Pulsed light generator, control device and method thereof and air conditioner

Abstract

The invention discloses a pulsed light generator, a control device and method of the pulsed light generator and an air conditioner, and the control device of the pulsed light generator comprises a pulse control circuit which is configured to input a first control signal and output a pulse signal according to the first control signal; the booster circuit is connected with the pulse control circuit and is configured to input the working power supply voltage and a second control signal, perform boosting processing on the working power supply voltage according to the second control signal and provide the boosted voltage to the pulse lamp under the action of the pulse signal so as to trigger the pulse lamp to emit light; the photosensitive detection circuit is configured to detect the pulse light of the pulse lamp to obtain a light signal; and the control unit is connected with the pulse control circuit, the boost voltage and the photosensitive detection circuit, and is configured to adjust the second control signal when it is judged that the optical signal does not meet the preset condition according to the pulse signal. The problems that some lamps are not turned on due to poor consistency of the pulse lamps and the pulse lamps are not turned on due to parameter attenuation after working for a long time are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a pulsed light generator, its control device, method, and air conditioner. Background Art

[0002] Applying pulsed intense light sterilization to an air conditioner can efficiently kill bacteria in the air duct and the room of the air conditioner, playing a role in purifying the air. This technology is a light source technology that uses a special xenon lamp tube as the light source and excites intense full-spectrum light in the form of pulses, and can emit pulsed light with extremely high brightness.

[0003] In related technologies, the pulsed sterilization generating device generally has the following problems. First, the problem of xenon lamp consistency. With the same excitation voltage, for example, 5 KV, a xenon lamp with normal parameters can be excited, while a xenon lamp with positive parameter deviation cannot be excited. At this time, if the excitation voltage is simply increased uniformly, for some lamp tubes with negative deviation, the instantaneous current will be too large, greatly reducing the service life of the lamp tubes. Second, after long-term operation, the internal parameters of the xenon lamp decay, making it impossible to be excited for those that could be excited by 5 KV originally. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems in the related technologies to some extent. For this purpose, an object of the present invention is to provide a pulsed light generator, its control device, method, controller, and air conditioner. The control device of the pulsed light generator can solve the problems that some lamps do not light up due to poor pulsed lamp consistency and that the lamps do not light up due to parameter decay after long-term operation of the pulsed lamp.

[0005] To achieve the above object, a control device for a pulsed light generator according to an embodiment of the first aspect of the present invention includes: a pulse control circuit configured to input a first control signal and output a pulse signal according to the first control signal; a boost circuit connected to the pulse control circuit, configured to input a working power supply voltage and a second control signal, perform a boost process on the working power supply voltage according to the second control signal, and provide the boosted voltage to a pulsed lamp under the action of the pulse signal to trigger the pulsed lamp to emit light; a photosensitive detection circuit configured to detect the pulsed light of the pulsed lamp to obtain an optical signal; and a control unit connected to the pulse control circuit, the boost voltage, and the photosensitive detection circuit respectively, configured to adjust the second control signal when determining that the optical signal does not meet a preset condition according to the pulse signal.

[0006] In addition, the control device for a pulsed light generator according to the above embodiment of the present invention may further have the following additional technical features:

[0007] According to an embodiment of the present invention, the photosensitive detection circuit includes a photoelectric device, a first resistor, a second resistor, a third resistor, a first capacitor, and a second capacitor; wherein, a first end of the photoelectric device is respectively connected to a first end of the first resistor and a first end of the second resistor, a second end of the first resistor is connected to a first preset power supply, a second end of the photoelectric device is respectively connected to a first end of the third resistor and a first end of the first capacitor, a second end of the third resistor is connected to a second preset power supply, a second end of the first capacitor is respectively connected to a third end of the photoelectric device and a first end of the second capacitor and grounded, and a second end of the second capacitor is connected to a second end of the second resistor and is configured to output the optical signal.

[0008] According to an embodiment of the present invention, the boost circuit includes: a first-stage boost sub-circuit configured to input the operating power supply voltage and the second control signal and convert the operating power supply voltage into a first-stage voltage according to the second control signal; a second-stage boost sub-circuit connected to the first-stage boost sub-circuit and the pulse control circuit respectively, configured to boost the first-stage voltage to a second-stage voltage and supply the second-stage voltage to the pulse lamp under the action of the pulse signal to trigger the pulse lamp to emit light.

[0009] According to an embodiment of the present invention, the first-stage boost sub-circuit includes: a first transformer, a first switch tube, a first diode, a fourth resistor, and a third capacitor; wherein, a first end of the primary coil of the first transformer is configured to input the operating power supply voltage, a cathode of the first diode is connected to the first end of the primary coil of the first transformer, an anode of the first diode is respectively connected to a first end of the third capacitor and a first end of the fourth resistor, a first end of the first switch tube is respectively connected to a second end of the third capacitor, a second end of the fourth resistor, and a second end of the primary coil of the first transformer, a second end of the first switch tube is grounded, a control end of the first switch tube is configured to input the second control signal, a first end of the secondary coil of the first transformer is connected to the second-stage boost sub-circuit and is configured to connect a first end of the pulse lamp, a second end of the secondary coil of the first transformer is grounded, wherein, a second end of the pulse lamp is connected to the second-stage boost sub-circuit, and a third end of the pulse lamp is grounded.

[0010] According to an embodiment of the present invention, the second-stage boost sub-circuit includes: a second transformer; wherein, a first end of the primary coil of the second transformer is connected to a first end of the secondary coil of the first transformer through a fourth capacitor, a first end of the secondary coil of the second transformer is configured to connect a second end of the pulse lamp, and a second end of the primary coil of the second transformer is connected to a second end of the secondary coil of the second transformer and grounded.

[0011] According to an embodiment of the present invention, the pulse control circuit includes: a thyristor, a second diode, a fifth resistor, a sixth resistor, and a seventh resistor; wherein,

[0012] The anode of the thyristor is connected to the first end of the secondary coil of the first transformer and is connected to the third end of the pulse lamp through a fifth capacitor. The control end of the thyristor is respectively connected to the anode of the second diode and the first end of the fifth resistor, and is configured to input the first control signal. The first end of the seventh resistor is connected to the first end of the sixth resistor. The second end of the sixth resistor is connected to a third preset power supply through a plurality of series resistors. The cathode of the thyristor, the second end of the fifth resistor, the anode of the second diode, and the second end of the seventh resistor are all grounded.

[0013] According to an embodiment of the present invention, the device further includes: an attenuator, which is arranged between the pulse lamp and the optoelectronic device.

