WO2018028599A1 - 一种电子烟驱动电路及电子烟 - Google Patents

一种电子烟驱动电路及电子烟 Download PDF

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Publication number
WO2018028599A1
WO2018028599A1 PCT/CN2017/096619 CN2017096619W WO2018028599A1 WO 2018028599 A1 WO2018028599 A1 WO 2018028599A1 CN 2017096619 W CN2017096619 W CN 2017096619W WO 2018028599 A1 WO2018028599 A1 WO 2018028599A1
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WIPO (PCT)
Prior art keywords
driving circuit
electronic cigarette
mcu
half bridge
circuit
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PCT/CN2017/096619
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English (en)
French (fr)
Inventor
邱伟华
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常州聚为智能科技有限公司
卓尔悦欧洲控股有限公司
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Application filed by 常州聚为智能科技有限公司, 卓尔悦欧洲控股有限公司 filed Critical 常州聚为智能科技有限公司
Priority to EP17838729.6A priority Critical patent/EP3494813B1/en
Priority to DE212017000128.3U priority patent/DE212017000128U1/de
Publication of WO2018028599A1 publication Critical patent/WO2018028599A1/zh
Priority to US16/264,316 priority patent/US11109623B2/en

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters

Definitions

  • the utility model relates to the field of electronic cigarette technology, and more particularly to an electronic cigarette driving circuit.
  • the traditional electronic cigarette driving scheme often adopts the way that the MCU directly controls the switching time of the MOS tube, or adopts the method of step-up and step-down IC; however, the MCU directly controls the switching time of the MOS tube, and the output voltage of the circuit is low (not Exceeding the battery voltage), the voltage cannot be adjusted.
  • the voltage boosting function can be realized by using the step-up and step-down IC, the output power is also relatively small, and the requirements for the high-power output of the electronic cigarette cannot be met.
  • the traditional low-power electronic cigarette driving scheme can not meet the market demand for the product's taste, smoke quantity and product operability requirements. To this end, it is necessary to develop a scheme that outputs a large power and an adjustable voltage to improve the performance of the product.
  • the purpose of the utility model is to provide an electronic cigarette driving circuit, which can output a large driving power and can adjust the voltage of the electronic cigarette driving circuit to improve the performance of the electronic cigarette product.
  • an electronic cigarette driving circuit comprising an MCU, a buck-boost driving circuit and a power source; the buck-boost driving circuit is connected with the MCU, the MCU and the buck-boost driving circuit Connected to the power circuit, respectively, characterized in that: the buck-boost driving power
  • the circuit includes a first half bridge driving circuit and a second half bridge driving circuit respectively connected to the MCU, wherein the first half bridge driving circuit and the second half bridge driving circuit are connected by an inductor; one end of the first sampling circuit is connected to the power source An input end for supplying power to the first half bridge driving circuit, the other end of the first sampling circuit is connected to the MCU; one end of the second sampling circuit is connected to an output end of the second half bridge driving circuit, and the other end of the second sampling circuit Connect the MCU.
  • the first half bridge driving circuit includes: a first half bridge driving chip and two first N-type MOS transistors; and the second half bridge driving circuit includes: a second half bridge driving chip, Two second N-type MOS transistors; wherein the first half-bridge driver chip and the second half-bridge driver chip are respectively connected to the MCU, the first half-bridge driver chip and the second half-bridge
  • the driving chip is also respectively connected to the output end of the boosting circuit; the output ends of the first half bridge driving chip are respectively connected to two first N-type MOS tubes, wherein a first N-type MOS tube is connected to the power source;
  • the output ends of the two half-bridge driving chips are respectively connected with two second N-type MOS transistors, wherein the output end of one of the second N-type MOS transistors supplies a voltage to the load; and the two first N-type MOS transistors are connected in series and pass through The inductance is connected to the two second N-type MOS transistors connected in series.
  • the first half bridge driver chip and the second half bridge driver chip are the same chip.
  • the first N-type MOS transistor and the second N-type MOS transistor are the same MOS transistor.
  • the inductance is MS1004-R68M.
  • the first half bridge driver chip and the second half bridge driver chip are ADP3110A.
  • the first N-type MOS transistor and the second N-type MOS transistor are SIRA04DP.
  • the present invention also provides an electronic cigarette, the electronic cigarette driving circuit of any of the above.
