Disclosure of Invention
The utility model aims to provide a low-power-consumption power supply control circuit and electric equipment, which can effectively reduce power consumption.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the embodiment of the application provides a low-power consumption power supply control circuit, which comprises:
the control module is used for outputting a first power supply control signal according to the dormancy trigger signal;
and the power output module is connected with the control module and used for being connected with the power module and disconnecting the electric energy input by the power module according to the first power control signal.
In some embodiments, the low power consumption power supply control circuit comprises a control module, a first switch tube and a second switch tube, wherein the control module comprises a sleep trigger signal input end, a first capacitor and a second switch tube; one end of the first capacitor is connected with the sleep trigger signal input end, the other end of the first capacitor is connected with the first end of the first switch tube, the second end of the first switch tube is connected with the power output module, and the third end of the first switch tube is grounded.
In some embodiments, the low power consumption power supply control circuit further includes a first wake-up signal input terminal, and the first wake-up signal input terminal is connected to the power supply output module.
In some embodiments, the low power consumption power supply control circuit, the control module further includes a second wake-up signal input terminal, a second capacitor, and a second switching tube; the second wake-up signal input end is connected with one end of a second capacitor, the other end of the second capacitor is connected with the first end of a second switching tube, the second end of the second switching tube is connected with the power output module, and the third end of the second switching tube is grounded.
In some embodiments, the low power consumption power supply control circuit comprises a control module, a first power supply control circuit and a second power supply control circuit, wherein the control module comprises a sleep trigger signal input end, a third capacitor, a control chip and a first wake-up signal input end; the sleep trigger signal input end is connected with one end of a third capacitor, the other end of the third capacitor is connected with the 2 nd pin of the control chip, the 6 th pin of the control chip and the first wake-up signal input end are both connected with the power output module, and the 3 rd pin of the control chip is connected with the first wake-up signal input end.
In some embodiments, the low power consumption power supply control circuit further includes a second wake-up signal input terminal and a fourth capacitor, one end of the fourth capacitor is connected to the 5 th pin of the control chip, and the other end of the fourth capacitor is connected to the second wake-up signal input terminal.
In some embodiments, the low-power consumption power supply control circuit includes a third switch tube, a first resistor and a fifth capacitor, wherein a first end of the third switch tube is connected with one end of the first capacitor and the control module, a second end of the third switch tube is connected with the power supply output end, a third end of the third switch tube and one end of the first resistor are both connected with the power supply module, the other end of the first resistor is connected with the first end of the third switch tube, and the other end of the fifth capacitor is grounded.
In some embodiments, the low power supply control circuit further comprises:
the starting module is connected with the power supply module and the control module and is used for outputting a starting signal to the control module according to the starting trigger signal;
the control module is also used for controlling the power output module to conduct the input electric energy of the power module according to the starting signal.
In some embodiments, the low-power supply control circuit comprises a first resistor and a key, wherein one end of the first resistor is connected with one end of the key, and the other end of the first resistor is connected with the control module.
The application also provides electric equipment, which comprises a power supply module, an electric module and the low-power-consumption power supply control circuit, wherein the power supply module is connected with the electric module through the low-power-consumption power supply control circuit; the low-power consumption power supply control circuit is used for controlling the power supply module to be disconnected with the power utilization module according to the dormancy trigger signal.
Compared with the prior art, the utility model provides the low-power consumption power supply control circuit and the electric equipment, wherein in the low-power consumption power supply control circuit, the control module controls the power output module to disconnect the electric energy input by the power supply module according to the dormancy trigger signal, so that the power supply module is disconnected with the post-stage circuit power module, and the post-stage circuit is in a power-off state without power consumption, and does not need the power consumption of the power supply module, so that the optimal power consumption reduction effect is achieved, the power supply is saved to the greatest extent in the dormancy state, and the cruising ability and the service life of a battery are improved.
Detailed Description
The utility model aims to provide a low-power-consumption power supply control circuit and electric equipment, which can effectively reduce power consumption so as to increase endurance and prolong the service life of a battery.
In order to make the objects, technical solutions and effects of the present utility model clearer and more specific, the present utility model will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, the low-power consumption power control circuit 10 provided by the utility model can be applied to a battery product, and the battery product correspondingly comprises a power module 20 and an electricity consumption module 30, wherein the power module 20 comprises a battery, and the electricity consumption module 30 can be a rear-stage semiconductor device in the electronic product, which needs to be powered by the power module 20 during operation.
In particular, the low-power consumption power supply control circuit 10 provided by the utility model comprises a control module 11 and a power supply output module 12. The control module 11 is configured to output a first power control signal according to the sleep trigger signal; the power module output module is configured to connect to the power module 20 and disconnect the power input by the power module 20 according to the first power control signal.
