TWM318739U - Synchronous LED string-lamp controller - Google Patents

Description

M318739 VIII. New description: [New technical field] This creation is related to a kind of LED light string controller, special synchronous LED light string controller for synchronous action of LED light string.疋Applications [Prior Art] The application of light strings has been widely used, such as Christmas lights, landscapes, =, building lights, etc., with the LEDs and the process The cheaper, the application of LEDs to the string is also a new trend, ^, •, electric clothing, how to apply LEDs to the string, there are already some products S city. But how to achieve synchronous changes is one that needs to be served = • Mi,. This creation has made an in-depth study on this subject, and obtained the patent results. The current LED light string is like the twentieth, twenty-first and second: In the prior art, each of the light-emitting modules is _ RGB: a τ 〜 巴 bar LED module. According to the prior art, the technology shown in the twentieth diagram is the least = I want to use all the LED modules in parallel because of the DC parallel type, and the current consumption is large, that is, the power converter is required to supply large Electricity is difficult to handle or costly, or LED modules that can be connected in parallel are limited. The technique shown in Fig. 11 is better than the technique shown in Fig. 20. Since the ED module is in series, the current is small, so the power converter is easy to handle, and the one is low. There is still a defect in this technology, that is, the LED module of the string has eight limits. Depending on the DC voltage supplied by the power converter, the higher the voltage of the M318739, the more the LED module can be stringed. The technique shown in Fig. 12 is the best of the three, and the power converter shown in the second figure is replaced by each small power converter. Since the structure of the source converter is relatively simple, the lamp group that can be stringed is also less. The only small disadvantage is that an LED module is equipped with a small power supply, so the product cost is high. , η, . ' 叫 /人—·丨-- 圃 斤 不 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 led led led led led led led led led led led led led led led led led led led led led led led A blue light emitting diode is in the twentieth diagram, the twentieth LED, and a control circuit, as shown in the twenty-third diagram. The two pins of the conventional module are externally connected to the positive and negative terminals of the DC power supply, and the control circuit can be implemented as an integrated circuit (IC), which is driven by the programmed circuit of the two primary colors RGB LED or color according to the programmed procedure in the original circuit. deal with. However, the disadvantages of the conventional modules are that separate control ICs are implanted, so when applied to the string, the discoloration of each LED module after the power is turned on is independent and cannot be synchronized. If a controller can be set up for each LED module and the synchronization between each controller is achieved, the effect of the string can be quite different from the effect that each can only behave like a star. Therefore, how to balance the cost and achieve the synchronization effect is the direction of the industry research. [New content] The purpose of this creation is to provide a synchronous LED string controller that uses a controller to receive a synchronization signal for LED string Synchronous control, so that the LED string is synchronized. Wei M318739

- Control logic circuit, the controller 'includes: a first logic circuit's lightly connected to a data wheel and - a second control pin and a data output pin to pre-position bit I and the data logic μ, and _, data logic L Achieve the purpose of this creation m read transmission.

The single structure can be synchronized with the string of lights. > Exam to achieve the aforementioned purpose or characteristics of the LED creation, the description of 'the only need to be clear is that after the f: the figure is detailed, rather than limiting or narrowing the creation + example, the paper is To say [Embodiment] Receive Hi ί Sync LED string controller, use - controller H 乜旒 to achieve synchronous control of LED string. The second embodiment of the group 2 is the creation of the three-legged LED module of the preferred embodiment. The controller 14 of the Japanese τ creation is combined with the TF ED module 10 of an LED module 10 to further include a red light. The polar body is 3^—the green light-emitting diode ((}1^)12 and one blue light-emitting two D)13 to provide a display effect of different colors. The controller 14 can be a - (four) circuit, and the hard-to-follow 14 can be pre-newed to drive the & root. In the preferred embodiment of the present invention, the LED module 10 has three pins to be an anode. a foot v+, a cathode pin and a DC working voltage source synchronously connected to the M318739 LED module, wherein the anode pin and the cathode pin are used to receive a supply to the voltage source, _ synchronous connection The foot is connected to the

