CN203618187U - Boosted circuit of constant current boosted power source of LED energy-saving lamp - Google Patents

Boosted circuit of constant current boosted power source of LED energy-saving lamp Download PDF

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Publication number
CN203618187U
CN203618187U CN201320707597.4U CN201320707597U CN203618187U CN 203618187 U CN203618187 U CN 203618187U CN 201320707597 U CN201320707597 U CN 201320707597U CN 203618187 U CN203618187 U CN 203618187U
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CN
China
Prior art keywords
saving lamp
circuit
constant current
diode
semiconductor
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320707597.4U
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Chinese (zh)
Inventor
李宏斌
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Anqing Hong Hai Science And Technology Ltd
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Anqing Hong Hai Science And Technology Ltd
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Priority to CN201320707597.4U priority Critical patent/CN203618187U/en
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Publication of CN203618187U publication Critical patent/CN203618187U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses a boosted circuit of a constant current boosted power source of an LED energy-saving lamp. A sampling circuit is composed of an MOS transistor U1, an inductor L, a diode D and a capacitor C. The grid G of the MOS transistor U1 is connected with eight pins of an IC in the constant current boosted power circuit after being in series connection through a resistor R1, the source S of the MOS transistor U1 is connected to the ground, the drain D of the MOS transistor U1 is connected with one end of an inductor L1, and the other end of the inductor L1 is connected with a 12V direct-current power source. The positive electrode of a diode D1 is connected with the drain D of the MOS transistor U1, the negative electrode of the diode D1 is connected with an LED energy-saving lamp set, and the two ends of a capacitor C1 are connected between the positive electrode of the diode D1 and the ground. According to the technical scheme, circuit design is simple, output voltages are effectively increased, safety and reliability are achieved, output power is large, and the luminance requirement of the LED energy-saving lamp is guaranteed.

Description

A kind of booster circuit of LED electricity-saving lamp constant current booster power
Technical field
The utility model belongs to LED saving lamp power source control circuit, is specifically related to a kind of booster circuit of LED electricity-saving lamp constant current booster power.
Background technology
LED is the very competitive new type light source of one, compared with traditional incandescent lamp and fluorescent lamp, LED light fixture has the advantages such as low in energy consumption, brightness is high, volume is little, the life-span is long, just progressively replace existing incandescent lamp and fluorescent lamp, start to be widely used in full-colour display screen, traffic lights, automobile lamp, background light source, Special Work illumination etc., become lighting field new generation of green light source.But, because the power output of LED is directly proportional to voltage, for guaranteeing the brightness of LED electricity-saving lamp, just must boost, and in the power circuit of LED electricity-saving lamp, mostly its direct voltage not promoted at present, its power output is lower, a little less than brightness, be difficult to meet the demands.
Summary of the invention
The purpose of this utility model is to provide a kind of booster circuit of LED electricity-saving lamp constant current booster power, and this device circuit simplicity of design can effectively promote output voltage, and safe and reliable, power output is large, has guaranteed the brightness requirement of LED electricity-saving lamp.
For achieving the above object, the booster circuit of a kind of LED electricity-saving lamp of the utility model constant current booster power, is characterized in that: described booster circuit is made up of metal-oxide-semiconductor U1, inductance L, diode D and capacitor C; The grid G of metal-oxide-semiconductor U1 is connected with 8 pin of IC in constant current booster power supply circuit after resistance R 1 serial connection, the source S ground connection of metal-oxide-semiconductor U1, the drain D of metal-oxide-semiconductor U1 is connected with inductance L 1 one end respectively, the other end of inductance L 1 is connected with the DC power supply of 12V, the positive pole of diode D1 is connected with the drain D of metal-oxide-semiconductor U1, negative pole is connected with LED electricity-saving lamp group, and two ends of capacitor C 1 are connected between the positive pole and ground of diode D1.
In technique scheme, owing to having increased booster circuit in LED electricity-saving lamp constant current booster power supply circuit, in the time that in circuit, IC starts working, by the 8 pin output pwm signals of IC, in the time that pwm signal is high potential, metal-oxide-semiconductor U1 conducting, input voltage arrives ground after inductance L 1, metal-oxide-semiconductor U1; In the time that the 8 pin output pwm signals of IC in circuit are electronegative potential, metal-oxide-semiconductor U1 cut-off, because inductance L 1 two ends electric current can not suddenly change, so the electric current of inductance L 1 charges to electrochemical capacitor C1 by D1, C1 both end voltage raises, complete and boost, guaranteed the power output of LED electricity-saving lamp, met the brightness requirement of LED electricity-saving lamp, circuit design is simple, safe and reliable, can effectively promote output voltage.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the booster circuit of a kind of LED electricity-saving lamp of the utility model constant current booster power.
Embodiment
Below in conjunction with accompanying drawing, the booster circuit of a kind of LED electricity-saving lamp constant current booster power of the present utility model is described in further detail.
As seen from Figure 1, the booster circuit of a kind of LED electricity-saving lamp constant current booster power of the present embodiment is mounted in constant current booster power supply circuit between pwm control circuit and LED electricity-saving lamp group, object is to improve the power output of LED electricity-saving lamp, guarantees the brightness requirement of LED electricity-saving lamp.The booster circuit of a kind of LED electricity-saving lamp constant current booster power of embodiment is made up of metal-oxide-semiconductor U1, inductance L, diode D and capacitor C; The grid G of metal-oxide-semiconductor U1 is connected with 8 pin of IC in constant current booster power supply circuit after resistance R 1 serial connection, the source S ground connection of metal-oxide-semiconductor U1, the drain D of metal-oxide-semiconductor U1 is connected with inductance L 1 one end respectively, the other end of inductance L 1 is connected with the DC power supply of 12V, the positive pole of diode D1 is connected with the drain D of metal-oxide-semiconductor U1, negative pole is connected with LED electricity-saving lamp group, and two ends of capacitor C 1 are connected between the positive pole and ground of diode D1.
In the above-described embodiments, owing to having increased booster circuit in LED electricity-saving lamp constant current booster power supply circuit, in the time that in circuit, IC starts working, by the 8 pin output pwm signals of IC, in the time that pwm signal is high potential, metal-oxide-semiconductor U1 conducting, input voltage arrives ground after inductance L 1, metal-oxide-semiconductor U1; In the time that the 8 pin output pwm signals of IC in circuit are electronegative potential, metal-oxide-semiconductor U1 cut-off, because inductance L 1 two ends electric current can not suddenly change, so the electric current of inductance L 1 charges to electrochemical capacitor C1 by D1, C1 both end voltage raises, complete and boost, guaranteed the power output of LED electricity-saving lamp, met the brightness requirement of LED electricity-saving lamp, circuit design is simple, safe and reliable, can effectively promote output voltage.

