CN105491730A - USB interface LED lamp string control system - Google Patents
USB interface LED lamp string control system Download PDFInfo
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- CN105491730A CN105491730A CN201610053130.0A CN201610053130A CN105491730A CN 105491730 A CN105491730 A CN 105491730A CN 201610053130 A CN201610053130 A CN 201610053130A CN 105491730 A CN105491730 A CN 105491730A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/42—Antiparallel configurations
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Abstract
The invention relates to a USB interface LED lamp string control system, which includes a power supply with a USB interface, a power line with a USB joint, a controller and an LED lamp string. The USB joint is inserted into the USB interface of the power supply to enable one end of the power line to be electrically connected to the power supply, the other end of the power line is electrically connected to one end of the controller, and the other end of the controller is electrically connected to the LED lamp string. The LED lamp string is applicable to all power supplies with USB interfaces, and power can be provided to the LED lamp string as long as the power line with the USB joint is inserted into the power supply. Therefore, the USB interface LED lamp string control system is highly applicable. Fewer control circuit elements are adopted by the controller. The stability is high. Only two terminals are needed to be connected to the LED lamp string, so the cost is reduced.
Description
Technical field
The present invention relates to LED field, particularly relate to a kind of LED lamp with USB interface string control system.
Background technology
The power unit of traditional LED lamp string control system must use the Special low-voltage power supply of 3V-36VAC/DC; And the connector many types of the Special low-voltage power supply of 3V-36VAC/DC, and the standard of each factory differs, cannot be general or exchange and use; Traditional LED lamp string is generally used as decoration, it is seasonal product, specially generally can clear up after season, can clear up together with Special low-voltage power supply during general cleaning, directly waste power supply, and the cost of low-tension supply occupies the 20-60% of LED string total cost, therefore cause the pollution of environment and the waste of resource simultaneously.
Although and the control circuit of traditional LED string control system is two-way control circuit, generally needs three terminals, do not have energy-conservation effect when contacting connect with lamp.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of LED lamp with USB interface string control system.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of LED lamp with USB interface string control system, comprises the power supply possessing USB interface, the power line possessing USB joint, controller and LED string;
One end of described power line is connected with described power electric by the USB interface of its USB joint being inserted described power supply, and the other end of described power line is electrically connected with one end of described controller, and the other end of described controller is connected with described LED crosstalk.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described power supply comprises the socket, host computer or the charger baby that possess USB interface.
Further, the control circuit that described controller uses is first control circuit;
Described first control circuit comprises the first master control IC chip, the first decoupling filter circuit, the first clock circuit and the first key circuit, and wherein, described first clock circuit is connected with described first master control IC chip with described first key circuit;
Described first decoupling filter circuit comprises an electric capacity C11, and one end of described electric capacity C11 and the first pin of described first master control IC chip all connect input power, the other end ground connection of described electric capacity C11;
Described first clock circuit comprises an oscillator Y11, and the two ends of described oscillator Y11 are connected with three-prong with the second pin of described first master control IC chip respectively;
Described first key circuit comprises key switch S11 and key switch S12, one end of described key switch S11 is connected with the 4th pin of described first master control IC chip, one end of described key switch S12 is connected with the 5th pin of described first master control IC chip, and the lead-in wire that the other end of the other end of described key switch S11, the other end of described key switch S12, described electric capacity C11 and the 6th pin of described first master control IC chip are drawn converges rear ground connection.
Further, described LED string uses the first lamp string circuit, and described first lamp string circuit is connected with described first control circuit;
Described first lamp string circuit comprises one group of LED group and resistance R11, and described LED group comprises multiple LED, and is positive and negative interval parallel relationship between multiple LED;
Multiple LED of described LED group draw two terminals, and one of them terminals is connected with the 7th pin of described first master control IC chip by described resistance R11, and another terminals are connected with the 8th pin of described first master control IC chip.
Further, the control circuit that described controller uses is second control circuit;
Described second control circuit comprises the second master control IC chip, the second decoupling filter circuit, the second key circuit, second clock circuit, indicating circuit, selection circuit, booster circuit, protection testing circuit and power output circuit; Wherein, described second key circuit, described second clock circuit, described indicating circuit, described selection circuit, described booster circuit, described protection testing circuit and described power output circuit are all connected with described second master control IC chip;
Described second decoupling filter circuit includes polar capacitor C21, described in have the positive pole of polar capacitor C21 to be all connected with input power with the 4th pin of described second master control IC chip, described in have the minus earth of polar capacitor C21.
Further, described second key circuit comprises key switch S21 and key switch S22; One end of described key switch S21 is connected with the second pin of described second master control IC chip, one end of described key switch S22 is connected with the three-prong of described second master control IC chip, and the negative pole of the other end of described key switch S21, the other end of described key switch S22 and described electric capacity C21 converges rear ground connection;
Described second clock circuit comprises electric capacity C21, electric capacity C22 and oscillator X21,5th pin of described second master control IC chip is connected with one end of described electric capacity C21 and one end of described oscillator X21 respectively, 6th pin of described second master control IC chip is connected with one end of described electric capacity C22 and the other end of described oscillator X21 respectively, and the other end of described electric capacity C21 and the other end of described electric capacity C22 converge rear ground connection;
Described indicating circuit comprises resistance R24 and optical diode LED21, one end of described resistance R24 is connected with the 8th pin of described second master control IC chip, the other end of described resistance R24 is connected with the positive pole of described optical diode LED21, the minus earth of described optical diode LED21;
Described selection circuit comprises K switch 21, and the tenth pin of described second master control IC chip is connected with one end of described K switch 21, and described 11 pin of the second master control IC chip and the other end of described K switch 21 converge rear ground connection.
Further, described booster circuit comprises inductance coil L21, resistance R21, NPN type triode Q21, diode D21 and has polar capacitor C24;
One end of described resistance R21 is connected with the first pin of described second master control IC chip, and the other end of described resistance R21 is connected with the base stage of described triode Q21; The collector electrode of described triode Q21 is connected with one end of described inductance coil L21 and the positive pole of described diode D21 respectively; 4th pin of the other end of described inductance coil L21 and the positive pole of described electric capacity C21 and described second master control IC chip together accesses input power; the negative pole of described diode D21 has the positive pole of polar capacitor C24 to be connected with described respectively and accesses described protection testing circuit, described in have the negative pole of polar capacitor C24 to draw with the emitter of described triode Q21 respectively lead-in wire converge rear ground connection and access described protection testing circuit.
Further, described protection testing circuit comprises resistance R25 and resistance R26;
One end of described resistance R25 is connected with the negative pole of described diode D21, the positive pole of described electric capacity C24 and accesses described power output circuit respectively, and the other end of described resistance R25 is connected with described 12 pin of the second master control IC chip and one end of described resistance R26 respectively; The emitter of the other end of described resistance R26 and the negative pole of described electric capacity C24 and described triode Q21 converges rear ground connection.
Further, described power output circuit comprises resistance R22, resistance R23, resistance R27, resistance R28, NPN type triode Q22, NPN type triode Q23, PNP type triode Q24, PNP type triode Q25;
One end of described resistance R22 is connected with the tenth three-prong of described second master control IC chip, and the other end of described resistance R22 is connected with the base stage of described triode Q22; One end of described resistance R23 is connected with the 14 pin of described second master control IC chip, and the other end of described resistance R23 is connected with the base stage of described triode Q23; The emitter of described triode Q22 and the emitter of described triode Q23 converge rear ground connection; Be connected with the negative pole of one end of described resistance R25, the positive pole of described electric capacity C24 and described diode D21 after the emitter of described triode Q24 converges with the emitter of described triode Q25, the base stage of described triode Q24 is connected with one end of described R27, and the base stage of described triode Q25 is connected with one end of described R28; The other end of the collector electrode of described triode Q22, the collector electrode of described triode Q24 and described resistance R28 converges rear formation second terminals, and the other end of the collector electrode of described triode Q23, the collector electrode of described triode Q25 and described resistance R27 converges rear formation first terminals.
