An activation control circuit and energy storage power supply thereof

Abstract

This utility model discloses an activation control circuit and its energy storage power supply. The activation control circuit includes a delay drive module, a switch module, an auxiliary power supply module, and a control module. The delay drive module responds to the battery voltage and outputs a drive signal when the battery is connected, and stops outputting the drive signal after a preset delay time. The switch module conducts when it receives the drive signal and / or the first activation signal, allowing the battery voltage to be transmitted to the auxiliary power supply module. After receiving the battery voltage, the auxiliary power supply module outputs an auxiliary voltage to the control module, causing the control module to output the first activation signal. This utility model embodiment achieves automatic activation of the battery-powered system by automatically driving the switch module in response to battery connection via the delay drive module, eliminating the need for manual operation and improving ease of use. The delay drive module stops driving after a preset time, and the control module takes over the power transmission control, avoiding the ineffective power consumption caused by prolonged activation of the battery-powered system.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to an activation control circuit and its energy storage power supply. Background Technology

[0002] With the widespread application of electronic devices, various battery-powered systems have been extensively used in portable devices, energy storage systems, and automotive electronic devices. Battery-powered systems typically require activated control circuitry to manage the system's startup and operational status.

[0003] The most common activation method in existing technologies is to start the system via a physical button or switch. After the battery is connected to the system, the user needs to manually press the start button to activate it. This manual activation solution is simple in structure and low in cost, but it requires manual intervention, which is inconvenient in applications such as remote devices and unattended equipment. While some systems use external control signals to trigger system startup, such as communication signals or sensor signals, enabling a certain degree of remote control, they still rely on a specific external signal source, making the triggering method relatively simple, and the system cannot start normally if the signal source fails.

[0004] Another common approach is a normally-on activation scheme that starts immediately upon battery connection. While this avoids the inconvenience of manual operation, it suffers from a serious problem of excessive standby power consumption. Even when the system is not in use, the circuit continues to drain the battery, significantly shortening battery life, especially in applications with long standby times. Utility Model Content

[0005] The main technical problem solved by this utility model embodiment is to provide an activation control circuit and its energy storage power supply, which can solve at least some of the defects of the existing battery power supply system.

[0006] In a first aspect, this utility model provides an activation control circuit, comprising: a delay drive module, a switch module, a control module, and an auxiliary power supply module; the delay drive module is connected to the switch module, the switch module is connected to the control module and the auxiliary power supply module, and the auxiliary power supply module is also connected to the control module; the delay drive module is used to output a drive signal in response to the battery voltage when a battery is connected; and to stop outputting the drive signal after a preset delay time under the action of the battery voltage; the switch module is used to turn on when receiving the drive signal and / or a first activation signal, so that the battery voltage is transmitted to the auxiliary power supply module; the auxiliary power supply module is used to output an auxiliary voltage to the control module when receiving the battery voltage, so that the control module outputs the first activation signal; wherein the preset delay time is greater than the time required for the control module to output the first activation signal when receiving the auxiliary voltage.

[0007] Optionally, the switching module includes a first switching unit and a second switching unit. A first input terminal of the first switching unit is connected to the output terminal of the delay drive module. A second input terminal of the first switching unit is connected to the output terminal of the control module. A third input terminal of the first switching unit is connected to the output terminal of an external device. The output terminal of the first switching unit is connected to the signal input terminal of the second switching unit. The output terminal of the second switching transistor is connected to the input terminal of the auxiliary power module. The first switching unit is configured to conduct upon receiving the drive signal and / or the first activation signal, thereby outputting a switching signal to the second switching unit. The power input terminal of the second switching unit is connected to the battery. The second switching unit is configured to conduct upon receiving the switching signal, thereby transmitting the battery voltage to the auxiliary power module.

[0008] Optionally, the first switching unit includes resistors R6 and R7, a Schottky diode D1, a Schottky diode D2, and a switching transistor Q2; the first end of resistor R6 is connected to the output terminal of the delay drive module, the second end of resistor R6 and the first end of resistor R7 are connected to the base of the switching transistor Q2, the collector of the switching transistor Q2 is connected to the signal input terminal of the second switching unit, and the emitter of the switching transistor Q2 is connected to the negative terminal of the battery.