  • the utility model provides an electronic cigarette driving circuit, which comprises an MCU, a buck-boost driving circuit, a first sampling circuit, a second sampling circuit and a power source; the buck-boost driving circuit is connected with the MCU, the MCU and The buck-boost driving circuit is respectively connected to the power source, and the buck-boost driving circuit includes a first half-bridge driving circuit and a second half-bridge driving circuit respectively connected to the MCU, and the first half-bridge driving circuit and The second half-bridge driving circuit is connected by an inductor, one end of the first sampling circuit is connected to the power source, and the other end of the first sampling circuit is connected to the MCU; one end of the second sampling circuit is connected to the a second half bridge driving circuit, and the other end of the second sampling circuit is connected to the MCU.
  • the first half bridge driving circuit includes a first half bridge driving chip and two first N-type MOS transistors;
  • the second half bridge driving circuit includes a second half bridge driving chip, Two second N-type MOS transistors; one end of the first half-bridge driving chip is connected to the MCU, and the other end is respectively connected to two first N-type MOS tubes, and one end of the second half-bridge driving chip is The MCUs are connected, and the other ends are respectively connected to two of the second N-type MOS tubes.
  • the boosting circuit is included, and the first half bridge driving chip and the second half bridge driving chip are also respectively connected to the output end of the boosting circuit.
  • two of the first N-type MOS transistors are connected in series and connected to the two second N-type MOS transistors connected in series by the inductance.
  • a voltage stabilizing circuit is further included, the voltage stabilizing circuit is connected to the MCU at one end and to the power source at the other end.
  • the first half bridge driver chip and the second half bridge driver chip are In the same chip, the first N-type MOS transistor and the second N-type MOS transistor are the same MOS transistor.
  • the inductance is MS1004-R68M.
  • the first half bridge driver chip and the second half bridge driver chip are ADP3110A.
  • the first N-type MOS transistor and the second N-type MOS transistor are SIRA04DP.
  • An electronic cigarette comprising the electronic cigarette driving circuit described in any of the above embodiments.
  • the MCU uses the first sampling circuit to collect the voltage input by the power supply to the first half bridge driving circuit, and the second sampling circuit collects the output voltage of the first half bridge driving circuit to issue the first voltage.
  • a control command and a second voltage control command the boosting circuit is configured to increase a voltage of the buck-boost driving circuit according to the first voltage control command of the MCU to provide a working voltage for the buck-boost driving circuit; and the buck-boost driving circuit is The second voltage control command increases or decreases the load voltage thereof, so that the output voltage can be increased by adjusting the PWM duty ratio through the MCU, and the output voltage can be adjusted according to different requirements.
  • the MOS tube selects the SIRA04DP, which has a small on-resistance and high power, and can minimize the loss in the power conversion of the electronic cigarette.
  • FIG. 1 is a schematic structural view of an electronic cigarette driving circuit provided by the present invention
  • FIG. 2 is a schematic view showing another structure of an electronic cigarette driving circuit according to the present invention.
  • FIG. 3 is a schematic diagram showing the connection of the first half bridge driving circuit and the second half bridge driving circuit proposed by the present invention.
  • FIG. 1 shows a schematic structural diagram of an electronic cigarette driving circuit, including: an MCU, a buck-boost driving circuit, a power supply, a boosting circuit, a voltage stabilizing circuit, a first sampling circuit, and a second sampling circuit.
  • the buck-boost driving circuit, the boosting circuit, and the voltage stabilizing circuit are respectively connected to the MCU, and the buck-boost driving circuit and the MCU are respectively connected to the power circuit;
  • the boosting circuit, The voltage stabilizing circuit and the buck-boost driving circuit are respectively connected to the power source;
  • the boosting circuit output end is connected to the buck-boost driving circuit;
  • the buck-boost driving circuit includes a first half-bridge driving circuit and a second half-bridge driving circuit respectively connected to the MCU, wherein the first half-bridge driving circuit and the second half-bridge driving circuit are connected by an inductor; the first sampling circuit One end of the first sampling circuit is connected to the MCU; the other end of the second sampling circuit is connected to the output end of the second half-bridge driving circuit, The other end of the two sampling circuit is connected to the MCU.
  • the power supply is an input voltage of the boosting circuit, the voltage stabilizing circuit, and the buck-boost driving circuit;
  • the voltage stabilizing circuit provides a stable operating voltage for the MCU;
  • the boosting circuit is used for Receiving a first voltage control command of the MCU to boost a voltage of the buck-boost driving circuit to provide an operating voltage for the buck-boost driving circuit;
  • the first sampling circuit is configured to collect the power source a voltage input to the buck-boost driving circuit (acquiring an input voltage of the power supply to the first half-bridge driving circuit) and fed back to the MCU;
  • the second sampling circuit is configured to collect the rising Depressing an output voltage of the driving circuit (acquiring an output voltage of the second half-bridge driving circuit) and feeding back to the MCU;
  • the MCU is configured to receive a voltage fed back by the sampling circuit, and issue the first according to the feedback voltage a voltage control command and a second voltage control command;
  • the buck-boost driving circuit is configured to increase or
  • the MCU uses the first sampling circuit to collect the voltage input by the power supply to the buck-boost driving circuit and the second sampling circuit collects the output voltage of the buck-boost driving circuit, and issues the first voltage control command. And a second voltage control command; the boosting circuit is configured to increase a voltage of the buck-boost driving circuit according to the first voltage control command of the MCU to provide a working voltage for the buck-boost driving circuit; and the buck-boost driving circuit is configured according to the The second voltage control command boosts or lowers the load voltage.
  • the PWM duty cycle is adjusted by the MCU, the output voltage can be increased, and the output voltage can be adjusted according to different requirements. Therefore, it is possible to output a large driving power and adjust the voltage of the electronic cigarette driving circuit to improve the performance of the electronic cigarette product.
  • the first half bridge driving circuit includes: a first half bridge driving chip, two first N-type MOS transistors; and the second half-bridge driving circuit includes: a second half bridge driver chip and two second N-type MOS transistors; wherein the first half bridge driver chip and the second half bridge driver chip are respectively connected to the MCU, the first half bridge driver chip, The second half bridge driving chip is also respectively connected to the output end of the boosting circuit; the output ends of the first half bridge driving chip are respectively connected with two first N-type MOS tubes, wherein one first N-type MOS tube and The power supply connection; the output end of the second half bridge driving chip is respectively connected to two second N-type MOS tubes, wherein the output end of one second N-type MOS tube supplies a voltage to the load; and the two first N-types MOS tube string After the connection is connected to the two N-type MOS transistors connected in series by the inductor, it should be noted that in the embodiment, the inductors are respectively associated with two of the first
  • the specific circuit connection of the first half bridge driving circuit and the second half bridge driving circuit is as shown in FIG. 3.
  • the first half bridge driving circuit includes a first half bridge driving chip U13, a capacitor C6, a capacitor C8, a capacitor C11, a capacitor C14, and a diode D9; and two first N-type MOS tubes U10 and U12 form a first half bridge.
  • the input ends of the half bridges are connected to the ground through the capacitor C6 and the capacitor C11 for filtering the input voltage; the two first N-type MOS transistors U10 and U12 are respectively connected to the first half-bridge driving chip U13;
  • the first half bridge driving chip U13 is connected to the boosting circuit, and the first half bridge driving chip U13 is connected to the capacitor C8 for filtering;
  • the fourth half of the first half bridge driving chip U13 also passes through the diode D9 is connected to pin 1, for charging the capacitor C14 connected to the pin 1, the capacitor C14 is connected to the output end of the half bridge, and is connected to the pin 7 of the first half bridge driving chip U13;
  • the second half bridge driver chip U13 is connected to the MCU, and the second voltage control command is sent by the MCU to control output of the first half bridge driver chip U13;
  • An N-type MOS transistor U10, U12 constitutes the first half bridge and the combination of inductances, and acts as a step-down.
  • the second half-bridge driving circuit includes a second half-bridge driving chip U14, a capacitor C5, a capacitor C20, a capacitor C30, a capacitor C31, and a diode D5.
  • the two second N-type MOS transistors U11 and U15 form two half bridges.
  • the input end of the half bridge is connected to the ground through the capacitor C20 and the capacitor C30 for filtering the input voltage; the two second N-type MOS tubes U11 and U15 are respectively connected to the second half bridge driving chip U14;
  • the second half bridge driver chip U14 is connected to the boost circuit, the second half bridge driver chip U14 is connected to the capacitor C5 for filtering; the second half bridge driver chip U14 is also passed through the 4th leg.
  • the diode D5 is connected to the pin 1 for charging the capacitor C31 connected to the pin 1, the capacitor C31 is connected to the output end of the half bridge, and the pin 7 of the second half bridge driving chip U14 Connecting, the second half bridge driver chip U14 is connected to the MCU, and the second voltage control command is sent by the MCU to control output of the second half bridge driver chip U14;
  • the outputs of the two half bridges are connected by the inductance L1.
  • Two second N-type MOS tubes U11 and U15 form a combination of two half bridges and an inductor to function as a booster.
  • the specific buck-boost process requires the MCU to control the turn-on and turn-off time of the MOS transistor through the half-bridge drive circuit.
  • the MCU will judge whether the buck or boost output is needed according to the information obtained by sampling, and continuously adjust the PWM control signal to ensure that the output power reaches the set value.
  • the first half bridge driving chip U13 and the second half bridge driving chip U14 are the same chip.
