Multi-light-source control circuit and therapeutic apparatus

Abstract

The utility model discloses a multi-light-source control circuit and a therapeutic apparatus, and relates to the technical field of multi-light-source therapy, and the multi-light-source control circuit comprises a master control module; at least two light source modules; the light source switching module is respectively connected with the main control module and the light source modules and is used for switching the light source modules in a working state; and the boosting module is respectively connected with the main control module and the light source module and is used for providing adaptive working voltage for the light source module in the working state. The utility model aims to reduce the production cost of the therapeutic apparatus and reduce the complexity of the therapeutic apparatus.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-light source treatment, in particular to a multi-light source control circuit and a treatment device. Background Art

[0002] Since traditional light source control circuits can usually only control light sources of a single band, and the phototherapy head of a therapeutic device usually integrates light sources of multiple bands according to treatment needs, light sources of different bands are usually controlled according to treatment needs. Therefore, in order to ensure that the therapeutic device can achieve independent control of light sources of multiple bands, it is necessary to set up multiple light source control circuits in the therapeutic device, which not only increases the production cost of the therapeutic device, but also increases the complexity of the therapeutic device. Utility Model Content

[0003] The main purpose of the utility model is to provide a multi-light source control circuit, aiming to reduce the production cost of a therapeutic device and reduce the complexity of the therapeutic device.

[0004] To achieve the above object, the utility model provides a multi-light source control circuit, the multi-light source control circuit comprising:

[0005] Main control module;

[0006] at least two light source modules;

[0007] A light source switching module, the light source switching module is connected to the main control module and the light source module respectively, and is used to switch the light source module in a working state;

[0008] A boost module is connected to the main control module and the light source module respectively, and is used to provide an adaptive working voltage to the light source module in a working state.

[0009] Optionally, the light source switching module includes a first resistor, a second resistor and a switch tube;

[0010] One end of the first resistor is connected to the first output end of the main control module, the other end of the first resistor is connected to one end of the second resistor and the gate of the switch tube, the drain of the switch tube is connected to the control end of the light source module, the source of the switch tube is connected to the cathode of the light source module, and the other end of the second resistor is grounded.

[0011] Optionally, the boost module includes:

[0012] A boost control unit, wherein the input end of the boost control unit is connected to the second output end of the main control module, and the output end of the boost control unit is connected to the first input end of the boost unit, and is used to control the boost unit to start or stop working according to the level state of the boost control signal output by the main control module;

[0013] A boost unit, wherein a first output end of the boost unit is connected to an anode of the light source module, and a second output end of the boost unit is connected to a cathode of the light source module, for providing an adapted working voltage to the light source module in a working state;

[0014] A power supply unit, wherein the output end of the power supply unit is connected to the second input end of the boost unit.

[0015] Optionally, the boost unit includes a boost control chip, an inductor, a diode, a first capacitor, a second capacitor and a third capacitor;

[0016] A first input end of the boost control chip is connected to an output end of the boost control unit, a second input end of the boost control chip is connected to an output end of the power supply unit and one end of the inductor, the other end of the inductor is connected to a first output end of the boost control chip and an anode of the diode, a cathode of the diode is connected to one end of the first capacitor, one end of the first capacitor is connected to one end of the second capacitor, one end of the second capacitor is connected to one end of the third capacitor, one end of the third capacitor is connected to the anode of the light source module, a second output end of the boost control chip, the other end of the first capacitor, the other end of the second capacitor and the other end of the third capacitor are grounded, and a third output end of the boost control chip is connected to the cathode of the light source module.

[0017] Optionally, the boost control unit includes a third resistor and a fourth resistor;

[0018] One end of the third resistor is connected to the second output end of the main control module, the other end of the third resistor is connected to one end of the fourth resistor and the first input end of the boost unit, and the other end of the fourth resistor is grounded.

[0019] Optionally, the boost module further includes:

[0020] An overvoltage protection unit, wherein the input end of the overvoltage protection unit is connected to the first output end of the boost unit, and the output end of the overvoltage protection unit is connected to the third input end of the boost unit, for limiting the output voltage of the boost unit.

[0021] Optionally, the boost module further includes:

[0022] A current limiting unit, one end of which is connected to the second output end of the boost unit, and the other end of which is grounded, is used to limit the working current of the light source module in the working state.

[0023] Optionally, there are multiple light source switching modules, and the number of the light source switching modules is the same as the number of the light source modules.

[0024] Optionally, the light source module is composed of a plurality of light emitting diodes, and the wavelength bands of the light source modules are different.

[0025] In addition, the utility model also provides a therapeutic device, including the above-mentioned multi-light source control circuit, and the details are referred to above and will not be repeated here.

