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Fire emergency power supply

A fire emergency and power supply technology, which is applied in the direction of emergency power supply arrangement, electrical components, circuit devices, etc., can solve the problems of slow switching speed, non-adjustable, inaccurate, etc., and achieve the effect of accurate switching, fast switching, and easy use

Pending Publication Date: 2020-11-10
SICHUAN NAFEITE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current EPS requires more batteries, resulting in energy waste, and the conversion speed is slow and inaccurate. In addition, the boost can only be boosted to a fixed voltage for the load, and it cannot be adjusted.

Method used

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  • Fire emergency power supply
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Examples

Experimental program
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Embodiment 1

[0023] according to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 As shown, a fire emergency power supply includes: a storage battery; a battery input switch, the input end of the battery input switch is connected to the storage battery; the battery input switch is provided with a detection chip, and the detection chip passes the charge and discharge current The detection circuit and the parallel circuit are connected to the storage battery; the boost main power circuit, the input terminal of the boost main power circuit is electrically connected to the storage battery, and the output terminal is connected to the load; the step-down main power circuit, the step-down main power circuit The input end of the voltage main power circuit is electrically connected with the external power supply, and the output end is connected with the storage battery. The boost main power circuit is a Boost synchronous boost circuit. The charge and discharge current detect...

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Abstract

The invention relates to the technical field of power supply equipment, in particular to a fire-fighting emergency power supply. The power supply comprises a storage battery; a battery switching-on switch, wherein the input end of the battery switching-on switch is connected with the storage battery, the battery switching-on switch is provided with a detection chip, and the detection chip is connected with the storage battery through a charging and discharging current detection circuit and a parallel circuit; a step-up main power circuit, wherein the input end of the step-up main power circuitis electrically connected with the storage battery, and the output end of the boosting main power circuit is connected with a load; and a step-down main power circuit, wherein the input end of the step-down main power circuit is electrically connected with an external power supply, and the output end of the step-down main power circuit is connected with the storage battery. According to the invention, an MOS tube is used for distinguishing. At ordinary times, only a first MOS tube group is switched on to perform high-side current detection, and a second MOS tube group is switched on to improve the power when voltage boosting is required, so the application requirements of no energy waste and adjustable output voltage are met.

Description

technical field [0001] The invention relates to the technical field of power supply equipment, in particular to a fire emergency power supply. Background technique [0002] Fire emergency power supply (EPS, Emergency Power Supply) is a backup AC power supply device that uses weak current to control strong current conversion. EPS is mainly used for electrical equipment in the fire protection industry, and is mainly used as a backup power supply for emergency power supplies after mains power outages. The scope of use is mainly used in construction engineering, civil fire protection systems and other fields. [0003] When the mains power is normal, the mains power is directly supplied to the load after voltage conversion through the EPS mains. When the mains power is cut off, the EPS switches to the battery inverter to supply power to the load. The difference is: EPS strengthens the monitoring and detection functions of load output and battery, and the design of EPS must meet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/062
Inventor 左海
Owner SICHUAN NAFEITE ELECTRONICS TECH CO LTD
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