CN103269538A - Control module with power supply detection function and the lamps it constitutes - Google Patents
Control module with power supply detection function and the lamps it constitutes Download PDFInfo
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- CN103269538A CN103269538A CN2013101289796A CN201310128979A CN103269538A CN 103269538 A CN103269538 A CN 103269538A CN 2013101289796 A CN2013101289796 A CN 2013101289796A CN 201310128979 A CN201310128979 A CN 201310128979A CN 103269538 A CN103269538 A CN 103269538A
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 238000004146 energy storage Methods 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims description 28
- 238000004020 luminiscence type Methods 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
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Abstract
A lamp with power supply detection function, comprising: the device comprises a power supply unit, a control module and a light-emitting module. The power supply unit provides a direct current power supply; the control module is provided with an energy storage unit, a detection unit and a monitoring unit, wherein the energy storage unit is electrically connected to the power supply unit and the monitoring unit respectively; the light-emitting module is respectively electrically connected with the power supply unit and the monitoring unit of the control module and adjusts the brightness according to the control signal.
Description
Technical field
The present invention is about a kind of control module of tool power supply measuring ability and the light fixture of formation thereof, especially about a kind of control module of adjusting its output signal according to the keying frequency of power source supply end.
Background technology
(the light-emitting diode of LED on the market; Light-emitting diode), because good, the long service life of luminous efficiency, power consumption are few, so to be widely used in various electronic products, for example lights source, LED TV, traffic lights, flashlight, headlight ... Deng.
Please refer to shown in Figure 1ly, it illustrates a kind of existing light fixture that M376097 number " brightness regulating circuit " patent of TaiWan, China patent announcement case discloses and the brightness adjustment control mode that adopts thereof.This light fixture 9 utilizes a bleeder circuit 91 to provide a driving voltage to export to a light emitting module 92, and this light fixture 9 has the size that a control circuit 93 can see through the driving voltage that this bleeder circuit 91 of control exports in addition, so that this light emitting module 92 can produce different brightness relatively according to different driving voltage.Yet, the disclosed control mode of this prior art certainly will be provided with a control piece in addition and be electrically connected to this control circuit 93,, the user adjusts the light luminance of this light emitting module 92 for operating this control circuit 93 through this control piece, yet electric energy is wasted in the loss that this prior art utilizes those divider resistance light modulations to cause exactly, therefore mean that efficient reduces, and the shortcoming that sees through analogy (resistance) dimming mode maximum be to launch photochromic temperature can be because LED current function and difference causes the led color transfer.Based on above-mentioned reason, the present invention proposes a kind of control module of the tool power supply measuring ability that can effectively improve above-mentioned shortcoming and the light fixture of formation thereof.
Summary of the invention
Purpose of the present invention is the above-mentioned shortcoming of improvement, a kind of control module of tool power supply measuring ability and the light fixture of formation thereof are provided, to utilize a control module according to the brightness of a light fixture of power supply state control of a power supply unit, so that the present invention has the function that multi-segment brightness is adjusted.
Another object of the present invention provides a kind of control module of tool power supply measuring ability and the light fixture of formation thereof, and the electric energy that utilizes an energy-storage units to lay in is to continue providing electric energy to keep the mechanism that an arithmetic element operates.
For reaching aforementioned goal of the invention, the light fixture of tool power supply measuring ability of the present invention, it comprises: a power supply unit, a control module and a light emitting module.This power supply unit provides direct current power; This control module is electrically connected to this power supply unit receiving and to store the direct current power of this power supply unit, and this control module produces control signal according to the power supply state of this power supply unit; This light emitting module is electrically connected this power supply unit and control module respectively, to receive this direct current power and to adjust brightness according to this control signal.
Description of drawings
Fig. 1: the circuit diagram of existing light fixture and the brightness adjustment control mode that adopts thereof.
Fig. 2: the circuit diagram of the control module of the power supply measuring ability of preferred embodiment of the present invention and the light fixture of formation thereof.
Fig. 3: the circuit diagram of another execution mode of control module of preferred embodiment of the present invention.
Fig. 4: the circuit diagram of the luminescence unit with reduction voltage circuit of preferred embodiment of the present invention.
Fig. 5: the circuit diagram of the luminescence unit with booster circuit of preferred embodiment of the present invention.
Fig. 6: the circuit diagram with the luminescence unit that returns the circuit of speeding of preferred embodiment of the present invention.
Fig. 7: the circuit diagram of the luminescence unit with straight forward circuit of preferred embodiment of the present invention.