Specifically, the control module 11 is connected to the main chip of the battery product, and when the battery product enters the sleep state, a sleep trigger signal is output by the main chip, so that the control module 11 outputs a first power control signal according to the sleep trigger signal. The power output module 12 is connected to the power consumption module 30 in the battery product, and the power output module 12 outputs the electric energy input by the power module 20 to the subsequent circuit in the battery product to supply power to the subsequent circuit. When the battery product enters the sleep state, the control module 11 controls the power output module 12 to disconnect the electric energy input by the power module 20 according to the sleep trigger signal, so that the power module 20 is disconnected from the later-stage circuit, namely the power module 30, the later-stage circuit is in the power-off state and has no power consumption, the power module 20 is not required to consume energy, so as to achieve the optimal effect of reducing the power consumption, further the maximization of saving the power under the sleep state is realized, and the cruising ability and the service life of the battery are improved.
In some embodiments, the control module 11 is further configured to output a second power control signal to the power output module 12 according to the input wake-up signal; the power output module 12 is further configured to conduct the input power of the power module 20 according to the second power control signal. When the whole system of the battery product is in the sleep off state, the control module 11 outputs a second power control signal to the power output module 12 according to the wake-up signal, and then the power output module 12 conducts the input power of the power module 20, and at the moment, a later-stage circuit connected with the power output module 12 is electrified to wake-up the whole system of the battery product.
As an embodiment, referring to fig. 2, the control module 11 includes a sleep trigger signal input terminal a, a first capacitor C1 and a first switching tube Q1; one end of a first capacitor C1 is connected with the dormant trigger signal input end a, the other end of the first capacitor C1 is connected with the first end of a first switching tube Q1, the second end of the first switching tube Q1 is connected with a power output module 12, and the third end of the first switching tube Q1 is grounded.
The sleep trigger signal input terminal a in this embodiment is a PWM signal input terminal, and is configured to receive a PWM signal, where the PWM signal is given by a main chip, i.e., an MCU, of the battery product. When the PWM signal output end does not receive the PWM signal, it indicates that the MCU enters the sleep state and does not output the PWM signal, that is, the sleep trigger signal end receives the sleep trigger signal, so that the sleep trigger signal input end a does not receive the PWM signal, and the first switching tube Q1 is turned off to provide the first power control signal for the power output module 12.
In some embodiments, the power output module 12 includes a third switching tube Q3, a first resistor R1 and a fifth capacitor C5, where a first end of the third switching tube Q3 is connected to one end of the first capacitor C1 and the control module 11, a second end of the third switching tube Q3 is connected to the power output d (also a power input end of a subsequent power supply), a third end of the third switching tube Q3 and one end of the first resistor R1 are both connected to the power module 20, another end of the first resistor R1 is connected to a first end of the third switching tube Q3, and another end of the fifth capacitor C5 is grounded.
As an embodiment, the first switching tube Q1 and the third switching tube Q3 are all triodes, the first end of the first switching tube Q1 and the first end of the third switching tube Q3 are all base electrodes of the triodes, the second end of the first switching tube Q1 and the second end of the third switching tube Q3 are collector electrodes of the triodes, and the third end of the first switching tube Q1 and the third end of the third switching tube Q3 are emitter electrodes of the triodes.
When no PWM signal is input to the sleep trigger signal input terminal a, no signal is input to the base of the corresponding first switching tube Q1, the first switching tube Q1 is turned off, and the corresponding third switching tube Q3 is turned off, so that the input electric energy of the power module 20 cannot be output to the post-stage circuit through the third switching tube Q3, and the whole system is in a power-off state.
In some embodiments, referring to fig. 3, the control module 11 further includes a first wake-up signal input b, and the first wake-up signal input b is connected to the power output module 12. The first wake-up signal input terminal b in this embodiment is used for connecting to a clock chip in the battery product, receiving a low level signal (i.e. a first wake-up signal) output by the clock chip, where the first wake-up signal input terminal b is directly connected to a first end of the third switching tube Q3, i.e. a base of the triode. When the system is in the sleep off state, the clock chip reaches a timing value to output an alarm low level, and the low level signal passes through the first wake-up signal input end b to the first end of the third switching tube Q3, which is equivalent to pulling the first end signal of the third switching tube Q3 low, so that the third switching tube Q3 is conducted, and the input electric energy of the power module 20 is conveniently output to a post-stage circuit through the third switching tube Q3, thereby realizing the wake-up function.
In some embodiments, referring to fig. 4, the control module 11 further includes a second wake-up signal input terminal C, a second capacitor C2, and a second switching tube Q2; the second wake-up signal input end C is connected with one end of a second capacitor C2, the other end of the second capacitor C2 is connected with the first end of a second switching tube Q2, the second end of the second switching tube Q2 is connected with the first end of a third switching tube Q3, and the third end of the second switching tube Q2 is grounded.
The second switching tube Q2 in this embodiment is a triode, the first end of the second switching tube Q2 is a base electrode of the triode, the second end of the second switching tube Q2 is a collector electrode of the triode, and the third end of the second switching tube Q2 is an emitter electrode of the triode. The second wake-up signal input terminal c is configured to be connected to the hall sensor, and receive a second wake-up signal (a high level signal in this embodiment) output by the hall sensor. The second capacitor C2 is used as a coupling capacitor, and couples the second wake-up signal received by the second wake-up signal input end C to the first end of the second switching tube Q2, so that the second switching tube Q2 is turned on, the level signal of the first end of the third switching tube Q3 is pulled down, and then the third switching tube Q3 is turned on, so that the input electric energy of the power module 20 is output to the subsequent-stage circuit through the third switching tube Q3, and a wake-up function is realized.
The low-power consumption power supply control circuit 10 can output a low-level signal according to a clock chip in a battery product to realize a wake-up function, and can also output a high-level signal according to a Hall sensor in the battery product to realize the wake-up function. That is, the low power consumption power supply control circuit 10 of the present utility model can implement the wake-up function according to different wake-up sources.
In some embodiments, referring to fig. 5, the low power consumption power supply control circuit 10 further includes: the starting module 13 is connected with the power supply module 20 and the control module 11 and is used for outputting a starting signal to the control module 11 according to a starting trigger signal; the control module 11 is further configured to control the power output module 12 to conduct the electric energy input by the power module 20 according to the start signal, so that the power module 20 supplies power to the later-stage circuit, and ensure the normal operation of the battery product.
In some embodiments, referring to fig. 6, the starting module 13 includes a second resistor R2 and a key K1, one end of the second resistor R2 is connected to one end of the key K1, and the other end of the second resistor R2 is connected to the first end of the first switch tube Q1.
The starting trigger signal in the embodiment is triggered by a key K1; when the key K1 is not pressed, the output end of the power module 20 is connected to the third end of the third switching tube Q3, and at this time, since one end of the first resistor R1 is connected to the third end of the third switching tube Q3, the other end of the first resistor R1 is connected to the first end of the third switching tube Q3, and at this time, the third switching tube Q3 is in an off state, and the power output end d has no power output.
When the key K1 is pressed, the input electric energy of the power module 20 is connected to the first end of the first switching tube Q1 through the second resistor R2, so that the first switching tube Q1 is turned on, then the level signal of the first end of the third switching tube Q3 is pulled down, the third switching tube Q3 is turned on, the input electric energy of the power module 20 is output to the rear-stage circuit through the third switching tube Q3, power is supplied to the rear-stage circuit, and the battery product starts to work.
Meanwhile, the main chip of the battery product, namely the MCU, is electrified to start running, and then outputs a PWM signal to the control module 11, namely the dormant trigger signal input end a, wherein the PWM signal is coupled to the first end of the first switching tube Q1 through the first capacitor C1, so that the first switching tube Q1 is continuously in a switching state of being conducted and disconnected according to the PWM signal.
The first resistor R1 and the fifth capacitor C5 in the power output module 12 form an RC charge-discharge circuit, so that the first end of the third switching tube Q3 is continuously kept as a low-level signal, and further the third switching tube Q3 is kept in a continuously conducting state, and then the power module 20 continuously supplies power to the later-stage circuit, so as to ensure that the battery product works normally.
When the battery product enters a sleep state, the MCU stops outputting the PWM signal, and at this time, the sleep trigger signal input terminal a is equal to the sleep trigger signal when no PWM signal is input, and the corresponding first switching tube Q1 is turned off, so that the third switching tube Q3 is turned off to disconnect the power module 20 from the subsequent circuit. At this time, the later-stage circuit is in the power-off state without power consumption, and the power module 20 is not required to consume energy, so as to achieve the optimal effect of reducing power consumption, further realize the maximization of saving power under the dormant state, and improve the endurance capacity and the service life of the battery.
In some embodiments, the low power consumption power supply control circuit 10 further includes a sixth capacitor, one end of the sixth capacitor is connected to the output terminal of the power supply module 20, and the other end of the sixth power supply is grounded. The sixth capacitor is a filter capacitor, and the input voltage of the power module 20 is filtered by the filter capacitor and then supplied to the later-stage circuit, so as to improve the stability of the input power.
In some embodiments, the low-power consumption power supply control circuit 10 further includes a seventh capacitor, one end of the seventh capacitor is connected to the power supply output terminal d (the second end of the third switching tube Q3 in this embodiment), and the other end of the seventh capacitor is grounded. Similarly, the seventh capacitor is used as a filter capacitor to filter the electric energy output by the third switching tube Q3, so as to ensure the stability of the electric energy received by the later-stage circuit.
