CN217821305U

CN217821305U - Low-power consumption standby circuit

Info

Publication number: CN217821305U
Application number: CN202221177656.7U
Authority: CN
Inventors: 项方; 张涛; 邓伟文; 万利; 张灵泼
Original assignee: Foshan Pdskyline Electronics Technology Co ltd
Current assignee: Foshan Pdskyline Electronics Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-11-15
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to a low-power consumption standby circuit, including MCU control module, power control module, battery and adapter power module, voltage conversion module, remote control receiving module, switching on and shutting down and display module, bluetooth control module and motor control module, MCU control module is connected with power control module, remote control receiving module, switching on and shutting down and display module, bluetooth control module and motor control module respectively, and power control module is connected with battery and adapter power module and voltage conversion module respectively; the MCU control module controls the power supply control module to output or switch off the working voltage of the battery, the adapter power supply module and the voltage conversion module according to the output signals received from the remote control receiving module, the startup and shutdown display module, the Bluetooth control module and the motor control module. The power-on/off instruction of the battery-powered electronic product is detected, and the voltage supply of other units of the product is controlled, so that the ultra-low power consumption standby function is realized.

Description

Low-power consumption standby circuit

Technical Field

The utility model relates to the technical field of circuits, especially, relate to a low-power consumption standby circuit.

Background

With the progress and development of the scientific and technical level, the performance improvement of the single chip microcomputer chip is a change day by day, and a new method is provided for solving some technical problems. Many electronic products now have a battery-powered function, which requires that we must systematically solve the problems of low cost and low standby power consumption, especially for products with high energy consumption such as bluetooth. The existing circuit is high in cost of the whole system, or large in power consumption of the circuit, high in cost and not beneficial to product sales, battery power is easy to lose when the product is in standby for a long time due to large power consumption, and the requirement of the battery-powered electronic product for standby for a long time cannot be met, so that the use efficiency of the product is reduced, and the product is even damaged.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a low-power consumption standby circuit, it has effectively reduced the phenomenon that the electronic product caused the loss to battery power when long-time standby, has improved the availability factor and the security of product, effectively utilizes bluetooth chip's resource and has reduced the cost of product to overcome the weak point among the prior art.

A low power consumption standby circuit designed for this purpose, characterized by: the remote control system comprises an MCU control module, a power supply control module, a battery and adapter power supply module, a voltage conversion module, a remote control receiving module, a startup, shutdown and display module, a Bluetooth control module and a motor control module, wherein the MCU control module is respectively connected with the power supply control module, the remote control receiving module, the startup, shutdown and display module, the Bluetooth control module and the motor control module; the MCU control module controls the power supply control module to output or switch off the working voltage of the battery and adapter power supply module and the voltage conversion module according to the output signals received from the remote control receiving module, the startup, shutdown and display module, the Bluetooth control module and the motor control module.

The low-power-consumption standby circuit of the embodiment can be used for detecting the power-on wakeup and the power-off indication of the product and controlling the voltage supply of other units of the product, thereby realizing the ultra-low-power-consumption standby function.

The MCU control module comprises a chip U4, a capacitor C21, a resistor R23, a resistor R24 and a resistor R27, wherein a pin 1 of the chip U4 is connected with +3.3V working voltage and is connected with a first end of the capacitor C21, and a pin 8 of the chip U4 is grounded and is connected with a second end of the capacitor C21;

the POWER on/off and display module comprises a resistor R18, a resistor R20 and a POWER on/off key K _ POWER, the Bluetooth control module comprises a chip U2, a pin 2 of the chip U4 is connected with a second end of the resistor R23, a first end of the resistor R23 is connected with a second end of the resistor R18, a second end of the resistor R20 and a pin 21 of the chip U2, the first end of the resistor R18 is connected with +3.3V \_OUTworking voltage, the first end of the resistor R20 is connected with a second end of the POWER on/off key K _ POWER, and the first end of the key K _ POWER is grounded;

the motor control module comprises a resistor R22 and a resistor R28, wherein a pin 3 of the chip U4 is connected with a first end of the resistor R22, a pin 4 of the chip U4 is suspended, a pin 5 of the chip U4 is connected with a first end of the resistor R28, a pin 6 of the chip U4 is connected with a first end of the resistor R27, and a second end of the resistor R27 is connected with a pin 27 of the chip U2;

the remote control receiving module comprises a resistor R30, a pin 7 of the chip U4 is connected with a first end of the resistor R24, and a second end of the resistor R24 is connected with a first end of the resistor R30 and a pin 32 of the chip U2;

the chip U4 is a program control chip and has the model number of MC30P6280A0H-SOP8;

the chip U2 is a Bluetooth chip and is AC6966B-GFN32 in model number.