Claims (1)

1. a booster circuit for LED electricity-saving lamp constant current booster power, is characterized in that: described booster circuit is made up of metal-oxide-semiconductor U1, inductance L, diode D and capacitor C; The grid G of metal-oxide-semiconductor U1 is connected with 8 pin of IC in constant current booster power supply circuit after resistance R 1 serial connection, the source S ground connection of metal-oxide-semiconductor U1, the drain D of metal-oxide-semiconductor U1 is connected with inductance L 1 one end respectively, the other end of inductance L 1 is connected with the DC power supply of 12V, the positive pole of diode D1 is connected with the drain D of metal-oxide-semiconductor U1, negative pole is connected with LED electricity-saving lamp group, and two ends of capacitor C 1 are connected between the positive pole and ground of diode D1.
CN201320707597.4U 2013-11-12 2013-11-12 Boosted circuit of constant current boosted power source of LED energy-saving lamp Expired - Fee Related CN203618187U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320707597.4U CN203618187U (en) 2013-11-12 2013-11-12 Boosted circuit of constant current boosted power source of LED energy-saving lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320707597.4U CN203618187U (en) 2013-11-12 2013-11-12 Boosted circuit of constant current boosted power source of LED energy-saving lamp

Publications (1)

Publication Number Publication Date
CN203618187U true CN203618187U (en) 2014-05-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320707597.4U Expired - Fee Related CN203618187U (en) 2013-11-12 2013-11-12 Boosted circuit of constant current boosted power source of LED energy-saving lamp

Country Status (1)

Country Link
CN (1) CN203618187U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103561520A (en) * 2013-11-12 2014-02-05 安庆市宏海科技有限公司 Boosted circuit of constant current boosted power source of LED energy-saving lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103561520A (en) * 2013-11-12 2014-02-05 安庆市宏海科技有限公司 Boosted circuit of constant current boosted power source of LED energy-saving lamp

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EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140528

Termination date: 20151112