[0014] To achieve the above object, an embodiment of the second aspect of the present invention provides a control method for a pulse light generator, which is used for the control device of the above pulse light generator. The method includes: acquiring the optical signal of the pulse lamp and the pulse signal output by the pulse control circuit; judging whether the optical signal meets a preset condition according to the pulse signal; if the optical signal does not meet the preset condition, then performing boost control on the boost circuit to enable the pulse light generator to work normally.

[0015] In addition, the control device of the pulse light generator according to the above embodiment of the present invention may further have the following additional technical features:

[0016] According to an embodiment of the present invention, the preset condition includes: the pulse of the optical signal follows the pulse of the pulse signal, and the pulse duration of the optical signal is the sum of the pulse duration of the pulse signal and a first duration.

[0017] According to an embodiment of the present invention, the boost circuit includes a first-stage boost sub-circuit and a second-stage boost sub-circuit. The first-stage boost sub-circuit is configured to convert the working power supply voltage into a first-stage voltage. The second-stage boost sub-circuit is respectively connected to the first-stage boost sub-circuit and the pulse control circuit, and is configured to boost the first-stage voltage to a second-stage voltage and provide the second-stage voltage to the pulse lamp under the action of the pulse signal; wherein, the boost control on the boost circuit includes: performing boost control on the first-stage boost sub-circuit; wherein, controlling the output voltage of the first-stage boost sub-circuit to increase step by step until the optical signal corresponding to the increased output voltage meets the preset condition, or the number of times of increasing the output voltage reaches a preset number of times, or the increased output voltage reaches a preset voltage limit value.

[0018] According to an embodiment of the present invention, after boosting the voltage of the first-stage boosting sub-circuit, the method further includes: if the optical signal meets the preset conditions, it is determined that the pulsed light generator is operating normally, and the boosting control of the first-stage boosting sub-circuit is stopped, and the current control signal for the first-stage boosting sub-circuit is saved, and when the pulsed light generator operates next time, the first-stage boosting sub-circuit is controlled according to the saved control signal.

[0019] To achieve the above object, an embodiment of the third aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the control method of the pulsed light generation circuit generator as described above is implemented.

[0020] To achieve the above object, an embodiment of the fourth aspect of the present invention provides a pulsed light generator, including: a pulsed lamp, and a control device for the pulsed lamp as described above.

[0021] To achieve the above object, an embodiment of the fifth aspect of the present invention provides an air conditioner, including the above pulsed light generator.

[0022] In the above embodiments of the present invention, a photoelectric device is arranged on the pulsed lamp to obtain the optical signal of the pulsed lamp, and anti-interference processing is performed on the photoelectric device. An attenuator is arranged between the pulsed lamp and the photoelectric device to prevent the photoelectric device from receiving external light sources and generating false trigger signals. The obtained pulsed lamp optical signal and the pulsed signal are compared to determine whether the optical signal of the pulsed lamp meets the preset conditions, that is, whether the optical signal follows the pulsed signal and the pulse duration of the optical signal is the sum of the pulse duration of the pulsed signal and the first duration. If the optical signal does not meet the preset conditions, the boosting circuit is boosted to make the pulsed lamp work normally. If the pulsed lamp cannot work normally after boosting the boosting circuit a preset number of times, it is determined that the pulsed lamp is damaged and a fault prompt is issued. The present invention also detects the light intensity of the pulsed light. If the light intensity of the pulsed lamp is too high, the boosting circuit is controlled to step down. The control method of the pulsed light generator can solve the problem that the pulsed germicidal lamp does not light up due to inconsistency, and can also solve the problem that the pulsed germicidal lamp does not light up due to parameter attenuation after long-term operation.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0024] Figure 1 is a schematic diagram of a control device of a pulsed light generator according to an embodiment of the present invention;

[0025] Figure 2It is the circuit topology diagram of a pulse light generator according to an embodiment of the present invention;

[0026] Figure 3 It is the structural schematic diagram of a pulse lamp according to an embodiment of the present invention;

[0027] Figure 4 It is the circuit diagram of a photosensitive detection circuit according to an embodiment of the present invention;

[0028] Figure 5 It is the waveform diagram of the pulse light signal and the pulse output logic under normal operation according to an embodiment of the present invention;

[0029] Figure 6 It is the schematic diagram of a control device of a pulse light generator according to another embodiment of the present invention;

[0030] Figure 7 It is the waveform diagram of the light signal and the pulse output logic in case of a fault according to an embodiment of the present invention;

[0031] Figure 8 It is the waveform diagram of the light signal and the pulse output logic in case of a fault according to another embodiment of the present invention;

[0032] Figure 9 It is the schematic diagram of a boost circuit according to an embodiment of the present invention;

[0033] Figure 10 It is the circuit diagram of a first - stage boost sub - circuit according to an embodiment of the present invention;

[0034] Figure 11 It is the circuit diagram of a second - stage boost sub - circuit according to an embodiment of the present invention;

[0035] Figure 12 It is the circuit diagram of a pulse control circuit according to an embodiment of the present invention;

[0036] Figure 13 It is the flowchart of boosting control for a boost circuit according to an embodiment of the present invention;

[0037] Figure 14 It is the flowchart of a control method of a pulse light generator according to an embodiment of the present invention;

[0038] Figure 15 It is the flowchart of judging whether a pulse lamp is overloaded according to an embodiment of the present invention;

[0039] Figure 16 It is the structural schematic diagram of a pulse light generator according to an embodiment of the present invention;

[0040] Figure 17 It is the structural schematic diagram of an air conditioner according to an embodiment of the present invention. Detailed implementation manners

[0041] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation on the present invention.

[0042] Below, the pulsed light generator, its control device, method, controller, and air conditioner according to the embodiments of the present invention will be described in detail in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0043] Figure 1 It is a schematic diagram of a control device for a pulsed light generator according to an embodiment of the present invention.

[0044] As Figure 1 shown, the control device of the pulsed light generator includes: a pulse control circuit 20, configured to input a first control signal and output a pulse signal according to the first control signal; a boost circuit 10, connected to the pulse control circuit 20, configured to input a working power supply voltage and a second control signal, boost the working power supply voltage according to the second control signal, and supply the boosted voltage to the pulsed lamp under the action of the pulse signal to trigger the pulsed lamp to emit light; a photosensitive detection circuit 30, configured to detect the pulsed light of the pulsed lamp to obtain an optical signal; a control unit 40, respectively connected to the pulse control circuit 20, the boost voltage 10, and the photosensitive detection circuit 30, configured to adjust the second control signal when it is determined according to the pulse signal that the optical signal does not meet the preset conditions.

