WO2019144708A1 - 智能终端的马达控制装置及智能终端 - Google Patents

智能终端的马达控制装置及智能终端 Download PDF

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Publication number
WO2019144708A1
WO2019144708A1 PCT/CN2018/119718 CN2018119718W WO2019144708A1 WO 2019144708 A1 WO2019144708 A1 WO 2019144708A1 CN 2018119718 W CN2018119718 W CN 2018119718W WO 2019144708 A1 WO2019144708 A1 WO 2019144708A1
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Prior art keywords
motor
control device
circuit
switch
motor control
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PCT/CN2018/119718
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English (en)
French (fr)
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李珍华
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上海摩软通讯技术有限公司
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Publication of WO2019144708A1 publication Critical patent/WO2019144708A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

Definitions

  • the present invention relates to the field of motor control, and in particular to a motor control device and an intelligent terminal of an intelligent terminal.
  • the motor vibration of the intelligent terminal in the market mostly adopts long-vibration or constant-voltage vibration mode.
  • the motor will always consume more electric energy when vibrating.
  • the motor rotor In the constant-voltage vibration mode, the motor rotor will generate strong vibration and consume current. Significantly increased, also consumes more power, and the efficiency is also low, so both vibration modes affect the endurance of the intelligent terminal.
  • the technical problem to be solved by the present invention is to overcome the defects that the internal motor of the intelligent terminal in the prior art is generally long-vibration or constant-voltage vibration, such vibration consumes more electric energy, affects the endurance capability of the intelligent terminal, and provides an intelligent terminal. Motor control device and intelligent terminal.
  • the present invention provides a motor control device for an intelligent terminal, the motor control device including a processor and a motor circuit, the processor being electrically connected to the motor circuit, the processor for controlling the motor circuit to drive the motor Performing vibration, characterized in that the motor control device further comprises a switch circuit, the switch circuit is electrically connected to the processor, and the motor circuit is electrically connected to the motor through the switch circuit;
  • the processor is further configured to generate a switch control signal, the switch control signal is used to control on and off of the switch circuit, and when the switch control signal is at a high level, the switch circuit is in a path state; When the switch control signal is low, the switch circuit is in an open state.
  • the intermittent circuit of the motor circuit is realized only by adding the switch circuit and the switch circuit under the action of the switch control signal.
  • the driving that is, the motor is intermittently vibrated, thereby solving the problem that the long vibration or the constant voltage vibration of the motor consumes more electric energy.
  • the switching circuit only needs to be turned on and off under the control of the switch control signal.
  • the switch circuit can be realized by a circuit form with simple structure, low cost, low power consumption and small volume, thereby satisfying the intelligent terminal. Power, space and cost requirements.
  • the switching on and off generally has level state control, and the high level control switch is turned on or the low level control switch is turned on only by the conventional means in the art, the high voltage of the switch control signal is adopted in the solution.
  • the switching circuit is in a path state, and the low level of the switch control signal controls the switching circuit to be in an open state.
  • the switch circuit includes a first MOS power tube, a second MOS power tube, and a first resistor, and a gate of the first MOS power tube is electrically connected to the processor, the first MOS power tube a source connected to the signal ground, a drain of the first MOS power transistor being connected to a gate of the second MOS power transistor, a source of the second MOS power transistor and an output positive end of the motor circuit Connected, a drain of the second MOS power tube is connected to one end of the motor, and the other end of the motor is connected to an output negative end of the motor circuit, one end of the first resistor and the second MOS The gate of the power tube is connected, and the other end of the first resistor is connected to the source of the second MOS power tube.
  • the switch circuit further includes a second resistor, one end of the second resistor is connected to a gate of the first MOS power tube, and the other end of the second resistor is connected to a signal ground.
  • the motor control device further includes a third resistor, one end of the third resistor is connected to the output negative end of the motor circuit, and the other end of the third resistor is connected to the signal ground.
