Discharge energy storage system applied to laser therapeutic instrument

Abstract

The invention provides a discharge energy storage system applied to a laser therapeutic instrument, and relates to the technical field of energy storage and discharge, and the system comprises an energy storage assembly, an enabling control unit, a discharge control device, a discharge switch device and a discharge current limiting assembly. The enabling control unit is connected with the control end of the discharging control device, a first port of the discharging control device is externally connected with a direct-current power source, a second port of the discharging control device is connected with the control end of the discharging switch device, the control end of the discharging switch device is connected with a first port of the discharging switch device, and the first port of the discharging switch device is grounded. The second port of the discharge switch device is connected with the output end of the discharge current limiting assembly, and the input end of the discharge current limiting assembly is connected with the energy storage assembly. According to the invention, the enable control unit transmits the level signal to the discharge control device, so that the conduction of the discharge switch device is controlled, and the discharge control of the energy storage assembly is realized.

Description

A discharge energy storage system for use in laser therapy devices Technical Field

[0001] This invention relates to the field of energy storage and discharge technology, and more specifically, to a discharge energy storage system applied to a laser therapy device. Background Technology

[0002] Currently, high-power switching power supplies used in laser therapy equipment (such as laser therapy devices), especially medical-certified high-power switching power supplies, have limited power, commonly 1500W or 3000W. They are unsuitable for scenarios with low average power and high peak power (e.g., peak power above 5000W). Moreover, high-power switching power supplies are expensive. Therefore, more and more discharge energy storage systems have been invented and put into use in laser therapy equipment. To ensure the safe use of these discharge energy storage systems, regular inspection and maintenance are required. To avoid electric shock to maintenance personnel, the discharge energy storage system needs to be discharged before inspection and maintenance. When using existing discharge circuits to discharge the discharge energy storage system, since the existing discharge circuits do not have discharge start-stop recognition functions, they only achieve discharge by connecting the discharge circuit to the discharge energy storage system. Therefore, the existing discharge circuits are prone to discharging the energy storage device even when it does not need to be discharged, resulting in safety hazards during the discharge process, easily causing circuit damage, and seriously reducing the reliability of the discharge circuit. Summary of the Invention

[0003] This invention provides a discharge energy storage system for use in laser therapy devices, which solves the technical problem that the discharge circuit in existing discharge energy storage systems does not have a discharge start / stop identification function, resulting in safety hazards during the discharge process, easy circuit damage, and reduced reliability of the discharge circuit.

[0004] To achieve the above objectives, the technical solution adopted in this embodiment of the invention is as follows: In a first aspect, this embodiment provides a discharge energy storage system for a laser therapy device, comprising: an energy storage component, an enable control unit, a discharge controller, a discharge switch, and a discharge current limiting component; the enable control unit is connected to the control terminal of the discharge controller, a first port of the discharge controller is connected to an external DC power supply, a second port of the discharge controller is connected to the control terminal of the discharge switch, the control terminal of the discharge switch is connected to the first port of the discharge switch, the first port of the discharge switch is grounded, the second port of the discharge switch is connected to the output terminal of the discharge current limiting component, and the input terminal of the discharge current limiting component is connected to the energy storage component; the enable control unit is used to output a low-level signal to the control terminal of the discharge controller when a discharge start signal is received, controlling the discharge controller to be in an off state, so that the control terminal of the discharge switch receives the low-level signal, triggering the discharge switch to conduct, thereby enabling the energy storage component to release electrical energy to the discharge switch through the discharge current limiting component.

[0005] Furthermore, this embodiment of the invention provides a first possible implementation of the first aspect, wherein the discharge energy storage system further includes: a power supply input interface, a slow-charge current limiting component, and a slow-charge switching device; the power supply input interface is connected to the input terminal of the slow-charge current limiting component, the output terminal of the slow-charge current limiting component is connected to the first port of the slow-charge switching device, the second port of the slow-charge switching device is connected to the energy storage component, and the control terminal of the slow-charge switching device is connected to the enable control unit; the enable control unit is used to output a high-level signal to the control terminal of the discharge control device when a stop discharge signal is received, controlling the discharge control device to be in a conducting state, so that the control terminal of the discharge switching device receives a high-level signal, triggering the discharge switching device to open, so that the energy storage component stops releasing electrical energy to the discharge switching device through the discharge current limiting component; the enable control unit is used to output a high-level signal to the control terminal of the slow-charge switching device when a stop discharge signal is received, controlling the first port and the second port of the slow-charge switching device to be conducting, so that the power supply input interface stores energy to the energy storage component through the slow-charge switching device and the slow-charge current limiting component.

[0006] Furthermore, this embodiment of the invention provides a second possible implementation of the first aspect, wherein the discharge energy storage system further includes: a detection unit and a fast charging switch unit; the input terminal of the detection unit is connected to the energy storage component, and the output terminal of the detection unit is connected to the control terminal of the fast charging switch unit and the control terminal of the slow charging switch device; wherein, the detection unit is used to detect the voltage of the energy storage component; the first port of the fast charging switch unit is connected to the power supply input interface, the second port of the fast charging switch unit is connected to the energy storage component, and the fast charging switch unit is in an open state; the detection unit is used to trigger the first port and the second port of the slow charging switch device to return to the open state and trigger the first port and the second port of the fast charging switch unit to conduct when the voltage of the energy storage component is greater than a preset voltage threshold, so that the power supply input interface charges the energy storage component through the fast charging switch unit.

[0007] Furthermore, this embodiment of the invention provides a third possible implementation of the first aspect, wherein the discharge energy storage system further includes: a load switch unit; the control terminal of the load switch unit is connected to the output terminal of the detection unit, the first port of the load switch unit is connected to the energy storage component, the second port of the load switch unit is used to connect an external load, and the load switch unit is in an open state; the detection unit is used to charge the load switch unit when it detects that the voltage of the energy storage component is greater than a preset voltage threshold, and when the energy stored in the load switch unit reaches the power supply voltage threshold, it triggers the first port and the second port of the load switch unit to conduct, so that the energy storage component supplies power to the load through the load switch unit.

[0008] Furthermore, this embodiment of the invention provides a fourth possible implementation of the first aspect, wherein the discharge energy storage system further includes: a detection control unit, the detection unit including: a voltage comparator; the non-inverting input terminal of the voltage comparator is connected to the energy storage component, the inverting input terminal of the voltage comparator is connected to the output terminal of the detection control unit, the output terminal of the voltage comparator is connected to the control terminal of the fast charging switch unit and the control terminal of the slow charging switch device, and the control terminal of the detection control unit is connected to the enable control unit; the enable control unit is used to output a high-level signal to the control terminal of the detection control unit when a stop discharge signal is received, so that the output terminal of the detection control unit outputs a low-level signal to the inverting input terminal of the voltage comparator; the voltage comparator is used to trigger the first port and the second port of the fast charging switch unit to conduct when the voltage of the energy storage component detected at the non-inverting input terminal is greater than the low-level signal received at the inverting input terminal.

[0009] Furthermore, this embodiment of the invention provides a fifth possible implementation of the first aspect, wherein the discharge energy storage system further includes: an anti-charging lock-up unit; a first port of the anti-charging lock-up unit is connected to the power supply input interface, a second port of the anti-charging lock-up unit is connected to the input terminal of the slow-charge current limiting component, a control terminal of the anti-charging lock-up unit is used to connect to an external DC power supply, and the anti-charging lock-up unit is in a conducting state; when the enable control unit receives a signal to start charging, it controls the DC power supply to charge the anti-charging lock-up unit; when the energy stored in the anti-charging lock-up unit reaches the anti-lock-up voltage threshold, it triggers the first port and the second port of the anti-charging lock-up unit to disconnect, so as to stop the power supply input interface from supplying power to the energy storage component through the slow-charge current limiting component and the slow-charge switching device.

[0010] Furthermore, this embodiment of the invention provides a sixth possible implementation of the first aspect, wherein the discharge energy storage system further includes: an auxiliary unit; the auxiliary unit is connected to the power supply input interface, and the auxiliary unit is used to store voltage when the energy storage component is charged.

[0011] Furthermore, this embodiment of the invention provides a seventh possible implementation of the first aspect, wherein the discharge energy storage system further includes: a protection unit; the input terminal of the protection unit is connected to the power supply input interface, and the output terminal of the protection unit is connected to the input terminal of the slow-charge current limiting component.

[0012] Furthermore, the present invention provides an eighth possible implementation of the first aspect, wherein the discharge energy storage system further includes: a filtering unit; the input terminal of the filtering unit is connected to the power supply input interface, the output terminal of the filtering unit is connected to the input terminal of the slow charge current limiting component, and the filtering unit is connected in parallel with the protection unit.

[0013] Furthermore, the present invention provides a ninth possible implementation of the first aspect, wherein the discharge energy storage system further includes: a reverse connection protection unit; the input terminal of the reverse connection protection unit is connected to the power supply input interface, and the output terminal of the reverse connection protection unit is connected to the input terminal of the slow charge current limiting component; the reverse connection protection unit is used to conduct when the power supply input interface is positively connected to the external power supply, and to disconnect when the power supply input interface is reversely connected to the external power supply.

[0014] This invention provides a discharge energy storage system for a laser therapy device. The system includes an energy storage component, an enable control unit, a discharge controller, a discharge switch, and a discharge current limiting component. The enable control unit is connected to the control terminal of the discharge controller. The first port of the discharge controller is connected to an external DC power supply. The second port of the discharge controller is connected to the control terminal of the discharge switch. The control terminal of the discharge switch is connected to the first port of the discharge switch, which is grounded. The second port of the discharge switch is connected to the output terminal of the discharge current limiting component, and the input terminal of the discharge current limiting component is connected to the energy storage component. The enable control unit outputs a low-level signal to the control terminal of the discharge controller when it receives a signal to begin discharging, controlling the discharge controller to be in an off state. This causes the control terminal of the discharge switch to receive the low-level signal, triggering the discharge switch to conduct, so that the energy storage component releases electrical energy to the discharge switch through the discharge current limiting component. This invention controls the enable control unit to send a low-level signal to the control terminal of the discharge control device when the energy storage module needs to discharge, thus putting the discharge control device in an off state. At this time, the control terminal of the discharge switch receives the low-level signal and triggers the discharge switch to turn on, allowing the energy storage module to release electrical energy to the discharge switch through the discharge current limiting component. The enable control unit sends a level signal to control the start and stop of the energy storage module's discharge, ensuring that the energy storage module will only start discharging when the enable control unit sends a low-level signal to the control terminal of the discharge control device. This avoids discharging the energy storage module when it does not need to discharge, reduces safety hazards during the energy storage module's discharge process, easily avoids circuit damage, and improves the reliability of the discharge energy storage system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 is a circuit module schematic diagram of a discharge energy storage system provided in an embodiment of the present invention; Figure 2 is a general circuit schematic diagram of a discharge energy storage system provided in an embodiment of the present invention; Figure 3 is a unit schematic diagram of a discharge energy storage system provided in an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0018] This embodiment provides a discharge energy storage system for a laser therapy device. Referring to Figure 1, which shows a circuit module diagram of a discharge energy storage system, the system mainly includes: an energy storage component 102, an enable control unit 15, a discharge controller M12, a discharge switch M11, and a discharge current limiting component 101. The enable control unit 15 is connected to the control terminal of the discharge controller M12. The first port of the discharge controller M12 is connected to an external DC power supply, and the second port of the discharge controller M12 is connected to the control terminal of the discharge switch M11. The control terminal of the discharge switch M11 is connected to the first port of the discharge switch M11. The discharge switching device M11 is connected to the first port, which is grounded. The second port of the discharge switching device M11 is connected to the output of the discharge current limiting component 101, and the input of the discharge current limiting component 101 is connected to the energy storage component 102. The enable control unit 15 outputs a low-level signal to the control terminal of the discharge controller M12 when it receives a signal indicating the start of discharge, controlling the discharge controller M12 to be in an off state. This causes the control terminal of the discharge switching device M11 to receive a low-level signal, triggering the discharge switching device M11 to conduct, so that the energy storage component 102 releases electrical energy to the discharge switching device M11 through the discharge current limiting component 101. Figure 2 shows a schematic diagram of the overall circuit of a discharge energy storage system. The energy storage component 102 includes a parallel capacitor C203 (a polarized capacitor) and a capacitor C204; the discharge controller M12 is an NMOS transistor; the discharge switching device M11 is a PMOS transistor; the discharge current limiting component 101 includes an enable control unit 15 connected to the control terminal of the discharge controller M12 (i.e., the gate of the discharge controller M12); the first port of the discharge controller M12 (i.e., the drain of the discharge controller M12) is connected to an external DC power supply VCC; and the second port of the discharge controller M12 (i.e., the source of the discharge controller M12) is connected to the source of the discharge controller M12. The control terminal of the discharge switch device M11 (i.e., the gate of the discharge switch device M11) is connected to the control terminal of the discharge switch device M11, which is connected to the first port of the discharge switch device M11 (i.e., the drain of the discharge switch device M11). The first port of the discharge switch device M11 is grounded. The second port of the discharge switch device (i.e., the source of the discharge switch device M11) is connected to the output terminal of the discharge current limiting component 101 (i.e., one end of the resistor R229). The input terminal of the discharge current limiting component 101 (i.e., one end of the resistor R227) is connected to the energy storage component 102 (i.e., the anode of the polarized capacitor C203 and one end of the capacitor C204).The enable control unit 15 outputs a low-level signal to the gate (pin G of the NMOS transistor) of the discharge controller M12 when it receives a signal to start discharging. Since the discharge controller M12 is an NMOS transistor, it is in the off state. At this time, the gate of the discharge switch M11 is grounded, and the gate of the discharge switch M11 receives a low-level signal. Since the discharge switch M11 is a PMOS transistor, it is turned on when its gate receives a low-level signal. Therefore, when the enable control unit 15 receives a signal to stop charging and start discharging, the discharge switch M11 remains on. In the on state, the energy storage component 102 releases electrical energy to the ground through resistors R227, R228, and R229 and discharge switch device M11; referring to the unit schematic diagram of a discharge energy storage system shown in Figure 3, the discharge energy storage system provided in this embodiment of the invention includes: energy storage unit 14, enable control unit 15, slow discharge unit 19, and discharge switch unit 20; wherein, the energy storage unit 14 includes: energy storage component 102 (i.e., parallel capacitor C203 (a polarized capacitor) and capacitor C204); the slow discharge unit 19 includes: discharge current limiting component 101 (i.e., resistors R227 and R228 connected in series). 28 and resistor R229); the discharge switch unit 20 includes: a discharge switch device M11 and a discharge controller device M12; the enable control unit 15 is connected to the control terminal of the discharge switch unit 20 (i.e., the gate of the discharge controller device M12), the first port of the discharge switch unit 20 (i.e., the drain of the discharge switch device M11) is grounded, the second port of the discharge switch unit 20 (i.e., the source of the discharge switch device M11) is connected to the output terminal of the slow discharge unit 19 (i.e., the output terminal of the discharge current limiting component 101), and the input terminal of the slow discharge unit 19 (i.e., the input terminal of the discharge current limiting component 101) is connected to the energy storage unit 14 (i.e., the energy storage unit 14). The energy storage unit 14 is connected to the energy storage unit 102, and the slow discharge unit 19 is used for current limiting. The enable control unit 15 is used to output a low-level signal to the control terminal (i.e., the gate of the discharge controller M12) of the discharge switch unit 20 when a signal to stop charging is received, so that the discharge switch unit 20 is turned on, and the energy storage unit 14 releases electrical energy to the ground through the slow discharge unit 19 and the discharge switch unit 20. As shown in FIG2, the enable control unit 15 includes: resistor R209, resistor R210 and capacitor C205; the discharge switch unit 20 also includes: resistor R230, resistor R231, resistor R232, capacitor C214 and capacitor C215.One end of resistor R230 is connected to the line between resistors R209 and R210 in the enable control unit 15. The other end of resistor R230 is connected to one end of capacitor C214 and the gate (pin G of the NMOS transistor) of discharge controller M12. The other end of capacitor C214 is grounded. The drain (pin D of the NMOS transistor) of discharge controller M12 is used to connect to the external DC power supply VCC. The source (pin S of the NMOS transistor) of discharge controller M12 is connected to one end of resistor R231 and one end of resistor R232. The other end of resistor R232 is connected to one end of capacitor C215 and the gate (pin G of the PMOS transistor) of discharge switch device M11. The other end of capacitor C215 and the other end of resistor R231 are connected to the discharge switch device... The drain of M11 (PMOS pin D) is grounded, and the source of M11 (PMOS pin S) is connected to one end of resistor R229. The other end of resistor R229 is connected to one end of resistor R228, the other end of resistor R228 is connected to one end of resistor R227, and the other end of resistor R227 is connected to energy storage unit 14 (the anode of polarized capacitor C203 and one end of capacitor C204). Resistors R209, R210, R227, R228, R229, R230, R231, R232, capacitors C205, C214, and C215 collectively function as voltage regulators, current limiters, clampers, and filters.

[0019] The discharge energy storage system provided in this embodiment of the invention controls the enable control unit to send a low-level signal to the control terminal of the discharge control device when the energy storage module needs to discharge, so that the discharge control device is in an off state. At this time, the control terminal of the discharge switch device receives the low-level signal and triggers the discharge switch device to conduct, so that the energy storage module releases electrical energy to the discharge switch device through the discharge current limiting component. The enable control unit sends a level signal to control the start and stop of the discharge of the energy storage module, ensuring that the energy storage module will only start discharging when the enable control unit sends a low-level signal to the control terminal of the discharge control device. This avoids discharging the energy storage module when it does not need to discharge, reduces the safety hazards that may occur during the discharge process of the energy storage module, easily avoids circuit damage, and improves the reliability of the discharge energy storage system.

[0020] In one embodiment, as shown in FIG2, the discharge energy storage system provided in this embodiment further includes: a power supply input interface 11, a slow-charge current limiting component, and a slow-charge switch device M1; the power supply input interface 11 is connected to the input terminal of the slow-charge current limiting component, the output terminal of the slow-charge current limiting component is connected to the first port of the slow-charge switch device M1, the second port of the slow-charge switch device M1 is connected to the energy storage component 102, and the control terminal of the slow-charge switch device M1 is connected to the enable control unit 15; the enable control unit 15 is used to output a high-level signal to the control terminal of the discharge controller device when a signal to stop discharging is received, thereby controlling the discharge. When the control device is in the ON state, a high-level signal is received at the control terminal of the discharge switch M1, triggering the discharge switch M1 to open, so that the energy storage component 102 stops releasing electrical energy to the discharge switch M1 through the discharge current limiting component 101; the enable control unit 15 is used to output a high-level signal to the control terminal of the slow charge switch when it receives a stop discharge signal, controlling the first port and the second port of the slow charge switch M1 to be connected, so that the power supply input interface 11 stores energy to the energy storage component 102 through the slow charge switch M1 and the slow charge current limiting component; as shown in Figure 2, the slow charge current limiting component The device includes resistors R201, R202, and R203 connected in series; the slow-charge switch M1 is an NMOS transistor; the power input interface 11 can charge the energy storage component 102 by connecting to the power supply VIN. The power input interface 11 is connected to the input terminal of the slow-charge current limiting component (i.e., one end of resistor R201 is connected), and the output terminal of the slow-charge current limiting component (i.e., one end of resistor R203 is connected) is connected to the first port (i.e., the drain of the slow-charge switch M1). By setting the slow-charge current limiting component, the resistors R201, R202, and R203 connected in series are used to charge the energy storage component 102. Resistor R203 limits the current in the charging circuit to prevent voltage surges in the energy storage component 102 during charging and to prevent damage to capacitors C203 and C204. The second port of the slow-charge switch M1 (i.e., the source of the slow-charge switch M1) is connected to the energy storage component 102 (i.e., the anode of capacitor C203 and one end of capacitor C204). The control terminal of the slow-charge switch M1 (i.e., the gate of the slow-charge switch M1) is connected to the enable control unit 15. The slow-charge switch M1 is an NMOS transistor, and it is in the off state when the gate does not receive a high-level signal.The enable control unit 15 outputs a high-level signal to the gate (pin G of the NMOS transistor) of the discharge controller M12 when it receives a signal to stop discharging. Since the discharge controller M12 is an NMOS transistor, it turns on when its gate receives a high-level signal. At this time, the DC power supply VCC connected to the drain of the discharge controller M12 outputs a high-level signal to the gate of the discharge switch device M11. Since the discharge switch device M11 is a PMOS transistor, it turns off when its gate receives a high-level signal. The energy storage component 102 stops discharging through the discharge current limiting component 101 and the discharge... Switching device M11 releases electrical energy to the ground; enabling control unit 15 outputs a high-level signal to the gate of slow-charge switching device M1 when it receives a signal to stop discharging. Since slow-charge switching device M1 is an NMOS transistor, it turns on when it receives a high-level signal at its gate. At this time, the power supply VIN connected to the power supply input interface 11 supplies power to the energy storage component 102 through the slow-charge current limiting component and the slow-charge switching device M1. As shown in Figure 3, the discharge energy storage system provided in this embodiment of the invention also includes a power supply input interface 11, a slow-charge unit 12, and a slow-charge current limiting component. The slow-charge unit 12 includes a slow-charge current limiting component. (i.e., resistors R201, R202, and R203 connected in series); the slow-charge switching unit 13 includes: a slow-charge switching device M1; a power input interface 11 connected to the input terminal of the slow-charge unit 12 (i.e., the input terminal of the slow-charge current limiting component), the output terminal of the slow-charge unit 12 (i.e., the output terminal of the slow-charge current limiting component) connected to the first port of the slow-charge switching unit 13 (i.e., the drain of the slow-charge switching device M1), the slow-charge unit 12 being used for current limiting; the second port of the slow-charge switching unit 13 (i.e., the source of the slow-charge switching device M1) connected to the energy storage unit 14 (i.e., the energy storage component 102), the slow-charge switching... The control terminal of the off unit 13 (i.e., the gate of the slow charge switching device M1) is connected to the enable control unit 15, and the slow charge switching unit 13 is in the off state; as shown in Figure 2, the slow charge switching unit 13 also includes: resistors R204, R205, R206, R207, R208, capacitors C201 and C202, a first slow charge control switching device M2 (an N-type field-effect transistor (NMOS transistor)), a second slow charge control switching device M3 (a P-type field-effect transistor (PMOS transistor)), and a third slow charge control switching device M4 (an N-type field-effect transistor (NMOS transistor));The power input interface 11 is connected to one end of resistor R201 (as the input terminal of the slow charging unit 12), the other end of resistor R201 is connected to one end of resistor R202, the other end of resistor R202 is connected to one end of resistor R203, the other end of resistor R203 (as the output terminal of the slow charging unit 12) is connected to the drain of the slow charging switch device M1 (pin D of the NMOS transistor), the source of the slow charging switch device M1 (pin S of the NMOS transistor) is connected to the anode of capacitor C203 and one end of capacitor C204, and the cathode of capacitor C203 is connected in parallel with the other end of capacitor C204 and grounded; the gate of the slow charging switch device M1 (pin G of the NMOS transistor) is connected to the source of the slow charging switch device M1. One end of resistor R207 is connected to one end of capacitor C202, one end of resistor R206, and the drain (PMOS pin D) of the third slow-charge control switch M4. The other end of capacitor C202 and the other end of resistor R206 are connected in parallel and then grounded. The source (PMOS pin S) of the third slow-charge control switch M4 is connected to one end of resistor R205 and then externally connected to the DC power supply VCC. The gate (PMOS pin G) of the third slow-charge control switch M4 is connected to the drain (NMOS pin D) of the first slow-charge control switch M2 and the other end of resistor R205. The first slow-charge control switch... The source (pin S of the NMOS transistor) of the first slow-charge control switch M2 is grounded. The gate (pin G of the NMOS transistor) of the first slow-charge control switch M2 is connected to one end of resistor R204, one end of capacitor C201, and the drain (pin D of the NMOS transistor) of the second slow-charge control switch M3. The other end of capacitor C201 is grounded. The other end of resistor R204 is connected to one end of resistor R209 and one end of resistor R210 in the enable control unit 15. When the enable control unit 15 receives a signal to start charging the energy storage unit 14, the DC power supply VCC in the enable control unit 15 outputs to the gate of the first slow-charge control switch M2 through resistor R204. When a high-level signal is received, the first slow-charge control switch M2, being an NMOS transistor, is turned on when its gate receives a high-level signal. At this time, the gate of the third slow-charge control switch M4 is grounded through the drain and source of the first slow-charge control switch M2. When a low-level signal is received, the third slow-charge control switch M4, being a PMOS transistor, is turned on when its gate receives a low-level signal. At this time, the DC power supply VCC in the slow-charge switch unit 13 outputs a high-level signal to the gate of the slow-charge switch M1 through the source and drain of the third slow-charge control switch M4.Since the slow-charge switch M1 is an NMOS transistor, it turns on when its gate receives a high-level signal. At this time, the power supply VIN can be charged through resistors R201, R202, and R203, as well as the drain and source terminals of the slow-charge switch M1 (i.e., capacitors C203 and C204).

[0021] In one embodiment, as shown in FIG3, the discharge energy storage system provided in this embodiment further includes: a detection unit 16 and a fast charging switch unit 17; the input terminal of the detection unit 16 is connected to the energy storage component 102, and the output terminal of the detection unit 16 is connected to the control terminal of the fast charging switch unit 17 and the control terminal of the slow charging switch device; wherein, the detection unit 16 is used to detect the voltage of the energy storage component 102; the first port of the fast charging switch unit 17 is connected to the power supply input interface 11, the second port of the fast charging switch unit 17 is connected to the energy storage component 102, and the fast charging switch unit 17 is in an open state; the detection unit 16 is used to trigger the first port and the second port of the slow charging switch device when the voltage of the energy storage component 102 is greater than a preset voltage threshold. The port returns to the disconnected state, triggering the first port and the second port of the fast charging switch unit 17 to conduct, so that the power supply input interface 11 charges the energy storage component 102 through the fast charging switch unit 17; as shown in Figure 2, the fast charging switch unit 17 includes: a fast charging switch device M5 (an N-type field-effect transistor (NMOS transistor)); the input terminal of the detection unit 16 is connected to the energy storage component 102 (i.e., the energy storage unit 14), and the output terminal of the detection unit 16 is connected to the control terminal of the fast charging switch unit 17 (i.e., the gate of the fast charging switch device M5) and the gate of the slow charging switch device M1. The detection unit 16 is used to collect the voltage stored in the energy storage unit 14 in real time and compare the collected voltage of the energy storage unit 14 with a preset voltage threshold; fast charging The first port of the switching unit 17 (i.e., the drain of the fast-charging switching device M5) is connected to the power input interface 11, and the second port of the fast-charging switching unit 17 (i.e., the source of the fast-charging switching device M5) is connected to the energy storage unit 14 (i.e., capacitors C203 and C204). The fast-charging switching unit 17 is in the off state. When the power input interface 11 charges the energy storage unit 14 through the slow-charging unit 12, the input terminal of the detection unit 16 samples the voltage stored in the energy storage unit 14 in real time and compares the voltage of the energy storage unit 14 with a preset voltage threshold. When the voltage of the energy storage unit 14 is greater than the preset voltage threshold, it proves that the electrical energy stored in the energy storage unit 14 meets the requirements, and the detection unit 16 triggers the slow-charging switching unit. When the first and second ports of 13 (i.e., the source and drain of the slow-charge switching device M1) are restored to the open state, the first and second ports of the fast-charge switching unit 17 (i.e., the source and drain of the fast-charge switching device M5) are triggered to be turned on, switching to the fast energy storage circuit, so that the power supply VIN charges the energy storage unit 14 through the power supply input interface 11 and the fast-charge switching unit 17; as shown in Figure 2, the fast-charge switching unit 17 also includes: resistors R218, R219, R220, R221, capacitors C210 and C211, the first fast-charge control switching device M6 (an N-type field-effect transistor (NMOS transistor)) and the second fast-charge control switching device M7 (a P-type field-effect transistor (PMOS transistor));The anode of capacitor C203 and one end of capacitor C204 are connected to the source (pin S of the NMOS transistor) of fast-charging switch M5 and the input of detection unit 16. The output of detection unit 16 is connected to one end of resistor R218 and one end of resistor R208. The other end of resistor R208 is connected to the gate of the second slow-charging control switch M3, and the source of the second slow-charging control switch M3 is grounded. When the voltage of energy storage unit 14 (i.e., energy storage component 102) detected at the input of detection unit 16 is greater than a preset voltage threshold, the output of detection unit 16 outputs a high-level signal to the gate of the second slow-charging control switch M3 through resistor R208. Since the second slow-charging control switch M3 is an NMOS transistor... When the gate of the second slow-charge control switch M3 receives a high-level signal, the gate of the first slow-charge control switch M2 is grounded through the source and drain of the second slow-charge control switch M3. When the gate of the first slow-charge control switch M2 receives a low-level signal, it is turned off because it is an NMOS transistor. At this time, the DC power supply VCC in the slow-charge switch unit 13 outputs a high-level signal to the gate of the third slow-charge control switch M4 through resistor R205. The third slow-charge control switch M4 is a PMOS transistor, and it is turned off when its gate receives a high-level signal. The gate of the fast charging switch M1 is grounded through resistor R206. When the gate of the slow charging switch M1 receives a low-level signal, since the slow charging switch M1 is an NMOS transistor, it is turned off when the gate receives a low-level signal. At this time, the power supply VIN stops slowly charging the energy storage unit 14 through resistors R201, R202, R203, and the drain and source of the slow charging switch M1. The other end of resistor R218 is connected to one end of capacitor C210 and the gate of the first fast charging control switch M6. The other end of capacitor C210 is grounded. The source (pin S of the NMOS transistor) of the first fast charging control switch M6 is grounded, and the drain (pin S of the NMOS transistor) of the first fast charging control switch M6 is also grounded. The pin D of the transistor is connected to one end of resistor R219 and the gate (pin G of the PMOS transistor) of the second fast charging control switch M7. The other end of resistor R219 is connected to the source of the second fast charging control switch M7 and then connected to an external DC power supply VCC. The drain (pin D of the PMOS transistor) of the second fast charging control switch M7 is connected to one end of resistor R221, one end of capacitor C211, and one end of resistor R220. The other end of capacitor C211 is connected to the other end of resistor R220 and then grounded. The other end of resistor R221 is connected to the gate (pin G of the NMOS transistor) of the fast charging switch M5. The drain (pin D of the NMOS transistor) of the fast charging switch M5 is connected to the power supply input interface 11.When the voltage of the energy storage unit 14 detected at the input terminal of the detection unit 16 is greater than the preset voltage threshold, the output terminal of the detection unit 16 outputs a high-level signal to the gate of the first fast-charging control switch device M6 through resistor R218. Since the first fast-charging control switch device M6 is an NMOS transistor, it turns on when its gate receives a high-level signal. At this time, the gate of the second fast-charging control switch device M7 is grounded through the drain and source of the first fast-charging control switch device M6, and the gate of the second fast-charging control switch device M7 receives a low-level signal. Since the second fast-charging control switch device M7 is a PMOS transistor, it turns on when its gate receives a low-level signal. At this time, the DC power supply VCC in the fast-charging switch unit 17 outputs a high-level signal to the fast-charging switch device M7 through resistor R221. Since the gate of the fast-charging switch M5 is an NMOS transistor, it turns on when it receives a high-level signal. At this time, the power supply VIN connected to the power input interface 11 can directly fast-charge the energy storage unit 14 through the fast-charging switch M5. Resistors R218, R219, R220, R221, and capacitors C210 and C211 together serve to regulate voltage, limit current, clamp, and filter. When the energy storage unit 14 is fast-charged through the fast-charging switch unit 17, the detection unit 16 controls the slow-charging switch unit to open, stopping the slow-charging of the energy storage unit 14. Furthermore, no current-limiting resistor is set on the fast-charging line, so the power supply VIN can charge the energy storage unit 14 at the fastest speed through the fast-charging switch M5, ensuring that the energy storage unit 14 always maintains sufficient energy.

[0022] In one embodiment, as shown in FIG3, the discharge energy storage system provided in this embodiment further includes: a load switch unit 18; the control terminal of the load switch unit 18 is connected to the output terminal of the detection unit 16, the first port of the load switch unit 18 is connected to the energy storage component 102, the second port of the load switch unit 18 is used to connect an external load, and the load switch unit 18 is in an open state; the detection unit 16 is used to charge the load switch unit 18 when it detects that the voltage of the energy storage component 102 is greater than a preset voltage threshold, and to trigger the load when the energy stored in the load switch unit 18 reaches the supply voltage threshold. The first port and the second port of the switching unit 18 are connected to enable the energy storage component 102 to supply power to the load via the load switching unit 18. As shown in Figure 2, the load switching unit 18 includes a power supply delay component and a power supply switching device M8 (an NMOS transistor). The input terminal of the power supply delay component serves as the control terminal of the load switching unit 18 and is connected to the output terminal of the detection unit 16. The output terminal of the power supply delay component is connected to the gate (i.e., pin G of the NMOS transistor) of the power supply switching device M8. The drain (i.e., pin D of the NMOS transistor) of the power supply switching device M8 serves as the control terminal of the load switching unit 18. The first port is connected to the energy storage component 102 (i.e., energy storage unit 14). The source of the power supply switching device M8 (i.e., pin S of the NMOS transistor) serves as the second port of the load switching unit 18 for connecting an external load VLOAD. The detection unit 16 charges the power supply delay component in the load switching unit 18 when the voltage of the energy storage unit 14 is greater than a preset voltage threshold. When the energy stored in the power supply delay component reaches the power supply voltage threshold, the power supply delay component outputs a high-level signal to the gate of the power supply switching device M8. Since the power supply switching device M8 is an NMOS transistor, the power supply... When the switching device M8 receives a high-level signal at its gate, it is turned on. The energy storage unit 14 can supply power to the external load VLOAD through the drain and source of the power supply switching device M8. As shown in Figure 2, the load switching unit 18 also includes: resistors R222, R223, R224, R225, and R226; capacitors C212 and C213; a first power supply control switching device M9 (an NMOS transistor); and a second power supply control switching device M10 (a PMOS transistor). The power supply delay component is composed of resistor R223 and capacitor C212.The output terminal of detection unit 16 is connected to one end of resistor R222 and one end of resistor R223. The other end of resistor R222 is grounded. The other end of resistor R223 is connected to one end of capacitor C212 and the gate (pin G of NMOS transistor) of the first power supply control switch device M9. The other end of capacitor C212 is grounded. The source (pin S of NMOS transistor) of the first power supply control switch device M9 is grounded. The drain (pin D of NMOS transistor) of the first power supply control switch device M9 is connected to one end of resistor R224 and the gate (pin G of PMOS transistor) of the second power supply control switch device M10. The source of device M10 (PMOS pin S) is connected to the other end of resistor R224 and then connected to an external DC power supply. The drain of the second power supply control switch device M10 (PMOS pin D) is connected to one end of capacitor C213, one end of resistor R225, and one end of resistor R226. The other end of resistor R226 is connected to the gate of power supply switch device M8 (NMOS pin G). The drain of power supply switch device M8 (i.e., NMOS pin D) serves as the first port of load switch unit 18 and is connected to energy storage unit 14. The source of power supply switch device M8 (i.e., NMOS pin S) serves as the load. The second port of the switching unit 18 is used to connect an external load VLOAD. When the voltage of the energy storage unit 14 detected by the detection unit 16 is greater than the preset voltage threshold, the output of the detection unit 16 releases a high-level signal to the capacitor C212 through the resistor R223, causing the capacitor C212 to charge. When the energy stored in the capacitor C212 reaches the power supply voltage threshold, the capacitor C212 outputs a high-level signal to the gate of the first power supply control switching device M9. Since the first power supply control switching device M9 is an NMOS transistor, it turns on when its gate receives a high-level signal. At this time, the gate of the second power supply control switching device M10... With the drain and source of the first power supply control switch M9 grounded, the gate of the second power supply control switch M10 receives a low-level signal. Since the second power supply control switch M10 is a PMOS transistor, it turns on when its gate receives a low-level signal. At this time, the DC power supply VCC in the load switch unit 18 outputs a high-level signal to the gate of the power supply switch M8 through resistor R226. Since the power supply switch M8 is an NMOS transistor, it turns on when its gate receives a high-level signal. At this time, the energy storage unit 14 can directly provide power to the load through the power supply switch M8.In the load switch unit 18, a power supply delay component is formed by resistor R223 and capacitor C212. When the voltage of the energy storage unit 14 detected by the detection unit 16 is greater than the preset voltage threshold, the detection unit 16 outputs a high-level signal to capacitor C212 to charge capacitor C212. Only when the energy stored in capacitor C212 reaches the power supply voltage threshold will capacitor C212 output a high-level signal to trigger the power supply switch device M8 to conduct, so that the energy storage unit 14 can provide power to the load through the power supply switch device M8. The resistor R223 and capacitor C212 in the power supply delay component satisfy the following relationship: ;in, Here is the resistance value of resistor R223 in the power supply delay component. The capacitance value of capacitor C212 in the power supply delay component. The resistance value of resistor R201 in the slow charging unit 12 is... The resistance value of resistor R202 in the slow charging unit 12 is... The resistance value of resistor R203 in the slow charging unit 12. The capacitance value of capacitor C203 in energy storage unit 14 is given. The time constant corresponding to the power supply delay component can be solved based on the resistance value of resistor R223 and the capacitance value of capacitor C212. The time constant corresponding to the slow charging process can be calculated based on the resistance value of resistor in slow charging unit 12 and the capacitance value of a certain capacitor in energy storage unit 14. The time constant corresponding to the power supply delay component and the time constant corresponding to the slow charging process satisfy the above relationship, ensuring that energy storage unit 14 can only connect to the load to supply power to the load after slow charging is completed. This ensures that the voltage stored in energy storage unit 14 meets the requirements for powering large loads and avoids the situation where energy storage unit 14 can only supply power to small loads due to incomplete energy storage. Among them, resistors R222, R224, R225, R226 and capacitor C213 together play the roles of voltage stabilization, current limiting, clamping and filtering.

[0023] In one embodiment, as shown in FIG3, the discharge energy storage system provided in this embodiment further includes: a detection control unit 21, the detection unit 16 including: a voltage comparator U1; the non-inverting input terminal of the voltage comparator U1 is connected to the energy storage component 102, the inverting input terminal of the voltage comparator is connected to the output terminal of the detection control unit 21, the output terminal of the voltage comparator U1 is connected to the control terminal of the fast charging switch unit 17 and the control terminal of the slow charging switch device, and the control terminal of the detection control unit 21 is connected to the enable control unit 15; the enable control unit 15 is used to output a high-level signal to the control terminal of the detection control unit 21 when a signal to stop discharging is received, so that the output terminal of the detection control unit 21 outputs a low-level signal to the voltage comparator. The inverting input terminal of U1; voltage comparator U1 is used to trigger the first and second ports of fast charging switch unit 17 to conduct when the voltage of energy storage component 102 detected at the non-inverting input terminal is greater than the low-level signal received at the inverting input terminal; as shown in Figure 2, the detection control unit 21 includes a detection switch device M13 (a PMOS transistor); the non-inverting input terminal of voltage comparator U1 is connected to energy storage unit 14, the inverting input terminal of voltage comparator U1 is connected to the output terminal of detection control unit 21 (the drain of detection switch device M13), the output terminal of voltage comparator is connected to the control terminal of fast charging switch unit 17 and the control terminal of slow charging switch unit 13, and the control terminal of detection control unit 21 (detection switch device M13) is connected to the control terminal of fast charging switch unit 17 and the control terminal of slow charging switch unit 13. The gate of the detection switch device M13 is connected to the enable control unit 15, and the source of the detection switch device M13 is used to connect to an external DC power supply. The enable control unit 15 outputs a low-level signal to the gate of the detection switch device M13 when it receives a signal to stop charging. Since the detection switch device M13 is a PMOS transistor, it turns on when its gate receives a low-level signal. At this time, the DC power supply VCC in the detection control unit 21 outputs a high-level signal to the inverting input of the voltage comparator U1 through the detection switch device M13. After the inverting input of the voltage comparator U1 receives the high-level signal, the voltage of the energy storage unit 14 detected by the non-inverting input of the voltage comparator U1 can no longer be greater than the high-level signal at the inverting input. The output of voltage comparator U1 outputs a low-level signal to the gate of the first fast-charging control switch M6 to trigger the fast-charging switch M5 to open, so that the power supply VIN connected to the power supply input interface 11 can no longer charge the energy storage unit 14 through the fast-charging switch M5; as shown in Figure 2, the detection control unit 21 also includes: resistor R233 and capacitor C216; the detection unit 16 also includes: resistors R211, R212, R213, R214, R215, R216, R217, capacitors C206, C207, C208, C209, precision voltage regulator IC201, NPN transistor Q201, and diode D1;The gate (PMOS pin G) of the detection switch M13 is connected between resistor R210 and capacitor C205. The source (PMOS pin S) of the detection switch M13 is connected to an external DC power supply VCC. The drain (PMOS pin D) of the detection switch M13 is connected to one end of resistor R233, one end of capacitor C216, and the anode of diode D1. The other ends of resistor R233 and capacitor C216 are connected to ground. The cathode of diode D1 is connected to one end of resistor R211 and the inverting input of voltage comparator U1. Pin 2) is connected as follows: the other end of resistor R211 is connected to one end of resistor R212, one end of capacitor C206, pins 1 and 2 of precision voltage regulator IC201, and one end of resistor R213. The other end of resistor R212, the other end of capacitor C206, and pin 3 of precision voltage regulator IC201 are connected to ground. The other end of resistor R213 is used to connect to the external DC power supply VCC. One end of resistor R214 is connected to the anode of capacitor C203 and one end of capacitor C204. The other end of resistor R214 is connected to one end of resistor R215, one end of capacitor C207, and one end of resistor R214. One end of R216 is connected, the other end of resistor R215 is connected to the other end of capacitor C207 and then grounded, the other end of resistor R216 is connected to the non-inverting input terminal (pin 3 of voltage comparator U1); the power output terminal (pin 4 of voltage comparator U1) is grounded, the power input terminal (pin 8 of voltage comparator U1) is connected to the DC power supply VCC, one end of capacitor C208, one end of capacitor C209, one end of resistor R217, and the collector of NPN transistor Q201 (the collector of NPN transistor Q201). Pin C) is connected, the other end of capacitor C208 is connected to the other end of capacitor C209 and then grounded, the other end of resistor R217 is connected to the output terminal of voltage comparator U1 (pin 1 of voltage comparator U1), pin 1 of voltage comparator is connected to the base of NPN transistor Q201 (pin B of NPN transistor Q201), and the emitter of NPN transistor Q201 (pin E of NPN transistor Q201) is connected to resistor R208 in slow charging switch unit 13, resistor R218 in fast charging switch unit 17, and resistor R223 in load switch unit 18;The power input terminal of voltage comparator U1 is externally connected to DC power supply VCC to provide operating voltage for voltage comparator U1, enabling continuous operation of the voltage comparator. When the enable control unit 15 receives the start charging signal, it outputs a high-level signal to the gate of detection switch device M13 through resistors R209 and R210. Since the detection switch device M13 is a PMOS transistor, it is turned off when the gate receives a high-level signal. At this time, the reference voltage of the inverting input terminal of voltage comparator U1 is obtained by the voltage regulation of precision voltage regulator IC201. The non-inverting input terminal of voltage comparator U1 samples the voltage stored in energy storage unit 14 in real time. When the output terminal of voltage comparator U1 outputs a high-level signal, the voltage stored in energy storage unit 14 detected by its non-inverting input terminal satisfies the following relationship: ;in, The voltage stored in energy storage unit 14 is detected at the non-inverting input terminal. This is the resistance value of resistor R215. The resistance value of resistor R214 is... The reference voltage (which can be regulated to 2.5V) is the voltage after being regulated by the precision voltage regulator IC201 at the inverting input terminal. When the voltage stored in the energy storage unit 14 detected at the non-inverting input terminal satisfies the above relationship, the output terminal of the voltage comparator U1 outputs a high-level signal to the base of the NPN transistor Q201. When the NPN transistor Q201 receives a high-level signal at its base, it turns on. At this time, the DC power supply connected to the collector of the NPN transistor Q201 emits a high-level signal through the emitter of the NPN transistor Q201 to the gate of the second slow-charge control switch device M3 in the slow-charge switch unit 13, the gate of the first fast-charge control switch device M6 in the fast-charge switch unit 17, and the load switch unit 18. The input terminal of the power supply delay component; when the gate of the second slow-charge control switch device M3 receives a high-level signal from the emitter of the NPN transistor Q201, it triggers the slow-charge switch device M1 to turn off, so that the power supply input interface 11 no longer charges the energy storage unit 14 through the slow-charge unit 12 and the slow-charge switch unit 13; when the gate of the first fast-charge control switch device M6 receives a high-level signal from the emitter of the NPN transistor Q201, it triggers the fast-charge switch device M5 to turn on, so that the power supply input interface 11 charges the energy storage unit 14 through the fast-charge switch unit; when the input terminal of the power supply delay component receives a high-level signal from the emitter of the NPN transistor Q201, the power supply... The delay component begins energy storage. When the stored energy reaches the supply voltage threshold, the power supply delay component outputs a high-level signal to the gate of the first power supply control switch M9 to trigger the power supply switch M8 to turn on, enabling the energy storage unit 14 to supply power to the load. When the enable control unit 15 receives the signal to stop charging and start discharging, it outputs a low-level signal to the gate of the detection switch M13 through resistors R209 and R210. Since the detection switch M13 is a PMOS transistor, it turns on when its gate receives the low-level signal. At this time, the DC power supply VCC connected to the source of the detection switch M13 outputs a reference voltage to the inverting input of the voltage comparator U1. When the DC power supply... When VCC is used as the reference voltage for the inverting input of voltage comparator U1, the voltage value of energy storage unit 14 detected by the non-inverting input of voltage comparator U1 cannot be greater than the reference voltage for the inverting input of voltage comparator U1. Therefore, the output of voltage comparator U1 continuously outputs a low-level signal to the base of NPN transistor Q201. When NPN transistor Q201 receives a low-level signal at its base, it is turned off. The emitter of NPN transistor Q201 sends a low-level signal to the gate of the second slow-charge control switch device M3 in slow-charge switch unit 13, the gate of the first fast-charge control switch device M6 in fast-charge switch unit 17, and the input of the power supply delay component in load switch unit 18.When the gate of the second slow-charge control switch M3 receives a low-level signal from the emitter of the NPN transistor Q201, the second slow-charge control switch M3 is turned off. At this time, the gate of the first slow-charge control switch M2 receives a low-level signal from the enable control unit 15, causing the slow-charge switch M1 to be in the off state, so that the power supply input interface 11 no longer charges the energy storage unit 14 through the slow-charge unit 12 and the slow-charge switch unit 13. When the gate of the first fast-charge control switch M6 receives a low-level signal from the emitter of the NPN transistor Q201, the fast-charge switch M5 is turned off, so that the power supply input interface 11 stops charging the energy storage unit through the fast-charge switch unit. Unit 14 is charged; when the power supply delay component receives a low-level signal from the emitter of NPN transistor Q201 at its input terminal, the power supply delay component outputs a low-level signal to the gate of the first power supply control switch M9, causing the power supply switch M8 to be in the off state, and the energy storage unit 14 stops supplying power to the load; wherein, resistor R233, capacitor C216, resistor R211, resistor R212, resistor R213, resistor R214, resistor R215, resistor R216, resistor R217, capacitor C206, capacitor C207, capacitor C208, capacitor C209, precision voltage regulator IC201, and diode D1 together play the roles of voltage regulation, current limiting, clamping, and reverse connection protection.

[0024] In one embodiment, as shown in FIG3, the discharge energy storage system provided in this embodiment further includes: an anti-charging lock-up unit 22; the first port of the anti-charging lock-up unit 22 is connected to the power supply input interface 11, the second port of the anti-charging lock-up unit 22 is connected to the input terminal of the slow charge current limiting component, the control terminal of the anti-charging lock-up unit 22 is used to connect an external DC power supply, and the anti-charging lock-up unit 22 is in a conducting state; when the enable control unit 15 receives a signal to start charging, it controls the DC power supply to charge the anti-charging lock-up unit 22, and when the energy stored in the anti-charging lock-up unit 22 reaches the anti-lock-up voltage... When the threshold is reached, the first port and the second port of the anti-charging lock-up unit 22 are disconnected to stop the power supply input interface 11 from supplying power to the energy storage component 102 through the slow-charge current limiting component and the slow-charge switching device. As shown in Figure 2, the anti-charging lock-up unit 22 includes: an anti-lock-up switching device M14 (a PMOS transistor) and an anti-lock-up delay component; the first port of the anti-charging lock-up unit 22 (i.e., the source of the anti-lock-up switching device M14) is connected to the power supply input interface 11, and the second port of the anti-charging lock-up unit 22 (i.e., the drain of the anti-lock-up switching device M14) is connected to the power supply input interface 102. The input terminal (i.e., one end of resistor R201) is connected, and the control terminal of the anti-charging lock-up unit 22 (i.e., the gate of the anti-lock-up switch device M14) is connected to the output terminal of the anti-lock-up delay component. The input terminal of the anti-lock-up delay component is used to connect an external DC power supply VCC, and the anti-charging lock-up unit 22 is in the conducting state. When the enable control unit 15 receives the start charging signal, it controls the DC power supply VCC in the anti-charging lock-up unit 22 to charge the anti-lock-up delay component. When the energy stored in the anti-lock-up delay component reaches the anti-lock-up voltage threshold, the anti-lock-up delay component outputs a high-level signal to the anti-lock-up switch device M14. The gate of the switch device M14 is turned off. Since the anti-lock-up switch device M14 is a PMOS transistor, the anti-lock-up switch device M14 is turned off when the gate receives a high-level signal, so that the power supply VIN connected to the power supply input interface 11 cannot charge the energy storage unit 14 through the slow charging unit 12 and the slow charging switch unit 13. As shown in Figure 2, the anti-charging lock-up unit 22 also includes: diode D2, resistor R234, resistor R235, resistor R236, and capacitor C217 (a polarized capacitor). Among them, the anti-lock-up delay component is composed of resistor R234 and capacitor C217.The anode of diode D2 is used to connect to the external DC power supply VCC. The cathode of diode D2 is connected to one end of resistor R234. The other end of resistor R234 is connected to one end of resistor R235, one end of resistor R236, and the anode of capacitor C217. The other end of resistor R235 is connected to the cathode of capacitor C217 and then grounded. The other end of resistor R236 is connected to the gate (PMOS pin G) of anti-lock-up switch M14. The source (PMOS pin S) of anti-lock-up switch M14 is connected to the power input interface 11. The drain (PMOS pin D) of anti-lock-up switch M14 is connected to the energy storage unit 14 (the anode of polarized capacitor C203 and one end of capacitor C204). When the enable control unit 15 receives the signal to start charging, it controls the DC power supply VCC (which can be set to 60V) in the anti-charge lock-up unit 22 to... Resistor R234 charges capacitor C217. Only when the energy stored in capacitor C217 reaches the anti-lock-up voltage threshold (which can be set to 48V) will capacitor C217 output a high-level signal to the gate of anti-lock-up switch device M14. Since anti-lock-up switch device M14 is a PMOS transistor, it disconnects when it receives a high-level signal at its gate, thus preventing the power supply VIN connected to power input interface 11 from charging energy storage unit 14 through slow charging unit 12 and slow charging switch unit 13. This avoids the fault of the discharge energy storage system continuously charging energy storage unit 14 through slow charging unit 12 and slow charging switch unit 13, and effectively prevents the problem of repeated slow charging caused by connecting the load, which causes the resistor in the buffer unit to work continuously and generate heat and loss. In addition, the resistor R234 and capacitor C217 in the anti-lock-up delay component satisfy the following relationship: ;in, To prevent the resistor R234 in the delay component from locking up, The capacitance value of capacitor C217 in the anti-lock-up delay component is determined. Based on the resistance value of resistor R234 and the capacitance value of capacitor C217, the time constant corresponding to the anti-lock-up delay component can be calculated. The time constant corresponding to the anti-lock-up delay component, the time constant corresponding to the power supply delay component, and the time constant corresponding to the slow charging process satisfy the above relationship, ensuring that the energy storage unit 14 can only connect to the load to supply power after the slow charging is completely completed. This ensures that the voltage stored in the energy storage unit 14 meets the requirements for powering a large load and avoids the situation where the energy storage unit 14 can only supply power to a small load due to incomplete energy storage. Among them, diode D2, resistor R235, and resistor R236 together play the roles of current limiting, clamping, and reverse connection prevention.

[0025] In one embodiment, as shown in FIG3, the discharge energy storage system provided in this embodiment further includes: an auxiliary unit 23; the auxiliary unit 23 is connected to the power supply input interface 11, and the auxiliary unit 23 is used to store voltage when the energy storage component 102 is charging; as shown in FIG2, the auxiliary unit 23 includes: a step-down voltage regulator U2, diodes D3, D4, and D5, a fuse F1, capacitors C218, C219 (a polarized capacitor), C220, C221, C222 (a polarized capacitor), C223, C224 (a polarized capacitor), C225, resistors R237 and R238, and an inductor L1; the anode of diode D3 is connected to... Energy storage unit 14 is connected. The anode of diode D4 is connected to power input interface 11. The cathodes of diodes D3 and D4 are connected to one end of capacitor C218, the anode of capacitor C219, and one end of fuse F1. The other end of fuse F1 is connected to one end of capacitor C220 and the voltage input terminal (pin 1 of buck regulator U2). One end of capacitor C218 is connected to the cathode of capacitor C219, and the other end of capacitor C220 is connected to ground. Pins 3, 5, and 6 of buck regulator U2 are connected to ground. The feedback terminal (pin 4 of buck regulator U2) is connected to one end of resistor R237 and one end of resistor R238. One end of capacitor C221 is connected, and the other end of resistor R237 is grounded. The voltage output terminal of buck regulator U2 (pin 2 of buck regulator U2) is connected to the cathode of diode D5 and one end of inductor L1. The other end of inductor L1 is connected to the anode of capacitor C222, one end of capacitor C223, the anode of capacitor C224, one end of capacitor C225, and DC power supply VCC. The cathode of capacitor C222 is connected to the other end of capacitor C223, the cathode of capacitor C224, the other end of capacitor C225, and the anode of diode D5 and then grounded. During the energy storage process of energy storage component 102 (i.e., energy storage unit 14), energy storage unit 14 supplies energy to buck regulator U2 via diode D3. The voltage input terminal of the buck regulator U2 is supplied with voltage. The power supply VIN connected to the power supply input interface 11 supplies voltage to the voltage input terminal of the buck regulator U2 through diode D4. The higher voltage provided by the power supply VIN and the energy storage unit 14 is processed by the buck regulator U2 and outputs a stable low voltage to capacitors C222, C223, C224 and C225 for energy storage. During the buck regulation process, the feedback terminal of the buck regulator U2 collects the output voltage of the voltage output terminal in real time. When the feedback terminal detects that the output voltage deviates from the set value, the error amplifier in the buck regulator U2 automatically adjusts the pulse width modulation (PWM) signal to restore the output voltage to a stable value.

[0026] In one embodiment, as shown in FIG3, the discharge energy storage system provided in this embodiment further includes: a protection unit 24; the input terminal of the protection unit 24 is connected to the power supply input interface 11, and the output terminal of the protection unit 24 is connected to the input terminal of the slow charge current limiting component; as shown in FIG2, the protection unit 24 includes: a varistor R239 and a fuse F2; one end of the fuse F2 serves as the input terminal of the protection unit 24 and is connected to the power supply input interface 11, and the other end of the fuse F2 and one end of the varistor R239 serve as the output terminal of the protection unit 24 and are connected to the input terminal (i.e., one end of the resistor R201) of the slow charge current limiting component (i.e., the slow charge unit 12); the other end of the varistor R239 is grounded; the fuse F2 is used to blow when the current in the power supply line is too large, and when the voltage in the circuit is too large, the varistor R239 clamps the voltage through surge suppression. The fuse F2 and the varistor R239 together provide voltage and current protection for the energy storage circuit.

[0027] In one embodiment, as shown in Figure 3, the discharge energy storage system provided in this embodiment further includes: a filter unit 25; the input terminal of the filter unit 25 is connected to the power supply input interface 11, the output terminal of the filter unit 25 is connected to the input terminal of the slow charge current limiting component, and the filter unit 25 is connected in parallel with the protection unit 24; as shown in Figure 2, the filter unit 25 includes: a filter capacitor C227; one end of the filter capacitor C227 serves as the input terminal of the filter unit 25 and is connected to the power supply input interface 11 and one end of the fuse F2, and the other end of the filter capacitor C227 serves as the output terminal of the filter unit 25 and is connected to the other end of the varistor R239 and then grounded, thereby filtering the current in the circuit through the filter capacitor C227.

[0028] In one embodiment, as shown in Figure 3, the discharge energy storage system provided in this embodiment further includes: a reverse connection protection unit 26; the input terminal of the reverse connection protection unit 26 is connected to the power supply input 11 interface, and the output terminal of the reverse connection protection unit 26 is connected to the input terminal of the slow charge current limiting component; the reverse connection protection unit 26 is used to conduct when the power supply input interface 11 is connected to the external power supply in the positive direction, and to disconnect when the power supply input interface 11 is connected to the external power supply in the reverse direction; as shown in Figure 2, the reverse connection protection unit 26 includes: a reverse connection protection switching device M15 (a PMOS transistor) and a capacitor C228; the input terminal of the reverse connection protection unit 26 (i.e., the source of the reverse connection protection switching device M15) is connected to the power supply input interface 11 and one end of the capacitor C228, the output terminal of the reverse connection protection unit 26 (i.e., the drain of the reverse connection protection switching device M15) is connected to the source of the anti-lock-up switching device M14, and the control terminal of the reverse connection protection unit 26 (i.e., the gate of the reverse connection protection switching device M15) is connected to the other end of the capacitor C228. Since the reverse connection protection switch M15 is a PMOS transistor and its gate is grounded, it is in a low-level state. Therefore, it will only conduct when the source voltage of the reverse connection protection switch M15 is greater than the drain voltage. When the power supply input interface 11 is connected to the positive terminal of the power supply VIN (i.e., the power supply input interface 11 is positively connected to the external power supply VIN), the source voltage of the reverse connection protection switch M15 is greater than the drain voltage, and the reverse connection protection switch M15 conducts. When the power supply input interface 11 is connected to the negative terminal of the power supply VIN (i.e., the power supply input interface 11 is reversely connected to the external power supply VIN), the source voltage of the reverse connection protection switch M15 is less than the drain voltage, and the reverse connection protection switch M15 is disconnected. The reverse connection protection unit 26 uses the reverse connection protection switch M15 (PMOS transistor) as a reverse power input protection device, which has the advantage of reducing power loss compared with the prior art of using diodes as reverse power input protection devices.

[0029] This invention provides a specific embodiment of the discharge energy storage system applied to a laser therapy device, as follows: When the discharge energy storage system needs to store energy, the enable control unit 15 outputs a high-level signal to the gate of the first slow-charge control switch device M2 in the slow-charge switch unit 13, the gate of the discharge control device M12 in the discharge switch unit 20, and the gate of the detection switch device M13 in the detection control unit 21; when the gate of the first slow-charge control switch device M2 receives the high-level signal, it triggers the slow-charge switch device M1 to conduct, and the power supply input interface 11 first passes through the slow-charge unit 12 and the slow-charge switch... Unit 13 performs slow charging for the energy storage component (i.e., energy storage unit 14); when the gate of the discharge controller M12 receives a high-level signal, it controls the discharge switch M11 to remain open to prevent the energy storage unit 14 from discharging; the detection switch M13 is turned off when its gate receives a high-level signal, and the voltage regulated by the precision voltage regulator IC201 (2.5V) is used as the reference voltage for the inverting input of the voltage comparator U1; the non-inverting input of the voltage comparator U1 detects the voltage stored in the energy storage unit 14 in real time, and when the voltage stored in the energy storage unit 14 is greater than a preset voltage threshold, the voltage comparator... The output terminal of U1 outputs a high-level signal to the base of NPN transistor Q201, turning on the NPN transistor Q201. The emitter of the NPN transistor Q201 outputs a high-level signal to capacitor C212 in the load switch unit 18, the gate of the first fast-charging control switch M6 in the fast-charging switch unit, and the gate of the second slow-charging control switch M3. When the gate of the second slow-charging control switch M3 receives a high-level signal, it triggers the slow-charging switch M1 to turn off, stopping the power input interface 11 from slow-charging the energy storage unit 14 through the slow-charging unit 12 and the slow-charging switch unit 13. The first fast-charging control switch... When the gate of the switching device M6 receives a high-level signal, it triggers the fast-charging switching device M5 to turn on. At this time, the power supply input interface 11 charges the energy storage unit 14 through the fast-charging switching unit 17, completing the switch from slow charging to fast charging. When the capacitor C212 in the load switching unit 18 receives a high-level signal, it stores energy. When the capacitor C212 stores energy to the power supply voltage threshold, the capacitor C212 outputs a high-level signal to the gate of the first power supply control switching device M9 to trigger the power supply switching device M8 to turn on. The energy storage unit 14 supplies power to the external load through the load switching unit 18, ensuring that the energy storage unit 14 can drive a large load.The discharge energy storage system provided in this embodiment of the invention also includes an anti-charging lock-up unit 22 between the power supply input interface 11 and the slow charging unit 12. When the power supply input interface 11 begins slow charging of the energy storage unit 14, the DC power supply connected to the discharge lock-up unit begins to output a high-level signal to the capacitor C217. Upon receiving the high-level signal, the capacitor C217 begins to store energy. When the stored energy in the capacitor C217 reaches the anti-lock-up voltage threshold, it outputs a high-level signal to the gate of the anti-lock-up switch device M14 to trigger the anti-lock-up switch device M14 to turn off, thus preventing the energy storage unit from being locked due to circuit failure. 14. During slow charging: When the energy storage system needs to discharge, the enable control unit 15 outputs a low-level signal to the gate of the first slow charging control switch device M2 in the slow charging switch unit 13, the gate of the discharge control device M12 in the discharge switch unit 20, and the gate of the detection switch device M13 in the detection control unit 21; when the gate of the first slow charging control switch device M2 receives the low-level signal, it triggers the slow charging switch device M1 to open, and the power supply input interface 11 stops slow charging the energy storage unit 14 through the slow charging unit 12 and the slow charging switch unit 13; the discharge control device M12... When the gate receives a low-level signal, it triggers the discharge switch device M11 to turn on, and the energy storage unit 14 discharges through the slow discharge unit 19 and the discharge switch unit 20. When the gate receives a high-level signal, the detection switch device M13 turns on, and at this time, the DC power supply VCC serves as the reference voltage for the inverting input of the voltage comparator U1. The voltage stored in the energy storage unit 14, which is detected in real time at the non-inverting input of the voltage comparator U1, cannot exceed the voltage value of the DC power supply VCC. The output of the voltage comparator U1 outputs a low-level signal to the base of the NPN transistor Q201, and the NPN transistor Q201 is cut off. When the NPN transistor Q201 receives a low-level signal, the emitter outputs a low-level signal to capacitor C212 in the load switch unit 18 and the gate of the first fast-charging control switch M6 in the fast-charging switch unit. Upon receiving the low-level signal, the gate of the first fast-charging control switch M6 controls the fast-charging switch M5 to open, at which point the power input interface 11 stops charging the energy storage unit 14 through the fast-charging switch unit 17. When the gate of the first power supply control switch M9 in the load switch unit 18 receives a low-level signal, it triggers the power supply switch M8 to turn off, and the energy storage unit 14 stops supplying power to the external load.

[0030] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or apparatus referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "installation" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two devices. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A discharge energy storage system for use in a laser therapy device, characterized in that, include: The system comprises an energy storage component, an enable control unit, a discharge control device, a discharge switch device, and a discharge current limiting component. The enable control unit is connected to the control terminal of the discharge control device. The first port of the discharge control device is connected to an external DC power supply. The second port of the discharge control device is connected to the control terminal of the discharge switch device. The control terminal of the discharge switch device is connected to the first port of the discharge switch device, which is grounded. The second port of the discharge switch device is connected to the output terminal of the discharge current limiting component. The input terminal of the discharge current limiting component is connected to the energy storage component. The enable control unit outputs a low-level signal to the control terminal of the discharge control device upon receiving a discharge start signal, controlling the discharge control device to be in an off state. This causes the control terminal of the discharge switch device to receive a low-level signal, triggering the discharge switch device to conduct, thereby allowing the energy storage component to release electrical energy to the discharge switch device through the discharge current limiting component.

2. The discharge energy storage system according to claim 1, characterized in that, Also includes: The system comprises a power input interface, a slow-charge current limiting component, and a slow-charge switch. The power input interface is connected to the input terminal of the slow-charge current limiting component. The output terminal of the slow-charge current limiting component is connected to the first port of the slow-charge switch. The second port of the slow-charge switch is connected to the energy storage component. The control terminal of the slow-charge switch is connected to the enable control unit. The enable control unit outputs a high-level signal to the control terminal of the discharge control device when it receives a stop-discharge signal, controlling the discharge control device to be in a conducting state. This causes the control terminal of the discharge switch to receive a high-level signal, triggering the discharge switch to open, so that the energy storage component stops releasing energy to the discharge switch through the discharge current limiting component. The enable control unit also outputs a high-level signal to the control terminal of the slow-charge switch when it receives a stop-discharge signal, controlling the first and second ports of the slow-charge switch to be connected, so that the power input interface stores energy to the energy storage component through the slow-charge switch and the slow-charge current limiting component.

3. The discharge energy storage system according to claim 2, characterized in that, Also includes: Detection unit and fast charging switch unit; The input terminal of the detection unit is connected to the energy storage component, and the output terminal of the detection unit is connected to the control terminal of the fast charging switch unit and the control terminal of the slow charging switch device. The detection unit is used to detect the voltage of the energy storage component. The first port of the fast charging switch unit is connected to the power supply input interface, and the second port of the fast charging switch unit is connected to the energy storage component. The fast charging switch unit is in an open state. When the voltage of the energy storage component exceeds a preset voltage threshold, the detection unit is used to trigger the first and second ports of the slow charging switch device to return to an open state and to trigger the first and second ports of the fast charging switch unit to conduct, so that the power supply input interface charges the energy storage component through the fast charging switch unit.

4. The discharge energy storage system according to claim 3, characterized in that, Also includes: Load switching unit; The control terminal of the load switch unit is connected to the output terminal of the detection unit. The first port of the load switch unit is connected to the energy storage component, and the second port of the load switch unit is used to connect an external load. The load switch unit is in an open state. The detection unit is used to charge the load switch unit when it detects that the voltage of the energy storage component is greater than a preset voltage threshold. When the energy stored in the load switch unit reaches the power supply voltage threshold, it triggers the first port and the second port of the load switch unit to conduct, so that the energy storage component supplies power to the load through the load switch unit.

5. The discharge energy storage system according to claim 3, characterized in that, Also includes: The detection control unit includes a voltage comparator. The non-inverting input of the voltage comparator is connected to the energy storage component, the inverting input of the voltage comparator is connected to the output of the detection control unit, the output of the voltage comparator is connected to the control terminal of the fast charging switch unit and the control terminal of the slow charging switch device, and the control terminal of the detection control unit is connected to the enable control unit. The enable control unit is used to output a high-level signal to the control terminal of the detection control unit when it receives a signal to stop discharging, so that the output terminal of the detection control unit outputs a low-level signal to the inverting input of the voltage comparator. The voltage comparator is used to trigger the first port and the second port of the fast charging switch unit to conduct when the voltage of the energy storage component detected at the non-inverting input is greater than the low-level signal received at the inverting input.

6. The discharge energy storage system according to claim 2, characterized in that, Also includes: An anti-charging lock-up unit is provided; the first port of the anti-charging lock-up unit is connected to the power supply input interface, the second port of the anti-charging lock-up unit is connected to the input terminal of the slow-charge current limiting component, the control terminal of the anti-charging lock-up unit is used to connect an external DC power supply, and the anti-charging lock-up unit is in a conducting state; when the enable control unit receives a signal to start charging, it controls the DC power supply to charge the anti-charging lock-up unit; when the energy stored in the anti-charging lock-up unit reaches the anti-lock-up voltage threshold, it triggers the first port and the second port of the anti-charging lock-up unit to disconnect, so as to stop the power supply input interface from supplying power to the energy storage component through the slow-charge current limiting component and the slow-charge switching device.

7. The discharge energy storage system according to claim 2, characterized in that, Also includes: Auxiliary unit; The auxiliary unit is connected to the power input interface and is used to store voltage when the energy storage component is charging.

8. The discharge energy storage system according to claim 2, characterized in that, Also includes: Protection unit; The input terminal of the protection unit is connected to the power supply input interface, and the output terminal of the protection unit is connected to the input terminal of the slow-charge current limiting component.

9. The discharge energy storage system according to claim 8, characterized in that, Also includes: Filtering unit; The input terminal of the filtering unit is connected to the power supply input interface, the output terminal of the filtering unit is connected to the input terminal of the current limiting component, and the filtering unit is connected in parallel with the protection unit.

10. The discharge energy storage system according to claim 2, characterized in that, Also includes: Reverse connection protection unit; the input terminal of the reverse connection protection unit is connected to the power supply input interface, and the output terminal of the reverse connection protection unit is connected to the input terminal of the slow charging current limiting component; the reverse connection protection unit is used to conduct when the power supply input interface is connected to the external power supply in the positive direction, and to disconnect when the power supply input interface is connected to the external power supply in the reverse direction.

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