CN107561991B - A switch management circuit and terminal - Google Patents
A switch management circuit and terminal Download PDFInfo
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- CN107561991B CN107561991B CN201710920034.6A CN201710920034A CN107561991B CN 107561991 B CN107561991 B CN 107561991B CN 201710920034 A CN201710920034 A CN 201710920034A CN 107561991 B CN107561991 B CN 107561991B
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Abstract
本发明提供了一种开关机管理电路及终端，其中，开关机管理电路包括主供电控制电路、开关机控制电路及系统控制组件；主供电控制电路及开关机控制电路均与系统控制组件连接；在开机状态下主供电控制电路为系统控制组件供电；在检测到关机指令时开关机控制电路传输关机信号给系统控制组件，系统控制组件发送断电信号给主供电控制电路，主供电控制电路断电关闭，之后开关机控制电路关闭。本发明在关机时通过系统控制组件控制主供电控制电路关闭，且开关机控制电路也关闭。实现系统的彻底断电关机，关机之后不再存在电能损耗，极大的降低了系统功耗提高了终端电池的寿命及电池续航能力。
The present invention provides a power on/off management circuit and terminal, wherein the power on/off management circuit includes a main power supply control circuit, a power on/off control circuit and a system control component; the main power supply control circuit and the power on/off control circuit are both connected to the system control component; in the on state, the main power supply control circuit supplies power to the system control component; when a shutdown command is detected, the power on/off control circuit transmits a shutdown signal to the system control component, the system control component sends a power off signal to the main power supply control circuit, the main power supply control circuit is powered off and shut down, and then the power on/off control circuit is shut down. The present invention controls the main power supply control circuit to shut down through the system control component when shutting down, and the power on/off control circuit is also shut down. This realizes a complete power off and shutdown of the system, and there is no more power loss after shutdown, which greatly reduces the system power consumption and improves the terminal battery life and battery life.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to a startup and shutdown management circuit and a terminal.
Background
Terminals such as mobile phones or tablet computers are mainly powered by batteries, and the cruising ability of the batteries is a very important performance index of the terminals. The cruising ability of the battery depends on the power consumption of the terminal, and the power consumption after shutdown also affects the cruising ability of the battery.
The terminal mainly comprises a power module, a system control module and a system function module. The power supply module is responsible for supplying power to the system control module and the system function module, and the system control module controls the system function module to complete various functions. At present, when the terminal is powered off, the system control module mainly enters a sleep mode, and in the sleep mode, the system function module does not work and does not consume the battery power any more. However, after the power is turned off, the battery still supplies power to the system control module, the system control module still consumes electric energy, the power-off power can not be really realized, the circuit power consumption is larger, and the endurance capacity of the battery is influenced.
Disclosure of Invention
In view of the above, an object of the embodiments of the present invention is to provide a power on/off management circuit and a terminal, so as to solve the following problems in the prior art: in the prior art, after the terminal is powered off, the battery still supplies power to the system control module, still consumes electric energy, has larger circuit power consumption and affects the cruising ability of the battery.
In a first aspect, an embodiment of the present invention provides a power on/off management circuit, including a main power supply control circuit, a power on/off control circuit, and a system control component;
The main power supply control circuit and the on-off control circuit are connected with the system control component; the main power supply control circuit supplies power to the system control component in a starting state;
when a shutdown instruction is detected, the on-off control circuit transmits a shutdown signal to the system control component, the system control component transmits a power-off signal to the main power supply control circuit, the main power supply control circuit is powered off and closed, and then the on-off control circuit is closed.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the main power supply control circuit includes a first voltage stabilizing chip and a first peripheral circuit;
the first voltage stabilizing chip is respectively connected with a device power supply, the first peripheral circuit, the on-off control circuit and the system control component.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the on-off control circuit includes a second voltage stabilizing chip, a second peripheral circuit, and a manual switching circuit;
The second voltage stabilizing chip is respectively connected with a device power supply, the second peripheral circuit, the manual switch circuit, the main power supply control circuit and the system control component.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the manual switching circuit includes a switching tube, a key switch, and a peripheral electronic device;
the switch tube is respectively connected with the equipment power supply, the peripheral electronic device, the key switch and the second voltage stabilizing chip; the key switch is connected with the peripheral electronic device.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the peripheral electronic device includes a first resistor and a second resistor;
The source electrode of the switching tube is connected with one end of the equipment power supply and one end of the first resistor respectively; the other end of the first resistor is connected with one end of the key switch and the grid electrode of the switch tube respectively; the other end of the key switch is grounded;
The drain electrode of the switching tube is connected with one end of the second voltage stabilizing chip and one end of the second resistor respectively; the other end of the second resistor is grounded.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where when the key switch is pressed to start, the on-off control circuit is turned on to supply power to the system control component, and transmits a start signal to the system control component;
The system control component sends a wake-up signal to the main power supply control circuit, and the main power supply control circuit is started and supplies power to the system control component.
