Continuous control-based constant-current restricted-voltage control system
A control system, constant-current and voltage-limiting technology, applied in conversion equipment without intermediate conversion to AC, electric vehicles, electrical components, etc., can solve problems such as damage to batteries, no protection against overvoltage and overcurrent, and poor charging quality. , to achieve the effect of improving service life, good protection and simple structure
Active Publication Date: 2011-06-22
湖南科霸汽车动力电池有限责任公司
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Problems solved by technology
The output voltage of the currently used chargers always fluctuates up and down within a range of values, and the output current changes with the voltage fluctuations. The charging quality is not good, and there is no protection for overvoltage and overcurrent, and the battery will be damaged arbitrarily during the charging process.
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[0013] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0014] Referring to the accompanying drawings, this embodiment includes two power input terminals X1, X2, two power output terminals Y1, Y2, and an internal power supply 1; the power input terminal X2 and the power output terminal Y2 are grounded, and the power input terminal The switch circuit 3 and the current and voltage detection unit 4 are electrically connected in sequence between X1 and the power supply output terminal Y1; the switch circuit 3 and the current and voltage detection unit 4 are electrically connected to the switching power supply dedicated chip 2; the internal power supply 1 passes through the switching power supply The dedicated chip 2 is connected to the power supply of the switch circuit 3 and the current and voltage detection unit 4 .
[0015] One side of the current and voltage detection unit 4 is the power supply output terminal Y1,...
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The invention relates to a continuous control-based constant-current restricted-voltage control system, which comprises two power input ends X1 and X2, two power output ends Y1 and Y2, and an internalpower supply (1); wherein, the power input end X2 and the power output end Y2 are earthed. The invention is characterized in that: a switching circuit (3) and a current-voltage detecting element (4)are electrically connected between the power input end X1 and power output end Y1 in sequence; the switching circuit (3) and the current-voltage detecting element (4) are electrically connected with aspecial chip (2) of a switch power supply; the internal power supply (1) is electrically connected with the power supplies of the switching circuit (3) and the current-voltage detecting element (4) via the special chip (2) of the switch power supply. The invention has simply structure and good protective effect on electrified storage batteries, and effectively improves the service lives of the storage batteries on the basis of ensuring the charging quality. The invention can be used by various DC-DC storage batteries in charging.
Description
technical field [0001] The invention relates to a constant current and voltage limiting control system, in particular to a constant current and voltage limiting control system based on continuous control for realizing DC-DC charging. Background technique [0002] The storage battery is widely used as a clean and environmentally friendly energy source. In order to give full play to the role of the storage battery and prolong the service life of the storage battery, the charging technology of the storage battery has attracted the attention of storage battery users. For this reason, battery production and battery supporting manufacturers are all studying how to better charge the battery. The output voltage of the currently used chargers always fluctuates up and down within a range of values, and the output current changes with the voltage fluctuations. The charging quality is not good, and there is no protection for overvoltage and overcurrent, and the battery will be damaged a...
Claims
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IPC IPC(8): H02J7/00H02M3/02
Inventor 曹辉林勇汤哲何亚登戴桂中周树良陈晓智
Owner 湖南科霸汽车动力电池有限责任公司