Power supply device and lamp

Abstract

The present application relates to the field of power supply technology, and specifically to a power supply device and a lamp, wherein the power supply device comprises a first control module, a second control module, a first power supply and a second power supply, wherein: the first control module is respectively connected to the first power supply, the second control module and the load, and the second control module is respectively connected to the first control module, the second power supply and the load; the first control module is used to control the first power supply to provide a first direct current signal to the load according to the state of the load, and to determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load; the second control module is used to control the second power supply to provide a second direct current signal to the load according to the control signal when the first control module sends a control signal to the second control module. In the embodiment of the present application, the stability of the power supply can be improved.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to a power supply device and a lamp. Background Art

[0002] Power supply devices are crucial to ensure stable operation of equipment and reduce energy consumption. Especially in application scenarios that require long-distance power supply, the performance of power supply devices directly affects the efficiency and safety of the entire equipment. At present, power supply mostly uses dual power supplies directly connected to power-consuming equipment, and two power supplies simultaneously or alternately supply power to the power-consuming equipment. However, due to the lack of effective management logic to optimize power usage, the equipment operation is unstable. Summary of the invention

[0003] An embodiment of the present application discloses a power supply device, which is used to achieve precise control of two power supplies through two control modules, thereby improving the stability of power supply.

[0004] In a first aspect, an embodiment of the present application discloses a power supply device, including a first control module, a second control module, a first power supply, and a second power supply, wherein:

[0005] The first control module is respectively connected to the first power supply, the second control module and the load, and the second control module is respectively connected to the first control module, the second power supply and the load;

[0006] A first control module, configured to control the first power supply to provide a first DC signal to the load according to a state of the load, and determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load;

[0007] The second control module is used for controlling the second power supply to provide a second DC signal to the load according to the control signal when the first control module sends a control signal to the second control module.

[0008] In a second aspect, an embodiment of the present application discloses a lamp, comprising a load and a power supply device as in the first aspect.

[0009] In an embodiment of the present application, the power supply device includes a first control module, a second control module, a first power supply and a second power supply, wherein: the first control module is respectively connected to the first power supply, the second control module and the load, and the second control module is respectively connected to the first control module, the second power supply and the load; the first control module is used to control the first power supply to provide a first DC power signal to the load according to the state of the load, and to determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load; the second control module is used to control the second power supply to provide a second DC power signal to the load according to the control signal when the first control module sends a control signal to the second control module. It can be seen that the first control module can not only control the first power supply to provide the first DC power signal to the load, but also determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load. When the first power supply cannot independently meet the load demand, the control signal is sent to the second control module. The second control module can control the second power supply to provide the second DC power signal to the load according to the control signal, which can ensure that the second power supply is controlled to provide the second DC power signal to the load only when necessary, and can flexibly adjust the power supply output to avoid overpowering or underpowering, reduce energy waste, and improve overall energy efficiency. The present application can achieve precise control of the two power supplies through two control modules, thereby improving the stability of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 It is a structural schematic diagram of a power supply device disclosed in an embodiment of the present application;

[0012] Figure 2 It is a structural schematic diagram of another power supply device disclosed in an embodiment of the present application;

[0013] Figure 3 It is a structural schematic diagram of another power supply device disclosed in an embodiment of the present application;

[0014] Figure 4 is a structural schematic diagram of a first control module disclosed in an embodiment of the present application;

[0015] Figure 5 is a schematic diagram of the structure of a first control unit disclosed in an embodiment of the present application;

[0016] Figure 6is a structural schematic diagram of a first switch unit disclosed in an embodiment of the present application;

[0017] Figure 7 is a structural schematic diagram of another first control module disclosed in an embodiment of the present application;

[0018] Figure 8 is a structural schematic diagram of a first conversion circuit disclosed in an embodiment of the present application;

[0019] Fig. 9 is a structural schematic diagram of another first conversion circuit disclosed in an embodiment of the present application;

[0020] Fig.10 is a structural schematic diagram of another first conversion circuit disclosed in an embodiment of the present application;

[0021] Fig.11 is a structural schematic diagram of a second conversion circuit disclosed in an embodiment of the present application;

[0022] Fig.12 is a structural schematic diagram of another second conversion circuit disclosed in an embodiment of the present application;

[0023] Fig.13 is a structural schematic diagram of another second conversion circuit disclosed in an embodiment of the present application;

[0024] Fig.14 is a structural schematic diagram of another first control module disclosed in an embodiment of the present application;

[0025] Fig.15 is a structural schematic diagram of a first starting unit disclosed in an embodiment of the present application;

[0026] Fig.16 is a structural schematic diagram of another first control module disclosed in an embodiment of the present application;

[0027] Fig.17 is a structural schematic diagram of a first insurance unit disclosed in an embodiment of the present application;

[0028] Fig.18 is a structural schematic diagram of a second control module disclosed in an embodiment of the present application;

[0029] Fig.19 is a structural schematic diagram of a second control unit disclosed in an embodiment of the present application;

[0030] Fig. 20 is a structural schematic diagram of a second switch unit disclosed in an embodiment of the present application;

[0031] Fig.21 is a structural schematic diagram of another second control module disclosed in an embodiment of the present application;

[0032] Fig. 22 is a structural schematic diagram of a second conversion unit disclosed in an embodiment of the present application;

[0033] Fig.23 is a schematic structural diagram of another second conversion unit disclosed in an embodiment of the present application;

[0034] Fig.24 is a structural schematic diagram of another second control module disclosed in an embodiment of the present application;

[0035] Fig.25 is a structural schematic diagram of a second starting unit disclosed in an embodiment of the present application;

[0036] Fig.26 is a structural schematic diagram of another second control module disclosed in an embodiment of the present application;

[0037] Fig. 27 is a structural schematic diagram of a second insurance unit disclosed in an embodiment of the present application;

[0038] Fig.28 It is a structural schematic diagram of a lamp disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0040] The embodiment of the present application discloses a power supply device, which is used to achieve accurate control of two power supplies through two control modules, thereby improving the stability of power supply.

[0041] In order to better understand the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below.

[0042] See also Figure 1 , Figure 1 Schematic diagram of a power supply device disclosed in an embodiment of the present application. Figure 1As shown, the power supply device may include two power supplies (i.e., power supply 1 and power supply 2) and a load. The two power supplies can supply power to the load respectively, providing a more stable power supply to the load. However, when the two power supplies directly supply power to the load without a suitable control mechanism, power supply redundancy or imbalance may occur, resulting in energy waste. For example, when the load power demand is low, the two power supplies still operate at full power, resulting in unnecessary energy consumption. In addition, if the two power supplies do not have a suitable power-on sequence and power management strategy, voltage fluctuations or power supply interruptions will occur when the power supplies are switched or supplied simultaneously, thereby affecting the normal operation of the load.

[0043] See also Figure 2 , Figure 2 Schematic diagram of another power supply device disclosed in the embodiment of the present application. Figure 2 As shown, the power supply device may include a power supply 3, a power supply 4, a controller and a load. The power supply 3 and the power supply 4 may be connected to the load through the controller. The controller may switch or use the power supply 3 and the power supply 4 simultaneously according to the real-time power demand of the load, and may ensure voltage stability during the switching process, prevent power supply interruption or voltage fluctuation, and thus protect the stable operation of the load. However, when two power supplies supply power to the load through one controller, especially under high load conditions, the controller and related connection equipment must be able to withstand high currents, requiring the use of more robust and high-specification electronic components, such as thicker wires and switchgear that is more resistant to high temperatures and high currents. In addition, for loads that require long-distance power supply, long-distance transmission of large currents can result in significant voltage drops and energy losses.

[0044] In order to solve the above problems, the present application designs a power supply device, which realizes precise control of two power supplies through two control modules, thereby improving the stability of power supply.

[0045] See also Figure 3 , Figure 3 is a schematic diagram of the structure of another power supply device disclosed in the embodiment of the present application. Figure 3 As shown, the power supply device may include a first control module, a second control module, a first power source and a second power source.

[0046] The first control module is connected to the first power supply, the second control module and the load respectively, and the second control module is connected to the first control module, the second power supply and the load respectively.

[0047] The first control module can monitor the state of the load. Exemplarily, the first control module can monitor the state of the load through a sensor. For example, the sensor can be a current sensor or a voltage sensor. Exemplarily, the first control module can also monitor the state of the load through a software algorithm.

[0048] The first control module can control the first power supply to provide a first DC signal to the load according to the state of the load, that is, it can evaluate the power demand of the load according to the data fed back from the load, control the output of the first power supply, ensure that the power supply matches the demand, and avoid overload or insufficient power supply.

