CN202353861U - Multifunctional table lamp - Google Patents
Multifunctional table lamp Download PDFInfo
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- CN202353861U CN202353861U CN2011204228818U CN201120422881U CN202353861U CN 202353861 U CN202353861 U CN 202353861U CN 2011204228818 U CN2011204228818 U CN 2011204228818U CN 201120422881 U CN201120422881 U CN 201120422881U CN 202353861 U CN202353861 U CN 202353861U
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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 relates to a table lamp, in particular to a multifunctional table lamp, which comprises a power circuit, a light regulation and stabilizing circuit, a thermal starting circuit and a delay light-out circuit, wherein the output end of the power circuit is respectively connected to the input ends of the light regulation and stabilizing circuit, the thermal starting circuit and the delay light-out circuit; the output ends of the light regulation and stabilizing circuit and the thermal starting circuit are commonly connected to a first output end of a rectification circuit in the power circuit; and the output end of the delay light-out circuit is connected to the thermal starting circuit. The multifunctional table lamp disclosed by the utility model is provided with the light regulation and stabilizing circuit, the thermal starting circuit and the delay light-out circuit on the basis of the existing table lamp; the circuit is simple and extremely easy to be realized; meanwhile a user can use the table lamp more safe; more attention is paid to protect eyes of users; and various requirements of users are fulfilled.
Description
Technical field
The utility model relates to a kind of desk lamp, is specifically related to a kind of multi-function desk lamp.
Background technology
At present, desk lamp has entered into daily life and has been widely used, and undeniable desk lamp is that people's work, study bring great convenience; But along with the progress of society, people also have higher requirement to desk lamp, and desk lamp not only will have the effect of illumination; More will be in the study that is convenient for people to live protection user's eyes; And require desk lamp safer in use, more convenient, and existing desk lamp function singleness can not satisfy these requirements of people simultaneously.
The utility model content
The purpose of the utility model provides a kind of multi-function desk lamp that function is extinguished in light modulation, voltage stabilizing, warm start and time-delay that possesses.
For achieving the above object, the utility model adopts following technical scheme:
A kind of multi-function desk lamp; Comprise power circuit; Said power circuit comprises rectification circuit, and the input of rectification circuit is used to connect AC power, and the positive-negative output end of rectification circuit connects the two ends of desk lamp bulb; Said multi-function desk lamp also comprises the steady optical circuit of light modulation, warm start circuit and delay extinction circuit; The output of said power circuit connects the input of the steady optical circuit of light modulation, the input of warm start circuit and the input of delay extinction circuit respectively, and the output of the steady optical circuit of said light modulation, the output of warm start circuit connect the cathode output end of rectification circuit in the power circuit jointly, and the output of said delay extinction circuit connects the warm start circuit.
Said power circuit also comprises voltage stabilizing circuit and isolation filter circuit, and the cathode output end of said rectification circuit connects the input of voltage stabilizing circuit, and the output of voltage stabilizing circuit connects the input of isolation filter circuit.
Said rectification circuit comprises the rectifier bridge that first diode, second diode, the 3rd diode and the 4th diode are formed; Said voltage stabilizing circuit comprises first resistor and first voltage stabilizing didoe; The negative electrode of said first voltage stabilizing didoe connects an end of first resistor; The other end of first resistor connects the negative electrode of second diode, and the anode of first voltage stabilizing didoe connects the anode of first diode; Said isolation filter circuit comprises the 5th diode, first capacitor and the 4th resistor; The anode of said the 5th diode connects the negative electrode of first voltage stabilizing didoe; The negative electrode of the 5th diode connects the positive pole of first capacitor; The negative pole of first capacitor connects the anode of first diode, and said the 4th resistor is connected in parallel on the two ends of first capacitor.
