Charging circuit, charger with the charging circuit, and charging system
A charging circuit and conversion circuit technology, applied in battery circuit devices, current collectors, circuit devices, etc., can solve problems such as low production efficiency, high labor intensity, and error-proneness, and achieve consistency improvement, increase production efficiency, and avoid labor. high intensity effect
Inactive Publication Date: 2015-09-16
四川川奇机电有限责任公司
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Problems solved by technology
[0005] In view of the problems of high labor intensity, low production efficiency, error-prone, and non-continuous adjustment in the traditional manual debugging method in the related art, the present invention proposes a charging circuit, a charger having the charging circuit and a charging system, which can realize the Automatic adjustment of output voltage and output current
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[0026] 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. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0027] According to an embodiment of the present invention, a charging circuit is provided.
[0028] Such as figure 1 As shown, the charging circuit according to the embodiment of the present invention includes:
[0029] The control module 11 is configured to generate a pulse signal corresponding to the voltage and / or current desired by the user according to the voltage and / or current desired by the user, and send the pulse signal;
[0030] The conversion circuit 12 is used to receive the p...
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The invention discloses a charging circuit which comprises a control module, a conversion circuit, an error comparison circuit and a switching power supply circuit, wherein the control module is used for generating a pulse signal corresponding to user expected voltage and / or current according to the user expected voltage and / or current, and sending the pulse signal; the conversion circuit is used for receiving the pulse signal, converting the pulse signal into a direct-current voltage signal, and sending the direct-current voltage signal; the error comparison circuit is used for receiving the direct-current voltage signal, comparing the direct-current voltage signal with a previously monitored output voltage signal at the switching power supply side to generate an error voltage signal, and sending the error voltage signal; and the switching power supply circuit is used for receiving the error voltage signal, and adjusting the duty ratio conducted by a switching tube according to the error voltage signal. According to the invention, a function of automatically adjusting output voltage and output current of the charging circuit through the control module is realized, thereby greatly improving consistency of the output parameters of the charging circuit.
Description
technical field [0001] The invention relates to the technical field of battery charging, in particular to a charging circuit, a charger having the charging circuit, and a charging system. Background technique [0002] In the circuit system, due to the discrete error and temperature drift of the component parameters, the discrete error of the output parameter of the charger product is large during production, and it changes with the change of the working environment, which leads to the charging of the battery. If the output voltage of the charger is too high or too low, this extreme output will lead to a serious decline in the service life and performance of the battery being charged. For example, when the output voltage of the charger is too high, it will cause the battery being charged Overcharging will reduce the cycle life of the battery being charged, and when the output voltage of the charger is too low, it will cause the battery to be charged to be undercharged, reduci...
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IPC IPC(8): H02J7/10
Inventor 庞小虎
Owner 四川川奇机电有限责任公司