Power charging current's intelligent control system and method
An intelligent control system and battery charging technology, applied in secondary battery charging/discharging, battery circuit devices, secondary battery repair/maintenance, etc., can solve problems such as battery heating, charging bad batteries, and affecting battery life, and achieve The effect of fast charging
Inactive Publication Date: 2017-08-29
深圳市鑫彩翼科技有限公司
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Problems solved by technology
When the internal resistance of the battery is too large, charging with a large current will cause the battery to heat up, thereby affecting the service life of the battery, or even directly charging the battery to damage
If the internal resistance of the battery is too small, charging with a small current will not damage the battery, but it will not achieve the purpose of fast charging
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] refer to figure 1 , figure 2 , image 3 As shown, a battery charging current intelligent control system includes a single-chip microcomputer control module, a PWM output module, and a battery charging module. The single-chip microcomputer control module includes a voltage sampling unit, a current sampling unit, and a calculation and analysis unit; the single-chip microcomputer control module realizes pulse Charging, that is, after charging for t1 tim...
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The invention discloses a power charging current's intelligent control system, comprising a single-chip microcomputer control module, a PWM output module, and a battery power charging module. The single-chip microcomputer control module comprises a voltage sampling unit, a current sampling unit, and a calculating and analyzing unit. The single-chip microcomputer control module can realize the pulse-type power charging, meaning that after the power charging time t1, the power charging time t2 is stopped, and this rule works continuously. The voltage sampling unit and the current sampling unit acquire the voltage Vc when the power is being charged, the voltage Vnc when the battery power charging stops, and the power charging current I. The calculating and analyzing unit completes the Vdt calculation and the internal resistance calculation, or rather the battery power charging floating high voltage Vdt=Vc-Vnc, and the internal resistance is approximately close to the formula as R=Vdt / I. The single-chip microcomputer control module controls the PWM output model to change the magnitude of the power charging current I according to the data from the calculating and analyzing unit. The battery power charging module fixes and charges the battery. According to the invention, it is possible to properly select the power charging current based on the internal resistance characteristics of the battery so as to achieve the goal of quick power charging under the condition that the battery is not compromised when charged.
Description
technical field [0001] The invention relates to the technical field of battery charging, in particular to an intelligent control system and method for battery charging current. Background technique [0002] With the massive popularity of portable electronic products, the role of rechargeable batteries that provide them with electrical energy has changed from a "supporting role" in the past to a "key" component. Due to the need for continuity in the use of these products, efficient use of batteries and fast and safe charging technologies are becoming more and more important. Currently, chargers generally use a fixed current charging method. Because the battery internal resistance of different batteries is not the same. For the same battery, the internal resistance of the battery is different when the battery is in different power states; the internal resistance of the battery is also different when the battery is in different service life states. When the internal resistan...
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IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/00711H02J7/0077Y02E60/10
Inventor 袁友君
Owner 深圳市鑫彩翼科技有限公司