  • the first half bridge driving chip U13 and the second half bridge driving chip U14 are selected as ADP3110A, and the MOS driving chip can accelerate the conduction and the pipe section of the MOS tube, thereby improving the power supply efficiency.
  • the MOS driving chip can accelerate the conduction and the pipe section of the MOS tube, thereby improving the power supply efficiency.
  • other types of chips that can implement this function can be used.
  • the first N-type MOS transistor and the second N-type MOS transistor are the same MOS transistor.
  • the MOS tube here is selected by SIRA04DP, which has a small on-resistance and high power, and can minimize the loss in the power conversion of the electronic cigarette.
  • the inductance is MS1004-R68M. It has the advantages of wide frequency range, high current resistance and good magnetic shielding effect. Of course, this is not a limitation on the MOS tube model and inductance, as long as other types of components can achieve the intended function. In addition, these two components can determine the maximum output power of the product.
  • the model specifications of the MS1004-R68M are especially suitable for the high-power output of the electronic cigarette, which avoids unnecessary waste.
  • the present invention also provides an electronic cigarette, the electronic
  • the smoke includes the electronic cigarette driving circuit of any of the above.

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  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
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Abstract

一种电子烟驱动电路，包括MCU、升降压驱动电路、电源；升降压驱动电路与MCU连接， MCU和升降压驱动电路分别与电源电路连接，升降压驱动电路包括分别与MCU连接的第一半桥驱动电路和第二半桥驱动电路，第一半桥驱动电路与第二半桥驱动电路通过电感连接；第一采样电路的一端连接电源给第一半桥驱动电路供电的输入端，第一采样电路的另一端连接MCU；第二采样电路的一端连接第二半桥驱动电路的输出端，第二采样电路的另一端连接MCU；采用上述方案，可以输出较大驱动功率以及可调节电子烟驱动电路的电压，提升电子烟产品性能。

Description

一种电子烟驱动电路及电子烟 技术领域
本实用新型涉及电子烟技术领域，更为具体地，涉及一种电子烟驱动电路。
背景技术