[0045] Specifically, the boost circuit 10 is configured to input a working power supply voltage. The boost circuit 10 is used to boost the working power supply voltage. The boost circuit can both boost and step down the voltage. The boost circuit 10 inputs the boosted working power supply voltage to the pulse control circuit 20. The pulse control circuit 20 outputs a pulse signal to the pulsed lamp according to the first control signal. The pulsed lamp can be a xenon lamp and works under the trigger of the pulse signal. When the pulsed lamp works, it generates pulsed light. The photosensitive detection circuit 30 is used to detect the pulsed light of the pulsed lamp to obtain an optical signal.

[0046] Exemplarily, the boost circuit 10, the pulse control circuit 20, and the photosensitive detection circuit 30 are also connected to the control unit 40. The micro control unit outputs a first control signal to the pulse control circuit 20 and outputs a second control signal to the boost circuit 10. When it is determined according to the pulse signal that the optical signal does not meet the preset conditions, the second control signal is adjusted, that is, the control signal for the boost circuit 10 is adjusted to enable the pulsed lamp to work properly.

[0047] Figure 2Schematic diagram of a control device for a pulsed light generator according to another example of the present invention.

[0048] Exemplarily, the boost circuit may include a first-stage boost circuit and a second-stage boost circuit. The working power supply voltage is input to the first-stage boost circuit. The relationship between the output voltage and the input voltage of the boost circuit is: Uout = Uin * Ns * D / (Np(1 - D)), where Uout is the output voltage of the first-stage boost circuit, Uin is the input voltage of the first-stage boost circuit, Ns is the number of turns of the secondary coil in the first-stage boost circuit, Np is the number of turns of the primary coil in the first-stage boost circuit, and D is the duty cycle of the first-stage boost circuit. The first-stage boost circuit can adjust its output voltage by controlling the duty cycle D. Denote the voltage output by the first-stage boost circuit as H-VDD. A voltage sampling circuit is arranged after the first-stage boost circuit, and the sampled voltage T-VDD1 collected by the voltage sampling circuit. The sampled voltage is transmitted to the control unit. The output voltage of the boost circuit is boosted again by the second-stage boost circuit. Denote the voltage output by the second-stage boost transformer as S-VDD, and S_VDD = N * H_VDD, where N is the turns ratio of the second-stage boost circuit. Then, a pulse signal is output through the pulse control circuit to trigger the pulsed lamp to emit light. The first-stage boost circuit, the voltage sampling circuit, and the pulse control circuit are all connected to the control unit. The control unit is used to control the boost circuit according to whether the optical signal of the pulsed lamp is normal, and judge whether the output voltage of the boost circuit reaches the target value according to the sampled voltage T-VDD1.

[0049] More specifically, to determine whether the pulsed lamp is triggered to emit light normally, obtain the optical signal of the pulsed lamp and the pulse signal of the pulse control circuit, and judge whether the optical signal of the pulsed lamp is normal according to the pulse signal. Control the first-stage boost circuit when the optical signal of the pulsed lamp does not meet the preset conditions, so that the pulsed lamp can work normally. The present invention obtains the optical signal of the pulsed light by arranging an optoelectronic device on the pulsed lamp.

[0050] In an embodiment of the present invention, as Figure 3 shown, the control device of the pulsed light generator further includes: an attenuator, and the attenuator is arranged between the pulsed lamp and the optoelectronic device.

[0051] As an example, an attenuator is arranged between the pulsed lamp and the optoelectronic device. The attenuator can be an attenuation glass. As Figure 3 shown in an example diagram of a pulsed lamp, the pulsed lamp includes a plastic bracket 1, a xenon lamp tube 2, an attenuation glass 3, and an optoelectronic device 4. After the xenon lamp tube emits pulsed strong light, the light is attenuated by the attenuator, and the optoelectronic device detects the optical signal of the pulsed light and converts it into a feedback voltage. The control unit judges whether there is a fault in the system through this feedback voltage, and then controls the boost circuit to make the system work normally. The function of the attenuator is to prevent the optoelectronic device from receiving external light sources and generating false trigger signals.

[0052] The photosensitive detection circuit 30 includes a photoelectric device, which is used to detect the optical signal of the pulsed light and convert it into a feedback voltage.

[0053] As an example, as Figure 4 shown, the photosensitive detection circuit 30 includes a photoelectric device REC, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1 and a second capacitor C2; wherein, the first end of the photoelectric device REC is respectively connected to the first end of the first resistor R1 and the first end of the second resistor R2, the second end of the first resistor R1 is connected to a first preset power supply, the second end of the photoelectric device REC is respectively connected to the first end of the third resistor R3 and the first end of the first capacitor C1, the second end of the third resistor R3 is connected to a second preset power supply, the second end of the first capacitor C1 is respectively connected to the third end of the photoelectric device REC and the first end of the second capacitor C2 and grounded, and the second end of the second capacitor C2 is connected to the second end of the second resistor R2 and is configured to output an optical signal.

[0054] Specifically, the photoelectric device REC is used to convert the collected pulsed optical signal into an electrical signal. The photoelectric device REC can be a photosensitive sensor. The first preset power supply can be 5V, and the second preset power supply can be 5V. The photosensitive detection circuit 30 detects the optical signal of the pulsed light. When the control unit determines whether the optical signal meets the preset conditions according to the pulse signal, when the optical signal does not meet the preset conditions, the second control signal is adjusted to control the boost circuit 10.

[0055] As an example, as Figure 5 shown in the waveform schematic diagram of normal operation detection, when the pulsed light generator is operating normally, the pulse of the optical signal, that is, the pulse of the photosensitive detection signal, follows the pulse of the pulse signal. That is, the pulse control circuit outputs a pulse signal with a frequency of F. Under normal circumstances, the frequency of the photosensitive detection signal should also be F, and the high level of the photosensitive detection signal follows the high level of the pulse signal. The pulse duration of the optical signal is the sum of the pulse duration of the pulse signal and the first duration. If the pulse conduction time output by the pulse control circuit is T0, the pulse duration of the optical signal, that is, the pulse duration of the photosensitive detection, should be the sum of the pulse conduction time T0 output by the pulse control circuit and the first duration T1.

[0056] Among them, the first duration T1 can be set according to Figure 6 the capacitance of the capacitor CE1 in

[0057] As Figure 7Shown is an example of a fault waveform. The pulse control circuit outputs pulses normally, but the optoelectronic device only detects a low level and no other signals. In this case, the pulse lamp fails to trigger successfully. The reason may be that the trigger voltage is low and the voltage output by the pulse control circuit does not reach the trigger voltage of the pulse lamp, or the pulse lamp is damaged. It is necessary to further determine the cause of the pulse lamp failure.

