Dimming driving power supply supporting multiple dimming modes

Abstract

The utility model relates to the technical field of dimming driving power supplies, in particular to a dimming driving power supply supporting multiple dimming modes, which comprises a BUCK dimming circuit, a controller unit and a plurality of dimming units. The BUCK dimming circuit is in data interaction connection with the controller unit, and the controller unit is in data interaction connection with the plurality of dimming units; the plurality of dimming units are respectively provided with corresponding identification signals, when the controller unit traverses all the dimming units and identifies any identification signal, the controller unit performs data interaction with the dimming unit corresponding to the identification signal, and the BUCK dimming circuit is driven to perform dimming on a dimming object according to the dimming logic of the corresponding dimming unit; therefore, expansion of multiple dimming modes can be achieved at low cost, the diversity of market application and the diversity of customer requirements are met, the dimming units are traversed through the controller unit to conduct dimming mode replacement, and the dimming mode replacement is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of dimming driving power supplies, in particular to a dimming driving power supply supporting multiple dimming modes. Background Art

[0002] At present, the dimming technologies of dimming driver power supply are divided into wired and wireless. The advantage of wireless dimming is that it is flexible and easy to install, but the disadvantage is that it is easily interfered and has a limited control range. In applications that require stable and reliable applications, wired dimming is more suitable. The two most common wired dimming technologies are: 0-10V dimming, DALI dimming and PUSH-DIM dimming.

[0003] 0-10V dimming is a method for controlling the brightness of lights with a DC voltage between 0V and 10V. It can run smoothly and be dimmed down to 10%, 1% or even 0.1% brightness levels. 0-10V dimming controllers were previously commonly used for dimming control of fluorescent lamps; now that the power supply is added to the LED driver module and there are dedicated control lines, 0-10V dimmers can also support a large number of LED lighting lamps, dimming or brightening all lamps in the chain at the same level, and can be used in facilities that need to perform a single operation on all devices, and reduce operational complexity.

[0004] DALI dimming (Digital Addressable Lighting Interface) is an international standard and popular lighting control protocol bus. It uses Manchester-coded digital transmission and has powerful functions such as overall dimming, group dimming, address dimming and query of lamp status. It can achieve precise adjustment and intelligent control of lights from 0.1% to 100%. Different lighting units on the DALI bus can be flexibly grouped to achieve different scene control and management. In actual applications, a typical DALI system application can control 40 to 50 lamps, which can be divided into 16 groups, and can process some controls / scenes in parallel. DALI has special protocol regulations, which enhances the interoperability of products between different brands, and each DALI device has a separate address code, which can truly achieve single-lamp control. Two-way communication facilitates timely query and understanding of device status and information.

[0005] PUSH-DIM dimming, connect the DALI interface to the AC100-300V mains at 50Hz or 60Hz, and connect the neutral and live wires of the power supply to the DALI interface through a reset switch. The same PUSH-DIM bus supports 64 local dimming driver power supplies to exist at the same time. According to the defined PUSH-DIM function, the functions of turning on and off lights, dimming and color adjustment, synchronizing the brightness and color temperature of all lights, saving memory and corridor mode can be realized. After entering the corridor mode, the light can be turned on when people come by by connecting to the sensor, and the light gradually dims to the set low brightness value when people leave.

[0006] Currently, the dimming driver power supplies on the market can only support one of the above dimming modes to dim the lamps. When the dimming mode needs to be changed, the hardware circuit needs to be changed or a different type of dimming driver power supply needs to be directly replaced, which is costly, time-consuming and labor-intensive, and cannot meet the diversity of market applications and customer needs. Utility Model Content

[0007] In view of the above-mentioned defects, the purpose of the utility model is to propose a dimming driving power supply that supports multiple dimming modes, which can realize the expansion of multiple dimming modes at low cost, meet the diversity of market applications and customer needs, and use a controller unit to traverse the dimming unit to change the dimming mode, which is very convenient.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] A dimming driving power supply supporting multiple dimming modes, comprising a BUCK dimming circuit, a controller unit and a plurality of dimming units; the BUCK dimming circuit and the controller unit are data-interactively connected, and the controller unit is data-interactively connected with the plurality of dimming units respectively;

[0010] The plurality of dimming units are respectively provided with corresponding identification signals. When the controller unit traverses all the dimming units and identifies any identification signal, the controller unit interacts with the dimming unit data corresponding to the identification signal, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the corresponding dimming unit.