142. A control logic circuit 143 and a drive circuit ι44. The clock is the same as the v circuit 141 for receiving an external synchronization signal, so that the internal frequency of the synchronization signal f is synchronously processed to avoid causing the signal to be mistaken and the processed signal as the clock of the internal circuit. The counting circuit 142 counts the signal processed by the clock synchronization circuit 141 to generate the timing required inside the control benefit 14; the control logic circuit 143 is configured to process the timing signal generated by the counting circuit 142. And generating a control signal required by the user; and the driving circuit 144 is configured to add a current control or a current amplification process to the control signal generated by the control logic circuit 143 to directly drive the light emitting diode, and enable the light emitting diode The polar body makes a variety of different changes. According to the preferred embodiment of the present invention, the controller 14 can also be implemented in a monochromatic light-emitting diode lamp (not shown), the monochromatic light-emitting diode lamp comprising at least one monochromatic light-emitting diode. The monochromatic light-emitting diode is an R LED or a GLED or a BLED, and the single-color LED lamp has three 8 M318739 pins, which are an anode pin, a cathode pin and a synchronous pin, respectively. The anode pin and the cathode pin receive a DC operating voltage, and the synchronous pin is connected to the controller 14. Similarly, in different embodiments, the controller 14 can output a reference signal (or synchronization signal SYNC) having a fixed frequency at the synchronization pin, or receive a reference signal (or synchronization signal) at the synchronization pin. SYNC), and the controller 14 controls the monochromatic light-emitting diode illumination frequency based on the reference signal (or synchronization signal SYNC). Referring to the first and second figures, the circuit block diagram of the implementation of the parallel module is implemented, and the synchronous light emitting diode lamp string comprises a power converter 20 and a plurality of LED modules 1 〇, the power conversion The device 2 rectifies an AC power source 3G and provides a DC voltage to drive a synchronous LED string composed of a plurality of modules 10 connected in parallel. π 芡 芡 芡 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无 无Each controller 14 can use this synchronization signal SYNC as iim:. The synchronous light-emitting diode light string can also use the power conversion pirate 20-synchronous-synchronous money SYNc control 1114 to receive the same synchronization signal w to achieve synchronization in an early manner. The fourth and fifth figures are block diagrams of the actual circuit implemented in the tandem LED module 10, and the synchronous light emitting diode string comprises a power converter 20 and a plurality of LED modules. The power is turned to 2 AC and supplied - DC voltage to drive a string consisting of a plurality of modules ίο. In the M318739, the LED module 1 is connected in series and connected. Although it is difficult to manufacture, it can effectively reduce power consumption. As shown in the fourth and fifth figures, the upper stage LED module 10 and the cathode pin are connected to the anode pins of the lower-level LEDs. The potentials of the LED modules 10 of each stage are not equal. Therefore, when the reference signal of the fixed frequency (or the synchronizing signal sYNC) is transmitted to the synchronous pin of the next-level LED module and the cymbal, the controller 14 is not recognized, so the upper, and the #^ pin are measured. Need to shift the position of the signal to the voltage level

. Referring to the sixth figure, the circuit block diagram of the level shift = path of the embodiment shown in the fourth and fifth figures. As shown in the figure, between the synchronous pin output buffer circuit 141a of the upper and lower stages and the input buffer circuit 141b, a capacitor ‘ |41c is connected, and the DC signal is filtered by the capacitor 14k and the AC is retained; J 唬. In this way, the synchronous pin of each level of the LED module can obtain the reference signal (or the synchronization signal SYNC) of the same frequency source to achieve the synchronous action of the synchronous light-emitting diode and the light string. I. Referring to the seventh figure, a two-legged LED module, a block diagram of another preferred embodiment of the present invention. The controller W of the present invention is combined in an LED module 1〇, which includes a red light emitting diode (RLED) li, a green light emitting diode (G LED) 12, and a blue A color LED (B LED) 13 to provide a display of different colors. The LED module 4 further includes a capacitor 15 and a signal amplifying circuit 16. The controller 14 can be an integrated circuit, and the controller 14 can be preset to drive the color change sequence of the LEDs RLED11, GLED12 and βLED13 or flash M318739 pins as a preferred embodiment. The LED module 1G has two sets of stepped pole pins V+ and - cathode (four) v, and the dummy pole pins are connected in the m columns. The led module 40 is used by the anode pin provided by the anode pin. The purpose of synchronizing control is obtained by demodulating in-between, so that the controller 14 can have a reference signal with a fixed frequency (or synchronization signal S YNC, 'day tΐ, step pin reception-reference signal (or synchronization signal) ##·! β 二制益14 is based on the reference signal (or sync signal SYNC) or blinking mode. LED12 and Β LED13 change the color change order yak; eight, ninth and tenth are the LED module 40 Applicable to: 丨:: 2: circuit block diagram of the embodiment of the polar body light string. In the implementation of the second power converter 2G, the AC power supply 30 is rectified and provided - directly driven by a plurality of LED modules The reference signal output by the synchronous light-emitting diode 电源L power converter 2G is In the direct current t (four) fixed frequency carrier signal, each LED module 4. Using the capacitor earth, the number amplification circuit 丨 6 filters the DC value of the input carrier signal and ensures that the carrier signal is demodulated by the input DC voltage, and In addition to the function of carrier money, the controller 14 of the LED module 40 can also carry the carrier signal on the 22nd and output to the T-level LED. The module 4G enables the controller 14 of the next level* group to obtain the same residual signal according to the synchronous control 0. The tenth-picture is the architecture diagram of the four-legged LED module M318739 of another preferred embodiment. The LED module 5 has an anode pin v+, a falling pole, an input pin DI and an output pin D. The anode is connected; the second=foot is used to receive the DC voltage, and the input is connected. The foot m is used for ^1a dragon' and the output pin D is used for outputting signals. 兮眚=Twelfth is the tenth--the LED (four) block diagram shown in the figure, in the actual target example, the creation provides a LED module 5〇, packaged photodiode (R LED) 51, a green LED (G coffee, a ^ 23, LED) 53 And a controller 54, the controller 54; and the controller 54 drives the R LED 51, the G LED 52, and the „ μ μ μ μ μ according to the input of the input pin DI. Form, or job =

