Small-power low-voltage inverter boosting device and control method thereof

Abstract

The invention discloses a small-power low-voltage inverter boosting device and a control method thereof, which relate to the technical field of low-voltage inverter boosting. An integrated chip is connected onto the output end of a low-voltage DC power supply; two N channel field effect transistors are parallelly connected between the integrated chip and a transformer; the front end of one N channel field effect transistor is serially connected with a NOT gate circuit; front ends of primary ends of two transformers are connected onto the tail ends of the two N channel field effect transistors respectively; and the tail ends of the primary ends of the two transformers are respectively connected with two ends of a common end U0 of the transformers. The two N channel field effect transistors perform periodical on and off and off and on under driving of two ways of square wave pulse signals to generate alternate reverse self-induction electromotive forces, corresponding high-voltage AC voltage is generated in the boosting AC transformer, the device is simple and portable, and carrying and transporting are easy; the safety is high, no electric shock risks exist even if direct contact with a human body, boosting is stable, and the device and the method of the invention are particularly applicable to small-power fresh-keeping device.

Description

technical field [0001] The invention relates to the technical field of low-voltage inverter boosting, in particular to a low-power DC low-voltage boosting device. Background technique [0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is a common electrical appliance used for low-temperature preservation of food or other items in daily life. It is widely used in life and industry. At present, with the development of science and technology and the improvement of living standards, users not only require the refrigerator to have the function of food preservation, but also require the refrigerator to be able to keep food fresh. At present, mainly by setting thin steel plates in the storage area of ​​the refrigerator, by transmitting high voltage to the conductive thin steel plates, an electrostatic field is generated around it, so that the water molecules in the food oscillate orderly and uniformly under the action of the electric fie...

AI Technical Summary

Problems solved by technology

However, the traditional fresh-keeping device is powered by 220V AC power supply, and there is a risk of electric shock when the human body directly contacts the device, which poses a safety hazard during use

At the same time, the 220V AC power supply cannot be carried. In an environment without 220V AC power supply, the refrigerator will lose its fresh-keeping function.

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