[0011] Furthermore, the plurality of dimming units include a DC voltage dimming unit and a DALI / PUSH-DIM dimming unit; the controller unit is respectively connected to the DC voltage dimming unit and the DALI / PUSH-DIM dimming unit for data exchange;

[0012] The identification signal of the DC voltage dimming unit is a first identification signal;

[0013] The identification signal of the DALI dimming mode of the DALI / PUSH-DIM dimming unit is a second identification signal, and the identification signal of the PUSH-DIM dimming mode of the DALI / PUSH-DIM dimming unit is a third identification signal;

[0014] The controller unit traverses the DC voltage dimming unit and the DALI / PUSH-DIM dimming unit; when the controller unit recognizes the first recognition signal, the controller unit interacts with the DC voltage dimming unit data, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the DC voltage dimming unit; when the controller unit recognizes the second recognition signal, the controller unit interacts with the DALI / PUSH-DIM dimming unit data, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the DALI dimming mode of the DALI / PUSH-DIM dimming unit; when the controller unit recognizes the third recognition signal, the controller unit interacts with the DALI / PUSH-DIM dimming unit data, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the PUSH-DIM dimming mode of the DALI / PUSH-DIM dimming unit.

[0015] Further, when the input interface of the DC voltage dimming unit is connected to the DC voltage dimming wire, the first identification signal is generated by an external first dimming signal;

[0016] When the DALI interface of the DALI / PUSH-DIM dimming unit is connected to the DALI dimming wire, the second identification signal is generated by an external second dimming signal;

[0017] When the PUSH-DIM interface of the DALI / PUSH-DIM dimming unit is connected to the PUSH-DIM dimming wire, the third identification signal is generated by an external third dimming signal.

[0018] Further, after the controller unit drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the corresponding dimming unit, it saves and defaults to drive the BUCK dimming circuit to dim the dimming object according to the dimming logic of the corresponding dimming unit when power is restarted.

[0019] Furthermore, it also includes an NFC unit; the NFC unit and the controller unit are connected for data exchange; the NFC unit is used for data exchange between the host computer and the controller unit.

[0020] Further, the DC voltage dimming unit includes a resistor R2, a resistor R41, a resistor R5, a resistor R4, a resistor R27, a resistor R30, a resistor R26, a capacitor C14, a capacitor C16, a capacitor C18, a MOS tube Q21, a common mode inductor LF2, a photocoupler U9 and a three-in-one dimming / speed regulation signal conversion interface chip U3; pins 4 and 2 of the common mode inductor LF2 are used as a DC voltage dimming interface of the DC voltage dimming unit, and the emitter of the photocoupler U9 is data-interactively connected to the controller unit;

[0021] The collector of the photoelectric coupler U9 is connected to a 3V3 power supply, the cathode of the photoelectric coupler U9 is grounded, the anode of the photoelectric coupler U9 and the drain of the MOS tube Q21 are electrically connected to one end of the resistor R26, the other end of the resistor R6 is electrically connected to the DRV end of the three-in-one dimming / speed regulation signal conversion interface chip U3, the gate of the MOS tube Q21 and one end of the resistor R30 are electrically connected to one end of the resistor R27, the source of the MOS tube Q21, the other end of the resistor R30, one end of the capacitor C18 and pin 1 of the common mode inductor LF2 are all grounded, the other end of the resistor R27, the other end of the capacitor C18 and pin 3 of the common mode inductor LF2 are electrically connected to the DIM end of the three-in-one dimming / speed regulation signal conversion interface chip U3. The three-in-one dimming / speed regulation signal conversion interface chip U3 is electrically connected to the SD terminal, CFG2 terminal and CFG terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3, and the other end of the resistor R5, the other end of the resistor R2, the other end of the resistor R4 and the GND terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3 are all grounded. The VCC terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3 is electrically connected to one end of the capacitor C14, the other end of the capacitor C14 and one end of the capacitor C16 are both grounded, the other end of the capacitor C16 and one end of the resistor R41 are electrically connected to the VIN terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3, and the other end of the resistor R41 is connected to a 20V power supply.

[0022] Further, the DALI / PUSH-DIM dimming unit includes a variable resistor VR2, a rectifier bridge DB2, a MOS tube Q7, a resistor R56, a resistor R57, a resistor R58, a resistor R59, a resistor R60, a resistor R61, a resistor R62, a resistor R67, a capacitor C23, a capacitor C24, a voltage regulator diode DZ1, a transistor Q5, a transistor Q6, a photocoupler U7 and a photocoupler U8; pins 3 and 2 of the rectifier bridge DB3 are used as a DALI interface or a PUSH-DIM interface of the DALI / PUSH-DIM dimming unit, and the emitter of the photocoupler U7 and one end of the resistor R62 are both connected to the controller unit for data exchange;