The power supply control module comprises a triode Q2, a triode Q3, a field effect transistor Q1, a field effect transistor Q5, a resistor R1, a resistor R2, a resistor R3, a resistor R21, a resistor R22, a resistor R26, a resistor R28, a resistor R30, a resistor R31 and a capacitor C9;

the emitting electrode of the triode Q3 and the first end of the resistor R31 are connected with +3.3V working voltage, and the base stage of the triode Q3 is connected with the second end of the resistor R31, the second end of the resistor R30 and the second end of the resistor R28;

the motor control module comprises a socket CN2, and a collector of the triode Q3 is connected with a first end of the resistor R3 and a pin 2 of the socket CN 2;

the base stage of the triode Q2 is connected with the second end of the resistor R3 and the first end of the resistor R26, the emitter of the triode Q2 and the second end of the resistor R26 are both grounded, and the collector of the triode Q2 is connected with the first end of the resistor R2 and the first end of the resistor R1;

the grid electrode of the field effect transistor Q1 is connected with the second end of the resistor R2, the source electrode of the field effect transistor Q1 and the second end of the resistor R1 are both connected with +5V working voltage, the drain electrode of the field effect transistor Q1 is connected with the positive electrode of the capacitor C9, and the negative electrode of the capacitor C9 is grounded;

the grid electrode of the field effect transistor Q5 is connected with the second end of the resistor R21 and the second end of the resistor R22, and the source electrode of the field effect transistor Q5 is connected with the first end of the resistor R21 and the +3.3V working voltage

And the drain electrode of the field effect tube Q5 is connected with +3.3V _OUTworking voltage.

Battery and adapter power module includes socket J1, socket J2, diode D1 and electric capacity C1, socket J1's 1 foot with 2 feet of socket J2 are connected, socket J1's 2 feet with electric capacity C1's second end is all ground connection, electric capacity C1's first end with socket J1's 3 feet, diode D1's positive pole and 5V operating voltage connect, socket J2's 1 foot with diode D1's negative pole is connected.

The voltage conversion module comprises a three-terminal voltage stabilization chip U1 and a capacitor C3, wherein the input end of the three-terminal voltage stabilization chip U1 is connected with +5V working voltage, the output end of the three-terminal voltage stabilization chip U1 is connected with the anode of the capacitor C3 and +3.3V working voltage, and the cathode of the capacitor C3 is grounded.

The remote control receiving module further comprises an infrared remote control receiving head IR1, and a 1-pin output signal of the infrared remote control receiving head IR1 is respectively connected with a 32 pin of the chip U2 and a second end of the resistor R24.

The motor control module further comprises a motor driving chip U3, a capacitor C7, a capacitor C16 and a resistor R4, wherein the first end of the capacitor C7 is connected with pin 1 of the motor driving chip U3, the second end of the capacitor C7 is connected with pin 4 of the motor driving chip U3, the first end of the capacitor C16 is connected with pin 8 of the motor driving chip U3, the second end of the capacitor C16 is connected with +5V working voltage, and

pins

2 and 3 of the motor driving chip U3 are respectively connected with +5V working voltage; the first end of the resistor R4 is connected with the pin 4 of the socket CN2, and the second end of the resistor R4 is grounded; the motor driving chip U3 is L9110S-SOP8.

The startup, shutdown and display module further comprises a resistor R15 and a light-emitting diode LD7, wherein the anode of the light-emitting diode LD7 is connected with +3.3V _OUTworking voltage, and the first end of the resistor R15 is connected with the cathode of the light-emitting diode LD 7.

The low-power-consumption standby circuit of the embodiment comprises an MCU control module, a power supply control module, a battery and adapter power supply module, a voltage conversion module, a remote control receiving module, a startup, shutdown and display module, a Bluetooth control module and a motor control module; the MCU control module is connected with the power supply control module and is used for detecting relevant signals output by the remote control receiving module, the startup, shutdown and display module, the Bluetooth control module and the motor control module, so that the power supply control module is controlled to output and shut down +5V working voltage and +3.3V working voltage of the battery, the adapter power supply module and the voltage conversion module by the output signals, startup awakening and shutdown indication of the battery power supply electronic product are detected, voltage supply of other units of the product is controlled, and the ultralow power consumption of a chip U4 adopted by the MCU control module during low-frequency-band working is utilized, so that the low-power-consumption standby performance of the system is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a circuit diagram of the MCU control module and the power control module according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of a power supply module for a battery and an adapter according to an embodiment of the present invention.

