CN212305721U - Drive device - Google Patents
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- CN212305721U CN212305721U CN202021235081.0U CN202021235081U CN212305721U CN 212305721 U CN212305721 U CN 212305721U CN 202021235081 U CN202021235081 U CN 202021235081U CN 212305721 U CN212305721 U CN 212305721U
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Abstract
The utility model discloses a driving device, include: the device comprises a voltage processing module, a constant current conversion module, a DALI signal module and a grouping module, wherein the voltage processing module is used for acquiring a voltage signal and processing the voltage signal; the constant current conversion module is used for performing constant current conversion on the processed voltage signal and then outputting a constant current signal; the DALI signal module is used for providing a DALI control signal for the constant current conversion module; and the grouping module is used for dividing the constant current signals into multiple paths to be independently output. The utility model discloses can handle voltage signal through voltage processing module to export in the constant current conversion module, the constant current conversion module converts above-mentioned voltage signal to constant current signal, and sends control signal to the group module through DALI signal module, through the above-mentioned constant current signal of control signal control drive multichannel LED, thereby finally can realize through DALI signal constant current control multichannel LED autonomous working.
Description
Technical Field
The utility model belongs to the technical field of the power technique and specifically relates to a drive arrangement is related to.
Background
With the development of science and technology, the application of various LED products improves the living standard of human beings and improves the living quality of human beings, such as a supermarket, a large-scale market, a conference room, a multifunctional hall and the like.
Any electronic product has a service life, the LED lamp is no exception, the service life of the LED lamp depends on the quality of the LED driving device to a great extent, and the service life of the LED lamp can be really prolonged by using a good driving device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. For this reason, the utility model provides a driving device, the utility model discloses can handle voltage signal through voltage processing module to in exporting the constant current conversion module, the constant current conversion module converts the constant current signal to above-mentioned voltage signal, and sends control signal to grouping module through DALI signal module, through the above-mentioned constant current signal of control signal control drive multichannel LED, thereby finally can realize through DALI signal constant current control multichannel LED autonomous working.
According to the utility model discloses drive arrangement, include: the voltage processing module is used for acquiring a voltage signal and processing the voltage signal; the constant current conversion module is connected with the voltage processing module and is used for performing constant current conversion on the processed voltage signal and outputting a constant current signal; the DALI signal module is connected with the constant current conversion module and used for providing a DALI control signal for the constant current conversion module, and the constant current conversion module outputs the constant current signal according to the DALI control signal; the grouping module is respectively connected with the voltage processing module and the constant current conversion module and is used for dividing the constant current signals into multiple paths to be independently output, and the voltage processing module provides the processed voltage signals for the grouping module.
According to the utility model discloses drive arrangement has following beneficial effect at least: the voltage processing module can process the voltage signal and output the voltage signal to the constant current conversion module, the constant current conversion module converts the voltage signal into a constant current signal, the DALI signal module sends a control signal to the grouping module, and the control signal controls the constant current signal to drive the multi-path LEDs, so that the DALI signal can be used for controlling the multi-path LEDs to work independently at constant current.
According to some embodiments of the present invention, further comprising: the voltage conversion module is respectively connected with the voltage processing module, the constant current conversion module and the DALI signal module and is used for providing the voltage signals for the voltage processing module, the constant current conversion module and the DALI signal module.
According to some embodiments of the present invention, the voltage processing module comprises: the voltage stabilizing unit is connected with the voltage conversion module and is used for stabilizing the voltage of the voltage signal and outputting a voltage-stabilized signal; the reference voltage generating unit is connected with the voltage stabilizing unit and used for generating a reference voltage according to the voltage stabilizing signal; and the control protection unit is respectively connected with the reference voltage generation unit, the constant current conversion module and the grouping module, and is used for carrying out protection processing according to a voltage signal output by the reference voltage and then transmitting the voltage signal to the constant current conversion module and the grouping module.
