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Power-down protection circuit

A power-down protection and circuit technology, applied in circuit devices, electrical components, emergency power arrangements, etc., can solve the problems of high price, complex structure, unstable voltage, etc., and achieve the effect of low cost and small size

Pending Publication Date: 2021-04-16
GUANGZHOU DASEN LIGHTING ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of stage lamps, there will also be power-down problems caused by external power disconnection or internal faults. Currently, stage lamps do not specifically deal with this problem.
[0003] UPS or emergency lights are commonly used in daily life to protect against power outages. Common UPSs are bulky, expensive, complex in structure, and high in maintenance costs. At the same time, they are independent power supply systems and cannot be integrated into the main control board. The power-off protection of emergency lights is purely battery-powered, and its voltage is unstable
Both of the above are not suitable for use in the field of stage and landscape lighting

Method used

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Embodiment Construction

[0028] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention. rather than all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0029] In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an ...

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Abstract

A power-down protection circuit comprises a switching power supply, a battery charging circuit, a rechargeable battery pack and a load, and is characterized by further comprising a boosted circuit, a voltage monitoring circuit, a power supply switching circuit and a load startup and shutdown circuit; the voltage monitoring circuit is used for monitoring a voltage value output by the switching power supply and sending a signal to the power supply switching circuit, and the power supply switching circuit switches different circuits to be conducted according to the signal; the boosted circuit is used for boosting the voltage of the rechargeable battery, and the load startup and shutdown circuit is used for startup and shutdown of a load.

Description

technical field [0001] The invention relates to the field of stage and landscape lamps, in particular to a power-down protection circuit. Background technique [0002] Professional stage lighting has been widely used in the performing arts market because of its rich lighting effects. However, during the use of stage lamps, there will also be power-down problems caused by external power disconnection or internal faults. At present, stage lamps do not specifically deal with this problem. [0003] UPS or emergency lights are commonly used in daily life to protect against power outages. Common UPSs are bulky, expensive, complex in structure, and high in maintenance costs. At the same time, they are independent power supply systems and cannot be integrated into the main control board. The power-off protection of the emergency light is purely battery-powered, and its voltage is unstable. Both of the above are not suitable for use in the field of stage and landscape lamps. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
Inventor 张景
Owner GUANGZHOU DASEN LIGHTING ELECTRONICS
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