Fig. 3 is a circuit diagram of a voltage conversion module according to an embodiment of the present invention.

Fig. 4 is a circuit diagram of a remote control receiving module according to an embodiment of the present invention.

Fig. 5 is a circuit diagram of a power on/off and display module according to an embodiment of the present invention.

Fig. 6 is a circuit diagram of a bluetooth control module according to an embodiment of the present invention.

Fig. 7 is a circuit diagram of a motor control module according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1-7, a low power consumption standby circuit is provided, which includes an MCU control module, a power control module, a battery and adapter power supply module, a voltage conversion module, a remote control receiving module, a power on/off and display module, a bluetooth control module and a motor control module, wherein the MCU control module is respectively connected to the power control module, the remote control receiving module, the power on/off and display module, the bluetooth control module and the motor control module, and the power control module is respectively connected to the battery and adapter power supply module and the voltage conversion module; the MCU control module controls the power supply control module to output or switch off the working voltage of the battery, the adapter power supply module and the voltage conversion module according to the output signals received from the remote control receiving module, the startup and shutdown display module, the Bluetooth control module and the motor control module.

Specifically, the MCU control module is used for detecting relevant signals output by the remote control receiving module, the startup and shutdown and display module, the Bluetooth control module and the motor control module, so that the output signals control the power supply control module to output and turn off +5V working voltage and +3.3V working voltage of the battery, the adapter power supply module and the voltage conversion module, and the low-power-consumption standby performance of the system is realized by utilizing the ultra-low power consumption of a chip U4 adopted by the MCU control module during the low-frequency operation.

Further, as shown in fig. 1, the MCU control module includes a chip U4, a capacitor C21, a resistor R23, a resistor R24, and a resistor R27, in this embodiment, the model of the chip U4 is MC30P6280A0H-SOP8, the chip U4 is a low-cost 8-bit single chip microcomputer chip capable of adjusting a main clock of a normal operating system, and when the chip U4 works at a power voltage of 3.3V and the system main clock of 250KHz, the power consumption is less than 200uA, so that when the chip U4 detects that a product needs to enter a standby function, the chip U controls the power control module to cut off a power supply of other modules of the product that are not needed, thereby implementing a low-power standby function of the whole product. Through actual measurement, the standby power consumption of the embodiment is 800uA, and the requirement of the low-power standby function of the product is completely met;

a pin 1 of the chip U4 is connected with +3.3V working voltage and is connected with a first end of the capacitor C21, and a pin 8 of the chip U4 is grounded and is connected with a second end of the capacitor C21; the capacitor C21 has a filtering function on a power supply connected to the chip U4, and clutter is prevented from interfering with the normal operation of the chip U4;

as shown in fig. 1 and fig. 6, the POWER on/off and display module includes a resistor R18, a resistor R20 and a POWER on/off key K _ POWER, the bluetooth control module includes a chip U2, pin 2 of the chip U4 is connected to the second end of the resistor R23, the first end of the resistor R23 is connected to the second end of the resistor R18, the second end of the resistor R20 and pin 21 of the chip U2, the first end of the resistor R18 is connected to +3.3v \_out operating voltage, the first end of the resistor R20 is connected to the second end of the POWER on/off key K _ POWER, and the first end of the key K _ POWER is grounded;

as shown in fig. 1 and 7, the motor control module includes a resistor R22 and a resistor R28, a pin 3 of the chip U4 is connected to a first end of the resistor R22, a pin 4 of the chip U4 is suspended, a pin 5 of the chip U4 is connected to a first end of the resistor R28, a pin 6 of the chip U4 is connected to a first end of the resistor R27, and a second end of the resistor R27 is connected to a pin 27 of the chip U2;

as shown in fig. 1 and 4, the remote control receiving module includes a resistor R30, a pin 7 of the chip U4 is connected to a first terminal of the resistor R24, and a second terminal of the resistor R24 is connected to a first terminal of the resistor R30 and a pin 32 of the chip U2.