Further, described LED string uses the second lamp string circuit or the 3rd lamp string circuit, and described second lamp string circuit or described 3rd lamp string circuit are connected with described second control circuit;
Described second lamp string circuit comprises one or more LED parallel lamp group, each described LED parallel lamp group comprises the LED group of two groups of parallel connections, in the LED group of two groups of parallel connections, each LED group comprises the LED of multiple series connection, and in the LED group of two groups of parallel connections wherein the positive pole of one group of LED group is connected with negative pole of another group LED group after described first terminals of access, the negative pole of described wherein one group of LED group is connected with another positive pole organizing LED group and accesses described second terminals afterwards; If described second lamp string circuit comprises multiple LED parallel lamp group, be then parallel relationship between multiple LED parallel lamp group;
Described 3rd lamp string circuit comprises multiple LED strip connection lamp group, each described LED strip connection lamp group comprises the LED of multiple positive and negative interval parallel connection, be series relationship between multiple described LED strip connection lamp group, multiple described LED strip connection lamp group forms two terminals, described first terminals of one of them terminals access, described second terminals of another one terminals access.
The invention has the beneficial effects as follows: LED string of the present invention is applicable to all power supplys possessing USB, power supply is inserted by the power line possessing USB joint, namely can be LED statements based on collusion electricity, applicability is strong, and the control circuit element that controller of the present invention uses is few, stability is high, only needs two terminals with the connection of LED string, can be cost-saving.
Accompanying drawing explanation
Fig. 1 is the structure chart of LED lamp with USB interface string control system of the present invention;
Fig. 2 is the circuit diagram of first control circuit and the first lamp string circuit in the present invention;
Fig. 3 is the circuit diagram of second control circuit and the second lamp string circuit in the present invention;
Fig. 4 is the circuit diagram of the 3rd lamp string circuit in the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
101, the first master control IC chip, the 102, first decoupling filter circuit, the 103, first clock circuit, the 104, first key circuit;
201, the second master control IC chip; 202, the second decoupling filter circuit; 203, the second key circuit, 204, second clock circuit, 205, indicating circuit; 206, selection circuit; 207, booster circuit, 208, protection testing circuit, 209, power output circuit; 210, the first terminals, the 211, second terminals.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Fig. 1 is the structure chart of LED lamp with USB interface string control system of the present invention.
As shown in Figure 1, a kind of LED lamp with USB interface string control system, comprise the power supply possessing USB interface, possesses the power line of USB joint, controller and LED string, one end of power line is by being connected in the USB interface of its USB joint insertion power supply with power electric, the other end of power line is electrically connected with one end of controller, the other end of controller is connected with LED crosstalk, wherein, the control circuit that controller uses is first control circuit or second control circuit, when the control circuit that controller uses is for first control circuit, what LED string used is the first lamp string circuit, when the control circuit that controller uses is for second control circuit, what LED string used is the second lamp string circuit.
The power supply wherein possessing USB interface comprises and allly has USB interface and can the device of out-put supply, can for possessing the socket, host computer, charger baby etc. of USB interface.Because what general USB interface exported is 5VDC low-tension supply, meet the standard of the low-tension supply of LED string 3V-16VAC/DC, therefore do not need for LED string design specialized low-tension supply, also the problem that Power Interface Standard differs can not be produced, while having saved cost, add the applicability of LED string.
Fig. 2 is the circuit diagram of first control circuit and the first lamp string circuit in the present invention.
As shown in Figure 2, first control circuit comprises the first master control IC chip 101, first decoupling filter circuit 102, first clock circuit 103 and the first key circuit 104, wherein, the first clock circuit 103 is connected with the first master control IC chip 101 with the first key circuit 104.
First decoupling filter circuit 102 comprises an electric capacity C11, one end of electric capacity C11 and the first pin of the first master control IC chip 101 all connect input power, the power supply wherein inputted is that whole first control circuit and the first lamp string circuit are powered, the other end ground connection of electric capacity C11.First decoupling filter circuit 102 can be power filter.
First clock circuit 103 comprises an oscillator Y11, and the two ends of oscillator Y11 are connected with three-prong with the second pin of the first master control IC chip 101 respectively.First clock circuit 103 is for providing clock.