[0009] Optionally, the first switching unit further includes resistors R1 and R2, a Schottky diode D1, and a Schottky diode D2; the first end of resistor R1 is used to connect to an external device, the second end of resistor R1 is connected to the anode of the Schottky diode D1, the first end of resistor R2 is connected to the output terminal of the control module, the second end of resistor R2 is connected to the anode of the Schottky diode D2, and the cathodes of both the Schottky diode D1 and the Schottky diode D2 are connected to the first end of resistor R6.

[0010] Optionally, the second switching unit includes a resistor R8, a Zener diode D5, a diode D6, and a switching transistor Q3; the second end of the resistor R8 is connected to the output terminal of the first switching unit, the first end of the resistor R8 is connected to the anode of the Zener diode D5 and the gate of the switching transistor Q3, the source of the switching transistor Q3 is connected to the cathode of the Zener diode D5 and the positive terminal of the battery, the drain of the switching transistor Q3 is connected to the anode of the diode D6, and the cathode of the diode D6 is connected to the input terminal of the auxiliary power supply module.

[0011] Optionally, the delay drive module includes a capacitor unit and a drive unit, the drive unit, the capacitor unit, and the switch module are connected; when the battery is connected, the battery charges the capacitor unit until the capacitor voltage is greater than a preset voltage threshold, the capacitor unit outputs a conduction signal to the drive unit; wherein the time required for the capacitor unit to charge until the capacitor voltage is greater than the preset voltage threshold is the preset delay time; the input terminal of the drive unit is used to connect to the battery, and the drive unit is used to output the drive signal in response to the battery voltage when the battery is connected; and to stop outputting the drive signal in response to the conduction signal.

[0012] Optionally, the driving unit includes resistor R3, resistor R5, capacitor C2, Schottky diode D4, and switching transistor Q1; the first end of resistor R3 is connected to the positive terminal of the battery, the second end of resistor R3 is connected to the collector of switching transistor Q1 and the anode of Schottky diode D4, the cathode of Schottky diode D4 is connected to the first input terminal of the switching module, the base of switching transistor Q1 is connected to the first end of capacitor C2, the first end of resistor R5, and the output terminal of the capacitor unit, and the second end of resistor R5 is connected to the second end of capacitor C2, the collector of switching transistor Q1, and the negative terminal of the battery.

[0013] Optionally, the capacitor unit includes a resistor R4, a capacitor C1, and a Zener diode D3; the first end of the resistor R4 is connected to the positive terminal of the battery, the second end of the resistor R4 is connected to the first end of the capacitor C1 and the cathode of the Zener diode D3, the anode of the Zener diode D3 is connected to the signal input terminal of the driving unit, and the second end of the capacitor C1 is connected to the negative terminal of the battery.

[0014] Optionally, the switch module is also configured to connect to an external device and output the drive signal in response to a second activation signal input from the external device.

[0015] Secondly, the present invention provides an energy storage power supply, including: an activation control circuit as described in the first aspect.

[0016] The beneficial effects of this utility model embodiment are as follows: Unlike the prior art, this utility model embodiment responds to battery access through a delayed drive module, drives the switch module to transmit power voltage, and causes the control module to output a first activation signal to drive the switch module to maintain the transmission of power voltage, thereby realizing the automatic activation of the battery power supply system when the battery is connected, improving the ease of use of the battery power supply system; in addition, the delayed drive module stops driving the switch module after a preset delay time when the battery is connected, and the control module controls the transmission of power voltage to avoid the invalid power consumption caused by the battery power supply system being in an active state. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of an activation control circuit provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a delay drive module provided in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of a switch module provided in an embodiment of the present invention; Figure 4 This is a circuit diagram of an activation control circuit provided by an embodiment of the present invention. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0021] This application provides an activation control circuit, the schematic diagram of which is shown below. Figure 1 As shown, the activation control circuit includes a delay drive module 100, a switch module 200, an auxiliary power supply module 300, and a control module 400. Specifically, the delay drive module 100 is connected to the switch module 200, the switch module 200 is connected to the control module 400 and the auxiliary power supply module 300, and the auxiliary power supply module 300 is also connected to the control module 400.

