An energy-saving circuit, electronic product and usage method

Abstract

The present invention discloses an energy-saving circuit, an electronic product and a usage method, which include a switching device, a conducting device and a controller. An external port is arranged between the switching device and the conducting device. The external port includes a high-level terminal and a low-level terminal, wherein: one end of the switching device is used to connect to a power supply, and the other end is connected to the high-level terminal; one end of the conducting device is connected to the low-level terminal, and the other end is grounded; the switching device, the external port and the conducting device are connected in series in sequence; the switching device has two states: closed and open circuit; the conducting device has two states: conducting and open circuit; one end of the controller is connected to the conducting device, and the other end is connected between the switching device and the high-level terminal.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conservation, and more specifically, to an energy-saving circuit, an electronic product and a usage method thereof. Background Art

[0002] The structure of an electronic product usually includes components that implement its core functions and components for optimizing and maintaining the electronic product. During the use of the electronic product, both the components that implement its core functions and the components for optimizing and maintaining the electronic product will work continuously, and both consume electric energy. On the premise of ensuring the continuous operation of the electronic product, the electronic product needs to frequently replace the battery, which not only increases the cost but also brings pressure to waste disposal, and does not conform to the concept of energy conservation and environmental protection. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an energy-saving circuit, an electronic product applying the energy-saving circuit, and a usage method of using the electronic product.

[0004] The first aspect of the present invention provides an energy-saving circuit, including a switching device, a conducting device, and a controller. An external port is provided between the switching device and the conducting device. The external port includes a high-level terminal and a low-level terminal, wherein:

[0005] One end of the switching device is used to connect to a power supply, and the other end is connected to the high-level terminal;

[0006] One end of the conducting device is connected to the low-level terminal, and the other end is grounded;

[0007] The switching device, the external port, and the conducting device are connected in series in sequence;

[0008] The switching device has two states: closed and open;

[0009] The conducting device has two states: conducting and open;

[0010] One end of the controller is connected to the conducting device, and the other end is connected between the switching device and the high-level terminal.

[0011] Preferably, in the content of the present application, the controller controls the state of the conducting device by reading the state of the switching device.

[0012] Preferably, in the content of the present application, a resistor R3 is provided between the conducting device and the low-level terminal, and the low-level terminal, the resistor R3, and the conducting device are connected in series in sequence. The setting of the resistor R3 plays a voltage-dividing role and is used to stabilize and protect the circuit when the voltage input is overloaded.

[0013] Preferably, in the content of the present application, the conducting device is provided with a protection device.

[0014] Preferably, in the content of the present application, the conduction device includes an enhancement-mode NMOS transistor. The gate of the enhancement-mode NMOS transistor is connected to the controller, the drain of the enhancement-mode NMOS transistor is connected to the low-level terminal, and the source of the enhancement-mode NMOS transistor is connected to the circuit output terminal. When the switching device is closed and the controller outputs a high level to the enhancement-mode NMOS transistor, the resistance of the enhancement-mode NMOS transistor is small, and the circuit where it is located is conducting. When the above two conditions are not met, the resistance of the enhancement-mode NMOS transistor is infinite, and the circuit where it is located is open.

[0015] Preferably, in the content of the present application, the protection device includes a resistor R4. The two ends of the resistor R4 are respectively connected to the gate and the source of the enhancement-mode NMOS transistor. The function of the resistor R4 is to discharge the static electricity accumulated on the gate and the source, and avoid the static electricity accumulated on the gate and the source forming a high voltage to cause the enhancement-mode NMOS transistor to malfunction.

[0016] Preferably, in the content of the present application, the energy-saving circuit further includes a voltage-dividing circuit. One end of the voltage-dividing circuit is connected between the switching device and the high-level terminal, and the other end is grounded.

[0017] Preferably, in the content of the present application, the controller reads the state of the switching device through the voltage-dividing circuit. Reading the state of the switching device through the voltage-dividing circuit can avoid damage to the controller caused by overloading of the voltage input.

[0018] Preferably, in the content of the present application, the voltage-dividing circuit includes a resistor R1 and a resistor R2. The resistor R1 and the resistor R2 are connected in series. One end of the resistor R1 away from the resistor R2 is connected between the switching device and the high-level terminal, and one end of the resistor R2 away from the resistor R1 is grounded. One end of the controller is connected between the resistor R1 and the resistor R2. The voltage between the resistor R1 and the resistor R2 decreases in proportion to the voltage between the switching device and the resistor R1. The voltage received by the controller between the resistor R1 and the resistor R2 is less than the voltage between the switching device and the resistor R1, which can avoid damage to the controller caused by overloading of the voltage input.

[0019] Preferably, in the content of the present application, the switching device includes a jumper switch.

[0020] Preferably, in the content of the present application, the switching device includes a double-pole single-throw switch.

[0021] Preferably, in the content of the present application, the double-pole single-throw switch includes a power supply access terminal, a first output terminal, and a second output terminal. The first output terminal is connected to the high-level terminal, and the second output terminal is connected to the end of the resistor R1 away from the resistor R2.

[0022] Preferably, in the content of the present application, the controller is a microprocessor or a single-chip microcomputer.

[0023] In a second aspect of the present invention, there is provided an electronic product applying an energy-saving circuit, including a core module, an auxiliary module, an energy-saving circuit, and a power supply, wherein:

[0024] The core module is connected to the power supply;

[0025] The switching device is connected to the power supply;

[0026] The auxiliary module is connected to the energy-saving circuit through an external port;

[0027] The switching device, the auxiliary module, and the conduction device are connected in series;

[0028] In a third aspect of the present invention, there is provided a method for using an electronic product, including the following steps:

[0029] The controller reads the state of the switching device,

[0030] If the controller reads the closed state of the switching device; then

[0031] The controller controls the conduction device to enter the conduction state;

[0032] The auxiliary module connected to the external port enters the working state;

[0033] If the controller reads the open state of the switching device; then

[0034] The controller controls the conduction device to enter the open state;

[0035] The auxiliary module connected to the external port is in the stopped working state.

[0036] In a preferred embodiment, when the auxiliary module needs to work, the method for using includes the following steps:

[0037] Control the switching device to be in the closed state;

[0038] The controller reads the closed state of the switching device;

[0039] The controller controls the conduction device to enter the conduction state;

[0040] The auxiliary module connected to the outer interface enters the working state.

[0041] In a preferred embodiment, when the auxiliary module does not need to work, the method for using includes the following steps:

[0042] The control switching device is in the open state;

[0043] The controller reads the open state of the switching device;

[0044] The controller controls the conduction device to enter an open state;

[0045] The auxiliary module connected to the outer end interface is in a stopped working state.

[0046] Preferably, in the content of this application, the controller regularly reads the state of the switching device.

[0047] Preferably, in the content of this application, when the controller reads that the switching device is in a closed state, the controller outputs a high level to the conduction device, and when the controller reads that the switching device is in an open state, the controller outputs a low level to the conduction device.

[0048] Preferably, in the content of this application, the switching device is a jumper switch and the conduction device is an enhanced NMOS transistor. The usage method includes the following steps:

[0049] Close the jumper switch, the circuit between the power supply and the enhanced NMOS transistor conducts, the level between the jumper switch and the high-level terminal is high level, and the levels of resistor R1 and resistor R2 in the voltage division circuit are high levels that decrease in equal proportion;

[0050] The controller starts regularly and reads the high level between resistor R1 and resistor R2;

[0051] The controller outputs a high level to the enhanced NMOS transistor. At this time, the drain of the enhanced NMOS transistor is connected to the power supply to receive high level, the gate is connected to the enhanced NMOS transistor to receive high level, the source is connected to low level, the resistance of the enhanced NMOS transistor is small, and the circuit where it is located conducts;

[0052] The circuit where the auxiliary module is located conducts, and the auxiliary module enters a working state.

[0053] When the auxiliary module does not need to work, the usage method includes the following steps:

[0054] Open the jumper switch, the circuit between the power supply and the enhanced NMOS transistor is disconnected, the level between the jumper switch and the high-level terminal is low level, and the levels of resistor R1 and resistor R2 in the voltage division circuit are low levels;

[0055] The controller starts regularly and reads the low level between resistor R1 and resistor R2;

[0056] The controller outputs a low level to the enhanced NMOS transistor. At this time, the drain of the enhanced NMOS transistor is disconnected from the power supply to receive low level, the gate is disconnected from the enhanced NMOS transistor to receive low level, the source is connected to low level, the resistance of the enhanced NMOS transistor is infinite, and the circuit where it is located is disconnected;

[0057] The circuit where the auxiliary module is located is open, and the auxiliary module stops working.

