CN114301124A - Power supply circuit and power supply management method - Google Patents
Power supply circuit and power supply management method Download PDFInfo
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- CN114301124A CN114301124A CN202111629708.XA CN202111629708A CN114301124A CN 114301124 A CN114301124 A CN 114301124A CN 202111629708 A CN202111629708 A CN 202111629708A CN 114301124 A CN114301124 A CN 114301124A
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Abstract
The embodiment of the invention relates to a power supply circuit and a power supply management method. And the emergency connection circuit is used for connecting the second power supply and the working circuit, so that the connection circuit can be used for connecting the first power supply and the second power supply under the control of the power supply management circuit, and the second power supply is used for providing over-discharge protection for the first power supply, thereby prolonging the service life of the first power supply and further improving the quality of the electrical equipment. Meanwhile, the emergency connection circuit can be switched on under the control of the power management circuit, the second power supply is connected to the working circuit, so that the equipment can supply power to the working circuit by using the second power supply when meeting special conditions and working urgently, thereby working in time and avoiding the generation of life or property loss caused by the fact that the equipment cannot work in time due to insufficient electric quantity.
Description
Technical Field
The invention relates to the field of equipment power supply, in particular to a power supply circuit and a power supply management method.
Background
With the development of the times and the advancement of science and technology, more and more electric appliances are applied to the life and work of people. Many electrical appliances need to be powered by batteries, and once the batteries are low in power, the electrical appliances cannot work, and even the batteries cannot be charged due to over-discharge of the batteries, so that the electrical appliances are damaged. Furthermore, in some fields, appliances need to be guaranteed to be ready to work. For example, in the medical field, some electronic medical devices are needed to timely treat patients with acute diseases, and in such a situation, if the electric devices cannot timely work due to insufficient battery power, huge life and property losses may be brought to people.
Disclosure of Invention
The invention aims to provide a power supply circuit and a power supply management method, which are used for managing electric energy of electrical equipment, avoiding the damage of the equipment caused by over-discharge of a power supply and avoiding the incapability of working due to insufficient electric quantity when the equipment is urgently required to work in special situations.
In a first aspect, an embodiment of the present invention provides a power supply circuit, where the power supply circuit includes: a working circuit; the first power supply is connected with the working circuit and used for supplying power to the working circuit; the power supply management circuit is respectively connected with the working circuit and the first power supply and is used for controlling the working circuit to work and detecting the electric quantity of the first power supply; the second power supply is connected with the power management circuit and used for supplying power to the power management circuit; the connecting circuit is arranged between the first power supply and the second power supply and is in signal connection with the power management circuit; an emergency connection circuit provided between the second power supply and the operating circuit; wherein the power management circuit is configured to send a first control signal to the connection circuit according to a magnitude of the first power; the connection circuit is configured to connect or disconnect the second power supply with or from the first power supply in response to the first control signal; the emergency connection circuit is configured to connect the second power source to the operating circuit in response to entering an emergency state on.
Further, the emergency connection circuit is in signal connection with the power management circuit; the power management circuit is configured to respond to the first power supply capacity being lower than a preset threshold value and receiving a work request signal of the work circuit, enter the emergency state and send a second control signal to the emergency connection circuit; the emergency connection circuit is configured to connect the second power source to the operating circuit in response to the second control signal being turned on.
Further, the power management circuit is configured to send a third control signal to the emergency connection circuit in response to the emergency connection circuit being on for a predetermined period of time or the first power source beginning to charge; the emergency connection circuit is configured to disconnect the second power supply from the operating circuit in response to the third control signal being disconnected.
Further, the power management circuit is configured to turn on a low power consumption ultra-long standby mode and send an alarm signal to a third party device in response to the emergency connection circuit being turned on for a predetermined time.
Further, the power supply circuit is applied to a pulse generator, and the working circuit is a pulse output circuit and is used for outputting a deep brain stimulation electric signal and/or a vagus nerve stimulation electric signal.
Further, the power of the working circuit is larger than that of the power management circuit, and the first power supply and the second power supply have the same capacity.
Further, the first control signal comprises an on signal and an off signal; the power management circuit is configured to send the make signal to the connection circuit in response to the power of the first power source being below a predetermined threshold, and to send the break signal to the connection circuit in response to the power of the first power source being above a predetermined threshold; the connection circuit includes a first switch that closes in response to the on signal and opens in response to the off signal.
Further, the emergency connection circuit includes a second switch that closes or manually closes in response to the second control signal to complete the emergency connection circuit.
On the other hand, the embodiment of the invention also provides a power management method, which comprises the following steps: the power management circuit detects the electric quantity of a first power supply; sending a first control signal to a connecting circuit according to the electric quantity value of the first power supply; the connection circuit connects or disconnects a second power source to or from the first power source in response to the first control signal; the emergency connection circuit connects the second power supply to the operating circuit in response to entering the emergency state.
Further, the emergency connection circuit, responsive to entering an emergency state, connecting the second power source to the working circuit, includes: the power management circuit detects whether the first power supply electric quantity is lower than a preset threshold value; responding to the situation that the electric quantity of the first power supply is lower than a preset threshold value, receiving a work request signal of the work circuit, entering the emergency state, and sending a second control signal to the emergency connection circuit; the emergency connection circuit is turned on in response to the second control signal.
Further, the method further comprises: the power management circuit responds to the emergency connection circuit being switched on for a preset time or the first power supply starts to charge, and sends a third control signal to the emergency connection circuit; the emergency connection circuit is disconnected in response to the third control signal, cutting off the connection between the second power supply and the operating circuit.
Further, the method further comprises: and the power supply management circuit responds to the situation that the emergency connection circuit is switched on to reach preset time, starts a low-power consumption ultra-long standby mode and sends an alarm signal to third-party equipment.
According to the power supply circuit and the power supply management method provided by the embodiment of the invention, the first power supply, the second power supply and the power supply management circuit are respectively arranged, so that the first power supply is used for supplying power to the working circuit, and the second power supply is used for supplying power to the power supply management circuit. And the emergency connection circuit is used for connecting the second power supply and the working circuit, so that the connection circuit can be used for connecting the first power supply and the second power supply under the control of the power supply management circuit, and the second power supply is used for providing over-discharge protection for the first power supply, thereby prolonging the service life of the first power supply and further improving the quality of the electrical equipment. Meanwhile, the emergency connection circuit can be switched on under the control of the power management circuit, the second power supply is connected to the working circuit, so that the equipment can supply power to the working circuit by using the second power supply when meeting special conditions and working urgently, the equipment can work in time, and the problem that the equipment cannot work in time due to insufficient electric quantity to cause life or property loss is avoided.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a modular structure of a power supply circuit according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating overall steps of a power management method according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating specific steps of steps S2 and S3 of the power management method according to the embodiment of the invention;
FIG. 4 is a diagram illustrating specific steps of steps S4 and S5 of the power management method according to the embodiment of the invention;
fig. 5 is a schematic block diagram of an internal circuit structure of a pulse generator according to an embodiment of the present invention.
Legend: 1. a working circuit; 2. a power management circuit; 3. a first power supply; 4. a second power supply; 5. a connection circuit; 6. an emergency connection circuit.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Meanwhile, it should be understood that, in the following description, a "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that there are no intervening elements present.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a schematic diagram of a modular structure of a power supply circuit according to an embodiment of the present invention, in which solid arrows indicate a power transmission direction, and hollow arrows indicate a signal transmission direction. As shown in fig. 1, the power supply circuit according to the embodiment of the present invention includes an operating circuit 1, a power management circuit 2, a first power supply 3, a second power supply 4, a connection circuit 5, and an emergency connection circuit 6. The working circuit 1 is a circuit for completing the work of the device, and can complete different works, such as signal transmission, display, vibration, and the like, according to the different devices. The first power supply 3 is connected with the working circuit 1 and is used for supplying power to the working circuit 1. The second power supply 4 is connected with the power management circuit 2 and is used for supplying power to the power management circuit 2. The power management circuit 2 is connected to the working circuit 1, the first power supply 3 and the connection circuit 5, respectively, and is configured to control the working circuit 1 to work and detect the electric quantity of the first power supply 3, and meanwhile, the power management circuit 2 is configured to send a first control signal to the connection circuit 5 according to the electric quantity value of the first power supply 3. The connection circuit 5 is provided between the first power supply 3 and the second power supply 4, and is in signal connection with the power management circuit 2, the connection circuit 5 being configured to connect or disconnect the second power supply 4 to or from the first power supply 3 in response to a first control signal. The emergency connection circuit 6 is provided between the second power supply 4 and the operating circuit 1, and is configured to connect the second power supply 4 to the operating circuit 1 in response to being turned on in response to entering an emergency state.
Because the power consumption of the power management circuit 2 is lower than that of the operating circuit 1, the power consumption of the first power supply 3 is higher than that of the second power supply 4, and in order to increase the versatility of the device, the first power supply 3 and the second power supply 4 generally use batteries with the same specification, so that when the power of the first power supply 3 is exhausted, the second power supply 4 still has sufficient power. Therefore, in the embodiment, when the power management circuit 2 detects that the electric quantity of the first power supply 3 is too low, the connection circuit 5 is controlled to be switched on, and the second power supply 4 is connected to the first power supply 3, so that over-discharge protection is provided for the first power supply 3, damage to the first power supply 3 due to over-discharge is avoided, and the service life of the device is prolonged. On the contrary, when charging, if the power management circuit 2 detects that the electric quantity of the first power supply 3 is higher than the predetermined value, the connection circuit 5 is controlled to be disconnected, so that the first power supply 3 is disconnected from the second power supply 4. Specifically, the first control signal includes an on signal and an off signal. The power management circuit 2 is configured to send a switch-on signal to the connection circuit 5 in response to the power level of the first power source 3 being below a predetermined threshold and to send a switch-off signal to the connection circuit 5 in response to the power level of the first power source 3 being above the predetermined threshold. The connection circuit 5 includes a first switch that is closed in response to the on signal and opened in response to the off signal. The embodiment realizes the function of automatically providing over-discharge protection for the first power supply 3 when the electric quantity of the first power supply is too low and automatically releasing the first power supply after charging in the above way.
In addition, since the power management circuit 2 can control the operation of the operating circuit 1, when the power management circuit 2 detects that the power of the first power supply 3 is insufficient, the power management circuit will control the operating circuit 1 to stop operating. However, when the working circuit 1 is urgently needed to work in an emergency, for example, the working circuit 1 is a working circuit of medical equipment, and when a patient has an attack of a disease and needs to be treated by using the equipment, the equipment can enter an emergency state, so that the second power supply 4 is connected to the working circuit 1 through the emergency connecting circuit 6 to supply power to the working circuit 1, and the working circuit 1 can work in time, thereby avoiding serious life or property loss. Specifically, the device may be brought into the emergency state by manual operation, or may be brought into the emergency state by automatic control of the power management circuit 2. The emergency connection circuit 6 includes a second switch that closes or is manually closed in response to a second control signal to turn on the emergency connection circuit 6. In the embodiment, the second switch is arranged, so that the emergency connection circuit 6 is switched on and off manually or automatically, and the emergency connection circuit 6 can realize the function of emergency power supply of the second power supply 4 to the working circuit 1.
In a specific embodiment, the emergency connection circuit 6 is in signal connection with the power management circuit 2. The power management circuit 2 is configured to enter an emergency state and send a second control signal to the emergency connection circuit 6 in response to the first power supply 3 being lower in power than a predetermined threshold and receiving an operation request signal of the operation circuit 1. The emergency connection circuit 6 is configured to connect the second power source 4 to the operating circuit 1 in response to the second control signal being turned on. The working request signal may be a feedback signal of the working circuit 1, and the power management circuit 2 may determine whether to enter an emergency state after receiving the feedback signal. In this embodiment, the power management circuit 2 can receive a feedback signal of the working circuit 1, and when the working circuit 1 detects that the working circuit 1 needs to work, the power management circuit 2 sends a work request signal to the power management circuit 2, and after receiving the work request signal, the power management circuit 2 controls the working circuit 1 to start working, and if the power management circuit 2 detects that the electric quantity of the first power supply 3 is lower than a predetermined threshold value when receiving the work request signal, that is, the first power supply 3 cannot supply power for the working circuit 1, the power management circuit 2 automatically enters an emergency state, and controls the emergency connection circuit 6 to be connected, so that the second power supply 4 supplies power for the working circuit 1. For example, the working circuit 1 is a working circuit of a medical device, the medical device is implanted into a human body, whether human diseases occur or not can be automatically detected by collecting human body information, and when the diseases occur, a working request signal can be automatically fed back to the power management circuit 2, so that the diseases can be treated in time. In this embodiment, through above-mentioned mode, can make the response of equipment more timely, further avoided needing the during operation, the reason such as the working circuit 1 is opened untimely because of 3 electric quantities of first power are not enough or emergency can not in time work, leads to giving other people and brings the problem of the loss of lives and property.
In some alternative embodiments, the power management circuit 2 is configured to send a third control signal to the emergency connection circuit 6 in response to the emergency connection circuit 6 being switched on for a predetermined period of time or the first power source 3 starting to charge. The emergency connection circuit 6 is configured to disconnect the connection between the second power supply 4 and the operation circuit 1 in response to the third control signal being disconnected. Since the emergency state is used only for emergency in a special situation and thus cannot be used for a long time, the emergency state should be released after the emergency is over. For example, the predetermined time period may be set to 48 hours, the user should charge the device within 48 hours, and when the emergency connection circuit 6 is connected for 48 hours, the power management circuit 2 will automatically control the emergency connection circuit 6 to be disconnected. In addition, if the first power supply 3 starts to charge during the emergency state, the first power supply 3 in the charging state can supply the electric energy required by the operation to the operating circuit 1, and the power management circuit 2 also controls the emergency connection circuit 6 to be disconnected after detecting that the electric quantity of the power supply 3 is increased. The embodiment realizes automatic release after the emergency state is started through the above mode, so that the use of the equipment is more automatic, and the electric quantity of the second power supply 4 is prevented from being exhausted, and irreversible influence on the service life of the equipment is avoided.
In some alternative embodiments, the power management circuit 2 is configured to turn on the low power ultra-long standby mode and to issue an alarm signal to a third party device in response to the emergency connection circuit 6 being turned on for a predetermined time. If the continuous on-time of the emergency connection circuit 6 reaches the preset time, for example, the emergency connection circuit is continuously on for 48 hours, and the user does not charge the pulse generator within the 48 hours, the power management circuit 2 starts the low-power consumption ultra-long standby mode after the emergency connection circuit 6 is disconnected, so as to avoid equipment damage and prolong the standby time, and meanwhile, the power management circuit 2 sends out an alarm signal to a third party to prompt the third party personnel to charge the equipment in time, so that the loss of lives and properties due to the fact that the equipment cannot be used is avoided. For example, when the device is medical equipment, an alarm signal is sent to third-party personnel such as family members, guardians, after-sales personnel of the device or manufacturers of the patient, so that the third-party personnel can timely know the information that the electric quantity of the device is insufficient, and timely charge the medical equipment or replace a battery and the like, thereby reducing the probability of danger of the patient.
In a specific embodiment, the power supply circuit is applied to a pulse generator, and the working circuit 1 is a pulse output circuit for outputting a deep brain stimulation electrical signal and/or a vagus nerve stimulation electrical signal. The pulse generator is a medical device, and can be implanted into human body, and can output deep brain stimulating electric signal to brain, and can output vagus nerve stimulating electric signal to vagus nerve so as to implement the treatment of epilepsy and depression. The embodiment applies the power supply circuit to the pulse generator, can protect the power supply of the pulse generator, and can avoid the occurrence of the accident that the pulse generator cannot be started due to insufficient electric quantity under the emergency condition, thereby providing better protection for the patient.
Fig. 2 is a schematic diagram illustrating overall steps of a power management method according to an embodiment of the present invention. As shown in fig. 2, the power management method according to the embodiment of the present invention includes the following steps:
s1, the power management circuit 2 detects the electric quantity of the first power supply 3;
s2, sending a first control signal to the connecting circuit 5 according to the electric quantity value of the first power supply 3;
s3, the connection circuit 5 connects or disconnects the second power supply 4 to or from the first power supply 3 in response to the first control signal;
s4, judging whether to enter an emergency state;
if the emergency state is not entered, returning to step S1 to continue detecting the power of the first power supply 3;
if the emergency state is entered, the next step S5 is executed;
s5, the emergency connecting circuit 6 is switched on, and the second power supply 4 is connected to the working circuit 1;
s6, judging whether the emergency connection circuit 6 is connected for a preset time;
if the preset time is reached, executing step S8;
s8, quitting the emergency state, forcibly starting the low-power consumption overlong standby mode, and sending an alarm signal to a third party;
if it is determined in the above step S6 that the predetermined time period has not been reached, the process goes to step S7;
s7, judging whether the first power supply 4 starts to charge or not;
if the first power supply 4 does not start charging, the process returns to step S5 to keep the emergency connection circuit 6 on;
if it is determined that the first power supply starts charging, the process goes to step S9;
s9, exiting the emergency state;
after the step S9 is finished and the emergency state is exited, the process returns to step S1, and the power management circuit 2 detects the first power amount again and loops according to the above steps.
Fig. 3 is a schematic diagram illustrating specific steps of steps S2 and S3 of the power management method according to the embodiment of the invention. As shown in fig. 3, the steps S2 and S3 specifically include the following steps:
s21, judging whether the electric quantity of the first power supply 3 is lower than a preset threshold value;
if the value is lower than the preset threshold value, the following steps are executed:
s22, the power management circuit 2 sends a connection signal to the connection circuit 5;
s31, the first switch on the connecting circuit 5 is closed in response to the connection signal;
if it is determined in the above step S21 that the electric power of the first power supply 3 is higher than the predetermined threshold, the following steps are executed:
s23, the power management circuit 2 sends a disconnection signal to the connection circuit 5;
s32 the first switch on the connection circuit 5 opens in response to the open signal.
Fig. 4 is a schematic diagram illustrating specific steps of steps S4 and S5 of the power management method according to the embodiment of the invention. As shown in fig. 4, the steps S4 and S5 specifically include the following steps:
s41: if the power of the first power source 3 is lower than the predetermined threshold, performing the next step S42, otherwise returning to the step S1;
s42, the power management circuit 2 judges whether the work request signal is received;
if the work request signal is not received, returning to the step S1;
if the work request signal is received, the next step S43 is executed;
s43, the power management circuit 2 enters an emergency state and sends a second control signal to the emergency connection circuit 6;
the emergency connection circuit 6 is turned on in response to the second control signal to connect the second power source 4 to the operation circuit 1S 51.
All working steps of the power management method of the embodiment of the invention are carried out based on the power supply circuit, and the power management method is executed by the power supply circuit, so that the second power supply 4 can be used for providing over-discharge protection for the first power supply 3, the service life of the first power supply is prolonged, and the quality of electrical equipment is improved. And make equipment can use second power 4 to supply power for operating circuit 1 when running into special circumstances and urgently needing work, make equipment can in time work, avoided equipment because the electric quantity is not enough can not in time work, lead to the production of life or property loss.
Fig. 5 is a schematic block diagram of an internal circuit structure of a pulse generator according to an embodiment of the present invention, and the specific application of the power supply circuit and the power management method will be described in detail below by taking the pulse generator shown in fig. 5 as an example. As shown in fig. 5, the power supply circuit of the pulse generator includes the above-mentioned operating circuit 1, the power management circuit 2, the first power supply 3, and the second power supply 4, and the specific connection relationship and control relationship thereof are shown in fig. 1, and are partially omitted in fig. 5. The working circuit 1 comprises a vagus nerve stimulation circuit 12 and a deep brain stimulation circuit 11, and can respectively send out vagus nerve stimulation electric signals and deep brain stimulation electric signals so as to stimulate the vagus nerve of a human body and the hippocampus of the brain, subthalamic nucleus, inner globus pallidus, anterior thalamic nucleus (ANT), cerebellum, substantia nigra, cerebral cortical region of a patient or focal region of an epileptic, and the like, thereby realizing treatment of diseases such as epilepsy. The working circuit 1 further comprises a pulse output circuit 13, and the pulse output circuit 13 is connected with the deep brain stimulation circuit 11 and the vagus nerve stimulation circuit 12 and can control the deep brain stimulation circuit 11 and the vagus nerve stimulation circuit 12 to send out stimulation so as to treat the patient. Specifically, after receiving the signal sent by the pulse output circuit 13, the first control circuit 111 in the deep brain stimulation circuit 11 outputs a deep brain stimulation electrical signal to the first electrode 113 through the first output circuit 112, and the first electrode 113 is implanted into the brain of the human body, so as to release the electrical signal to the brain to stimulate the brain for treatment. After receiving the same signal from the pulse output circuit 13, the second control circuit 121 in the vagus nerve stimulation circuit 12 outputs a vagus nerve stimulation signal to the second electrode 123 through the second output circuit 122, and the second electrode 123 is implanted on the vagus nerve of the human body, so as to release the electrical signal to the vagus nerve, thereby stimulating the vagus nerve to achieve the treatment. In addition, the working circuit 1 further comprises a brain wave collecting electrode 115, the brain wave collecting electrode 115 is implanted into a cerebral cortex of a human body, and can collect brain wave signals in the brain, and then the brain wave signals are transmitted to the deep brain stimulation circuit 11 through the input circuit 114, the deep brain stimulation circuit 11 monitors the brain wave signals, once the brain wave signals are abnormal, disease attack of a patient is explained, treatment is needed, at the moment, the deep brain stimulation circuit 11 feeds back a work request signal to the power management circuit 2, the power management circuit 2 controls the working circuit 1 to work after receiving the work request signal, deep brain stimulation electrical signals are sent to the brain, and vagus nerve stimulation electrical signals are sent to the vagus nerve. The brain wave signal can also be directly fed back to the power management circuit 2 through the deep brain stimulation circuit 11, and then processed by the power management circuit 2 to determine whether the brain wave signal is abnormal, if so, the power management circuit 2 directly controls the working circuit 1 to start working for treatment.
During the use of the pulse generator, the power of the working circuit 1 for outputting the pulse electrical signal is obviously larger than that of the power management circuit 2, and the first power supply 3 and the second power supply 4 in the pulse generator use rechargeable batteries with the same specification. Therefore, the single charging time of the first power supply 3 is significantly shorter than that of the second power supply 4, and the situation that the first power supply 3 is exhausted and the second power supply 4 is still sufficient is easy to occur during use. At this time, if the first power supply 3 continues to discharge, it will be over-discharged, and may cause irreversible damage to the battery, resulting in that the first power supply 3 cannot be charged, therefore, a circuit minimum threshold is set for the first power supply 3, when the power management circuit 2 detects that the electric quantity of the first power supply 3 is lower than the predetermined threshold, the power management circuit 2 will control the first circuit to stop working, and control the connection circuit 5 to be switched on, so that the second power supply 4 provides over-discharge protection for the first power supply 3, until the first power supply 3 is charged, and after the electric quantity is higher than the predetermined threshold, the connection circuit 5 is controlled to be switched off, and the working circuit 1 resumes normal working or waiting to work.
Under a special condition, the electric quantity of the first power supply 3 is lower than a preset threshold value, the over-discharge protection state is entered, and when the first power supply 3 is not charged, if a patient suffers a disease at the moment, the brain wave signals collected by the brain wave collecting electrode 115 are abnormal, the brain deep stimulation circuit 11 can still send a work request signal to the power supply management circuit 2, the power supply management circuit receives the work request signal and then controls the emergency connection circuit 6 to be connected, the second power supply 4 is connected to the work circuit 1, the second power supply 4 is enabled to supply power to the work circuit 1, and the work circuit 1 is started to start electrical stimulation treatment on the patient. The single maximum on-time of the emergency connection circuit 6 is 48 hours, and the user should charge the first power supply 3 and the second power supply 4 within 48 hours in time. Since the pulse generator is implanted in a human body for use, a wireless charging unit 7 is further provided, through which a user can charge the first power supply 3 and the second power supply 4. If the user starts charging while the emergency connection circuit 6 is connected and the power management circuit 2 detects that the electric quantity of the first power supply 3 is increased, the emergency connection circuit 6 is controlled to be disconnected, and the normal working mode that the first power supply 3 is used for supplying power to the working circuit 1 is recovered. If the user does not charge the pulse generator in time within 48 hours after the emergency connection circuit 6 is switched on, the power management circuit 2 controls the emergency connection circuit 6 to be switched off, and the working circuit 1 and the power management circuit 2 enter a low-power consumption overlong standby mode, so that the standby time of the equipment is prolonged, and the probability of equipment damage is reduced. Meanwhile, the power management circuit 2 can also send out an alarm signal to third-party personnel such as family members of patients or doctors or other working personnel, so that the third-party personnel can know that the electric quantity of the pulse generator is insufficient in time and charge the pulse generator as soon as possible, and the safety of the patients is guaranteed to the maximum extent. The low-power consumption overlong standby mode can be automatically released after the equipment starts to be charged, and the normal working state is recovered.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A power supply circuit, characterized in that the power supply circuit comprises:
an operating circuit (1);
the first power supply (3) is connected with the working circuit (1) and used for supplying power to the working circuit (1);
the power supply management circuit (2) is respectively connected with the working circuit (1) and the first power supply (3) and is used for controlling the working circuit (1) to work and detecting the electric quantity of the first power supply (3);
the second power supply (4) is connected with the power management circuit (2) and is used for supplying power to the power management circuit (2);
a connection circuit (5) disposed between the first power supply (3) and the second power supply (4) and signal-connected to the power management circuit (2);
an emergency connection circuit (6) provided between the second power supply (4) and the operating circuit (1);
wherein the power management circuit (2) is configured to send a first control signal to the connection circuit (5) depending on the magnitude of the electric quantity of the first power source (3);
the connection circuit (5) is configured to switch the second power supply (4) on or off the first power supply (3) in response to the first control signal;
the emergency connection circuit (6) is configured to connect the second power supply (4) to the operating circuit (1) in response to entering an emergency state on.
2. The supply circuit according to claim 1, characterized in that the emergency connection circuit (6) is in signal connection with the power management circuit (2);
the power management circuit (2) is configured to enter the emergency state and send a second control signal to the emergency connection circuit (6) in response to the first power supply (3) being below a predetermined threshold and receiving a work request signal from the work circuit (1);
the emergency connection circuit (6) is configured to connect the second power supply (4) to the operating circuit (1) in response to the second control signal being turned on.
3. The power supply circuit of claim 2, wherein the power management circuit (2) is configured to send a third control signal to the emergency connection circuit (6) in response to the emergency connection circuit (6) being on for a predetermined period of time or the first power source (3) starting to charge;
the emergency connection circuit (6) is configured to disconnect the connection between the second power supply (4) and the operating circuit (1) in response to the third control signal being disconnected.
4. The power supply circuit according to claim 2, wherein the power management circuit (2) is configured to turn on a low power ultra-long standby mode and to issue an alarm signal to a third party device in response to the emergency connection circuit (6) being turned on for a predetermined time.
5. The supply circuit according to any one of claims 1 to 4, characterized in that it is used in a pulse generator, and the operating circuit (1) is a pulse output circuit for outputting a deep brain stimulation electrical signal and/or a vagus nerve stimulation electrical signal.
6. The power supply circuit of claim 1, wherein the first control signal comprises an on signal and an off signal;
the power management circuit (2) is configured to send the switch-on signal to the connection circuit (5) in response to the power of the first power source (3) being below a predetermined threshold, and to send the switch-off signal to the connection circuit (5) in response to the power of the first power source (3) being above a predetermined threshold;
the connection circuit (5) includes a first switch that is closed in response to the on signal and opened in response to the off signal.
7. Supply circuit according to claim 2, characterized in that the emergency connection circuit (6) comprises a second switch which closes the emergency connection circuit (6) in response to the second control signal being closed or manually closed.
8. A method for power management, the method comprising:
the power management circuit (2) detects the electric quantity of the first power supply (3);
-sending a first control signal to a connection circuit (5) according to the electric quantity value of the first power source (3);
the connection circuit (5) connects or disconnects a second power supply (4) to or from the first power supply (3) in response to the first control signal;
an emergency connection circuit (6) connects the second power supply (4) to the operating circuit (1) in response to entering an emergency state.
9. The method of claim 8, further comprising:
the power management circuit (2) sends a third control signal to the emergency connection circuit (6) in response to the emergency connection circuit (6) being turned on for a predetermined period of time or the first power supply (3) starting to charge;
the emergency connection circuit (6) is disconnected in response to the third control signal, cutting off the connection between the second power supply (4) and the operating circuit (1).
10. The method of claim 9, further comprising:
and the power supply management circuit (2) responds to the situation that the emergency connection circuit (6) is switched on to reach preset time, starts a low-power-consumption overlong standby mode and sends out an alarm signal to third-party equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111629708.XA CN114301124A (en) | 2021-12-28 | 2021-12-28 | Power supply circuit and power supply management method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111629708.XA CN114301124A (en) | 2021-12-28 | 2021-12-28 | Power supply circuit and power supply management method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114301124A true CN114301124A (en) | 2022-04-08 |
Family
ID=80970964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111629708.XA Pending CN114301124A (en) | 2021-12-28 | 2021-12-28 | Power supply circuit and power supply management method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114301124A (en) |
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2021
- 2021-12-28 CN CN202111629708.XA patent/CN114301124A/en active Pending
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