WO2020063390A1 - Circuit de charge rapide et cigarette électronique - Google Patents

Circuit de charge rapide et cigarette électronique Download PDF

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Publication number
WO2020063390A1
WO2020063390A1 PCT/CN2019/106069 CN2019106069W WO2020063390A1 WO 2020063390 A1 WO2020063390 A1 WO 2020063390A1 CN 2019106069 W CN2019106069 W CN 2019106069W WO 2020063390 A1 WO2020063390 A1 WO 2020063390A1
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WIPO (PCT)
Prior art keywords
chip
charging
terminal
fast
data
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Ceased
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PCT/CN2019/106069
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English (en)
Chinese (zh)
Inventor
邱伟华
刘魁
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Changzhou Paiteng Electronic Technology Co Ltd
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Changzhou Paiteng Electronic Technology Co Ltd
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Publication of WO2020063390A1 publication Critical patent/WO2020063390A1/fr
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries

Definitions

  • the utility model relates to the field of electronic equipment, in particular to a fast charging circuit and an electronic cigarette.
  • the electronic device In order to facilitate the portable use of the electronic device, the electronic device is usually provided with a battery assembly capable of being repeatedly charged.
  • a battery assembly capable of being repeatedly charged.
  • the battery components of some electronic devices use multiple batteries in series, such as an electronic cigarette capable of providing heavy smoke (ie, a BOX electronic cigarette).
  • the battery assembly uses multiple batteries in series. Electronic devices require a higher charging current during the charging process to reduce the charging time.
  • the charging circuit of the existing electronic device does not support the fast charging function and cannot improve the charging efficiency, resulting in a slow charging rate of the electronic device.
  • the embodiment of the present invention provides a fast charging circuit and an electronic cigarette.
  • the technical solution is as follows:
  • a fast charging circuit including: a fast charging chip, a charging interface, a boost inductor, and a battery component.
  • the fast charging chip includes at least two charging input terminals, at least two switching pins, and input and output voltages. Detection end, where:
  • the input / output voltage detection terminal of the fast charge chip is connected to a voltage bus terminal of the charging interface to detect an input voltage at the charging interface;
  • the battery voltage detection terminal of the fast charge chip is electrically connected to the battery component to detect the voltage of the battery component, and the battery current detection terminal of the fast charge chip is electrically connected to the at least two switch pins to detect the battery component.
  • the at least two charging input terminals are electrically connected to a voltage bus terminal of the charging interface, and each of the at least two switching pins is electrically connected to the battery component through the boost inductor;
  • the charging interface When the charging interface is connected to an external power source, the current provided by the external power source flows from the voltage bus terminal to the at least two charging input terminals, and the fast charging chip is based on the input voltage at the charging interface.
  • the voltage of the battery component and the charging current control a switching state of a predetermined switching element connected to each of the switching pins, so as to control the fast charging chip to pass the at least two switching pins and the The magnitude of the charging current provided by the piezo inductor to the battery component.
  • the fast charging chip further includes a channel control terminal and a configuration channel signal terminal, where:
  • the path control terminal is connected to a control terminal of a switching element, a first path terminal of the switching element is connected to the at least two charging input terminals, and a second path terminal of the switching element is connected to the charging interface. Voltage bus terminals are connected,
  • the configuration channel signal end of the fast charge chip is connected to the configuration channel signal end of the charging interface
  • the path control terminal controls the first path terminal to conduct conduction with the second path terminal.
  • the fast charge chip includes a first data terminal and a second data terminal, where:
  • a first data terminal of the charging interface is connected to a first data terminal of a data channel switching chip, and a second data terminal of the charging interface is connected to a second data terminal of the data channel switching chip;
  • the first path switching component in the data channel switching chip selects one of a third data terminal and a fourth data terminal of the data channel switching chip to communicate with the first data terminal of the data channel switching chip, and the third The data terminal is connected to the first data terminal of the fast charge chip, and the fourth data terminal is connected to the first data terminal of the controller;
  • the second path switching component When the first path switching component connects the first data terminal of the data channel switching chip with the third data terminal, the second path switching component connects the second data terminal of the data channel switching chip with the third data terminal.