The steady optical circuit of said light modulation comprises phototriode, second triode, potentiometer, second voltage stabilizing didoe and thyristor; The collector electrode of said phototriode connects the negative electrode of first voltage stabilizing didoe; Emitter is connected the cathode output end of rectified current with the series circuit of potentiometer through second resistor; The emitter of said phototriode also connects the base stage of second triode; The emitter of second triode connects the negative electrode of first voltage stabilizing didoe, and collector electrode connects through the 3rd resistor and connects the negative electrode of second voltage stabilizing didoe and an end of second capacitor respectively, and the other end of said second capacitor connects the cathode output end of rectification circuit; The anode of said second voltage stabilizing didoe is through an end of thyristor connection bulb, and the anode of said thyristor connects bulb, and negative electrode connects the anode of first diode, and the control utmost point connects the anode of second voltage stabilizing didoe.
Said warm start circuit comprises the 3rd triode and the 3rd capacitor; The collector electrode of said the 3rd triode connects the anode of second voltage-stabiliser tube; Base stage is connected the negative electrode of the 5th diode through the 8th resistor and the series circuit of the 3rd capacitor; Wherein the negative pole of the 3rd capacitor connects the emitter of the 3rd triode through the 7th resistor, the anodal negative electrode that connects the 5th diode, and the emitter of said the 3rd triode connects the anode of first diode.
Said delay extinction circuit comprises second switch and operational amplifier; Said second switch is a single-pole double-throw switch (SPDT); The fixed contact of said second switch connects the cathode output end of rectification circuit; The in-phase input end through the 4th capacitor concatenation operation amplifier U1 also simultaneously, the in-phase input end of the anodal concatenation operation amplifier of the 4th capacitor wherein, negative pole connects the fixed contact of second switch; Second moving contact of said second switch is connected the positive pole of first capacitor through the 5th resistor and the series circuit of the 6th resistor; Simultaneously second moving contact of second switch is through the in-phase input end of the 5th resistor concatenation operation amplifier, and the output of said operational amplifier connects the base stage of the 3rd triode through the 9th resistor, and the output of operational amplifier also connects the inverting input of himself simultaneously; The negative power end of said operational amplifier connects the cathode output end of rectification circuit, and positive power source terminal connects the negative electrode of the 5th diode.
Adopt above technical scheme can reach following technique effect:
Because the utility model is provided with power circuit, the steady optical circuit of light modulation, warm start circuit and delay extinction circuit; Therefore make desk lamp have dimming function; Function is extinguished in warm start function and time-delay; Not only can protect user's eyesight, and desk lamp is safer when using, and has satisfied the multiple demand of people to desk lamp.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1: the utility model comprises power circuit, the steady optical circuit of light modulation, warm start circuit and delay extinction circuit; Said power circuit comprises rectification circuit, voltage stabilizing circuit and isolation filter circuit; The input of said rectification circuit is used to connect AC power; Two outputs of rectification circuit connect the two ends of desk lamp bulb; Second output of said rectification circuit connects the input of voltage stabilizing circuit, and the output of voltage stabilizing circuit connects the input of isolation filter circuit, and the output of isolation filter circuit connects the input of the steady optical circuit of light modulation, the input of warm start circuit and the input of delay extinction circuit respectively; The output of the steady optical circuit of said light modulation, the output of warm start circuit connect first output of rectification circuit in the power circuit jointly, and the output of said delay extinction circuit connects the warm start circuit.
Said rectification circuit comprises the rectifier bridge that the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4 form; Said voltage stabilizing circuit comprises first resistor R 1 and the first voltage stabilizing didoe DW1; The negative electrode of the said first voltage stabilizing didoe DW1 connects an end of first resistor R 1; The other end of first resistor R 1 connects the cathode output end of rectification circuit, and the anode of the first voltage stabilizing didoe DW1 connects the cathode output end of rectification circuit; Said isolation filter circuit comprises the 5th diode D5, the first capacitor C1 and the 4th resistor R 4; The anode of said the 5th diode D5 connects the negative electrode of the first voltage stabilizing didoe DW1; The negative electrode of the 5th diode D5 connects the positive pole of the first capacitor C1; The negative pole of the first capacitor C1 connects the cathode output end of rectification circuit, and said the 4th resistor R 4 is connected in parallel on the two ends of the first capacitor C1.