[0026] The utility model provides a multi-light source control circuit, which includes a main control module, at least two light source modules, a light source switching module and a boost module. The light source switching module is respectively connected to the main control module and the light source module and is used to switch the light source module in a working state. The boost module is respectively connected to the main control module and the light source module and is used to provide an adaptive working voltage to the light source module in a working state.

[0027] Therefore, the utility model sets a light source switching module in the multi-light source control circuit to switch the light source module in the working state, and sets a boost module to provide an adaptive working voltage for the light source module in the working state, thereby realizing the control of light sources of multiple bands, thereby eliminating the need to set up multiple light source control circuits in the therapeutic device to realize the control of light sources of multiple bands, overcoming the technical defect that the conventional light source control circuit can usually only control a light source of a single band, which brings increased production cost and equipment complexity to the therapeutic device that needs to control light sources of multiple bands, thereby reducing not only the production cost of the therapeutic device, but also the complexity of the therapeutic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 This is a module schematic diagram of the first embodiment of the multi-light source control circuit of the utility model;

[0030] Figure 2 A schematic diagram of the structure of a light source module provided in the first embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the structure of a light source switching module provided in the first embodiment of the utility model;

[0032] Figure 4 The boost module provided for the first embodiment of the utility model includes a schematic diagram of a boost control unit, a boost unit and a power supply unit;

[0033] Figure 5 The boost module provided for the second embodiment of the utility model also includes a schematic diagram of an overvoltage protection unit;

[0034] Figure 6 The boost module provided in the third embodiment of the utility model further includes a module schematic diagram of a current limiting unit;

[0035] Figure 7 This is a structural schematic diagram of a boost module involved in the utility model;

[0036] Figure 8 It is a module diagram of a fourth embodiment of the multi-light source control circuit of the utility model.

[0037] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0038] Description of Figure Numbers:

[0039] Label name Label name 10 Main control module R1~R7 resistance 20 Light source switching module C1~C5 capacitance 30 Light source module Q1 Switching tube 40 Boost module L1 inductance 41 Boost control unit FB1 Fuse 42 Boost unit LED1~LED18 Light Emitting Diode 43 Power supply unit D1 diode 44 Overvoltage protection unit VDD power supply 45 Current limiting unit EN_PWM Light source control signal U1 Boost control chip LED_CTR Boost control signal DETAILED DESCRIPTION

[0040] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] Since traditional light source control circuits can usually only control light sources of a single band, and the phototherapy head of a therapeutic device usually integrates light sources of multiple bands according to treatment needs, light sources of different bands are usually controlled according to treatment needs. Therefore, in order to ensure that the therapeutic device can control light sources of multiple bands, it is necessary to set up multiple light source control circuits in the therapeutic device, which not only increases the production cost of the therapeutic device, but also increases the complexity of the therapeutic device.

[0044] Based on this, the utility model provides a multi-light source control circuit. In the first embodiment of the utility model, please refer to Figure 1 The multi-light source control circuit includes a main control module 10, a light source switching module 20, at least two light source modules 30, and a boost module 40. The first output end of the main control module 10 is connected to the input end of the light source switching module 20, the output end of the light source switching module 20 is connected to the control end of the light source module 30, the input end of the boost module 40 is connected to the second output end of the main control module 10, the first output end of the boost module 40 is connected to the anode LED+ of the light source module 30, and the second output end of the boost module 40 is connected to the cathode LED- of the light source module 30; wherein the light source switching module 20 is used to switch the light source module 30 in a working state; and the boost module 40 is used to provide an adaptive working voltage to the light source module 30 in a working state.

[0045] It should be noted that the main control module 10 can be composed of a main control chip, which can be a chip with control capabilities such as an FPGA (Field-Programmable Gate Array) chip, an STM32 chip, an STM51 chip, an ARM (Advanced RISC Machines) chip, etc. This embodiment does not specifically limit the main control chip.

[0046] In addition, it should be noted that each light source module 30 can be integrated into the same treatment head or into different treatment heads, and this embodiment does not specifically limit this. The light source module 30 is composed of a plurality of light emitting diodes, and the wavelength bands of each light source module 30 are different. For example, taking two light source modules 30 as an example, please refer to Figure 2 The light emitting diodes LED1-LED9 constitute a light source module 30 of one wavelength band, and the light emitting diodes LED10-LED18 constitute a light source module 30 of another wavelength band.