  • the five data terminals are connected, and the fifth data terminal is connected to the second data terminal of the fast charge chip;
  • the second path switching component connects the second data terminal of the data channel switching chip with A sixth data terminal is connected, and the sixth data terminal is connected to the second data terminal of the controller;
  • the control end of the data channel switching chip is connected to the controller; when the data channel switching chip receives a data channel switching instruction sent by the controller, it controls the first path switching component and the first The two-channel switching component switches the channels.
  • each configuration channel of the fast charge chip is grounded through a first filter capacitor.
  • the driving pin of the fast charge chip is connected to the at least two switch pins of the fast charge chip through an energy storage filter capacitor, and between the battery current detection terminal of the fast charge chip and the switch pin An inductor is connected and grounded through a second filter capacitor;
  • a resistor is connected between the battery current detection terminal and the battery component.
  • the resistor is connected in parallel with the first energy storage capacitor and the second energy storage capacitor.
  • the battery component is also grounded through a third filter capacitor.
  • the battery component is connected to the anode of the anti-reverse diode, and the cathode of the anti-reverse diode is further grounded through a fourth filter capacitor.
  • the internal working power terminal of the fast charge chip is grounded through a fifth filter capacitor; and / or,
  • the drive power of the fast charge chip is grounded through a sixth filter capacitor; and / or,
  • At least two charging input terminals of the fast charging chip are grounded through a filter capacitor group, and the filter capacitor group includes at least two filter capacitors connected in parallel; and / or,
  • the voltage bus terminal of the charging interface is grounded through a seventh filter capacitor.
  • a fast charge indicating end of the fast charge chip is electrically connected to an anode of a light emitting diode, and a cathode of the light emitting diode is grounded.
  • an electronic cigarette in a second aspect, includes the first aspect and the fast charging circuit according to any optional implementation manner of the first aspect.
  • the fast charging circuit includes a fast charging chip, a charging interface, a boost inductor, and a battery component.
  • the fast charging chip includes at least two charging input terminals, at least two switching pins, and input and output voltage detection terminals.
  • the input / output voltage detection terminal of the fast charge chip is connected to the voltage bus terminal of the charging interface to detect the input voltage at the charging interface;
  • the battery voltage detection terminal of the fast charge chip is electrically connected to the battery component to detect the voltage of the battery component
  • the battery current detection terminal of the fast charge chip is electrically connected to at least two switch pins to detect the charging current of the battery component;
  • at least two charging input terminals are electrically connected to the voltage bus terminal of the charging interface, and each of the at least two switch pins One is electrically connected to the battery component through a boost inductor; wherein, when the charging interface is connected to an external power source, the current provided by the external power source flows from the voltage bus terminal to the at least two charging input terminals, and the fast charging chip is based on the input voltage at the charging interface.
  • the charging current enables the electronic device to be charged using a power supply higher than 2A; solves the problem of the slow charging rate of the electronic device in the related technology; and achieves the effect of increasing the charging rate of the electronic device.
  • FIG. 1 is a pin schematic diagram of a TYPE_C interface provided in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a fast charging circuit according to an exemplary embodiment of the present invention.
  • FIG. 3 is a schematic diagram of pins of a controller connected to the fast charging circuit according to an exemplary embodiment of the present invention.
  • Fig. 1 is a pin diagram of the TYPE_C interface.
  • TYPE_C supports the positive and negative insertion function.
  • Fig. 2 is a schematic diagram of a fast charging circuit according to an exemplary embodiment of the present invention.
  • the fast charging circuit includes: a fast charging chip, a charging interface, a boost inductor L2, and a battery component (not shown in the figure).
  • the fast charging chip includes at least two charging input terminals and at least two switching pins. Input and output voltage detection terminal, where:
  • the input / output voltage detection terminal of the fast charge chip is connected to the voltage bus terminal of the charging interface to detect the input voltage at the charging interface;
  • the battery voltage detection terminal of the fast charge chip is electrically connected to the battery component to detect the voltage of the battery component.
  • a battery current detection end of the chip is electrically connected to the at least two switch pins to detect a charging current of the battery component;
  • the at least two charging input terminals are electrically connected to the voltage bus terminal of the charging interface, and each of the at least two switching pins is electrically connected to the battery component through a boost inductor L2;
  • the current provided by the external power source flows from the voltage bus terminal of the charging interface to the at least two charging input terminals.
  • the fast charging chip is based on the input voltage at the charging interface, the voltage of the battery component, and the charging current. To control a switching state of a predetermined switching element connected to each switching pin, so as to control a current magnitude of a charging current provided by the fast charge chip to the battery component through the at least two switching pins and the boost inductor.
  • the fast charging chip involved in this application may be a SW6106 chip.
  • the VOUT pin of the fast charging chip U17 is a charging input terminal, and the four voltage bus terminals of the charging interface J2 (including the VBUS1, VBUS2, VBUS3, and VBUS4 pins of the charging interface J2) It is electrically connected to receive the voltage and current input from the charging interface by using at least two VOUT pins of the fast charging chip.
  • the VBUS_C pin of the fast charging chip U17 is the input and output voltage detection terminal and is connected to the voltage bus terminal of the charging interface to detect the input voltage at the charging interface.
  • the BAT pin of the fast charging chip U17 is the battery voltage detection terminal and is connected to the battery.
  • the components are electrically connected.
  • the BAT pin of the fast charge chip U17 receives the voltage VCC_BAR of the battery component to detect the voltage VCC_BAR of the battery component.
  • the BATCSP pin of the fast charge chip is the battery current detection terminal and is connected to the at least two The switch pins SW are electrically connected, and each of the at least two switch pins SW is electrically connected to the battery component through the boost inductor L2 to detect that the fast charge chip is provided to the battery component through the at least two switch pins SW and the boost inductor 12. recharging current.
  • the current provided by the external power source flows from the voltage bus terminal of the charging interface to the at least two charging input terminals.
  • the charging current controls the switching state of a predetermined switching element connected to each switching pin SW in the fast charging chip U17 to control the charging provided by the fast charging chip U17 to the battery component through the at least two switching pins SW and the boost inductor 12 The magnitude of the current.
  • charging is divided into three phases, trickle mode, constant current mode, and constant voltage mode.
  • the fast charge chip enters trickle mode to charge the battery pack at 200MA.
  • the voltage of the battery pack is lower than 3V and greater than 1.5V, the fast charge chip enters trickle mode with the charge current of 300MA.
  • the battery pack is charged; when the battery pack voltage is greater than 3V, the fast charge chip enters the constant current mode and charges the battery pack at full speed according to the target current; when the battery pack voltage rises to the target voltage, the fast charge chip enters the constant voltage mode to charge the battery pack .
  • the fast-charging chip in the fast-charging circuit is provided with at least two charging input terminals to receive a charging current provided by an external power source, the electronic device can be charged using a power supply higher than 2A;
  • the problem that the charging rate of the electronic device is slow in the related art is achieved; the effect of increasing the charging rate of the electronic device is achieved.
  • the fast charge chip further includes a channel control terminal and a configuration channel signal terminal, wherein the channel control terminal is connected to the control terminal of the switching element, and the first channel terminal of the switching element is connected to the at least two charging input terminals,
  • the second path terminal of the switching element is connected to the voltage bus terminal of the charging interface, and the configuration channel signal terminal of the fast charging chip is connected to the configuration channel signal terminal of the charging interface; the fast charging chip detects the charging interface access through the configuration channel signal terminal.
  • the first control terminal and the second control terminal are controlled to be conducted by the path control terminal.
  • the fast charge chip U17 includes 3 channel control terminals and is GATE_A pin, GATE_B pin, and GATE_C pin, and the fast charge chip U17 includes 2 configuration channel signal terminals and CC2 pin and CC1 pin, respectively.
  • the CC1 pin of the fast charging chip U17 is connected to the CC1 pin of the charging interface
  • the CC2 pin of the fast charging chip U17 is connected to the CC2 pin of the charging interface
  • the fast charging chip U17 can be connected through its CC1 pin and CC2 The pin detects whether the charging interface is connected to an external power source.
  • one path control terminal GATE_C of the fast charging chip U17 is connected to the control terminal of the switching element Q1.
  • the first path terminal of the switching element Q1 is connected to the at least two charging input terminals VOUT pins of the fast charging chip U17.
  • the second path terminal of the element Q1 is connected to the voltage bus terminal of the charging interface J2.
  • the GATE_C pin is used to control the conduction of the switching element, so that the at least two charging input terminals VOUT of the fast charging chip
  • the pin is connected to the voltage bus terminal of the charging interface J2 so as to receive the voltage and current provided by the external power source.
  • the switching element Q1 may be, but is not limited to, an NMOS (negative channel, Metal, Oxide, Semiconductor) integrated chip with a model number of DTS2318. Take the switching element as NMOS for example.
  • the GATE_C pin of the control path control terminal outputs a high level to trigger the first path end and the second path of the switching element Q1. The terminal is turned on.
  • each configuration channel of the fast charge chip is grounded through a first filter capacitor.
  • one configuration channel signal terminal CC1 pin of the fast charge chip is grounded through the first filter capacitor C53, and the other configuration channel signal terminal CC2 pin of the fast charge chip is grounded through the first filter capacitor C41.
  • the at least two charging input terminals VOUT pins of the fast charging chip U17 are grounded through a filter capacitor group, and the filter capacitor group includes at least two filter capacitors connected in parallel.
  • the filter capacitor group includes C55, C56, C27, and C18.
  • the voltage bus terminal of the charging interface is grounded through a seventh filter capacitor.
  • the voltage bus terminal of the charging interface (including the VBUS1, VBUS2, VBUS3, and VBUS4 pins of the charging interface J2) is grounded through the seventh filter capacitor C61.
  • the driving pin BST of the fast charge chip U17 is connected to at least two switch pins SW of the fast charge chip U17 through an energy storage filter capacitor C51, and the battery current detection terminal BATCSP of the fast charge chip U17 Connected to ground through the second filter capacitor C35.
  • a resistor R10 is connected between the battery current detection terminal BATCSP of the fast charge chip U17 and the battery component VCC_BAR.
  • the first energy storage capacitor C17, the second energy storage capacitor C52, and the resistor R10 are connected in parallel.
  • the component VCC_BAR is also grounded through the third filter capacitor C44.
  • the battery component VCC_BAR is connected to the anode of the anti-reverse diode D7.
  • the cathode of the anti-reverse diode D7 receives the system power supply voltage VCC_MCU_3V of the controller.
  • C15 is grounded, and anti-reverse diode D7 is used to prevent the battery from discharging to the fast charge chip.
  • the driving power supply VDRD pin of the fast charging chip U17 is grounded through a sixth filter capacitor C40.
  • the light-load current detection pin of the fast charge chip U17 is electrically connected to the at least two charging input terminals VOUT pins of the fast charge chip, and the battery temperature detection end of the fast charge chip U17 passes the heat.
  • the varistor R13 is grounded.
  • the fast charge indication terminal of the fast charge chip is electrically connected to the anode of the light emitting diode, and the cathode of the light emitting diode is grounded.
  • the fast charge indicator terminal and the battery target voltage setting terminal of the fast charge chip are the BSET / HLED pin of the fast charge chip U17.
  • the BSET / HLED pin passes the resistor R15 and the anode of the light-emitting diode D9. Electrically connected, the cathode of light emitting diode D9 is grounded.
  • the light-emitting diode D9 is lighted through the BSET / HLED pin, for example, the high level is output through the BSET / HLED pin.
  • Light-emitting diodes are used to indicate the charging process of the battery. For example, the battery displays red when charging and green when charging is complete.
  • the VCC pin of the internal working power terminal of the fast charging chip U17 is grounded through the fifth filter capacitor ground C54.
  • the fast charging circuit further includes a data channel switching chip U12, a first data terminal pin (including a DM1 pin and a DM2 pin) of the charging interface and a data channel switching chip U12.
  • the first data terminal D-pin is connected
  • the second data terminal (including the DP1 pin and the DP2 pin) of the charging interface is connected to the second data terminal D + pin of the data channel switching chip U12.
  • the third data terminal HSD1- pin of the data channel switching chip U12 is connected to the first data terminal USB_D- of the controller U1 of the controller
  • the fourth data terminal HSD2- pin of the data channel switching chip U12 is connected to the fast charging chip U17.
  • the first data terminal DMA pin is connected; the fifth data terminal HSD1 + pin of the data channel switching chip U12 is connected to the second data terminal USB_D + pin of the controller U1, and the sixth data terminal HSD2 + of the data channel switching chip U12 It is connected to the second data terminal DPA pin of the fast charging chip U17, and the control terminal S pin of the data channel switching chip is connected to the PE13 / SPI0_CLK pin of the controller U1.