[0049] The state of the load can be either working state or non-working state. The working state of the load can be understood as the load being in an active or running mode, specifically, the load is consuming power to perform its function. For example, for mechanical equipment, such as a pump, a fan, or a machine on a production line, the working state means that the machine is in mechanical operation. In a lighting system, the working state means that the light is on.

[0050] In some embodiments, the first control module can control the first power supply to provide the first DC signal to the load when the load is in a working state, and control the first power supply not to provide the first DC signal to the load when the load is in a non-working state. It can be seen that by providing the first DC signal to the load only when the load is in a working state, energy waste when the load does not need electricity can be avoided, thereby optimizing energy use and reducing unnecessary power consumption.

[0051] The first control module can also monitor the power of the first power supply and the working power of the load. The power of the first power supply is the output power of the first power supply. The working power of the load is the actual power consumption of the load. The first control module can determine whether to send a control signal to the second control module based on the power of the first power supply and the working power of the load, that is, compare the power of the first power supply with the working power of the load to determine whether to send a control signal to the second control module.

[0052] In some embodiments, the first control module can send a control signal to the second control module when the power of the first power supply does not meet the working power of the load, that is, when the power of the first power supply is less than the working power of the load, indicating that the first power supply cannot meet the power required by the load. When the power of the first power supply meets the working power of the load, that is, when the power of the first power supply is greater than or equal to the working power of the load, indicating that the first power supply can meet the power required by the load, the first control module does not send a control signal to the second control module.

[0053] When the power of the first power supply does not meet the working power of the load, the second control module can receive a control signal from the first control module, and then control the second power supply to provide a second DC signal to the load according to the control signal.

[0054] The control signal may be a signal for controlling the power supply of the second power source.

[0055] In some embodiments, the control signal may include a target power. The first control module may determine the target power according to the power of the first power supply and the working power of the load. Accordingly, the second control module may control the second power supply to supply power to the load according to the target power, so that the power supply power of the second power supply is the target power, thereby ensuring the normal operation of the load.

[0056] The flexible scheduling of the second power supply allows the power supply device to better adapt to rapidly changing or growing loads. The second control module controls the output of the second power supply by responding to the control signal of the first control module. This can not only enhance the emergency response capability of the power supply system, but also optimize the use and management of energy, especially when the load demand fluctuates greatly.

[0057] The second control module can provide an additional guarantee to ensure that the required power can be quickly supplemented when the first power supply is insufficient to meet the load demand. The second power supply will only provide the second DC signal to the load according to the control of the second control module when the first power supply cannot meet the load demand, which can ensure that additional power support is provided when the first power supply is insufficient, thereby improving the stability of power supply.

[0058] It should be understood that the connection in the present application may be an electrical connection.

[0059] See also Figure 4 , Figure 4 Schematic diagram of the structure of a first control module disclosed in the embodiment of the present application. Figure 4 As shown, a first control unit and a first switching unit.

[0060] The first control unit is respectively connected to the first power supply, the second control module and the first switch unit, and the first switch unit is respectively connected to the first power supply and the load.

[0061] The first power supply can provide necessary power for the entire device, including powering the first control unit, and powering the load through the first switch unit. The first switch unit serves as an intermediary between the first power supply and the load, and its on and off state is controlled by the first control unit. The first control unit can control the state of the first switch unit according to the working state of the load to control the first power supply to provide the load with a first DC signal. The first control unit controls the connection from the first power supply to the load through the first switch unit, which can prevent accidental current overload or close the loop between them when the power supply is not needed, which can increase the safety and efficiency of the device, reduce energy waste, ensure that the load is powered only when needed, and improve energy utilization efficiency.

[0062] The first control unit can also determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load. For detailed description, please refer to the above related description.

[0063] See also Figure 5 , Figure 5 Schematic diagram of the structure of a first control unit disclosed in the embodiment of the present application. Figure 5 As shown, the first control unit may include a first Bluetooth chip, a first Bluetooth antenna, a first Bluetooth crystal oscillator, a first resistor R1, a first inductor L1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5.

[0064] The first end of the first Bluetooth chip is respectively connected to one end of the first resistor R1 and one end of the first capacitor C1, the other end of the first resistor R1 is respectively connected to one end of the second capacitor C2 and the first Bluetooth antenna, the second end of the first Bluetooth chip is respectively connected to one end of the third capacitor C3 and the first end of the first Bluetooth crystal oscillator, the third end of the first Bluetooth chip is respectively connected to one end of the fourth capacitor C4 and the second end of the first Bluetooth crystal oscillator, the fourth end of the first Bluetooth chip is connected to one end of the first inductor L1, the other end of the first inductor L1 is respectively connected to the fifth end of the first Bluetooth chip and one end of the fifth capacitor C5, the other end of the first capacitor C1, the other end of the second capacitor C2, the other end of the third capacitor C3, the other end of the fourth capacitor C4, the third end and the fourth end of the first Bluetooth crystal oscillator and the other end of the fifth capacitor C5 are respectively connected to the ground.

[0065] The first Bluetooth chip can control the state of the first switch unit according to the working state of the load, so as to control the first power supply to provide the first direct current signal to the load.

[0066] The model of the first Bluetooth chip may be FR8008GP, or may be other models with equivalent functions.

[0067] The first Bluetooth chip can also control whether the first Bluetooth antenna sends a control signal to the second control module according to the power of the first power source and the working power of the load. When the power of the first power source does not meet the working power of the load, the first Bluetooth chip can control the first Bluetooth antenna to send a control signal to the second control module.

[0068] The first Bluetooth antenna can receive and send Bluetooth data. For example, the first Bluetooth antenna can send a control signal to the second control module. For example, the first Bluetooth antenna can also receive a control instruction sent by a user through an electronic device and send the control instruction to the first Bluetooth chip. The first Bluetooth chip can be controlled according to the control instruction. The first capacitor C1, the second capacitor C2 and the first resistor R1 can help achieve impedance matching between the antenna and the first Bluetooth chip. Ideal impedance matching can ensure that the signal has minimal reflection and the highest transmission efficiency during the transmission process between the antenna and the circuit.

[0069] The first Bluetooth crystal oscillator can provide an accurate clock signal for the first Bluetooth chip, and an accurate clock signal is essential to ensure the accuracy and reliability of data transmission. The third capacitor C3 and the fourth capacitor C4 are used as matching capacitors to set the correct load capacitance for the first Bluetooth crystal oscillator, which can ensure that the frequency output by the first Bluetooth crystal oscillator accurately matches the frequency required by the first Bluetooth chip, providing the best performance and the smallest frequency deviation.

[0070] The first inductor L1 is a power inductor of a DC-DC converter of the first Bluetooth chip, which can realize power storage and conversion. The fifth capacitor C5 and the first inductor L1 form a filter network, which can ensure that the first Bluetooth chip obtains a stable power supply.

[0071] like Figure 5 As shown, the first control unit may further include a first serial port module, which is connected to the sixth terminal of the first Bluetooth chip and can transmit serial port data to the second control module by wire, thereby realizing wired control in addition to wireless reception of signals.

[0072] See also Figure 6 , Figure 6 is a schematic diagram of the structure of a first switch unit disclosed in an embodiment of the present application. Figure 6 As shown, the first switch unit may include a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth capacitor C6, a seventh capacitor C7, a first switch device Q1 and a second switch device Q2.

[0073] The first end of the first switch device Q1 is respectively connected to one end of the second resistor R2 and one end of the third resistor R3, the second end of the first switch device Q1 is connected to one end of the fourth resistor R4, the first end of the second switch device Q2 is respectively connected to the other end of the fourth resistor R4, one end of the fifth resistor R5 and one end of the sixth capacitor C6, the second end of the second switch device Q2 is respectively connected to the other end of the fifth resistor R5, the other end of the sixth capacitor C6 and the first power supply, the other end of the second resistor R2 is connected to the first control unit, the third end of the second switch device Q2 is respectively connected to one end of the seventh capacitor C7 and the load, and the third end of the first switch device Q1, the other end of the third resistor R3 and the other end of the seventh capacitor C7 are respectively connected to the ground.

[0074] The first switch device Q1 may be a transistor or other device for controlling a circuit switch. Figure 6 The description is made by taking the first switch device Q1 as an npn-type transistor as an example.

[0075] When the first switching device Q1 is a transistor, the base of the transistor is the first end of the first switching device Q1, the collector of the transistor is the second end of the first switching device Q1, and the emitter of the transistor is the third end of the first switching device Q1.

