Control method and system for high-speed synchronous flash of flash lamp

Abstract

A control method and system for high-speed synchronous flash of a flash lamp, applied to a mobile terminal such as a camera. A plurality of capacitors of a flash lamp can sequentially and periodically discharge in respective first working cycles, so that the frequency of a flash lamp tube receiving voltages is multiplied, thereby effectively increasing the flash frequency of the flash lamp without improving the hardware performance of the capacitors, achieving the effect of high-speed synchronous flash of the flash lamp.

Description

Control method and control system for high-speed synchronous flash of flash lamp

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 2, 2024, with application number 202410152924.7 and application name “Control method and control system for high-speed synchronous flash of flash lamp”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of photographic equipment, and in particular to a method and a control system for controlling high-speed synchronous flashing of a flash lamp. Background Art

[0003] With the development of camera technology, high-speed photography has become an important research tool in many fields, including scientific experiments, sports competitions, and military tests. Through high-speed photography, people can capture instantaneous details and dynamics that are usually invisible to the naked eye, revealing subtle changes in the movement of objects.

[0004] With increasingly faster shutter speeds, the demand for high-speed sync flashes is also increasing. If the flash frequency cannot keep up with the shutter speed, the resulting photo will show alternating light and dark stripes. Existing high-speed sync flash control methods all drive the lamp to flash by periodically discharging a capacitor in a single control circuit. However, as flash frequency increases, the hardware performance of current capacitors is no longer sufficient to meet the higher flash frequency requirements. Frequent and rapid discharge of capacitors can damage the components themselves, affecting user experience. Summary of the Invention

[0005] The purpose of the present invention is to solve the technical problem that in the prior art, the control method of high-speed synchronous flash is to drive the lamp to flash by periodically discharging the capacitor in a single control circuit. As the flash frequency gradually increases, the hardware performance of the current capacitor has gradually failed to meet the requirements of higher-frequency flash. The frequent high-speed discharge of the capacitor will cause damage to the component itself, thereby affecting the normal use of the user.

[0006] To solve the above technical problems, the present invention provides a method for controlling high-speed synchronous flashing of a flash lamp, comprising the following steps:

[0007] The flash detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction;

[0008] The capacitor of the flashlight includes a first operating cycle in a discharging state and a second operating cycle in a charging state. The capacitor can enter the first and second operating cycles according to the driving instruction, and alternately enter a discharging period and a non-discharging period during the first operating cycle. The capacitor can discharge during the discharging period to output an operating voltage, and the discharge periods of the capacitors do not completely overlap. In addition, two or more capacitors in the flashlight can sequentially enter a discharging period and a non-discharging period when entering the first operating cycle according to the driving instruction and perform periodic discharge.

[0009] The flash tube of the flash lamp emits light under the driving of the working voltage output by the two or more capacitors.

[0010] In some embodiments of the present application, after the two or more capacitors output the operating voltage to emit light, the flash tube of the flash lamp determines whether a predetermined condition is met. When the predetermined condition is met, the capacitor enters the second working cycle and is in a charging state.

[0011] In some embodiments of the present application, before the step of periodically discharging multiple capacitors of the flash lamp in sequence according to the driving instruction, it also includes: the number of flash tubes of the flash lamp is more than one, and the capacitor outputs a starting voltage to all the flash tubes according to the driving instruction, so that all the flash tubes enter the starting state.

[0012] In some embodiments of the present application, each capacitor of the flash lamp can alternately enter the first working cycle and the second working cycle according to the trigger instruction; the first working cycles of multiple capacitors overlap, and the second working cycles of multiple capacitors overlap.

[0013] In some embodiments of the present application, the plurality of capacitors can enter the discharge period and the non-discharge period in sequence according to the driving instruction when entering the first working cycle and perform periodic discharge, and the discharge period of the next capacitor is located in the non-discharge period of the previous capacitor.

[0014] In some embodiments of the present application, in the step of the flash detecting the camera sending a trigger instruction, the step further includes: the flash detecting a high-speed shutter instruction or a low-speed shutter instruction.

[0015] In some embodiments of the present application, in the step of periodically discharging multiple capacitors of the flash lamp in sequence according to the driving instruction, it also includes: multiple capacitors periodically discharging in sequence according to the high-speed shutter instruction and the driving instruction; or, one of the capacitors of the flash lamp outputs an operating voltage to the flash lamp tube according to the low-speed shutter instruction and the driving instruction.

[0016] The present invention also provides a control system for high-speed synchronous flashing of a flash lamp, which includes:

[0017] a processor, configured to be electrically connected to the camera to receive a trigger instruction sent by the camera and generate a driving instruction according to the trigger instruction;

[0018] A plurality of controllers are provided, each of which is electrically connected to the processor and implements periodic conduction control according to the drive instruction;

[0019] A plurality of capacitors are provided, each of the capacitors is electrically connected to a controller, and according to the periodic conduction control of the controller, the plurality of capacitors are periodically discharged in sequence when entering a first working cycle; each of the capacitors includes a first working cycle in a discharging state and a second working cycle in a charging state, the first working cycle of the capacitor includes a discharging period and a non-discharging period, the discharge periods of the capacitors do not completely overlap, and the capacitors discharge during the discharge period and output a corresponding working voltage;

[0020] The flash tube is electrically connected to the capacitor through the controller to emit light according to the working voltage output by the capacitor.

[0021] In some embodiments of the present application, the capacitor outputs a startup voltage to the flash tube before the operating voltage according to the control of the controller, so that the flash tube enters a startup state.

[0022] In some embodiments of the present application, the plurality of capacitors can alternately enter the first working cycle and the second working cycle according to the conduction control of the controller to which they are electrically connected; the first working cycles of the plurality of capacitors overlap, and the second working cycles of the plurality of capacitors overlap.

[0023] In some embodiments of the present application, the plurality of capacitors are electrically connected to a flash tube to periodically output an operating voltage to the flash tube in sequence, and a discharge period of a next capacitor is within a non-discharge period of a previous capacitor.

[0024] In some embodiments of the present application, there are multiple flash tubes, and multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence; each capacitor can periodically output an operating voltage to the corresponding electrically connected flash tube, so that the multiple flash tubes emit light alternately, and the light-emitting periods of the multiple flash tubes overlap.

[0025] In some embodiments of the present application, the control system further includes a shutter selector, the shutter selector being electrically connected to the camera and the processor, and the shutter selector outputting a high-speed shutter command to the plurality of capacitors or selectively outputting a low-speed shutter command to one of the capacitors through the processor; the plurality of capacitors sequentially and periodically discharge according to the high-speed shutter command and the drive command, thereby outputting an operating voltage; and one of the capacitors outputting an operating voltage to the flash tube according to the low-speed shutter command and the drive command, thereby causing the flash tube to emit light;

[0026] There is one or more flash tubes. When there is one flash tube, the multiple capacitors are electrically connected to the one flash tube to periodically output an operating voltage to the flash tube in sequence according to the high-speed shutter instruction and the drive instruction. When there are multiple flash tubes, the multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence. Each capacitor can periodically output an operating voltage to the corresponding electrically connected flash tube according to the high-speed shutter instruction and the drive instruction, so that the multiple flash tubes emit light alternately.

[0027] In some embodiments of the present application, the controller can output control signals corresponding to different capacitors to control the corresponding capacitors to enter the second working cycle and be in a charging state.

[0028] In some embodiments of the present application, the control system further includes a charging circuit electrically connected to the controller, and the charging circuit is electrically connected to each of the capacitors; the controller outputs a control signal to the charging circuit corresponding to different capacitors, so that the charging circuit is connected to the corresponding capacitor and the capacitor enters the second working cycle and is in a charging state.

[0029] In some embodiments of the present application, there are two capacitors, namely a first capacitor and a second capacitor; the first capacitor and the second capacitor are both electrically connected to the flash tube, the first working cycle of the first capacitor and the first working cycle of the second capacitor both include a discharge period and a non-discharge period, and the discharge period of the second capacitor partially overlaps or completely overlaps with the non-discharge period of the first capacitor.

[0030] In some embodiments of the present application, the first capacitor includes multiple discharge periods and multiple non-discharge periods, and the second capacitor includes multiple discharge periods and multiple non-discharge periods; part of the discharge period of the second capacitor overlaps with part of the discharge period of the first capacitor.

[0031] In some embodiments of the present application, the discharge period of the second capacitor is the midpoint of the non-discharge period of the first capacitor, and the discharge period of the first capacitor is the midpoint of the non-discharge period of the second capacitor.

[0032] It can be seen from the above technical solution that the beneficial effects of the present invention are: the control method of the high-speed synchronous flash of the flash lamp and the control system of the high-speed synchronous flash of the flash lamp of the present invention are applied to mobile terminals such as cameras, which can realize that multiple capacitors of the flash lamp can be periodically discharged in sequence in the first working cycle, so that the voltage frequency received by the flash tube is doubled, and then the flash frequency of the flash lamp is effectively improved without improving the hardware performance of the capacitor, thereby obtaining the effect of high-speed synchronous flash of the flash lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a flow chart of a method for controlling high-speed synchronous flashing of a flash lamp according to the present invention.

[0034] FIG2 is a schematic diagram of the working waveforms after two output working voltages are combined using two capacitors in the control method example shown in FIG1 .

[0035] FIG3 is a schematic structural diagram of a first embodiment of a control system for high-speed synchronous flashing of a flash lamp according to the present invention.

[0036] FIG4 is a schematic diagram of operating waveforms after two output operating voltages are combined in the control system shown in FIG3 .

[0037] FIG5 is a schematic diagram of operating waveforms after combining multiple output operating voltages in an example of the control system shown in FIG3 .

[0038] FIG6 is a schematic diagram of operating waveforms of two output starting voltages in the control system shown in FIG3 .

[0039] FIG. 7 is a schematic structural diagram of a second embodiment of a control system for high-speed synchronous flashing of a flash lamp according to the present invention.

[0040] FIG8 is a schematic diagram of the operating waveforms of the two output starting voltages in the control system shown in FIG7 .

[0041] FIG9 is a schematic structural diagram of a third embodiment of a control system for high-speed synchronous flashing of a flash lamp according to the present invention.

[0042] The reference numerals are explained as follows: 10, processor; 20, capacitor; 21, first capacitor; 22, second capacitor; 30, flash tube; 31, first flash tube; 32, second flash tube; 40, controller; 50, shutter selector; 60, camera. DETAILED DESCRIPTION

[0043] Typical embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative rather than limiting.

[0044] In the description of this application, it should be understood that in the embodiments shown in the drawings, indications of directions or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions will also change accordingly.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0046] 1 , an embodiment of the present application provides a method for controlling high-speed synchronous flashing of a flash lamp, which includes the following steps:

[0047] Step S10, the flash detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction;

[0048] In step S20, the capacitors of the flashlight have a first operating cycle in a discharging state and a second operating cycle in a charging state. The capacitors can enter the first operating cycle and the second operating cycle according to a driving instruction, and alternately enter a discharging period and a non-discharging period during the first operating cycle. The capacitors can discharge and output an operating voltage during the discharging period, and the discharge periods of the capacitors do not completely overlap. Furthermore, two or more capacitors in the flashlight can sequentially enter a discharging period and a non-discharging period when entering the first operating cycle according to the driving instruction, thereby performing periodic discharge.

[0049] In step S30 , the flash tube of the flash lamp is driven by the operating voltage output by the two or more capacitors to emit light.

[0050] The control method of this embodiment is applied to mobile terminals such as cameras, and can enable multiple capacitors of the flash to be periodically discharged in sequence during the first working cycle, so as to double the voltage frequency received by the flash tube, thereby effectively increasing the flash frequency of the flash without improving the hardware performance of the capacitor, thereby achieving the effect of high-speed synchronous flash of the flash.

[0051] In this embodiment, before step S10 is performed, the multiple capacitors of the flash lamp are charged first. Specifically, the multiple capacitors can be charged separately by a boost charging circuit.

