Ultrasonic mouse repeller adopting negative feedback amplifier circuit

Abstract

The invention discloses an ultrasonic mouse repeller adopting a negative feedback amplifier circuit. The ultrasonic mouse repeller comprises a base, a power circuit, a time controller, ultrasonic generators, a power amplifier and an ultrasonic transducer, wherein a fixing chamber bulging downwards is formed in the base, the side wall of the fixing chamber is downwards inclined to form a funnel shape with a narrow lower port, and the ultrasonic generators are uniformly arranged on one outward side of the side wall of the fixing chamber; a circuit board is arranged in the fixing chamber; the power circuit as well as the time controller, the ultrasonic generators, the power amplifier and the ultrasonic transducer which are connected with the power circuit is arranged on the circuit board. The ultrasonic mouse repeller repels mice through electromagnetic waves and ultrasonic waves, and the actual mouse repelling effect is greatly improved. The ultrasonic generators and electromagnetic wave radiators are arranged on peripheral walls of the fixing chamber and downwards inclined, the ultrasonic wave frequency and the electromagnetic wave coverage area are effectively expanded, and the mouse repelling efficiency is improved. The circuit structure is simple and the cost is low.

Description

technical field [0001] The invention relates to an electronic mouse repeller, in particular to an ultrasonic mouse repeller adopting a negative feedback amplifier circuit. Background technique [0002] At present, most of the electronic mouse repellents on the domestic and foreign markets simply emit electromagnetic waves or ultrasonic waves to realize the effect of expelling mice. It makes pests such as mice develop "adaptability" and "immunity", and loses the effect of repelling mice. Cats are the natural enemies of mice, and it is an effective method to use electronic devices to simulate the sound of cats to drive mice away. Therefore need a kind of ultrasonic repeller that adopts negative feedback amplifying circuit. Contents of the invention [0003] In view of this, the technical problem to be solved by the present invention is to provide an ultrasonic mouse repeller using a negative feedback amplifier circuit. [0004] The purpose of the present invention is achi...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the electronic mouse repellents on the domestic and foreign markets simply emit electromagnetic waves or ultrasonic waves to realize the effect of expelling mice. Makes rats and other pests produce "adaptability" and "immunity", and loses the effect of repelling rats

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