According to some embodiments of the invention, the control protection unit comprises: the overvoltage protection unit is connected with the reference voltage generation unit and is used for performing overvoltage protection on the reference voltage; the over-temperature protection unit is connected with the overvoltage protection unit and is used for performing over-temperature protection on a voltage signal output by the overvoltage protection unit; and the overcurrent protection unit is respectively connected with the over-temperature protection unit and the grouping module and is used for carrying out overcurrent protection on the output signals of the over-temperature protection unit.
According to some embodiments of the present invention, the constant current conversion module comprises: the coding and decoding unit is respectively connected with the voltage conversion module, the overvoltage protection unit and the DALI signal module and is used for performing constant current conversion on the voltage signal output by the overvoltage protection unit and then outputting the voltage signal; and the constant current protection unit is respectively connected with the coding unit and the grouping module and is used for performing self-locking protection and overcurrent protection on the coding unit.
According to some embodiments of the invention, the constant current protection unit comprises a PWM circuit; the PWM circuit is connected with the coding and decoding unit and used for providing PWM type current.
According to some embodiments of the present invention, the voltage conversion module is configured to convert an externally input high voltage signal into a voltage signal of dc 12V and/or dc 24V and/or dc 48V and then input the voltage signal to the voltage processing module, so that the voltage processing module obtains the voltage signal.
According to some embodiments of the invention, the externally input high voltage signal is an ac 220V voltage signal.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a driving device according to an embodiment of the present invention;
fig. 2 is a schematic view of a driving device according to another embodiment of the present invention;
fig. 3 is a schematic view of a driving device according to another embodiment of the present invention;
fig. 4 is a schematic view of a driving device according to another embodiment of the present invention;
fig. 5 is a schematic view of a driving device according to another embodiment of the present invention;
fig. 6 is a schematic wiring diagram of a driving device according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a driving device according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a driving device according to another embodiment of the present invention.
Reference numerals:
the voltage processing module 100, the constant current conversion module 200, the DALI signal module 300, the grouping module 400, the voltage conversion module 500, the load 600, the voltage stabilizing unit 101, the reference voltage generating unit 102, the control protection unit 103, the overvoltage protection unit 113, the over-temperature protection unit 123, the overcurrent protection unit 133, the coding and decoding unit 201, and the constant current protection unit 202.
Detailed Description
DALI: digital Addressable Lighting Interface, a digitally positionable Lighting control system.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
With the development of science and technology and the improvement of living standard of people, various LED products are beginning to enter people's daily life, such as a supermarket, a large-scale market, a conference room, a multi-functional hall, and the like. Since the LED product is available, a driving device of the LED product is also necessary, and a good driving device can really prolong the service life of the LED lamp.
In the following embodiments, the load driven by the driving device is exemplified by an LED lamp. It will be appreciated that the load driven by the drive means may also be other types of loads, such as lasers, stepper motors, etc.
Referring to fig. 1, a schematic diagram of a driving device according to an embodiment of the present invention is shown;
in some embodiments, the driving device comprises: the voltage processing module 100 acquires a voltage signal and processes the voltage signal, the constant current conversion module 200 is connected with the voltage processing module 100 and is used for performing constant current conversion on the processed voltage signal and outputting a constant current signal, the DALI signal module 300 is connected with the constant current conversion module 200 and is used for providing a DALI control signal for the constant current conversion module 200, the constant current conversion module 200 outputs a constant current signal according to the DALI control signal, the grouping module 400 is respectively connected with the voltage processing module 100 and the constant current conversion module 200 and is used for dividing the constant current signal into multiple paths to be independently output, and the voltage processing module 100 provides the processed voltage signal for the grouping module 400.
It can be understood that the DALI signal module is connected to the DALI controller, and sends a control signal through the DALI controller, and this embodiment can realize that DALI signal control constant current output drives multiple paths of LEDs to work independently, effectively improves the application range of LED lamps, realizes that one driving device can drive multiple LED lamps or multiple groups of LEDs, and saves driving cost.
Referring to fig. 2, a schematic view of a driving device according to another embodiment of the present invention is shown;
in some embodiments, the driving apparatus further includes a voltage conversion module 500, and the voltage conversion module 500 is respectively connected to the voltage processing module 100, the constant current conversion module 200, and the DALI signal module 300, and is configured to provide voltage signals to the voltage processing module 100, the constant current conversion module 200, and the DALI signal module 300, so as to supply power to the voltage processing module 100, the constant current conversion module 200, and the DALI signal module 300.