The steady optical circuit of said light modulation comprises phototriode Q1, the second triode Q2, potentiometer RP, the second voltage stabilizing didoe DW2 and thyristor VS; The collector electrode of said phototriode Q1 connects the negative electrode of the first voltage stabilizing didoe DW1; Emitter is connected the cathode output end of rectification circuit with the series circuit of potentiometer RP through second resistor R 2; The emitter of said phototriode Q1 also connects the base stage of the second triode Q2; The emitter of the second triode Q2 connects the negative electrode of the first voltage stabilizing didoe DW1; Collector electrode connects the negative electrode of the second voltage stabilizing didoe DW2 and the end of the second capacitor C2 respectively through the 3rd resistor R 3, and the other end of the said second capacitor C2 connects the cathode output end of rectification circuit; The anode of the said second voltage stabilizing didoe DW2 connects the control utmost point of thyristor VS, and the anode of said thyristor VS connects bulb, and negative electrode connects the cathode output end of rectification circuit.
Said warm start circuit comprises the 3rd triode Q3, the 3rd capacitor C3 and the 7th resistor R 7; The collector electrode of said the 3rd triode Q3 connects the anode of second voltage stabilizing, two utmost point DW2; The base stage of the 3rd triode Q3 is connected the negative electrode of the 5th diode D5 through the 3rd capacitor C3 and the series circuit that the 8th resistor R 8 is formed; The negative pole of the 3rd capacitor C3 connects the base stage of the 3rd triode Q3 through the 8th resistor R 8; The anodal negative electrode that connects the 5th diode D5, the C3 negative pole of the 3rd capacitor also connects the cathode output end of rectification circuit through the 7th resistor R 7 simultaneously, and the emitter of said the 3rd triode Q3 connects the cathode output end of rectification circuit.
Said delay extinction circuit comprises second switch S2 and operational amplifier U1; Said second switch S2 is a single-pole double-throw switch (SPDT); The fixed contact of said second switch S2 connects the cathode output end of rectification circuit; Second moving contact of second switch S2 is connected the positive pole of the first capacitor C1 with the series circuit of the 6th resistor R 6 through the 5th resistor R 5; Second moving contact of two switch S 2 is gone back the in-phase input end of concatenation operation amplifier U1 through the 5th resistor R 5 simultaneously; The output of operational amplifier U1 is through the base stage of the 9th resistor R 9 connections the 3rd triode Q3, and the output of operational amplifier U1 also connects the inverting input of himself simultaneously, and the negative power end of said operational amplifier U1 connects the cathode output end of rectification circuit in the power circuit; The cathode output end of rectification circuit also passes through the in-phase input end of the 4th capacitor C4 concatenation operation amplifier U1; The in-phase input end of the anodal concatenation operation amplifier U1 of said the 4th capacitor C4, negative pole connects the cathode output end of rectification circuit, and the positive power source terminal of said operational amplifier connects the negative electrode of the 5th diode D5.