[0058] As Figure 8 Shown is another example of a fault waveform. The optoelectronic device can detect a high level, but the high level does not follow the output pulses of the pulse control circuit, and the duration of the pulses of the optical signal does not meet the condition of T0 + T1. Then it is considered that there is no signal output from the pulsed strong light.

[0059] The optical signals in the above two example fault situations do not meet the preset conditions. If the optical signal does not meet the preset conditions, the boost circuit 20 is controlled to boost the voltage so that the pulsed light generator works normally.

[0060] In an embodiment of the present invention, as Figure 9 shown, the boost circuit 20 includes: a first-stage boost sub-circuit 101, configured to input a working power supply voltage and a second control signal, and convert the working power supply voltage into a first-stage voltage according to the second control signal; a second-stage boost sub-circuit 102, connected to the first-stage boost sub-circuit 101 and the pulse control circuit 20 respectively, configured to boost the first-stage voltage to a second-stage voltage, and supply the second-stage voltage to the pulse lamp under the action of a pulse signal to trigger the pulse lamp to emit light.

[0061] Specifically, the boost circuit 20 includes a first-stage boost sub-circuit 101 and a second-stage boost sub-circuit 102. The first-stage boost sub-circuit 101 is used to boost the working power supply voltage, and the second-stage boost sub-circuit 102 is used to process the voltage boosted by the first-stage boost sub-circuit 101. When the optical signal does not meet the preset conditions, the boost circuit 20 is controlled to boost the voltage, including controlling the first-stage boost sub-circuit 101 to boost the voltage.

[0062] In an embodiment of the present invention, as Figure 10As shown in the figure, the first - stage boost sub - circuit 101 includes: a first transformer TR1, a first switching transistor Q1, a first diode D1, a fourth resistor R4, and a third capacitor C3. Among them, the first end of the primary coil of the first transformer TR1 is configured to input the working power supply voltage. The cathode of the first diode D1 is connected to the first end of the primary coil of the first transformer TR1. The anode of the first diode D1 is respectively connected to the first end of the third capacitor C3 and the first end of the fourth resistor R4. The first end of the first switching transistor Q1 is respectively connected to the second end of the third capacitor C3, the second end of the fourth resistor R4, and the second end of the primary coil of the first transformer TR1. The second end of the first switching transistor Q1 is grounded. The control end of the first switching transistor Q1 is configured to input a second control signal. The first end of the secondary coil of the first transformer TR1 is connected to the second - stage boost sub - circuit 102 and is configured to connect to the first end of the pulsed lamp. The second end of the secondary coil of the first transformer TR1 is grounded. Among them, the second end of the pulsed lamp is connected to the second - stage boost sub - circuit 102, and the third end of the pulsed lamp is grounded.

[0063] Specifically, the working power supply voltage is input to the first - stage boost sub - circuit 101. The relationship between the output voltage and the input voltage of the first - stage boost sub - circuit 101 is: Uout = Uin*Ns*D / (Np(1 - D)), where Uout is the output voltage of the first - stage boost sub - circuit 101, Uin is the input voltage of the first - stage boost sub - circuit 101, Ns is the number of turns of the secondary coil in the first transformer TR1, Np is the number of turns of the primary coil of the first transformer TR1, and D is the duty cycle of the first transformer TR1. The first - stage boost sub - circuit 101 can adjust its output voltage by controlling the duty cycle D.

[0064] In an embodiment of the present invention, as Figure 11 shown, the second - stage boost sub - circuit 102 includes: a second transformer TR2. Among them, the first end of the primary coil of the second transformer TR2 is connected to the first end of the secondary coil of the first transformer TR1 through a fourth capacitor C4. The first end of the secondary coil of the second transformer TR2 is configured to connect to the second end of the pulsed lamp. The second end of the primary coil of the second transformer TR2 is connected to the second end of the secondary coil of the second transformer TR2 and is grounded.

[0065] Specifically, denote the voltage output by the first - stage boost sub - circuit 101 as H - VDD. The output voltage of the first - stage boost sub - circuit 101 is boosted again by the second - stage boost sub - circuit 102. Denote the voltage output by the second - stage boost sub - circuit 102 as S - VDD, and S_VDD = N*H_VDD, where N is the turns ratio of the second - stage boost sub - circuit 102. Then, a pulse signal is output through the pulse control circuit to trigger the pulsed lamp to emit light.

[0066] In an embodiment of the present invention, as Figure 12As shown, the pulse control circuit 20 includes: a thyristor IC1, a second diode D2, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7. Among them, the anode of the thyristor IC1 is connected to the first end of the secondary coil of the first transformer TR1 and is connected to the third end of the pulse lamp through a fifth capacitor C5. The control end of the thyristor IC1 is respectively connected to the anode of the second diode D2 and the first end of the fifth resistor R5 and is configured to input a first control signal. The first end of the seventh resistor R7 is connected to the first end of the sixth resistor R6. The second end of the sixth resistor R6 is connected to a third preset power supply through a plurality of series resistors. The cathode of the thyristor IC1, the second end of the fifth resistor R5, the anode of the second diode D2, and the second end of the seventh resistor R7 are all grounded.

[0067] Specifically, the second end of the sixth resistor R6 is connected to the third preset power supply through a plurality of series resistors. The positions of the plurality of resistors are replaced by the resistor R8 as shown in Figure 12 shown. In addition to R8, a plurality of series resistors can also be set and connected to the third preset power supply. The pulse control circuit 20 receives the first control signal and outputs a pulse according to the first control signal to trigger the pulse lamp under the action of the pulse signal.

[0068] As an example, when the control unit detects that the optical signal does not meet the preset conditions, that is, the optical signal fails, the possible reasons for the failure are: 1. The parameters of the pulse lamp are inconsistent or there is attenuation. 2. The pulse lamp is damaged. To determine the specific reason for the optical signal failure, when the control unit first detects the optical signal failure, it is assumed that the reason for the pulse lamp failure is the attenuation of the pulse lamp parameters, and the second control signal is adjusted to perform boost control on the first-stage boost sub-circuit 101 to make the pulse light generator work normally. If the pulse lamp still cannot return to normal after performing boost control on the first-stage boost sub-circuit 101, it is determined that the reason for the optical signal is that the pulse lamp is damaged.