[0023] Pin 4 of the rectifier bridge DB2 is grounded, pin 1 of the rectifier bridge DB2, one end of the resistor R56, and the emitter of the transistor Q6 are all electrically connected to the drain of the MOS tube Q7, the other end of the resistor R56 and the base of the transistor Q6 are all electrically connected to the emitter of the transistor Q5, one end of the resistor R57 and the collector of the transistor Q6 are all electrically connected to the base of the transistor Q5, the other end of the resistor R57 is electrically connected to one end of the resistor R58, the other end of the resistor R58 is electrically connected to one end of the resistor R59, the other end of the resistor R59 is grounded, the collector of the transistor Q5 is electrically connected to the anode of the photocoupler U7, the collector of the photocoupler U7 is connected to the 3V3 power supply, the emitter of the photocoupler U7 is electrically connected to the base of the transistor Q5, and the collector of the photocoupler U7 is electrically connected to the anode of the photocoupler U7. One end of the resistor R61 is electrically connected, and the other end of the resistor R61 is grounded. The cathode of the photoelectric coupler U7, the collector of the photoelectric coupler U8, and one end of the capacitor C24 are all electrically connected to the cathode of the voltage stabilizing diode DZ1, and the other end of the capacitor C24 is all grounded to the anode of the voltage stabilizing diode DZ1. The anode of the photoelectric coupler U8 is electrically connected to the other end of the resistor R62, and the cathode of the photoelectric coupler U8 is grounded. The emitter of the photoelectric coupler U8 and one end of the resistor R60 are all electrically connected to one end of the resistor R67, and the other end of the resistor R67 and one end of the capacitor C23 are all electrically connected to the gate of the MOS tube Q7. The other end of the resistor R60, the other end of the capacitor C23, and the source of the MOS tube Q7 are all grounded.

[0024] Further, the NFC unit includes an antenna Lant, a capacitor C37, a capacitor C35, a capacitor C36, a capacitor C66, a capacitor C65, a resistor R104, a resistor R105, a resistor R106 and an NFC chip U4; the GPO terminal, the SCL terminal and the SDA terminal of the NFC chip U4 are all connected to the controller unit for data exchange;

[0025] The GPO terminal, SCL terminal and SDA terminal of the NFC chip U4 are electrically connected to one end of the resistor R104, one end of the resistor R105 and one end of the resistor R106 respectively, the other end of the resistor R104, the other end of the resistor R105, the other end of the resistor R106, one end of the capacitor C65 and the VCC terminal of the NFC chip U4 are all connected to a 3V3 power supply, the other end of the capacitor C65 and the VSS terminal of the NFC chip U4 are both grounded, one end of the antenna Lant, one end of the capacitor C37, one end of the capacitor C35, and one end of the capacitor C36 are all electrically connected to the AC0 terminal of the NFC chip U4, the other end of the antenna Lant, the other end of the capacitor C37, the other end of the capacitor C35, and the other end of the capacitor C36 are all electrically connected to the AC1 terminal of the NFC chip U4, the V_EH terminal of the NFC chip U4 is electrically connected to one end of the capacitor C66, and the other end of the capacitor C66 is grounded.

[0026] The technical solution provided by the utility model may include the following beneficial effects: data interaction between the controller unit (such as MCU) and the dimming BUCK dimming circuit in the dimming driving power supply is realized through data interaction connection between the two, so as to control the dimming mode of the dimming driving power supply; and the controller unit realizes data interaction between the two by data interaction connection with multiple dimming units, so that the dimming mode of the dimming driving power supply is determined by the dimming unit, and each dimming unit represents a dimming mode; the specific dimming mode is selected by the controller unit traversing the dimming units, and when any dimming unit generates an identification signal (generated identification signal represents When a dimming mode is selected by the controller unit (indicating that the user chooses to use the dimming mode), the controller unit will drive the BUCK dimming circuit to dim the dimming object (such as a lamp) according to the dimming logic of the dimming unit, that is, the dimming mode of the dimming unit is selected as the dimming mode of the dimming driving power supply; thus, multiple dimming modes can be selected with only one dimming driving power supply, and there is no need to change the hardware part when changing the dimming mode, and the dimming mode can be expanded at a low cost to meet the diversity of market applications and customer needs. The dimming mode is changed by the selection method of the controller unit traversal, which is very convenient and does not require manual operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of a dimming driving power supply supporting multiple dimming modes in one embodiment of the present utility model.

[0028] Figure 2 Yes Figure 1 The circuit diagram of the DC voltage dimming unit is shown.

[0029] Figure 3 Yes Figure 1 The circuit diagram of the DALI / PUSH-DIM dimming unit is shown.

[0030] Figure 4 Yes Figure 1 Circuit diagram of the NFC unit shown.

[0031] Among them: BUCK dimming circuit 1, controller unit 2, multiple dimming units 3, DC voltage dimming unit 31, DALI / PUSH-DIM dimming unit 32, NFC unit 4, resistor R2, resistor R41, resistor R5, resistor R4, resistor R27, resistor R30, resistor R26, capacitor C14, capacitor C16, capacitor C18, MOS tube Q21, common mode inductor LF2, optocoupler U9, three-in-one dimming / speed regulation signal conversion interface chip U3, variable resistor VR2, whole Current bridge DB2, MOS tube Q7, resistor R56, resistor R57, resistor R58, resistor R59, resistor R60, resistor R61, resistor R62, resistor R67, capacitor C23, capacitor C24, Zener diode DZ1, transistor Q5, transistor Q6, photocoupler U7, photocoupler U8, antenna Lant, capacitor C37, capacitor C35, capacitor C36, capacitor C66, capacitor C65, resistor R104, resistor R105, resistor R106, NFC chip U4. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying 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 one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] Combine the following Figures 1 to 4 , describing a dimming driving power supply supporting multiple dimming modes in an embodiment of the utility model.