[0052] After the capacitor is fully charged, step S10 is performed, where the flash detects the trigger instruction sent by the camera and generates a driving instruction according to the trigger instruction.

[0053] After the flashlight generates a drive command, step S20 proceeds to periodically discharge the flashlight's multiple capacitors in accordance with the drive command. Each capacitor has a first operating cycle in which it is discharged and a second operating cycle in which it is charged. During the first operating cycle, the capacitor is in the discharged state, capable of outputting current to the flashlight tube, causing it to emit light. During the second operating cycle, the capacitor is in the charged state, capable of receiving an inflow of external current to store energy.

[0054] Each capacitor's first operating cycle includes a discharge period and a non-discharge period. During the discharge period, the capacitor can discharge and output a corresponding operating voltage. Each capacitor can enter the discharge period multiple times during the first operating cycle. Through multiple discharges of the capacitor within the first operating cycle, the flash lamp can produce a complete flash. A complete flash is generally composed of multiple rapid strobes. Because the intervals between strobes are short and indistinguishable to the naked eye, these multiple rapid strobes can create a seemingly continuous flash process.

[0055] The specific process of implementing stroboscopic light is as follows: the capacitor can alternately enter a discharge period and a non-discharge period during the first working cycle. During the discharge period, the capacitor can generate sufficient current to pass through the flash tube, causing it to emit light. When the capacitor's discharge time reaches a predetermined value, the capacitor enters a non-discharge period; and when the non-discharge time reaches a predetermined value, the capacitor re-enters the discharge period.

[0056] In this way, when the capacitor alternately enters the discharge period and the non-discharge period, the flash tube will flash from bright to dark, thereby achieving rapid strobe.

[0057] In this application, when the rapid strobe light reaches a predetermined condition, the capacitor stops discharging and enters a second operating cycle for charging. Specifically, after the flash tube of the flashlight emits light at an operating voltage outputted by two or more capacitors, it determines whether the predetermined condition has been met. If the predetermined condition has been met, the capacitor enters the second operating cycle and enters a charging state.

[0058] The predetermined conditions may include: reaching a predetermined total discharge time, a total number of flashes reaching a predetermined number, the charge of the capacitor dropping to a predetermined value, the voltage across the capacitor dropping below the cut-off voltage of the flash, and the like.

[0059] Each capacitor in the flashlight can enter a first operating cycle and a second operating cycle according to a driving instruction, and alternately enter a discharge period and a non-discharge period during the first operating cycle. Two or more capacitors in the flashlight can sequentially enter a discharge period and a non-discharge period when entering the first operating cycle according to a driving instruction, thereby performing periodic discharge.

[0060] In step S20, the flashlight may include two or more capacitors. When the flashlight includes two capacitors, the two capacitors are a first capacitor and a second capacitor. The first capacitor and the second capacitor can be periodically discharged in sequence according to a driving instruction. That is, when the first capacitor and the second capacitor enter a first working cycle according to the driving instruction, they can enter a discharging period and a non-discharging period in sequence.

[0061] As shown in FIG2 , in this embodiment, the first capacitor includes a first operating cycle in a discharging state and a second operating cycle in a charging state, and the second capacitor includes a first operating cycle in a discharging state and a second operating cycle in a charging state. The first operating cycle of the first capacitor and the first operating cycle of the second capacitor both include a discharging period and a non-discharging period.

[0062] In some examples, the first capacitor can alternately enter a first operating cycle and a second operating cycle upon receiving a trigger instruction, and the second capacitor can alternately enter a first operating cycle and a second operating cycle upon receiving a trigger instruction. Furthermore, the first operating cycle of the first capacitor overlaps with the first operating cycle of the second capacitor, and the second operating cycle of the first capacitor overlaps with the second operating cycle of the second capacitor.

[0063] In this example, when the first and second capacitors receive a trigger instruction and enter a first operating cycle, the discharge period of the second capacitor partially or completely overlaps with the non-discharge period of the first capacitor. This configuration allows the first and second capacitors to sequentially enter a discharge period and a non-discharge period during the first operating cycle, performing periodic discharges. This alternately outputs operating voltages to the flash tube, increasing the flash frequency of the flash.

[0064] In other examples of this embodiment, the first operating cycle of the first capacitor may include multiple discharge periods and multiple non-discharge periods, the first operating cycle of the second capacitor may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor overlaps with a partial discharge period of the first capacitor.

[0065] Furthermore, in this embodiment, the discharge period of the second capacitor can be set to the midpoint of the non-discharge period of the first capacitor, and the discharge period of the first capacitor can be set to the midpoint of the non-discharge period of the second capacitor. This arrangement can make the waveform of the superimposed operating voltage output by the first and second capacitors more uniform, thereby making the brightness of the flashlight more uniform.

[0066] When the flash lamp includes multiple capacitors, in step S20, the multiple capacitors are periodically discharged in sequence according to the driving instruction, and the waveforms of the operating voltages output by the multiple capacitors complement each other.

[0067] Specifically, in each first working cycle, multiple capacitors form multiple working voltage outputs during the discharge period. That is, when the discharge period of the first channel ends, the second channel will immediately enter the discharge period, and until the discharge period of the last channel ends, the first channel will re-enter the discharge period. This ensures that the flash tube always has the input of working voltage, thereby ensuring that the voltage frequency received by the flash tube is effectively doubled, increasing the flash frequency of the flash, and thus achieving the effect of high-speed synchronous flash of the flash.

[0068] In step S30, the flash tube of the flash lamp emits light according to the operating voltage. The flash lamp can be provided with only one flash tube, or can be provided with multiple flash tubes corresponding to multiple capacitors.

[0069] When a flashlight is equipped with a flash tube, multiple capacitors are electrically connected to the flash tube to periodically output an operating voltage to the flash tube. The discharge period of each capacitor is within the non-discharge period of the previous capacitor, ensuring that the voltage frequency of the flash tube is doubled, thereby increasing the flash frequency of the flashlight.