== Round out. Wherein, the input connection _ and the wheel connection VS can only use the simple clock signal as the synchronization signal, and the figure is the function block of the twelfth a diagram; 2 541 '545 and the interface, one The temporary storage circuit 544, a driving circuit 545 and a register diode 546. The receiving input pin m is performed: the identification circuit 541 is used for accessing the data, and the displacement temporary storage circuit 542 is used to select the data transmitted by the technology 541; the temporary storage circuit 544 is configured to receive the data. The displacement temporary storage circuit M2 is driven according to the temporary storage circuit, and the complete data __ of the drive 5B G LED 52 and the second=44 and the coding circuit 543 accepts the identification sequence or _ Form; the shift register circuit 542 means % of the indication to determine the output of the beta code to the pin DO. Its 12

In M318739, the identification circuit 541 identifies whether the data received by the input pin DI is an instruction of the LED module 50 or re-encodes the data from the output pin 1)0 to the next-stage LED module 50. Referring to Figures 13 and 14, there is shown a circuit block diagram of an embodiment of the LED module 50 for use in a synchronous light emitting diode string. As shown in the thirteenth figure, the 'synchronous light-emitting diode string of the road block diagram includes a plurality of LED modules.

=, and the LED modules 50 are connected in parallel, and between the upper and lower stages lED, = group 50, the output pins D of the upper stage LED module 50 are simultaneously connected to the next stage LED module 50. Input pin DI. In this embodiment, the data processing capability of the power converter 2 for supplying the DC power to the synchronous LED string can be output from a signal line to the input pin DI of the first module 5〇. In order to control the color change order of the synchronous light-emitting diode string or the flashing form.恃 电源 power converter 2G can be built-in - microprocessor or data processor and table W to store the form or effect of the synchronous LED string or the effect of the lottery, even display a specific graphics After connecting the AC power supply 3G, the data is processed by Git: from the micro-processing type, and the signal is indicated by the -specific data frame, including the greedy material, the clock, and the simultaneous display: gC is the LED module 5. Transmission of the signal - in the lightning mode can be exemplified by the following two ways, the source converter 2 〇 m ^ n, ', fifteenth a picture ^ ^ and 1/2 vdd voltage level: generation no 13 M318739 signal. When the power converter 20 starts transmitting data, the digital signal "丨,, or, 〇" = represents the data of the instruction executed by each LED module 5, and the execution can be defined in advance, wherein the digital signal"丨” is represented by the south voltage level of vdd, and the digital signal ▼ (4) represents the low voltage level of VSS. In the process of transmitting data, each bit "i," or "0" must return to the 1/2 VDD voltage level at the end and then transfer the next bit, so it can contain data and time. Each LED module After the controller 54 is ready to receive the data, it is recognized by the identification circuit 541 and processed, and the data is encoded into the same signal format by the encoding circuit 543 and then transmitted to the next-level LED module 50. The synchronous LED array is pre-defined with the total number of LED modules 50, so that each time the microprocessor or data processor is only more redundant or color, the tuples corresponding to the total number of LED modules 50 are transmitted. Each tuple will be properly transferred to each LED module 50. After the data transfer is completed, the output pin DO of the power converter and the output pin DO of the LED module 50 will remain at 1/2 VDD. In this embodiment, the creation can define that when the output pin DO appears 1/2VDD for more than a certain period of time, the data is locked and displayed. Thus, as long as different memory contents are replaced, the synchronous illumination The diode string can be The synchronous light emitting diode string of this embodiment belongs to the static mode identification data and has a better elastic design. The data transfer can be as shown in FIG. The data is encoded in the form. The data is transmitted at the predetermined time interval by "0" and "1". The same can be defined when there is no data for a period of time, such as the signal stays at VDD or VSS, when there is no more than a period of time. When any data is displayed, it indicates that the command is locked and the display changes. This can also successfully cause the power converter M318739 20 to transmit data, clock and simultaneous display signals with an output pin DO. Synchronous illumination of this embodiment The diode string requires each clock module 50 to generate a clock to identify the data.