[0036] A dimming driving power supply supporting multiple dimming modes includes a BUCK dimming circuit 1, a controller unit 2 and a plurality of dimming units 3; the BUCK dimming circuit 1 is data-interactively connected to the controller unit 2, and the controller unit 2 is data-interactively connected to the plurality of dimming units 3 respectively;

[0037] Multiple dimming units 3 are respectively provided with corresponding identification signals. When the controller unit 2 traverses all the dimming units 3 and identifies any identification signal, the controller unit 2 interacts with the data of the dimming unit 3 corresponding to the identification signal, and drives the BUCK dimming circuit 1 to dim the dimming object according to the dimming logic of the corresponding dimming unit 3.

[0038] The utility model proposes a preferred embodiment of a dimming driving power supply supporting multiple dimming modes, such as Figure 1 As shown, the controller unit 2 (such as MCU) is connected with the dimming BUCK dimming circuit 1 in the dimming driving power supply to realize data interaction between the two, so as to control the dimming mode of the dimming driving power supply; and the controller unit 2 is connected with multiple dimming units 3 to realize data interaction between the two, so that the dimming mode of the dimming driving power supply is determined by the dimming unit 3, and each dimming unit 3 represents a dimming mode; the specific dimming mode selection is realized by the controller unit 2 traversing the dimming units 3, and when any dimming unit 3 generates an identification signal (generating an identification signal means that the user selects to use the dimming mode), the controller unit 2 is connected with the dimming unit ... and the dimming mode of the dimming driving power supply is determined by the dimming unit 3. When a dimming mode is recognized by the controller unit 2, the controller unit 2 will drive the BUCK dimming circuit 1 to dim the dimming object (such as a lamp) according to the dimming logic of the dimming unit 3, that is, the dimming mode of the dimming unit 3 is selected as the dimming mode of the dimming driving power supply; thereby, a variety of dimming modes can be selected with only one dimming driving power supply, and there is no need to change the hardware part when changing the dimming mode, and the dimming mode can be expanded at a low cost to meet the diversity of market applications and the diversity of customer needs. The dimming mode is changed by the selection method traversed by the controller unit 2, which is very convenient, does not require manual operation, and saves time and effort.

[0039] Further, the plurality of dimming units 3 include a DC voltage dimming unit 31 and a DALI / PUSH-DIM dimming unit 32; the controller unit 2 is respectively connected to the DC voltage dimming unit 31 and the DALI / PUSH-DIM dimming unit 32 for data exchange;

[0040] The identification signal of the DC voltage dimming unit 31 is a first identification signal;

[0041] The identification signal of the DALI dimming mode of the DALI / PUSH-DIM dimming unit 32 is the second identification signal, and the identification signal of the PUSH-DIM dimming mode of the DALI / PUSH-DIM dimming unit 32 is the third identification signal;

[0042] The controller unit 2 traverses the DC voltage dimming unit 31 and the DALI / PUSH-DIM dimming unit 32; when the controller unit 2 recognizes the first recognition signal, the controller unit 2 interacts with the DC voltage dimming unit 31, and drives the BUCK dimming circuit 1 to dim the dimming object according to the dimming logic of the DC voltage dimming unit 31; when the controller unit 2 recognizes the second recognition signal, the controller unit 2 interacts with the DALI / PUSH-DIM dimming unit 32, and drives the BUCK dimming circuit 1 to dim the dimming object according to the dimming logic of the DALI dimming mode of the DALI / PUSH-DIM dimming unit 32; when the controller unit 2 recognizes the third recognition signal, the controller unit 2 interacts with the DALI / PUSH-DIM dimming unit 32, and drives the BUCK dimming circuit 1 to dim the dimming object according to the dimming logic of the PUSH-DIM dimming mode of the DALI / PUSH-DIM dimming unit 32.

[0043] In this embodiment, the dimming driving power supply preferably has three commonly used modes: DC voltage dimming mode (i.e., 0-10V dimming mode), DALI dimming mode, and PUSH-DIM dimming mode, which are compatible with most dimming requirements on the market, and the DALI dimming mode and PUSH-DIM dimming mode can be implemented by one unit, which makes the circuit more streamlined and the cost lower. More importantly, these three modes have their own communication methods with the controller unit 2, i.e., specific identification signals, which have high recognition and are not easy to be confused when traversed; for example:

[0044] (1) 0-10V dimming mode: within 10 seconds, the voltage of the DC voltage dimming interface of the DC voltage dimming unit 31 is changed to "high level-low level-high level-low level-high level-low level", or "low level-high level-low level-high level-high level-low level" (high level is 7V-10V, low level is 0V-2V) to switch to 0-10V dimming mode.