[0069] As an example, performing boost control on the boost circuit includes: controlling the output voltage of the first-stage boost sub-circuit 101 to increase step by step until the optical signal corresponding to the increased output voltage meets the preset conditions, or the number of times of increasing the output voltage reaches the preset number of times, or the increased output voltage reaches the preset voltage limit value.

[0070] Specifically, for the boost control of the first-stage boost sub-circuit 101, the output voltage H_VDD of the first-stage boost sub-circuit 101 can be lifted by controlling the duty cycle D of the first-stage boost sub-circuit 101, and the output voltage of the first-stage boost sub-circuit 101 can be increased step by step. For example, by controlling the duty cycle D, the voltage of the boost circuit output voltage H_VDD is lifted by M volts, where M can be between 5 and 20 V. After passing through the second-stage boost sub-circuit 102, the elevated voltage acting on the pulse lamp is M*N, and N is the turns ratio of the second transformer TR2. If the optical signal corresponding to the elevated output voltage after the boost control meets the preset conditions, the boost control of the first-stage boost sub-circuit 101 is stopped. If the optical signal corresponding to the elevated output voltage after the first boost control still does not meet the preset conditions, the boost control of the first-stage boost sub-circuit 101 is continued.

[0071] In some embodiments, the boost control of the boost circuit includes that the number of times the output voltage is increased reaches a preset number of times. When the pulse lamp still cannot work properly after the first boost control, the controller MCU will raise the voltage again. For example, it is raised by M volts again until the preset number of times is reached.

[0072] The preset number of times can be 3 times. As Figure 13 shown, the control unit controls the duty cycle D so that the first-stage boost sub-circuit 101 generates the H-VDD voltage. The H-VDD is boosted twice to generate the S-VDD voltage for the pulse control circuit. The control unit controls the output logic to trigger the pulse lamp to emit a pulsed strong light. The control unit detects the optoelectronic device signal to judge whether a fault occurs. If the optoelectronic device signal does not follow the pulse signal or the pulse duration does not meet T0+T1, the control unit modulates the duty cycle D of the first-stage boost sub-circuit 101 to raise the H-VDD voltage by M volts, and the voltage acting on the pulse lamp is raised by M*N volts. When the pulse lamp still cannot work properly after the first boost control, the MCU will raise the voltage again by M volts. If the optical signal still cannot meet the preset conditions, the duty cycle of the first-stage boost sub-circuit 101 is regulated again. Eventually, there will be three voltage increases. If the elevated voltage 3*M*N after three voltage increases cannot make the pulse lamp return to normal operation, it is considered that the pulse lamp has a damage fault.

[0073] In some embodiments, the boost control of the first-stage boost sub-circuit 101 further includes that the elevated output voltage reaches a preset voltage limit value. The preset voltage limit value can be the voltage value corresponding to the maximum duty cycle. For example, when modulating the duty cycle D, it has been modulated to the maximum duty cycle. At this time, the voltage value corresponding to the maximum duty cycle is already the maximum voltage that the first-stage boost sub-circuit 101 can provide. At this time, the boost control of the first-stage boost sub-circuit 101 is stopped, and it is judged whether the optical signal of the corresponding pulsed light meets the preset conditions.

[0074] In an embodiment of the present invention, the control method of the pulsed light generator further includes: if the optical signal meets the preset conditions, it is determined that the pulsed light generator is operating normally, and the boost control of the first-stage boost sub-circuit 101 is stopped, and the current control signal for the first-stage boost sub-circuit 101 is saved, and when the pulsed light generator runs next time, the boost circuit is controlled according to the saved control signal.

[0075] Specifically, during the process of performing boost control on the first-stage boost sub-circuit 101, if the optical signal of the pulsed lamp meets the preset conditions, it is determined that the pulsed light generator is operating normally, and the boost control of the first-stage boost sub-circuit 101 is stopped. The control unit saves the duty cycle corresponding to the current voltage value, and when the pulsed light generator runs next time, the boost circuit is directly controlled according to the saved control signal, that is, the first-stage boost sub-circuit 101 is controlled according to the saved duty cycle.

[0076] After performing boost control on the first-stage boost sub-circuit 101, if the optical signal of the pulsed lamp can return to the normal operating state, it indicates that the reason for the abnormal optical signal of the pulsed lamp is that the parameters of the pulsed lamp are inconsistent or there is attenuation. If the pulsed lamp is damaged, even if boost control is performed on the first-stage boost sub-circuit 101, the optical signal of the pulsed lamp cannot return to normal.

[0077] As an example, the control method of the pulsed light generator further includes: after stopping the boost control of the boost circuit, if the optical signal still does not meet the preset conditions, a fault prompt message is sent to prompt for pulsed lamp damage.

[0078] Specifically, after performing boost control on the first-stage boost sub-circuit 101 multiple times, if the optical signal of the pulsed lamp still does not meet the preset conditions, it indicates that the reason for the abnormal optical signal of the pulsed lamp is pulsed lamp damage. The pulsed light generator sends a fault prompt message to prompt for pulsed lamp damage. The fault prompt message includes pulsed lamp damage information, and the fault prompt can be a voice prompt or a signal prompt, etc.

[0079] The control device of the pulsed light generator according to the embodiment of the present invention obtains the optical signal of the pulsed lamp by setting an optoelectronic device on the pulsed lamp, and performs anti-interference processing on the optoelectronic device. An attenuator is provided between the pulsed lamp and the optoelectronic device to prevent the optoelectronic device from receiving external light sources and generating false trigger signals. The obtained optical signal of the pulsed lamp is compared with the pulsed signal to determine whether the optical signal of the pulsed lamp meets the preset conditions, that is, whether the optical signal follows the pulsed signal and the pulse duration of the optical signal is the sum of the pulse duration of the pulsed signal and the first duration. If the optical signal does not meet the preset conditions, the boost circuit is boosted to enable the pulsed lamp to work properly. If the pulsed lamp cannot work properly after boosting the boost circuit a preset number of times, it is determined that the pulsed lamp is damaged and a fault prompt is issued. The present invention also detects the light intensity of the pulsed light. If the light intensity of the pulsed lamp is too high, the boost circuit is controlled to step down. The control method of the pulsed light generator can solve the problem that the pulsed sterilization lamp does not light up due to inconsistency, and can also solve the problem that the pulsed sterilization lamp does not light up due to parameter attenuation after long-term operation.

[0080] The present invention also provides a control method for a pulsed light generator.

[0081] As Figure 14 shown, the control method of the pulsed light generator includes:

[0082] S1, obtaining the optical signal of the pulsed lamp and the pulsed signal output by the pulse control circuit.

[0083] S2, judging whether the optical signal meets the preset conditions according to the pulsed signal.

[0084] S3, if the optical signal does not meet the preset conditions, the boost circuit is boosted to enable the pulsed light generator to work properly.

[0085] Specifically, the optical signal of the pulsed lamp can be obtained by an optoelectronic device. After obtaining the pulsed signal of the pulse control circuit and the voltage signal detected by the optoelectronic device, it is judged whether the voltage signal detected by the optoelectronic device, that is, the optical signal, meets the preset conditions according to the pulsed signal of the pulse control circuit.

[0086] In an embodiment of the present invention, the preset conditions include: the pulse of the optical signal follows the pulse of the pulsed signal, and the pulse duration of the optical signal is the sum of the pulse duration of the pulsed signal and the first duration.

[0087] Specifically, when the pulsed light generator is operating normally, the pulses of the optical signal, i.e., the pulses of the photosensitive detection signal, follow the pulses of the pulse signal. That is, the pulse control circuit outputs a pulse signal with a frequency of F. Under normal circumstances, the frequency of the photosensitive detection signal should also be F, and the high level of the photosensitive detection signal follows the high level of the pulse signal. The pulse duration of the optical signal is the sum of the pulse duration of the pulse signal and the first duration. If the pulse conduction time output by the pulse control circuit is T0, the pulse duration of the optical signal, i.e., the pulse duration of the photosensitive detection, should be the sum of the pulse conduction time T0 output by the pulse control circuit and the first duration T1.

[0088] As Figure 7 shown is an example of a fault waveform. The pulse control circuit outputs pulses normally, but the optoelectronic device only detects a low level and no other signals. This situation means that the pulsed lamp fails to trigger successfully. The reason may be that the trigger voltage is low and the voltage output by the pulse control circuit does not reach the trigger voltage of the pulsed lamp, or the pulsed lamp is damaged. It is necessary to further determine the cause of the pulsed lamp failure.

[0089] As Figure 8 shown is another example of a fault waveform. The optoelectronic device can detect a high level, but the high level does not follow the output pulses of the pulse control circuit, and the pulse duration of the optical signal does not meet the condition of T0 + T1. Then it is considered that there is no signal output from the pulsed intense light.

[0090] The optical signals in the above two example fault situations do not meet the preset conditions. If the optical signal does not meet the preset conditions, the boost circuit is controlled to boost the voltage so that the pulsed light generator operates normally.

[0091] As an example, the boost circuit includes a first-stage boost sub-circuit and a second-stage boost sub-circuit. The first-stage boost sub-circuit is configured to convert the working power supply voltage into a first-stage voltage. The second-stage boost sub-circuit is connected to the first-stage boost sub-circuit and the pulse control circuit respectively, and is configured to boost the first-stage voltage to a second-stage voltage and supply the second-stage voltage to the pulsed lamp under the action of the pulse signal. Among them, controlling the boost circuit to boost the voltage includes: controlling the first-stage boost sub-circuit to boost the voltage; among them, controlling the output voltage of the first-stage boost sub-circuit to increase step by step until the optical signal corresponding to the increased output voltage meets the preset conditions, or the number of times the output voltage increases reaches the preset number of times, or the increased output voltage reaches the preset voltage limit.

[0092] Exemplarily, the working power supply voltage is input to the first-level boost sub-circuit. The relationship between the output voltage and the input voltage of the first-level boost sub-circuit is: Uout = Uin * Ns * D / (Np(1 - D)), where Uout is the output voltage of the first-level boost sub-circuit, Uin is the input voltage of the first-level boost sub-circuit, Ns is the number of turns of the secondary coil in the first transformer, Np is the number of turns of the primary coil of the first transformer, and D is the duty cycle of the first transformer. The first-level boost sub-circuit can adjust its output voltage by controlling the duty cycle D. Denote the voltage output by the first-level boost sub-circuit as H-VDD. The output voltage of the first-level boost sub-circuit is boosted again by the second-level boost sub-circuit. Denote the voltage output by the second-level boost sub-circuit as S-VDD, and S_VDD = N * H_VDD, where N is the turns ratio of the second-level boost sub-circuit. Then, a pulse signal is output through the pulse control circuit to trigger the pulse lamp to emit light.

[0093] Exemplarily, when the control unit detects that the optical signal does not meet the preset conditions, that is, the optical signal fails. The possible reasons for the failure are: 1. The parameters of the pulse lamp are inconsistent or there is attenuation. 2. The pulse lamp is damaged. To determine the specific reason for the optical signal failure, when the controller first detects the optical signal failure, assume that the reason for the pulse lamp failure is the attenuation of the pulse lamp parameters, and perform boost control on the boost circuit to make the pulse light generator work normally. If the pulse lamp still cannot return to normal after the boost control on the boost circuit, it is determined that the reason for the optical signal is that the pulse lamp is damaged.

[0094] Specifically, to perform boost control on the first-level boost sub-circuit, the duty cycle D of the first-level boost sub-circuit can be controlled to raise the output voltage H_VDD of the first-level boost sub-circuit. The output voltage of the first-level boost sub-circuit can be increased step by step. For example, by controlling the duty cycle D, the voltage of the output voltage H_VDD of the boost circuit is raised by M volts, where M can be between 5 and 20V. After passing through the second-level boost transformer, the elevated voltage acting on the pulse lamp is M * N, where N is the turns ratio of the second-level boost transformer. If the optical signal corresponding to the elevated output voltage after the boost control meets the preset conditions, stop the boost control on the first-level boost sub-circuit. If the optical signal corresponding to the elevated output voltage after one boost control still does not meet the preset conditions, continue to perform boost control on the first-level boost sub-circuit.

[0095] In some embodiments, performing boost control on the first-level boost sub-circuit includes reaching a preset number of times for the increase in the output voltage. When the pulse lamp still cannot work normally after the first boost control, the controller MCU will raise the voltage again. For example, raise it by M volts again until the preset number of times is reached.

[0096] The preset number of times can be 3 times. The control unit controls the duty cycle D so that the first-stage boost sub-circuit generates the H-VDD voltage. The H-VDD is boosted twice to generate the S-VDD voltage for the pulse control circuit. The controller MCU controls the output logic to excite the pulse lamp to emit a pulsed strong light. The controller MCU detects the optoelectronic device signal to judge whether a fault occurs. If the optoelectronic device signal does not follow the pulse signal or the pulse duration does not meet T0+T1, the controller MCU modulates the duty cycle D of the first-stage boost sub-circuit to increase the H-VDD voltage by M volts, and the voltage applied to the pulse lamp increases by M*N volts. If the pulse lamp still cannot work properly after the first boost control, the MCU will increase the voltage again by M volts. If the optical signal still cannot meet the preset conditions, the duty cycle of the first-stage boost sub-circuit is regulated again, and finally there will be three voltage increases. If the boosted voltage 3*M*N after three voltage increases cannot make the pulse lamp return to normal operation, it is considered that the pulse lamp has a damage fault.

[0097] In some embodiments, the boost control of the first-stage boost sub-circuit further includes that the increased output voltage reaches a preset voltage limit value. The preset voltage limit value can be the voltage value corresponding to the maximum duty cycle. For example, when modulating the duty cycle D, it has been modulated to the maximum duty cycle. At this time, the voltage value corresponding to the maximum duty cycle is already the maximum voltage that the boost circuit can provide. At this time, the boost control of the first-stage boost sub-circuit is stopped, and it is judged whether the optical signal of the corresponding pulsed light meets the preset conditions.

[0098] In some embodiments, the control method of the pulsed light generator further includes: if the optical signal meets the preset conditions, it is determined that the pulsed light generator works normally, and the boost control of the first-stage boost sub-circuit is stopped, and the current control signal for the first-stage boost sub-circuit is saved, and when the pulsed light generator runs next time, the first-stage boost sub-circuit is controlled according to the saved control signal.

[0099] After the boost control of the first-stage boost sub-circuit, if the optical signal of the pulse lamp can return to the normal working state, it means that the reason for the abnormal optical signal of the pulse lamp is that the parameters of the pulse lamp are inconsistent or there is attenuation. If the pulse lamp is damaged, even if the boost control of the first-stage boost sub-circuit is performed, the optical signal of the pulse lamp cannot return to normal.

[0100] In an embodiment of the present invention, the control method of the pulsed light generator further includes: after stopping the boost control of the first-stage boost sub-circuit, if the optical signal still does not meet the preset conditions, a fault prompt message is sent to prompt the damage of the pulse lamp.

[0101] Specifically, after performing boost control on the first-stage boost sub-circuit multiple times, if the optical signal of the pulsed lamp still does not meet the preset conditions, it indicates that the reason for the abnormal optical signal of the pulsed lamp is that the pulsed lamp is damaged. The pulsed light generator emits a fault prompt message to prompt the damage of the pulsed lamp. The fault prompt message includes the pulsed lamp damage information, and the fault prompt can be a voice prompt or a signal prompt, etc.

[0102] To prevent the current of the pulsed lamp from being too large and damaging the lifespan of the pulsed lamp, the present invention also uses an optoelectronic device to detect the light intensity of the pulsed lamp. Since the current and light intensity of the pulsed lamp are proportional, controlling the light intensity of the pulsed lamp controls the current of the pulsed lamp.

[0103] In an embodiment of the present invention, as Figure 15 shown, the control method of the pulsed light generator further includes:

[0104] S101, judging whether the pulsed lamp is overloaded according to the optical signal.

[0105] S102, if the pulsed lamp is overloaded, perform buck control on the first-stage boost sub-circuit.

[0106] Specifically, it is judged whether the pulsed lamp is overloaded according to the optical signal detected by the optoelectronic device. When the photosensitive voltage T-VDD2 detected by the optoelectronic device exceeds the threshold voltage T_VDDmax, it indicates that the pulsed lamp is overloaded and the current of the pulsed lamp is too large. If the current of the pulsed lamp is not controlled, the lifespan of the pulsed lamp will be damaged. The control unit modulates the duty cycle of the boost circuit to perform buck control on the first-stage boost sub-circuit. Performing buck control on the first-stage boost sub-circuit should not only ensure that the pulsed lamp can emit light normally, but also ensure that the current of the pulsed lamp cannot be too large. The control unit can judge whether the buck control of the boost circuit has reached the target by collecting T-VDD1 through the voltage sampling circuit.

[0107] The control method of the pulse lamp generator according to the embodiment of the present invention obtains the optical signal of the pulse lamp by setting an optoelectronic device on the pulse lamp, and performs anti-interference processing on the optoelectronic device. An attenuator is arranged between the pulse lamp and the optoelectronic device to prevent the optoelectronic device from receiving external light sources and generating false trigger signals. The obtained pulse lamp optical signal is compared with the pulse signal to determine whether the optical signal of the pulse lamp meets the preset conditions, that is, whether the optical signal follows the pulse signal and the pulse duration of the optical signal is the sum of the pulse duration of the pulse signal and the first duration. If the optical signal does not meet the preset conditions, the boost circuit is boosted to enable the pulse lamp to work normally. If the pulse lamp cannot work normally after boosting the boost circuit a preset number of times, it is determined that the pulse lamp is damaged and a fault prompt is issued. The present invention also detects the light intensity of the pulsed light. If the light intensity of the pulse lamp is too high, the boost circuit is controlled to step down. The control method of the pulse light generator can solve the problem that the pulsed germicidal lamp does not light up due to non-uniformity, and can also solve the problem that the pulsed germicidal lamp does not light up due to parameter attenuation after long-term operation.

[0108] The present invention also provides a computer-readable storage medium.

[0109] In this embodiment, a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the control method of the pulsed light generation circuit generator as described above is implemented.

[0110] The present invention also provides a pulsed light generator.

[0111] In this embodiment, as Figure 16 shown, the pulsed light generator 400 includes: a pulse lamp 200, and a control device 300 for the pulse lamp as described above.

[0112] The present invention also provides an air conditioner.

[0113] In this embodiment, as Figure 17 shown, the air conditioner 1000 includes a pulsed light generator 400.

[0114] The control method, storage medium, controller and air conditioner of the pulse light generator according to the embodiments of the present invention obtain the optical signal of the pulse lamp by setting an optoelectronic device on the pulse lamp, and perform anti-interference processing on the optoelectronic device. An attenuator is provided between the pulse lamp and the optoelectronic device to prevent the optoelectronic device from receiving external light sources and generating false trigger signals. The obtained pulse lamp optical signal is compared with the pulse signal to determine whether the optical signal of the pulse lamp meets the preset conditions, that is, whether the optical signal follows the pulse signal and the pulse duration of the optical signal is the sum of the pulse duration of the pulse signal and the first duration. If the optical signal does not meet the preset conditions, the boost circuit is boosted to enable the pulse lamp to work normally. If the pulse lamp cannot work normally after boosting the boost circuit a preset number of times, it is determined that the pulse lamp is damaged and a fault prompt is issued. The present invention also detects the light intensity of the pulse light. If the light intensity of the pulse lamp is too high, the boost circuit is controlled to step down. The control method of the pulse light generator can solve the problem that the pulsed germicidal lamp does not light up due to inconsistency, and can also solve the problem that the pulsed germicidal lamp does not light up due to parameter attenuation after long-term operation.

