiment system and a control circuit therefor. The system comprises a box body, an experiment platform, and a turnover cover. The top of the box body is provided with the experiment platform, and the surface of the experiment platform is provided with a 555 experiment circuit board. One side of the 555 experiment circuit board is provided with a power switch, the bottom of the power switch is provided with a signal source board, and the other side of the 555 experiment circuit board is provided with a 74LS74 circuit board. The bottomside of the 74LS74 circuit board is provided with an integrator circuit board, a first band-pass filter circuit board and a second-band pass filter circuit board. The bottom of the experiment platform is provided with a cavity, wherein one side of the cavity is provided with a battery, and the other side of the cavity is provided with two symmetric cooling fans. Moreover, the air inlets of the two cooling fans are communicated with the cavity. In this solution, the turnover cover and the box body are protected by the cooperation of a hasp and a hasp groove, and the turnover cover protects theexperiment platform, and the experimental device is conveniently carried by a handle. The battery is used as a mobile power source, so as to facilitate the outdoor use. The tedious operation and wiring are simplified, and the use is convenient.

Description

technical field [0001] The invention belongs to the technical field of teaching experiment systems, and in particular relates to an analog-digital electric hybrid experiment system and a control circuit thereof. Background technique [0002] Existing experimental platforms often use analog signals and digital signals independently in different devices. The operation is cumbersome and the wiring is complicated. Moreover, the traditional experimental platforms are large and difficult to move. Moreover, they cannot be used without power supply from the power grid. It can only work under the power supply environment, which is very inconvenient to use. [0003] Moreover, in the process of conducting electrical experiments, electrical experimental equipment is often in contact with various personnel, which makes it easy to be contaminated with bacteria and sweat on electrical experimental equipment, which not only easily causes cross-infection of bacteria, but also relatively corr...

AI Technical Summary

Problems solved by technology

[0004] In view of this, what the present invention intends to solve is the technical problems of cumbersome operation, complicated wiring and very inconvenient use in the conventional technology.

Images