[0045] (2) DALI dimming mode: The DALI interface of the DALI / PUSH-DIM dimming unit 32 detects a 417us encoding waveform.

[0046] (3) PUSH-DIM dimming mode: The PUSH-DIM interface of the DALI / PUSH-DIM dimming unit 32 detects a 10 ms square wave.

[0047] Further, when the input interface of the DC voltage dimming unit 31 is connected to the DC voltage dimming wire, the external first dimming signal generates a first identification signal;

[0048] When the DALI interface of the DALI / PUSH-DIM dimming unit 32 is connected to the DALI dimming wire, the external second dimming signal generates a second identification signal;

[0049] When the PUSH-DIM interface of the DALI / PUSH-DIM dimming unit 32 is connected to the PUSH-DIM dimming wire, the third external dimming signal generates a third identification signal.

[0050] In this embodiment, after the dimming driving power supply integrates three commonly used modes, namely, the DC voltage dimming mode, the DALI dimming mode and the PUSH-DIM dimming mode, when the user changes the dimming mode, the mode selection can be realized by connecting the corresponding wire through the interface. For example, when the user wants to use the DC voltage dimming mode, only the DC voltage dimming wire is connected to the input interface of the DC voltage dimming unit 31, which is used to externally connect the first dimming signal to generate a first identification signal, and then the controller unit 2 traverses and identifies the first identification signal to enter the DC voltage dimming mode; when the user wants to change from the DC voltage dimming mode to the DALI dimming mode, the DC voltage dimming wire is removed from the input interface of the DC voltage dimming unit 31, and then the DALI dimming wire is connected to the DALI interface of the DALI / PUSH-DIM dimming unit 32, so that the second dimming signal can be externally connected to generate a second identification signal, so that the controller unit 2 traverses and identifies the second identification signal to enter the DALI dimming mode, thereby completing the dimming mode change.

[0051] Further, after the controller unit 2 drives the BUCK dimming circuit 1 to dim the dimming object according to the dimming logic of the corresponding dimming unit 3, it is saved and defaulted to drive the BUCK dimming circuit 1 to dim the dimming object according to the dimming logic of the corresponding dimming unit 3 when power is restarted.

[0052] In this embodiment, in order to ensure that the dimming driving power supply can enter the dimming state immediately after power is turned on again after power is cut off, the controller unit 2 saves or updates the dimming mode of the corresponding dimming unit 3 each time, so that when power is cut off, the dimming driving power supply can be dimmed according to the dimming mode before power off after power is turned on again.

[0053] Furthermore, it also includes an NFC unit 4; the NFC unit 4 is connected to the controller unit 2 for data interaction; and the NFC unit 4 is used for data interaction between the host computer and the controller unit 2.

[0054] In this embodiment, the controller unit 2 is additionally provided with a data exchange connection with the NFC unit 4, and NFC technology (near field communication) can be used to bring a host computer (such as a mobile phone) close to the dimming drive power supply to communicate with the dimming drive power supply, thereby realizing data exchange between the host computer and the controller unit, so that the dimming drive power supply can be controlled by the host computer to realize more functions and the working status of the dimming drive power supply, etc. For example, the controller unit 2 realizes DALI functions such as maximum and minimum brightness, power-on brightness, gradient time, gradient rate, scene preset configuration, group configuration, and address configuration by reading the configuration information between the NFC unit 4 and the host computer, or the controller unit 2 realizes the judgment of the switch light and abnormal working status of the dimming drive power supply by reading the input voltage, BUCK working voltage and output load voltage and current of the dimming drive power supply.

[0055] Further, the DC voltage dimming unit 31 includes a resistor R2, a resistor R41, a resistor R5, a resistor R4, a resistor R27, a resistor R30, a resistor R26, a capacitor C14, a capacitor C16, a capacitor C18, a MOS tube Q21, a common mode inductor LF2, a photocoupler U9 and a three-in-one dimming / speed regulation signal conversion interface chip U3; pins 4 and 2 of the common mode inductor LF2 are used as a DC voltage dimming interface of the DC voltage dimming unit 31, and the emitter of the photocoupler U9 is data-interactively connected with the controller unit 2;

[0056] The collector of the photocoupler U9 is connected to the 3V3 power supply, the cathode of the photocoupler U9 is grounded, the anode of the photocoupler U9 and the drain of the MOS tube Q21 are electrically connected to one end of the resistor R26, the other end of the resistor R6 is electrically connected to the DRV end of the three-in-one dimming / speed regulation signal conversion interface chip U3, the gate of the MOS tube Q21 and one end of the resistor R30 are electrically connected to one end of the resistor R27, the source of the MOS tube Q21, the other end of the resistor R30, one end of the capacitor C18 and the 1 pin of the common mode inductor LF2 are all grounded, and the other end of the resistor R27, the other end of the capacitor C18 and the 3 pins of the common mode inductor LF2 are electrically connected to the DIM end of the three-in-one dimming / speed regulation signal conversion interface chip U3 One end of the resistor R5, one end of the resistor R2 and one end of the resistor R4 are electrically connected to the SD end, CFG2 end and CFG end of the three-in-one dimming / speed regulation signal conversion interface chip U3 respectively, the other end of the resistor R5, the other end of the resistor R2, the other end of the resistor R4 and the GND end of the three-in-one dimming / speed regulation signal conversion interface chip U3 are all grounded, the VCC end of the three-in-one dimming / speed regulation signal conversion interface chip U3 is electrically connected to one end of the capacitor C14, the other end of the capacitor C14 and one end of the capacitor C16 are both grounded, the other end of the capacitor C16 and one end of the resistor R41 are electrically connected to the VIN end of the three-in-one dimming / speed regulation signal conversion interface chip U3, and the other end of the resistor R41 is connected to a 20V power supply.