[0058] In summary, the present invention takes into account both the functional integrity and energy conservation of electronic products. On the premise of ensuring the normal operation of the core module of the electronic product, the auxiliary module is selectively turned on and off according to actual needs, with extremely low hardware and software overhead, facilitating the switching between different application scenarios, and having the advantages of energy conservation, convenient use, easy debugging, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 is the structural schematic diagram of the electronic product in the present invention;

[0060] Figure 2 is the structural schematic diagram of the energy-saving circuit in the present invention;

[0061] Figure 3 is the circuit schematic diagram of the energy-saving circuit in the present invention;

[0062] Figure 4 is the flow chart of the conduction and open circuit of the energy-saving circuit in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0063] The present invention will be further described in detail below with reference to the accompanying drawings.

[0064] An electronic product using an energy-saving circuit, referring to Figure 1 and Figure 2 , includes a power supply, a core module, an auxiliary module, and an energy-saving circuit, wherein: the core module and the energy-saving circuit are respectively connected to the power supply, and the auxiliary module is connected to the energy-saving circuit and powered by the energy-saving circuit. The energy-saving circuit includes a switching device, a conducting device, and a controller. The switching device has two states: closed and open circuit, and the conducting device has two states: conducting and open circuit, and the two states are controlled by the controller. An external connection port is provided between the switching device and the conducting device, and the auxiliary module is connected to the energy-saving circuit through the external connection port.

[0065] In a preferred embodiment, referring to Figure 2 and Figure 3 , the energy-saving circuit is described with a jumper switch as the switching device, an enhanced NMOS transistor as the conducting device, and a single-chip microcomputer as the controller.

[0066] The energy-saving circuit further includes a resistor R1, a resistor R2, a resistor R3, and a resistor R4. The jumper switch, the resistor R3, and the enhanced NMOS transistor are connected in series in sequence. The external connection port is provided between the jumper switch and the resistor R3. The external connection port includes a high-level terminal and a low-level terminal. The high-level terminal is connected to the jumper switch, and the low-level terminal is connected to the resistor R3. The auxiliary module is connected to the energy-saving circuit by connecting to the high-level terminal and the low-level terminal. The jumper switch is connected to the power input terminal V CC connection, the source of the enhanced NMOS transistor is grounded, and the input voltage V of the power input terminalCC is positive;

[0067] Resistor R1 and resistor R2 are connected in series, and the end of resistor R1 far from resistor R2 is connected between the jumper switch and the high - level terminal, and the end of resistor R2 far from resistor R1 is grounded; The single - chip microcomputer is respectively connected to the gate of the enhanced NMOS transistor and the end of resistor R1 close to resistor R2, and both ends of resistor R4 are respectively connected to the gate and the source of the enhanced NMOS transistor.

[0068] Referring to Figure 3 and Figure 4 , the auxiliary module (not shown in the figure) needs to meet two conditions to work:

[0069] Firstly, the jumper switch is in the closed state;

[0070] Secondly, the single - chip microcomputer reads the closed state of the jumper switch and controls the enhanced NMOS to conduct.

[0071] When the auxiliary module needs to work, the auxiliary module should be made to enter the working state. At this time:

[0072] Place the jumper switch in the closed state, and the entire energy - saving circuit is connected to the positive voltage;

[0073] The drain of the enhanced NMOS transistor is at a high level;

[0074] The level V at the end of resistor R1 close to resistor R2 IO changes from the low level when grounded to the high level;

[0075] The single - chip microcomputer periodically reads the level V IO When the read V IO is at a high level, the single - chip microcomputer outputs a high level to the enhanced NMOS transistor, and this high level exceeds the gate - turn - on voltage of the enhanced NMOS transistor;

[0076] The enhanced NMOS transistor enters the conducting state;

[0077] The jumper switch on the line where the auxiliary module is located is closed and the enhanced NMOS transistor is conducting, so that the entire line is conducting, and the auxiliary module enters the working state.