The voltage conversion module 500 may convert a high voltage signal into a low voltage signal, where the high voltage signal is an ac 220V voltage signal, and the low voltage signal includes one or more of the following: direct current 12V, direct current 24V and direct current 48V, it can be understood that the application of the LED is different, and the required driving current is also different, and the voltage setting of the embodiment can meet the requirements of each occasion.
Referring to fig. 3, a schematic view of a driving device according to another embodiment of the present invention is shown;
in some embodiments, the voltage processing module 100 includes a voltage stabilizing unit 101, a reference voltage generating unit 102, and a control protection unit 103, where the voltage stabilizing unit 101 is connected to the voltage converting module 500, and is configured to output a stabilized voltage signal after stabilizing the voltage signal; the reference voltage generating unit 102 is connected to the voltage stabilizing unit 101, and configured to generate a reference voltage according to the stabilized voltage signal, so as to provide an accurate reference voltage for the device; the control protection unit 103 is respectively connected to the reference voltage generation unit 102, the constant current conversion module 200, and the grouping module 400, and is configured to perform protection processing on a voltage signal output according to a reference voltage, and transmit the voltage signal to the constant current conversion module 200 and the grouping module 400, so as to provide a protection function for a circuit.
Specifically, the voltage stabilization unit 101 is a system power supply voltage stabilization module, and provides a stable power supply for the whole system without failure caused by interference of input power supply transient; the reference voltage generating unit 102 establishes a reference voltage reference point for other functional modules as reference voltages of different functional modules; the control protection unit 103 combines the voltage generated by the reference voltage generation unit 102 to compare and detect the input voltage, the output total current and the system internal temperature, so as to protect the circuit from being damaged by over-high voltage, high current and over-temperature.
Referring to fig. 4, a schematic view of a driving device according to another embodiment of the present invention is shown;
in some embodiments, the control protection unit 103 includes: an overvoltage protection unit 113, an over-temperature protection unit 123, and an overcurrent protection unit 133, where the overvoltage protection unit 113 is connected to the reference voltage generation unit 102, and is configured to provide an overvoltage protection function; the over-temperature protection unit 123 is connected with the overvoltage protection unit 113 and is used for providing an over-temperature protection function; the over-current protection unit 133 is connected to the over-temperature protection unit 123 and the grouping module 400, respectively, for providing an over-current protection function.
Specifically, the overcurrent protection unit 133 is formed by an operational amplifier forming adder, and can add the load currents output by the constant current protection unit 202 and convert the load currents into voltages, and send the converted voltages to the control protection unit 103 to make an overload determination, so as to protect the entire load circuit from being damaged due to overcurrent.
Fig. 5 is a schematic view of a driving device according to another embodiment of the present invention;
in some embodiments, the constant current conversion module includes a coding unit 201 and a constant current protection unit 202; the encoding and decoding unit 201 is respectively connected with the voltage conversion module 500, the overvoltage protection unit 113 and the DALI signal module 300, and is configured to perform constant current conversion on a voltage signal output by the overvoltage protection unit 113 and output the voltage signal; the constant current protection unit 202 is connected to the encoding and decoding unit 201 and the grouping module 400, respectively, and is configured to provide self-locking protection and overcurrent protection for the encoding and decoding unit 201.
The constant current protection unit 202 includes a PWM circuit, and the PWM circuit is connected to the coding and decoding unit 201 and is used for providing a PWM type current.
The encoding and decoding unit 201 can feed back and update the settings and attributes thereof corresponding to the command requirements of the DALI signal module 300, or adjust the dimming output to the constant current protection unit 202 corresponding to the command requirements of the control end input by the DALI signal module 300, wherein the output is a PWM type signal; the encoding and decoding unit 201 can also read the overload state of the constant current protection unit 202 according to the command of the control end of the corresponding DALI signal module 300 and feed back the overload state to the DALI signal module 300, so that the whole device can meet the electrical specification and protocol requirements of the DALI signal module 300.
For example, if the coding and decoding unit 201 has one output signal, the constant current protection unit 202 receives one output signal, and the coding and decoding unit 201 has N output signals, the constant current protection unit 202 receives N output signals, and each path corresponds to one another, and the function and the attribute of each path are the same.
The constant current protection unit 202 can convert the PWM input voltage corresponding to the coding and decoding unit 201 into a PWM type current output, the constant current protection unit 202 has an output load current detection function, can perform an intercepting operation on an overload current, and can also self-lock an intercepting state at the same time until the input direct current power supply is removed, and the constant current protection unit 202 feeds back the load current to the coding and decoding unit 201 to further respond to the input instruction of the DALI signal module 300.
The embodiment can realize the response and feedback of the driving device to the DALI signal module 300 signal, and can realize self-locking protection and overcurrent protection, thereby realizing the beneficial effects of saving electric energy and guaranteeing the safety of the device.
Fig. 6 is a schematic wiring diagram of a driving device according to an embodiment of the present invention;
in some embodiments, the voltage conversion module 500 may convert 220V ac power into 12V, 24V, 48V dc power for output, which may be output in an alternative manner according to actual application scenarios, or may be output in a random combination manner. The positive and negative electrodes of the direct current-converted DALI signal module 300 are respectively connected with a plurality of groups of LED loads 600 which are independently output, and in addition, the DALI signal module 300 can also output DALI control signals to each group of LED loads 600 which are independently output, so that the independent control output of each group of LED loads 600 is realized, and the effect of safe and stable LED driving is realized.
Fig. 7 is a schematic circuit diagram of a driving device according to an embodiment of the present invention;
in some embodiments, in particular, IC11 is a switching regulator, which provides a stable voltage and sufficient current for the entire system to operate; in addition, the IC12 is a series regulator, which mainly supplies power to the main controller MCU51 in the coding and decoding unit 201; the switching regulator IC11 may use an output stage to repeatedly switch "on" and "off states to generate an output voltage along with capacitors and inductors in the circuit. The series regulator IC12 can function as a dc regulator.
Specifically, after the series voltage regulator IC2 in the circuit generates 2.5V voltage, the voltage is distributed to the operational amplifier voltage comparator OP2 as a buffer to generate a reference voltage Verf output, and the reference voltage provides a reference basis for the whole circuit to ensure that other related modules can stably work under various conditions without being influenced by external voltage, current and temperature.
Specifically, the control protection unit 103 is divided into an overvoltage protection unit 113, an over-temperature protection unit 123 and an overcurrent protection unit 133, wherein a voltage comparator OP31 and a diode D31 in a circuit of the overvoltage protection unit 113 form a voltage comparator and a self-locking circuit, an input end of a negative phase end of the voltage comparator OP31 is connected to a voltage output of the reference voltage generation unit 102, the reference voltage Verf is compared with an input power voltage Vsys, if the power voltage Vsys is higher than the reference voltage Verf at the moment, i.e., at the time of overvoltage, an output of the voltage comparator OP31 becomes a positive voltage and is permanently self-locked until the power is turned off, and the output positive voltage is also sent to the constant current conversion module 200 to cut off the current of the LED load 600, so as to complete the overvoltage protection function.
Specifically, the voltage comparator OP32 and the diode D32 in the over-temperature protection unit 123 circuit form a self-locking circuit, the positive input of the voltage comparator OP32 is connected to the voltage output Verf of the reference voltage generation unit 102, the voltage value is compared with the voltage at two ends of the NTC, if the voltage at two ends of the NTC is lower than the reference voltage, the NTC is in an over-temperature state, the output of the voltage comparator OP32 becomes a positive voltage and is permanently self-locked until the power is turned off, and the output positive voltage is sent to the constant current conversion module 200 to cut off the current of the LED load 600, so as to complete the over-temperature protection function.
