Lithium battery charging circuit and service robot
A charging circuit and lithium battery technology, applied in battery circuit devices, different battery charging, current collectors, etc., can solve the problems of small charging current and increased charging time, and achieve the effect of accelerating charging speed
Active Publication Date: 2022-03-18
WORKWAY SHENZHENINFORMATION TECH CO LTD
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Problems solved by technology
[0003] Based on this, it is necessary to provide a lithium battery charging circuit and a service robot for the problem that the charging current is getting smaller and the charging time is greatly increased when the charging voltage of the lithium battery is closer to the maximum voltage of the charger.
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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.
[0032] Such as figure 1 As shown, it is a schematic diagram of a lithium battery charging circuit provided by an embodiment of the present invention. The lithium battery charging circuit 100 may specifically include: a boost consta...
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The invention relates to a lithium battery charging circuit and a service robot. The charging circuit includes: a voltage boosting constant current circuit, a charging selection circuit and a control unit, wherein the control unit is used for the voltage of the lithium battery to reach a preset voltage when charging the lithium battery Before, the charging selection circuit is controlled to switch on the external power supply for charging, and after the voltage of the lithium battery reaches a preset voltage, the charging selection circuit is controlled to switch on the boost constant current circuit for charging; The boost constant current circuit is used for boosting the external power supply to provide boosted charging voltage for the lithium battery to maintain constant current charging. The lithium battery charging circuit and the service robot of the present invention, through the control unit, according to whether the voltage when charging the lithium battery reaches the preset voltage, control whether to connect the external power supply for charging or to charge after boosting the voltage through the boost constant current circuit, which can speed up the charging of the lithium battery. charging speed.
Description
technical field [0001] The invention relates to the charging field, in particular to a lithium battery charging circuit and a service robot. Background technique [0002] Nowadays, more and more service robots have entered the fields of household, medical, logistics and finance. Lithium batteries are often used by service robots because of their high specific energy, long cycle life, and wide operating temperature range. The maximum output voltage of the charger used by the service robot is usually equal to the overcharge voltage of the lithium battery. This causes the lithium battery voltage to be charged closer to the maximum voltage of the charger, the charging current is getting smaller and smaller, and the charging time is greatly increased. Contents of the invention [0003] Based on this, it is necessary to provide a lithium battery charging circuit and a service robot for the problem that the charging current is getting smaller and the charging time is greatly in...
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IPC IPC(8): H02J7/00
CPCH02J7/0047
Inventor 周贤林樊旭
Owner WORKWAY SHENZHENINFORMATION TECH CO LTD