[0076] The second switch device Q2 may be a metal oxide semiconductor (MOS) tube, or other devices with equivalent functions. Figure 6 The second switch device Q2 is an N-type MOS tube for example, wherein the S terminal of the second switch device Q2 represents the source of the MOS tube, the D terminal of the second switch device Q2 represents the drain of the MOS tube, and the G terminal of the second switch device Q2 represents the gate of the MOS tube.

[0077] When the second switch device Q2 is a MOS tube, the gate of the MOS tube is the first end of the second switch device Q2, the source of the MOS tube is the second end of the second switch device Q2, and the drain of the MOS tube is the third end of the second switch device Q2.

[0078] The first control unit may control the state of the first switch unit according to the state of the load, so that the first power supply provides a first direct current signal to the load.

[0079] In the case where the first switch unit receives the switch control signal sent by the first control unit, the switch control signal controls the first switch device Q1 to be turned on through the first end of the first switch device Q1, and the second resistor R2 acts as a current limiting protection resistor to protect the first switch device Q1 from being burned by excessive current. The third resistor R3 can provide a bias voltage for the first end of the first switch device Q1, which can ensure that the first switch device Q1 is turned on based on the bias voltage. After the first switch device Q1 is turned on, the current can flow through the fourth resistor R4 and the fifth resistor R5 to charge the sixth capacitor C6. The sixth capacitor C6 can play a delay role. The sixth capacitor C6 cooperates with the fourth resistor R4 and the fifth resistor R5 to control the turn-on time of the second switch device Q2 and prevent the second switch device Q2 from being damaged by instantaneous large current. After the sixth capacitor C6 is charged to a specific voltage, the second switch device Q2 starts to turn on. After the second switch device Q2 is turned on, the first power supply can reach the output end of the first switch unit through the second switch device Q2 to supply power to the downstream load.

[0080] When the first switch unit does not receive the switch control signal sent by the first control unit, the first switch device Q1 is turned off, the sixth capacitor C6 starts to discharge through the fourth resistor R4 and the fifth resistor R5, and the second switch device Q2 is also turned off, thereby cutting off the power supply.

[0081] It should be understood that the seventh capacitor C7 may include one capacitor or multiple capacitors. In the case where the seventh capacitor C7 includes multiple capacitors, the seventh capacitor C7 may be formed by connecting the multiple capacitors in parallel.

[0082] The seventh capacitor C7 is used as a filter capacitor to smooth the voltage after switching and prevent the switching noise from affecting other components in the circuit.

[0083] See also Figure 7 , Figure 7 is a schematic diagram of the structure of another first control module disclosed in the embodiment of the present application. Figure 7 As shown, the first control module may further include a first conversion unit.

[0084] The input end of the first conversion unit is connected to the first power supply and the first switch unit respectively, and the output end of the first conversion unit is connected to the first control unit.

[0085] In order to ensure the voltage compatibility between different components, the first conversion unit can convert the third DC signal into the first DC signal, and the voltage of the third DC signal is greater than the voltage of the first DC signal. Since different device components have different voltage requirements, too high or too low voltage will cause device damage or performance degradation. For example, the load connected to the first control unit requires a higher operating voltage, while the first control unit requires a lower operating voltage. Therefore, the first conversion unit is required to convert the third DC signal with a higher voltage provided by the first power supply into the first DC signal with a lower voltage.

[0086] In some embodiments, the first conversion unit may include a first conversion circuit and a second conversion circuit.

[0087] The input end of the first conversion circuit is connected to the first power supply and the first switch unit respectively, the output end of the first conversion circuit is connected to the second conversion circuit, and the output end of the second conversion circuit is connected to the first control unit.

[0088] The first conversion circuit can convert the third DC signal into a seventh DC signal, and the voltage of the third DC signal is greater than the voltage of the seventh DC signal.

[0089] The second conversion circuit can convert the seventh DC signal into the first DC signal, and the voltage of the seventh DC signal is greater than the voltage of the first DC signal.

[0090] The first conversion circuit is the input end of the first conversion unit, which can provide the first stage of voltage conversion and provide a lower output voltage for the second conversion circuit. The output end of the second conversion circuit is the output end of the first conversion unit. Through step-by-step voltage reduction and voltage stabilization processing, it can ensure that the back-end circuit (first control unit) can operate at the optimal voltage, thereby improving the overall performance and reliability of the device.

[0091] See also Figure 8 , Figure 8 is a schematic diagram of the structure of a first conversion circuit disclosed in an embodiment of the present application. Figure 8 As shown, the first conversion circuit may include a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, a second inductor L2 and a first conversion chip.

[0092] The first end of the first conversion chip is respectively connected to one end of the sixth resistor R6 and the first power supply, the second end of the first conversion chip is respectively connected to the other end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the eighth capacitor C8, the third end of the first conversion chip is respectively connected to one end of the ninth capacitor C9 and one end of the second inductor L2, the other end of the second inductor L2 is respectively connected to one end of the eighth resistor R8, one end of the tenth capacitor C10 and the second conversion circuit, the fourth end of the first conversion chip is connected to the other end of the ninth capacitor C9, the fifth end of the first conversion chip is respectively connected to the other end of the eighth resistor R8, the other end of the tenth capacitor C10 and one end of the ninth resistor R9, the other end of the seventh resistor R7, the other end of the eighth capacitor C8 and the other end of the ninth resistor R9 are respectively connected to the ground.

[0093] The first conversion chip can convert the third DC power signal into a seventh DC power signal. Exemplarily, the first conversion chip can be a DC-to-DC step-down chip.

[0094] The sixth resistor R6 and the seventh resistor R7 can form a voltage divider, which can reduce the DC voltage of the first power input to a predetermined lower level.

[0095] The eighth capacitor C8 and the seventh resistor R7 can form a filter network, which can help stabilize the voltage input to the first conversion chip.

[0096] The eighth resistor R8, the ninth resistor R9 and the ground terminal can form a voltage divider, which can fine-tune the voltage to ensure that a suitable voltage can be output.

[0097] The eighth resistor R8 and the tenth capacitor C10 can form a filtering network, which can provide additional decoupling and noise filtering functions and ensure the stability of the output voltage.

[0098] See also Fig. 9 , Fig. 9 is a schematic diagram of the structure of another first conversion circuit disclosed in an embodiment of the present application. Fig. 9 The first conversion circuit shown consists of Figure 8 The first conversion circuit shown is optimized. Fig. 9 As shown, the first conversion circuit may further include a tenth resistor R10.

[0099] One end of the tenth resistor R10 is connected to one end of the tenth capacitor C10, and the other end of the tenth resistor R10 is connected to the ground.

[0100] The tenth resistor R10 can help the tenth capacitor C10 to discharge quickly when the power is turned off or “powered down”, thereby eliminating residual charges in the circuit.

[0101] See also Fig.10, Fig.10 is a structural diagram of another first conversion circuit disclosed in an embodiment of the present application. Fig.10 The first conversion circuit shown consists of Fig. 9 The first conversion circuit shown is optimized. Fig.10 As shown, the first conversion circuit may further include a first voltage stabilizing circuit and a second voltage stabilizing circuit.

[0102] The first voltage stabilizing circuit is connected to the first end of the first conversion chip, and the first voltage stabilizing circuit can filter high-frequency noise in the third DC signal. The second voltage stabilizing circuit is connected to one end of the tenth capacitor C10, and the second voltage stabilizing circuit can filter high-frequency noise in the seventh DC signal.

[0103] The first voltage stabilizing circuit may include an eleventh capacitor C11 and a twelfth capacitor C12.

[0104] One end of the eleventh capacitor C11 is connected to the first end of the first conversion chip, the other end of the eleventh capacitor C11 is grounded, and the twelfth capacitor C12 is connected in parallel to the eleventh capacitor C11.

[0105] Among them, the eleventh capacitor C11 can be a capacitor with a capacitance value range of microfarad level to millifarad level, which can filter out low-frequency noise, smooth out the lower frequency components in the voltage ripple, and provide a larger energy storage for the circuit. The twelfth capacitor C12 can be a capacitor with a capacitance value range of picofarad level to nanofarad level, which can filter out high-frequency noise, handle higher frequency spikes, and respond quickly to high-frequency changes.

[0106] It should be understood that the eleventh capacitor C11 may include one capacitor or multiple capacitors. In the case where the eleventh capacitor C11 includes multiple capacitors, the eleventh capacitor C11 may be formed by connecting the multiple capacitors in parallel. The twelfth capacitor C12 may include one capacitor or multiple capacitors. In the case where the twelfth capacitor C12 includes multiple capacitors, the twelfth capacitor C12 may be formed by connecting the multiple capacitors in parallel.

[0107] The second voltage stabilizing circuit may include a thirteenth capacitor C13 and a fourteenth capacitor C14.