传统的电子烟驱动方案常采用MCU直接控制MOS管的开关时间的方式，或者采用升降压IC的方式来实现；但采用MCU直接控制MOS管的开关时间的方式，电路输出电压较低(不超过电池电压)，不能调节电压。采用升降压IC的方式虽然可以实现调压功能，但是输出功率也比较小，还是不能满足电子烟大功率输出的要求。随着用户需求的提高，对产品的口感、烟雾量以及产品可操作性方面的要求，传统的小功率电子烟驱动方案已经不能满足市场的需求。为此，需要开发一种输出较大功率以及可调节电压的方案来提升产品的性能。
实用新型内容
本实用新型的目的：提供一种电子烟驱动电路，可以输出较大驱动功率以及可调节电子烟驱动电路的电压，提升电子烟产品性能。
本实用新型采用的方案是：提供了一种电子烟驱动电路，包括MCU、升降压驱动电路、电源；所述升降压驱动电路与所述MCU连接，所述MCU和升降压驱动电路分别与所述电源电路连接，其特征在于：所述升降压驱动电 路包括分别与MCU连接的第一半桥驱动电路和第二半桥驱动电路，所述第一半桥驱动电路与第二半桥驱动电路通过电感连接；第一采样电路的一端连接所述电源给所述第一半桥驱动电路供电的输入端，第一采样电路的另一端连接所述MCU；第二采样电路的一端连接第二半桥驱动电路的输出端，第二采样电路的另一端连接所述MCU。
在其中一个实施方式中，所述第一半桥驱动电路包括：第一半桥驱动芯片、2个第一N型MOS管；所述第二半桥驱动电路包括：第二半桥驱动芯片、2个第二N型MOS管；其中，所述第一半桥驱动芯片、所述第二半桥驱动芯片分别与所述MCU连接，所述第一半桥驱动芯片、所述第二半桥驱动芯片还分别与所述升压电路输出端连接；第一半桥驱动芯片的输出端分别与2个第一N型MOS管连接，其中一个第一N型MOS管与所述电源连接；第二半桥驱动芯片的输出端分别与2个第二N型MOS管连接，其中一个第二N型MOS管的输出端为负载提供电压；2个所述第一N型MOS管串联后通过所述电感与2个串联后的所述第二N型MOS管相连。
在其中一个实施方式中，所述第一半桥驱动芯片和第二半桥驱动芯片为相同芯片。
在其中一个实施方式中，所述第一N型MOS管和第二N型MOS管为相同MOS管。
在其中一个实施方式中，所述电感为MS1004-R68M。
在其中一个实施方式中，所述第一半桥驱动芯片和第二半桥驱动芯片为ADP3110A。
在其中一个实施方式中，所述第一N型MOS管和第二N型MOS管是 SIRA04DP。
本新型还提出一种电子烟，上述任一所述的电子烟驱动电路。
本实用新型提供了一种电子烟驱动电路，包括MCU、升降压驱动电路、第一采样电路、第二采样电路、电源；所述升降压驱动电路与所述MCU连接，所述MCU和所述升降压驱动电路分别与所述电源连接，所述升降压驱动电路包括分别与MCU连接的第一半桥驱动电路、第二半桥驱动电路，所述第一半桥驱动电路与所述第二半桥驱动电路通过电感连接，所述第一采样电路的一端连接所述电源，所述第一采样电路的另一端连接所述MCU；所述第二采样电路的一端连接所述第二半桥驱动电路，所述第二采样电路的另一端连接所述MCU。
在其中一个实施方式中，所述第一半桥驱动电路包括，第一半桥驱动芯片、2个第一N型MOS管；所述第二半桥驱动电路包括，第二半桥驱动芯片、2个第二N型MOS管；所述第一半桥驱动芯片一端与所述MCU连接，另一端分别与2个所述第一N型MOS管连接，所述第二半桥驱动芯片一端与所述MCU连接，另一端分别与2个所述第二N型MOS管连接。
在其中一个实施方式中，包括升压电路，所述第一半桥驱动芯片、所述第二半桥驱动芯片还分别与所述升压电路的输出端连接。
在其中一个实施方式中，2个所述第一N型MOS管串联后通过所述电感与2个串联后的所述第二N型MOS管相连。
在其中一个实施方式中，还包括稳压电路，所述稳压电路一端与所述MCU连接，另一端与所述电源连接。
在其中一个实施方式中，所述第一半桥驱动芯片和第二半桥驱动芯片为 相同芯片，所述第一N型MOS管和第二N型MOS管为相同MOS管。
在其中一个实施方式中，所述电感为MS1004-R68M。
在其中一个实施方式中，所述第一半桥驱动芯片和第二半桥驱动芯片为ADP3110A。
在其中一个实施方式中，所述第一N型MOS管和第二N型MOS管是SIRA04DP。
一种电子烟，包括上述任一实施方式中所述的电子烟驱动电路。
利用上述方案，MCU利用第一采样电路采集所述电源给所述第一半桥驱动电路输入的电压以及第二采样电路采集所述第一半桥驱动电路的输出电压，发出所述第一电压控制指令以及第二电压控制指令；升压电路根据所述MCU的第一电压控制指令以提升所述升降压驱动电路的电压，为升降压驱动电路提供工作电压；升降压驱动电路根据所述第二电压控制指令来提升或者降低其负载电压，这样，只要通过MCU调节PWM占空比，就能达到提升输出电压的目的，并可以根据不同的需求调整输出电压的高低。从而可以输出较大驱动功率以及可调节电子烟驱动电路的电压，提升电子烟产品性能。另外MOS管选择的是SIRA04DP，它具有较小的导通电阻和较高的功率，在电子烟的功率转换中能最大限度的降低损耗。