[0070] When the flash lamp is provided with multiple flash tubes, multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence; each capacitor can periodically output an operating voltage to the corresponding electrically connected flash lamp, so that the multiple flash tubes emit light alternately.

[0071] More than two flash tubes are provided, and periodic voltages are input to the connected flash tubes in turn through more than two capacitors, so that the flash tubes can flash in turn, thereby multiplying the flash output frequency of the entire flash. Therefore, the flash frequency of the flash can be effectively increased without improving the hardware performance of the capacitor. In addition, the flash tubes can be prevented from being damaged due to high-frequency operation. While effectively protecting the flash tubes, the demand for high-speed synchronous flash with increasingly higher frequency is met.

[0072] In this embodiment, after completing step S10 and before proceeding to step S20 , the control method further includes: the capacitor outputting a starting voltage to the flash tube according to the driving instruction, so that the flash tube enters a starting state.

[0073] Specifically, when there is only one flash tube, a starting voltage can be output to the flash tube through any capacitor. When there are multiple flash tubes, each capacitor outputs a starting voltage to the corresponding connected flash tube according to the driving instruction to start the corresponding flash tube.

[0074] Furthermore, in step S10 of this embodiment, the flash may further include detecting a high-speed shutter command or a low-speed shutter command. In step S20, the flash may further include periodically discharging the plurality of capacitors in sequence according to the high-speed shutter command and the drive command, or outputting an operating voltage to the flash according to the low-speed shutter command and the drive command.

[0075] Through the high-speed shutter command and the low-speed shutter command, the driving mode of the flash can be adjusted, and high-speed flash and low-speed flash can be selected, thereby expanding the application range of the product.

[0076] In addition to the above-mentioned control method for high-speed synchronous flash of a flash lamp, the present application also provides a control system for high-speed synchronous flash of a flash lamp, which includes a processor, a capacitor, and a flash lamp tube.

[0077] Specifically, the processor is used to be electrically connected to the camera to receive a trigger instruction sent by the camera and generate a drive instruction based on the trigger instruction. There are multiple controllers, each of which is electrically connected to the processor and implements periodic conduction control based on the drive instruction. There are multiple capacitors, each of which is electrically connected to a controller, and according to the periodic conduction control of the controller, multiple capacitors are periodically discharged in sequence; each capacitor includes a first working cycle in a discharged state and a second working cycle in a charged state. The first working cycle of the capacitor includes a discharge period and a non-discharge period. The discharge periods of each capacitor do not completely overlap. The capacitor discharges during the discharge period and outputs a corresponding working voltage. The flash tube is electrically connected to the capacitor through the controller to emit light according to the working voltage output by the capacitor.

[0078] Each capacitor has a first operating cycle in which it is in a discharging state and a second operating cycle in which it is in a charging state. During the first operating cycle, the capacitor is in the discharging state, capable of outputting current to the flash tube to cause it to emit light. During the second operating cycle, the capacitor is in the charging state, capable of receiving an inflow of external current to charge and store energy. Each of the multiple capacitors can alternate between a discharging period and a non-discharging period during the first operating cycle, based on the conduction control of a controller to which they are electrically connected.

[0079] During the discharge phase, the capacitor can generate enough current to flow through the flash tube, causing it to emit light. As the capacitor discharges, its voltage gradually decreases and enters the non-discharge phase. At this time, the current flowing through the flash tube also gradually decreases. When the voltage across the capacitor drops below the flash tube's cutoff voltage, the flash tube stops emitting light.

[0080] In this way, when the capacitor alternately enters the discharge period and the non-discharge period, the flash tube will flash from bright to dark, thereby achieving flash.

[0081] Furthermore, the multiple capacitors can alternately enter a first operating cycle and a second operating cycle based on the conduction control of the controller to which they are electrically connected. The first operating cycles of the multiple capacitors overlap, and the second operating cycles of the multiple capacitors overlap. During the first operating cycle, the multiple capacitors can sequentially enter a discharge period and a non-discharge period, performing periodic discharges. This alternately outputs an operating voltage to the flash tube, thereby increasing the flash frequency of the flash.

[0082] In some embodiments of the present application, the controller can output control signals corresponding to different capacitors to control the corresponding capacitors to enter a second working cycle and be in a charging state.

[0083] In which, the control system may include a charging circuit electrically connected to the controller, and the charging circuit is electrically connected to each capacitor; the controller outputs a control signal to the charging circuit corresponding to different capacitors, so that the charging circuit is connected to the corresponding capacitor and the capacitor enters the second working cycle and is in a charging state.

[0084] The control system is described below through different embodiments.

[0085] Example 1 of a control system for high-speed synchronous flashing of a flash lamp

[0086] Referring to FIG3 , in this embodiment, the processor 10 is configured to be electrically connected to the camera 60 to receive a trigger instruction sent by the camera 60 and generate a drive instruction based on the trigger instruction. A plurality of controllers 40 are provided, each of which is electrically connected to the processor 10 and implements periodic conduction control based on the drive instruction. A plurality of capacitors 20 are provided, each of which is electrically connected to a controller 40, and based on the periodic conduction control of the controller 40, the plurality of capacitors 20 are periodically discharged in sequence. The first operating cycle of each capacitor 20 includes a discharge period and a non-discharge period, and the capacitor 20 discharges during the discharge period and outputs a corresponding operating voltage. The flash tube 30 is electrically connected to the capacitor 20 via the controller 40 to emit light based on the operating voltage output by the capacitor 20.

[0087] In this embodiment, there is one flash tube 30 , and a plurality of capacitors 20 are electrically connected to the flash tube 30 to periodically output an operating voltage to the flash tube 30 in sequence. The waveforms of the operating voltages output by the plurality of capacitors 20 are complementary.

[0088] In this embodiment, the control system further includes multiple controllers 40, and each capacitor 20 is electrically connected to the processor 10 via a controller 40. When the processor 10 sends an on signal to the controller 40, the voltage of the capacitor 20 can be directly output to the flash tube 30, generating a flash. When the processor 10 sends an off signal to the controller 40, the capacitor 20 is disconnected from the flash tube 30, and the flash tube 30 does not emit light.

[0089] In this embodiment, two capacitors 20 are provided, namely a first capacitor 21 and a second capacitor 22. Both the first capacitor 21 and the second capacitor 22 are electrically connected to the flash tube 30. The first operating cycle of the first capacitor 21 and the first operating cycle of the second capacitor 22 both include a discharge period and a non-discharge period. The discharge period of the second capacitor 22 partially or completely overlaps with the non-discharge period of the first capacitor 21.

[0090] Referring to Figure 4, the combined operating waveform of the operating voltage outputs from first capacitor 21 and second capacitor 22 shows that first capacitor 21 represents the first output, while second capacitor 22 represents the second output. In this embodiment, first capacitor 21 and second capacitor 22 can alternately output operating voltages to flash tube 30, increasing the flash frequency and enabling high-speed flashing.

[0091] In other examples of this embodiment, the first operating cycle of the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the first operating cycle of the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor 22 overlaps with a partial discharge period of the first capacitor 21.

[0092] In addition, in this embodiment, the discharge period of the second capacitor 22 can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This arrangement can make the waveform of the superimposed operating voltage output by the first capacitor 21 and the second capacitor 22 more uniform, making the brightness of the flash more uniform.

[0093] Furthermore, in this embodiment, more than two capacitors 20 may be provided, that is, a plurality of capacitors 20 may be provided, and each of the plurality of capacitors 20 is electrically connected to the flash tube 30. The plurality of capacitors 20 are periodically discharged in sequence according to the driving instruction, and the discharge period of the next capacitor 20 is within the non-discharge period of the previous capacitor 20.

[0094] 5 , it can be seen from the working waveforms after the multiple output working voltages of the multiple capacitors 20 are combined. Taking four capacitors 20 as an example, the first capacitor 21 is the first output, the second capacitor 22 is the second output, the third capacitor 20 is the third output, and the fourth capacitor 20 is the fourth output.

[0095] Specifically, the plurality of capacitors 20 form a plurality of working voltage outputs during the discharge period. That is, when the discharge period of the first channel ends, the second channel will immediately enter the discharge period, and until the discharge period of the last channel ends, the first channel will re-enter the discharge period. This ensures that the flash tube 30 is always continuously supplied with working voltage, thereby effectively doubling the voltage frequency received by the flash tube 30, increasing the flash frequency of the flash, and thus achieving the effect of high-speed synchronous flashing of the flash.

[0096] Furthermore, in this embodiment, any one of the capacitors 20 can output a startup voltage to the flash tube 30 prior to the operating voltage under the control of the controller 40, causing the flash tube 30 to enter an activated state. Referring to Figure 6 , the operating waveform of the startup voltage output by the first capacitor 21 indicates that the first capacitor 21 functions as the main output, while the second capacitor 22 functions as the branch output. In other words, in this embodiment, the first capacitor 21 is selected to output the startup voltage to the flash tube 30 prior to the operating voltage in response to a drive command. In this embodiment, the control system may also include a charging circuit for charging the capacitors 20.

[0097] When the control system for the high-speed synchronous flash of the flash lamp shown in FIG3 is in operation, the first capacitor 21 and the second capacitor 22 are charged respectively through the charging circuit.

[0098] After the first and second capacitors 21 and 22 are fully charged, the flashlight processor 10 detects whether it has received a trigger command from the shutter of the camera 60. Upon receiving the trigger command from the camera 60, the processor 10 sequentially drives the first and second capacitors 21 and 22 to periodically discharge the charge into the flash tube 30. The flash tube 30 then emits light based on the operating voltages output by the first and second capacitors 21 and 22.

[0099] In this embodiment, two or more capacitors 20 input periodic voltages to the flash tube 30 in turn, so that the voltage frequency actually received by the flash tube 30 is doubled. This effectively increases the flash frequency of the flash without improving the hardware performance of the capacitor 20, thereby meeting the current demand for high-speed synchronous flash with increasingly higher frequencies.

[0100] Example 2 of a control system for high-speed synchronous flashing of a flash lamp

[0101] Referring to FIG. 7 , in this embodiment, the processor 10 is electrically connected to the camera 60 to receive a trigger command sent by the camera 60 and generate a drive command based on the trigger command. Multiple capacitors 20 are provided, each of which is electrically connected to a controller 40. The controller 40 periodically controls the periodic discharge of the multiple capacitors 20. When the processor 10 sends an on signal to the controller 40, the voltage of the capacitor 20 can be directly output to the flash tube 30, generating a flash. When the processor 10 sends an off signal to the controller 40, the capacitor 20 is disconnected from the flash tube 30, and the flash tube 30 does not emit light.

[0102] The first operating cycle of each capacitor 20 includes a discharge period and a non-discharge period. The capacitor 20 discharges during the discharge period and outputs a corresponding operating voltage. The flash tube 30 is electrically connected to the capacitor 20 to emit light according to the operating voltage output by the capacitor 20.

[0103] In this embodiment, multiple flash tubes 30 are provided, and multiple capacitors 20 are electrically connected to the multiple flash tubes 30 in a one-to-one correspondence. Each capacitor 20 can periodically output an operating voltage to the corresponding electrically connected flash tube, causing the multiple flash tubes 30 to emit light alternately, with the lighting periods of the multiple flash tubes 30 overlapping.

[0104] In this embodiment, the control system further includes a plurality of controllers 40, and each capacitor 20 is electrically connected to the processor 10 via a controller 40. In this embodiment, two capacitors 20 are provided, namely a first capacitor 21 and a second capacitor 22. The first capacitor 21 and the second capacitor 22 are each electrically connected to a flash tube 30, and the two flash tubes 30 are respectively a first flash tube 31 and a second flash tube 32. The first operating cycle of the first capacitor 21 and the first operating cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21.

[0105] The discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21. The first capacitor 21 can periodically output an operating voltage to the first flash tube 31, and the second capacitor 22 can periodically output an operating voltage to the second flash tube 32, so that the first flash tube 31 and the second flash tube 32 emit light alternately.