[0078] When the auxiliary module does not need to work, the auxiliary module should be made to enter the stop - working state. At this time:

[0079] Place the jumper switch in the open state, and the entire energy - saving circuit is not connected to the voltage;

[0080] The drain of the enhanced NMOS transistor is at a low level;

[0081] The level V at the end of resistor R1 close to resistor R2 IO is the low level when grounded;

[0082] The single-chip microcomputer outputs a low level to the gate of the enhanced NMOS transistor, and this level is lower than the gate turn-on voltage of the enhanced NMOS transistor;

[0083] The enhanced NMOS transistor is open;

[0084] The jumper switch on the line where the auxiliary module is located is open and the enhanced NMOS transistor is open, so the entire line is open and the auxiliary module enters the stop working state.

[0085] In summary, the present invention selectively turns on and off the auxiliary module according to actual needs, with extremely low hardware and software overhead, facilitating the switching of different application scenarios, and having the advantages of energy saving, convenient use, easy debugging, and easy maintenance.

[0086] This specific implementation manner is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications that do not contribute creatively to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An electronic product using an energy-saving circuit, characterized in that, it includes a core module, an auxiliary module, an energy-saving circuit and a power supply, wherein: The core module is connected to the power supply; The energy-saving circuit is connected to the power supply; The auxiliary module is connected to the energy-saving circuit and is powered by the energy-saving circuit; The energy-saving circuit includes a switching device, a conducting device, and a controller. An external connection port is provided between the switching device and the conducting device. The auxiliary module is connected to the energy-saving circuit through the external connection port. The external connection port includes a high-level terminal and a low-level terminal, wherein: One end of the switching device is used to connect to the power supply, and the other end is connected to the high-level terminal; One end of the conducting device is connected to the low-level terminal, and the other end is grounded; The switching device, the external connection port, and the conducting device are connected in series in sequence; The switching device has two states: closed and open; The conducting device has two states: conducting and open; The energy-saving circuit further includes a voltage-dividing circuit. One end of the voltage-dividing circuit is connected between the switching device and the high-level terminal, and the other end is grounded; One end of the controller is connected to the conducting device, and the other end reads the state of the switching device through the voltage-dividing circuit, and then controls the state of the conducting device.

2. The electronic product using an energy-saving circuit according to claim 1, characterized in that, The conducting device includes an enhanced NMOS transistor. The gate of the enhanced NMOS transistor is connected to the controller. The drain of the enhanced NMOS transistor is connected to the low-level terminal. The source of the enhanced NMOS transistor is grounded.

3. The electronic product using an energy-saving circuit according to claim 2, characterized in that, The enhanced NMOS transistor is provided with a protection device. The protection device includes a resistor R4. Two ends of the resistor R4 are respectively connected to the gate and the source of the enhanced NMOS transistor.

4. The electronic product using an energy-saving circuit according to claim 1, characterized in that, The voltage-dividing circuit includes a resistor R1 and a resistor R2. The resistor R1 and the resistor R2 are connected in series. One end of the resistor R1 far from the resistor R2 is connected between the switching device and the high-level terminal. One end of the resistor R2 far from the resistor R1 is grounded.

5. The electronic product using an energy-saving circuit according to claim 1, characterized in that, A resistor R3 is provided between the conducting device and the low-level terminal. The low-level terminal, the resistor R3, and the conducting device are connected in series in sequence.

6. A method of using an electronic product using an energy-saving circuit according to claim 1, characterized in that, it includes the following steps: The controller reads the state of the switching device, If the controller reads the closed state of the switching device; then The controller controls the conducting device to enter the conducting state; The auxiliary module connected to the external connection port enters the working state; If the controller reads the open state of the switching device; then The controller controls the conducting device to enter the open state; The auxiliary module connected to the external connection port is in the stopped working state.

7. The method of use according to claim 6, characterized in that, The controller regularly reads the state of the switching device.

8. The method of use according to claim 6, characterized in that, When the controller reads that the switching device is in the closed state, the controller outputs a high level to the conduction device; When the controller reads that the switching device is in the open state, the controller outputs a low level to the conduction device.

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