[main element symbol description]
1 power supply unit, 2 control modules, 21 energy-storage units
211 storage capacitors, 212 diodes, 22 detecting units
221 first divider resistances, 222 second divider resistances, 23 monitoring units
231 arithmetic element 231a power end 231b sense terminals
31 drive circuits, 311 electronic power switches 312 the 3rd resistance
313 the 4th resistance, 32 luminescence units, 321 LED elements
33 luminescence units, 331 capacitors, 332 inductors
333 diodes, 34 luminescence units, 341 capacitors
342 diodes, 343 inductors, 35 luminescence units
351 first capacitors, 352 first diodes, 353 second diodes
354 resistors, 355 second capacitors, 36 luminescence units
361 diodes, 362 inductors, 9 light fixtures
91 bleeder circuits, 92 light emitting modules, 93 control circuits.
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. are described in detail below:
Please refer to shown in Figure 2ly, it discloses the control module of tool of the present invention power supply measuring ability and the light fixture of formation thereof.This light fixture comprises a power supply unit 1, a control module 2 and a light emitting module 3.This power supply unit 1 provides DC power supply and is electrically connected to this control module 2 and light emitting module 3; This control module 2 is electrically connected this light emitting module 3 and supplies to output control signals to this light emitting module 3; This light emitting module 3 is adjusted brightness according to this control signal.
In more detail, this power supply unit 1 is preferable to comprise a rectification circuit, in order to AC power is rectified into DC power supply and exports this control module 2 and light emitting module 3 to.Wherein, as shown in Figure 2, the rectification circuit that this power supply unit 1 comprises is preferably a full-bridge type rectification circuit.
This control module 2 has an energy-storage units 21, a detecting unit 22 and a monitoring unit 23, wherein this energy-storage units 21 and detecting unit 22 are electrically connected on respectively between this power supply unit 1 and the monitoring unit 23, so that this energy-storage units 21 stores electric power and transmits electric power to this monitoring unit 23 when this power supply unit 1 normal power supply, and do not provide this monitoring unit 23 to operate required electric power under the situation of output power at this power supply unit 1.And this detecting unit 22 is delivered to this monitoring unit 23 according to the power supply state generation detection signal of this power supply unit 1.This monitoring unit 23 is connected to this light emitting module 3, so that this monitoring unit 23 is sent to this light emitting module 3 with this control signal and makes it luminous by after this this control signal of detection signal judgement generation.
In detail, this energy-storage units 21 is preferable to comprise a storage capacitor 211 and diode 212 that is connected in series in mutually between this power supply unit 1 and the earth point, and these diode 212 preferable electrically being series between this storage capacitor 211 and this power supply unit 1.This detecting unit 22 is preferably first divider resistance 221 and second divider resistance 222 of being connected in series in regular turn between this power supply unit 1 and the earth point and constitutes, and the preferable resistance value less than this first divider resistance 221 of the resistance value of this second divider resistance 222, so that the electric power signal that this detection signal is exported compared to this power supply unit 1 has less voltage amplitude.This monitoring unit 23 has an arithmetic element 231, and this arithmetic element 231 has a power end 231a, a sense terminals 231b and an order end 231c, wherein this power end 231a is for being connected to this energy-storage units 21 receiving the electric power that this energy-storage units 21 is provided, and the preferable series connection contact that is connected between this storage capacitor 211 and this diode 212 of this power end 231a; This sense terminals 231b is for being connected to this detecting unit 22 receiving this detection signal, and the preferable series connection contact that is connected between this two divider resistance 221,222 of this sense terminals 231b; And this order end 231c is for being connected to this light emitting module 3, in order to transmit this control signal.Wherein, this arithmetic element 231 may be selected to be one and drives Xin Pian ﹝ IC Chip ﹞, Wei Chu Li Qi ﹝ MCU ﹞, a field programmable gate Zhen Lie ﹝ Field Programmable Gate Array; FPGA ﹞, a complex programmable logic Yuan spare ﹝ Complex Programmable Logic Device; CPLD ﹞ or a Zhuan become Dian Lu ﹝ Application Specific Integrated Circuit with Ji; ASIC ﹞.In addition; this monitoring unit 23 is preferable to have a Zener diode 232 in addition; this Zener diode 232 is connected between this power end 231a and the earth point, and so as to overvoltage protection is provided, the excessive voltage that prevents from surpassing the puncture voltage of this Zener diode 232 is destroyed this arithmetic element 231.Please be in addition with reference to shown in Figure 3, it illustrates the another kind of execution mode of detecting unit 22 of the present invention, wherein constitute one of them of this first divider resistance 221 or this second divider resistance 222 with a photo resistance, and constitute this second divider resistance 222 in this preferable selection; And it illustrates this arithmetic element 231 in addition is a driving Xin Pian ﹝ IC Chip ﹞.
Referring again to shown in Figure 2, this light emitting module 3 comprises a drive circuit 31 and luminescence unit 32 that is serially connected with between this power supply unit 1 and the earth point.This drive circuit 31 is for the order end 231c that is connected to this arithmetic element 231, and receiving this control signal, and then control is by the electric current of this luminescence unit 32.In detail, this drive circuit 31 is preferable to have an electronic power switch 311, and the Shan Ji Duan ﹝ gate ﹞ of this electronic power switch 311 namely is coupled to this order end 231c, in order to controlled the conducting state of this electronic power switch 311 by the voltage level of this control signal.In addition; these drive circuit 31 preferable the 3rd resistance 312 and the 4th resistance 313 of comprising in addition; the 3rd resistance 312 is electrically connected between this gate terminal and the order end 231c; 313 source terminals that are electrically connected on this electronic power switch 311 of the 4th resistance are so that this two resistance 312,313 provides overcurrent protection to prevent this electronic power switch 311 of the excessive puncture of electric current.The electric current that this luminescence unit 32 provides in this power supply unit 1 by the time luminous, and this luminescence unit 32 is preferable is made of a Fa Guang Er Ji Guan ﹝ LED ﹞ element 321; Perhaps, shown in Fig. 4 to 7, also can by this LED element 321 and Jiang Ya ﹝ Buck ﹞ circuit, one Sheng Ya ﹝ Boost ﹞ circuit, a Fan Chi ﹝ Flyback ﹞ circuit or a Shun and constitute other forms of luminescence unit 33,34,35 or 36 Xiang ﹝ Forward ﹞ circuit.
In detail, please refer to shown in Figure 4, by capacitor 331 these LED elements 321 electrically in parallel of the reduction voltage circuit of this luminescence unit 33 and be electrically connected to an inductor 332, and diode 333 folk prescriptions of reduction voltage circuit that see through this luminescence unit 33 can be reached the purpose of output voltage pressure drop to the conducting of electric current.Refer again to shown in Figure 5, the booster circuit of this luminescence unit 34 and the discrepancy of aforesaid reduction voltage circuit are, the LED element 321 of this luminescence unit 34 is except with the capacitor 341 of this booster circuit is electrically in parallel, and be connected in series a diode 342 and an inductor 343 are reached the purpose of output booster tension level so as to utilizing the energy that this inductor 343 discharges.Wherein, owing to the luminescence unit 33 of above-mentioned form, 34 input, output are not isolated, so it is applicable to that input and output do not have the situation of insulating requirements.Compared to this, referring again to shown in Figure 6, first capacitor, 351 these LED elements 321 electrically in parallel that return the circuit of speeding of this luminescence unit 35, first diode, 352 serial connections of returning the circuit of speeding of this luminescence unit 35 are to this LED element 321, and second diode 353 that returns the circuit of speeding of this luminescence unit 35 is electrically connected by a resistor 354 and the parallel circuits that second capacitor 355 is formed, and the positively biased end of this second diode 353 is electrically connected to the drive circuit 31 of this luminescence unit 35, reach to secondary side and boost or the purpose of step-down so can see through the primary side induced voltage that returns the circuit of speeding of this luminescence unit 35, and have input, the function that output is isolated.In addition, please refer to shown in Figure 7, the straight forward circuit of this luminescence unit 36 is with the aforesaid different place of the circuit of speeding of returning, the series circuit that this LED element 321 and an inductor 362 are formed is a diode 361 in parallel again, in order to further utilize this diode 361 to reduce the loss of this straight forward circuit, wherein Schottky diode of these diode 361 preferable selections is to increase the efficient of this straight forward circuit.
From the above, please be simultaneously with reference to Fig. 2 and 3, details are as follows for the start principle of the control module of this tool power supply measuring ability and the light fixture of formation thereof:
When this power supply unit 1 normal power supply, this detection signal that this detecting unit 22 is produced with this two divider resistance 221,222 for example is a flat ﹝ of standard electric piezoelectricity: 2.5v ﹞; And when this power supply unit 1 was stopped power supply, this detection signal that this detecting unit 22 is produced with this two divider resistance 221,222 for example then was a low-voltage Dian Ping ﹝: 0v ﹞.Whereby, this arithmetic element 231 predicts this detection signal is switched to this low voltage level by this normal voltage level time point by this sense terminals 231b, and the time point that is switched to this normal voltage level by this low voltage level, so that further determine the magnitude of voltage of this control signal size, frequency and duty ratio wherein at least one, wherein this control signal is divided into several according to size, frequency or the duty ratio of its magnitude of voltage and switches section.In addition, as shown in Figure 3, when this control module 2 is finished by described another kind of execution mode, can only operate by the light source of this photo resistance of blocking-up, and need not see through this power supply unit 1 normal or adjustment brightness of stopping power supply of control.That is if this photo resistance is subjected to the light source irradiation, this detection signal for example is the flat ﹝ of this standard electric piezoelectricity: 2.5v ﹞; And if the resistance value of this photo resistance is blocked so that improved to the light source of this photo resistance, then this detection signal for example is a Gao Dian piezoelectricity Ping ﹝: 5v ﹞.Different with previous described embodiment is this arithmetic element 231 predicts this detection signal by this sense terminals 231b and switches to the time point of this high-voltage level and the time point that is switched to this normal voltage level by this high-voltage level by this normal voltage level.
In detail, when this control signal be these several switch one of them of section, and this detection signal is ﹝ or ﹞ when switching to this high-voltage level by this normal voltage level when switching time, point switched to this low voltage level by this normal voltage level, and whether this arithmetic element 231 namely detects this detection signal and switched to the flat ﹝ of this standard electric piezoelectricity or switched to the flat ﹞ of this standard electric piezoelectricity by this high-voltage level by this low voltage level in one section Preset Time after this some switching time.If this detection signal switches in this Preset Time, this arithmetic element 231 is adjusted into the next section that switches with this control signal; Otherwise namely maintain same switching section.Whereby, namely can utilize this control signal to control the brightness of this light emitting module 3.
For example, default this control signal can class be divided into four and switch sections, and these four switch 25%, 50%, 75% and 100% the luminous quantity that section corresponds respectively to the high-high brightness of this light emitting module 3, and this Preset Time is 1 second.If the former switching section of this control signal is corresponding to 50% luminous quantity, and if namely switch to the flat ﹝ of this standard electric piezoelectricity by this low voltage level or switch to the flat ﹞ of this standard electric piezoelectricity by this high-voltage level in this detection signal 1 second after this some switching time, then this control signal is changed into and is nextly switched section so that the luminous quantity of this light emitting module 3 is 75% of its high-high brightness; And if should not switch to the flat ﹝ of this standard electric piezoelectricity by this low voltage level or switch to the flat ﹞ of this standard electric piezoelectricity by this high-voltage level in 1 second after this some switching time, then this control signal still be maintained former switching section ﹝ namely corresponding to a light amount ﹞ of 50% of the high-high brightness of this light emitting module 3.Whereby, light fixture of the present invention namely can have the function that multi-segment brightness is adjusted.
When distinguishing these several when switching section according to the duty ratio of the magnitude of voltage of this control signal, this arithmetic element 231 output pulse widths modulation (Pulse width modulation; PWM) the ON time ratio of this drive circuit 31 of signal deciding, and then reach this luminescence unit 32 of power electric current output driving that can adjust.
In sum, the control module of tool power supply measuring ability of the present invention and the light fixture of formation thereof, it mainly is the lasting running of keeping this monitoring unit 23 with this this energy-storage units 21, and utilize this detecting unit 22 that this detection signal is provided, so that this monitoring unit 23 is judged the power supply situation of this power supply unit 1 according to this detection signal, and then adjust this control unit so that light fixture of the present invention has the function that multi-segment brightness is adjusted.
The control module of tool power supply measuring ability of the present invention and the light fixture of formation thereof, it utilizes a control module according to the brightness of a light fixture of power supply state control of a power supply unit, so that the present invention has the effect that multi-segment brightness is adjusted.
The control module of tool power supply measuring ability of the present invention and the light fixture of formation thereof, the electric energy that utilizes an energy-storage units to lay in is to continue providing electric energy to keep the effect that an arithmetic element operates.
Claims (13)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101289796A CN103269538A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and the lamps it constitutes |
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| CN2013101289796A CN103269538A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and the lamps it constitutes |
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| CN2010101908773A Division CN102269345A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and lamp comprising control module |
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| CN103269538A true CN103269538A (en) | 2013-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937443A (en) * | 2017-03-22 | 2017-07-07 | 佛山市旺科电子科技有限公司 | Light modulation toning controller and its method based on input voltage control |
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2010
- 2010-06-03 CN CN2013101289796A patent/CN103269538A/en active Pending
Patent Citations (7)
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| CN1874634A (en) * | 2006-06-09 | 2006-12-06 | 姚荣湘 | Controllable LED illuminator, and method for controlling luminescence |
| CN101489335A (en) * | 2008-01-18 | 2009-07-22 | 尼克森微电子股份有限公司 | Light emitting diode driving circuit and secondary side controller thereof |
| CN101621878A (en) * | 2008-07-03 | 2010-01-06 | 林焕博 | Dimming driving device and method |
| CN101657051A (en) * | 2008-08-19 | 2010-02-24 | 联咏科技股份有限公司 | Dimming device for light emitting diode, related dimming method thereof and light emitting device |
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| CN106937443A (en) * | 2017-03-22 | 2017-07-07 | 佛山市旺科电子科技有限公司 | Light modulation toning controller and its method based on input voltage control |
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Application publication date: 20130828 |