为了实现上述以及相关目的，本实用新型的一个或多个方面包括后面将详细说明并在权利要求中特别指出的特征。下面的说明以及附图详细说明了本实用新型的某些示例性方面。然而，这些方面指示的仅仅是可使用本实用新型的原理的各种方式中的一些方式。此外，本实用新型旨在包括所有这些方面以及它们的等同物。
附图说明
根据下述参照附图进行的详细描述，本实用新型的上述和其他目的、特征和优点将变得更加显而易见。在附图中：
图1示出了本实用新型提出的一种电子烟驱动电路的一个结构示意图；
图2示出了本实用新型提出的一种电子烟驱动电路的另一个结构示意图；
图3示出了本实用新型提出的第一半桥驱动电路和第二半桥驱动电路的连接示意图。
在所有附图中相同的标号指示相似或相应的特征或功能。
零部件-标号对应表如下：
零部件 标号
第一半桥驱动芯片 U13
第二半桥驱动芯片 U14
第一N型MOS管 U10、U12
第二N型MOS管 U11、U15
电感 L1
电容 C5、C6、C8、C11、C14、C20、C30、C31
电阻 R47、R48
二极管 D5、D9
具体实施方式
下面描述本公开的各个方面。应该明白的是，本文的教导可以以多种多样形式具体体现，并且在本文中公开的任何具体结构、功能或两者仅仅是代表性的。基于本文的教导，本领域技术人员应该明白的是，本文所公开的一 个方面可以独立于任何其它方面实现，并且这些方面中的两个或多个方面可以按照各种方式组合。例如，可以使用本文所阐述的任何数目的方面，实现装置或实践方法。另外，可以使用其它结构、功能、或除了本文所阐述的一个或多个方面之外或不是本文所阐述的一个或多个方面的结构和功能，实现这种装置或实践这种方法。此外，本文所描述的任何方面可以包括权利要求的至少一个元素。
下面将参照附图描述本实用新型的各个实施例。
首先请参考图1，示出了其中一个结构示意图，一种电子烟驱动电路，包括：MCU、升降压驱动电路、电源、升压电路、稳压电路、第一采样电路以及第二采样电路；所述升降压驱动电路、所述升压电路、所述稳压电路分别与所述MCU连接，所述升降压驱动电路和MCU分别与所述电源电路连接；所述升压电路、所述稳压电路以及所述升降压驱动电路分别与所述电源连接；所述升压电路输出端连接所述升降压驱动电路；
所述升降压驱动电路包括分别与MCU连接的第一半桥驱动电路和第二半桥驱动电路，所述第一半桥驱动电路与第二半桥驱动电路通过电感连接；第一采样电路的一端连接所述电源给所述第一半桥驱动电路供电的输入端，第一采样电路的另一端连接所述MCU；第二采样电路的一端连接第二半桥驱动电路的输出端，第二采样电路的另一端连接所述MCU。
其中，所述电源为所述升压电路、所述稳压电路以及所述升降压驱动电路输入电压；所述稳压电路为所述MCU的提供稳定工作电压；所述升压电路用于接收所述MCU的第一电压控制指令以提升所述升降压驱动电路的电压，为所述升降压驱动电路提供工作电压；所述第一采样电路用于采集所述电源 给所述升降压驱动电路输入的电压(采集所述电源给所述第一半桥驱动电路供电的输入端电压)并反馈至所述MCU；所述第二采样电路用于采集所述升降压驱动电路的输出电压(采集第二半桥驱动电路的输出端电压)并反馈至所述MCU；所述MCU用于接收采样电路反馈的电压，根据所述反馈的电压来发出所述第一电压控制指令以及第二电压控制指令；所述升降压驱动电路用于根据所述第二电压控制指令来提升或者降低其负载电压。
利用上述方案，MCU利用第一采样电路采集所述电源给所述升降压驱动电路输入的电压以及第二采样电路采集所述升降压驱动电路的输出电压，发出所述第一电压控制指令以及第二电压控制指令；升压电路根据所述MCU的第一电压控制指令以提升所述升降压驱动电路的电压，为升降压驱动电路提供工作电压；升降压驱动电路根据所述第二电压控制指令来提升或者降低其负载电压，这样，只要通过MCU调节PWM占空比，就能达到提升输出电压的目的，并可以根据不同的需求调整输出电压的高低。从而可以实现输出较大驱动功率以及可调节电子烟驱动电路的电压，提升电子烟产品性能。
在其中一个实施方式中，如图2所示，所述第一半桥驱动电路包括：第一半桥驱动芯片、2个第一N型MOS管；所述第二半桥驱动电路包括：第二半桥驱动芯片、2个第二N型MOS管；其中，所述第一半桥驱动芯片、所述第二半桥驱动芯片分别与所述MCU连接，所述第一半桥驱动芯片、所述第二半桥驱动芯片还分别与所述升压电路输出端连接；第一半桥驱动芯片的输出端分别与2个第一N型MOS管连接，其中一个第一N型MOS管与所述电源连接；第二半桥驱动芯片的输出端分别与2个第二N型MOS管连接，其中一个第二N型MOS管的输出端为负载提供电压；2个所述第一N型MOS管串 联后通过所述电感与2个串联后的所述第二N型MOS管相连，需要说明的是本实施方式中，所述电感分别与2个所述第一N型MOS管和2个所述第二N型MOS管连接。