First key circuit 104 comprises key switch S11 and key switch S12, one end of key switch S11 is connected with the 4th pin of the first master control IC chip 101, one end of key switch S12 is connected with the 5th pin of the first master control IC chip 101, and the lead-in wire that the other end of the other end of key switch S11, the other end of key switch S12, electric capacity C11 and the 6th pin of the first master control IC chip 101 are drawn converges rear ground connection.Wherein, use key switch S11 can select the flashing mode of LED string and unlatching or closedown, the whole circuit using key switch S12 can open and close first control circuit and the first lamp string circuit to form.
First control circuit is also connected with the first lamp string circuit.The 7th pin being specially the first master control IC chip 101 is connected with the first lamp string circuit with the 8th pin.
First lamp string circuit comprises one group of LED group and resistance R11, and LED group comprises multiple LED, and is positive and negative interval parallel relationship between multiple LED; Multiple LED of LED group draw two terminals, and one of them terminals is connected with the 7th pin of the first master control IC chip 101 by resistance R11, and another terminals are connected with the 8th pin of the first master control IC chip 101.With A and B, LED group is distinguished in Fig. 2, across being connected in parallel between the LED wherein represented with A and the LED represented with B, the positive pole of all LED that A represents all is connected with the 7th pin of the first master control IC chip 101 by resistance R11, and the negative pole of all LED that A represents all is connected with the 8th pin of the first master control IC chip 101; The negative pole of all LED that B represents all is connected with the 7th pin of the first master control IC chip 101 by resistance R11, and the positive pole of all LED that B represents all is connected with the 8th pin of the first master control IC chip 101.Wherein, the inside of the first master control IC chip 101 has been integrated with H bridge output circuit, therefore internal signal control H bridge exports from the 7th pin of the first master control IC chip 101 and the 8th pin, and lamp string directly can receive the 7th pin and the 8th pin of the first master control IC chip 101.
As from the foregoing, the first control circuit circuit element that the present invention uses is few, stability is high, cost is low, the 7th pin and these two terminals of the 8th pin on the first master control IC chip 101 are only needed when contacting connect with LED, and traditional two-way control mode needs three terminals, lamp string electric wire used therefore can be saved.
Fig. 3 is the circuit diagram of second control circuit and the second lamp string circuit in the present invention.
As shown in Figure 3, second control circuit comprises the second master control IC chip 201, second decoupling filter circuit 202, second key circuit 203, second clock circuit 204, indicating circuit 205, selection circuit 206, booster circuit 207, protection testing circuit 208 and power output circuit 209.Wherein, the second key circuit 203, second clock circuit 204, indicating circuit 205, selection circuit 206, booster circuit 207, protection testing circuit 208 are all connected with the second master control IC chip 201 with power output circuit 209.
Second decoupling filter circuit 202 includes polar capacitor C21, has the positive pole of polar capacitor C21 to be all connected with input power with the 4th pin of the second master control IC chip 201, and input power is that whole second control circuit and the second lamp string circuit are powered.There is the minus earth of polar capacitor C21.Second decoupling filter circuit 202 can be power filter.
Second key circuit 203 comprises key switch S21 and key switch S22, one end of key switch S21 is connected with the second pin of the second master control IC chip 201, one end of key switch S22 is connected with the three-prong of the second master control IC chip 201, and the negative pole of the other end of key switch S21, the other end of key switch S22 and electric capacity C21 converges rear ground connection.Use key switch S21 can select flashing mode and the switch of lamp string.Use key switch S22 can select timing and not timing.
Second clock circuit 204 comprises electric capacity C21, electric capacity C22 and oscillator X21,5th pin of the second master control IC chip 201 is connected with one end of electric capacity C21 and one end of oscillator X21 respectively, 6th pin of the second master control IC chip 201 is connected with one end of electric capacity C22 and the other end of oscillator X21 respectively, and the other end of electric capacity C21 and the other end of electric capacity C22 converge rear ground connection; Second clock circuit 204 is for providing clock.
Indicating circuit 205 comprises resistance R24 and optical diode LED21, and one end of resistance R24 is connected with the 8th pin of the second master control IC chip 201, and the other end of resistance R24 is connected with the positive pole of optical diode LED21, the minus earth of optical diode LED21.Optical diode LED21 is used to indicate definition status, and optical diode LED21 is bright is timing, goes out for not timing.
Selection circuit 206 comprises K switch 21, tenth pin of the second master control IC chip 201 is connected with one end of K switch 21,11 pin of the second master control IC chip 201 and the other end of K switch 21 converge rear ground connection, and K switch 21 can select one group or two groups of lamp string flashing lights outputs.
Booster circuit 207 comprises inductance coil L21, resistance R21, NPN type triode Q21, diode D21 and has polar capacitor C24, one end of resistance R21 is connected with the first pin of the second master control IC chip 201, and the other end of resistance R21 is connected with the base stage of triode Q21; The collector electrode of triode Q21 is connected with one end of inductance coil L21 and the positive pole of diode D21 respectively; 4th pin of the other end of inductance coil L21 and the positive pole of electric capacity C21 and the second master control IC chip 201 together accesses input power; the negative pole of diode D21 protects testing circuit 208 with having the positive pole of polar capacitor C24 to be connected and access respectively, and the lead-in wire having the negative pole of polar capacitor C24 to draw with the emitter of triode Q21 respectively converges rear ground connection and accesses protects testing circuit 208.
The voltage boosting pulse of the second master control IC chip 201 entered resistance R21 and controlled triode Q21 switching time, electric current according to the ETAD expected time of arrival and departure of triode Q21 through inductance coil L21 and triode Q21 to GND power consumption, while also for inductance coil L21 charges; According to the time that triode Q21 closes, the electricity that inductance coil L21 is full of raises to electric capacity C24 charging through diode D21, when triode Q21 opens again, due to diode D21 one-way conduction, electric current can not flow to triode Q21, thus the electric energy obtained through the consumption of lamp string, can only complete the process from boosting to power consumption.
Protection testing circuit 208 comprises resistance R25 and resistance R26, one end of resistance R25 is connected and access power output circuit 209 with the negative pole of diode D21, the positive pole of electric capacity C24 respectively, and the other end of resistance R25 is connected with the 12 pin of the second master control IC chip 201 and one end of resistance R26 respectively; The emitter of the other end of resistance R26 and the negative pole of electric capacity C24 and triode Q21 converges rear ground connection.Whether resistance R25 and resistance R26 is too high for detecting boosting; if detect that boosting is too high, powered-down thus protection component reduce power supply waste; electric current when boosting too high through resistance R25 increases; on resistance R26, terminal potential rises; when terminal potential on resistance R26 is equal to or greater than the value of the second master control IC chip 201 setting; second master control IC chip 201 stops exporting, and booster circuit 207, power output circuit 209 and indicating circuit 205 quit work thereupon.
Power output circuit 209 comprises resistance R22, resistance R23, resistance R27, resistance R28, NPN type triode Q22, NPN type triode Q23, PNP type triode Q24, PNP type triode Q25, one end of resistance R22 is connected with the tenth three-prong of the second master control IC chip 201, and the other end of resistance R22 is connected with the base stage of triode Q22; One end of resistance R23 is connected with the 14 pin of the second master control IC chip 201, and the other end of resistance R23 is connected with the base stage of triode Q23; The emitter of triode Q22 and the emitter of triode Q23 converge rear ground connection; Be connected with the negative pole of one end of resistance R25, the positive pole of electric capacity C24 and diode D21 after the emitter of triode Q24 converges with the emitter of triode Q25, the base stage of triode Q24 is connected with one end of R27, and the base stage of triode Q25 is connected with one end of R28; The other end of the collector electrode of triode Q22, the collector electrode of triode Q24 and resistance R28 converges the collector electrode of rear formation second terminals 211, triode Q23, the collector electrode of triode Q25 and the other end of resistance R27 and converges rear formation first terminals 210.The flashing light of the second master control IC chip 201 exports and controls triode Q22 and triode Q23 respectively through the resistance R22 of power output circuit 209 and resistance R23 and open and close, also the light on and off of lamp string is just controlled, when triode Q23 conducting, triode Q24 also follows conducting, one group of lamp string is lit, when triode Q22 conducting, triode Q25 also follows conducting, and another group lamp string is lit.
Second control circuit is also connected with the second lamp string circuit or the 3rd lamp string circuit.
Second lamp string circuit comprises one or more LED parallel lamp group, each LED parallel lamp group comprises the LED group of two groups of parallel connections, in the LED group of two groups of parallel connections, each LED group comprises the LED of multiple series connection, and in the LED group of two groups of parallel connections wherein the positive pole of one group of LED group is connected with negative pole of another group LED group after described first terminals 210 of access, wherein the negative pole of one group of LED group is connected with another positive pole organizing LED group and accesses the second terminals 211 afterwards; If the second lamp string circuit comprises multiple LED parallel lamp group, be then parallel relationship between multiple LED parallel lamp group.Fig. 3 provides the second lamp string circuit and comprises a LED parallel lamp group, with A and B, two groups of LED groups LED parallel lamp group comprised are distinguished, it is parallel relationship between the LED group that A represents and the LED group that B represents, the positive pole that the negative pole of the LED group that the positive pole of the LED group that A represents and B represent converges the LED group that the negative pole of the LED group that rear access first terminals 210, A represent and B represent converges rear access second terminals 211.No matter the second lamp string circuit comprises one or multiple LED parallel lamp group, when second control circuit is connected with the second lamp string circuit, does not need the both positive and negative polarity of differentiation second lamp string circuit deliberately.
Fig. 4 is the circuit diagram of the 3rd lamp string circuit in the present invention.
As shown in Figure 4,3rd lamp string circuit comprises multiple LED strip connection lamp group, each LED strip connection lamp group comprises the LED of multiple positive and negative interval parallel connection, be series relationship between multiple LED strip connection lamp group, multiple LED strip connection lamp group forms two terminals, one of them terminals accesses the first terminals 210, and another one terminals access the second terminals 211; The 3rd lamp string circuit provided in Fig. 4 comprises multiple LED strip connection lamp group, be series relationship between each LED strip connection lamp group, and each LED strip connection lamp group comprises the LED of 4 positive and negative interval parallel connections, the terminals of first LED strip connection lamp group extraction access the first terminals 210, and the terminals that last LED strip connection lamp group is drawn access the second terminals 211; When second control circuit is connected with the 3rd lamp string circuit, do not need the both positive and negative polarity of differentiation the 3rd lamp string circuit deliberately.
As from the foregoing, the second control circuit circuit element of the present invention's use is few, stability is high, cost is low, only need two terminals, and traditional two-way control mode needs three terminals, therefore can save lamp string electric wire used when contacting connect with LED.
As from the foregoing, the second control circuit circuit element that the present invention uses is few, stability is high, cost is low, only needs two terminals, with lamp contact connect time, do not need the both positive and negative polarity of differentiation lamp string; And traditional two-way control mode needs three terminals, with lamp contact connect time, also need the both positive and negative polarity distinguishing lamp string, therefore the present invention can save lamp string electric wire used, and easy to connect.
Above-mentioned first control circuit and second control circuit all adopt the mode of 150-250HZ pulse to export, and have energy-saving effect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a LED lamp with USB interface string control system, is characterized in that, comprises the power supply possessing USB interface, the power line possessing USB joint, controller and LED string;
One end of described power line is connected with described power electric by the USB interface of its USB joint being inserted described power supply, and the other end of described power line is electrically connected with one end of described controller, and the other end of described controller is connected with described LED crosstalk.
2. LED lamp with USB interface string control system according to claim 1, is characterized in that, described power supply comprises the socket, host computer or the charger baby that possess USB interface.
3. LED lamp with USB interface string control system according to claim 1, is characterized in that, the control circuit that described controller uses is first control circuit;
Described first control circuit comprises the first master control IC chip (101), the first decoupling filter circuit (102), the first clock circuit (103) and the first key circuit (104), wherein, described first clock circuit (103) is connected with described first master control IC chip (101) with described first key circuit (104);
Described first decoupling filter circuit (102) comprises an electric capacity C11, and one end of described electric capacity C11 and the first pin of described first master control IC chip (101) all connect input power, the other end ground connection of described electric capacity C11;
Described first clock circuit (103) comprises an oscillator Y11, and the two ends of described oscillator Y11 are connected with three-prong with the second pin of described first master control IC chip (101) respectively;
Described first key circuit (104) comprises key switch S11 and key switch S12, one end of described key switch S11 is connected with the 4th pin of described first master control IC chip (101), one end of described key switch S12 is connected with the 5th pin of described first master control IC chip (101), and the lead-in wire that the other end of the other end of described key switch S11, the other end of described key switch S12, described electric capacity C11 and the 6th pin of described first master control IC chip (101) are drawn converges rear ground connection.
4. LED lamp with USB interface string control system according to claim 3, is characterized in that, described LED string uses the first lamp string circuit, and described first lamp string circuit is connected with described first control circuit;
Described first lamp string circuit comprises one group of LED group and resistance R11, and described LED group comprises multiple LED, and is positive and negative interval parallel relationship between multiple LED;
Multiple LED of described LED group draw two terminals, one of them terminals is connected with the 7th pin of described first master control IC chip (101) by described resistance R11, and another terminals are connected with the 8th pin of described first master control IC chip (101).
5. LED lamp with USB interface string control system according to claim 1, is characterized in that, the control circuit that described controller uses is second control circuit;
Described second control circuit comprises the second master control IC chip (201), the second decoupling filter circuit (202), the second key circuit (203), second clock circuit (204), indicating circuit (205), selection circuit (206), booster circuit (207), protection testing circuit (208) and power output circuit (209); Wherein, described second key circuit (203), described second clock circuit (204), described indicating circuit (205), described selection circuit (206), described booster circuit (207), described protection testing circuit (208) and described power output circuit (209) are all connected with described second master control IC chip (201);
Described second decoupling filter circuit (202) includes polar capacitor C21, described have the positive pole of polar capacitor C21 to be all connected with input power with the 4th pin of described second master control IC chip (201), described in have the minus earth of polar capacitor C21.
6. LED lamp with USB interface string control system according to claim 5, is characterized in that, described second key circuit (203) comprises key switch S21 and key switch S22; One end of described key switch S21 is connected with the second pin of described second master control IC chip (201), one end of described key switch S22 is connected with the three-prong of described second master control IC chip (201), and the negative pole of the other end of described key switch S21, the other end of described key switch S22 and described electric capacity C21 converges rear ground connection;
Described second clock circuit (204) comprises electric capacity C21, electric capacity C22 and oscillator X21,5th pin of described second master control IC chip (201) is connected with one end of described electric capacity C21 and one end of described oscillator X21 respectively, 6th pin of described second master control IC chip (201) is connected with one end of described electric capacity C22 and the other end of described oscillator X21 respectively, and the other end of described electric capacity C21 and the other end of described electric capacity C22 converge rear ground connection;
Described indicating circuit (205) comprises resistance R24 and optical diode LED21, one end of described resistance R24 is connected with the 8th pin of described second master control IC chip (201), the other end of described resistance R24 is connected with the positive pole of described optical diode LED21, the minus earth of described optical diode LED21;
Described selection circuit (206) comprises K switch 21, tenth pin of described second master control IC chip (201) is connected with one end of described K switch 21, and described 11 pin of the second master control IC chip (201) and the other end of described K switch 21 converge rear ground connection.
7. LED lamp with USB interface string control system according to claim 6, is characterized in that, described booster circuit (207) comprises inductance coil L21, resistance R21, NPN type triode Q21, diode D21 and has polar capacitor C24;
One end of described resistance R21 is connected with the first pin of described second master control IC chip (201), and the other end of described resistance R21 is connected with the base stage of described triode Q21, the collector electrode of described triode Q21 is connected with one end of described inductance coil L21 and the positive pole of described diode D21 respectively, 4th pin of the other end of described inductance coil L21 and the positive pole of described electric capacity C21 and described second master control IC chip (201) together accesses input power, the negative pole of described diode D21 has the positive pole of polar capacitor C24 to be connected with described respectively and accesses described protection testing circuit (208), the described lead-in wire having the negative pole of polar capacitor C24 to draw with the emitter of described triode Q21 respectively converges rear ground connection and accesses described protection testing circuit (208).