[0057] In this embodiment, the circuit structure of the DC voltage dimming unit 31 is as follows: Figure 2 As shown, the DC voltage dimming function of the DC voltage dimming unit 31 can be realized. For example, in the 0-10V dimming mode, the dimming function adopts linear output and has a smooth gradient effect. When the DC voltage dimming interface voltage is less than 0.75V, the BUCK dimming circuit 1 outputs 0%; when the DC voltage dimming interface voltage is greater than 9.5V, the BUCK dimming circuit 1 outputs 100%; when the DC voltage dimming interface voltage is 0.8V-9.5V, the BUCK dimming circuit 1 linearly outputs 1%-100%, and the gradient time is 200MS; thereby dimming the dimming object is realized.

[0058] Further, the DALI / PUSH-DIM dimming unit 32 includes a variable resistor VR2, a rectifier bridge DB2, a MOS tube Q7, a resistor R56, a resistor R57, a resistor R58, a resistor R59, a resistor R60, a resistor R61, a resistor R62, a resistor R67, a capacitor C23, a capacitor C24, a voltage regulator diode DZ1, a transistor Q5, a transistor Q6, a photocoupler U7 and a photocoupler U8; pins 3 and 2 of the rectifier bridge DB3 are used as a DALI interface or a PUSH-DIM interface of the DALI / PUSH-DIM dimming unit 32, and the emitter of the photocoupler U7 and one end of the resistor R62 are both connected to the controller unit 2 for data exchange;

[0059] Pin 4 of the rectifier bridge DB2 is grounded, pin 1 of the rectifier bridge DB2, one end of the resistor R56, and the emitter of the transistor Q6 are all electrically connected to the drain of the MOS tube Q7, the other end of the resistor R56 and the base of the transistor Q6 are all electrically connected to the emitter of the transistor Q5, one end of the resistor R57 and the collector of the transistor Q6 are all electrically connected to the base of the transistor Q5, the other end of the resistor R57 is electrically connected to one end of the resistor R58, the other end of the resistor R58 is electrically connected to one end of the resistor R59, the other end of the resistor R59 is grounded, the collector of the transistor Q5 is electrically connected to the anode of the photocoupler U7, the collector of the photocoupler U7 is connected to the 3V3 power supply, the emitter of the photocoupler U7 is electrically connected to the One end of the resistor R61 is electrically connected, and the other end of the resistor R61 is grounded. The cathode of the photoelectric coupler U7, the collector of the photoelectric coupler U8, and one end of the capacitor C24 are all electrically connected to the cathode of the voltage stabilizing diode DZ1, and the other end of the capacitor C24 is all grounded to the anode of the voltage stabilizing diode DZ1. The anode of the photoelectric coupler U8 is electrically connected to the other end of the resistor R62, and the cathode of the photoelectric coupler U8 is grounded. The emitter of the photoelectric coupler U8 and one end of the resistor R60 are all electrically connected to one end of the resistor R67, and the other end of the resistor R67 and one end of the capacitor C23 are all electrically connected to the gate of the MOS tube Q7. The other end of the resistor R60, the other end of the capacitor C23, and the source of the MOS tube Q7 are all grounded.

[0060] In this embodiment, the circuit structure of the DALI / PUSH-DIM dimming unit 32 is as follows: Figure 3 As shown, it can realize both DALI dimming function and PUSH-DIM dimming function, and the same interface ( Figure 3 DA1 and DA2 can respectively realize DALI dimming function and PUSH-DIM dimming function by receiving 417us coded waveform and 10ms square wave.