[0022] In some embodiments of this application, the delay drive module 100 is used to output a drive signal in response to the battery voltage when the battery 20 is connected. Specifically, when the battery 20 is first connected to the activation control circuit 10, the battery voltage is sensed and responded to by the delay drive module 100 as a trigger condition. By way of example and not limitation, the delay drive module 100 may internally employ voltage detection and signal processing circuitry to implement the above functions, and when the battery voltage is detected, it immediately generates and outputs a drive signal to start the entire activation process.

[0023] In some embodiments of this application, the delay drive module 100 stops outputting the drive signal after a preset delay time under the influence of the battery voltage. Specifically, the delay drive module 100 integrates a delay control mechanism, which can control the preset delay time through time counting or charge accumulation. By way of example and not limitation, the delay drive module 100 can utilize the principle of an RC charging circuit to generate a delay effect through the charging process of a resistor and capacitor. When the charging time reaches the preset delay time, the output of the drive signal is automatically stopped to avoid the system being in an active state for a long time.

[0024] In some embodiments of this application, the switch module 200 is configured to turn on upon receiving a drive signal and / or a first activation signal, so that the battery voltage is transmitted to the auxiliary power module 300. Specifically, the switch module 200 has multi-input control capability, and can respond to both the drive signal from the delayed drive module 100 and the first activation signal from the control module 400. By way of example and not limitation, the switch module 200 may employ the control principle of a logic OR gate circuit, triggering the conduction state when any input signal is valid, thereby achieving flexible switching control.

[0025] In some embodiments of this application, the conduction mechanism of the switching module 200 ensures efficient transmission of battery voltage. It is easy to understand that when the switching module 200 receives a valid control signal, its internal switching devices switch from a cutoff state to a conduction state, establishing an electrical connection path from the battery 20 to the auxiliary power module 300. Specifically, the switching module 200 can control the on / off state of the power path using power switching devices. By way of example and not limitation, the switching module 200 can utilize the conduction characteristics of switching devices such as MOSFETs or transistors to achieve low-impedance conduction under the drive of a control signal, ensuring that the battery voltage can be efficiently transmitted to the subsequent circuitry.

[0026] In some embodiments of this application, the auxiliary power module 300 is used to output an auxiliary voltage to the control module 400 upon receiving battery voltage, so that the control module 400 outputs a first activation signal. Specifically, the auxiliary power module 300 receives the battery voltage transmitted from the switching module 200 and converts it into an auxiliary voltage suitable for the operation of the control module 400. By way of example and not limitation, the auxiliary power module 300 may employ DC-DC conversion technology to convert the battery voltage into a stable auxiliary voltage through a voltage regulation circuit, ensuring that the control module 400 can obtain a stable and reliable operating power supply. The auxiliary voltage output by the auxiliary power module 300 provides operating power to the control module 400, enabling the control module 400 to operate normally. Specifically, when the auxiliary power module 300 starts outputting the auxiliary voltage, the control module 400 obtains operating power and immediately starts working and outputs the first activation signal.

[0027] In some embodiments of this application, after receiving auxiliary voltage from auxiliary power module 300, control module 400 outputs a first activation signal back to switch module 200, forming a positive feedback control loop. Specifically, control module 400 may integrate a microprocessor or dedicated control chip, possessing signal processing and logic control capabilities. By way of example and not limitation, control module 400 may be controlled internally to immediately output the first activation signal upon detecting auxiliary voltage, ensuring that switch module 200 remains in the conducting state, thereby maintaining the normal operation of the entire system.

[0028] In some embodiments of this application, the preset delay time is greater than the time required for the control module 400 to output the first activation signal upon receiving the auxiliary voltage, thereby ensuring the reliability and continuity of the system activation process. Specifically, the preset delay time provided by the delay drive module 100 provides a sufficient time window for the start-up and stable operation of the control module 400. As an example and not a limitation, assuming that the control module 400 requires tens of milliseconds to start up from receiving the auxiliary voltage to outputting the first activation signal, the preset delay time can be designed to be hundreds of milliseconds, ensuring that the control module 400 has successfully output the first activation signal and taken over the control of the switch module 200 before the delay drive module 100 stops outputting the drive signal.