When the user used desk lamp, with first switch S, 1 closure, this moment, external power source obtained the pulsed dc voltage of 12V after the rectification of power circuit, voltage stabilizing, supplied the one-way SCR VS control utmost point to trigger and used; The 5th diode D5 plays buffer action in the isolation filter circuit, and the first capacitor C1 strobes, and the 5th diode D5 and first capacitor C1 combination are used and made the stable 12V DC power supply confession integrated operational amplifier U1 use of formation on the 4th resistor R 4; And the 3rd capacitor C3 in the warm start circuit and the 7th resistor R 7 constitute differential circuit; Can produce a pulse voltage in the moment of circuit start by high step-down; Described pulse voltage is added on the base stage of the 3rd triode Q3 after through the 8th resistor R 8 current limlitings; Controlling the collector electrode of the 3rd triode Q3 and the resistance between the emitter changes from small to big; Therefore can control the conducting angle of controllable silicon VS, bulb also can be because of the variation brightness of the conducting angle of controllable silicon VS by dark to bright variation, reach the effect of warm start.Because the utility model also is provided with the steady optical circuit of light modulation, in the steady optical circuit of light modulation, is provided with phototriode Q1 and potentiometer RP, when light generation conversion; Resistance between phototriode Q1 collector electrode and the emitter can change according to the power of light, just is equivalent to a variable resistor between the collector electrode of the second triode Q2 and the emitter, controls the speed that discharges and recharges of this second capacitor C2; Can directly control the size of the conducting angle of controllable silicon VS like this; Through such FEEDBACK CONTROL, can make the brightness variation of bulb very little, reach the effect of steady light; Simultaneously because potentiometer RP is a variable resistor; Also can change the size of controllable silicon VS conducting angle, therefore can directly control the brightness of bulb, play effect the desk lamp light modulation.The delay extinction circuit of the utility model comprises second switch S2 and operational amplifier U1; Second switch S2 is a single-pole double-throw switch (SPDT), and under the normal condition, the fixed contact of second switch S2 is connected with second moving contact; Because the operational amplification circuit that this moment, operational amplifier U1 constituted is the voltage follower form; Therefore the 4th capacitor C 4 discharges, operational amplifier U1 output low level, desk lamp operate as normal at this moment; Take out holder when being connected with first moving contact when the centre of second switch S2, the 4th capacitor C4 charges through the 6th resistor R 6, and the voltage at the 4th capacitor C4 two ends slowly raises; When voltage was elevated to a certain degree, the 3rd triode Q3 just was switched on, and then the 3rd triode Q3 is saturated; This moment, controllable silicon VS turn-offed; The bulb of desk lamp extinguishes, and need not to break off first switch S 1 when therefore wanting the time delayed turn-off desk lamp, and only need the fixed contact of second switch S2 be connected with first moving contact gets final product; The effect of the 5th resistance R 5 is when reusing desk lamp behind the time delayed turn-off desk lamp in time delayed turn-off circuit; The fixed contact of second switch S2 is connected season the 4th capacitor C4 and slowly discharges by being connected with first moving contact to change with second moving contact, the desk lamp bulb prevents voltge surge desk lamp bulb by the process that secretly brightened.
The utility model is provided with the steady optical circuit of light modulation, warm start circuit and delay extinction circuit on the basis of existing desk lamp illumination; Circuit is simple, very easily realizes, and is simultaneously safer when the user uses desk lamp; And pay attention to protection more to user's eyes, satisfied user's multiple demand.
Claims (6)
1. multi-function desk lamp; Comprise power circuit; Said power circuit comprises rectification circuit; The input of rectification circuit is used to connect AC power; The positive-negative output end of rectification circuit connects the two ends of desk lamp bulb, and it is characterized in that: said multi-function desk lamp also comprises the steady optical circuit of light modulation, warm start circuit and delay extinction circuit, and the output of said power circuit connects the input of the steady optical circuit of light modulation, the input of warm start circuit and the input of delay extinction circuit respectively; The output of the steady optical circuit of said light modulation, the output of warm start circuit connect the cathode output end of rectification circuit in the power circuit jointly, and the output of said delay extinction circuit connects the warm start circuit.
2. multi-function desk lamp as claimed in claim 1; It is characterized in that: said power circuit also comprises voltage stabilizing circuit and isolation filter circuit; The cathode output end of said rectification circuit connects the input of voltage stabilizing circuit, and the output of voltage stabilizing circuit connects the input of isolation filter circuit.