With reference to the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where after the main power supply control circuit supplies power to the system control component, the key switch is sprung, and the on-off control circuit is turned off.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where the first peripheral circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a third resistor;
The first pin of the first voltage stabilizing chip is respectively connected with the equipment power supply and the first capacitor and the second capacitor which are connected in parallel; the second pin is grounded, the fourth pin is suspended, and the third pin is respectively connected with the system control assembly and one end of the third resistor; the other end of the third resistor is grounded;
and a fifth pin of the first voltage stabilizing chip is respectively connected with the system control component, the on-off control circuit, the third capacitor and the fourth capacitor.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, where the second peripheral circuit includes a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a fourth resistor, a fifth resistor, and a diode;
The first pin of the second voltage stabilizing chip is respectively connected with the equipment power supply and the fifth capacitor and the sixth capacitor which are connected in parallel; the second pin is grounded, the fourth pin is suspended, and the third pin is connected with the manual switch circuit;
The fifth pin of the second voltage stabilizing chip is connected with the main power supply control circuit through the diode, grounded through the seventh capacitor and grounded through the fourth resistor and the fifth resistor which are connected in series;
one end of the eighth capacitor is grounded, and the other end of the eighth capacitor is respectively connected with the fourth resistor, the fifth resistor and the system control component.
In a second aspect, an embodiment of the present invention provides a terminal, including a device power supply, a system functional component, and the power on/off management circuit according to any one of claims 1 to 9;
the on-off management circuit comprises a main power supply control circuit and an on-off control circuit which are connected with the equipment power supply;
and a system control component included in the on-off management circuit is connected with the system function component.
In the embodiment of the invention, the on-off management circuit comprises a main power supply control circuit, an on-off control circuit and a system control component; the main power supply control circuit and the on-off control circuit are connected with the system control component; the main power supply control circuit supplies power to the system control component in a starting state; when a shutdown instruction is detected, the on-off control circuit transmits a shutdown signal to the system control component, the system control component transmits a power-off signal to the main power supply control circuit, the main power supply control circuit is powered off and closed, and then the on-off control circuit is closed. When the power-on/off control circuit is powered off, the main power supply control circuit is controlled to be turned off through the system control component, and the power-on/off control circuit is also turned off. The complete power-off shutdown of the system is realized, no electric energy loss exists after the shutdown, the power consumption of the system is greatly reduced, and the service life of a terminal battery and the battery endurance are improved.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic diagram of a power on/off management circuit according to embodiment 1 of the present invention;
FIG. 2 is a schematic circuit diagram of a main power supply control circuit according to embodiment 1 of the present invention;
Fig. 3 shows a schematic circuit diagram of an on-off control circuit provided in embodiment 1 of the present invention;
fig. 4 shows a schematic circuit diagram of a power on/off management circuit according to embodiment 1 of the present invention;
Fig. 5 shows a schematic structural diagram of a terminal according to embodiment 2 of the present invention.