Specifically, the voltage comparator OP33 and the diode D33 in the circuit of the over-current protection unit 133 form a self-locking circuit, the negative input terminal of the voltage comparator OP33 is connected to the voltage output Verf of the reference voltage generation unit 102, the voltage value is compared with the voltage value fed back by the voltage comparator OP41 to the LED load 600, if the feedback voltage of the LED load 600 is higher than the reference voltage, that is, the circuit is over-current, the output of the voltage comparator OP33 becomes a positive voltage and is permanently self-locked until the power supply is turned off, and the output positive voltage is also sent to the constant current conversion module 200 to cut off the current of the LED load 600, so as to complete the over-current protection function.
The voltage comparator OP41 in the circuit forms an adder circuit, the input of which is an equivalent voltage obtained by extracting the current of the load 600 from the grouping module 400, wherein the current is converted into a voltage composed of the series resistor R6x in the constant current protection unit 202, it can be understood that one or more groups of combined voltages separated from the grouping module 400 are fed into the voltage comparator OP41 to generate a summed voltage, and the overcurrent protection function of the total current of the rear-end LED load 600 is realized by the summed voltage.
Referring to fig. 8, a schematic circuit diagram of a driving apparatus according to another embodiment of the present invention is shown.
In some embodiments, the codec unit 201 mainly includes a photo coupler OPT51, a photo coupler OPT52, and a main controller MCU51, and the photo coupler OPT51 and the photo coupler OPT52 in the circuit are configured to meet the requirement of electrical isolation in the DALI protocol transmitted by the DALI signal module 300, and also provide the system with the functions of potential conversion and bidirectional communication in the DALI protocol. The control signal after the potential conversion of the photocoupler OPT51 is transmitted to the main controller MCU51, the main controller MCU51 processes the control signal, and since the main controller MCU51 is burned with a software program, the control signal can correspond to the DALI protocol command one by one, and after the command is decoded and operated, the output result of the main controller MCU51 is transmitted to the constant current protection module 202 in a PWM manner for dimming operation. The main controller can be a single chip microcomputer, a PLC and other controllers capable of playing a main control role.
The photoelectric coupler OPT52 is used for reading back hardware setting and state instructions from the DALI protocol, the main controller MCU51 processes the hardware setting and state instructions according to the reading back instructions of the input control end, and performs potential conversion on appropriate data through the photoelectric coupler OPT52 so as to respond to the reading back instructions of the input control end.
It can be understood that the codec units 201 and the constant current protection modules 202 may be one or multiple paths, and correspond to each other, where each path of codec unit 201 has the same operation mode and the same hardware, and the embedded program code is configured, and each path of constant current protection module 202 also has the same hardware and function.
Specifically, the triode Q61, the triode Q62, and the triode Q63 in the circuit of the constant current protection module 202 form an output stage, which directly reacts to the PWM output of the codec unit 201, so that a group of load currents in the grouping module 400 are timely turned on or off according to the DALI protocol control command output by the controller MCU51, and the output is implemented in a PWM form, which can be understood as a PWM constant current form.
Specifically, the constant current protection module 202 is connected to the grouping module 400, and the grouping module 400 is connected to the LED load 600, so that the LED load 600 can be driven by a PWM constant current signal output by the front end circuit, and the number of the rear end LED loads 600 is determined according to the number of the front end codec units 201 and the constant current protection modules 202, in this embodiment, the number of the front end codec units 201 and the constant current protection modules 202 corresponds to the number of the rear end LED loads 600 one by one, that is, one front end codec unit 201, one constant current protection module 202, one LED load 600 correspond to each other, and N front end codec units 201, N constant current protection modules 202, and N LED loads 600 correspond to each other.
It can be understood that, in the circuit, the voltage comparator OP61 and the diode D61 form a self-locking circuit, the negative input terminal of the voltage comparator OP61 is connected with the reference voltage generated by the reference voltage generating unit 102, the reference voltage is compared with the voltage of the LED load 600 fed back from the resistor R6x, if the feedback voltage of the LED load 600 is higher than the reference voltage, that is, there is an overcurrent phenomenon, the output of the voltage comparator OP61 becomes a positive voltage and is permanently self-locked until the power is turned off, thereby implementing the self-locking function; the output positive voltage is sent to the transistor Q64 and then to the output terminal, i.e., the grouping module 400, so that the current of the load LED is cut off to complete the overcurrent protection function. The transistor Q64 is also connected to the overcurrent protection unit 133 through Vprotect, which plays a role of total current overcurrent protection, and stops supplying power to the LED load 600 connected to the back-end grouping module 400 during overcurrent.
