Non-rechargeable battery-powered inverse connection protection and low-voltage alarm circuit for night-vision device

Abstract

The invention relates to a non-rechargeable battery-powered inverse connection protection and low-voltage alarm circuit for a night-vision device, used for low-voltage alarm and battery reverse connection protection of the night-vision device powered by the non-rechargeable battery. The inverse connection protection and low-voltage alarm circuit consists of a battery reverse connection protection part, a power supply voltage regulation part and a voltage sampling part; and the inverse connection protection and low-voltage alarm circuit has the advantages of small size, less circuit components and parts, low power consumption and the like. When the night-vision device powered by the non-rechargeable battery is over low in voltage, low-voltage alarm can be performed through the circuit to remind a user of replacing the battery and residual working time of the product, so as to avoid unexpected blow to the user caused by shut down of the night-vision device due to complete consumption of the electric quality of the battery; and the inverse connection protection and low-voltage alarm circuit can be used for reverse connection alarm and low-voltage alarm of single-soldier handheld night-vision equipment, single-soldier night-vision aiming equipment, pilot night vision glasses and the like powered by the non-rechargeable battery.

Description

technical field [0001] The invention belongs to the technical field of night vision and the field of electronic circuit design. Background technique [0002] Individual night vision equipment and pilot night vision goggles are mostly powered by non-rechargeable batteries during use. The night vision device takes the image intensifier as the core, and the electrical system of the image intensifier is relatively independent, so it cannot display the power of the power supply battery in real time. When the night vision device is in use, it will shut down due to the exhaustion of the battery, which will bring the user unprepared. hit. To this end, a low-voltage alarm circuit for the night vision device is designed. When the battery is depleted and there is still a certain amount of stored power, the circuit will give an alarm to remind the user that the battery will be depleted. [0003] In the prior art, some night vision instruments have no low voltage alarm, some night visi...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, some night vision instruments have no low voltage alarm, some night vision instruments have low voltage alarm, and most of them detect the voltage through processor chips such as single-chip microcomputers. The circuit is complicated, which increases the volume and power consumption of night vision instruments.

[0004] Disadvantages of existing technology: complex circuit, many components, large volume, high power consumption

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