8. LED lamp with USB interface string control system according to claim 7, is characterized in that, described protection testing circuit (208) comprises resistance R25 and resistance R26;
One end of described resistance R25 is connected with the negative pole of described diode D21, the positive pole of described electric capacity C24 respectively and accesses described power output circuit (209), and the other end of described resistance R25 is connected with described 12 pin of the second master control IC chip (201) and one end of described resistance R26 respectively; The emitter of the other end of described resistance R26 and the negative pole of described electric capacity C24 and described triode Q21 converges rear ground connection.
9. LED lamp with USB interface string control system according to claim 8, it is characterized in that, described power output circuit (209) comprises resistance R22, resistance R23, resistance R27, resistance R28, NPN type triode Q22, NPN type triode Q23, PNP type triode Q24, PNP type triode Q25;
One end of described resistance R22 is connected with the tenth three-prong of described second master control IC chip (201), and the other end of described resistance R22 is connected with the base stage of described triode Q22; One end of described resistance R23 is connected with the 14 pin of described second master control IC chip (201), and the other end of described resistance R23 is connected with the base stage of described triode Q23; The emitter of described triode Q22 and the emitter of described triode Q23 converge rear ground connection; Be connected with the negative pole of one end of described resistance R25, the positive pole of described electric capacity C24 and described diode D21 after the emitter of described triode Q24 converges with the emitter of described triode Q25, the base stage of described triode Q24 is connected with one end of described R27, and the base stage of described triode Q25 is connected with one end of described R28; The other end of the collector electrode of described triode Q22, the collector electrode of described triode Q24 and described resistance R28 converges rear formation second terminals (211), and the other end of the collector electrode of described triode Q23, the collector electrode of described triode Q25 and described resistance R27 converges rear formation first terminals (210).
10. LED lamp with USB interface string control system according to claim 9, is characterized in that, described LED string uses the second lamp string circuit or the 3rd lamp string circuit, and described second lamp string circuit or described 3rd lamp string circuit are connected with described second control circuit;
Described second lamp string circuit comprises one or more LED parallel lamp group, each described LED parallel lamp group comprises the LED group of two groups of parallel connections, in the LED group of two groups of parallel connections, each LED group comprises the LED of multiple series connection, and in the LED group of two groups of parallel connections wherein the positive pole of one group of LED group is connected with negative pole of another group LED group after described first terminals (210) of access, the negative pole of described wherein one group of LED group is connected with another positive pole organizing LED group and accesses described second terminals (211) afterwards; If described second lamp string circuit comprises multiple LED parallel lamp group, be then parallel relationship between multiple LED parallel lamp group;
Described 3rd lamp string circuit comprises multiple LED strip connection lamp group, each described LED strip connection lamp group comprises the LED of multiple positive and negative interval parallel connection, be series relationship between multiple described LED strip connection lamp group, multiple described LED strip connection lamp group forms two terminals, described first terminals (210) of one of them terminals access, described second terminals (211) of another one terminals access.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053130.0A CN105491730B (en) | 2016-01-25 | 2016-01-25 | A kind of LED lamp with USB interface string control system |
| PCT/CN2016/073131 WO2017128449A1 (en) | 2016-01-25 | 2016-02-02 | Usb interface led lamp string control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053130.0A CN105491730B (en) | 2016-01-25 | 2016-01-25 | A kind of LED lamp with USB interface string control system |
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| Publication Number | Publication Date |
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| CN105491730A true CN105491730A (en) | 2016-04-13 |
| CN105491730B CN105491730B (en) | 2018-05-11 |
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| CN201610053130.0A Active CN105491730B (en) | 2016-01-25 | 2016-01-25 | A kind of LED lamp with USB interface string control system |
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| Country | Link |
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| CN (1) | CN105491730B (en) |
| WO (1) | WO2017128449A1 (en) |
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| CN109462912A (en) * | 2018-10-23 | 2019-03-12 | 程思明 | A kind of LED light string of USB power supply |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017128449A1 (en) | 2017-08-03 |
| CN105491730B (en) | 2018-05-11 |
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