The meanings of the reference numerals in the above figures are as follows:
1: main power supply control circuit, 2: switching on and shutting down control circuit, 3: system control component, 4: manual switching circuit, 5: device power supply, 6: system functional components, 7: a power on/off management circuit;
C1: first capacitance, C2: second capacitor, C3: third capacitance, C4: fourth capacitance, C5: fifth capacitance, C6: sixth capacitance, C7: seventh capacitance, C8: an eighth capacitor; r1: first resistance, R2: second resistor, R3: third resistor, R4: fourth resistor, R5: a fifth resistor; d1: a diode; q1: switching tube, G1: source of switching tube, G2: gate of switching tube, G3: a drain electrode of the switching tube;
U1: first voltage stabilizing chip, Y1: first pin, Y2 of first steady voltage chip: second pin of first voltage stabilizing chip, Y3: third pin of first voltage stabilizing chip, Y4: y1: fourth pin of first steady voltage chip, Y5: a fifth pin of the first voltage stabilizing chip;
u2: second voltage stabilizing chip, J1: first pin of second steady voltage chip, J2: second pin of second voltage stabilizing chip, J3: third pin of second voltage stabilizing chip, J4: fourth pin of second steady voltage chip, J5: a fifth pin of the second voltage stabilizing chip;
GND: grounding, INTO: and (5) inputting.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Considering that the battery still supplies power to the system control module after the terminal is powered off in the prior art, the system control module still consumes electric energy, so that the actual power-off and power-off cannot be realized, the circuit power consumption is large, and the endurance of the battery is influenced. Based on this, the embodiment of the invention provides a startup and shutdown management circuit and a terminal, and the startup and shutdown management circuit and the terminal are described by the embodiment.
Example 1
Referring to fig. 1, an embodiment of the present invention provides a power on/off management circuit, which includes a main power supply control circuit 1, a power on/off control circuit 2, and a system control component 3.
The main power supply control circuit 1 and the on-off control circuit 2 are connected with the system control component 3; the main power supply control circuit 1 supplies power to the system control component 3 in a starting state; when a shutdown instruction is detected, the startup and shutdown control circuit 2 transmits a shutdown signal to the system control component 3, the system control component 3 transmits a power-off signal to the main power supply control circuit 1, the main power supply control circuit 1 is powered off and closed, and then the startup and shutdown control circuit 2 is closed.
The system control component 3 includes a microprocessor controller of the terminal and corresponding peripheral circuits, where the microprocessor controller includes, but is not limited to, a single-chip microcomputer. In the starting-up state, the on-off control circuit 2 is closed, and the main power supply control circuit 1 works normally to supply power to the system control component 3. When the user clicks the key switch S1 included in the on-off control circuit 2, the on-off control circuit 2 detects an off command and transmits an off signal to the system control component 3. The system control component 3 receives the shutdown signal and then sends a power-off signal to the main power supply control circuit 1. The main power supply control circuit 1 is turned off after receiving the power-off signal, and stops supplying power to the system control unit 3. The on-off control circuit 2 may be automatically turned off after sending the above-mentioned off signal, or automatically turned off after sending the off signal to the system control component 3 and receiving the response signal returned by the system control component 3, or automatically turned off after the main power supply control circuit 1 is turned off.
When the power-on is started, a user clicks a key switch S1 included in the power-on/off control circuit 2, the power-on/off control circuit 2 detects a power-on instruction, the power-on/off control circuit 2 is awakened to be started, and the power-on/off control circuit 2 supplies power for the system control component 3. And the startup and shutdown control circuit 2 transmits a startup signal to the system control component 3. After receiving the start-up signal, the system control component 3 sends a wake-up signal to the main power supply control circuit 1 to wake up the main power supply control circuit 1, the main power supply control circuit 1 is started and supplies power to the system control component 3, and the system control component 3 starts to work normally. After the main power supply control circuit 1 supplies power to the system control component 3, the on-off control circuit 2 is turned off, and the power supply to the system control component 3 is stopped.
The power-on signal, the power-off signal and the like in the embodiment of the invention are all level signals, and different control signals are distinguished by the level signals with different heights.
In the embodiment of the invention, the on-off control of the terminal is realized through the on-off control circuit 2. The power-off control circuit 2 transmits a power-off signal to the system control component 3 when the power-off is performed, and the system control component 3 can save the currently executing process, the processed data and the like after receiving the power-off signal. The system control component 3 receives the shutdown signal and then controls the main power supply control circuit 1 to be turned off, and the on-off control circuit 2 is also turned off automatically. Therefore, after the power is turned off, the system control component 3 is completely powered off, so that the power is turned off in a real sense, the system power consumption of the terminal is greatly reduced, and the cruising ability and the service life of the equipment power supply are improved.
As shown in fig. 2, the main power supply control circuit 1 includes a first voltage stabilizing chip U1 and a first peripheral circuit; the first voltage stabilizing chip U1 is respectively connected with the equipment power supply, the first peripheral circuit, the on-off control circuit 2 and the system control component 3. The first voltage stabilizing chip U1 is a voltage stabilizing chip with a switching function.
As shown in fig. 2, the first peripheral circuit includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a third resistor R3. The first pin Y1 of the first voltage stabilizing chip U1 is a VIN (power input) pin, and the first pin Y1 is respectively connected with a device power supply and a first capacitor C1 and a second capacitor C2 which are connected in parallel. Namely, the first pin Y1 is connected with a power input, and a first capacitor C1 and a second capacitor C2 which are connected in parallel are connected between the first pin Y1 and a ground wire, and the main functions are decoupling and filtering.
The second pin Y2 of the first voltage stabilizing chip U1 is a VSS (digital circuit ground pin) pin, and the second pin Y2 is grounded. The fourth pin Y4 of the first voltage stabilizing chip U1 is an NC (unused pin) pin, and the fourth pin Y4 is suspended.
The third pin Y3 of the first voltage stabilizing chip U1 is a CE (signal output pin) pin, the third pin Y3 is respectively connected with one end of the system control component 3 and one end of the third resistor R3, and the other end of the third resistor R3 is grounded. Namely, the third pin Y3 is divided into two paths, and one path is connected with the system control component 3 and is used for receiving the control signal transmitted by the system control component 3. The other path is grounded through a third resistor R3, and the main effect of the third resistor R3 is that the system control component 3 is in a high-resistance state on the third pin Y3 at the moment of power-on starting, namely, the signal output pin is in an uncertain state and is equivalent to virtual power, so that the third resistor R3 with larger resistance is required to be grounded to pull up the virtual power.
The fifth pin Y5 of the first voltage stabilizing chip U1 is a VOUT (power supply output) pin. The fifth pin Y5 is connected to the system control unit 3, the on-off control circuit 2, the third capacitor C3, and the fourth capacitor C4, respectively. Namely, the fifth pin Y5 is divided into three paths, and the first path is connected with the system control assembly 3 to supply power for the system control assembly 3. The second path is connected with the on-off control circuit 2. The third path is grounded after passing through a third capacitor C3 and a fourth capacitor C4 which are connected in parallel.
As shown in fig. 3, the on-off control circuit 2 includes a second voltage stabilizing chip U2, a second peripheral circuit, and a manual switching circuit 4; the second voltage stabilizing chip U2 is respectively connected with the equipment power supply, the second peripheral circuit, the manual switch circuit 4, the main power supply control circuit 1 and the system control component 3. The second voltage stabilizing chip U2 is a voltage stabilizing chip having a switching function.
As shown in fig. 3, the second peripheral circuit includes a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a fourth resistor R4, a fifth resistor R5, and a diode D1.
The first pin J1 of the second voltage stabilizing chip U2 is a VIN pin, and the first pin J1 is respectively connected with a device power supply and a fifth capacitor C5 and a sixth capacitor C6 which are connected in parallel. Namely, the first pin J1 is connected to the power input, and the fifth capacitor C5 and the sixth capacitor C6 connected in parallel are connected between the first pin J and the ground.
The second pin J2 of the second voltage stabilizing chip U2 is a VSS pin, and the second pin J2 is grounded. The fourth pin J4 of the second voltage stabilizing chip U2 is an NC pin, and the fourth pin J4 is suspended. The third pin J3 of the second voltage stabilizing chip U2 is a CE pin, and the third pin J3 is connected with the manual switch circuit 4;
The fifth pin J5 of the second voltage stabilizing chip U2 is a VOUT pin, the fifth pin J5 is connected with the main power supply control circuit 1 through a diode D1, is grounded through a seventh capacitor C7, and is grounded through a fourth resistor R4 and a fifth resistor R5 which are connected in series. Namely, the fifth pin J5 is divided into three paths, the first path is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the power supply end of the main power supply control circuit 1, and the power supply end of the main power supply control circuit 1 is the fifth pin Y5 of the first voltage stabilizing chip U1. The second path is connected to ground through a seventh capacitor C7. The third path is connected with the ground through a fourth resistor R4 and a fifth resistor R5 which are connected in series, and the fourth resistor R4 and the fifth resistor R5 form a voltage dividing circuit, so that the voltage output by the switch control circuit is more stable.
One end of the eighth capacitor C8 is grounded, and the other end is connected to the fourth resistor R4, the fifth resistor R5, and the system control unit 3, respectively. Namely, one end of the eighth capacitor C8 is connected to the ground, and the other end is divided INTO two paths, one path is connected to the common end of the fourth resistor R4 and the fifth resistor R5, and the other path is an INTO (input) terminal connected to the system control component 3, and the INTO terminal is connected to the system control component 3.
As shown in fig. 3, the manual switching circuit 4 includes a switching tube Q1, a key switch S1, and peripheral electronics; the switch tube Q1 is respectively connected with the equipment power supply, the peripheral electronic device, the key switch S1 and the second voltage stabilizing chip U2; the key switch S1 is connected to peripheral electronics. The peripheral electronic device includes a first resistor R1 and a second resistor R2. The key switch S1 is a mechanical switch and is used for switching on and switching off the terminal. The switching tube Q1 is a low-power P-channel MOS (Metal Oxide Semiconductor) tube, and the P-channel MOS tube is characterized by low-level conduction, so that the manual switching circuit 4 is non-conductive in a default state and needs to be pulled up to a high-level end through the first resistor R1.
The source electrode G1 of the switching tube Q1 is respectively connected with a device power supply and one end of a first resistor R1; the other end of the first resistor R1 is connected with one end of the key switch S1; the other end of the push switch S1 is grounded. That is, the source G1 of the switching tube Q1 is divided into two paths, one path is connected to the power input, the other path is grounded after passing through the first resistor R1 and the key switch S1 which are connected in series, and the key switch S1 is grounded and turned on when being pressed down, so as to form a low-level conduction condition, and the switching tube Q1 is turned on.
The other end of the first resistor R1 and one end of the push switch S1 are also connected to the gate G2 of the switching tube Q1. That is, the gate G2 of the switching transistor Q1 is connected to the common terminal of the first resistor R1 and the key switch S1. The drain electrode G3 of the switching tube Q1 is respectively connected with one end of the second voltage stabilizing chip U2 and one end of the second resistor R2; the other end of the second resistor R2 is grounded. Namely, the drain electrode G3 of the switching tube Q1 is divided into two paths, and one path is directly connected with the third pin J3 of the second voltage stabilizing chip U2 in the switching control circuit 2. The other path is grounded through a second resistor R2. The second resistor R2 functions to prevent the key switch S1 from being dithered.
The connection relationship between the main power supply control circuit 1 shown in fig. 2 and the on-off control circuit 2 shown in fig. 3 is shown in fig. 4.
When the terminal is in a power-off state, if a user needs to turn on the terminal, the user presses the key switch S1, and when the key switch S1 is pressed to turn on, the power-on/off control circuit 2 is turned on to supply power to the system control component 3 and transmit a power-on signal to the system control component 3. Specifically, when the key switch S1 is pressed, the gate G2 of the switching tube Q1 is directly connected to ground, the potential is 0, the low-level conduction condition is satisfied, the switching tube Q1 is turned on, the potential of the source G1 connected to the power supply of the device is higher than that of the gate G2, and the source G1 and the drain G3 of the switching tube Q1 are turned on. At this time, the third pin J3 of the second voltage stabilizing chip U2 in the on-off control circuit 2 obtains a high level, the second voltage stabilizing chip U2 starts to work normally, the fifth pin J5 of the second voltage stabilizing chip U2 outputs a voltage, the fifth pin J5 supplies power to the system control component 3 in advance after passing through the diode D1, and the system control component 3 starts to work. Meanwhile, an INTO terminal connected with the system control component 3 in the on-off control circuit 2 obtains a high level, and the high level is an on-off signal transmitted to the system control component 3 by the on-off control circuit 2.
After the system control component 3 starts to work, it is detected that the output level of the INTO terminal in the on-off control circuit 2 is high level, and the duration of the high level is longer than or equal to the preset duration, the current start-up operation is determined, and the subsequent start-up processing is performed. The preset duration may be 1S or 2S, and if the system control component 3 detects that the duration of the high level output by the INTO terminal is less than the preset duration, the high level is determined to be an interference signal, and no subsequent startup processing is performed.
When the system control component 3 detects that the INTO terminal outputs a high level, and the duration of the high level is longer than or equal to the preset duration, the system control component 3 receives a startup signal output by the startup and shutdown control circuit 2. The system control component 3 sends a wake-up signal to the main power supply control circuit 1, and the main power supply control circuit 1 is turned on and supplies power to the system control component 3. Specifically, as shown in fig. 2, the system control component 3 is connected to the third pin Y3 of the first voltage stabilizing chip U1 in the main power supply control circuit 1, and after receiving the power-on signal, the system control component 3 controls the level of the third pin Y3 of the first voltage stabilizing chip U1 in the main power supply control circuit 1 to be high, so that the first voltage stabilizing chip U1 starts to operate. After the first voltage stabilizing chip U1 starts working, the fifth pin Y5 of the first voltage stabilizing chip U1 outputs voltage to normally supply power to the system control component 3, and the system control component 3 controls the system functional components of the terminal to start working normally. After the main power supply control circuit 1 supplies power to the system control component 3 and the system functional module starts to work, the key switch S1 is sprung, the switching tube Q1 is closed at the moment, the second voltage stabilizing chip U2 is closed, the whole on-off control circuit 2 is closed, the work is stopped, and the power supply is stopped. In the start-up state, the system of the terminal is powered by the main power supply control circuit 1.
When the terminal is in a starting-up state, if the user needs to close the terminal, the user presses the key switch S1, when the key switch S1 is pressed to close, the switch tube Q1 is conducted, the second voltage stabilizing chip U2 is started along with the key switch, the on-off control circuit 2 starts to work normally, and on one hand, the power is supplied to the system control component 3 in advance through the output voltage of the fifth pin of the second voltage stabilizing chip U2. On the other hand, the INTO terminal connected to the system control unit 3 in the on-off control circuit 2 outputs a high level, and the duration of the high level is longer than or equal to the preset duration. After detecting that the output duration of the INTO terminal is longer than or equal to the high level of the preset duration, the system control component 3 controls the level of the third pin Y3 of the first voltage stabilizing chip U1 in the main power supply control circuit 1 to be low, so that the first voltage stabilizing chip U1 stops working, the main power supply control circuit 1 stops working, and meanwhile, the system control component 3 controls the system functional components of the terminal to stop working. After the main power supply control circuit 1 is closed, the key switch S1 is sprung, the switching tube Q1 is closed, the second voltage stabilizing chip U2 is closed, and the whole on-off control circuit 2 is closed to stop working. The power-off and power-on control circuit 2 and the main power supply control circuit 1 are all powered off to stop working, and the system control component 3 is powered off and closed to complete power-off. In the shutdown state, the system of the terminal is completely powered off, no electric energy loss exists, the system power consumption is greatly reduced, and the battery life and the battery endurance of the terminal are improved.
In the embodiment of the invention, the on-off management circuit comprises a main power supply control circuit, an on-off control circuit and a system control component; the main power supply control circuit and the on-off control circuit are connected with the system control component; the main power supply control circuit supplies power to the system control component in a starting state; when a shutdown instruction is detected, the on-off control circuit transmits a shutdown signal to the system control component, the system control component transmits a power-off signal to the main power supply control circuit, the main power supply control circuit is powered off and closed, and then the on-off control circuit is closed. When the power-on/off control circuit is powered off, the main power supply control circuit is controlled to be turned off through the system control component, and the power-on/off control circuit is also turned off. The complete power-off shutdown of the system is realized, no electric energy loss exists after the shutdown, the power consumption of the system is greatly reduced, and the service life of a terminal battery and the battery endurance are improved.
Example 2
Referring to fig. 5, an embodiment of the present invention provides a terminal, which includes a device power supply 5, a system function component 6, and the on-off management circuit 7 provided in the above embodiment 1.
The on-off management circuit 7 comprises a main power supply control circuit 1 and an on-off control circuit 2 which are connected with the equipment power supply 5; the system control unit 3 included in the startup and shutdown management circuit 7 is connected to the system function unit 6.
The device power supply 5 may be a battery of the terminal. In the embodiment of the present invention, the structure of the on-off management circuit 7 is the same as that of the on-off management circuit 7 provided in the embodiment 1, and will not be described here again.
In the embodiment of the invention, in the starting-up state, the on-off control circuit 2 is turned off, and the terminal is only powered by the main power supply control circuit 1. In the power-off state, the main power supply control circuit 1 and the on-off control circuit 2 are powered off to stop working, the terminal is completely powered off and completely powered off, no electric energy loss exists, the system power consumption is greatly reduced, and the service life and the endurance of the equipment power supply 5 are improved.
When the power-on is started, a user clicks a key switch S1 included in the power-on/off control circuit 2, the power-on/off control circuit 2 is awakened to be started, and the power-on/off control circuit 2 supplies power for the system control component 3. And the startup and shutdown control circuit 2 transmits a startup signal to the system control component 3. After receiving the starting signal, the system control component 3 sends a wake-up signal to the main power supply control circuit 1, wakes up the main power supply control circuit 1, the main power supply control circuit 1 is started and supplies power to the system control component 3, and the system control component 3 controls the system function component 6 to start to work normally. After the main power supply control circuit 1 supplies power to the system control component 3, the on-off control circuit 2 is turned off, and the power supply to the system control component 3 is stopped.
When the power-off is performed, a user clicks a key switch S1 included in the power-on/power-off control circuit 2, the power-on/power-off control circuit 2 detects a power-off instruction, and a power-off signal is transmitted to the system control component 3. The system control component 3 receives the shutdown signal and then sends a power-off signal to the main power supply control circuit 1. The main power supply control circuit 1 is turned off after receiving the power-off signal, and stops supplying power to the system control component 3, and the system control component 3 controls the system function component 6 to stop working. And then the on-off control circuit 2 is automatically closed to stop working. The power-off and power-on control circuit 2 and the main power supply control circuit 1 are completely powered off to stop working so as to complete power-off, reduce the power consumption of the system and improve the service life and battery endurance of the equipment power supply 5.
In the embodiment of the invention, the terminal performs on-off control through the on-off management circuit. The on-off management circuit comprises a main power supply control circuit, an on-off control circuit and a system control component; the main power supply control circuit and the on-off control circuit are connected with the system control component; the main power supply control circuit supplies power to the system control component in a starting state; when a shutdown instruction is detected, the on-off control circuit transmits a shutdown signal to the system control component, the system control component transmits a power-off signal to the main power supply control circuit, the main power supply control circuit is powered off and closed, and then the on-off control circuit is closed. When the power-on/off control circuit is powered off, the main power supply control circuit is controlled to be turned off through the system control component, and the power-on/off control circuit is also turned off. The complete power-off shutdown of the system is realized, no electric energy loss exists after the shutdown, the power consumption of the system is greatly reduced, and the service life of a terminal battery and the battery endurance are improved.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the corresponding technical solutions. Are intended to be encompassed within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The on-off management circuit is characterized by comprising a main power supply control circuit, an on-off control circuit and a system control component;
The main power supply control circuit and the on-off control circuit are connected with the system control component; the main power supply control circuit supplies power to the system control component in a starting state;
When a shutdown instruction is detected, the on-off control circuit transmits a shutdown signal to the system control component, the system control component transmits a power-off signal to the main power supply control circuit, the main power supply control circuit is powered off and closed, and then the on-off control circuit is closed;
The main power supply control circuit comprises a first voltage stabilizing chip and a first peripheral circuit; the first voltage stabilizing chip is respectively connected with an equipment power supply, the first peripheral circuit, the on-off control circuit and the system control component;
The on-off control circuit comprises a second voltage stabilizing chip, a second peripheral circuit and a manual on-off circuit; the second voltage stabilizing chip is respectively connected with a device power supply, the second peripheral circuit, the manual switch circuit, the main power supply control circuit and the system control component;
The first peripheral circuit comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a third resistor; the first pin of the first voltage stabilizing chip is respectively connected with the equipment power supply and the first capacitor and the second capacitor which are connected in parallel; the second pin is grounded, the fourth pin is suspended, and the third pin is respectively connected with the system control assembly and one end of the third resistor; the other end of the third resistor is grounded; the fifth pin of the first voltage stabilizing chip is respectively connected with the system control component, the on-off control circuit, the third capacitor and the fourth capacitor;
The second peripheral circuit comprises a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a fourth resistor, a fifth resistor and a diode; the first pin of the second voltage stabilizing chip is respectively connected with the equipment power supply and the fifth capacitor and the sixth capacitor which are connected in parallel; the second pin is grounded, the fourth pin is suspended, and the third pin is connected with the manual switch circuit; the fifth pin of the second voltage stabilizing chip is connected with the main power supply control circuit through the diode, grounded through the seventh capacitor and grounded through the fourth resistor and the fifth resistor which are connected in series; one end of the eighth capacitor is grounded, and the other end of the eighth capacitor is respectively connected with the fourth resistor, the fifth resistor and the system control component.