[0108] One end of the thirteenth capacitor C13 is connected to one end of the tenth capacitor C10 , the other end of the thirteenth capacitor C13 is grounded, and the fourteenth capacitor C14 is connected in parallel to the thirteenth capacitor C13 .

[0109] Among them, the thirteenth capacitor C13 can be a capacitor with a capacitance value range from microfarad level to millifarad level, which can filter out low-frequency noise, smooth the lower frequency components in the voltage ripple, and provide a larger energy storage for the circuit, thereby maintaining voltage stability during instantaneous load changes.

[0110] Among them, the fourteenth capacitor C14 can be a capacitor with a capacitance value ranging from the pico-farad level to the nano-farad level, which can filter out high-frequency noise, can handle higher frequency spikes, and can quickly respond to high-frequency changes.

[0111] It should be understood that the thirteenth capacitor C13 may include one capacitor or multiple capacitors. In the case where the thirteenth capacitor C13 includes multiple capacitors, the thirteenth capacitor C13 may be formed by connecting these multiple capacitors in parallel. The fourteenth capacitor C14 may include one capacitor or multiple capacitors. In the case where the fourteenth capacitor C14 includes multiple capacitors, the fourteenth capacitor C14 may be formed by connecting these multiple capacitors in parallel.

[0112] See also Fig.11 , Fig.11 is a schematic diagram of the structure of a second conversion circuit disclosed in an embodiment of the present application. Fig.11 As shown, the second conversion circuit may include an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth capacitor C15, a sixteenth capacitor C16, a seventeenth capacitor C17, a third inductor L3 and a second conversion chip.

[0113] The first end of the second conversion chip is respectively connected to one end of the eleventh resistor R11 and the first conversion circuit, the second end of the second conversion chip is respectively connected to the other end of the eleventh resistor R11, one end of the twelfth resistor R12 and one end of the fifteenth capacitor C15, the third end of the second conversion chip is respectively connected to one end of the sixteenth capacitor C16 and one end of the third inductor L3, the other end of the third inductor L3 is respectively connected to one end of the thirteenth resistor R13, one end of the seventeenth capacitor C17 and the first control unit, the fourth end of the second conversion chip is connected to the other end of the sixteenth capacitor C16, the fifth end of the second conversion chip is respectively connected to the other end of the thirteenth resistor R13, the other end of the seventeenth capacitor C17 and one end of the fourteenth resistor R14, the other end of the twelfth resistor R12, the other end of the fifteenth capacitor C15 and the other end of the fourteenth resistor R14 are respectively connected to the ground.

[0114] The eleventh resistor R11 and the twelfth resistor R12 may form a voltage divider, which may reduce the DC voltage input to the first conversion circuit to a predetermined lower level.

[0115] The fifteenth capacitor C15 and the twelfth resistor R12 can form a filter network, which can help stabilize the voltage input to the second conversion chip.

[0116] The second conversion chip can convert the seventh DC power signal into the first DC power signal. Exemplarily, the second conversion chip can be a buck switching regulator. The buck switching regulator can be a PL88104 or other models with equivalent functions.

[0117] The thirteenth resistor R13, the fourteenth resistor R14 and the ground terminal can form a voltage divider, which can fine-tune the voltage to ensure that a suitable voltage can be output.

[0118] The thirteenth resistor R13 and the seventeenth capacitor C17 can form a filtering network, which can provide additional decoupling and noise filtering functions and ensure the stability of the output voltage.

[0119] See also Fig.12 , Fig.12 is a schematic diagram of the structure of another second conversion circuit disclosed in an embodiment of the present application. Fig.12 The second conversion circuit shown consists of Fig.11 The second conversion circuit shown is optimized. Fig.12 As shown, the second conversion circuit may further include a fifteenth resistor R15.

[0120] One end of the fifteenth resistor R15 is connected to one end of the seventeenth capacitor C17, and the other end of the fifteenth resistor R15 is connected to the ground.

[0121] The fifteenth resistor R15 can help the seventeenth capacitor C17 to discharge quickly when the power is turned off or "powered down", thereby eliminating the residual charge in the circuit.

[0122] See also Fig.13 , Fig.13 is a structural diagram of another second conversion circuit disclosed in the embodiment of the present application. Fig.13 The first conversion circuit shown consists of Fig.12 The second conversion circuit shown is optimized. Fig.13 As shown, the second conversion circuit may further include a third voltage stabilizing circuit and a fourth voltage stabilizing circuit.

[0123] The third voltage stabilizing circuit is connected to the first end of the second conversion chip, and the third voltage stabilizing circuit can filter high-frequency noise in the seventh DC signal. The fourth voltage stabilizing circuit is connected to one end of the seventeenth capacitor C17, and the fourth voltage stabilizing circuit can filter high-frequency noise in the first DC signal.

[0124] The third voltage stabilizing circuit may include an eighteenth capacitor C18 and a nineteenth capacitor C19.

[0125] One end of the eighteenth capacitor C18 is connected to the first end of the second conversion chip, the other end of the eighteenth capacitor C18 is grounded, and the nineteenth capacitor C19 is connected in parallel with the eighteenth capacitor C18.

[0126] Among them, the eighteenth capacitor C18 can be a capacitor with a capacitance value range of microfarad level to millifarad level, which can filter out low-frequency noise, smooth out the lower frequency components in the voltage ripple, and provide a larger energy storage for the circuit; the nineteenth capacitor C19 can be a capacitor with a capacitance value range of picofarad level to nanofarad level, which can filter out high-frequency noise, handle higher frequency spikes, and respond quickly to high-frequency changes.

[0127] It should be understood that the eighteenth capacitor C18 may include one capacitor or multiple capacitors. When the eighteenth capacitor C18 includes multiple capacitors, the eighteenth capacitor C18 may be formed by connecting these multiple capacitors in parallel. The nineteenth capacitor C19 may include one capacitor or multiple capacitors. When the nineteenth capacitor C19 includes multiple capacitors, the nineteenth capacitor C19 may be formed by connecting these multiple capacitors in parallel.

[0128] The fourth voltage stabilizing circuit may include a twentieth capacitor C20 and a twenty-first capacitor C21.

[0129] One end of the twentieth capacitor C20 is connected to one end of the seventeenth capacitor C17 , the other end of the twentieth capacitor C20 is grounded, and the twenty-first capacitor C21 is connected in parallel to the twentieth capacitor C20 .

[0130] Among them, the twentieth capacitor C20 can be a capacitor with a capacitance value range from microfarad level to millifarad level, which can filter out low-frequency noise, smooth the lower frequency components in the voltage ripple, and provide a larger energy storage for the circuit, thereby maintaining voltage stability during instantaneous load changes.

[0131] Among them, the twenty-first capacitor C21 can be a capacitor with a capacitance value range from the pico-farad level to the nano-farad level, which can filter out high-frequency noise, can handle higher frequency spikes, and can quickly respond to high-frequency changes.

[0132] It should be understood that the twentieth capacitor C20 may include one capacitor or multiple capacitors. In the case where the twentieth capacitor C20 includes multiple capacitors, the twentieth capacitor C20 may be formed by connecting the multiple capacitors in parallel. The twenty-first capacitor C21 may include one capacitor or multiple capacitors. In the case where the twenty-first capacitor C21 includes multiple capacitors, the twenty-first capacitor C21 may be formed by connecting the multiple capacitors in parallel.

[0133] See also Fig.14 , Fig.14 is a schematic diagram of the structure of another first control module disclosed in the embodiment of the present application. Fig.14 As shown, the first control module may further include a first starting unit.

[0134] An input end of the first startup unit is connected to the first power supply, and an output end of the first startup unit is respectively connected to the first conversion unit and the first switch unit.

[0135] The first starting unit can filter the overshoot voltage in the fourth direct current signal to obtain the third direct current signal.

[0136] See also Fig.15 , Fig.15 Schematic diagram of the structure of a first starting unit disclosed in the embodiment of the present application. Fig.15 As shown, the first start-up unit may include a sixteenth resistor R16, a seventeenth resistor R17, a twenty-second capacitor C22, a twenty-third capacitor C23, a first diode D1 and a third switch device Q3.

[0137] The first end of the third switch device Q3 is respectively connected to one end of the twenty-second capacitor C22, one end of the sixteenth resistor R16, the cathode of the first diode D1 and one end of the seventeenth resistor R17, the second end of the third switch device Q3 is respectively connected to the other end of the twenty-second capacitor C22, the other end of the sixteenth resistor R16 and the first power supply, the third end of the third switch device Q3 is respectively connected to one end of the twenty-third capacitor C23, the first conversion unit and the first switch unit, the anode of the first diode D1, the other end of the seventeenth resistor R17 and the other end of the twenty-third capacitor C23 are respectively connected to the ground.