[0047] It is understandable that when different treatment heads are respectively integrated with a light source module 30 of a certain wavelength, the operating voltages required for each treatment head to operate the light source module 30 of its own wavelength are different, and the boost module 40 actually provides an adapted operating voltage to the treatment head in the working state to control the light source module 30 in the treatment head to enter the working state. In addition, when different treatment heads are respectively integrated with a light source module 30 of a certain wavelength, the boost module 40 may not need to be connected to all the light source modules 30, but only needs to be connected to the light source module 30 in the treatment head connected to the handle.

[0048] In addition, when the same treatment head integrates light source modules 30 of various wavelength bands, the operating voltages required by the treatment head when operating light source modules 30 of different wavelength bands are also different.

[0049] The light source switching module 20 essentially switches the light source module 30 in the working state by connecting and disconnecting the circuit branch between the light source module 30 and the light source module 30. Specifically, the light source switching module 20 controls the internal switch tube to close according to the light source control enable signal output by the main control module 10, so as to connect the circuit branch between the light source switching module 20 and the light source module 30, thereby controlling the corresponding light source module 30 to enter the working state; the light source switching module 20 controls the internal switch tube to disconnect according to the light source control shutdown signal output by the main control module 10, so as to disconnect the circuit branch between the light source switching module 20 and the light source module 30, thereby controlling the corresponding light source module 30 to exit the working state.

[0050] In one possible implementation, please refer to Figure 3 The light source switching module 20 may include a first resistor R1, a second resistor R2 and a switch tube Q1; one end of the first resistor R1 is connected to the first output end of the main control module 10, the other end of the first resistor R1 is connected to one end of the second resistor R2 and the gate of the switch tube Q1, the drain of the switch tube Q1 is connected to the control end R_LED- of the light source module 30, the source of the switch tube Q1 is connected to the cathode LED- of the light source module 30, and the other end of the second resistor R2 is grounded.

[0051] It should be noted that the switch tube Q1 can be a triode, a MOS tube, a MOSFET, an IGBT, a SiC, a relay, an analog switch, etc., and this embodiment does not specifically limit this.

[0052] It can be understood that by adjusting the level state of the light source control signal EN_PWM output by the main control module 10 to the first resistor R1, the opening and closing of the switch tube Q1 can be controlled. When the level state of the light source control signal EN_PWM is a high level state, it indicates that the light source control signal output by the main control module 10 to the first resistor R1 is actually a light source control enable signal, and the switch tube Q1 will be closed; and when the level state of the light source control signal EN_PWM is a low level state, it indicates that the light source control signal output by the main control module 10 to the first resistor R1 is actually a light source control shutdown signal, and the switch tube Q1 will be disconnected.

[0053] In one possible implementation, please refer to Figure 4 The boost module 40 may include a boost control unit 41, a boost unit 42 and a power supply unit 43; the input end of the boost control unit 41 is connected to the second output end of the main control module 10, the output end of the boost control unit 41 is connected to the first input end of the boost unit 42, the first output end of the boost unit 42 is connected to the anode LED+ of the light source module 30, the second output end of the boost unit 42 is connected to the cathode LED- of the light source module 30, and the output end of the power supply unit 43 is connected to the second input end of the boost unit 42; wherein, the boost control unit 41 is used to control the boost unit 42 to start or stop working according to the level state of the boost control signal LED_CTR output by the main control module 10; the boost unit 42 is used to provide an adaptive working voltage to the light source module 30 in the working state.

[0054] It should be noted that when the boost control unit 41 controls the boost unit 42 to start working or stop working according to the level state of the boost control signal LED_CTR output by the received main control module 10, if the boost unit 42 belongs to the enable type of high-level enable, then when the level state of the boost control signal LED_CTR belongs to the high-level state, the boost control unit 41 will control the boost unit 42 to start working, and when the level state of the boost control signal LED_CTR belongs to the low-level state, the boost control unit 41 will control the boost unit 42 to stop working; if the boost unit 42 belongs to the enable type of low-level enable, then when the level state of the boost control signal LED_CTR belongs to the high-level state, the boost control unit 41 will control the boost unit 42 to stop working, and when the level state of the boost control signal LED_CTR belongs to the low-level state, the boost control unit 41 will control the boost unit 42 to start working. This embodiment does not specifically limit the enable type of the boost unit 42.

[0055] In a feasible implementation manner, the boost control unit 41 may also be used to adjust the light source brightness of the light source module 30 according to the duty cycle of the boost control signal LED_CTR.

[0056] In this embodiment, a light source switching module 20 is set in the multi-light source control circuit to switch the light source module 30 in the working state, and a boost module 40 is set to provide an adaptive working voltage for the light source module 30 in the working state, thereby realizing the control of light sources of multiple bands. Therefore, there is no need to set up multiple light source control circuits in the therapeutic device to realize the control of light sources of multiple bands, thereby overcoming the technical defect that the conventional light source control circuit can usually only control a light source of a single band, which brings increased production cost and equipment complexity to the therapeutic device that needs to control light sources of multiple bands. Not only the production cost of the therapeutic device is reduced, but also the complexity of the therapeutic device is reduced.