§ When the synchronous light-emitting diode string has a large number of LED modules 50, the transmission nickname and power line will be very long, and the voltage or current will be lost due to the line resistance. Therefore, it is necessary to have a constant current. The function makes the brightness of all LED modules consistent. Referring to Fig. 16, a block diagram of a constant current output circuit of the driving circuit 545 of the four-legged LED module is shown. When the data of the temporary storage circuit 544 is latched, the data is converted into an analog signal via the digital/analog conversion circuit 545a and input to the north input of the signal amplifying circuit, and the other input terminal of the amplifying circuit 545b is connected. Up to a voltage feedback resistor 545c, and the output of the signal amplifying circuit 545b is connected to the gate of a M?s transistor 545d, whereby the signal amplifying circuit 545b is adjusted by the voltage feedback resistor 545c through the MOS transistor 545d. The current is supplied to provide the light-emitting diode to produce the brightness required by the user. X In the circuit block diagram shown in Figure 14, because the power level of the controller 54 of each Led module 50 is not the same, such as the seventeenth. a picture and the seventeenth b diagram, the input signal of the upper-level LED module 50 is higher than the voltage level of the controller 54 itself, so the level shift and the voltage processing must be added. The correct signal is received. Refer to the eighteenth figure for the input level displacement and decoding circuit diagram of the identification circuit 541 of the LED module 50. When the output signal of the controller 上 of the upper-level LED module 5 is received, the voltage is The level is higher than the LED module 5 The positive voltage of 〇 is high, so the DC value of the input signal is filtered by a capacitor 54ia, and the input signal is biased by the resistors 541b, 541c within the voltage range of the M135739 of the controller 54 (VSS-2VDD). As shown in Fig. 17A and Fig. 17B, the two voltage comparators 541d, 541e are respectively connected to a reference voltage level VH, VL (as shown in Fig. 15A) to compare the bias voltages. Signal. Using the biased signal compared with VH, VL can get three states · higher than VH and VL, lower than VH and VL, or higher than VL lower than VH. When the signal is higher than vh and VL · It can be obtained as logic "1". When the signal is lower than νίί and VL, it can be obtained as logic "0". When the signal is higher than VL and lower than VH, it can be 1/2VDD. The signal after comparison is Logic,, 1, or logic, 〇,, back to 1 /2VDD change to define the clock, so the circuit of LED module 50 can identify the high and low level of the signal and the timing of the transmission, and accordingly will be correct The signal is processed by the logic control circuit 541f, and the processed signal is transferred to the shift temporary storage circuit 542 or the encoding circuit 543. The figure 19 shows the output coding circuit diagram of the coding circuit 543 of the four-legged LED module, and the output coding circuit can be used to copy and output the data. ^ As shown in the figure, the signal to be transmitted and the high and low bits are already stored in the logic control circuit 543a. The quasi-voltage signal timing, the signals are outputted through a third-shaped energy output buffer circuit 543b and bias resistors 543c, 543d, and when the signal output "1"", the third state is outputted from the buffer circuit 543b. Since the output power of the third state output buffer circuit 543b is designed to be larger than the power of the resistors 5+43c and 543d, the signal of the output pin D〇 is pulled to the zeta potential 1 right slave output “0”, The three-state output buffer circuit inputs the right 2 output and the third state 'the third state wheel-out buffer circuit has an output' (10) the signal of the pin DO will be virtual due to the bias of the upper and lower resistors 543c, 543d, The tongue system (4) is in the D state, whereby the heavy clothing of the letterhead can be completed and transmitted to the LED module 5〇 of the next stage. M318739 The LED module 50 further includes a register diode 546 to limit the working voltage applied to each controller 54 to be clamped in a fixed range to prevent the voltage from being too high and causing the controller to be burned. 54 or LED module 50 。 After a detailed description of the preferred embodiment of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope and spirit of the following claims. It is not limited to the embodiments of the embodiments set forth in the specification. 