[0138] The third switch device Q3 may be a MOS tube, or other devices with equivalent functions. Fig.15 The description is made by taking the third switch device Q3 as a MOS tube as an example.

[0139] When the third switch device Q3 is a MOS tube, the gate of the MOS tube is the first end of the third switch device Q3, the drain of the MOS tube is the second end of the third switch device Q3, and the source of the MOS tube is the third end of the third switch device Q3.

[0140] The twenty-second capacitor C22 is used as a delay capacitor. After the circuit is powered on, the twenty-second capacitor C22 is charged through the sixteenth resistor R16 and the seventeenth resistor R17, so that the gate voltage of the third switch device Q3 gradually increases.

[0141] The sixteenth resistor R16 and the seventeenth resistor R17 can form a resistor divider, which can control the current flowing to the twenty-second capacitor C22, thereby controlling the charging rate of the twenty-second capacitor C22 and affecting the turn-on delay of the third switch device Q3.

[0142] The first diode D1 serves as a protection diode, and can protect the third switching device Q3 from being damaged.

[0143] The twenty-third capacitor C23 can stabilize the source voltage of the third switch device Q3 and reduce noise and power supply voltage fluctuation.

[0144] When the first startup unit is powered on, the sixteenth resistor R16 and the seventeenth resistor R17 start to charge the twenty-second capacitor C22, and the gate voltage gradually increases. Once the gate voltage reaches the threshold voltage of the third switch device Q3, the third switch device Q3 starts to conduct.

[0145] See also Fig.16 , Fig.16 is a schematic diagram of the structure of another first control module disclosed in the embodiment of the present application. Fig.16 As shown, the first control module may further include a first insurance unit.

[0146] The input end of the first insurance unit is connected to the first power supply, and the output end of the first insurance unit is connected to the first starting unit.

[0147] The first insurance unit may send the fourth DC signal to the first starting unit when the current of the fourth DC signal does not exceed the preset current.

[0148] See also Fig.17 , Fig.17 Schematic diagram of the structure of a first insurance unit disclosed in the embodiment of the present application. Fig.17 As shown, the first insurance unit may include an eighteenth resistor R18, a twenty-fourth capacitor C24 and a second diode D2.

[0149] One end of the eighteenth resistor R18 is connected to the first power supply, the other end of the eighteenth resistor R18 is respectively connected to the first starting unit, one end of the twenty-fourth capacitor C24 and the cathode of the second diode D2, and the anode of the second diode D2 and the other end of the twenty-fourth capacitor C24 are respectively connected to the ground.

[0150] When the current flowing through the eighteenth resistor R18 exceeds the preset current, the eighteenth resistor R18 can disconnect the circuit, thereby protecting the back-end circuit from being damaged by excessive current and preventing possible damage caused by short circuit or overload.

[0151] Exemplarily, the eighteenth resistor R18 can disconnect the circuit when the current exceeds 5A.

[0152] The twenty-fourth capacitor C24 acts as a filter capacitor to reduce high-frequency noise on the power line and prevent high-frequency interference signals from entering the power conversion circuit. It can absorb and isolate the peak voltage on the power line and improve the stability and purity of the power supply.

[0153] The second diode D2 may be a transient voltage suppressor (TVS) diode, which can clamp excessively high voltage in an instant and limit the voltage to a safe level, thereby preventing voltage spikes from damaging the circuit.

[0154] Exemplarily, the second diode D2 may be a 40V transient voltage suppression diode. When the voltage exceeds 40V, the second diode D2 may be quickly turned on to shunt the excess voltage to the ground line, thereby protecting the back-end circuit from being affected.

[0155] See also Fig.18 , Fig.18 Schematic diagram of the structure of a second control module disclosed in the embodiment of the present application. Fig.18 As shown, a second control unit and a second switch unit.

[0156] The second control unit is respectively connected to the second power supply, the first control module and the second switch unit, and the second switch unit is respectively connected to the second power supply and the load.

[0157] The second power supply can provide necessary power for the entire device, including powering the second control unit, and powering the load through the second switch unit. The second switch unit serves as an intermediary between the second power supply and the load, and its on and off state is controlled by the second control unit. The second control unit can control the state of the second switch unit according to the working state of the load to control the second power supply to provide a second DC signal to the load. The second control unit can receive a control signal from the first control module. When the first control module sends a control signal to the second control unit, the second control unit can control the second power supply to provide a second DC signal to the load according to the control signal. The flexible scheduling of the second power supply enables the power supply device to be more adaptable to rapidly changing or growing load conditions. The second control module controls the output of the second power supply by responding to the control signal of the first control module, which can enhance the emergency response capability of the power supply system.

[0158] See also Fig.19 , Fig.19 Schematic diagram of the structure of a second control unit disclosed in the embodiment of the present application. Fig.19 As shown, the second control unit may include a second Bluetooth chip, a second Bluetooth antenna, a second Bluetooth crystal oscillator, a nineteenth resistor R19, a fourth inductor L4, a twenty-fifth capacitor C25, a twenty-sixth capacitor C26, a twenty-seventh capacitor C27, a twenty-eighth capacitor C28 and a twenty-ninth capacitor C29.

[0159] The first end of the second Bluetooth chip is respectively connected to one end of the nineteenth resistor R19 and one end of the twenty-fifth capacitor C25, the other end of the nineteenth resistor R19 is respectively connected to one end of the twenty-sixth capacitor C26 and the second Bluetooth antenna, the second end of the second Bluetooth chip is respectively connected to one end of the twenty-seventh capacitor C27 and the first end of the second Bluetooth crystal oscillator, the third end of the second Bluetooth chip is respectively connected to one end of the twenty-eighth capacitor C28 and the second end of the second Bluetooth crystal oscillator, the fourth end of the second Bluetooth chip is connected to one end of the fourth inductor L4, the other end of the fourth inductor L4 is respectively connected to the fifth end of the second Bluetooth chip and one end of the twenty-ninth capacitor C29, the other end of the twenty-fifth capacitor C25, the other end of the twenty-sixth capacitor C26, the other end of the twenty-seventh capacitor C27, the other end of the twenty-eighth capacitor C28, the third end and the fourth end of the second Bluetooth crystal oscillator and the other end of the twenty-ninth capacitor C29 are respectively connected to the ground.

[0160] When the first control module sends a control signal to the second control module, the second Bluetooth chip can control the state of the second switch unit according to the control signal to control the second power supply to provide the second DC signal to the load.

[0161] The model of the second Bluetooth chip may be FR8008GP, or may be other models with equivalent functions.

[0162] The second Bluetooth antenna can receive and send Bluetooth data, for example, the second Bluetooth antenna can receive a control signal sent by the first control module. The twenty-fifth capacitor C25, the twenty-sixth capacitor C26 and the nineteenth resistor R19 can help achieve impedance matching between the antenna and the second Bluetooth chip. Ideal impedance matching can ensure that the signal is transmitted between the antenna and the circuit with minimal reflection and maximum transmission efficiency.

[0163] The second Bluetooth crystal oscillator can provide an accurate clock signal for the second Bluetooth chip, and an accurate clock signal is essential to ensure the accuracy and reliability of data transmission. The twenty-seventh capacitor C27 and the twenty-eighth capacitor C28 are used as matching capacitors to set the correct load capacitance for the second Bluetooth crystal oscillator, ensuring that the frequency output by the second Bluetooth crystal oscillator accurately matches the frequency required by the second Bluetooth chip, providing the best performance and the smallest frequency deviation.

[0164] The fourth inductor L4 is a power inductor of the DC-DC converter of the second Bluetooth chip, which can realize power storage and conversion. The twenty-ninth capacitor C29 and the fourth inductor L4 form a filter network, which can ensure that the second Bluetooth chip obtains a stable power supply.

[0165] like Fig.19As shown, the second control unit may also include a second serial port module, which is connected to the sixth end of the second Bluetooth chip, can receive serial port data transmitted by wire from the first control module, and convert the serial port data into a pulse width modulation (PWM) signal and output it to the second Bluetooth chip of the second control unit, thereby realizing wired control in addition to wireless reception of signals.

[0166] See also Fig. 20 , Fig. 20 is a schematic diagram of the structure of a second switch unit disclosed in an embodiment of the present application. Fig. 20 As shown, the second switch unit may include a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a thirtieth capacitor C30, a thirty-first capacitor C31, a fourth switch device Q4 and a fifth switch device Q5.