  • the first channel switching component in the data channel switching chip U12 selects one of the third data terminal HSD1-pin and the fourth data terminal HSD2-pin of the data channel switching chip U12 and the first data of the data channel switching chip U12. Terminal D-connected; when the first path switching component connects the third data terminal HSD1- pin of the data channel switching chip U12 with the first data terminal D-, the second path switching component switches the fifth data of the data channel switching chip U12 Terminal HSD1 + pin is connected to the second data terminal D +; when the first path switching component connects the fourth data terminal HSD2- pin of the data channel switching chip U12 to the first data terminal D-, the second channel switching component connects the data channel The sixth data terminal HSD2 + pin of the switching chip U12 is connected to the second data terminal D +.
  • the data channel switching chip U12 When the data channel switching chip U12 receives a data channel switching instruction sent by the controller U1, it controls the first path switching component and the second path switching component to switch paths.
  • the first path switching component connects the fourth data terminal HSD2- pin of the data channel switching chip U12 to the first data terminal D-, and the second path switching component leads the sixth data terminal HSD2 + of the data channel switching chip U12.
  • the controller can perform data transmission with an external device through a charging interface or obtain a software upgrade program for upgrading.
  • the GATE_A pin of the fast charge chip U17 is connected to the anode of a diode, the cathode of the diode is grounded through a filter capacitor C19, and the cathode of the diode is also connected to the voltage detection terminal of the fast charge chip's TYPE-A interface (that is, VBUS_A pin).
  • the EPAD pin of the heat-dissipating terminal U17 of the fast-charging chip U17 is grounded.
  • the fast charging chip U17 uses a SW6106 chip
  • the SW6106 chip provides a bidirectional charging function, so the at least two charging input terminals of the fast charging chip U17 are also the output terminals of the boost circuit in the fast charging chip.
  • the charging interface may be a TYPE_C interface.
  • the types of battery components in electronic cigarettes can be lithium batteries, lead-acid batteries, iron-nickel batteries, metal oxide batteries, zinc-silver batteries, zinc-nickel batteries, and other rechargeable batteries that can provide electrical energy.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features. Therefore, the defined “first” and “second” features may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un circuit de charge rapide et une cigarette électronique, qui se rapportent au domaine des dispositifs électroniques. Une borne de détection de tension d'entrée/sortie (VBUS_C) d'une puce à charge rapide (U17) dans le circuit de charge rapide est connectée à des bornes de bus de tension (VBUS1, VBUS2, VBUS3 et VBUS4) d'une interface de charge (J2) pour détecter une tension d'entrée de l'interface de charge (J2). Une borne de détection de tension de batterie (BAT) de la puce à charge rapide (U17) est connectée à un composant de batterie pour détecter la tension du composant de batterie. Une borne de détection de courant de batterie (BATCSP) de la puce à charge rapide (U17) est connectée électriquement à au moins deux broches de commutation (SW) pour détecter un courant de charge du composant de batterie. Au moins deux bornes d'entrée de charge (VOUT) sont électriquement connectées aux bornes de bus de tension (VBUS1, VBUS2, VBUS3 et VBUS4) de l'interface de charge (J2). Les au moins deux broches de commutation (SW) sont chacune connectées électriquement au composant de batterie par l'intermédiaire d'une bobine d'induction de suralimentation. La puce à charge rapide (U17) commande, sur la base de la tension d'entrée au niveau de l'interface de charge (J2) et de la tension et du courant de charge du composant de batterie, l'état de marche/arrêt de composants de commutation prédéterminés connectés aux broches de commutation (SW), commandant ainsi l'amplitude actuelle du courant de charge fourni par les broches de commutation (SW). Le problème de la vitesse de charge lente d'un dispositif électronique actuel est résolu.
PCT/CN2019/106069 2018-09-27 2019-09-17 Circuit de charge rapide et cigarette électronique Ceased WO2020063390A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201821580131.1 2018-09-27
CN201821580131.1U CN208923859U (zh) 2018-09-27 2018-09-27 快充电路以及电子烟

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WO2020063390A1 true WO2020063390A1 (fr) 2020-04-02

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CN208923859U (zh) * 2018-09-27 2019-05-31 常州市派腾电子技术服务有限公司 快充电路以及电子烟
CN112290640B (zh) * 2020-11-11 2022-09-02 维沃移动通信有限公司 一种充电接口电路和电子设备
CN112290639B (zh) * 2020-11-11 2022-08-02 维沃移动通信有限公司 一种充电接口电路和电子设备

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