Charger driving circuit, integrated circuit, charger, charging control method, and charging control system
A technology for driving circuits and chargers, applied in charging/discharging current/voltage regulation, battery circuit devices, current collectors, etc., can solve the problem of high purchase price of isolated power supplies, and achieve a simple and easy charging control method, low chip cost, The effect of low product cost
Pending Publication Date: 2021-11-16
SZ DJI TECH CO LTD
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Problems solved by technology
However, due to the high purchase price of the isolated power supply, with the increase of charging output channels of the charger, the isolated power supply has become the most expensive material cost
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[0030] 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.
[0031] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, t...
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Disclosed are a charger driving circuit (100), an integrated circuit (400), a charger (20), a charging control method, and a charging control system (40). The charger driving circuit comprises an isolated power supply module (110), a control switch (130), and a charging channel switch (140). The isolated power supply module has a power supply input end (Vin) and a power supply output end (Vout), and comprises a charge pump circuit (111), wherein the power supply input end is connected to the power supply output end by means of the charge pump circuit, and the power supply input end is connected to a voltage source (VCC). The control switch is electrically connected to the power supply output end. The charging channel switch is used for connecting the control switch and a charging battery (70), and the charging channel switch is used for being turned on and turned off under the control of the control switch, so as to control whether to charge the charging battery. The charger utilizes the charge pump circuit to form the isolated power supply module, such that the cost of purchasing an isolated power supply is avoided, the volume of the charger is small and the structure thereof is simple, and same is suitable for driving a high-end MOS transistor.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of battery charging, and in particular to a charger driving circuit, an integrated circuit, a charger, a charging control method, and a charging control system. Background technique [0002] In the field of charging with high voltage and high current, relays are mostly used as switches at present. However, the relay has short service life, low instantaneous impact current resistance, high power consumption, and low current flow capacity, which cannot meet the requirements of high-end high-power chargers. To turn off the relay, you need to turn off the charging current first and then turn off the relay, and the reaction speed is much lower than that of the MOS tube. [0003] Since the current P-MOS process cannot achieve high current and high withstand voltage, it cannot be applied to the output control of high-power chargers. However, if N-MOS is used as the switching tube, the pr...
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IPC IPC(8): H02J7/00
CPCH02J7/007H02J2207/20H02J7/00
Inventor 林宋荣张彩辉金军骞
Owner SZ DJI TECH CO LTD