CN203327310U - Deep freezer ball switch LED driving circuit of long-life anti-flashing light - Google Patents
Deep freezer ball switch LED driving circuit of long-life anti-flashing light Download PDFInfo
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- CN203327310U CN203327310U CN2013203209344U CN201320320934U CN203327310U CN 203327310 U CN203327310 U CN 203327310U CN 2013203209344 U CN2013203209344 U CN 2013203209344U CN 201320320934 U CN201320320934 U CN 201320320934U CN 203327310 U CN203327310 U CN 203327310U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a deep freezer ball switch LED driving circuit of a long-life anti-flashing light. The deep freezer ball switch LED driving circuit comprises resistors R1-R5, a bidirectional TVS diode d1, an X capacitor C1, a capacitor C2, rectifying diodes D1-D4, a ball switch K1, an MOS transistor Q1, light emitting diodes LED1-LED6, wherein the bias voltage of a grid electrode of the MOS transistor Q1 is subjected to switch control by the ball switch K1, and then a deep freezer ball switch LED lamp is subjected to switch control by conduction and cut-off of the MOS transistor Q1. The service life of the deep freezer ball switch LED lamp is very long, the average fault-free switch times are larger than 300000 times; at the same time, an RC time delay sampling holding circuit composed of by the resistor R5 between the grid electrode of the MOS transistor Q1 and the reference ground and the capacitor C2 is arranged to conquer the light flashing phenomenon of the LED lamp.
Description
Technical field
The utility model belongs to electronic circuit field, is the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life.
Background technology
The interior light of current new-type refrigerator-freezer has started to adopt advanced ball switch LED lamp.It is the advantage of high-efficient energy-saving environment friendly that ball switch LED light fixture has the advantage of LED illumination, utilize again ball switch to carry out switch control to the LED lamp simultaneously, when the door of refrigerator-freezer is closed, the LED lamp does not work, and the LED lamp is lighted luminous to the refrigerator-freezer interior lighting, easy to use when the door of refrigerator-freezer is lifted to certain inclination angle.But all there is short problem in useful life in the technology for existing refrigerator-freezer ball switch LED lamp, and the life-span of ball switch is generally less than several ten thousand times, and the on-off times of refrigerator-freezer interior light must be greater than more than 100,000 times.This is that ball switch is all directly connected with the LED lamp due in the technology at existing refrigerator-freezer ball switch LED lamp, and operating voltage is high, electric current is large, causes the life-span of ball switch short.The key problem in technology of the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life of the utility model is that thereby the bias voltage to the MOS transistor grid carries out switch control by the MOS transistor conducting and ends the switch of realizing refrigerator-freezer ball switch LED lamp and control with ball switch, the electric current that flows through like this ball switch is especially little, greatly improved the useful life of ball switch, its average fault-free on-off times is greater than 300,000 times.Also having another outstanding problem for the technology of existing refrigerator-freezer ball switch LED lamp is LED flashing light phenomenon, in the process of freezer open because the factors such as vibrations, shake can cause the ball switch misoperation, and the LED flashing light phenomenon produced.
Summary of the invention
The utility model provides the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life, makes the average fault-free on-off times of refrigerator-freezer ball switch LED lamp be greater than 300,000 times, and does not have the flashing light phenomenon.
