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Charging and discharging controller and device

A charge and discharge controller and discharge circuit technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve problems such as load and battery easily damaged

Pending Publication Date: 2021-07-09
瀚云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a charging and discharging controller and device to solve the problem that when the charging and discharging controller supplies power to the load in the prior art, its output voltage changes with the battery voltage, causing the load and the battery to be easily damaged. The problem

Method used

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  • Charging and discharging controller and device
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  • Charging and discharging controller and device

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Embodiment Construction

[0044] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0045] The charging and discharging controller and device provided by the embodiment of the present invention monitor the voltage of the storage battery by setting the undervoltage protection circuit unit, and when the output voltage of the storage battery is undervoltage, the low-voltage power supply can be terminated in time to protect the load and avoid the damage caused by the low-voltage power supply. hazards.

[0046] In order to facilitate the understanding of this embodiment, a charging and discharging controller disclosed in the embodiment of the present invention is firstly introduced in detail:

[0047] Please refer to figure 1 , figure 1 It is a structural diagram of a charging and discharging controller, including a charging circuit unit 101 , an undervoltage protection circuit unit 102...

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Abstract

The invention provides a charging and discharging controller and device. The charging and discharging controller is provided with a charging circuit unit, an under-voltage protection circuit unit and a discharging circuit unit, wherein the under-voltage protection circuit unit is used for monitoring the voltage of a storage battery, when the voltage is lower than a first threshold value, a low level is output to the discharging circuit unit, the discharging circuit unit is forbidden to output the voltage, and when the voltage is higher than a second threshold value, a high level is output to the discharging circuit unit, and the discharging circuit unit is enabled to output the voltage. When the output voltage of the storage battery is under-voltage, low-voltage power supply can be stopped in time, the load is protected, harm caused by low-voltage power supply is avoided, meanwhile, the requirement for peak power of the load can be guaranteed, reliability is improved, and the situation that the load and the battery are prone to damage due to the fact that the output voltage changes along with the voltage change of the storage battery is avoided.

Description

technical field [0001] The present application relates to the technical field of energy power generation, in particular, to a charging and discharging controller and device. Background technique [0002] The solar charge and discharge controller is a device that controls solar panels to charge the battery and the battery to supply power to the load. It is used in a solar power generation system, which can greatly reduce energy loss and environmental pollution. [0003] The charging and discharging controller in the prior art includes two independent charging circuits and discharging circuits. The charging circuit mostly adopts pulse width modulation (Pulse Width Modulation, PWM) control, using PWM signals with different duty ratios to control the on and off of field effect transistors, so as to realize the charging of the battery, or use the step-down Buck circuit to form A direct current / direct current (DC / DC) conversion circuit charges the battery. When it is necessary t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/35H02H3/24
CPCH02J7/00306H02J7/0063H02H3/24H02J7/35H02J7/00304H02J7/00309H02J7/0047H02J7/007
Inventor 代秋林犹智涛史世华陈虹兵蒋亮何渝君舒忠玲张金龙
Owner 瀚云科技有限公司
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