[0167] The first end of the fourth switch device Q4 is respectively connected to one end of the twentieth resistor R20 and one end of the twenty-first resistor R21, the second end of the fourth switch device Q4 is connected to one end of the twenty-second resistor R22, the first end of the fifth switch device Q5 is respectively connected to the other end of the twenty-second resistor R22, one end of the twenty-third resistor R23 and one end of the thirtieth capacitor C30, the second end of the fifth switch device Q5 is respectively connected to the other end of the twenty-third resistor R23, the other end of the thirtieth capacitor C30 and the second power supply, the other end of the twentieth resistor R20 is connected to the second control unit, the third end of the fifth switch device Q5 is respectively connected to one end of the thirty-first capacitor C31 and the load, and the third end of the fourth switch device Q4, the other end of the twenty-first resistor R21 and the other end of the thirty-first capacitor C31 are respectively connected to the ground.

[0168] The fourth switch device Q4 may be a transistor, or other devices for controlling circuit switches. Fig. 20 The description is made by taking the fourth switch device Q4 as an npn-type transistor as an example.

[0169] When the fourth switch device Q4 is a transistor, the base of the transistor is the first end of the fourth switch device Q4, the collector of the transistor is the second end of the fourth switch device Q4, and the emitter of the transistor is the third end of the fourth switch device Q4.

[0170] The fifth switch device Q5 may be a metal oxide semiconductor (MOS) tube, or other devices with equivalent functions. Fig. 20 The description is made by taking the fifth switch device Q5 as an N-type MOS tube as an example.

[0171] When the fifth switch device Q5 is a MOS tube, the gate of the MOS tube is the first end of the fifth switch device Q5, the source of the MOS tube is the second end of the fifth switch device Q5, and the drain of the MOS tube is the third end of the fifth switch device Q5.

[0172] The second control unit can control the state of the second switch unit according to whether it receives the control signal from the first control module, so as to control the second power supply to provide the second DC power signal to the load. When the second control unit receives the control signal from the first control module, the second control unit can send the switch control signal to the second switch unit; when the second control unit does not receive the control signal from the first control module, the second control unit does not send the switch control signal to the second switch unit.

[0173] In the case where the second switch unit receives the switch control signal sent by the second control unit, the switch control signal controls the fourth switch device Q4 to be turned on through the first end of the fourth switch device Q4, and the twentieth resistor R20 acts as a current limiting protection resistor to protect the fourth switch device Q4 from being burned by excessive current. The twenty-first resistor R21 can provide a bias voltage for the first end of the fourth switch device Q4, which can ensure that the fourth switch device Q4 is turned on based on the bias voltage. After the fourth switch device Q4 is turned on, the current can flow through the twenty-second resistor R22 and the twenty-third resistor R23 to charge the thirtieth capacitor C30. The thirtieth capacitor C30 can play a delay role. The thirtieth capacitor C30 cooperates with the twenty-second resistor R22 and the twenty-third resistor R23 to control the conduction time of the fifth switch device Q5 and prevent the fifth switch device Q5 from being damaged by instantaneous large current. After the thirtieth capacitor C30 is charged to a specific voltage, the fifth switch device Q5 starts to be turned on. After the fifth switch device Q5 is turned on, the second power supply can reach the output end of the switch module through the fifth switch device Q5 to supply power to the downstream light-emitting device or other loads.

[0174] When the second switch unit does not receive the switch control signal sent by the second control unit, the fourth switch device Q4 is turned off, the 30th capacitor C30 starts to discharge through the 22nd resistor R22 and the 23rd resistor R23, and the fifth switch device Q5 is also turned off, thereby cutting off the power supply.

[0175] It should be understood that the thirty-first capacitor C31 may include one capacitor or multiple capacitors. When the thirty-first capacitor C31 includes multiple capacitors, the thirty-first capacitor C31 may be formed by connecting the multiple capacitors in parallel.

[0176] The thirty-first capacitor C31 serves as a filter capacitor, which can smooth the voltage after switching and prevent the switching noise from affecting other components in the circuit.

[0177] See also Fig.21 , Fig.21 is a schematic diagram of the structure of another second control module disclosed in the embodiment of the present application. Fig.21 As shown, the second control module may further include a second conversion unit.

[0178] An input end of the second conversion unit is connected to a second power source, and an output end of the second conversion unit is connected to a second control unit.

[0179] In order to ensure the voltage compatibility between different components, the second conversion unit can convert the fifth DC signal into a second DC signal, and the voltage of the fifth DC signal is greater than the voltage of the second DC signal. Since different device components have different voltage requirements, too high or too low voltage will cause device damage or performance degradation. For example, the load connected to the second control unit requires a higher operating voltage, while the second control unit requires a lower operating voltage. Therefore, the second conversion unit is required to convert the fifth DC signal with a higher voltage provided by the second power supply into a second DC signal with a lower voltage.

[0180] See also Fig. 22 , Fig. 22 is a schematic diagram of the structure of a second conversion unit disclosed in an embodiment of the present application. Fig. 22 As shown, the second conversion unit may include a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a thirty-second capacitor C32, a thirty-third capacitor C33, a thirty-fourth capacitor C34, a fifth inductor L5 and a third conversion chip.

[0181] The first end of the third conversion chip is respectively connected to one end of the twenty-fourth resistor R24 ​​and the second power supply, the second end of the third conversion chip is respectively connected to the other end of the twenty-fourth resistor R24, one end of the twenty-fifth resistor R25 and one end of the thirty-second capacitor C32, the third end of the third conversion chip is respectively connected to one end of the thirty-third capacitor C33 and one end of the fifth inductor L5, the other end of the fifth inductor L5 is respectively connected to one end of the twenty-sixth resistor R26, one end of the thirty-fourth capacitor C34 and the second control unit, the fourth end of the third conversion chip is connected to the other end of the thirty-third capacitor C33, the fifth end of the third conversion chip is respectively connected to the other end of the twenty-sixth resistor R26, the other end of the thirty-fourth capacitor C34 and one end of the twenty-seventh resistor R27, the other end of the twenty-fifth resistor R25, the other end of the thirty-second capacitor C32 and the other end of the twenty-seventh resistor R27 are respectively connected to the ground.

[0182] The twenty-fourth resistor R24 ​​and the twenty-fifth resistor R25 can form a voltage divider, which can reduce the DC voltage at the power input terminal and reduce the DC voltage at the power input terminal to a predetermined lower level.

[0183] The thirty-second capacitor C32 and the twenty-fifth resistor R25 can form a filter network to help stabilize the output voltage.

[0184] The third conversion chip can convert the fifth DC signal into a second DC signal, and the voltage of the fifth DC signal is greater than the voltage of the second DC signal. Exemplarily, the third conversion chip can be a DC-to-DC step-down chip.

[0185] The twenty-sixth resistor R26, the twenty-seventh resistor R27 and the ground terminal can form a voltage divider, which can fine-tune the voltage to ensure that a suitable voltage can be output.

[0186] The twenty-sixth resistor R26 and the thirty-fourth capacitor C34 can form a filtering network, which can provide additional decoupling and noise filtering functions, thereby ensuring a stable output voltage.

[0187] See also Fig.23 , Fig.23 is a schematic diagram of the structure of another second conversion unit disclosed in the embodiment of the present application. Fig.23 The first conversion circuit and the second conversion unit shown are composed of Fig. 22 The second conversion unit shown is optimized. Fig.23 As shown, the second conversion unit may further include a twenty-eighth resistor R28.

[0188] One end of the twenty-eighth resistor R28 is connected to one end of the thirty-fourth capacitor C34, and the other end of the twenty-eighth resistor R28 is connected to the ground.

[0189] The twenty-eighth resistor R28 can help the thirty-fourth capacitor C34 to discharge quickly when the power is turned off or “powered down”, thereby eliminating residual charge in the circuit.

[0190] In some embodiments, the second conversion unit may further include a fifth voltage stabilizing circuit and a sixth voltage stabilizing circuit.

[0191] The fifth voltage stabilizing circuit is connected to the first end of the third conversion chip, and the fifth voltage stabilizing circuit can filter high-frequency noise in the third DC signal. The sixth voltage stabilizing circuit is connected to one end of the thirty-fourth capacitor C34, and the sixth voltage stabilizing circuit can filter high-frequency noise in the second DC signal.

[0192] The fifth voltage stabilization circuit may include a thirty-fifth capacitor C35 and a thirty-sixth capacitor C36.

[0193] One end of the thirty-fifth capacitor C35 is connected to the first end of the third conversion chip, the other end of the thirty-fifth capacitor C35 is grounded, and the thirty-sixth capacitor C36 is connected in parallel to the thirty-fifth capacitor C35.