[0057] Based on the above first embodiment, a second embodiment of the multi-light source control circuit of the utility model is proposed. In the second embodiment of the utility model, please refer to Figure 5 The boost module 40 may further include an overvoltage protection unit 44, an input end of the overvoltage protection unit 44 is connected to the first output end of the boost unit 42, and an output end of the overvoltage protection unit 44 is connected to the third input end of the boost unit 42; the overvoltage protection unit 44 is used to limit the output voltage of the boost unit 42.

[0058] In this embodiment, an overvoltage protection unit 44 is provided in the boost module 40 to prevent the boost unit 42 in the boost module 40 from outputting an excessively high voltage during the boost process to damage the multi-light source control circuit, thereby extending the service life of the multi-light source control circuit.

[0059] Based on the above first embodiment and / or second embodiment, a third embodiment of the multi-light source control circuit of the utility model is proposed. In the third embodiment of the utility model, please refer to Figure 6 The boost module 40 may further include a current limiting unit 45, one end of which is connected to the second output end of the boost unit 42, and the other end of which is grounded; the current limiting unit 45 is used to limit the working current of the light source module 30 in the working state.

[0060] In this embodiment, a current limiting unit 45 is provided in the boost module 40 to limit the working current of the light source module 30 in working state, so as to avoid the working current of the light source module 30 in working state being too large and causing overcurrent in the whole multi-light source control circuit.

[0061] For example, please refer to Figure 7, the boost control unit 41, boost unit 42, power supply unit 43, overvoltage protection unit 44 and current limiting unit 45 mentioned in the above embodiments can be set according to actual conditions. For example, the boost control unit 41 may include a third resistor R3 and a fourth resistor R4, the boost unit 42 may include a boost control chip U1, an inductor L1, a diode D1, a first capacitor C1, a second capacitor C2 and a third capacitor C3, the power supply unit 43 may include a fuse FB1, a fourth capacitor C4 and a fifth capacitor C5, the overvoltage protection unit 44 may include a fifth resistor R5 and a sixth resistor R6, and the current limiting unit 45 may include a seventh resistor R7;

[0062] The VIN end of the boost control chip U1 is connected to one end of the inductor L1 and one end of the fifth capacitor C5, the other end of the inductor L1 is connected to the SW end of the boost control chip U1 and the anode of the diode D1, the cathode of the diode D1 is connected to one end of the first capacitor C1, one end of the first capacitor C1 is connected to one end of the second capacitor C2, one end of the second capacitor C2 is connected to one end of the third capacitor C3, one end of the third capacitor C3 is connected to the anode LED+ of the light source module 30, the GND end of the boost control chip U1, the other end of the first capacitor C1, the other end of the second capacitor C2 and the other end of the third capacitor C3 are grounded, the FB end of the boost control chip U1 is connected to one end of the seventh resistor R7 and the cathode LED- of the light source module 30, and the other end of the seventh resistor R7 is grounded.

[0063] One end of the third resistor R3 is connected to the second output end of the main control module 10 , the other end of the third resistor R3 is connected to one end of the fourth resistor R4 and the CTRL end of the boost control chip U1 , and the other end of the fourth resistor R4 is grounded.

[0064] One end of the fuse FB1 is connected to the power supply VDD, the other end of the fuse FB1 is connected to one end of the fourth capacitor C4, one end of the fourth capacitor C4 is connected to one end of the fifth capacitor C5, and the other end of the fourth capacitor C4 and the other end of the fifth capacitor C5 are grounded.

[0065] One end of the fifth resistor R5 is connected to one end of the third capacitor C3, the other end of the fifth resistor R5 is connected to one end of the sixth resistor R6 and the 0V end of the boost control chip U1, and the other end of the sixth resistor R6 is grounded.

[0066] The above examples are only used to assist in understanding the present invention and do not constitute a limitation on the therapeutic device of the present invention. More simple transformations based on this technical concept are all within the protection scope of the present invention.

[0067] Based on the above first embodiment, second embodiment and / or third embodiment, a fourth embodiment of the multi-light source control circuit of the utility model is proposed. In the fourth embodiment of the utility model, please refer to Figure 8 The number of the light source switching modules 20 can be multiple, and the number of the light source switching modules 20 is the same as the number of the light source modules 30.

