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Power management circuit of household fire alarm controller

A fire alarm and power management technology, applied in power supply testing, circuit installations, emergency power supply arrangements, etc., can solve problems such as fire alarm failure of fire alarms, and achieve the effect of ensuring continuous normal operation.

Pending Publication Date: 2020-01-31
WUXI BRIGHTSKY ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing fire alarm fails due to abnormal external power supply, the present invention provides a power management circuit of a household fire alarm controller, which can detect the power supply situation at any time to ensure that the fire alarm continues to work normally

Method used

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  • Power management circuit of household fire alarm controller
  • Power management circuit of household fire alarm controller
  • Power management circuit of household fire alarm controller

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Embodiment Construction

[0012] See Figure 1 to Figure 6 As shown, a power management circuit of a household fire alarm controller includes a main control board, a CPU unit, a DC24V input interface are arranged on the main control board, and a DC24C input interface is connected to a power supply board. It is characterized in that the power supply board is provided with Battery management circuit, fault detection circuit, charging and discharging switch circuit, power input interface circuit, power input interface includes lithium battery interface J5 and main power interface J3, battery management circuit includes power chip U1, and pin 20 and pin 21 of power chip U1 are connected Then connect one end of capacitor C204, one end of resistor R1, and main power interface J3, the other end of resistor R1 is connected to one end of capacitor C203, the other end of capacitor C203, and the other end of capacitor C204 are grounded, and pin 9 of power chip U1 is connected to one end of capacitor C108, one end ...

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Abstract

The invention relates to the technical field of a fire alarm circuit, particularly relates to a power management circuit of a household fire alarm controller, can detect the power supply condition atany time and ensure continuous and normal operation of a fire alarm. The circuit comprises a main control board, wherein the main control board is provided with a CPU unit and a DC24V input interface,the DC24C input interface is connected with a power panel. The circuit is characterized in that the power panel is provided with a battery management circuit, a fault detection circuit, a charging and discharging switch circuit and a power input interface circuit, a power supply input interface comprises a lithium battery interface J5 and a main power supply interface J3, the battery management circuit comprises a power supply chip U1, a pin20 and a pin21 of the power supply chip U1 are connected and then connected with one end of a capacitor C204, one end of a resistor R1 and a main power supply interface J3, the other end of the resistor R1 is connected with one end of a capacitor C203, and the other end of the capacitor C203 and the other end of the capacitor C204 are grounded.

Description

technical field [0001] The invention relates to the technical field of fire alarm circuits, in particular to a power supply management circuit of a household fire alarm controller. Background technique [0002] In the construction of residential buildings, in order to meet the needs of a safe and intelligent family living environment, more and more families have installed fire alarm and control systems, which play an alarm role in the early stage of fire. Household fire alarm system is a device that automatically detects, displays and sends out a fire alarm when the protected object is on fire, and plays a huge role in ensuring the safety of people's lives and property. Among them, the power management circuit is an important part of the household fire alarm controller. The stability of the power management circuit affects whether the entire household fire alarm control system can work normally. The power management circuit is responsible for the safe power supply of the ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06G01R31/382G01R31/40
CPCH02J9/061G01R31/40G01R31/382
Inventor 朱超郭金国陆晓萍过栋夏顺飞付宏博黄爱莉
Owner WUXI BRIGHTSKY ELECTRONICS
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