The voltage identifiers Vsys, Vref, Vmcu, and Vprotect related to the circuit in the above embodiment are all voltage access points, and the same identifier in the circuit has the same voltage access, that is, the same connection relationship.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A drive device, comprising:
the voltage processing module is used for acquiring a voltage signal and processing the voltage signal;
the constant current conversion module is connected with the voltage processing module and is used for performing constant current conversion on the processed voltage signal and outputting a constant current signal;
the DALI signal module is connected with the constant current conversion module and used for providing a DALI control signal for the constant current conversion module, and the constant current conversion module outputs the constant current signal according to the DALI control signal;
the grouping module is respectively connected with the voltage processing module and the constant current conversion module and is used for dividing the constant current signals into multiple paths to be independently output, and the voltage processing module provides the processed voltage signals for the grouping module.
2. The drive device according to claim 1, further comprising:
the voltage conversion module is respectively connected with the voltage processing module, the constant current conversion module and the DALI signal module and is used for providing the voltage signals for the voltage processing module, the constant current conversion module and the DALI signal module.
3. The driving device according to claim 2, wherein the voltage processing module comprises:
the voltage stabilizing unit is connected with the voltage conversion module and is used for stabilizing the voltage of the voltage signal and outputting a voltage-stabilized signal;
the reference voltage generating unit is connected with the voltage stabilizing unit and used for generating a reference voltage according to the voltage stabilizing signal;
and the control protection unit is respectively connected with the reference voltage generation unit, the constant current conversion module and the grouping module, and is used for carrying out protection processing according to a voltage signal output by the reference voltage and then transmitting the voltage signal to the constant current conversion module and the grouping module.
4. The drive device according to claim 3, wherein the control protection unit comprises:
the overvoltage protection unit is connected with the reference voltage generation unit and is used for performing overvoltage protection on the reference voltage;
the over-temperature protection unit is connected with the overvoltage protection unit and is used for performing over-temperature protection on a voltage signal output by the overvoltage protection unit;
and the overcurrent protection unit is respectively connected with the over-temperature protection unit and the grouping module and is used for carrying out overcurrent protection on the output signals of the over-temperature protection unit.
5. The driving device according to claim 4, wherein the constant current conversion module comprises:
the coding and decoding unit is respectively connected with the voltage conversion module, the overvoltage protection unit and the DALI signal module and is used for performing constant current conversion on the voltage signal output by the overvoltage protection unit and then outputting the voltage signal;
and the constant current protection unit is respectively connected with the coding unit and the grouping module and is used for performing self-locking protection and overcurrent protection on the coding unit.
6. The driving device according to claim 5, wherein the constant current protection unit includes: and the PWM circuit is connected with the coding and decoding unit and is used for providing PWM type current.
7. The driving device according to claim 6, wherein the voltage conversion module is configured to convert an externally input high voltage signal into a voltage signal of 12V dc and/or 24V dc and/or 48V dc and then input the voltage signal to the voltage processing module, so that the voltage processing module obtains the voltage signal.
8. The driving apparatus as claimed in claim 7, wherein the externally inputted high voltage signal is an ac 220V voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021235081.0U CN212305721U (en) | 2020-06-28 | 2020-06-28 | Drive device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021235081.0U CN212305721U (en) | 2020-06-28 | 2020-06-28 | Drive device |
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| CN212305721U true CN212305721U (en) | 2021-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390751A (en) * | 2021-12-27 | 2022-04-22 | 深圳市共进电子股份有限公司 | LED drive circuit and LED subassembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390751A (en) * | 2021-12-27 | 2022-04-22 | 深圳市共进电子股份有限公司 | LED drive circuit and LED subassembly |
| CN114390751B (en) * | 2021-12-27 | 2024-05-10 | 深圳市共进电子股份有限公司 | LED drive circuit and LED assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210105 |