[0068] Exemplarily, to facilitate understanding of the implementation principle of the present embodiment, a multi-light source control circuit includes two light source switching modules 20 (a first light source switching module and a second light source switching module) and two light source modules 30 (a first light source module and a second light source module), the first light source switching module is connected to the first light source module, and the second light source switching module is connected to the second light source module. If the first light source switching module receives a light source control enable signal output by the main control module 10, and the second light source switching module receives a light source control shutdown signal output by the main control module 10, the first light source switching module will control the internal switch tube to close to connect the circuit branch between the first light source switching module and the first light source module, thereby controlling the first light source module to enter the working state, and the second light source switching module will control the internal switch tube to disconnect to shut off the circuit branch between the second light source switching module and the second light source module, thereby controlling the second light source module to exit the working state.

[0069] The utility model also provides a therapeutic device, which includes a multi-light source control circuit. The structure of the multi-light source control circuit can refer to the above embodiment and will not be described in detail here. As it should be, since the therapeutic device of this embodiment includes all the technical solutions of all the embodiments of the multi-light source control circuit, and the technical effects achieved are also exactly the same, they will not be described in detail here.

[0070] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-light source control circuit, characterized in that: The multi-light source control circuit comprises: Main control module; at least two light source modules; A light source switching module, the light source switching module is connected to the main control module and the light source module respectively, and is used to switch the light source module in a working state; A boost module is connected to the main control module and the light source module respectively, and is used to provide an adaptive working voltage to the light source module in a working state.

2. The multi-light source control circuit according to claim 1, characterized in that: The light source switching module includes a first resistor, a second resistor and a switch tube; One end of the first resistor is connected to the first output end of the main control module, the other end of the first resistor is connected to one end of the second resistor and the gate of the switch tube, the drain of the switch tube is connected to the control end of the light source module, the source of the switch tube is connected to the cathode of the light source module, and the other end of the second resistor is grounded.

3. The multi-light source control circuit according to claim 1, characterized in that: The boost module comprises: A boost control unit, wherein the input end of the boost control unit is connected to the second output end of the main control module, and the output end of the boost control unit is connected to the first input end of the boost unit, and is used to control the boost unit to start or stop working according to the level state of the boost control signal output by the main control module; A boost unit, wherein a first output end of the boost unit is connected to an anode of the light source module, and a second output end of the boost unit is connected to a cathode of the light source module, for providing an adapted working voltage to the light source module in a working state; A power supply unit, wherein the output end of the power supply unit is connected to the second input end of the boost unit.

4. The multi-light source control circuit according to claim 3, characterized in that: The boost unit includes a boost control chip, an inductor, a diode, a first capacitor, a second capacitor and a third capacitor; A first input end of the boost control chip is connected to an output end of the boost control unit, a second input end of the boost control chip is connected to an output end of the power supply unit and one end of the inductor, the other end of the inductor is connected to a first output end of the boost control chip and an anode of the diode, a cathode of the diode is connected to one end of the first capacitor, one end of the first capacitor is connected to one end of the second capacitor, one end of the second capacitor is connected to one end of the third capacitor, one end of the third capacitor is connected to the anode of the light source module, a second output end of the boost control chip, the other end of the first capacitor, the other end of the second capacitor and the other end of the third capacitor are grounded, and a third output end of the boost control chip is connected to the cathode of the light source module.

5. The multi-light source control circuit according to claim 3, characterized in that: The boost control unit includes a third resistor and a fourth resistor; One end of the third resistor is connected to the second output end of the main control module, the other end of the third resistor is connected to one end of the fourth resistor and the first input end of the boost unit, and the other end of the fourth resistor is grounded.

6. The multi-light source control circuit according to claim 3, characterized in that: The boost module further comprises: An overvoltage protection unit, wherein the input end of the overvoltage protection unit is connected to the first output end of the boost unit, and the output end of the overvoltage protection unit is connected to the third input end of the boost unit, for limiting the output voltage of the boost unit.

7. The multi-light source control circuit according to claim 3, characterized in that: The boost module further comprises: A current limiting unit, one end of which is connected to the second output end of the boost unit, and the other end of which is grounded, is used to limit the working current of the light source module in the working state.

8. The multi-light source control circuit according to any one of claims 1 to 7, characterized in that: The number of the light source switching modules is multiple, and the number of the light source switching modules is the same as the number of the light source modules.

9. The multi-light source control circuit according to any one of claims 1 to 7, characterized in that: The light source module is composed of a plurality of light emitting diodes, and the wavelength bands of the light source modules are different.

10. A therapeutic apparatus, characterized in that: The therapeutic apparatus comprises a multi-light source control circuit as described in any one of claims 1 to 9.

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