CN201718083U - Driving circuit for LED illuminating lamp of refrigerator - Google Patents
Driving circuit for LED illuminating lamp of refrigerator Download PDFInfo
- Publication number
- CN201718083U CN201718083U CN2010201922831U CN201020192283U CN201718083U CN 201718083 U CN201718083 U CN 201718083U CN 2010201922831 U CN2010201922831 U CN 2010201922831U CN 201020192283 U CN201020192283 U CN 201020192283U CN 201718083 U CN201718083 U CN 201718083U
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- circuit
- resistance
- refrigerator
- illuminating lamp
- led illuminating
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- Expired - Fee Related
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a driving circuit for an LED illuminating lamp of a refrigerator, which mainly comprises a resistance-capacitance buck circuit and a bridge type rectifier circuit, the input end of the resistance-capacitance buck circuit is connected with 220V commercial power, the output end is connected with one input end of the bridge type rectifier circuit, the other input end of the bridge type rectifier circuit is connected with the 220V commercial power, and two output ends are connected with the circuit for the LED lamp of the refrigerator. The adoption of the LED lamp as an illuminating source can reduce the power consumption, improve the illumination efficiency and lead the service life to be long; and the combination with the driving circuit can save a transformation power supply, lead the circuit to be simple and have low cost.
Description
Technical field
The utility model relates to a kind of drive circuit of refrigerator illuminating lamp, and is particularly a kind of with the drive circuit of LED as the refrigerator illuminating lamp.
Background technology
Refrigerator illuminating lamp in the past adopts the light source of incandescent lamp as refrigerator inside usually, perhaps adopts through the light source of the low voltage drive low-voltage LED lamp after the transformation as refrigerator inside.
Adopting incandescent lamp is that the incandescent lamp power consumption is big, light efficiency is low and useful life short as the shortcoming of refrigerator inside light source; Is that transformation drives low-voltage LED circuit for lamp complexity, cost height and adopt through the low voltage drive low-voltage LED lamp after the transformation as the shortcoming of the light source of refrigerator inside.
The utility model content
The utility model is intended to overcome the described refrigerator light source of background technology power consumption height, light efficiency is low, useful life is short or circuit is complicated, cost is high shortcoming.
In order to overcome the problems referred to above, the utility model has designed a kind of drive circuit of refrigerator LED illuminating lamp, mainly adopts the resistance-capacitance depressurization principle, civil power is become low-voltage DC drove the low-voltage LED lamp afterwards.The input of this drive circuit is the civil power of 220V; Circuit inside mainly is made of resistance-capacitance depressurization circuit and bridge rectifier, and the resistance-capacitance depressurization circuit input end links to each other with the civil power of 220V, and output links to each other with an input of bridge rectifier; And the civil power of another input of bridge rectifier and 220V links to each other, and two outputs link to each other with refrigerator LED lamp power circuit.Wherein the resistance-capacitance depressurization circuit by 1 electric capacity and 1 resistance parallel connection after, resistance of its front end series connection constitutes; Bridge rectifier is made of 4 rectifier diodes.
By above-mentioned improvement, its beneficial effect is: adopt the LED lamp as light source, can reduce power consumption, improve light efficiency and long service life, and, can save variable-voltage power supply in conjunction with drive circuit of the present utility model, and simple in circuits, cost is low.
Description of drawings
Fig. 1 is the structure diagram of the drive circuit of refrigerator LED illuminating lamp.
Wherein the symbol description of Fig. 1 is as follows: 1---220V civil power 2---resistance-capacitance depressurization circuit 21---resistance 122---resistance 223---electric capacity 3---bridge rectifier 31---rectifier diode 132---rectifier diode 233---rectifier diode 334---rectifier diode 44---refrigerator LED lamp power circuit.
Embodiment
As shown in Figure 1, the input of this drive circuit is a 220V civil power 1; Circuit inside mainly is made of resistance-capacitance depressurization circuit 2 and bridge rectifier 3, and resistance-capacitance depressurization circuit 2 inputs link to each other with 220V civil power 1, and output links to each other with an input of bridge rectifier 3; And another input of bridge rectifier 3 links to each other with 220V civil power 1, and two outputs link to each other with refrigerator LED lamp power circuit 4.Wherein resistance-capacitance depressurization circuit 2 by 1 electric capacity 23 and 1 resistance 22 parallel connection after, resistance of its front end series connection 21 constitutes; Bridge rectifier 3 is made of 4 rectifier diodes 31,32,33,34.
Claims (3)
1. the drive circuit of a refrigerator LED illuminating lamp, it is characterized in that constituting by resistance-capacitance depressurization circuit (2) and bridge rectifier (3), resistance-capacitance depressurization circuit (2) input links to each other with 220V civil power (1), output links to each other with an input of bridge rectifier (3), and another input of bridge rectifier (3) links to each other with 220V civil power (1), and two outputs link to each other with refrigerator LED lamp power circuit (4).
2. the drive circuit of refrigerator LED illuminating lamp as claimed in claim 1, it is characterized in that resistance-capacitance depressurization circuit (2) is by 1 electric capacity (23) and 1 resistance (22) parallel connection after, its front end resistance of series connection (21) constitutes.
3. the drive circuit of refrigerator LED illuminating lamp as claimed in claim 1 or 2 is characterized in that bridge rectifier (3) is made of 4 rectifier diodes (31,32,33,34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201922831U CN201718083U (en) | 2010-05-17 | 2010-05-17 | Driving circuit for LED illuminating lamp of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201922831U CN201718083U (en) | 2010-05-17 | 2010-05-17 | Driving circuit for LED illuminating lamp of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201718083U true CN201718083U (en) | 2011-01-19 |
Family
ID=43464091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201922831U Expired - Fee Related CN201718083U (en) | 2010-05-17 | 2010-05-17 | Driving circuit for LED illuminating lamp of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201718083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2481965R1 (en) * | 2013-01-04 | 2014-09-17 | Cero Cero Rotulos S.L. | High energy efficiency circuit for connection of high brightness LEDs |
-
2010
- 2010-05-17 CN CN2010201922831U patent/CN201718083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2481965R1 (en) * | 2013-01-04 | 2014-09-17 | Cero Cero Rotulos S.L. | High energy efficiency circuit for connection of high brightness LEDs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20190517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |