TWM312158U - Synchronous serial LED lamps controller - Google Patents

Description

M312158 VIII, new description: [New technology field] This creation is related to a kind of TPn, which is connected to the LED light string synchronous action: air compressor, especially - application "door step LED string controller. [Prior Art] The application of the light string has always been a bunch of old scorpions, building light strings....etc., with the hair ^f ': such as Christmas lights, the landscape lights are getting cheaper, will be led, with rush j fD) System (four) progress and price > 疋 for DC power, and the light string is used in the library I see the market. But how to = = = for the string, there are some product barriers. This creation is a result of the financial problems that have been overcome by this work. Therefore, the research on the special d-input has been made, and the LED string that has been given is like the twentieth, twenty-first and first-S prior art. 'Each of them - the light-emitting module is representative - Ϊ X search color core group. According to the prior art, the technology shown in the twentieth diagram is the most 4' because of the DC parallel type, all LED modules are connected in parallel, = cancel, the current is large, that is to say, the power converter is required to supply large /; , L is difficult to handle or high cost, or LEDs that can be connected in parallel are limited. The technology shown in Fig. 21 is better than the technique shown in Fig. 20, because the LED pull group is in series, so the current is small, so the power converter is easy to handle and the cost is low. However, this technology still has a defect, that is, the LED module of the string has its limitation. Depending on the DC voltage supplied by the power converter, the higher the voltage of the 5 M312158, the more the LED module can be stringed. The technique shown in Figure 2 is the best of the three, replacing the -+ non-power converter with each small power supply and converter. Ξτ: Only a small shortcoming is that one early =^^^, so the product cost is higher. , money - a small (four) converter, Τ Φ in the first ten, twenty-first and twenty-two pictures shown in the previous bracket = ' used b LED model button contains a red light two = LED ), - Green light: polar body (GL = LED) and a deterrent defeat, Shangrong - Chiyou one pole, λ Λ road as shown in the brothers figure. The conventional LEDf 杳, one pin is externally connected to the positive and negative ends of the DC power supply, and the control circuit is a integrated circuit (1C), which is set according to the original circuit, the two primary colors RGB LED or Make a mixture of colors. However, the shortcoming of the conventional 杈^ is that each of the independent control 1C is implanted, so when applied to Lu, the color change of each LED module after the power is turned on is independently operated, and no synchronization is achieved. 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 effect of synchronization 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 control state to receive a synchronization signal for LED string Synchronous control, so that the LED string is synchronized. 6 M312158 The present invention provides a synchronous pulse synchronization circuit that receives a solid D string controller 'including: - the reference signal generation - system clock signal ' and generates a - timing signal according to the pre-clock"; The foregoing system sequence signal is used to generate a control signal; and the second time signal is received by the =2 channel to drive at least the light emitting diode. Drive the pen path, receive the aforementioned control, achieve one of the purposes of this creation

Single structure, _receive - with frequency controller, skewed to the synchronous control of the string.手 芩 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 唬 LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED LED For example, just do it [Implementation] Receive a t-synchronous LED string controller, and use the - controller to receive the step field to control the LED material. The group side is like a three-legged model, and the 哕 抆 system 14 is combined with an LED module.

L'-Si, !; 1〇 further includes a red light-emitting diode (R-pole body (BLEDm X-ray one body (G LED) 12 and one blue light-emitting diode) to provide display effects of different colors. The device 14 LE=the road, and the controller 14 can pre-successfully drive the color change of the light-emitting diodes such as the G, LEm2 and B LED13, etc. according to the present invention. For example, the LED module 1 has three 7 M312158 yang: connect: v+, - cathode pin v- and - synchronously connect LEDj; 〇TtT^: r;: r firm, original, and the synchronous pin That is, connected to the $, 疋 ^ page rate of the McCaw nickname (or synchronization signal SYNC); Lu s Γ妾 Γ妾 接收 receiving - with a solid (four) rate of reference signal (or synchronization letter ' and the controller 14 based on Reference signal (or synchronization signal)

Control R LED 11, G LED 12, and B led 13 to change the color change sequence or blink mode. ^ 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Wherein, the synchronous % channel 141 is configured to receive an external synchronization signal, and the synchronization signal is synchronized with the internal frequency of the controller 14 to avoid causing a signal error 'and the processed signal is used as a clock of the internal circuit. The counting circuit 142 counts the signal processed by the clock synchronization circuit ι41 to generate a timing required inside the controller 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 8 M312158 LED or a G LED or a BLED, and the monochromatic light-emitting diode lamp has three 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 control state 14. Similarly, in various embodiments, the control 14 can output a reference signal (or synchronization signal SYNC) having a fixed frequency at the synchronization pin, or receive a reference signal (or synchronous (four) SYNC) at the synchronization pin. ), and the control! | 14 Controls the monochromatic light-emitting diode illumination frequency based on the reference signal (or sync ## SYNC). The first picture and the third picture are implemented in parallel with the LED module ι〇 block diagram, and a synchronous light emitting diode string includes: power supply, state 20 and a plurality of ^ ED modules 1 〇, The power converter will provide a dc voltage to drive a synchronous light-emitting diode string composed of a plurality of coffee module sub-connectors.

In the 'synchronous light-emitting diode string, # these LED modules 10 take the time' because of the two systems of the controller 14 of each led module 10; therefore, as long as the same synchronization signal SYNC is connected to all It is a controller 14 that can use this synchronization signal s YN c to make a cry. The synchronous light-emitting diode light string can also be used to realize the (4) synchronization signal SYNC by using a power supply in a simple manner, and the implementation of the idl image is implemented in the serial LED module 10 2〇ik^tw The synchronous light-emitting diode lamp string comprises a power supply Ϊ Ϊ; 3 〇 LED ^ ^ 1 〇, 20,, ^ ', positive 'guap" for the DC voltage to drive by a plurality of modules 9 M312158 10 serially composed String of lights. In the series of light-emitting diodes, when the LED module 10 is connected, although it is difficult to manufacture, it can be effectively reduced. As shown in the fourth and fifth figures, the upper-level LED module 10 The foot line is connected to the anode pin of the next-level LED module 1,, so: 2: The potential of the LED module 1〇 is not equal. Therefore, fixed frequency

^ No. 5 (or 冋 信号 signal sYNC) is transmitted to the next L foot: ί Controller 14 is not recognized, so 1# between the upper and lower legs must be in the correct displacement mode to make the signal level The voltage level six diagram is the level shifting of the embodiment shown in the fourth and fifth figures: circuit block diagram. As shown in the figure, between the upper and lower stages of the sync pin snubber circuit 141a and the input buffer circuit 141b, a capacitor 41c=connects the 'fine capacitor 141e' to the button and retains the AC signal module 1〇. The synchronous pin can obtain the same frequency to 2 tea test money (or sync money SYNC) to synchronize the action of the step-light LED string. The seventh chart of the tea test is a block diagram of a two-legged LED module according to another preferred embodiment of the present invention. The controller 14 of the present invention is incorporated into an LED module 10, which includes a red LED (R LED) 11, a green LED (G LED) 12, and a blue color. Light-emitting diode (1) 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 RLEDU, GLED12, and Bl3di3 or flash M312158. According to the preferred embodiment of the present invention, the LED module 10 has two legs, which are an anode pin V+ and a cathode pin, and the anode pin and the cathode pin receive a supply to the LED die. Group 10 DC operating voltage. In this embodiment, the LED module 4 utilizes a carrier signal provided on the DC voltage connected to the anode to obtain synchronous control by demodulating the carrier signal, thereby causing the 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 synchronous SYNC) at the synchronization pin and the control state 14 is based on the reference signal ( Or the synchronization signal U, GLED 12&BLED 13 changes the color change sequence or the flashing wedge type. The eighth, ninth and tenth pictures of the Mai Kao are used for the LED module 4〇 The circuit block diagram of the embodiment. The power converter 2G rectifies the AC power source 3G and provides two direct voltages to drive a synchronous light emitting diode voltage composed of a plurality of LED modules 40. The power conversion The reference signal output by the device 2 is the carrier money of the 直流 solution in the direct current, and the dc value of the carrier signal of the input signal is saved by the capacitor. The input DC voltage is demodulated Wave signal, and achieve the purpose of the system. And the controller of the LED module 4〇 can not only have the function of DC, but also can carry the carrier signal to the LEDrt 'sub-output to the lower-level LED module 4G俾 下 下 下 控 控 载波 载波 载波 载波 载波 载波 载波 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 a pin v+, a cathode pin V·, an input pin DI and a wheel pin d. The anode pin and the cathode pin are used to receive a DC voltage, and the wheel is connected to receive a DC Signal, and the output pin DO is used to output a signal. Referring to the thirteenth A® is a block diagram of the LED module shown in the tenth-figure, in this embodiment, the present invention provides an LED module. , a light diode (R LED) 51, a green light emitting diode (G LED) 52, a color light emitting diode (B LED) 53 and a batch, a 丨 〇 ^ by - integrated circuit Implementation, and the control crying control = 14 ^ Hai controller 54 can input the signal to drive RLEDir: 4 two, f into the color change order or flashing form, or will B LEtD 5= is output by the output pin DO. In the middle, the signal sent by the society is said to be “only” or the signal transmitted by the beggar can be easily transmitted: it can be a general data signal. σ~田作同步#, also refer to The twelfth diagram is a twelfth diagram, and the controller 54 further includes a function block circuit 542 of the controller, an encoding circuit (4) 54, a displacement temporary storage 545, and a quenching diode 546. Sub-channel 544, a driver circuit

The signal input and input circuit 541 is used to receive the identification circuit (4) for transmission. The displacement temporary storage circuit is used to receive the displacement temporary storage circuit 542, 9; The memory circuit 544 is based on the complete data of the temporary circuit, and the drive circuit 51, the G LED 52 and the B coffee device complete the R LED and the code circuit 543 accepts the sequence or In the blinking form, the indication of the tower 541 is determined to output the complete data code of the 12 M312158 the displacement temporary storage circuit 542 to the pin DO. The identification circuit 541 identifies whether the data received by the input pin DI is the LED. The instruction of the core group 50 or the re-encoding of the tribute is output from the output pin DO to the next-level LED module 50. Referring to the thirteenth and fourteenth views, the LED module 50 is applied to the synchronous light-emitting diode lamp _ The circuit block diagram of the embodiment. In the circuit block diagram shown in the thirteenth diagram, the synchronous light emitting diode string includes a plurality of LED modules 50, and the LED modules 50 are connected in parallel, and Between the upper and lower LED modules 50, the output pin DO of the upper LED module 50 is At the same time, it is connected to the input pin DI of the next-level LED module 50. In this embodiment, the power converter 20 for supplying the DC power to the synchronous LED string has data processing capability, and can be output by a signal line SL. The data is input to the input pin DI of the first LED module 50 to control the color change sequence or flashing form of the synchronous LED string. The power converter 20 can have a built-in microprocessor or data processor and memory. The form or effect to be displayed by the synchronous light emitting diode string, such as a running light or a lottery or chase effect, or even a specific graphic, etc. When the power converter 20 is connected to the alternating current power source 30, it is micro-processed. The data processor or the data processor captures the data of the memory, and transmits the data, the clock, and the simultaneous display by the signal line SL in a specific data format. The fifteenth A picture and the fifteenth B picture are LED modes. The group 50 transmission signal diagram. The data transmission method of the creation can be exemplified by the following two methods, one is a voltage level plus a clock method, as shown in the fifteenth A picture. 20 Before starting to transmit data, the signal line SL is in the state of no data 13 M312158, and is represented by the voltage level of 1/2 VDD. When the power converter 2 starts transmitting data, the digital signal "丨,, or "〇, It is used to represent the data of the instructions executed by each module 50, and the actions performed can be defined in advance. During the process of transferring data, each bit "丨,, or "〇," must be returned at the end. The 1/2 VDD voltage level is then transmitted to the next bit, so that the data and time can be included at the same time. The controller in each LED module 5〇 is to receive the data, and after identification by the identification circuit 541, After processing, the poor material is encoded into the same signal format via the encoding circuit 543 and then transmitted to the next-level LED module 50. Each of the synchronous LED strings is pre-defined with the total number of LED modules 50, so that each time the microprocessor or data processor needs to change the brightness or color, the bits corresponding to the total number of LED modules 50 are transmitted. Groups, each tuple will be properly passed to each LED module 50. After the data transfer is completed, the output pin D of the power converter and the output pin DO of the LED module 50 will stay at the 1/2 VDD level. In this embodiment, the author can define the output over a certain period of time. When 1/2VDD appears on pin D〇, the data is locked and displayed. Therefore, as long as the different memory contents are replaced, the synchronous light-emitting diode light string can obtain different light-emitting or display-changing light strings. The synchronous light-emitting diode light string of this embodiment belongs to the static mode identification data. And has a better elastic design. Another type of data transfer can be formatted as shown in Figure 15B. The data is transmitted at a predetermined time interval, 〇" and "1", and 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 data for more than a period of time, then It is indicated as a lock command and a display change, so that the power converter 20 can also successfully transmit data, clock and simultaneous display signals with an output pin DO.

M312158 The synchronous LED lamp of this embodiment produces a clock to identify the data. ¥ and the mother LED 杈 group 50 from the time, the body light string has a large number of LED module% "ίΐϊ:: if the power line will be very long, and due to the line resistance will cause private £ or package ", The loss of L, therefore, and the brightness of all the LED dies of both ancient times is the block diagram of the constant current output circuit of 545. When the data is temporarily locked, the data is converted by digital/analog: Γ=士信号 input to the input terminal 545b of the signal amplifying circuit (10), the other input terminal is connected to the -voltage feedback electric body 5 and the second terminal is placed: the circuit (10) is terminated by the terminal - M〇S electricity: body leakage The gate 'the signal amplifying circuit 545 adjusts the current through the transistor S (10) to provide the brightness required by the user to generate the polar body. In the circuit block diagram shown in the fourteenth figure, because each of the LED modules 5〇, the power supply level of 54 is different, as shown in the 17th b of the 17th a, the round-in signal of the upper-level (four) module 5〇, the pulse height of the pulse = 54 itself. Accurate, so you need to add level displacement and voltage bias processing to receive the correct signal. Refer to Figure 18 for LED module 50 The input level displacement and the decoding circuit diagram of the identification circuit 541, when the output signal of the controller 54 of the upper-level LED module 5 is transmitted, the voltage level is higher than the positive voltage of the LED module 5〇, The DC value of the input signal is filtered by a capacitor 541a, and the input signal is biased by the resistors 541b, 541c within the operating voltage range of the controller 54 (VSS-2VDD), as in the seventeenth and seventeenth bth Pictured. 15 M312158

The two voltage comparators 541d, 541e are each connected to a reference voltage level VH, VL (as shown in Fig. 15a) to compare the biased signals. Using the signal after the bias is compared with VH and VL to obtain 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 regarded as logic "丨". When the signal is lower than vH and VL, it can be logic "0". When the signal is higher than VL and lower than VH, it can be obtained as i/2VDd. By comparing the signal to logic "丨,, or logic, 〇,, back to 1/2VDD change to define the clock, so the circuit of the LED module 50 can identify the high and low level of the signal and the timing of the transmission, Then, the correct signal is sent to the logic control circuit 541f for processing, and then the processed signal is transmitted to the displacement temporary storage or the encoding circuit 543. Exhibit iii: Nine: the encoding circuit of the four-legged LED module The output of 543 is as shown in the figure. The codec circuit can copy and output the data. ^There is no voltage signal timing in the non-control circuit 543a that needs the number of the transmission wheel and the lower level. The signal buffer circuit 543b and the bias + p diary output, 1", then -^i C, 543d, when the signal is to be output, the signal is output: "1" Since the output power conversion meter of the design 543c 5-43d punch circuit 543b is larger than the resistance-coin, the rate 'is the output pin DO at this time. The pull is pulled to the south potential T. If you want to output, 〇,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Output, then: Resentment, let the signal of the bias pin of the third state output buffering power 543c, 543d will be reproduced due to the upper and lower resistance numbers and transmitted to the lower _^ 1/2VE^ state. The LED pull group of the letter, and can be completed 5〇. The LED module 5 is inserted into a Niucheng and the 50 乂0 includes a dipole 546 to limit the operating voltage of the 16 M312158 applied to each controller 54 to be clamped in a fixed range to avoid excessive voltage. Circumstances that result in the burning of the controller 54 or the 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 can be made without departing from the scope and spirit of the following claims. And changes, and the present creation is not limited to the embodiments of the embodiments set forth in the specification.

17 M312158 [Simple description of the drawing], the first A picture is a block diagram of the three-legged LED module of a preferred embodiment; 'The first B picture is a functional block diagram of the controller of the first A picture; The second picture shows the circuit block diagram of the three-legged LED module connected to the light string; the third picture shows the other circuit block diagram of the three-legged LED module connected to the light string; the fourth picture shows the three-legged LED mode One of the circuit block diagrams of the string connected to the string; • The fifth diagram is another circuit block diagram of the tandem LED string of the three-legged LED module, 第六 The sixth figure is the embodiment shown in the fourth and fifth figures The circuit block diagram of the level shifting circuit'; the seventh figure is a block diagram of the two-legged LED module of another preferred embodiment of the present invention, and the eighth figure is a circuit block of the stringing LED string of the two-legged LED module Figure 9 is a block diagram of another circuit of a two-legged LED module connected to a string of lights; ® Figure 10 is a block diagram of a two-legged LED module connected to a string of lights; An architectural diagram of a four-legged LED module of another preferred embodiment is created; FIG. 12A is a block diagram of the LED module shown in FIG. 11; Figure 12 is a functional block diagram of the controller; Figure 13 is a circuit block diagram of a four-legged LED module connected to a light string, and Figure 14 is a four-legged LED module connected to a string of lights. A circuit block 18 M312158 picture, the fifteenth A picture and the fifteenth B picture are four-legged LED module transmission signal is not intended, the sixteenth figure is a four-legged LED module constant current output circuit block diagram, the first 17A and 17B are schematic diagrams of the serial input signal of the four-legged LED module; Figure 18 is the input level displacement and decoding circuit diagram of the four-legged LED module; Figure 20 is a circuit block diagram of a conventional LED light string; Figure 21 is another circuit block diagram of a conventional LED light string; Another circuit block diagram of the LED light string is known; the twenty-third figure is a circuit block diagram of the conventional LED module. [Main component symbol comparison description] 1〇, 40, 50—LED modules 11, 12, 13, 51, 52, 53... Light-emitting diodes 14, 54... Controller 141...a Temple synchronization circuits 141a, 543b... Output buffer circuit 141b - input buffer circuit 141c, 15, 541a ... capacitor 142 ... counting circuit 143 ... control logic circuit 19 M312158, 144 ... drive circuit 20 - power conversion to 30 - parent current power supply ^ 16, 545b ... signal amplification circuit ' 541...Identification circuit 541b, 541c, 543c, 543d...Resistance 541d, 541e...Comparative circuit 541f, 543a...Control logic circuit 542...Displacement register circuit 543 - Encoding circuit 544 - Temporary circuit 545 - Drive circuit 545a...Digital / Analog conversion circuit 545c... Voltage feedback resistor 545d... MOS transistor 546... Sense diode

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Claims (1)

M312158 IX. Patent application scope: 1. A synchronous LED light string controller, comprising: a clock synchronization circuit, receiving a reference signal having a fixed frequency, and generating a system clock according to the reference signal; a counting circuit, counting the foregoing a system clock and generating a timing signal; a control logic circuit receiving the timing signal to generate a control signal; and a driving circuit receiving the control signal to drive at least the light emitting diode 2. A synchronous LED string controller The method includes: a quasi-displacement circuit receiving a reference signal having a fixed frequency, and having a capacitor to filter the DC value of the reference signal and retaining the AC value, and alternating the AC value of the reference signal with a voltage bias The voltage level of the controller is unanimous; a clock synchronization circuit synchronizes the AC value of the reference signal with the internal frequency of the controller to output a system clock; a counting circuit counts the system clock and generates a timing signal; a control logic circuit that receives the aforementioned timing signal to produce A control signal; and a driving circuit for receiving the control signal to drive at least one light emitting diode. 3. A synchronous LED light string controller, comprising: an identification circuit, receiving a reference signal having a fixed frequency for 21 M312158 level displacement and voltage bias processing, and outputting an identification-displacement temporary storage circuit, receiving and Storing the foregoing identification; the second encoding circuit receives the displacement temporary storage circuit '2, one encodes and outputs the foregoing data; the data of the storage, a temporary storage circuit, the complete data; and the storage and storage of the storage data of the former granule storage circuit The stored data drives a driving circuit to receive at least one of the light emitting diodes of the temporary storage circuit. • The LED light string control identification circuit receives a DC value/number with a fixed frequency-capacitance filter for filtering the reference signal, and uses the bias resistor to bias the filtered reference signal to a current value. Within the operating voltage range of the controller, and "^ in the aforementioned synchronous LED connection-reference voltage level to compare with the two-inflammation of the two-phase comparator - each of the aforementioned reference signals is higher than the aforementioned 岐: rail comparison, and the wheel The two reference voltage levels or two:: voltage level, lower than the identification signal; a displacement temporary storage circuit between the four test voltage levels, the receive-one-encoding circuit, receiving the aforementioned displacement C number , · encode and publish the W data; the data stored in the I road, a temporary storage circuit, pure storage # complete data; and the circuit stored in the temporary storage circuit 'receive the temporary storage to> A light-emitting diode.斤Storage data to drive 22 M312158 5. A synchronous LED string controller, comprising: an identification circuit, receiving a reference signal with a fixed frequency for / level shift and voltage bias processing, and outputting an identification signal a displacement temporary storage circuit for receiving and storing the identification signal; an encoding circuit having an output buffer circuit and a bias resistor, wherein an output power of the output buffer circuit is greater than an output power of the bias resistor, and the encoding circuit receives The resource stored in the displacement temporary storage circuit outputs the same data by the output buffer circuit, and biases the data outputted by the output buffer circuit to the synchronous LED string controller by using the bias resistor. Within the voltage range, and outputting the data after the partial pressure; a temporary storage circuit receives and stores the _ complete data stored by the displacement temporary storage circuit; and a driving circuit that receives the data stored by the temporary storage circuit to drive At least one light emitting diode. twenty three