[0115] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection part (electronic device) having one or more wirings, a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other appropriate processing as necessary, and then stored in a computer memory.

[0116] It should be understood that each part of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0117] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0118] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0119] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0120] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0121] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0122] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A control device for a pulsed light generator, characterized in that, Comprising: A pulse control circuit configured to input a first control signal and output a pulse signal according to the first control signal; A boost circuit connected to the pulse control circuit, configured to input a working power supply voltage and a second control signal, boost the working power supply voltage according to the second control signal, and supply the boosted voltage to a pulse lamp under the action of the pulse signal to trigger the pulse lamp to emit light; A photosensitive detection circuit configured to detect the pulsed light of the pulse lamp to obtain an optical signal; A control unit respectively connected to the pulse control circuit, the boost voltage, and the photosensitive detection circuit, configured to adjust the second control signal when it is determined according to the pulse signal that the optical signal does not meet a preset condition.

2. The control device of the pulsed light generator according to claim 1, characterized in that, The photosensitive detection circuit includes a photoelectric device, a first resistor, a second resistor, a third resistor, a first capacitor, and a second capacitor; wherein, A first end of the photoelectric device is respectively connected to a first end of the first resistor and a first end of the second resistor, a second end of the first resistor is connected to a first preset power supply, a second end of the photoelectric device is respectively connected to a first end of the third resistor and a first end of the first capacitor, a second end of the third resistor is connected to a second preset power supply, a second end of the first capacitor is respectively connected to a third end of the photoelectric device and a first end of the second capacitor and grounded, and a second end of the second capacitor is connected to a second end of the second resistor, configured to output the optical signal.

3. The device according to claim 1, characterized in that, The boost circuit includes: A first-stage boost sub-circuit configured to input the working power supply voltage and the second control signal and convert the working power supply voltage into a first-stage voltage according to the second control signal; A second-stage boost sub-circuit respectively connected to the first-stage boost sub-circuit and the pulse control circuit, configured to boost the first-stage voltage to a second-stage voltage and supply the second-stage voltage to the pulse lamp under the action of the pulse signal to trigger the pulse lamp to emit light.

4. The device according to claim 3, characterized in that The first-stage boost sub-circuit includes: a first transformer, a first switching tube, a first diode, a fourth resistor, and a third capacitor; wherein, A first end of the primary coil of the first transformer is configured to input the working power supply voltage, a cathode of the first diode is connected to the first end of the primary coil of the first transformer, an anode of the first diode is respectively connected to a first end of the third capacitor and a first end of the fourth resistor, a first end of the first switching tube is respectively connected to a second end of the third capacitor, a second end of the fourth resistor, and a second end of the primary coil of the first transformer, a second end of the first switching tube is grounded, a control end of the first switching tube is configured to input the second control signal, a first end of the secondary coil of the first transformer is connected to the second-stage boost sub-circuit and is configured to be connected to a first end of the pulse lamp, a second end of the secondary coil of the first transformer is grounded, wherein, a second end of the pulse lamp is connected to the second-stage boost sub-circuit, and a third end of the pulse lamp is grounded.

5. The device according to claim 4, characterized in that, The second-stage boost sub-circuit includes: a second transformer; wherein, The first end of the primary coil of the second transformer is connected to the first end of the secondary coil of the first transformer through a fourth capacitor. The first end of the secondary coil of the second transformer is configured to be connected to the second end of the pulse lamp. The second end of the primary coil of the second transformer is connected to the second end of the secondary coil of the second transformer and grounded.

6. The device according to claim 5, characterized in that, The pulse control circuit includes: a thyristor, a second diode, a fifth resistor, a sixth resistor, and a seventh resistor; wherein, The anode of the thyristor is connected to the first end of the secondary coil of the first transformer and is connected to the third end of the pulse lamp through a fifth capacitor. The control end of the thyristor is respectively connected to the anode of the second diode and the first end of the fifth resistor and is configured to input the first control signal. The first end of the seventh resistor is connected to the first end of the sixth resistor. The second end of the sixth resistor is connected to a third preset power supply through a plurality of series resistors. The cathode of the thyristor, the second end of the fifth resistor, the anode of the second diode, and the second end of the seventh resistor are all grounded.

7. The device according to claim 2, characterized in that, The device further includes: an attenuator, which is arranged between the pulse lamp and the optoelectronic device.

8. A control method for a pulsed light generator, characterized in that, The method is used for the control device of the pulse light generator according to any one of claims 1-7. The method includes: Obtaining the optical signal of the pulse lamp and the pulse signal output by the pulse control circuit; Judging whether the optical signal meets a preset condition according to the pulse signal; If the optical signal does not meet the preset condition, performing boost control on the boost circuit to enable the pulse light generator to work normally.

9. The method according to claim 8, characterized in that The preset condition includes: The pulse of the optical signal follows the pulse of the pulse signal, and the pulse duration of the optical signal is the sum of the pulse duration of the pulse signal and the first duration.

10. The method according to claim 8, characterized in that The boost circuit includes a primary boost sub-circuit and a secondary boost sub-circuit. The primary boost sub-circuit is configured to convert the working power supply voltage into a primary voltage. The secondary boost sub-circuit is respectively connected to the primary boost sub-circuit and the pulse control circuit and is configured to boost the primary voltage to a secondary voltage and supply the secondary voltage to the pulse lamp under the action of the pulse signal; wherein, the performing boost control on the boost circuit includes: performing boost control on the primary boost sub-circuit; wherein, Controlling the output voltage of the primary boost sub-circuit to increase step by step until the optical signal corresponding to the increased output voltage meets the preset condition, or the number of times of increasing the output voltage reaches a preset number of times, or the increased output voltage reaches a preset voltage limit.

11. The method according to claim 10, characterized in that, After performing the boost control on the primary boost sub-circuit, the method further includes: If the optical signal meets the preset condition, determining that the pulse light generator works normally, stopping the boost control on the primary boost sub-circuit, saving the current control signal for the primary boost sub-circuit, and controlling the primary boost sub-circuit according to the saved control signal when the pulse light generator runs next time.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the pulse light generating circuit generator according to any one of claims 8 to 11 is implemented.

13. A pulsed light generator, characterized in that, include: A pulse lamp, and a control device for the pulse lamp according to any one of claims 1 to 7.

14. An air conditioner, characterized in that, Comprising the pulse light generator as claimed in claim 13.

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