CN112135392A - Long-life driving power supply - Google Patents
Long-life driving power supply Download PDFInfo
- Publication number
- CN112135392A CN112135392A CN201911145790.1A CN201911145790A CN112135392A CN 112135392 A CN112135392 A CN 112135392A CN 201911145790 A CN201911145790 A CN 201911145790A CN 112135392 A CN112135392 A CN 112135392A
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- power supply
- driving power
- circuit
- resistance
- led lamp
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A long-life driving power supply includes, inside the driving power supply: the LED lamp comprises a control chip, a standby high-resistance power supply and a common circuit, wherein the control chip is provided with a plurality of end pins and is respectively connected with the standby high-resistance circuit and the common circuit through two end pins; the driving power supply is also internally provided with a thermosensitive switch, the thermosensitive switch is arranged close to the heating resistor and is connected with one end pin of the control chip, so that the common circuit is effectively prevented from heating beyond a specified heating point, the temperature of the common circuit can be ensured within a bearable range, the heating temperature is prevented from being overhigh, and meanwhile, the standby high-resistance circuit is a standby circuit, so the service life of the standby high-resistance circuit is also ensured; therefore, the LED driving power supply has longer service life while ensuring the power supply efficiency.
Description
Technical Field
The invention relates to the field of driving power supplies, in particular to a driving power supply with long service life.
Background
The LED driving power supply is a power converter for converting a power supply into a specific voltage and current to drive the LED to emit light, and generally, the input of the LED driving power supply includes a high-voltage power-frequency alternating current (i.e., commercial power), a low-voltage direct current, a high-voltage direct current, a low-voltage high-frequency alternating current (e.g., output of an electronic transformer), and the like.
Current LED drive power supply is when converting unstable electric current into stable electric current, can produce high temperature, and resistance among the LED drive power supply is fixed, when commercial power supply's electric current produced the electric current that surpasss LED drive power supply and can bear because of various reasons, LED drive power supply internal circuit can be lastingly generates heat, long-time high temperature generates heat and can make the current structure in the LED drive power supply burn out, make LED drive power supply burn out, in order to avoid the emergence of this kind of condition, can use the great LED drive power supply of resistance, the drive power supply of great resistance can intercept the electric current of process at that time, make the electric current electric quantity after LED drive power supply gets into the LED lamp plate insufficient, make the LED lamp plate can not exert maximum power.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
A long-life driving power supply comprising: the LED lamp panel comprises a driving power supply, a commercial power supply for providing power for the driving power supply and an LED lamp panel connected with the driving power supply;
the driving power supply includes: the LED lamp comprises a control chip, a standby high-resistance power supply and a common circuit, wherein the control chip is provided with a plurality of end pins and is respectively connected with the standby high-resistance circuit and the common circuit through two end pins;
the driving power supply is also internally provided with a thermosensitive switch, the thermosensitive switch is arranged close to the heating resistor, and the thermosensitive switch is connected with one end pin of the control chip.
As a further scheme of the invention: the common circuit is connected with the end pin of the LED lamp panel and is also connected with a grounded capacitor.
As a further scheme of the invention: the terminal pin that reserve high resistance power and LED lamp plate are connected still is connected with the electric capacity of ground connection.
Compared with the prior art, the invention has the beneficial effects that: through the structure of the double-current circuit, the LED driving power supply can effectively cope with sudden or continuous high current when in use, and meanwhile, the LED driving power supply can not intercept current due to overlarge resistance when the current of a daily mains supply is normal, so that the power supply of an LED lamp is insufficient;
therefore, the common circuit can be effectively prevented from heating beyond a specified heating point, the temperature of the common circuit can be ensured within a bearable range, the heating temperature is prevented from being too high, meanwhile, the standby high-resistance circuit is a standby circuit and cannot be used for a long time, and the service life of the standby high-resistance circuit is also guaranteed;
therefore, the LED driving power supply has longer service life while ensuring the power supply efficiency.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the present invention.