Further, as shown in fig. 1, the power control module includes a transistor Q2, a transistor Q3, a field effect transistor Q1, a field effect transistor Q5, a resistor R1, a resistor R2, a resistor R3, a resistor R21, a resistor R22, a resistor R26, a resistor R28, a resistor R30, a resistor R31, and a capacitor C9; the power supply control module outputs and cuts off the +5V working voltage and the +3.3V working voltage of the battery, the adapter power supply module and the voltage conversion module according to the received instruction sent by the MCU control module

An emitting electrode of the triode Q3 and a first end of the resistor R31 are connected with +3.3V working voltage, and a base stage of the triode Q3 is connected with a second end of the resistor R31, a second end of the resistor R30 and a second end of the resistor R28;

as shown in fig. 1 and 7, the motor control module includes a socket CN2, and a collector of the transistor Q3 is connected to a first end of the resistor R3 and a pin 2 of the socket CN 2;

the base level of the triode Q2 is connected with the second end of the resistor R3 and the first end of the resistor R26, the emitting electrode of the triode Q2 and the second end of the resistor R26 are both grounded, and the collecting electrode of the triode Q2 is connected with the first end of the resistor R2 and the first end of the resistor R1;

the grid electrode of the field effect transistor Q1 is connected with the second end of the resistor R2, the source electrode of the field effect transistor Q1 and the second end of the resistor R1 are both connected with +5V working voltage, the drain electrode of the field effect transistor Q1 is connected with the anode of the capacitor C9, and the cathode of the capacitor C9 is grounded. The drain electrode of the field effect tube Q1 provides +3.3V _OUTworking voltage for the system. The capacitor C9 makes the voltage output more stable.

The gate of the field effect transistor Q5 is connected with the second end of the resistor R21 and the second end of the resistor R22, and the source of the field effect transistor Q5 is connected with the first end of the resistor R21 and the +3.3V working voltage

The drain of the field effect transistor Q5 is connected to a +3.3v _outoperating voltage.

Specifically, the battery and adapter power supply module is externally connected with a battery or a DC5V adapter, +5V working voltage is output, and +3.3V working voltage is output through the voltage conversion module, a chip U4 of the MCU control module is powered on to start working, a main clock of a chip U4 system is set to be in a 250KHz working mode, and at the moment, the power consumption of the chip U4 is less than 200uA; the pin 3 and the pin 5 of the program control chip U4 output high levels, the P-channel field effect transistor Q5 is not conducted, the power supply control module does not output +3.3V _OUTworking voltage, meanwhile, the PNP triode Q3 is not conducted, the base of the NPN triode Q2 is low level, the NPN triode Q2 is not conducted, therefore, the grid of the P-channel field effect transistor Q1 is high level, the field effect transistor Q1 is not conducted, and the power supply control module does not output +5V +2 working voltage; at the moment, only the chip U4, the three-terminal voltage stabilizing chip U1, the motor driving chip U3 and other auxiliary circuits work in the whole system, the power consumption of the whole system is about 800uA, and the system enters a low-power-consumption standby working mode.

Under a low-POWER-consumption standby working mode, pin 2 of the chip U4 is at a high level at ordinary times, when a user presses a POWER on/off key K _ POWER, pin 2 of the chip U4 is at a low level at ordinary times, when the MCU control module program judges that a real POWER on instruction is sent, pin 3 and pin 5 of the program control chip U4 output low levels, the P-channel field effect tube Q5 is conducted, the POWER control module outputs +3.3v OUT working voltage, meanwhile, the PNP triode Q3 is conducted, the base of the NPN triode Q2 is at a high level, the NPN triode Q2 is conducted, so that the grid of the P-channel field effect tube Q1 is at a low level, the field effect tube Q1 is conducted, the POWER control module outputs +5v +2 working voltage, and the system enters a normal working mode; similarly, in a low-power-consumption standby working mode, if a command sent by a user through a remote controller is received by the infrared remote control receiving head IR1 and then sent to the MCU control module, and the chip U4 receives a starting-up wake-up signal sent by the remote controller, the power supply control module outputs working voltage to other modules of the system according to the operation instructions, so that the whole system enters a normal working state.

Under a normal working mode, if a user presses a POWER on/off key K _ POWER or operates a remote controller to send a POWER off instruction, when a chip U2 program on a Bluetooth control module judges that the POWER off instruction is really sent, a pin 27 of the chip U2 outputs a high level to a pin 6 of a chip U4 on an MCU control module, the chip U4 program judges that the POWER off instruction of the user is received, a pin 3 and a pin 5 of the chip U4 are controlled by the program to output high levels, a P-channel field effect tube Q5 is not conducted, a POWER supply control module does not output +3.3V_OUT working voltage, meanwhile, a PNP triode Q3 is not conducted, a base electrode of the NPN triode Q2 is a low level, the NPN triode Q2 is not conducted, therefore, a grid electrode of the P-channel field effect tube Q1 is a high level, the field effect tube Q1 is not conducted, the POWER supply control module does not output +5V +2 working voltage, and the system enters a low-POWER-consumption standby working mode.

Further, as shown in fig. 2, the battery and adapter power supply module includes a socket J1, a socket J2, a diode D1 and a capacitor C1, pin 1 of the socket J1 is connected to pin 2 of the socket J2, pin 2 of the socket J1 and a second end of the capacitor C1 are both grounded, a first end of the capacitor C1 is connected to pin 3 of the socket J1, an anode of the diode D1 and a 5V operating voltage, and pin 1 of the socket J2 is connected to a cathode of the diode D1.

It should be noted that the diode D1 is used for reverse battery protection, and the capacitor C1 plays a role of filtering. The circuit is externally connected with a battery or is powered by a 5V adapter, and a 5V direct-current power supply is provided for the whole system.

Further, as shown in fig. 3, the voltage conversion module includes a three-terminal regulator chip U1 and a capacitor C3, an input terminal of the three-terminal regulator chip U1 is connected to the +5V operating voltage, an output terminal of the three-terminal regulator chip U1 is connected to the positive electrode of the capacitor C3 and the +3.3V operating voltage, and the negative electrode of the capacitor C3 is grounded.

Specifically, the three-terminal regulator chip U1 is 7533, the +5V operating voltage is connected to the input terminal of the three-terminal regulator chip U1, and the +3.3V operating voltage is stably output after the output terminal of the three-terminal regulator chip U1 is filtered by the capacitor C3.

Further, as shown in fig. 4, the remote control receiving module further includes an infrared remote control receiving head IR1, and the 1-pin output signal of the infrared remote control receiving head IR1 is respectively connected to the 32 pins of the chip U2 and the second end of the resistor R24. The user uses the order that the remote controller sent out to send to MCU control module and bluetooth control module after infrared remote control receiving head IR1 receives, if the chip U4 of MCU control module receives the start-up wake-up signal that the remote controller sent out in the system standby state, instruct to make the power control module output operating voltage to other modules of system, let the whole system enter normal operating condition.

Further, as shown in fig. 7, the motor control module further includes a motor driving chip U3, a capacitor C7, a capacitor C16, and a resistor R4, a first end of the capacitor C7 is connected to pin 1 of the motor driving chip U3, a second end of the capacitor C7 is connected to pin 4 of the motor driving chip U3, a first end of the capacitor C16 is connected to pin 8 of the motor driving chip U3, a second end of the capacitor C16 is connected to +5V operating voltage, and pins 2 and 3 of the motor driving chip U3 are respectively connected to +5V operating voltage; the first end of the resistor R4 is connected with the pin 4 of the socket CN2, and the second end of the resistor R4 is grounded.

Specifically, the motor driving chip U3 adopted in the present embodiment is L9110S-SOP8. The motor control module controls the external motor to realize the functions required by the product.

Further, as shown in fig. 5, the power on/off and display module further includes a resistor R15 and a light emitting diode LD7, an anode of the light emitting diode LD7 is connected to the +3.3v_out operating voltage, and a first end of the resistor R15 is connected to a cathode of the light emitting diode LD 7.

If a user presses a POWER-on/off key K _ POWER in a system standby state, the level of a pin 2 of a chip U4 of the MCU control module is changed into a low level, and the MCU control module indicates that the POWER supply control module outputs working voltage to enable the whole system to enter a normal working state; if a user presses a POWER-on/off key K _ POWER under the POWER-on state of the system, the Bluetooth control module receives a POWER-off signal, 27 pins of a Bluetooth chip U2 output high levels to the MCU control module and the POWER supply control module, the MCU control module is grounded to output a POWER-off instruction, 5 pins and 3 pins of a chip U4 output high levels, the POWER supply control module is controlled to stop outputting +5V and +3.3V working voltages to other modules of the system, and the system enters a low-POWER-consumption standby working state.