  • the motor control device further includes a first electrostatic diode and a second electrostatic diode, one end of the first electrostatic diode is connected to one end of the motor, and the other end of the first electrostatic diode is connected to a signal ground.
  • One end of the second electrostatic diode is connected to the other end of the motor, and the other end of the second electrostatic diode is connected to a signal ground.
  • the switch control signal comprises a PWM (Pulse Width Modulation) signal.
  • the duty cycle of the PWM signal is set in a range of 0 to 100%, so that different duty ratio values may be used for different applications.
  • the processor when generating the PWM signal, gradually increases the duty ratio of the PWM signal from zero to a preset duty value by a preset step.
  • the motor control device further includes a parameter setting module, the parameter setting module is configured to set a vibration parameter of the motor, the vibration parameter includes a vibration mode of the motor, and a corresponding to the vibration mode
  • the duty ratio of the PWM signal, the step value of the change of the duty ratio, and the stop interval corresponding to the vibration mode, the vibration mode includes a switch mode vibration mode and an external trigger vibration mode.
  • the PWM signal when in the power on/off mode, includes a 2 s high level
  • the value of the duty cycle of the PWM signal includes 50%.
  • the present invention also provides an intelligent terminal characterized by comprising the motor control device of the intelligent terminal according to any of the above.
  • the positive progress of the invention is that the invention realizes the intermittent vibration of the motor after the signal of the motor circuit driving motor is combined with the switch control signal by adding the switch circuit, which not only allows the user to find the vibration of the motor in time, but also significantly reduces the vibration.
  • the electric energy consumed by the motor vibration reduces the influence of the motor vibration on the endurance of the intelligent terminal.
  • the added switching circuit has a simple structure, low power consumption, small footprint, low cost, and can well satisfy the power consumption of the intelligent terminal. Space and cost requirements.
  • FIG. 1 is a schematic structural view of a motor control device of a smart terminal according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural view of a motor control device of a smart terminal according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a motor control device of a smart terminal according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of an intelligent terminal according to Embodiment 5 of the present invention.
  • the motor control device of the smart terminal includes a processor 11 and a motor circuit 12, and the processor 11 is electrically connected to the motor circuit 12, and the motor control device 1 further
  • the switch circuit 13 is included, the switch circuit 13 is electrically connected to the processor 11, the motor circuit 12 is electrically connected to the motor 2 through the switch circuit 13, the processor 11 is used to control the motor circuit 12 to drive the motor 2 to vibrate, and the processor 11 is also used to generate a switch control signal, the switch control signal is used to control the on/off of the switch circuit 13, when the switch control signal is at a high level, the switch circuit 13 is in a path state; when the switch control signal is at a low level, the switch circuit 13 is in an open state.
  • the switch circuit 13 by adding the switch circuit 13, the signal of the motor circuit 12 driving the motor 2 is combined with the switch control signal to realize the intermittent vibration of the motor 2, which enables the user to find the vibration of the motor 2 in time, and can The electric energy consumed by the vibration of the motor 2 is obviously reduced, thereby reducing the influence of the vibration of the motor 2 on the endurance of the smart terminal.
  • the added switch circuit 13 has the advantages of simple structure, low power consumption, small space occupation, low cost, etc. Well meet the power, space and cost requirements of smart terminals.
  • the motor control device of the smart terminal is a possible implementation manner of the motor control device 1 and its switch circuit 13 on the basis of the embodiment 1.
  • the switch circuit 13 includes a first MOS power transistor Q1, a second MOS power transistor Q2, and a first resistor R1.
  • the gate of the first MOS power transistor Q1 is electrically connected to the processor 11, and the source of the first MOS power transistor Q1 is connected to the signal ground GND.
  • the drain of the first MOS power transistor Q1 is connected to the gate of the second MOS power transistor Q2, the source of the second MOS power transistor Q2 is connected to the output positive terminal A of the motor circuit 12, and the drain of the second MOS power transistor Q2.
  • one end of the motor 2 is connected to the output negative terminal B of the motor circuit 12
  • one end of the first resistor R1 is connected to the gate of the second MOS power transistor Q2
  • the other end of the first resistor R1 is The source of the two MOS power transistors Q2 is connected.
  • the operating power of the processor 11 is generally 1.8V, and the driving power of the motor 2 is generally 3V, so that the first resistor R1 can be used, and on the one hand, when the first MOS power transistor Q1 is in an open state, The gate of the second MOS power transistor Q2 obtains a stable potential, that is, the first resistor R1 pulls up the gate of the second MOS power transistor Q2 to 3V, and on the other hand, solves the processor by pulling up the first resistor R1.
  • 11 has a problem that the power supply voltage of the motor 2 is different, thereby ensuring that the processor 11 and the motor circuit 12 can accurately drive the motor 2 to vibrate after passing through the switch circuit 13.
  • the switch circuit 13 further includes a second resistor R2, one end of which is connected to the gate of the first MOS power transistor Q1, and the other end of the second resistor R2 is connected to the signal ground GND.
  • the motor control device 1 further includes a third resistor R3, one end of which is connected to the output negative terminal B of the motor circuit 12, and the other end of the third resistor R3 is connected to the signal ground GND.
  • a suitable third resistor R3 it is advantageous to form a path between the output negative terminal B of the motor circuit 12 and the signal ground GND, thereby reducing the influence of interference.
  • the third resistor R3 has a zero ohm resistance, thereby flexibly connecting the output negative terminal B of the motor circuit 12 to the signal ground GND by using the zero ohm resistance characteristic, thereby facilitating flexible configuration of the circuit and improving the circuit. Anti-interference.
  • the motor control device of the smart terminal is a possible implementation of the motor control device 1 on the basis of the second embodiment.
  • the third resistor R3 may not be needed, and then A first electrostatic diode VT1 is connected between one end of the motor 2 and the signal ground GND, and a second electrostatic diode VT2 is connected between the other end of the motor 2 and the signal ground GND to achieve better electrostatic protection.
  • the motor control device 1 further includes a first electrostatic diode VT1 and a second electrostatic diode VT2, one end of the first electrostatic diode VT1 is connected to one end of the motor 2, and the other end of the first electrostatic diode VT1 is connected to the signal ground GND; One end of the second electrostatic diode VT2 is connected to the other end of the motor 2, and the other end of the second electrostatic diode VT2 is connected to the signal ground GND.
  • both the first electrostatic diode VT1 and the second electrostatic diode VT2 can preferably be bidirectional electrostatic diodes, such as the ESD5451 of Ansem, which has small volume, high electrostatic withstand value and low cost, and is very suitable for smart terminal pairs. Volume and cost requirements.
  • the present embodiment provides a possible implementation manner of the switch control signal for the motor control device of the smart terminal according to the first embodiment, the second embodiment, or the third embodiment.
  • the switch control signal is preferably a PWM signal.
  • the setting range of the duty ratio of the PWM signal may preferably be 0-100%, which is better adapted to the requirement of the duty ratio value for different applications.
  • the processor 11 controls the generation of the PWM signal, that is, when the processor 11 generates the PWM signal, the PWM signal is occupied.
  • the ratio of the air ratio is gradually increased from zero to the preset duty value according to the preset step value, which is equivalent to gradually increasing the drive tube in the switch circuit 13 for a period of time, such as 0.5 s (as in the embodiment 2 or implementation).
  • the discharge multiple of the second MOS power transistor Q2) in Example 3 realizes the soft start of the motor 2, avoiding a large instantaneous current.
  • the motor control device 1 further includes a parameter setting module (not shown for simplicity of the drawing) for setting the vibration parameter of the motor 2, the vibration parameter including the vibration mode of the motor 2, and a duty ratio of the PWM signal corresponding to the vibration mode, a change step value of the duty ratio, and a stop vibration interval corresponding to the vibration mode, the vibration mode including a switch mode vibration mode and an external trigger vibration mode.
  • the parameter setting page can be used to interact with the user in the smart terminal to implement setting of the vibration parameter.
  • the two vibration modes are exemplified here, that is, when the smart terminal is turned on or off, the vibration mode is the on/off mode, and in the on/off vibration mode, the PWM signal includes 2s high level and 2s low.
  • the level is such that the switch circuit 13 is in the path state by the high level of 2 s, so that the motor 2 vibrates, so that the user can sense the operation of the switch of the smart terminal.
  • the smart terminal is triggered by the outside world, such as an incoming call or a user touching the screen.
  • the vibration mode triggers the vibration mode for the outside, and when the vibration mode is triggered by the outside, the duty ratio of the PWM signal includes 50%, so that even if the call is in progress If the medium is not turned on for a long time, the power consumption of the vibration of the motor 2 on the smart terminal can be effectively reduced. It has been tested that, in the case where the incoming call is not turned on for a long time, when the value of the duty ratio of the PWM signal is 50%, the electric energy consumed by the vibration of the motor 2 is longer or constant than the original motor 2. The pressure vibration mode can be reduced by 50%.
  • the smart terminal according to the embodiment is a motor control device 1 according to any of the above embodiments, and provides a possible implementation manner of the smart terminal. As shown in FIG. 4, the smart terminal includes any one of the foregoing embodiments.
  • the motor control device 1 In the motor control device 1 described above, the motor control device 1 is electrically connected to the motor 2.
  • the motor circuit 12 controls the signal of the motor 2 in combination with the on-off state of the switch circuit 13, so that the intermittent vibration of the motor 2 can be realized.
  • the problem that the motor 2 inside the original intelligent terminal needs to consume more electric energy due to long vibration or constant voltage vibration is well solved, and the endurance capability of the intelligent terminal is improved.
  • the switching circuit 13 In view of the fact that the switching circuit 13 only needs to be turned on and off according to the level control of the switching control signal, the switching circuit 13 can be realized by a circuit form with simple structure, low cost, low power consumption and small volume, so that the switching circuit 13 can be satisfactorily satisfied.
  • the intelligent terminal has power, space and cost requirements.
  • the voltage values of "high level” and “low level” in the present invention are not particularly limited as long as the voltage value of the high level is higher than the voltage value of the low level.
  • a high level voltage value can be identified as a logic one and a low level voltage value can be identified as a logic zero.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

一种智能终端的马达控制装置及智能终端，其中马达控制装置包括处理器（11）和马达电路（12），处理器（11）与马达电路（12）电连接，处理器（11）用于控制马达电路（12）驱动马达（2）进行振动，马达控制装置还包括开关电路（13），开关电路（13）与处理器（11）电连接，马达电路（12）通过开关电路（13）与马达（2）电连接；处理器（11）还用于生成开关控制信号，开关控制信号用于控制开关电路（13）的通断，在开关控制信号为高电平时，开关电路（13）处于通路状态，在开关控制信号为低电平时，开关电路（13）处于断路状态。通过增加开关电路（13），并结合开关控制信号控制开关电路的通断，实现马达（2）的间歇式驱动，很好地解决马达的长振或恒压振动消耗较多电能问题，电路简单、成本低、功耗低、体积小，可很好地满足智能终端的要求。

Description

智能终端的马达控制装置及智能终端
本申请要求申请日为2018年1月26日的中国专利申请CN201810078972.0的优先权。本申请引用上述中国专利申请的全文。
技术领域
本发明涉及马达控制领域，特别涉及一种智能终端的马达控制装置及智能终端。
背景技术
市面上智能终端的马达振动多采用长振或恒电压振动模式，其中长振模式下马达一直振动将消耗比较多的电能，恒电压振动模式下，马达转子将产生强度较大的振动，耗流明显增大，同样也消耗比较多的电能，效率也低，所以这两种振动方式均影响了智能终端的续航能力。
发明内容
本发明要解决的技术问题是为了克服现有技术中智能终端内部马达一般为长振或恒压振动，这样的振动消耗较多电能，影响了智能终端的续航能力的缺陷，提供一种智能终端的马达控制装置及智能终端。
本发明是通过下述技术方案来解决上述技术问题：
本发明提供一种智能终端的马达控制装置，所述马达控制装置包括处理器和马达电路，所述处理器与所述马达电路电连接，所述处理器用于控制所述马达电路驱动所述马达进行振动，其特点是，所述马达控制装置还包括开关电路，所述开关电路与所述处理器电连接，所述马达电路通过所述开关电路与所述马达电连接；
所述处理器还用于生成开关控制信号，所述开关控制信号用于控制所述开关电路的通断，在所述开关控制信号为高电平时，所述开关电路处于通路 状态；在所述开关控制信号为低电平时，所述开关电路处于断路状态。
本方案中，在不改变所述马达电路的基础上，仅通过增加所述开关电路，以及所述开关电路在所述开关控制信号的作用下，实现所述马达电路对所述马达的间歇式驱动，即让所述马达进行间歇式振动，从而解决所述马达的长振或恒压振动消耗较多电能的问题。而所述开关电路只需在所述开关控制信号的控制下进行通断，这时可采用结构简单、低成本、低功耗、小体积的电路形式来实现所述开关电路，从而满足智能终端对功耗、空间及成本要求。
鉴于开关通断一般有电平状态控制，且高电平控制开关导通还是低电平控制开关导通仅是本领域的惯常手段，所以本方案中采用了：所述开关控制信号的高电平控制所述开关电路处于通路状态，所述开关控制信号的低电平控制所述开关电路处于断路状态。
可选地，所述开关电路包括第一MOS功率管、第二MOS功率管和第一电阻，所述第一MOS功率管的栅极与所述处理器电连接，所述第一MOS功率管的源极连接到信号地，所述第一MOS功率管的漏极与所述第二MOS功率管的栅极连接，所述第二MOS功率管的源极与所述马达电路的输出正端连接，所述第二MOS功率管的漏极与所述马达的一端连接，所述马达的另一端与所述马达电路的输出负端连接，所述第一电阻的一端与所述第二MOS功率管的栅极连接，所述第一电阻的另一端与所述第二MOS功率管的源极连接。
可选地，所述开关电路还包括第二电阻，所述第二电阻的一端与所述第一MOS功率管的栅极连接，所述第二电阻的另一端与信号地连接。
可选地，所述马达控制装置还包括第三电阻，所述第三电阻的一端与所述马达电路的输出负端连接，所述第三电阻的另一端与信号地连接。
可选地，所述马达控制装置还包括第一静电二极管和第二静电二极管，所述第一静电二极管的一端与所述马达的一端连接，所述第一静电二极管的另一端与信号地连接；所述第二静电二极管的一端与所述马达的另一端连接， 所述第二静电二极管的另一端与信号地连接。
可选地，所述开关控制信号包括PWM(脉冲宽度调制)信号。
可选地，所述PWM信号的占空比的设置范围为0～100％，这样不同应用可采用不同占空比数值。
可选地，所述处理器在生成所述PWM信号时，将所述PWM信号的占空比数值按预设步进值从零逐步增大到预设占空比数值。
可选地，所述马达控制装置还包括参数设置模块，所述参数设置模块用于设置所述马达的振动参数，所述振动参数包括所述马达的振动模式、与所述振动模式对应的所述PWM信号的占空比、所述占空比的变化步进值和与所述振动模式对应的停振间隔，所述振动模式包括开关机振动模式和外界触发振动模式。
可选地，当处于所述开关机模式时，所述PWM信号包括2s高电平；
和/或，当处于所述外界触发振动模式时，所述PWM信号的占空比的数值包括50％。
本发明还提供一种智能终端，其特点是，包括上述任一项所述的智能终端的马达控制装置。
本发明的积极进步效果在于：本发明通过增加开关电路，使得马达电路驱动马达的信号在结合开关控制信号后，实现马达间歇式振动，既能让用户及时发现马达的振动，又能明显地降低马达振动所消耗的电能，从而降低马达振动对智能终端续航能力的影响，所增加的开关电路结构简单，电路功耗低，占用空间小，成本小，可很好地满足智能终端对功耗、空间及成本的要求。
附图说明
图1为本发明的实施例1的智能终端的马达控制装置的结构示意图。
图2为本发明的实施例2的智能终端的马达控制装置的结构示意图。
图3为本发明的实施例3的智能终端的马达控制装置的结构示意图。
图4为本发明的实施例5的智能终端的结构示意图。
具体实施方式
下面通过实施例的方式进一步说明本发明，但并不因此将本发明限制在所述的实施例范围之中。
实施例1
如图1所示，本实施例涉及的智能终端的马达控制装置，所述马达控制装置1包括处理器11和马达电路12，处理器11与马达电路12电连接，所述马达控制装置1还包括开关电路13，开关电路13与处理器11电连接，马达电路12通过开关电路13与马达2电连接，处理器11用于控制马达电路12驱动马达2进行振动，处理器11还用于生成开关控制信号，所述开关控制信号用于控制开关电路13的通断，在所述开关控制信号为高电平时，开关电路13处于通路状态；在所述开关控制信号为低电平时，开关电路13处于断路状态。
本实施例中，通过增加开关电路13，使得马达电路12驱动马达2的信号在结合所述开关控制信号后，实现马达2的间歇式振动，既能让用户及时发现马达2的振动，又能明显地降低马达2振动所消耗的电能，从而降低马达2振动对智能终端续航能力的影响，所增加的开关电路13具有结构简单、电路功耗低、占用空间小、成本小等优点，可很好地满足智能终端对功耗、空间及成本的要求。
实施例2
本实施例涉及的智能终端的马达控制装置，是在实施例1的基础上，提供了马达控制装置1及其开关电路13的一种可能的实现方式，如图2所示，开关电路13包括第一MOS功率管Q1、第二MOS功率管Q2和第一电阻R1，第一MOS功率管Q1的栅极与处理器11电连接，第一MOS功率管Q1 的源极连接到信号地GND，第一MOS功率管Q1的漏极与第二MOS功率管Q2的栅极连接，第二MOS功率管Q2的源极与马达电路12的输出正端A连接，第二MOS功率管Q2的漏极与马达2的一端连接，马达2的另一端与马达电路12的输出负端B连接，第一电阻R1的一端与第二MOS功率管Q2的栅极连接，第一电阻R1的另一端与第二MOS功率管Q2的源极连接。
鉴于智能终端中，处理器11的工作电源一般为1.8V，而马达2的驱动电源一般为3V，这样可通过第一电阻R1，一方面在第一MOS功率管Q1处于断路状态时，可使第二MOS功率管Q2的栅极获得稳定的电位，即第一电阻R1将第二MOS功率管Q2的栅极上拉至3V，另一方面通过第一电阻R1的上拉，解决了处理器11与马达2的电源电压不同的问题，从而确保处理器11、马达电路12在通过开关电路13后能正确地驱动马达2进行振动。
还有，开关电路13还包括第二电阻R2，第二电阻R2的一端与第一MOS功率管Q1的栅极连接，第二电阻R2的另一端与信号地GND连接。通过第二电阻R2的下拉作用，即使处理器11输出所述开关控制信号的IO(输入输出接口)处于高阻态，也可确保第一MOS功率管Q1的栅极具有稳定低电位，从而确保开关电路13处于稳定的通路状态或断路状态。
另外，马达控制装置1还包括第三电阻R3，第三电阻R3的一端与马达电路12的输出负端B连接，第三电阻R3的另一端与信号地GND连接。这样，通过选择合适的第三电阻R3，有利于在马达电路12的输出负端B与信号地GND之间形成通路，降低干扰影响。特别是，可优选第三电阻R3为零欧姆电阻，从而利用零欧姆电阻特性，来灵活地将马达电路12的输出负端B与信号地GND的连接，既便于灵活地配置电路，还提高电路抗干扰性。
实施例3
本实施例涉及的智能终端的马达控制装置，是在实施例2的基础上，提供了马达控制装置1的一种可能的实现方式，如图3所示，可以不需要第三 电阻R3，然后在马达2的一端与信号地GND之间接入第一静电二极管VT1，以及在马达2的另一端与信号地GND之间接入第二静电二极管VT2，实现更好的静电保护。具体地，马达控制装置1还包括第一静电二极管VT1和第二静电二极管VT2，第一静电二极管VT1的一端与马达2的一端连接，第一静电二极管VT1的另一端与信号地GND连接；第二静电二极管VT2的一端与马达2的另一端连接，第二静电二极管VT2的另一端与信号地GND连接。
具体实施中，第一静电二极管VT1和第二静电二极管VT2均可优选双向的静电二极管，比如安森美公司的ESD5451，该静电二极管体积小、静电耐受值高、成本低，非常适合智能终端对体积和成本的要求。
实施例4
本实施例针对上述实施例1、实施例2或实施例3中涉及的智能终端的马达控制装置，提供了所述开关控制信号的一种可能的实现方式，所述开关控制信号优选PWM信号，通过所述PWM信号对开关电路13的控制，可更灵活地控制马达2的振动，更好地控制马达2的振动对电能的消耗。
在具体实施中，所述PWM信号的占空比的设置范围可优选为0～100％，这样更好地适应不同应用对占空比数值的需求。
具体实施时，针对马达2刚开始振动时存在瞬间大电流，这时可通过处理器11控制所述PWM信号的生成，即处理器11在生成所述PWM信号时，将所述PWM信号的占空比数值按预设步进值从零逐步增大到预设占空比数值，这样相当于在一段时间内比如0.5s，逐步加大开关电路13内的驱动管(如实施例2或实施例3中的第二MOS功率管Q2)的放电倍数，实现马达2软启动，避免了瞬间的大电流。
另外，马达控制装置1还包括参数设置模块(为图示简洁，图中未示出)，所述参数设置模块用于设置马达2的振动参数，所述振动参数包括马达2的振动模式、与所述振动模式对应的所述PWM信号的占空比、所述占空比的 变化步进值和与所述振动模式对应的停振间隔，所述振动模式包括开关机振动模式和外界触发振动模式。在具体实施时，可在智能终端中通过参数设置页面来与用户进行交互，实现对所述振动参数的设置。
为便于理解，这里针对两种振动模式进行举例，即智能终端进行开机或关机时，这时振动模式就为开关机模式，在开关机振动模式时，所述PWM信号包括2s高电平和2s低电平，这样通过2s高电平让开关电路13处于通路状态，从而让马达2进行振动，很好地让用户感知到对智能终端的开关机操作。而智能终端受到外界触发，如来电或用户触摸屏幕，这时振动模式就为外界触发振动模式，在外界触发振动模式时，所述PWM信号的占空比的数值包括50％，这样即使在来电中长时间未接通，也能有效地降低马达2的振动对智能终端的电能消耗。经测试，在来电中长时间未接通的情况下，在所述PWM信号的占空比的数值为50％时，马达2的振动所消耗的电能，相比原先马达2处于长振或恒压振动模式可降低50％。
实施例5