The technical solution adopted in the utility model is:
The refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life, its circuit includes resistance R 1 ~ R5, two-way TVS diode d1, X capacitor C 1, capacitor C 2, rectifier diode D1 ~ D4, ball switch K1, MOS transistor Q1, Light-Emitting Diode LED1 ~ LED6, the connected mode of its circuit is as follows: an end of resistance R 1 is connected with civil power L line, the other end of resistance R 1 is connected and is connected with an end of resistance R 3 with the end of two-way TVS diode d1 and an end of X capacitor C 1, the other end of resistance R 3 is connected with the other end of X capacitor C 1 and is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4, one end of resistance R 2 is connected with civil power N line, the other end of resistance R 2 is connected and is connected with the negative pole of rectifier diode D3 and is connected with the positive pole of rectifier diode D2 with the other end of two-way TVS diode d1, the negative pole of rectifier diode D1 is connected with the negative pole of rectifier diode D2 and is connected with the positive pole of Light-Emitting Diode LED1 and is connected with an end of resistance R 4 simultaneously, the other end of resistance R 4 is connected with the end of ball switch K1, the grid of the other end of ball switch K1 and MOS transistor Q1, one end of resistance R 5, one end of capacitor C 2 is connected, the positive pole of rectifier diode D3 with the positive pole of rectifier diode D4, be connected as with reference to ground and with the source electrode of MOS transistor Q1, the other end of resistance R 5, the other end of capacitor C 2 is connected, the negative pole of Light-Emitting Diode LED1 is connected with the positive pole of Light-Emitting Diode LED2, the negative pole of Light-Emitting Diode LED2 is connected with the positive pole of Light-Emitting Diode LED3, the negative pole of Light-Emitting Diode LED3 is connected with the positive pole of Light-Emitting Diode LED4, the negative pole of Light-Emitting Diode LED4 is connected with the positive pole of Light-Emitting Diode LED5, the negative pole of Light-Emitting Diode LED5 is connected with the positive pole of Light-Emitting Diode LED6, the negative pole of Light-Emitting Diode LED6 is connected with the drain electrode of MOS transistor Q1, thereby described ball switch K1 carries out the conducting and cut-off realization switch control to refrigerator-freezer ball switch LED lamp of switch control by MOS transistor Q1 to the bias voltage of the grid of MOS transistor Q1.
The refrigerator-freezer ball switch LED drive circuit of anti-flashing light of described a kind of long-life is characterized in that: described MOS transistor Q1 also can replace with the Darlington bipolar transistor.
RC time delay sampling hold circuit resistance R 5 between reference ground and capacitor C 2 consisted of the grid of MOS transistor Q1 overcomes the flashing light phenomenon of LED lamp.
Good effect of the present utility model is:
The refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life of the present utility model, thereby adopt ball switch to carry out switch control by MOS transistor conducting and the switch control of cut-off realization to refrigerator-freezer ball switch LED lamp to the bias voltage of MOS transistor grid, its life-span is long especially, and average fault-free on-off times is greater than 300,000 times.
The refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life of the present utility model, the RC time delay sampling hold circuit be provided with between the grid of MOS transistor is to reference ground, overcome the LED flashing light phenomenon that the ball switch misoperation that causes due to factors such as vibrations shakes in the freezer open process produces.
The accompanying drawing explanation
The circuit diagram that Fig. 1 is embodiment 1 of the present utility model.
The circuit diagram that Fig. 2 is embodiment 2 of the present utility model.
The circuit diagram that Fig. 3 is embodiment 3 of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life, its circuit includes resistance R 1 ~ R5, two-way TVS diode d1, X capacitor C 1, capacitor C 2, rectifier diode D1 ~ D4, ball switch K1, MOS transistor Q1, Light-Emitting Diode LED1 ~ LED6, the connected mode of its circuit is as follows: an end of resistance R 1 is connected with civil power L line, the other end of resistance R 1 is connected and is connected with an end of resistance R 3 with the end of two-way TVS diode d1 and an end of X capacitor C 1, the other end of resistance R 3 is connected with the other end of X capacitor C 1 and is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4, one end of resistance R 2 is connected with civil power N line, the other end of resistance R 2 is connected and is connected with the negative pole of rectifier diode D3 and is connected with the positive pole of rectifier diode D2 with the other end of two-way TVS diode d1, the negative pole of rectifier diode D1 is connected with the negative pole of rectifier diode D2 and is connected with the positive pole of Light-Emitting Diode LED1 and is connected with an end of resistance R 4 simultaneously, the other end of resistance R 4 is