2. The power on/off management circuit of claim 1, wherein the manual switching circuit comprises a switching tube, a key switch, and peripheral electronics;
the switch tube is respectively connected with the equipment power supply, the peripheral electronic device, the key switch and the second voltage stabilizing chip; the key switch is connected with the peripheral electronic device.
3. The power on/off management circuit of claim 2, wherein the peripheral electronics comprises a first resistor and a second resistor;
The source electrode of the switching tube is connected with one end of the equipment power supply and one end of the first resistor respectively; the other end of the first resistor is connected with one end of the key switch and the grid electrode of the switch tube respectively; the other end of the key switch is grounded;
The drain electrode of the switching tube is connected with one end of the second voltage stabilizing chip and one end of the second resistor respectively; the other end of the second resistor is grounded.
4. The power on/off management circuit according to claim 2, wherein when the key switch is pressed to power on, the power on/off control circuit is turned on to supply power to the system control component and transmits a power on signal to the system control component;
The system control component sends a wake-up signal to the main power supply control circuit, and the main power supply control circuit is started and supplies power to the system control component.
5. The power on/off management circuit of claim 4 wherein said key switch pops up and said power on/off control circuit turns off after said main power control circuit provides power to said system control component.
6. A terminal comprising a device power supply, a system function component, and the on-off management circuit of any one of claims 1-5;
the on-off management circuit comprises a main power supply control circuit and an on-off control circuit which are connected with the equipment power supply;
and a system control component included in the on-off management circuit is connected with the system function component.
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| CN201710920034.6A CN107561991B (en) | 2017-09-30 | 2017-09-30 | A switch management circuit and terminal |
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| CN201710920034.6A CN107561991B (en) | 2017-09-30 | 2017-09-30 | A switch management circuit and terminal |
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| CN107561991B true CN107561991B (en) | 2024-06-18 |
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| CN108524086A (en) * | 2018-04-11 | 2018-09-14 | 深圳可思美科技有限公司 | Facial cosmetic refrigeration system, method and apparatus |
| CN113394467B (en) * | 2021-05-07 | 2022-07-22 | 深圳市金研微科技有限公司 | Intelligent battery for mobile terminal equipment |
| CN113747079B (en) * | 2021-09-27 | 2023-04-18 | 上海布鲁可积木科技有限公司 | Camera drive control circuit, layout structure, camera and toy |
| CN118677085B (en) * | 2024-06-07 | 2025-03-07 | 深圳市龙之源科技股份有限公司 | Power supply switching circuit of outdoor camera and outdoor camera |
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| CN207424583U (en) * | 2017-09-30 | 2018-05-29 | 深圳麦格米特电气股份有限公司 | A kind of switching on and shutting down management circuit and terminal |
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| JP4050292B2 (en) * | 2005-09-09 | 2008-02-20 | 三菱電機株式会社 | Electronic control unit |
| CN103676746B (en) * | 2013-12-20 | 2016-08-17 | 青岛歌尔声学科技有限公司 | A kind of switching on and shutting down control circuit and electronic equipment |
| CN103809492B (en) * | 2014-02-25 | 2016-03-16 | 青岛歌尔声学科技有限公司 | One-touch multifunctional control circuit and wearing electronic product |
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| CN207424583U (en) * | 2017-09-30 | 2018-05-29 | 深圳麦格米特电气股份有限公司 | A kind of switching on and shutting down management circuit and terminal |
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