[0106] In other examples of this embodiment, the first operating cycle of the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the first operating cycle of the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor 22 overlaps with a partial discharge period of the first capacitor 21.

[0107] In addition, in this embodiment, the discharge period of the second capacitor 22 can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This arrangement can make the waveform of the superimposed operating voltage output by the first capacitor 21 and the second capacitor 22 more uniform, making the brightness of the flash more uniform.

[0108] Furthermore, in this embodiment, more than two capacitors 20 can be provided, i.e., multiple capacitors 20 can be provided, each of which is electrically connected to the flash tube 30. The multiple capacitors 20 sequentially and periodically discharge according to the driving instructions, and the waveforms of the operating voltages output by the multiple capacitors 20 complement each other. That is, when the discharge period of the first channel ends, the second channel immediately enters its discharge period, and until the discharge period of the last channel ends, the first channel re-enters its discharge period.

[0109] Furthermore, each capacitor 20 of this embodiment can output a starting voltage to a corresponding flash tube 30 under the control of the controller 40, causing the corresponding flash tube 30 to enter an activated state. The input timing of the starting voltages to each flash tube 30 may or may not overlap. As shown in FIG8 , the operating waveforms of the starting voltages output by the first capacitor 21 and the second capacitor 22 indicate that the first capacitor 21 serves as the main output, while the second capacitor 22 serves as the branch output. The first capacitor 21 outputs the starting voltage to the first flash tube 31 prior to the operating voltage in response to a drive instruction, while the second capacitor 22 outputs the starting voltage to the second flash tube 32 prior to the operating voltage in response to a drive instruction.

[0110] In this embodiment, the control system may further include a boost charging circuit, and the charging circuit is used to charge the capacitor 20 .

[0111] When the control system for the high-speed synchronous flash of the flash lamp shown in FIG7 is in operation, the first capacitor 21 and the second capacitor 22 are charged respectively through the charging circuit.

[0112] After the first capacitor 21 and the second capacitor 22 are fully charged, the flashlight processor 10 detects whether it has received a trigger command from the shutter of the camera 60. Upon receiving the trigger command from the camera 60, the processor 10 periodically outputs an operating voltage to the first flash tube 31 and the second capacitor 22 periodically outputs an operating voltage to the second flash tube 32, causing the first flash tube 31 and the second flash tube 32 to emit light alternately.

[0113] In this embodiment, the control system is provided with more than two flash tubes 30, and a periodic voltage is input to the respectively connected flash tubes 30 in turn through more than two capacitors 20, so that the flash tubes 30 can flash in turn, thereby multiplying the flash output frequency of the entire flash. Therefore, without improving the hardware performance of the capacitor 20, the flash frequency of the flash can be effectively increased, and damage to the flash tubes 30 caused by high-frequency operation can be avoided. While effectively protecting the flash tubes 30, the demand for high-speed synchronous flashing with increasingly higher frequencies is met.

[0114] Example 3 of a control system for high-speed synchronous flashing of a flash lamp

[0115] Referring to FIG. 9 , in this embodiment, the processor 10 is configured to be electrically connected to the camera 60 to receive a trigger command sent by the camera 60 and generate a drive command based on the trigger command. Multiple capacitors 20 are provided, each of which is electrically connected to a controller 40. The controller 40 periodically controls the periodic discharge of the multiple capacitors 20. When the processor 10 sends an on signal to the controller 40, the voltage of the capacitor 20 can be directly output to the flash tube 30, generating a flash. When the processor 10 sends an off signal to the controller 40, the capacitor 20 is disconnected from the flash tube 30, and the flash tube 30 does not emit light.

[0116] The first operating cycle of each capacitor 20 includes a discharge period and a non-discharge period. The capacitor 20 discharges during the discharge period and outputs a corresponding operating voltage. The flash tube 30 is electrically connected to the capacitor 20 to emit light according to the operating voltage output by the capacitor 20.

[0117] The control system of this embodiment further includes a shutter selector 50 , which is electrically connected to the camera 60 and the processor 10 . The shutter selector 50 outputs a high-speed shutter command to the plurality of capacitors 20 through the processor 10 or selectively outputs a low-speed shutter command to one of the capacitors 20 .

[0118] Multiple capacitors 20 periodically discharge in response to high-speed shutter commands and drive commands, thereby outputting operating voltages to achieve high-speed flashing of the flash. One of the capacitors 20 outputs operating voltage to the flash in response to low-speed shutter commands and drive commands, causing the flash tube 30 to emit light, ensuring regular flashing of the flash.

[0119] In this embodiment, there is one flash tube 30 , and each of the plurality of capacitors 20 is electrically connected to one flash tube 30 to periodically output an operating voltage to the flash tube 30 in sequence according to a high-speed shutter instruction and a driving instruction.

[0120] In other examples of this embodiment, there may be multiple flash tubes 30, and multiple capacitors 20 are electrically connected to the multiple flash tubes 30 in a one-to-one correspondence. Each capacitor 20 can periodically output an operating voltage to the corresponding electrically connected flash tube 30 according to a high-speed shutter instruction and a driving instruction, so that the multiple flash tubes 30 emit light alternately.

[0121] In this embodiment, the control system further includes a plurality of controllers 40, and each capacitor 20 is electrically connected to the processor 10 via a controller 40. In this embodiment, there are two capacitors 20, namely a first capacitor 21 and a second capacitor 22.

[0122] In this embodiment, two capacitors 20 are provided, namely a first capacitor 21 and a second capacitor 22. The first capacitor 21 and the second capacitor 22 are each electrically connected to a flash tube 30, and the two flash tubes 30 are respectively the first flash tube 31 and the second flash tube 32. The first operating cycle of the first capacitor 21 and the first operating cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially or completely overlaps with the non-discharge period of the first capacitor 21.

[0123] The first capacitor 21 can periodically output an operating voltage to the first flash tube 31 , and the second capacitor 22 can periodically output an operating voltage to the second flash tube 32 , so that the first flash tube 31 and the second flash tube 32 emit light alternately.