connected with the end of ball switch K1, the grid of the other end of ball switch K1 and MOS transistor Q1, one end of resistance R 5, one end of capacitor C 2 is connected, the positive pole of rectifier diode D3 with the positive pole of rectifier diode D4, be connected as with reference to ground and with the source electrode of MOS transistor Q1, the other end of resistance R 5, the other end of capacitor C 2 is connected, the negative pole of Light-Emitting Diode LED1 is connected with the positive pole of Light-Emitting Diode LED2, the negative pole of Light-Emitting Diode LED2 is connected with the positive pole of Light-Emitting Diode LED3, the negative pole of Light-Emitting Diode LED3 is connected with the positive pole of Light-Emitting Diode LED4, the negative pole of Light-Emitting Diode LED4 is connected with the positive pole of Light-Emitting Diode LED5, the negative pole of Light-Emitting Diode LED5 is connected with the positive pole of Light-Emitting Diode LED6, the negative pole of Light-Emitting Diode LED6 is connected with the drain electrode of MOS transistor Q1.Wherein, the resistance that R1, R2 are 1K ohm power 1W, the resistance that R3 is 510K ohm power 0.25W, the resistance that R4 is 5.1M ohm power 0.25W, the resistance that R5 is 5.1M ohm power 0.25W, d1 is the TVS pipe, model is P6KE440CA, C1 is 0.22uF/X electric capacity, the electric capacity that C2 is 0.47uF, D1, D2, D3, D4 are rectifier diode, model is 1N4007, K1 is ball switch, model is W-2000LA, and Q1 is MOS transistor, and model is 1N60, LED1 ~ LED6 is light-emitting diode, rated operational current 20mA.
In the present embodiment, the L of electric main, N end can exchange, and the number of the LED of use can increase and decrease according to actual requirement, for example can become 8 LED or 4 LED by 6 LED.
Experimental result shows, use the refrigerator-freezer ball switch LED light fixture of the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life of the utility model that long especially advantage of life-span is arranged, its average fault-free on-off times is greater than 300,000 times, and there is not the flashing light phenomenon in this refrigerator-freezer ball switch LED lamp simultaneously.
As shown in Figure 2, the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life, its circuit includes resistance R 1 ~ R5, two-way TVS diode d1, X capacitor C 1, capacitor C 2, rectifier diode D1 ~ D4, ball switch K1, the Darlington bipolar transistor be comprised of bipolar transistor Q1 and Q2, Light-Emitting Diode LED1 ~ LED6, and the connected mode of its circuit is as follows:
One end of resistance R 1 is connected with civil power L line, the other end of resistance R 1 is connected and is connected with an end of resistance R 3 with the end of two-way TVS diode d1 and an end of X capacitor C 1, the other end of resistance R 3 is connected with the other end of X capacitor C 1 and is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4, one end of resistance R 2 is connected with civil power N line, the other end of resistance R 2 is connected and is connected with the negative pole of rectifier diode D3 and is connected with the positive pole of rectifier diode D2 with the other end of two-way TVS diode d1, the negative pole of rectifier diode D1 is connected with the negative pole of rectifier diode D2 and is connected with the positive pole of Light-Emitting Diode LED1 and is connected with an end of resistance R 4 simultaneously, the other end of resistance R 4 is connected with the end of ball switch K1, the base stage of the other end of ball switch K1 and bipolar transistor Q1, one end of resistance R 5, one end of capacitor C 2 is connected, the emitter of bipolar transistor Q1 is connected with the base stage of bipolar transistor Q2, the positive pole of the emitter of bipolar transistor Q2 and rectifier diode D3, the positive pole of rectifier diode D4, the other end of resistance R 5, the other end of capacitor C 2 is connected as reference ground, the negative pole of Light-Emitting Diode LED1 is connected with the positive pole of Light-Emitting Diode LED2, the negative pole of Light-Emitting Diode LED2 is connected with the positive pole of Light-Emitting Diode LED3, the negative pole of Light-Emitting Diode LED3 is connected with the positive pole of Light-Emitting Diode LED4, the negative pole of Light-Emitting Diode LED4 is connected with the positive pole of Light-Emitting Diode LED5, the negative pole of Light-Emitting Diode LED5 is connected with the positive pole of Light-Emitting Diode LED6, the collector electrode of the negative pole of Light-Emitting Diode LED6 and bipolar transistor Q1, the collector electrode of bipolar transistor Q2 is connected.Wherein, the resistance that R1, R2 are 1K ohm power 1W, the resistance that R3 is 510K ohm power 0.25W, the resistance that R4 is 5.1M ohm power 0.25W, the resistance that R5 is 5.1M ohm power 0.25W, d1 is the TVS pipe, and model is P6KE440CA, and C1 is 0.22uF/X electric capacity, the electric capacity that C2 is 0.47uF, D1, D2, D3, D4 are rectifier diode, and model is 1N4007, and K1 is ball switch, model is W-2000LA, the model of bipolar transistor Q1 and Q2 is that 13001, LED1 ~ LED6 is light-emitting diode, rated operational current 20mA.