17 M318739 [Simple Description of the Drawings] The first A is a block diagram of a three-legged LED module according to a preferred embodiment of the present invention, and the first B is a functional block diagram of the controller of the first A; A three-legged LED module is connected to one of the circuit blocks of the light string; the third figure is another circuit block diagram of the three-legged LED module connected to the light string, and the fourth figure is a three-legged LED module connected in series One of the circuit block diagrams of the light string; the fifth figure is another circuit block diagram of the three-legged LED module serially connected to the light string; the sixth figure is the level shift of the embodiment shown in the fourth and fifth figures The circuit block diagram of the circuit; the seventh figure is a block diagram of a two-legged LED module according to another preferred embodiment of the present invention, and the eighth figure is a circuit block diagram of a tandem LED string of a two-legged LED module; The picture shows another circuit block diagram of the two-legged LED module serially connected to the light string; the tenth figure shows a circuit block diagram of the two-legged LED module connected to the light string; The structure diagram of the four-legged LED module of the embodiment; the twelfth A is a block diagram of the LED module shown in the eleventh figure; the twelfth B is the control of the twelfth A picture The functional block diagram of the controller; the thirteenth figure is a circuit block diagram of the four-legged LED module connected to the light string, and the fourteenth figure is one of the four-legged LED module serialized light string circuit block 18 M318739 Figure 15 and Figure 15B are schematic diagrams of the signal transmission of the four-legged LED module; Figure 16 is a block diagram of the constant current output circuit of the four-legged LED module; Figure 7B shows the in-line signal of the four-legged LED module. Figure 18 shows the input level displacement and decoding circuit diagram of the four-legged LED module. Figure 19 shows the output of the four-legged LED module. The coding circuit diagram; the twenty-fifth figure is a circuit block diagram of a conventional LED light string; the twenty-first figure is another circuit block diagram of a conventional LED light string; the twenty-second figure is another of the conventional LED light string A circuit block diagram; The twenty-third figure is a circuit block diagram of a conventional LED module [main component symbol comparison description] 10, 40, 50... LED module 11, 12, 13, 51, 52, 53... Polar body 14, 54 ... controller 141 ... clock synchronization circuit 141a, 543b ... output buffer circuit 141b - input buffer circuit 141c, 15 541a...capacitor 142...counting circuit 143...control logic circuit 19 M318739 144...drive circuit 20—power conversion benefit 30—parent power supply 16, 545b... signal amplification circuit 541... identification circuit 541b, 541c, 543c, 543d... resistance 541d, 541e... comparison circuit 541f, 543a... control logic circuit 542... displacement register circuit 543 - encoding circuit 544 - temporary storage circuit 545... drive circuit 545 a... digital/analog conversion circuit 545c - voltage feedback resistor 545d... MOS transistor 546...Sina dipole

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Claims (1)

M318739 IX. Patent application: I. A synchronous LED light string controller, including: · a logic circuit, connected to the data input pin; and h control logic circuit, lightly connected to a data output pin; The machine pin and f material output pin table do not have the material logic H, the data logic l and the data 遴 short secret time transmission data transmission. , , Belle M, and the same as the above 2. 2 Please refer to the synchronization of the data in the i-th item (10) in the data wheel pin and the data output pin on the flute: and the first bit The quasi-representation transmission data 3 Γ level quasi-representation (4) logic Μ, the third level indicates the transmission of data = 3 · as described in the second paragraph of the patent application scope, the information has the first level of information logic 2: one control After the logic L, the aforementioned data output pin:: the level of data is logically Μ. 1 is the same as the younger brother. 4. A synchronous LED string controller, comprising: a first control logic circuit, coupled with the -second control logic circuit, lightly connected to the second: and wherein The data input pin and the data are output, and the signal of the logical H is output at a predetermined time interval. Bellow's logic and timely transmission 21