Further, as shown in fig. 6, the bluetooth control module further includes a crystal oscillator Y1, a capacitor C2, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C11, a capacitor C12, and a capacitor C15, the bluetooth chip U2 used in this embodiment is AC 696B-GFN 32, which is a powerful and low-cost chip that allows a user to perform secondary programming, and it is used to control other modules of the system to implement the required function output of the product, thereby greatly reducing the production cost of the whole product.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A low-power consumption standby circuit is characterized in that: the remote control system comprises an MCU control module, a power supply control module, a battery and adapter power supply module, a voltage conversion module, a remote control receiving module, a startup, shutdown and display module, a Bluetooth control module and a motor control module, wherein the MCU control module is respectively connected with the power supply control module, the remote control receiving module, the startup, shutdown and display module, the Bluetooth control module and the motor control module; the MCU control module controls the power supply control module to output or switch off the working voltage of the battery and adapter power supply module and the voltage conversion module according to the output signals received from the remote control receiving module, the startup, shutdown and display module, the Bluetooth control module and the motor control module.

2. The low power consumption standby circuit of claim 1, wherein: the MCU control module comprises a chip U4, a capacitor C21, a resistor R23, a resistor R24 and a resistor R27, wherein a pin 1 of the chip U4 is connected with +3.3V working voltage and is connected with a first end of the capacitor C21, and a pin 8 of the chip U4 is grounded and is connected with a second end of the capacitor C21;

the chip U2 is a Bluetooth chip and is AC6966B-GFN32 in model number.

3. The low power consumption standby circuit of claim 1, wherein: the power supply control module comprises a triode Q2, a triode Q3, a field effect transistor Q1, a field effect transistor Q5, a resistor R1, a resistor R2, a resistor R3, a resistor R21, a resistor R22, a resistor R26, a resistor R28, a resistor R30, a resistor R31 and a capacitor C9;

the base of the triode Q2 is connected with the second end of the resistor R3 and the first end of the resistor R26, the emitter of the triode Q2 and the second end of the resistor R26 are both grounded, and the collector of the triode Q2 is connected with the first end of the resistor R2 and the first end of the resistor R1;

the grid electrode of the field effect transistor Q5 is connected with the second end of the resistor R21 and the second end of the resistor R22, and the source electrode of the field effect transistor Q5 and the first end of the resistor R21 are connected with the drain electrode of the field effect transistor Q5 through +3.3V _OUTworking voltage.

4. A low power consumption standby circuit according to claim 1, wherein: battery and adapter power module includes socket J1, socket J2, diode D1 and electric capacity C1, socket J1's 1 foot with 2 feet of socket J2 are connected, socket J1's 2 feet with electric capacity C1's second end is all ground connection, electric capacity C1's first end with socket J1's 3 feet, diode D1's positive pole and 5V operating voltage connect, socket J2's 1 foot with diode D1's negative pole is connected.

5. The low power consumption standby circuit of claim 1, wherein: the voltage conversion module comprises a three-terminal voltage stabilization chip U1 and a capacitor C3, wherein the input end of the three-terminal voltage stabilization chip U1 is connected with +5V working voltage, the output end of the three-terminal voltage stabilization chip U1 is connected with the anode of the capacitor C3 and +3.3V working voltage, and the cathode of the capacitor C3 is grounded.

6. The low power consumption standby circuit of claim 2, wherein: the remote control receiving module further comprises an infrared remote control receiving head IR1, and a 1-pin output signal of the infrared remote control receiving head IR1 is respectively connected with a 32 pin of the chip U2 and a second end of the resistor R24.

7. The low power consumption standby circuit of claim 3, wherein: the motor control module further comprises a motor driving chip U3, a capacitor C7, a capacitor C16 and a resistor R4, wherein the first end of the capacitor C7 is connected with pin 1 of the motor driving chip U3, the second end of the capacitor C7 is connected with pin 4 of the motor driving chip U3, the first end of the capacitor C16 is connected with pin 8 of the motor driving chip U3, the second end of the capacitor C16 is connected with +5V working voltage, and pins 2 and 3 of the motor driving chip U3 are respectively connected with +5V working voltage; the first end of the resistor R4 is connected with the pin 4 of the socket CN2, and the second end of the resistor R4 is grounded; the model of the motor driving chip U3 is L9110S-SOP8.

8. A low power consumption standby circuit according to claim 2, wherein: the startup, shutdown and display module further comprises a resistor R15 and a light-emitting diode LD7, wherein the anode of the light-emitting diode LD7 is connected with +3.3V _OUTworking voltage, and the first end of the resistor R15 is connected with the cathode of the light-emitting diode LD 7.