In the present embodiment, the L of electric main, N end can exchange, and the number of the LED of use can increase and decrease according to actual requirement, for example can become 8 LED or 4 LED by 6 LED.
Experimental result shows, use the refrigerator-freezer ball switch LED light fixture of the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life of the utility model that long especially advantage of life-span is arranged, its average fault-free on-off times is greater than 300,000 times, and there is not the flashing light phenomenon in this refrigerator-freezer ball switch LED lamp simultaneously.
As shown in Figure 3, the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life, its circuit includes resistance R 1 ~ R5, two-way TVS diode d1, X capacitor C 1, capacitor C 2, rectifier diode D1 ~ D4, ball switch K1, MOS transistor Q1, Light-Emitting Diode LED1 ~ LED6, the connected mode of its circuit is as follows: an end of resistance R 1 is connected with civil power L line, the other end of resistance R 1 is connected with an end of X capacitor C 1 and is connected with an end of resistance R 3, the other end of resistance R 3 is connected with the other end of X capacitor C 1 and is connected with the end of two-way TVS diode d1 and is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4 simultaneously, one end of resistance R 2 is connected with civil power N line, the other end of resistance R 2 is connected and is connected with the negative pole of rectifier diode D3 and is connected with the positive pole of rectifier diode D2 with the other end of two-way TVS diode d1, the negative pole of rectifier diode D1 is connected with the negative pole of rectifier diode D2 and is connected with the positive pole of Light-Emitting Diode LED1 and is connected with an end of resistance R 4 simultaneously, the other end of resistance R 4 is connected with the end of ball switch K1, the grid of the other end of ball switch K1 and MOS transistor Q1, one end of resistance R 5, one end of capacitor C 2 is connected, the positive pole of rectifier diode D3 with the positive pole of rectifier diode D4, be connected as with reference to ground and with the source electrode of MOS transistor Q1, the other end of resistance R 5, the other end of capacitor C 2 is connected, the negative pole of Light-Emitting Diode LED1 is connected with the positive pole of Light-Emitting Diode LED2, the negative pole of Light-Emitting Diode LED2 is connected with the positive pole of Light-Emitting Diode LED3, the negative pole of Light-Emitting Diode LED3 is connected with the positive pole of Light-Emitting Diode LED4, the negative pole of Light-Emitting Diode LED4 is connected with the positive pole of Light-Emitting Diode LED5, the negative pole of Light-Emitting Diode LED5 is connected with the positive pole of Light-Emitting Diode LED6, the negative pole of Light-Emitting Diode LED6 is connected with the drain electrode of MOS transistor Q1.Wherein, the resistance that R1, R2 are 1K ohm power 1W, the resistance that R3 is 510K ohm power 0.25W, the resistance that R4 is 5.1M ohm power 0.25W, the resistance that R5 is 5.1M ohm power 0.25W, d1 is the TVS pipe, model is P6KE440CA, C1 is 0.22uF/X electric capacity, the electric capacity that C2 is 0.47uF, D1, D2, D3, D4 are rectifier diode, model is 1N4007, K1 is ball switch, model is W-2000LA, and Q1 is MOS transistor, and model is 1N60, LED1 ~ LED6 is light-emitting diode, rated operational current 20mA.
In the present embodiment, the L of electric main, N end can exchange, and the number of the LED of use can increase and decrease according to actual requirement, for example can become 8 LED or 4 LED by 6 LED.