[0194] Among them, the thirty-fifth capacitor C35 can be a capacitor with a capacitance value range of microfarad level to millifarad level, which can filter out low-frequency noise, smooth out the lower frequency components in the voltage ripple, and provide a larger energy storage for the circuit. The thirty-sixth capacitor C36 can be a capacitor with a capacitance value range of picofarad level to nanofarad level, which can filter out high-frequency noise, handle higher frequency spikes, and respond quickly to high-frequency changes.

[0195] It should be understood that the thirty-fifth capacitor C35 may include one capacitor or multiple capacitors. When the thirty-fifth capacitor C35 includes multiple capacitors, the thirty-fifth capacitor C35 may be formed by connecting the multiple capacitors in parallel. The thirty-sixth capacitor C36 may include one capacitor or multiple capacitors. When the thirty-sixth capacitor C36 includes multiple capacitors, the thirty-sixth capacitor C36 may be formed by connecting the multiple capacitors in parallel.

[0196] The sixth voltage stabilization circuit may include a thirty-seventh capacitor C37 and a thirty-eighth capacitor C38.

[0197] One end of the thirty-seventh capacitor C37 is connected to one end of the thirty-fourth capacitor C34, the other end of the thirty-seventh capacitor C37 is grounded, and the thirty-eighth capacitor C38 is connected in parallel to the thirty-seventh capacitor C37.

[0198] Among them, the thirty-seventh capacitor C37 can be a capacitor with a capacitance value range from microfarad level to millifarad level, which can filter out low-frequency noise, smooth the lower frequency components in the voltage ripple, and provide a larger energy storage for the circuit, thereby maintaining voltage stability during instantaneous load changes.

[0199] Among them, the thirty-eighth capacitor C38 can be a capacitor with a capacitance value range from the picofarad level to the nanofarad level, which can filter out high-frequency noise, can handle higher frequency spikes, and can quickly respond to high-frequency changes.

[0200] It should be understood that the thirty-seventh capacitor C37 may include one capacitor or multiple capacitors. In the case where the thirty-seventh capacitor C37 includes multiple capacitors, the thirty-seventh capacitor C37 may be formed by connecting the multiple capacitors in parallel. The thirty-eighth capacitor C38 may include one capacitor or multiple capacitors. In the case where the thirty-eighth capacitor C38 includes multiple capacitors, the thirty-eighth capacitor C38 may be formed by connecting the multiple capacitors in parallel.

[0201] See also Fig.24 , Fig.24 is a schematic diagram of the structure of another second control module disclosed in the embodiment of the present application. Fig.24 As shown, the second control module may further include a second starting unit.

[0202] An input end of the second startup unit is connected to the second power supply, and an output end of the second startup unit is connected to the second conversion unit and the second switch unit respectively.

[0203] The second starting unit can filter the overshoot voltage in the sixth direct current signal to obtain a fifth direct current signal.

[0204] See also Fig.25 , Fig.25 Schematic diagram of the structure of a second starting unit disclosed in the embodiment of the present application. Fig.25 As shown, the second startup unit may include a twenty-ninth resistor R29, a thirtieth resistor R30, a thirty-ninth capacitor C39, a fortieth capacitor C40, a third diode D3 and a sixth switch device Q6.

[0205] The first end of the sixth switch device Q6 is respectively connected to one end of the thirty-ninth capacitor C39, one end of the twenty-ninth resistor R29, the cathode of the third diode D3 and one end of the thirtieth resistor R30, the second end of the sixth switch device Q6 is respectively connected to the other end of the thirty-ninth capacitor C39, the other end of the twenty-ninth resistor R29 and the second power supply, the third end of the sixth switch device Q6 is respectively connected to one end of the fortieth capacitor C40, the second conversion unit and the second switch unit, the anode of the third diode D3, the other end of the thirtieth resistor R30 and the other end of the fortieth capacitor C40 are respectively connected to the ground.

[0206] The sixth switch device Q6 may be a MOS tube, or other devices with equivalent functions. Fig.25 The description is made by taking the sixth switch device Q6 as a MOS tube as an example.

[0207] When the sixth switch device Q6 is a MOS tube, the gate of the MOS tube is the first end of the sixth switch device Q6, the drain of the MOS tube is the second end of the sixth switch device Q6, and the source of the MOS tube is the third end of the sixth switch device Q6.

[0208] The thirty-ninth capacitor C39 may be a charging delay capacitor of the sixth switch device Q6.

[0209] The thirty-ninth capacitor C39 is used as a delay capacitor. After the circuit is powered on, the thirty-ninth capacitor C39 is charged through the twenty-ninth resistor R29 and the thirtieth resistor R30, so that the gate voltage of the sixth switch device Q6 gradually increases.

[0210] The twenty-ninth resistor R29 and the thirtieth resistor R30 can form a resistor divider, which can control the current flowing to the thirty-ninth capacitor C39, thereby controlling the charging rate of the thirty-ninth capacitor C39 and affecting the turn-on delay of the sixth switch device Q6.

[0211] The third diode D3 serves as a protection diode to protect the sixth switching device Q6 from being damaged.

[0212] The fortieth capacitor C40 can stabilize the source voltage of the sixth switch device Q6 and reduce noise and power supply voltage fluctuation.

[0213] When the second startup unit is powered on, the twenty-ninth resistor R29 and the thirtieth resistor R30 begin to charge the thirty-ninth capacitor C39, and the gate voltage of the sixth switch device Q6 gradually increases. Once the gate voltage reaches the threshold voltage of the sixth switch device Q6, the sixth switch device Q6 begins to turn on.

[0214] See also Fig.26 , Fig.26 is a schematic diagram of the structure of another second control module disclosed in the embodiment of the present application. Fig.26 As shown, the second control module may further include a second insurance unit.

[0215] The input end of the second insurance unit is connected to the second power supply, and the output end of the second insurance unit is connected to the second starting unit.

[0216] The second insurance unit may send the sixth DC signal to the second starting unit when the current of the sixth DC signal does not exceed the preset current.

[0217] See also Fig. 27 , Fig. 27 Schematic diagram of the structure of a second insurance unit disclosed in the embodiment of the present application. Fig. 27 As shown, the second insurance unit may include a thirty-first resistor R31, a forty-first capacitor C41 and a fourth diode D4.

[0218] One end of the thirty-first resistor R31 is connected to the second power supply, the other end of the thirty-first resistor R31 is respectively connected to the second starting unit, one end of the forty-first capacitor C41 and the cathode of the fourth diode D4, the anode of the fourth diode D4 and the other end of the forty-first capacitor C41 are respectively connected to the ground terminal

[0219] When the current flowing through the thirty-first resistor R31 exceeds the preset current, the thirty-first resistor R31 can disconnect the circuit, thereby protecting the back-end circuit from damage by excessive current and preventing possible damage caused by short circuit or overload.

[0220] Exemplarily, the thirty-first resistor R31 can disconnect the circuit when the current exceeds 5A.

[0221] The forty-first capacitor C41 serves as a filter capacitor, which can reduce high-frequency noise on the power line and prevent high-frequency interference signals from entering the power conversion circuit. It can absorb and isolate the peak voltage on the power line and improve the stability and purity of the power supply.

[0222] The fourth diode D4 may be a transient voltage suppressor (TVS) diode, which can clamp excessively high voltage in an instant and limit the voltage to a safe level, thereby preventing voltage spikes from causing damage to the circuit.

[0223] Exemplarily, the fourth diode D4 may be a 40V transient voltage suppression diode. When the voltage exceeds 40V, the fourth diode D4 may be quickly turned on to shunt the excess voltage to the ground line, thereby protecting the back-end circuit from being affected.

[0224] The embodiment of the present application discloses a lamp, including a light emitting device and a power supply device.

[0225] See also Fig.28 , Fig.28 Schematic diagram of the structure of a lamp disclosed in the embodiment of the present application. Fig.28 As shown, the lamp may include a load and a power supply device, and the load may be a light-emitting device, such as a light-emitting diode.

[0226] The detailed description of the power supply device may refer to the above description.