本实施例涉及的智能终端，是基于上述任一实施例的马达控制装置1，来提供智能终端的一种可能的实现方式，如图4所示，所述智能终端包括前述任意一项实施例中所述的马达控制装置1，马达控制装置1与马达2电连接。这样在不改变智能终端内的马达电路12的基础上，仅增加开关电路13，就使得马达电路12控制马达2的信号结合开关电路13的通断状态，就能实现马达2的间歇式振动，很好地解决了原先智能终端内部的马达2由于长振或恒压振动需要消耗较多电能的问题，提高智能终端的续航能力。鉴于开关电路13只需根据所述开关控制信号的电平控制进行通断，这样就可采用结构简单、低成本、低功耗、小体积的电路形式来实现开关电路13，从而很好地满足了智能终端对功耗、空间及成本要求。
需要说明的是，本发明中的“高电平”和“低电平”的电压值不做具体限定，只要高电平的电压值高于低电平的电压值即可。例如，高电平的电压值能够 被识别为逻辑1，而低电平的电压值能够被识别为逻辑0。
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应当理解，这仅是举例说明，本发明的保护范围是由所附权利要求书限定的。本领域的技术人员在不背离本发明的原理和实质的前提下，可以对这些实施方式做出多种变更或修改，但这些变更和修改均落入本发明的保护范围。

Claims (11)

  1. 一种智能终端的马达控制装置，所述马达控制装置包括处理器和马达电路，所述处理器与所述马达电路电连接，所述处理器用于控制所述马达电路驱动马达进行振动，其特征在于，所述马达控制装置还包括开关电路，所述开关电路与所述处理器电连接，所述马达电路通过所述开关电路与所述马达电连接；
    所述处理器还用于生成开关控制信号，所述开关控制信号用于控制所述开关电路的通断，在所述开关控制信号为高电平时，所述开关电路处于通路状态；在所述开关控制信号为低电平时，所述开关电路处于断路状态。
  2. 如权利要求1所述的智能终端的马达控制装置，其特征在于，所述开关电路包括第一MOS功率管、第二MOS功率管和第一电阻，所述第一MOS功率管的栅极与所述处理器电连接，所述第一MOS功率管的源极连接到信号地，所述第一MOS功率管的漏极与所述第二MOS功率管的栅极连接，所述第二MOS功率管的源极与所述马达电路的输出正端连接，所述第二MOS功率管的漏极与所述马达的一端连接，所述马达的另一端与所述马达电路的输出负端连接，所述第一电阻的一端与所述第二MOS功率管的栅极连接，所述第一电阻的另一端与所述第二MOS功率管的源极连接。
  3. 如权利要求2所述的智能终端的马达控制装置，其特征在于，所述开关电路还包括第二电阻，所述第二电阻的一端与所述第一MOS功率管的栅极连接，所述第二电阻的另一端与信号地连接。
  4. 如权利要求2所述的智能终端的马达控制装置，其特征在于，所述马达控制装置还包括第三电阻，所述第三电阻的一端与所述马达电路的输出负端连接，所述第三电阻的另一端与信号地连接。
  5. 如权利要求2-4中至少一项所述的智能终端的马达控制装置，其特征在于，所述马达控制装置还包括第一静电二极管和第二静电二极管，所述第 一静电二极管的一端与所述马达的一端连接，所述第一静电二极管的另一端与信号地连接；所述第二静电二极管的一端与所述马达的另一端连接，所述第二静电二极管的另一端与信号地连接。
  6. 如权利要求1-5中至少一项所述的智能终端的马达控制装置，其特征在于，所述开关控制信号包括PWM信号。
  7. 如权利要求6所述的智能终端的马达控制装置，其特征在于，所述PWM信号的占空比的设置范围为0～100％。
  8. 如权利要求6-7中至少一项所述的智能终端的马达控制装置，其特征在于，所述处理器在生成所述PWM信号时，将所述PWM信号的占空比数值按预设步进值从零逐步增大到预设占空比数值。
  9. 如权利要求6-8中至少一项所述的智能终端的马达控制装置，其特征在于，所述马达控制装置还包括参数设置模块，所述参数设置模块用于设置所述马达的振动参数，所述振动参数包括所述马达的振动模式、与所述振动模式对应的所述PWM信号的占空比、所述占空比的变化步进值和与所述振动模式对应的停振间隔，所述振动模式包括开关机振动模式和外界触发振动模式。
  10. 如权利要求9所述的智能终端的马达控制装置，其特征在于，当处于所述开关机模式时，所述PWM信号包括2s高电平；
    和/或，当处于所述外界触发振动模式时，所述PWM信号的占空比的数值包括50％。
  11. 一种智能终端，其特征在于，包括如权利要求1至10中至少一项所述的智能终端的马达控制装置。
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