As another embodiment, referring to fig. 7, the control module 11 includes a sleep trigger signal input end a, a third capacitor C3, a control chip U1, a first wake-up signal input end b, a second wake-up signal input end C, and a fourth capacitor C4, where one end of the fourth capacitor C4 is connected to the 5 th pin of the control chip U1, and the other end of the fourth capacitor is connected to the second wake-up signal input end b; the sleep trigger signal input end a is connected with one end of a third capacitor C3, the other end of the third capacitor C3 is connected with the 2 nd pin of the control chip U1, the 6 th pin of the control chip U1 and the first wake-up signal input end b are both connected with the power output module 12, the 3 rd pin of the control chip U1 is connected with the first wake-up signal input end b, and the 5 th pin of the control chip U1 is connected with the second wake-up signal input end C.
When the key K1 is not pressed, the input voltage of the power module 20 is filtered by the sixth capacitor and then connected to the third end of the third switching tube Q3, one end of the first resistor R1 is connected with the third end of the third switching tube Q3, the other end of the first resistor R1 is connected with the first end of the third switching tube Q3, at this time, the third switching tube Q3 is in an off state, and the power output end d has no power output.
When the key K1 is pressed, the input electric energy of the power module 20 passes through the second resistor R2 to the 2 nd pin of the control chip U1, after the control chip U1 receives the input electric energy through the 2 nd pin, the control chip U1 controls the first end of the third switching tube Q3 to be a low-level signal through the 6 th pin, the third switching tube Q3 is turned on, and the input electric energy of the power module 20 is output through the third switching tube Q3 to supply power to the rear-stage circuit.
Meanwhile, the main chip of the battery product, namely the MCU, is electrified to start running, and then outputs a PWM signal to the control module 11, namely the dormant trigger signal input end a, the PWM signal is coupled to the 2 nd pin of the control chip U1 through the third capacitor C3, and the control chip U1 controls the 6 th pin to be in a high-low level conversion state continuously according to the PWM signal.
When the battery product enters a sleep state, the MCU stops outputting the PWM signal, at the moment, the sleep trigger signal input end a is equal to the sleep trigger signal when no PWM signal is input, after the corresponding control chip U1 is triggered according to the sleep trigger signal, the 6 th pin of the control chip U1 is a high level signal, and the 6 th pin of the control chip U1 is connected with the first end of the third switching tube Q3, the first end of the corresponding third switching tube Q3 is a high level signal, and the third switching tube Q3 is disconnected. At this time, the later-stage circuit is in the power-off state without power consumption, and the power module 20 is not required to consume energy, so as to achieve the optimal effect of reducing power consumption, further realize the maximization of saving power under the dormant state, and improve the endurance capacity and the service life of the battery.
When the system is in the sleep off state, the clock chip outputs a low-level signal to the first wake-up signal input end b after reaching the timing value, the first wake-up signal input end b is pulled to the low-level signal, and as the first wake-up signal input end b is connected with the first end of the third switching tube Q3, the first end of the corresponding third switching tube Q3 is the low-level signal, and the third switching tube Q3 is conducted, so that the power module 20 supplies power to the later-stage circuit, and the wake-up system works.
As an embodiment, when the system is in the sleep off state, the hall sensor may output a second wake-up signal (a high level signal in this embodiment) to the second wake-up signal input terminal C, where the second wake-up signal is coupled to the 5 th pin of the control chip U1 through the third capacitor C3, and at this time, the control chip U1 pulls the level signal at the first end of the third switching tube Q3 down to 0 potential through the 3 rd pin according to the second wake-up signal received by the 5 th pin, so that the third switching tube Q3 is turned on to wake-up the system to enter the working state.
The utility model further provides electric equipment, a power module, an electric module and the low-power-consumption power control circuit correspondingly, wherein the power module is connected with the electric module through the low-power-consumption power control circuit; the low-power consumption power supply control circuit is used for controlling the power supply module to be disconnected with the power utilization module according to the dormancy trigger signal, so that the power utilization module is powered off, the power consumption of the power supply module is reduced, the power consumption is further effectively reduced, and the endurance capacity and the service life of the battery are improved. Since the low power consumption power supply control circuit is described in detail above, it will not be described here again.
In summary, the utility model provides a low-power-consumption power supply control circuit and electric equipment, wherein the low-power-consumption power supply control circuit comprises a control module, a first power supply control signal and a second power supply control signal, wherein the control module is used for outputting the first power supply control signal according to a dormancy trigger signal; the power output module is connected with the control module and is used for being connected with the power module, and the electric energy input by the power module is disconnected according to the first power control signal, so that the power module is disconnected with the rear-stage circuit, the rear-stage circuit is in a power-off state, and the power consumption of the power module is not required at the moment, so that the optimal power consumption reduction effect is achieved, the power is saved to the maximum degree under the dormant state, and the cruising ability and the service life of the battery are improved.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.