[0124] In other examples of this embodiment, the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and some discharge periods of the second capacitor 22 overlap with some discharge periods of the first capacitor 21.

[0125] In addition, in this embodiment, the discharge period of the second capacitor 22 can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This arrangement can make the waveform of the superimposed operating voltage output by the first capacitor 21 and the second capacitor 22 more uniform, making the brightness of the flash more uniform.

[0126] Furthermore, in this embodiment, more than two capacitors 20 can be provided, i.e., multiple capacitors 20 can be provided, each of which is electrically connected to the flash tube 30. The multiple capacitors 20 sequentially and periodically discharge according to the driving instructions, and the waveforms of the operating voltages output by the multiple capacitors 20 complement each other. That is, when the discharge period of the first channel ends, the second channel immediately enters its discharge period, and until the discharge period of the last channel ends, the first channel re-enters its discharge period.

[0127] Furthermore, each capacitor 20 of this embodiment can output a startup voltage to the corresponding flash tube 30 under the control of the controller 40, causing the corresponding flash tube 30 to enter an activated state. The timing of the startup voltage input to each flash tube 30 may or may not overlap. In this embodiment, the control system may further include a charging circuit for charging the capacitor 20.

[0128] In other examples of this embodiment, a single flash tube 30 is provided, and both the first capacitor 21 and the second capacitor 22 are electrically connected to the flash tube 30. Multiple capacitors 20 are electrically connected to the flash tube 30 to periodically output an operating voltage to the flash tube 30 in sequence according to the high-speed shutter command and the drive command.

[0129] The first operating cycle of the first capacitor 21 and the first operating cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially or completely overlaps with the non-discharge period of the first capacitor 21. In this embodiment, the first capacitor 21 and the second capacitor 22 can alternately output an operating voltage to the flash tube 30, thereby increasing the flash frequency of the flash and achieving high-speed flashing of the flash.

[0130] In other examples of this embodiment, the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and some discharge periods of the second capacitor 22 overlap with some discharge periods of the first capacitor 21.

[0131] In addition, in this embodiment, the discharge period of the second capacitor 22 can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This arrangement can make the waveform of the superimposed operating voltage output by the first capacitor 21 and the second capacitor 22 more uniform, making the brightness of the flash more uniform.

[0132] Furthermore, in this embodiment, more than two capacitors 20 can be provided, i.e., multiple capacitors 20 are electrically connected to the flash tube 30. The multiple capacitors 20 are periodically discharged in sequence according to the driving instruction, and the waveforms of the working voltages output by the multiple capacitors 20 complement each other.

[0133] Specifically, the plurality of capacitors 20 form a plurality of working voltage outputs during the discharge period. That is, when the discharge period of the first channel ends, the second channel will immediately enter the discharge period, and until the discharge period of the last channel ends, the first channel will re-enter the discharge period. This ensures that the flash tube 30 is always continuously supplied with working voltage, thereby effectively doubling the voltage frequency received by the flash tube 30, increasing the flash frequency of the flash, and thus achieving the effect of high-speed synchronous flashing of the flash.

[0134] In addition, any capacitor 20 of this embodiment can output a starting voltage to the flash tube 30 under the control of the controller 40, so that the flash tube 30 enters the starting state. In this embodiment, the control system can also include a charging circuit for charging the capacitor 20.

[0135] When the control system for the high-speed synchronous flash of the flash lamp shown in FIG9 is in operation, the first capacitor 21 and the second capacitor 22 are charged respectively through the charging circuit.

[0136] After the first capacitor 21 and the second capacitor 22 are fully charged, the processor 10 of the flashlight detects a high-speed shutter command or a low-speed shutter command. After the processor 10 receives the high-speed shutter command and the trigger command from the camera 60, the first capacitor 21 can periodically output an operating voltage to the first flash tube 31, and the second capacitor 22 can periodically output an operating voltage to the second flash tube 32, so that the first flash tube 31 and the second flash tube 32 alternately emit light. After the processor 10 receives the low-speed shutter command and the trigger command from the camera 60, the first capacitor 21 or the second capacitor 22 enters a first operating cycle, that is, the first capacitor 21 outputs an operating voltage to the first flash tube 31 according to the low-speed shutter command and the drive command, so that the first flash tube 31 emits light; or the second capacitor 22 outputs an operating voltage to the first flash tube 31 according to the low-speed shutter command and the drive command, so that the second flash tube 32 emits light.

[0137] Through the high-speed shutter command and the low-speed shutter command, the driving mode of the flash can be adjusted, and high-speed flash and low-speed flash can be selected, thereby expanding the application range of the product.

[0138] Regarding the technical solution of the present application, the control method for high-speed synchronous flash of the flash and the control system for high-speed synchronous flash of the flash are applied to mobile terminals such as cameras, which can enable multiple capacitors of the flash to be periodically discharged in sequence during the first working cycle, so that the voltage frequency received by the flash tube is doubled, and thus the flash frequency of the flash can be effectively increased without improving the hardware performance of the capacitor, thereby obtaining the effect of high-speed synchronous flash of the flash.

[0139] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are intended to be illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. All changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A method for controlling high-speed synchronous flashing of a flash lamp, characterized in that: The steps include: The flash detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction; The capacitor of the flashlight includes a first operating cycle in a discharging state and a second operating cycle in a charging state. The capacitor can enter the first and second operating cycles according to the driving instruction, and alternately enter a discharging period and a non-discharging period during the first operating cycle. The capacitor can discharge during the discharging period to output an operating voltage, and the discharge periods of the capacitors do not completely overlap. In addition, two or more capacitors in the flashlight can sequentially enter a discharging period and a non-discharging period when entering the first operating cycle according to the driving instruction and perform periodic discharge. The flash tube of the flash lamp emits light under the driving of the working voltage output by the two or more capacitors.

2. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: After the two or more capacitors output the working voltage to emit light, the flash tube of the flash lamp determines whether a predetermined condition is met; when the predetermined condition is met, the capacitor enters the second working cycle and is in a charging state.

3. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: Before the step of causing the multiple capacitors of the flash lamp to discharge periodically in sequence according to the driving instruction, the method further includes: the flash lamp has more than one flash tube, and the capacitor outputs a starting voltage to all the flash tubes according to the driving instruction, so that all the flash tubes enter a starting state.

4. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, wherein: Each capacitor of the flash lamp can alternately enter the first working cycle and the second working cycle according to the trigger instruction; the first working cycles of multiple capacitors overlap, and the second working cycles of multiple capacitors overlap.

5. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, wherein: The plurality of capacitors can sequentially enter a discharge period and a non-discharge period according to the driving instruction when entering the first working cycle and perform periodic discharge, and the discharge period of the next capacitor is located in the non-discharge period of the previous capacitor.

6. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, wherein: In the step of the flash detecting the camera sending a trigger instruction, the step further includes: the flash detecting a high-speed shutter instruction or a low-speed shutter instruction.

7. The method for controlling high-speed synchronous flash of a flash lamp according to claim 6, characterized in that: In the step of periodically discharging multiple capacitors of the flash lamp in sequence according to the driving instruction, it also includes: multiple capacitors periodically discharging in sequence according to the high-speed shutter instruction and the driving instruction; or, one of the capacitors of the flash lamp outputs an operating voltage to the flash lamp tube according to the low-speed shutter instruction and the driving instruction.

8. A control system for high-speed synchronous flashing of a flash lamp, characterized in that: include: a processor, configured to be electrically connected to the camera to receive a trigger instruction sent by the camera and generate a driving instruction according to the trigger instruction; A plurality of controllers are provided, each of which is electrically connected to the processor and implements periodic conduction control according to the drive instruction; A plurality of capacitors are provided, each of the capacitors is electrically connected to a controller, and according to the periodic conduction control of the controller, the plurality of capacitors are periodically discharged in sequence when entering a first working cycle; each of the capacitors includes a first working cycle in a discharging state and a second working cycle in a charging state, the first working cycle of the capacitor includes a discharging period and a non-discharging period, the discharge periods of the capacitors do not completely overlap, and the capacitors discharge during the discharge period and output a corresponding working voltage; The flash tube is electrically connected to the capacitor through the controller to emit light according to the working voltage output by the capacitor.

9. The control system for high-speed synchronous flashing of a flash lamp according to claim 8, characterized in that: The capacitor outputs a starting voltage to the flash tube before the operating voltage according to the control of the controller, so that the flash tube enters a starting state.

10. The control system for high-speed synchronous flashing of a flash lamp according to claim 8, characterized in that: The plurality of capacitors can alternately enter the first working cycle and the second working cycle according to the conduction control of the controller to which they are electrically connected; the first working cycles of the plurality of capacitors overlap, and the second working cycles of the plurality of capacitors overlap.

11. The control system for high-speed synchronous flashing of a flash lamp according to claim 8, characterized in that: The plurality of capacitors are all electrically connected to a flash tube to periodically output a working voltage to the flash tube in sequence, and a discharge period of a next capacitor is located in a non-discharge period of a previous capacitor.

12. The control system for high-speed synchronous flashing of a flash lamp according to claim 8, characterized in that: There are multiple flash tubes, and the multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence; each capacitor can periodically output an operating voltage to the corresponding electrically connected flash tube, so that the multiple flash tubes emit light alternately, and the lighting periods of the multiple flash tubes overlap.

13. The control system for high-speed synchronous flashing of a flash lamp according to claim 8, characterized in that: The control system further includes a shutter selector electrically connected to the camera and the processor, and configured to output a high-speed shutter command to the plurality of capacitors or selectively output a low-speed shutter command to one of the capacitors via the processor; the plurality of capacitors sequentially and periodically discharge according to the high-speed shutter command and the drive command, thereby outputting an operating voltage; and one of the capacitors outputs an operating voltage to the flash tube according to the low-speed shutter command and the drive command, thereby causing the flash tube to emit light; There is one or more flash tubes. When there is one flash tube, the multiple capacitors are electrically connected to the one flash tube to periodically output an operating voltage to the flash tube in sequence according to the high-speed shutter instruction and the drive instruction. When there are multiple flash tubes, the multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence. Each capacitor can periodically output an operating voltage to the corresponding electrically connected flash tube according to the high-speed shutter instruction and the drive instruction, so that the multiple flash tubes emit light alternately.

14. The control system for high-speed synchronous flashing of a flash lamp according to claim 8, characterized in that: The controller can output control signals corresponding to different capacitors to control the corresponding capacitors to enter the second working cycle and be in a charging state.

15. The control system for high-speed synchronous flashing of a flash lamp according to claim 14, characterized in that: The control system also includes a charging circuit electrically connected to the controller, and the charging circuit is electrically connected to each of the capacitors; the controller outputs a control signal to the charging circuit corresponding to different capacitors, so that the charging circuit is connected to the corresponding capacitor and the capacitor enters the second working cycle and is in a charging state.

16. The control system for high-speed synchronous flashing of a flash lamp according to any one of claims 11 to 15, characterized in that: There are two capacitors, namely a first capacitor and a second capacitor; the first capacitor and the second capacitor are both electrically connected to the flash tube, a first working cycle of the first capacitor and a first working cycle of the second capacitor both include a discharge period and a non-discharge period, and the discharge period of the second capacitor partially overlaps or completely overlaps with the non-discharge period of the first capacitor.

17. The control system for high-speed synchronous flashing of a flash lamp according to claim 16, characterized in that: The first capacitor includes multiple discharge periods and multiple non-discharge periods, and the second capacitor includes multiple discharge periods and multiple non-discharge periods; part of the discharge period of the second capacitor overlaps with part of the discharge period of the first capacitor.

18. The control system for high-speed synchronous flash of a flash lamp according to claim 16, characterized in that: The discharge period of the second capacitor is a midpoint of the non-discharge period of the first capacitor, and the discharge period of the first capacitor is a midpoint of the non-discharge period of the second capacitor.

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