[0061] Further, the NFC unit 4 includes an antenna Lant, a capacitor C37, a capacitor C35, a capacitor C36, a capacitor C66, a capacitor C65, a resistor R104, a resistor R105, a resistor R106 and an NFC chip U4; the GPO terminal, the SCL terminal and the SDA terminal of the NFC chip U4 are all connected to the controller unit 2 for data exchange;

[0062] The GPO terminal, SCL terminal and SDA terminal of the NFC chip U4 are electrically connected to one end of the resistor R104, one end of the resistor R105 and one end of the resistor R106 respectively, the other end of the resistor R104, the other end of the resistor R105, the other end of the resistor R106, one end of the capacitor C65 and the VCC terminal of the NFC chip U4 are all connected to the 3V3 power supply, the other end of the capacitor C65 and the VSS terminal of the NFC chip U4 are both grounded, one end of the antenna Lant, one end of the capacitor C37, one end of the capacitor C35, and one end of the capacitor C36 are all electrically connected to the AC0 terminal of the NFC chip U4, the other end of the antenna Lant, the other end of the capacitor C37, the other end of the capacitor C35, and the other end of the capacitor C36 are all electrically connected to the AC1 terminal of the NFC chip U4, the V_EH terminal of the NFC chip U4 is electrically connected to one end of the capacitor C66, and the other end of the capacitor C66 is grounded.

[0063] In this embodiment, the circuit structure of the NFC unit 4 is as follows: Figure 4 As shown, the near field communication function can be realized.

[0064] Other structures and operations of a dimming driving power supply supporting multiple dimming modes according to an embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0065] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does 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.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dimming driving power supply supporting multiple dimming modes, including a BUCK dimming circuit, characterized in that: It also includes a controller unit and a plurality of dimming units; the BUCK dimming circuit is data-interactively connected to the controller unit, and the controller unit is data-interactively connected to the plurality of dimming units respectively; The plurality of dimming units are respectively provided with corresponding identification signals. When the controller unit traverses all the dimming units and identifies any identification signal, the controller unit interacts with the dimming unit data corresponding to the identification signal, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the corresponding dimming unit.

2. The dimming driving power supply supporting multiple dimming modes according to claim 1, characterized in that: The plurality of dimming units include a DC voltage dimming unit and a DALI / PUSH-DIM dimming unit; the controller unit is respectively connected with the DC voltage dimming unit and the DALI / PUSH-DIM dimming unit for data exchange; The identification signal of the DC voltage dimming unit is a first identification signal; The identification signal of the DALI dimming mode of the DALI / PUSH-DIM dimming unit is a second identification signal, and the identification signal of the PUSH-DIM dimming mode of the DALI / PUSH-DIM dimming unit is a third identification signal; The controller unit traverses the DC voltage dimming unit and the DALI / PUSH-DIM dimming unit; when the controller unit recognizes the first recognition signal, the controller unit interacts with the DC voltage dimming unit data, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the DC voltage dimming unit; when the controller unit recognizes the second recognition signal, the controller unit interacts with the DALI / PUSH-DIM dimming unit data, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the DALI dimming mode of the DALI / PUSH-DIM dimming unit; when the controller unit recognizes the third recognition signal, the controller unit interacts with the DALI / PUSH-DIM dimming unit data, and drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the PUSH-DIM dimming mode of the DALI / PUSH-DIM dimming unit.

3. The dimming driving power supply supporting multiple dimming modes according to claim 2, characterized in that: When the input interface of the DC voltage dimming unit is connected to the DC voltage dimming wire, the first dimming signal is externally connected to generate the first identification signal; When the DALI interface of the DALI / PUSH-DIM dimming unit is connected to the DALI dimming wire, the second identification signal is generated by an external second dimming signal; When the PUSH-DIM interface of the DALI / PUSH-DIM dimming unit is connected to the PUSH-DIM dimming wire, the third dimming signal is externally connected to generate the third identification signal.

4. The dimming driving power supply supporting multiple dimming modes according to claim 1, characterized in that: After the controller unit drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the corresponding dimming unit, it saves and defaults that when power is restarted, it drives the BUCK dimming circuit to dim the dimming object according to the dimming logic of the corresponding dimming unit at this time.

5. The dimming driving power supply supporting multiple dimming modes according to claim 1, characterized in that: It also includes an NFC unit; the NFC unit is connected to the controller unit for data exchange; the NFC unit is used for data exchange between the host computer and the controller unit.

6. The dimming driving power supply supporting multiple dimming modes according to claim 2, characterized in that: The DC voltage dimming unit includes a resistor R2, a resistor R41, a resistor R5, a resistor R4, a resistor R27, a resistor R30, a resistor R26, a capacitor C14, a capacitor C16, a capacitor C18, a MOS tube Q21, a common mode inductor LF2, a photocoupler U9 and a three-in-one dimming / speed regulation signal conversion interface chip U3; pins 4 and 2 of the common mode inductor LF2 are used as a DC voltage dimming interface of the DC voltage dimming unit, and the emitter of the photocoupler U9 is data-interactively connected with the controller unit; The collector of the photoelectric coupler U9 is connected to a 3V3 power supply, the cathode of the photoelectric coupler U9 is grounded, the anode of the photoelectric coupler U9 and the drain of the MOS tube Q21 are electrically connected to one end of the resistor R26, the other end of the resistor R6 is electrically connected to the DRV end of the three-in-one dimming / speed regulation signal conversion interface chip U3, the gate of the MOS tube Q21 and one end of the resistor R30 are electrically connected to one end of the resistor R27, the source of the MOS tube Q21, the other end of the resistor R30, one end of the capacitor C18 and pin 1 of the common mode inductor LF2 are all grounded, the other end of the resistor R27, the other end of the capacitor C18 and pin 3 of the common mode inductor LF2 are electrically connected to the DIM end of the three-in-one dimming / speed regulation signal conversion interface chip U3. The three-in-one dimming / speed regulation signal conversion interface chip U3 is electrically connected to the SD terminal, CFG2 terminal and CFG terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3, and the other end of the resistor R5, the other end of the resistor R2, the other end of the resistor R4 and the GND terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3 are all grounded. The VCC terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3 is electrically connected to one end of the capacitor C14, the other end of the capacitor C14 and one end of the capacitor C16 are both grounded, the other end of the capacitor C16 and one end of the resistor R41 are electrically connected to the VIN terminal of the three-in-one dimming / speed regulation signal conversion interface chip U3, and the other end of the resistor R41 is connected to a 20V power supply.

7. The dimming driving power supply supporting multiple dimming modes according to claim 2, characterized in that: The DALI / PUSH-DIM dimming unit includes a variable resistor VR2, a rectifier bridge DB2, a MOS tube Q7, a resistor R56, a resistor R57, a resistor R58, a resistor R59, a resistor R60, a resistor R61, a resistor R62, a resistor R67, a capacitor C23, a capacitor C24, a voltage stabilizing diode DZ1, a transistor Q5, a transistor Q6, a photocoupler U7 and a photocoupler U8; pins 3 and 2 of the rectifier bridge DB3 are used as a DALI interface or a PUSH-DIM interface of the DALI / PUSH-DIM dimming unit, and the emitter of the photocoupler U7 and one end of the resistor R62 are both connected to the controller unit for data exchange; Pin 4 of the rectifier bridge DB2 is grounded, pin 1 of the rectifier bridge DB2, one end of the resistor R56, and the emitter of the transistor Q6 are all electrically connected to the drain of the MOS tube Q7, the other end of the resistor R56 and the base of the transistor Q6 are all electrically connected to the emitter of the transistor Q5, one end of the resistor R57 and the collector of the transistor Q6 are all electrically connected to the base of the transistor Q5, the other end of the resistor R57 is electrically connected to one end of the resistor R58, the other end of the resistor R58 is electrically connected to one end of the resistor R59, the other end of the resistor R59 is grounded, the collector of the transistor Q5 is electrically connected to the anode of the photocoupler U7, the collector of the photocoupler U7 is connected to the 3V3 power supply, the emitter of the photocoupler U7 is electrically connected to the base of the transistor Q5, and the collector of the photocoupler U7 is electrically connected to the anode of the photocoupler U7. One end of the resistor R61 is electrically connected, and the other end of the resistor R61 is grounded. The cathode of the photoelectric coupler U7, the collector of the photoelectric coupler U8, and one end of the capacitor C24 are all electrically connected to the cathode of the voltage stabilizing diode DZ1, and the other end of the capacitor C24 is all grounded to the anode of the voltage stabilizing diode DZ1. The anode of the photoelectric coupler U8 is electrically connected to the other end of the resistor R62, and the cathode of the photoelectric coupler U8 is grounded. The emitter of the photoelectric coupler U8 and one end of the resistor R60 are all electrically connected to one end of the resistor R67, and the other end of the resistor R67 and one end of the capacitor C23 are all electrically connected to the gate of the MOS tube Q7. The other end of the resistor R60, the other end of the capacitor C23, and the source of the MOS tube Q7 are all grounded.

8. The dimming driving power supply supporting multiple dimming modes according to claim 5, characterized in that: The NFC unit includes an antenna Lant, a capacitor C37, a capacitor C35, a capacitor C36, a capacitor C66, a capacitor C65, a resistor R104, a resistor R105, a resistor R106 and an NFC chip U4; the GPO terminal, the SCL terminal and the SDA terminal of the NFC chip U4 are all connected to the controller unit for data exchange; The GPO terminal, SCL terminal and SDA terminal of the NFC chip U4 are electrically connected to one end of the resistor R104, one end of the resistor R105 and one end of the resistor R106 respectively, the other end of the resistor R104, the other end of the resistor R105, the other end of the resistor R106, one end of the capacitor C65 and the VCC terminal of the NFC chip U4 are all connected to a 3V3 power supply, the other end of the capacitor C65 and the VSS terminal of the NFC chip U4 are both grounded, one end of the antenna Lant, one end of the capacitor C37, one end of the capacitor C35, and one end of the capacitor C36 are all electrically connected to the AC0 terminal of the NFC chip U4, the other end of the antenna Lant, the other end of the capacitor C37, the other end of the capacitor C35, and the other end of the capacitor C36 are all electrically connected to the AC1 terminal of the NFC chip U4, the V_EH terminal of the NFC chip U4 is electrically connected to one end of the capacitor C66, and the other end of the capacitor C66 is grounded.

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