In the figure: 1. commercial power supply, 2, driving power supply, 3, LED lamp panels, 21, control chips, 22, standby high-resistance circuits, 23, capacitors, 24, thermal switches, 25, heating resistors, 26 and common circuits.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a long-life driving power supply includes: the LED lamp comprises a driving power supply 2, a mains supply 1 for providing power for the driving power supply 2 and an LED lamp panel 3 connected with the driving power supply 2;
the driving power supply 2 includes therein: the LED lamp comprises a control chip 21, a standby high-resistance power supply and a common circuit 26, wherein the control chip 21 is provided with a plurality of terminal pins, the control chip 21 is respectively connected with the standby high-resistance circuit 22 and the common circuit 26 through two terminal pins, the other end of the common circuit 26 is also connected with a heating resistor 25, the heating resistor 25 is connected with an LED lamp panel 3, and the other end of the standby high-resistance circuit 22 is connected with the LED lamp panel 3;
the backup high-resistance circuit 22 has a high resistance value and thus has good heat resistance.
The driving power supply 2 is also internally provided with a thermal switch 24, the thermal switch 24 is arranged close to the heating resistor 25, and the thermal switch 24 is connected with one end pin of the control chip 21.
The terminal pin that common circuit 26 and LED lamp plate 3 are connected still is connected with grounded electric capacity 23, the terminal pin that reserve high resistance power and LED lamp plate 3 are connected still is connected with grounded electric capacity 23, and electric capacity 23 of two earthings can ensure that the condition of stopping the power supply in the twinkling of an eye can not take place when reserve high resistance power switches with common circuit 26 at the electric current, ensures the stability of electric current when jumping.
The working principle of the invention is as follows: in the circuit of the LED lamp panel 3, the commercial power supply 1 enters the control chip 21, the current of the commercial power supply 1 enters the common circuit 26 through the control chip 21 and enters the LED lamp panel 3 through the heating resistor 25 to supply power to the LED lamp panel 3, when the current of the commercial power supply 1 fluctuates and the current is too large, the large current passes through the heating resistor 25 to cause the heating resistor 25 to generate heat, the heat emitted by the heating resistor 25 is transferred to the thermal switch 24 closely attached to the heating resistor 25, when the temperature reaches the zero limit point, the thermal switch 24 is activated, transmitting a signal to the control chip 21, so that the current of the mains supply 1 is conducted into the standby high-impedance circuit 22 via the control chip 21, the high resistance value of the standby high-resistance circuit 22 can prevent excessive current from entering the LED lamp panel 3, and meanwhile, the standby high-resistance circuit 22 has better heat resistance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. A long-life driving power supply comprising: the LED lamp panel is characterized by also comprising an LED lamp panel connected with the driving power supply;
the driving power supply includes: the LED lamp comprises a control chip, a standby high-resistance power supply and a common circuit, wherein the control chip is provided with a plurality of end pins and is respectively connected with the standby high-resistance circuit and the common circuit through two end pins;
the driving power supply is also internally provided with a thermosensitive switch, the thermosensitive switch is arranged close to the heating resistor, and the thermosensitive switch is connected with one end pin of the control chip.
2. The long-life driving power supply of claim 1, wherein the terminal pin of the common circuit connected with the LED lamp panel is further connected with a grounded capacitor.
3. The long-life driving power supply according to claim 1, wherein a terminal pin of the standby high-resistance power supply connected with the LED lamp panel is further connected with a grounded capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911145790.1A CN112135392A (en) | 2019-11-21 | 2019-11-21 | Long-life driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911145790.1A CN112135392A (en) | 2019-11-21 | 2019-11-21 | Long-life driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112135392A true CN112135392A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911145790.1A Pending CN112135392A (en) | 2019-11-21 | 2019-11-21 | Long-life driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112135392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996192A (en) * | 2021-02-24 | 2021-06-18 | 上海穆萨电子科技有限公司 | LED drive circuit |
-
2019
- 2019-11-21 CN CN201911145790.1A patent/CN112135392A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996192A (en) * | 2021-02-24 | 2021-06-18 | 上海穆萨电子科技有限公司 | LED drive circuit |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201225 |
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| WD01 | Invention patent application deemed withdrawn after publication |