[0029] In some embodiments of this application, the structural schematic diagram of the delay driving module 100 is as follows: Figure 2 As shown, specifically, the delay drive module 100 includes a capacitor unit 110 and a drive unit 120, and the drive unit 120, the capacitor unit 110, and the switch module 200 are connected.

[0030] In some embodiments of this application, when the battery 20 is connected, the battery 20 charges the capacitor unit 110 until the capacitor voltage exceeds a preset voltage threshold. Then, the capacitor unit 110 outputs a conduction signal to the drive unit 120. Specifically, the capacitor unit 110 contains a charging circuit. When the battery 20 is connected to the activation control circuit, the battery voltage charges the capacitor within the capacitor unit 110 through the charging circuit. As an example and not a limitation, the capacitor unit 110 can employ an RC charging circuit structure. Through the combination of resistor current limiting and capacitor energy storage, a controllable charging process is achieved. When the voltage across the capacitor gradually increases and reaches the preset voltage threshold, subsequent control actions are triggered.

[0031] The time required for capacitor unit 110 to charge until its voltage exceeds a preset voltage threshold is the preset delay time. Specifically, by appropriately selecting the parameter values ​​of the resistor and capacitor in capacitor unit 110, the charging time can be precisely controlled, thereby determining the exact moment when the delay drive module 100 stops outputting the drive signal. As an example and not a limitation, the charging time of capacitor unit 110 can be calculated and designed using the RC time constant. When a delay of several hundred milliseconds is required, appropriate resistor and capacitor values ​​can be selected so that the time to charge to the preset voltage threshold is exactly equal to the required preset delay time.

[0032] The capacitor unit 110 needs to accurately detect whether the capacitor voltage has reached a preset voltage threshold and output a conduction signal when the threshold is reached. Specifically, the capacitor unit 110 can integrate a voltage comparison or threshold detection circuit to monitor the voltage change across the capacitor in real time. By way of example and not limitation, the capacitor unit 110 can utilize the breakdown characteristics of a Zener diode or the voltage comparison function of a comparator to immediately generate a conduction signal and transmit it to the drive unit 120 when the capacitor voltage rises to the preset voltage threshold, thereby triggering the drive unit 120 to stop outputting the drive signal.

[0033] In some embodiments of this application, the input terminal of the drive unit 120 is used to connect to the battery 20. The drive unit 120 outputs a drive signal in response to the battery voltage when the battery 20 is connected. Specifically, the drive unit 120 integrates a voltage response circuit, which can quickly detect changes in battery voltage and generate a corresponding drive signal. By way of example and not limitation, the drive unit 120 can utilize voltage division and switching control principles. When battery voltage is applied to the input terminal, it generates a drive signal suitable for the switching module 200 through its internal voltage division network and switching devices, thereby initiating the entire activation process.

[0034] In some embodiments of this application, the drive unit 120 is further configured to stop outputting the drive signal in response to a conduction signal. Specifically, when the drive unit 120 receives a conduction signal from the capacitor unit 110, it immediately stops outputting the drive signal, thereby ending the initial activation phase. As an example and not a limitation, the drive unit 120 may employ a logic control circuit to combine the battery voltage response and the conduction signal response to form a complete "start-maintain-stop" control logic, ensuring that the drive signal accurately stops outputting after a preset delay time.

[0035] The specific working process of the delay drive module 100 is as follows: From the moment the battery 20 is connected, the capacitor unit 110 begins charging timing, and the drive unit 120 simultaneously begins outputting a drive signal. When the charging time reaches the preset delay time, the capacitor unit 110 outputs a conduction signal, causing the drive unit 120 to stop outputting. Specifically, the entire delay control process is entirely based on the physical characteristics of the circuit, achieving precise timing control without external intervention. As an example and not a limitation, the delay drive module 100 can flexibly set different preset delay times by adjusting the charging parameters in the capacitor unit 110 to adapt to the startup time requirements of the control module 400 in different application scenarios.

[0036] In some embodiments of this application, the structural schematic diagram of the switch module 200 is as follows: Figure 3 As shown, the switch module 200 includes a first switch unit 210 and a second switch unit 220.

[0037] In some embodiments of this application, the first input terminal of the first switching unit 210 is connected to the output terminal of the delay driving module 100, so that the first switching unit 210 can receive the driving signal from the delay driving module 100; the second input terminal of the first switching unit 210 is connected to the output terminal of the control module 400, so that the first switching unit 210 can receive the first activation signal output by the control module 400.

[0038] The first switching unit 210 is used to turn on upon receiving a drive signal and / or a first activation signal, so as to output a switching signal to the second switching unit 220. Specifically, the first switching unit 210 establishes an electrical connection with the delay drive module 100 through a first input terminal. When the delay drive module 100 outputs a drive signal, the first switching unit 210 can promptly sense and respond to the drive signal.

[0039] Furthermore, the third input terminal of the first switching unit 210 is connected to the output terminal of the external device 30, enabling the system to support activation control via the external device 30. Specifically, the external device 30 can be various types of signal sources, such as photovoltaic power generation equipment, sensors, communication modules, or other control devices, which provide activation signals to the first switching unit 210 through the third input terminal.

[0040] The output terminal of the first switching unit 210 is connected to the signal input terminal of the second switching unit 220. Specifically, the first switching unit 210 performs logical processing on the received multiple input signals and outputs a unified switching signal to the second switching unit 220. As an example and not a limitation, the first switching unit 210 can adopt the control principle of a logic OR gate, and when any input terminal receives a valid signal, the output terminal generates a switching signal.

[0041] In some embodiments of this application, the power input terminal of the second switching unit 220 is used to connect to the battery 20, and the output terminal of the second switching unit 220 is connected to the input terminal of the auxiliary power module 300. Specifically, the second switching unit 220 is directly connected to the positive terminal of the battery 20 through its power input terminal, so that the battery voltage can be used as a power source input to the second switching unit 220.

[0042] The second switching unit 220 is used to turn on upon receiving a switching signal, so that the battery voltage can be transmitted to the auxiliary power module 300. Specifically, when the signal input terminal of the second switching unit 220 receives a switching signal from the first switching unit 210, its internal power switching device switches from the off state to the on state. By way of example and not limitation, the second switching unit 220 may use a MOSFET power transistor or a power transistor as the main switching device, and the on and off of the switching device can be controlled by a gate or base control signal. When the switching signal is valid, the power switching device turns on, establishing a low-impedance current path from the battery 20 to the auxiliary power module 300.

[0043] In some embodiments of this application, the circuit schematic of the activation control circuit is as follows: Figure 4 As shown, specifically, the first switching unit 210 includes resistors R6 and R7, Schottky diodes D1 and D2, and a switching transistor Q2. The first end of resistor R6 is connected to the output terminal of the delay drive module 100, and the second end of resistor R6 and the first end of resistor R7 are connected to the base of the switching transistor Q2, forming a base bias circuit for transistor Q2. Resistors R6 and R7 form a voltage divider network to provide a suitable base drive voltage for the switching transistor Q2.

[0044] In some embodiments of this application, the collector of the switching transistor Q2 is connected to the signal input terminal of the second switching unit 220, and the emitter of the switching transistor Q2 is connected to the negative terminal of the battery 20. By way of example and not limitation, the switching transistor Q2 can be an NPN transistor. When the base receives a sufficient forward bias voltage, the collector and emitter conduct, thereby transmitting the control signal to the second switching unit 220. The conduction conditions and degree of conduction of the switching transistor Q2 can be precisely controlled through the voltage divider effect of resistors R6 and R7.

[0045] The first switching unit 210 also includes resistors R1 and R2, a Schottky diode D1, and a Schottky diode D2, forming a multi-channel signal input processing circuit. Specifically, the first end of resistor R1 is used to connect to the external device 30, and the second end of resistor R1 is connected to the anode of the Schottky diode D1, providing an input channel for the external activation signal. Resistor R1 serves as a current limiting protection to prevent the activation signal output by the external device 30 from being too large and damaging the subsequent circuitry.

[0046] The feedback signal from the control module 400 is connected to the first switching unit 210. Specifically, the first end of resistor R2 is connected to the output terminal of the control module 400, and the second end of resistor R2 is connected to the anode of Schottky diode D2, establishing an input channel for the first activation signal. Resistor R2 also serves as a signal conditioner and current limiter, ensuring the safe transmission of the first activation signal output by the control module 400. The cathodes of both Schottky diode D1 and Schottky diode D2 are connected to the first end of resistor R6, realizing the logic OR aggregation function of multiple signals.

[0047] In some embodiments of this application, the second switching unit 220 includes a resistor R8, a Zener diode D5, a diode D6, and a switching transistor Q3, forming a power switch control circuit. Specifically, the second terminal of resistor R8 is connected to the output terminal of the first switching unit 210, and the first terminal of resistor R8 is connected to the anode of the Zener diode D5 and the gate of the switching transistor Q3. Resistor R8 acts as a gate drive resistor, controlling the switching speed and drive strength of the switching transistor Q3. By way of example and not limitation, the switching transistor Q3 can be a P-channel MOSFET, and the conduction state between the source and drain can be controlled by the gate voltage.

[0048] Zener diode D5 serves as a voltage reference and protection mechanism in the second switching unit 220. Specifically, the source of switching transistor Q3, the cathode of Zener diode D5, and the positive terminal of battery 20 are connected, forming a reference circuit for the gate-source voltage. Zener diode D5 can be selected with an appropriate voltage regulation value to ensure that switching transistor Q3 conducts within its normal operating range, while also providing overvoltage protection. The drain of switching transistor Q3 is connected to the anode of diode D6, and the cathode of diode D6 is connected to the input terminal of auxiliary power module 300, forming a complete power transmission channel.

[0049] In some embodiments of this application, the driving unit 120 includes resistors R3 and R5, capacitor C2, Schottky diode D4, and switching transistor Q1, forming a driving signal generation and control circuit. Specifically, the first end of resistor R3 is connected to the positive terminal of battery 20, and the second end of resistor R3 is connected to the collector of switching transistor Q1 and the anode of Schottky diode D4. Resistor R3 serves to limit current and provide bias, providing operating current to the collector of switching transistor Q1 when the battery is connected. The cathode of Schottky diode D4 is connected to the first input terminal of switching module 200, forming an output channel for the driving signal.

[0050] The control circuit of the switching transistor Q1 implements a time-delay stop function. Specifically, the base of the switching transistor Q1, the first terminal of capacitor C2, the first terminal of resistor R5, and the output terminal of capacitor unit 110 are connected to form a convergence point for multiple control signals. Resistor R5 and capacitor C2 constitute a base bias and filtering circuit to ensure the stable operation of the switching transistor Q1. The second terminal of resistor R5, the second terminal of capacitor C2, the emitter of the switching transistor Q1, and the negative terminal of battery 20 are connected to complete the basic operating circuit of the switching transistor Q1.

[0051] In some embodiments of this application, the capacitor unit 110 includes a resistor R4, a capacitor C1, and a Zener diode D3, forming a delay timing and threshold detection circuit. Specifically, the first end of the resistor R4 is connected to the positive terminal of the battery 20, and the second end of the resistor R4, the first end of the capacitor C1, and the cathode of the Zener diode D3 are connected. The resistor R4 and the capacitor C1 form an RC charging circuit, and the charging time constant is determined by the parameter values ​​of R4 and C1. The anode of the Zener diode D3 is connected to the signal input terminal of the drive unit 120, and the second end of the capacitor C1 is connected to the negative terminal of the battery 20, forming a complete delay control loop.

[0052] In some embodiments of this application, the auxiliary power module 300 employs a BUCK chip module to implement voltage conversion. Specifically, the BUCK chip module integrates a complete buck converter circuit, including a control chip and related peripheral inductors, capacitors, and resistors. By way of example and not limitation, the BUCK chip module can convert the battery voltage to +12V or other suitable auxiliary voltage to provide a stable operating power supply for the control module 400.

[0053] The activation control circuit operates as follows: When battery 20 is first connected, the battery voltage, through resistor R3, Schottky diode D4, and then through the voltage divider of resistors R6 and R7, turns on switch Q2, thereby pulling the gate of switch Q3 low. The battery voltage, through Zener diode D5, forms a conduction voltage across switch Q3, turning it on. The battery voltage then passes through the BUCK chip module to obtain the system's auxiliary voltage. This auxiliary voltage is maintained for several hundred milliseconds, providing sufficient time for the start-up of control module 400 and the output of the first activation signal.

[0054] During this process, the battery voltage charges capacitor C1 through resistor R4. When the charging time reaches the preset delay time, the voltage of capacitor C1 rises to the breakdown voltage of Zener diode D3, causing Zener diode D3 to conduct and controlling switch Q1 to conduct. After switch Q1 conducts, it pulls down the potential of the anode of Schottky diode D4, thus preventing the continuous output of the activation signal when the battery voltage is connected. It is easy to understand that after the potential of the anode of Schottky diode D4 is pulled down, the conduction state of switch Q2 is maintained by control module 400. Specifically, control module 400 outputs the first activation signal, which, through resistor R2 and Schottky diode D2, and then through the voltage divider of resistors R6 and R7, turns on switch Q2, ensuring that the auxiliary power supply can continue to work normally. Control module 400 takes over the control of switch module 200.

[0055] In some embodiments of this application, the external activation function is implemented through PV voltage or other external signals. Specifically, when the system is shut down, an activation signal can be provided by an external device 30, such as by connecting a PV voltage. After a voltage divider is formed by resistors R6 and R7, the switch Q2 is turned on again. By way of example and not limitation, the external activation signal is transmitted to the voltage divider network through resistor R1 and Schottky diode D1, triggering switch Q2 to turn on, thereby pulling the gate of switch Q3 low and reactivating the system. It is easy to understand that the entire circuit design realizes a complete functional cycle of automatic activation upon battery connection, automatic stop after delay, and reactivation by external signal.

[0056] Unlike existing technologies, this embodiment of the invention uses a delayed drive module to respond to battery access and drive the switch module to transmit power voltage. This causes the control module to output a first activation signal to drive the switch module, thereby maintaining the transmission of power voltage. This achieves automatic activation of the battery power supply system when the battery is connected, improving the ease of use of the battery power supply system. In addition, the delayed drive module stops driving the switch module after a preset delay time when the battery is connected, and the control module controls the transmission of power voltage to avoid the ineffective power consumption caused by the battery power supply system being in an active state.

[0057] Based on the activation control circuit provided in the above embodiments, some embodiments of this application also provide an energy storage power supply. Specifically, the energy storage power supply includes the activation control circuit described in the above embodiments. When a battery is connected to the energy storage power supply system, the activation control circuit can automatically sense the battery connection status and start the system operation, completing system activation without manual intervention.

[0058] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An activation control circuit, characterized in that, include: Delay drive module, switch module, control module, and auxiliary power supply module; The delay drive module is connected to the switch module, the switch module is connected to the control module and the auxiliary power module, and the auxiliary power module is also connected to the control module; The delay drive module is used to output a drive signal in response to the battery voltage when the battery is connected; and to stop outputting the drive signal after a preset delay time under the action of the battery voltage. The switching module is configured to turn on upon receiving the drive signal and / or the first activation signal, so that the battery voltage is transmitted to the auxiliary power module; The auxiliary power module is used to output an auxiliary voltage to the control module when it receives the battery voltage, so that the control module outputs the first activation signal; wherein the preset delay time is greater than the time required for the control module to output the first activation signal when it receives the auxiliary voltage.

2. The circuit according to claim 1, characterized in that, The switching module includes a first switching unit and a second switching unit. The first input terminal of the first switching unit is connected to the output terminal of the delay drive module, the second input terminal of the first switching unit is connected to the output terminal of the control module, the third input terminal of the first switching unit is connected to the output terminal of the external device, the output terminal of the first switching unit is connected to the signal input terminal of the second switching unit, and the output terminal of the second switching unit is connected to the input terminal of the auxiliary power supply module. The first switching unit is configured to turn on upon receiving the drive signal and / or the first activation signal, so as to output a switching signal to the second switching unit; The power input terminal of the second switching unit is used to connect to the battery, and the second switching unit is used to turn on when receiving the switching signal so that the battery voltage is transmitted to the auxiliary power module.

3. The circuit according to claim 2, characterized in that, The first switching unit includes resistors R6 and R7, Schottky diodes D1 and D2, and a switching transistor Q2; The first end of resistor R6 is connected to the output end of the delay drive module. The second end of resistor R6, the first end of resistor R7, and the base of switch Q2 are connected. The collector of switch Q2 is connected to the signal input end of the second switching unit. The emitter of switch Q2 is connected to the negative terminal of the battery.

4. The circuit according to claim 3, characterized in that, The first switching unit also includes resistor R1, resistor R2, Schottky diode D1, and Schottky diode D2; The first end of resistor R1 is used to connect to external devices. The second end of resistor R1 is connected to the anode of Schottky diode D1. The first end of resistor R2 is connected to the output terminal of the control module. The second end of resistor R2 is connected to the anode of Schottky diode D2. The cathodes of Schottky diode D1 and Schottky diode D2 are both connected to the first end of resistor R6.

5. The circuit according to claim 2, characterized in that, The second switching unit includes a resistor R8, a Zener diode D5, a diode D6, and a switching transistor Q3; The second end of the resistor R8 is connected to the output end of the first switching unit. The first end of the resistor R8 is connected to the anode of the Zener diode D5 and the gate of the switching transistor Q3. The source of the switching transistor Q3 is connected to the cathode of the Zener diode D5 and the positive terminal of the battery. The drain of the switching transistor Q3 is connected to the anode of the diode D6. The cathode of the diode D6 is connected to the input end of the auxiliary power supply module.

6. The circuit according to any one of claims 1-5, characterized in that, The delay drive module includes a capacitor unit and a drive unit, and the drive unit, the capacitor unit, and the switch module are connected together. When the battery is connected, the battery charges the capacitor unit until the capacitor voltage is greater than a preset voltage threshold. Then, the capacitor unit outputs a conduction signal to the drive unit. The time required for the capacitor unit to charge until the capacitor voltage is greater than the preset voltage threshold is the preset delay time. The input terminal of the drive unit is used to connect to the battery, and the drive unit is used to output the drive signal in response to the battery voltage when the battery is connected; And in response to the conduction signal, stop outputting the drive signal.

7. The circuit according to claim 6, characterized in that, The driving unit includes resistor R3, resistor R5, capacitor C2, Schottky diode D4, and switching transistor Q1; The first end of the resistor R3 is connected to the positive terminal of the battery. The second end of the resistor R3 is connected to the collector of the switch Q1 and the anode of the Schottky diode D4. The cathode of the Schottky diode D4 is connected to the first input terminal of the switch module. The base of the switch Q1 is connected to the first end of the capacitor C2, the first end of the resistor R5, and the output terminal of the capacitor unit. The second end of the resistor R5 is connected to the second end of the capacitor C2, the collector of the switch Q1, and the negative terminal of the battery.

8. The circuit according to claim 6, characterized in that, The capacitor unit includes a resistor R4, a capacitor C1, and a Zener diode D3. The first end of the resistor R4 is connected to the positive terminal of the battery. The second end of the resistor R4 is connected to the first end of the capacitor C1 and the cathode of the Zener diode D3. The anode of the Zener diode D3 is connected to the signal input terminal of the driving unit. The second end of the capacitor C1 is connected to the negative terminal of the battery.

9. The circuit according to claim 1, characterized in that, The switch module is also used to connect to an external device and output the drive signal in response to a second activation signal input from the external device.

10. An energy storage power source, characterized in that, include: The activation control circuit as described in any one of claims 1-9.

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