Experimental result shows, use the refrigerator-freezer ball switch LED light fixture of the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of a kind of long-life of the utility model that long especially advantage of life-span is arranged, its average fault-free on-off times is greater than 300,000 times, and there is not the flashing light phenomenon in this refrigerator-freezer ball switch LED lamp simultaneously.
Claims (3)
1. the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of long-life, it is characterized in that: include resistance R 1 ~ R5, two-way TVS diode d1, X capacitor C 1, capacitor C 2, rectifier diode D1 ~ D4, ball switch K1, MOS transistor Q1, Light-Emitting Diode LED1 ~ LED6, the connected mode of its circuit is as follows: an end of resistance R 1 is connected with civil power L line, the other end of resistance R 1 is connected and is connected with an end of resistance R 3 with the end of two-way TVS diode d1 and an end of X capacitor C 1, the other end of resistance R 3 is connected with the other end of X capacitor C 1 and is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4, one end of resistance R 2 is connected with civil power N line, the other end of resistance R 2 is connected and is connected with the negative pole of rectifier diode D3 and is connected with the positive pole of rectifier diode D2 with the other end of two-way TVS diode d1, the negative pole of rectifier diode D1 is connected with the negative pole of rectifier diode D2 and is connected with the positive pole of Light-Emitting Diode LED1 and is connected with an end of resistance R 4 simultaneously, the other end of resistance R 4 is connected with the end of ball switch K1, the grid of the other end of ball switch K1 and MOS transistor Q1, one end of resistance R 5, one end of capacitor C 2 is connected, the positive pole of rectifier diode D3 with the positive pole of rectifier diode D4, be connected as with reference to ground and with the source electrode of MOS transistor Q1, the other end of resistance R 5, the other end of capacitor C 2 is connected, the negative pole of Light-Emitting Diode LED1 is connected with the positive pole of Light-Emitting Diode LED2, the negative pole of Light-Emitting Diode LED2 is connected with the positive pole of Light-Emitting Diode LED3, the negative pole of Light-Emitting Diode LED3 is connected with the positive pole of Light-Emitting Diode LED4, the negative pole of Light-Emitting Diode LED4 is connected with the positive pole of Light-Emitting Diode LED5, the negative pole of Light-Emitting Diode LED5 is connected with the positive pole of Light-Emitting Diode LED6, the negative pole of Light-Emitting Diode LED6 is connected with the drain electrode of MOS transistor Q1, thereby described ball switch K1 carries out the conducting and cut-off realization switch control to refrigerator-freezer ball switch LED lamp of switch control by MOS transistor Q1 to the bias voltage of the grid of MOS transistor Q1.
2. the refrigerator-freezer ball switch LED drive circuit of anti-flashing light of described a kind of long-life of claims 1 is further characterized in that: the circuit resistance R 5 between reference ground and capacitor C 2 consisted of the grid of MOS transistor Q1 is RC time delay sampling hold circuit.
3. described a kind of long-life of claims 1 is prevented the refrigerator-freezer ball switch LED drive circuit of flashing light, is further characterized in that: described MOS transistor Q1 also can replace with the Darlington bipolar transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203209344U CN203327310U (en) | 2013-06-04 | 2013-06-04 | Deep freezer ball switch LED driving circuit of long-life anti-flashing light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203209344U CN203327310U (en) | 2013-06-04 | 2013-06-04 | Deep freezer ball switch LED driving circuit of long-life anti-flashing light |
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| CN203327310U true CN203327310U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203209344U Expired - Fee Related CN203327310U (en) | 2013-06-04 | 2013-06-04 | Deep freezer ball switch LED driving circuit of long-life anti-flashing light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103596335A (en) * | 2013-11-18 | 2014-02-19 | 合肥美的电冰箱有限公司 | Refrigeration equipment and control device used for door lamp of refrigeration equipment |
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2013
- 2013-06-04 CN CN2013203209344U patent/CN203327310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103596335A (en) * | 2013-11-18 | 2014-02-19 | 合肥美的电冰箱有限公司 | Refrigeration equipment and control device used for door lamp of refrigeration equipment |
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| 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: 20131204 Termination date: 20160604 |