Intelligent charger of nickel-hydrogen nickel-cadmium battery and control method thereof

An intelligent charging method and technology of an intelligent charger are applied in the direction of charging/discharging secondary batteries, battery circuit devices, current collectors, etc., to achieve the effect of safe system operation

Inactive Publication Date: 2012-07-11
SUZHOU INST OF INDAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In terms of this requirement, the charging equ

Method used

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  • Intelligent charger of nickel-hydrogen nickel-cadmium battery and control method thereof
  • Intelligent charger of nickel-hydrogen nickel-cadmium battery and control method thereof
  • Intelligent charger of nickel-hydrogen nickel-cadmium battery and control method thereof

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Experimental program
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Effect test

Embodiment Construction

[0019] Based on the shortcomings of the traditional nickel-hydrogen-nickel-cadmium battery charger introduced in the background technology in terms of lack of stability and adaptability, the present invention proposes a smart charger for nickel-hydrogen nickel-cadmium battery and its control method, which is effective.

[0020] Such as figure 1 and figure 2 As shown, from the perspective of the hardware structure of the smart charger: the smart charger for this kind of Ni-MH Ni-Cd battery includes a switching power supply circuit and a DC-DC power supply circuit controlled by a single-chip microcomputer. The switching power supply circuit is relatively simple, and a dedicated switching power supply chip is directly used to generate a 10V DC voltage as the driving voltage of the SFR9034 MOS tube. In addition, the general single-chip microcomputer has a working voltage of 5V, so the 5V power supply of the single-chip microcomputer STC12C5204AD is also generated by the 5V volta...

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Abstract

The invention discloses an intelligent charger for a nickel-hydrogen nickel-cadmium battery. The intelligent charger comprises a switching power supply circuit and a DC-DC (Direct Current to Direct Current) power supply circuit controller by using a singlechip, and is characterized in that: the DC-DC power supply circuit is used for outputting a two-pole interface for charging a battery pack through an AD (Analog to Digital) sampling circuit of the singlechip; the AD sampling circuit is a unit of the singlechip for feeding back the voltage and current information of the battery pack; and the PWM (Pulse Width Modulation) output end of the singlechip is connected to the DC-DC power supply circuit. Battery assembly and the types and quantity of assembled batteries are detected in real time through the feedback performance of the AD sampling circuit of the singlechip, so that reasonable PWM waveforms are output by the singlechip, and constant current, constant voltage or turbulent current charging modes are switched by using a modulation charger under different battery states. The technical scheme of the invention is implemented and applied specific to the general charging requirement of the nickel-hydrogen nickel-cadmium battery. The intelligent charger has the characteristics of safe and stable system running.

Description

technical field [0001] The invention relates to an intelligent charging scheme for nickel-hydrogen-nickel-cadmium batteries, in particular to a specific nickel-hydrogen-nickel-cadmium battery charging device and a control realization method thereof, belonging to the field of electronic equipment control. Background technique [0002] At present, rechargeable batteries have been widely used in various instruments, meters and other handheld devices. Ni-MH Ni-Cd batteries have not been replaced by lithium batteries due to their low price, strong versatility, and high current. There is no control chip inside the lithium battery inside the nickel-cadmium battery, and the design requirements for the external charger are much more complicated. At present, there are relatively mature Ni-MH Ni-Cd battery smart charger designs on the market. Most of them use a single-chip microcomputer as the control chip, and judge according to the sampled AD value during the charging process to dete...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/12Y02E60/10
Inventor 蔡成炜周步新居敏花程磊
Owner SUZHOU INST OF INDAL TECH
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