第一半桥驱动电路、所述第二半桥驱动电路的具体电路连接如图3所示。
所述第一半桥驱动电路包括第一半桥驱动芯片U13、电容C6、电容C8、电容C11、电容C14、二极管D9；2个第一N型MOS管U10、U12组成第一个半桥，该半桥的输入端到地之间通过所述电容C6、电容C11连接，用于对输入电压的滤波；2个第一N型MOS管U10、U12分别与第一半桥驱动芯片U13连接；第一半桥驱动芯片U13与所述升压电路连接，第一半桥驱动芯片U13与所述电容C8连接用于滤波；所述第一半桥驱动芯片U13的4号脚还经过所述二极管D9连接至1号脚，用于对与1号脚连接的所述电容C14充电，所述电容C14连接至上述半桥的输出端，并与第一半桥驱动芯片U13的7号脚连接；第一半桥驱动芯片U13的2号脚和3号脚分别连接至所述MCU，由所述MCU发送所述第二电压控制指令来对第一半桥驱动芯片U13进行控制输出；2个第一N型MOS管U10、U12组成第一个半桥和电感组合，起降压作用。
所述第二半桥驱动电路包括第二半桥驱动芯片U14、电容C5、电容C20、电容C30、电容C31、二极管D5；2个第二N型MOS管U11、U15组成二个半桥，该半桥的输入端到地之间通过所述电容C20、电容C30连接，用于对输入电压的滤波；2个第二N型MOS管U11、U15分别与第二半桥驱动芯片U14连接；第二半桥驱动芯片U14与所述升压电路连接，第二半桥驱动芯片U14与所述电容C5连接用于滤波；第二半桥驱动芯片U14的4号脚还经过所 述二极管D5连接至1号脚，用于对与1号脚连接的所述电容C31充电，所述电容C31连接至上述半桥的输出端，并与第二半桥驱动芯片U14的7号脚连接；第二半桥驱动芯片U14的2号脚和3号脚分别连接至所述MCU，由所述MCU发送所述第二电压控制指令来对第二半桥驱动芯片U14进行控制输出；上述两个半桥的输出端通过所述电感L1连接。2个第二N型MOS管U11、U15组成二个半桥和电感组合，起升压的作用。
具体的升降压过程，需要MCU通过半桥驱动电路控制MOS管的导通和关断时间来实现。MCU会根据采样得到的信息，来判断需要降压还是升压输出，不断地调整PWM控制信号，保证输出功率达到设定值。
在其中一个实施方式中，所述第一半桥驱动芯片U13和第二半桥驱动芯片U14为相同芯片。这里第一半桥驱动芯片U13和第二半桥驱动芯片U14选用的是ADP3110A，通过所述MOS驱动芯片，能加速MOS管的导通和管段，提高电源效率。当然只要能实现该功能的其他型号芯片也能使用。
在其中一个实施方式中，所述第一N型MOS管和第二N型MOS管为相同MOS管。这里的MOS管选择的是SIRA04DP，它具有较小的导通电阻和较高的功率，在电子烟的功率转换中能最大限度的降低损耗。
在其中一个实施方式中，所述电感为MS1004-R68M。具有频率范围广，耐大电流，磁屏蔽效果好等优点。当然这里不是对MOS管型号和电感的限定，只要能实现既定功能的其他型号元件也可以。另外，这两个元件可以决定产品的最大输出功率，选取MS1004-R68M的型号规格特别适用于电子烟的大功率输出，可避免造成不必要的浪费。
在另一未示出的实施例中，本实用新型还提供了一种电子烟，所述电子 烟包括上述任一种所述的电子烟驱动电路。
本领域技术人员还将明白的是，结合这里的公开所描述的各种示例性逻辑块、模块、电路和算法步骤可以被实现为电子硬件、计算机软件或两者的组合。为了清楚地说明硬件和软件的这种可互换性，已经就各种示意性组件、方块、模块、电路和步骤的功能对其进行了一般性的描述。这种功能是被实现为软件还是被实现为硬件取决于具体应用以及施加给整个系统的设计约束。本领域技术人员可以针对每种具体应用以各种方式来实现所述的功能，但是这种实现决定不应被解释为导致脱离本实用新型的范围。
尽管前面公开的内容示出了本实用新型的示例性实施例，但是应当注意，在不背离权利要求限定的本实用新型的范围的前提下，可以进行多种改变和修改。根据这里描述的实用新型实施例的方法权利要求的功能、步骤和/或动作不需以任何特定顺序执行。此外，尽管本实用新型的元素可以以个体形式描述或要求，但是也可以设想多个，除非明确限制为单数。
虽然如上参照图描述了根据本实用新型的各个实施例进行了描述，但是本领域技术人员应当理解，对上述本实用新型所提出的各个实施例，还可以在不脱离本实用新型内容的基础上做出各种改进。因此，本实用新型的保护范围应当由所附的权利要求书的内容确定。

Claims (19)

