Charging management chip

A charging management chip and charging control technology, applied in secondary battery charging/discharging, current collectors, measuring electricity, etc., can solve problems such as software thresholds and limit the number of manufacturers in the industry, and achieve interference avoidance, accurate and reliable detection and judgment, and simplified The effect of the design process

Inactive Publication Date: 2007-09-19
CHENGDU CORPRO TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Many imported or domestic well-known brands of fast smart chargers use MCUs with AD functions, and need to write programs to r

Method used

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[0032] The present invention will be further described below in conjunction with the drawings and embodiments.

[0033] As shown in Fig. 1, the logic block diagram of the charge management chip provided by the present invention has the functions of voltage collection and temperature collection, and at the same time controls charging or discharging as required, and has a status output function. As shown in Figure 2, the chip adopts the QFP44 standard package, and the chip pin layout is shown in Table 1:

[0034] Serial number

[0035] Serial number

[0036] As shown in Figure 3-13, the charge management chip is mainly composed of a charge control output module, a discharge control module, a battery voltage acquisition input module, a fan drive output module, a buzzer output module, a two-color LED control output module, and serial data The output module structure can realize parallel charging or series charging, and pulse charging of the battery through an exter...

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Abstract

The invention discloses a charging management chip, which includes a charging control output module, a discharging control module, a battery voltage sampling input module, a fan driving output module, a buzzer output module, a dual-color LED control output module, a serial data output module. The control function of peripheral pins of the chip is programmable without being supported by peripheral controller, so that full automatization of the charging process detecting control can be realized. The invention needs lesser peripheral elements, and is easy for application design.

Description

technical field [0001] The invention relates to a charger, in particular to a charging management chip. Background technique [0002] At present, there are mainly two types of fast charging management chips, one is a single-chip microcomputer, and the other is a special chip for fast charging management. When using a single-chip microcomputer to realize a mid-to-high-end fast charger, the requirements for the single-chip microcomputer are relatively high. For example, more I / O ports need to be equipped with AD, etc., and related software needs to be developed, which often costs a lot. At present, the Ni-MH / Ni-Cd fast chargers have obvious market advantages, mainly Japanese brand chargers, including SANYO, SONY, PANASONIC, etc., as well as the joint venture brand GP Speedmaster, and the solutions they adopt are mainly with AD. MCU, and then write the program, followed by a dedicated ASCI chip to achieve. Many imported or domestic well-known brands of fast smart chargers use...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02H7/18H01M10/44G01R31/36
CPCY02E60/10
Inventor 徐奕蒋奇
Owner CHENGDU CORPRO TECH CO LTD
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