[0227] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A power supply device, characterized in that: It includes a first control module, a second control module, a first power supply and a second power supply, wherein: The first control module is respectively connected to the first power supply, the second control module and the load, and the second control module is respectively connected to the first control module, the second power supply and the load; The first control module is used to control the first power supply to provide a first DC signal to the load according to the state of the load, and determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load; The second control module is used for controlling the second power supply to provide a second DC signal to the load according to the control signal when the first control module sends a control signal to the second control module; The first control module includes a first control unit and a first switch unit, wherein: The first control unit is respectively connected to the first power supply, the second control module and the first switch unit, and the first switch unit is respectively connected to the first power supply and the load; The first control unit is used to control the state of the first switch unit according to the working state of the load, so as to control the first power supply to provide the first DC power signal to the load, and determine whether to send a control signal to the second control module according to the power of the first power supply and the working power of the load; The first control unit includes a first Bluetooth chip, a first Bluetooth antenna, a first Bluetooth crystal oscillator, a first resistor, a first inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a fifth capacitor, wherein: The first end of the first Bluetooth chip is respectively connected to one end of the first resistor and one end of the first capacitor, the other end of the first resistor is respectively connected to one end of the second capacitor and the first Bluetooth antenna, the second end of the first Bluetooth chip is respectively connected to one end of the third capacitor and the first end of the first Bluetooth crystal oscillator, the third end of the first Bluetooth chip is respectively connected to one end of the fourth capacitor and the second end of the first Bluetooth crystal oscillator, the fourth end of the first Bluetooth chip is connected to one end of the first inductor, the other end of the first inductor is respectively connected to the fifth end of the first Bluetooth chip and one end of the fifth capacitor, the other end of the first capacitor, the other end of the second capacitor, the other end of the third capacitor, the other end of the fourth capacitor, the third end and the fourth end of the first Bluetooth crystal oscillator, and the other end of the fifth capacitor are respectively connected to the ground; The first Bluetooth chip is used to control the state of the first switch unit according to the working state of the load, so as to control the first power supply to provide the first DC signal to the load; The first Bluetooth chip is further used to control whether the first Bluetooth antenna sends a control signal to the second control module according to the power of the first power supply and the working power of the load.

2. The power supply device according to claim 1, characterized in that: The first control module is specifically configured to control the first power supply to provide the first DC signal to the load when the load is in a working state.

3. The power supply device according to claim 1, characterized in that: The first control module is specifically configured to send a control signal to the second control module when the power of the first power supply does not meet the working power of the load.

4. The power supply device according to claim 1, characterized in that: The first switch unit includes a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth capacitor, a seventh capacitor, a first switch device and a second switch device, wherein: The first end of the first switching device is respectively connected to one end of the second resistor and one end of the third resistor, the second end of the first switching device is connected to one end of the fourth resistor, the first end of the second switching device is respectively connected to the other end of the fourth resistor, one end of the fifth resistor and one end of the sixth capacitor, the second end of the second switching device is respectively connected to the other end of the fifth resistor, the other end of the sixth capacitor and the first power supply, the other end of the second resistor is connected to the first control unit, the third end of the second switching device is respectively connected to one end of the seventh capacitor and the load, and the third end of the first switching device, the other end of the third resistor and the other end of the seventh capacitor are respectively connected to the ground.

5. The power supply device according to claim 1, characterized in that: The first control module further includes a first conversion unit, wherein: The first conversion unit is respectively connected to the first control unit, the first switch unit and the first power supply; The first conversion unit is used to convert a third DC signal into the first DC signal, and a voltage of the third DC signal is greater than a voltage of the first DC signal.

6. The power supply device according to claim 5, characterized in that: The first conversion unit includes a first conversion circuit and a second conversion circuit, wherein: The first conversion circuit is respectively connected to the first power supply, the first switch unit and the second conversion circuit, and the second conversion circuit is connected to the first control unit; The first conversion circuit is used to convert the third DC power signal into a seventh DC power signal, wherein a voltage of the third DC power signal is greater than a voltage of the seventh DC power signal; The second conversion circuit is used to convert the seventh DC signal into the first DC signal, and the voltage of the seventh DC signal is greater than the voltage of the first DC signal.

7. The power supply device according to claim 6, characterized in that: The first conversion circuit includes a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a second inductor and a first conversion chip, wherein: The first end of the first conversion chip is respectively connected to one end of the sixth resistor and the first power supply, the second end of the first conversion chip is respectively connected to the other end of the sixth resistor, one end of the seventh resistor and one end of the eighth capacitor, the third end of the first conversion chip is respectively connected to one end of the ninth capacitor and one end of the second inductor, the other end of the second inductor is respectively connected to one end of the eighth resistor, one end of the tenth capacitor and the second conversion circuit, the fourth end of the first conversion chip is connected to the other end of the ninth capacitor, the fifth end of the first conversion chip is respectively connected to the other end of the eighth resistor, the other end of the tenth capacitor and one end of the ninth resistor, and the other end of the seventh resistor, the other end of the eighth capacitor and the other end of the ninth resistor are respectively connected to the ground; The first conversion chip is used to convert the third direct current signal into the seventh direct current signal.

8. The power supply device according to claim 6, characterized in that: The second conversion circuit includes an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, a third inductor and a second conversion chip, wherein: The first end of the second conversion chip is respectively connected to one end of the eleventh resistor and the first conversion circuit, the second end of the second conversion chip is respectively connected to the other end of the eleventh resistor, one end of the twelfth resistor and one end of the fifteenth capacitor, the third end of the second conversion chip is respectively connected to one end of the sixteenth capacitor and one end of the third inductor, the other end of the third inductor is respectively connected to one end of the thirteenth resistor, one end of the seventeenth capacitor and the first control unit, the fourth end of the second conversion chip is connected to the other end of the sixteenth capacitor, the fifth end of the second conversion chip is respectively connected to the other end of the thirteenth resistor, the other end of the seventeenth capacitor and one end of the fourteenth resistor, the other end of the twelfth resistor, the other end of the fifteenth capacitor and the other end of the fourteenth resistor are respectively connected to the ground; The second conversion chip is used to convert the seventh direct current signal into the first direct current signal.

9. The power supply device according to claim 5, characterized in that: The first control module further includes a first starting unit, wherein: The first starting unit is respectively connected to the first power supply, the first conversion unit and the first switch unit; The first starting unit is used to filter the overshoot voltage in the fourth direct current signal to obtain the third direct current signal.

10. The power supply device according to claim 9, characterized in that: The first startup unit includes a sixteenth resistor, a seventeenth resistor, a twenty-second capacitor, a twenty-third capacitor, a first diode and a third switch device, wherein: The first end of the third switching device is respectively connected to one end of the twenty-second capacitor, one end of the sixteenth resistor, the cathode of the first diode and one end of the seventeenth resistor, the second end of the third switching device is respectively connected to the other end of the twenty-second capacitor, the other end of the sixteenth resistor and the first power supply, the third end of the third switching device is respectively connected to one end of the twenty-third capacitor, the first conversion unit and the first switching unit, the anode of the first diode, the other end of the seventeenth resistor and the other end of the twenty-third capacitor are respectively connected to the ground.

11. The power supply device according to claim 9, characterized in that: The first control module further includes a first insurance unit, wherein: The first insurance unit is respectively connected to the first power supply and the first starting unit; The first insurance unit is configured to send the fourth DC power signal to the first starting unit when the current of the fourth DC power signal does not exceed a preset current.

12. The power supply device according to claim 11, characterized in that: The first insurance unit includes an eighteenth resistor, a twenty-fourth capacitor and a second diode, wherein: One end of the eighteenth resistor is connected to the first power supply, the other end of the eighteenth resistor is respectively connected to the first starting unit, one end of the twenty-fourth capacitor and the cathode of the second diode, and the anode of the second diode and the other end of the twenty-fourth capacitor are respectively connected to the ground.

13. The power supply device according to claim 1, characterized in that: The second control module includes a second control unit and a second switch unit, wherein: The second control unit is respectively connected to the second power supply, the first control module and the second switch unit, and the second switch unit is respectively connected to the second power supply and the load; The second control unit is used to control the state of the second switch unit according to the control signal when the first control module sends a control signal to the second control module, so as to control the second power supply to provide the second DC signal to the load.

14. The power supply device according to claim 13, characterized in that: The second control module further includes a second conversion unit, wherein: The second conversion unit is connected to the second power supply and the second control unit respectively; The second conversion unit is used to convert the fifth DC power signal into the second DC power signal, and the voltage of the fifth DC power signal is greater than the voltage of the second DC power signal.

15. The power supply device according to claim 14, characterized in that: The second control module further includes a second starting unit, wherein: The second starting unit is respectively connected to the second power supply, the second conversion unit and the second switch unit; The second starting unit is used to filter the overshoot voltage in the sixth direct current signal to obtain the fifth direct current signal.

16. The power supply device according to claim 15, characterized in that: The second control module further includes a second insurance unit, wherein: The second insurance unit is respectively connected to the second power supply and the second starting unit; The second insurance unit is used to send the sixth DC power signal to the second starting unit when the current of the sixth DC power signal does not exceed a preset current.

17. A lamp, characterized in that: It comprises a load and a power supply device as described in any one of claims 1 to 16.

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