  1. 一种电子烟驱动电路，包括MCU、升降压驱动电路、电源、第一采样电路、第二采样电路；所述升降压驱动电路与所述MCU连接，所述MCU和所述升降压驱动电路分别与所述电源连接，其特征在于：所述升降压驱动电路包括分别与MCU连接的第一半桥驱动电路和第二半桥驱动电路，所述第一半桥驱动电路与所述第二半桥驱动电路通过电感连接；所述第一采样电路的一端连接所述电源给所述第一半桥驱动电路供电的输入端，所述第一采样电路的另一端连接所述MCU；所述第二采样电路的一端连接所述第二半桥驱动电路的输出端，所述第二采样电路的另一端连接所述MCU。
  2. 根据权利要求1所述的电子烟驱动电路，其特征在于，包括升压电路，所述第一半桥驱动电路包括：第一半桥驱动芯片、2个第一N型MOS管；所述第二半桥驱动电路包括：第二半桥驱动芯片、2个第二N型MOS管；其中，所述第一半桥驱动芯片、所述第二半桥驱动芯片分别与所述MCU连接，所述第一半桥驱动芯片、所述第二半桥驱动芯片还分别与所述升压电路的输出端连接；所述第一半桥驱动芯片的输出端分别与2个第一N型MOS管连接，其中一个第一N型MOS管与所述电源连接；第二半桥驱动芯片的输出端分别与2个第二N型MOS管连接，其中一个第二N型MOS管的输出端为负载提供电压；2个所述第一N型MOS管串联后通过所述电感与2个串联后的所述第二N型MOS管相连。
  3. 根据权利要求2所述的电子烟驱动电路，其特征在于，所述第一半桥驱动芯片和第二半桥驱动芯片为相同芯片。
  4. 根据权利要求2所述的电子烟驱动电路，其特征在于，所述第一N型 MOS管和第二N型MOS管为相同MOS管。
  5. 根据权利要求1所述的电子烟驱动电路，其特征在于，所述电感为MS1004-R68M。
  6. 根据权利要求1所述的电子烟驱动电路，其特征在于，还包括：稳压电路，所述稳压电路连接所述电源和所述MCU。
  7. 根据权利要求2所述的电子烟驱动电路，其特征在于，所述第一半桥驱动芯片和第二半桥驱动芯片为ADP3110A。
  8. 根据权利要求2所述的电子烟驱动电路，其特征在于，所述第一N型MOS管和第二N型MOS管是SIRA04DP。
  9. 一种电子烟，其特征在于，包括权利要求1-8中任一所述的电子烟驱动电路。
  10. 一种电子烟驱动电路，其特征在于：包括MCU、升降压驱动电路、第一采样电路、第二采样电路、电源；所述升降压驱动电路与所述MCU连接，所述MCU和所述升降压驱动电路分别与所述电源连接，所述升降压驱动电路包括分别与MCU连接的第一半桥驱动电路、第二半桥驱动电路，所述第一半桥驱动电路与所述第二半桥驱动电路通过电感连接，所述第一采样电路的一端连接所述电源，所述第一采样电路的另一端连接所述MCU；所述第二采样电路的一端连接所述第二半桥驱动电路，所述第二采样电路的另一端连接所述MCU。
  11. 根据权利要求10所述的电子烟驱动电路，其特征在于，所述第一半桥驱动电路包括，第一半桥驱动芯片、2个第一N型MOS管；所述第二半桥驱动电路包括，第二半桥驱动芯片、2个第二N型MOS管；所述第一半桥驱 动芯片一端与所述MCU连接，另一端分别与2个所述第一N型MOS管连接，所述第二半桥驱动芯片一端与所述MCU连接，另一端分别与2个所述第二N型MOS管连接。
  12. 根据权利要求11所述的电子烟驱动电路，其特征在于，包括升压电路，所述第一半桥驱动芯片、所述第二半桥驱动芯片还分别与所述升压电路的输出端连接。
  13. 根据权利要求11或12所述的电子烟驱动电路，其特征在于，2个所述第一N型MOS管串联后通过所述电感与2个串联后的所述第二N型MOS管相连。
  14. 根据权利要求10所述的电子烟驱动电路，其特征在于，还包括稳压电路，所述稳压电路一端与所述MCU连接，另一端与所述电源连接。
  15. 根据权利要求10所述的电子烟驱动电路，其特征在于，所述第一半桥驱动芯片和第二半桥驱动芯片为相同芯片，所述第一N型MOS管和第二N型MOS管为相同MOS管。
  16. 根据权利要求10所述的电子烟驱动电路，其特征在于，所述电感为MS1004-R68M。
  17. 根据权利要求11所述的电子烟驱动电路，其特征在于，所述第一半桥驱动芯片和第二半桥驱动芯片为ADP3110A。
  18. 根据权利要求11所述的电子烟驱动电路，其特征在于，所述第一N型MOS管和第二N型MOS管是SIRA04DP。
  19. 一种电子烟，其特征在于，包括权利要求10-19中任一项所述的电子烟驱动电路。
PCT/CN2017/096619 2016-08-10 2017-08-09 一种电子烟驱动电路及电子烟 WO2018028599A1 (zh)

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