CN211580237U

CN211580237U - High-power LED driving power supply

Info

Publication number: CN211580237U
Application number: CN201922268530.5U
Authority: CN
Inventors: 江孝伟; 方晓敏; 江月新
Original assignee: Quzhou College of Technology
Current assignee: Quzhou College of Technology
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-25
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a high-power LED driving power supply, which comprises a battery, a first capacitor to a fourth capacitor, a first resistor, a second resistor, a first triode, a second triode, an inductor, a switch and a light-emitting diode, wherein the battery provides power for a circuit after being filtered by the first capacitor, the first triode is triggered to be conducted, the input current is 1-1.3A after being limited by the first resistor, the power is amplified through the second triode and the inductor, and then the power is input to the fourth capacitor through the first diode and the second diode which are connected in parallel for final filtering, and finally the power is loaded on the light-emitting diode, the whole circuit can improve the utilization rate of the output current, the energy efficiency of the high-power LED light-emitting diode is improved, compared with the prior art, the utility model discloses amplifies the low-voltage power supply for driving the 3W high-power LED light-emitting diode, the power supply can be saved, moreover, the light emitting diode can better exert the brightness thereof, and has popularization and application values.

Description

High-power LED driving power supply

Technical Field

The utility model relates to an electricity technical field especially relates to a high-power led drive power supply.

Background

Light emitting diodes are referred to as LEDs for short. Is made of a compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), etc. When electrons and holes are recombined, visible light is radiated, so that the light-emitting diode can be manufactured. In circuits and instruments as indicator lights or to form text or numerical displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Organic light emitting diodes OLED and inorganic light emitting diodes LED are classified by their chemical properties.

In the prior art, most of LEDs are low in power consumption, but for high-power LEDs for illumination, the energy efficiency utilization rate is low, the energy consumption is high, and the luminous efficiency of LED lamp beads cannot be fully exerted, so that a driving power supply for the high-power LEDs is needed.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high power led driving power supply to solve the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model discloses a battery, first electric capacity to fourth electric capacity, first resistance, the second resistance, first triode, the second triode, an inductor, switch and emitting diode, the positive pole of battery simultaneously with the first end of first electric capacity, the projecting pole of first triode and the first end of inductance are connected, the negative pole of battery simultaneously with the second end of first electric capacity, the first end of second electric capacity, the first end of switch, the projecting pole of second triode, the first end of fourth electric capacity and emitting diode's negative pole are connected, the collecting electrode of first triode is connected with the first end of second resistance, the base of first triode simultaneously with the first end of first resistance and the first end of third electric capacity be connected, the second end of first resistance simultaneously with the second end of second electric capacity and the second end of switch are connected, the second end of second resistance is connected with the base of second triode, the collecting electrode of second triode simultaneously with the second end of inductance, the second triode, The anode of the first diode, the second end of the third capacitor and the anode of the second diode are connected, and the cathode of the first diode is simultaneously connected with the cathode of the second diode, the second end of the fourth capacitor and the anode of the light-emitting diode.

Specifically, the inductor is an I-shaped magnetic core with the diameter of 9mm and the height of 12mm, and is formed by horizontally winding 21 turns of 0.5mm enameled wire by two layers.

The beneficial effects of the utility model reside in that:

the utility model relates to a high-power LED drive power supply, compared with the prior art, the utility model discloses enlarge the power of low pressure for drive the powerful LED emitting diode of 3W, not only can save the power, can make its luminance of performance that emitting diode can be better moreover, have the value of popularization and application.

Drawings

Fig. 1 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1: the utility model comprises a battery DC, a first capacitor C1 to a fourth capacitor C2, a first resistor R1, a second resistor R2, a first triode VT1, a second triode VT2, an inductance L, a switch K and a light emitting diode LED, wherein the positive pole of the battery DC is simultaneously connected with the first end of the first capacitor C1, the emitting pole of the first triode VT1 and the first end of the inductance L, the negative pole of the battery DC is simultaneously connected with the second end of the first capacitor C1, the first end of the second capacitor C2, the first end of the switch K, the emitting pole of the second triode VT2, the first end of the fourth capacitor C4 and the negative pole of the light emitting diode LED, the collecting pole of the first triode VT1 is connected with the first end of the second resistor R2, the base of the first triode VT1 is simultaneously connected with the first end of the first resistor R1 and the first end of the third capacitor C3, the second end of the first resistor R1 is simultaneously connected with the second end of the second capacitor C2 and the second end of the switch K2, a second end of the second resistor R2 is connected to a base of the second transistor VT2, a collector of the second transistor VT2 is connected to a second end of the inductor L, an anode of the first diode D1, a second end of the third capacitor C3 and an anode of the second diode D2, and a cathode of the first diode D1 is connected to a cathode of the second diode D2, a second end of the fourth capacitor C4 and an anode of the light emitting diode LED.

Specifically, the inductor L is an I-shaped magnetic core with the diameter of 9mm and the height of 12mm, and is formed by horizontally winding 21 turns of enameled wires with the diameter of 0.5mm for two layers.

The working principle of the utility model is as follows:

the battery DC can be replaced by a direct current power supply, the battery DC is filtered by a first capacitor C1 to provide power for the circuit, a switch K is pressed, a first triode VT1 is triggered and conducted, after the current is limited by a first resistor R1, the input current is 1-1.3A according to the parameters of electronic components in the figure 1, the power is amplified through a second triode VT2 and an inductor L, the amplified power is input to a fourth capacitor C4 through a first diode D1 and a second diode D2 which are connected in parallel to carry out final filtering, and finally the filtered power is loaded on a light-emitting diode LED.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high-power LED driving power supply is characterized in that: the LED lamp comprises a battery, a first capacitor, a second capacitor, a fourth capacitor, a first resistor, a second resistor, a first triode, a second triode, an inductor, a first diode, a second diode, a switch and a light emitting diode, wherein the battery is 3V, the first capacitor and the second capacitor are both 104uF, the third capacitor is 473uF, the fourth capacitor is 470uF, the first resistor is 0.2k omega, the second resistor is 10k omega, the model of the first triode is 8850, the model of the second triode is D882, the inductor is 10H, the models of the first diode and the second diode are IN5819, and the light emitting diode is 3W; the positive electrode of the battery is simultaneously connected with the first end of the first capacitor, the emitting electrode of the first triode and the first end of the inductor, the negative electrode of the battery is simultaneously connected with the second end of the first capacitor, the first end of the second capacitor, the first end of the switch, the emitting electrode of the second triode, the first end of the fourth capacitor and the negative electrode of the light emitting diode, the collecting electrode of the first triode is connected with the first end of the second resistor, the base electrode of the first triode is simultaneously connected with the first end of the first resistor and the first end of the third capacitor, the second end of the first resistor is simultaneously connected with the second end of the second capacitor and the second end of the switch, the second end of the second resistor is connected with the base electrode of the second triode, the collecting electrode of the second triode is simultaneously connected with the second end of the inductor, the positive electrode of the first diode, the second end of the third capacitor and the positive electrode of the second diode, the negative electrode of the first diode is simultaneously connected with the negative electrode of, And the second end of the fourth capacitor is connected with the anode of the light-emitting diode.

2. The high power led driving power supply according to claim 1, wherein: the inductor is an I-shaped magnetic core with the diameter of 9mm and the height of 12mm, and is formed by horizontally winding 21 turns of 0.5mm enameled wires by two layers.