3. multi-function desk lamp as claimed in claim 2 is characterized in that: said rectification circuit comprises the rectifier bridge that first diode, second diode, the 3rd diode and the 4th diode are formed; Said voltage stabilizing circuit comprises first resistor and first voltage stabilizing didoe; The negative electrode of said first voltage stabilizing didoe connects an end of first resistor; The other end of first resistor connects the negative electrode of second diode, and the anode of first voltage stabilizing didoe connects the anode of first diode; Said isolation filter circuit comprises the 5th diode, first capacitor and the 4th resistor; The anode of said the 5th diode connects the negative electrode of first voltage stabilizing didoe; The negative electrode of the 5th diode connects the positive pole of first capacitor; The negative pole of first capacitor connects the anode of first diode, and said the 4th resistor is connected in parallel on the two ends of first capacitor.
4. multi-function desk lamp as claimed in claim 3; It is characterized in that: the steady optical circuit of said light modulation comprises phototriode, second triode, potentiometer, second voltage stabilizing didoe and thyristor; The collector electrode of said phototriode connects the negative electrode of first voltage stabilizing didoe; Emitter is connected the cathode output end of rectified current with the series circuit of potentiometer through second resistor; The emitter of said phototriode also connects the base stage of second triode; The emitter of second triode connects the negative electrode of first voltage stabilizing didoe, and collector electrode connects through the 3rd resistor and connects the negative electrode of second voltage stabilizing didoe and an end of second capacitor respectively, and the other end of said second capacitor connects the cathode output end of rectification circuit; The anode of said second voltage stabilizing didoe is through an end of thyristor connection bulb, and the anode of said thyristor connects bulb, and negative electrode connects the anode of first diode, and the control utmost point connects the anode of second voltage stabilizing didoe.
5. multi-function desk lamp as claimed in claim 4; It is characterized in that: said warm start circuit comprises the 3rd triode and the 3rd capacitor; The collector electrode of said the 3rd triode connects the anode of second voltage-stabiliser tube; Base stage is connected the negative electrode of the 5th diode through the 8th resistor and the series circuit of the 3rd capacitor; Wherein the negative pole of the 3rd capacitor connects the emitter of the 3rd triode through the 7th resistor, the anodal negative electrode that connects the 5th diode, and the emitter of said the 3rd triode connects the anode of first diode.
6. like any described multi-function desk lamp of claim 1 to 5; It is characterized in that: said delay extinction circuit comprises second switch and operational amplifier; Said second switch is a single-pole double-throw switch (SPDT); The fixed contact of said second switch connects the cathode output end of rectification circuit; The in-phase input end through the 4th capacitor concatenation operation amplifier U1 also simultaneously, the in-phase input end of the anodal concatenation operation amplifier of the 4th capacitor wherein, negative pole connects the fixed contact of second switch; Second moving contact of said second switch is connected the positive pole of first capacitor through the 5th resistor and the series circuit of the 6th resistor; Simultaneously second moving contact of second switch is through the in-phase input end of the 5th resistor concatenation operation amplifier, and the output of said operational amplifier connects the base stage of the 3rd triode through the 9th resistor, and the output of operational amplifier also connects the inverting input of himself simultaneously; The negative power end of said operational amplifier connects the cathode output end of rectification circuit, and positive power source terminal connects the negative electrode of the 5th diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204228818U CN202353861U (en) | 2011-10-31 | 2011-10-31 | Multifunctional table lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204228818U CN202353861U (en) | 2011-10-31 | 2011-10-31 | Multifunctional table lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353861U true CN202353861U (en) | 2012-07-25 |
Family
ID=46542815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204228818U Expired - Fee Related CN202353861U (en) | 2011-10-31 | 2011-10-31 | Multifunctional table lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684143A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Light control circuit and lamp |
-
2011
- 2011-10-31 CN CN2011204228818U patent/CN202353861U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684143A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Light control circuit and lamp |
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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: 20120725 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |