CN102269345A - Control module with power supply detection function and lamp consisting of same - Google Patents
Control module with power supply detection function and lamp consisting of same Download PDFInfo
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- CN102269345A CN102269345A CN2010101908773A CN201010190877A CN102269345A CN 102269345 A CN102269345 A CN 102269345A CN 2010101908773 A CN2010101908773 A CN 2010101908773A CN 201010190877 A CN201010190877 A CN 201010190877A CN 102269345 A CN102269345 A CN 102269345A
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Abstract
The invention relates to a lamp with a power supply detection function. The lamp comprises a power supply unit, a control module and a light-emitting module, wherein 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; the energy storage unit is electrically connected to the power supply unit and the monitoring unit respectively; the detection unit generates a detection signal according to the power supply state of the power supply unit; the monitoring unit is electrically connected to the detection unit, receives the detection signal and generates a control signal according to the detection signal; and the light-emitting module is electrically connected to the power supply unit and the monitoring unit of the control module respectively and adjusts 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 ... etc.
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 disclosed and the brightness adjustment control mode that is adopted 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 exported 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 be caused 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 of the brightness of a control module, so that the present invention has the function that multi-segment brightness is adjusted according to a light fixture of power supply state control of a power supply unit.
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.
The present invention provides a kind of control module of tool power supply measuring ability in addition, and it comprises: an energy-storage units, a detecting unit and a monitoring unit.This energy-storage units receives and stores direct current power; This detecting unit produces detection signal according to the power supply state of this direct current power; This monitoring unit is electrically connected to this energy-storage units and this detecting unit respectively, with electric power and this detection signal that receives this energy-storage units, and according to this detection signal generation control signal.
Description of drawings
Fig. 1: the circuit diagram of existing light fixture and the brightness adjustment control mode that adopted 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 embodiment 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
The specific 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 source 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.
More in detail, this power supply unit 1 is preferable to comprise a rectification circuit, so that AC power is rectified into dc source 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 is comprised 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 one first divider resistance 221 and one second divider resistance 222 that are 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, so that transmit this control signal.Wherein, this arithmetic element 231 may be selected to be one and drives chip (IC Chip), a microprocessor (MCU), a field programmable gate array (FieldProgrammable Gate Array; FPGA), complex programmable logic element (ComplexProgrammable Logic Device; CPLD) or a special IC (ApplicationSpecific Integrated Circuit; 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 to surpass the breakdown 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 embodiment 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, and constitute this second divider resistance 222 in this preferable selection with a photo resistance; And it illustrates this arithmetic element 231 in addition is a driving chip (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 gate terminal of this electronic power switch 311 (gate) promptly is coupled to this order end 231c, so that 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 one the 3rd resistance 312 and one 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 is provided in this power supply unit 1 by the time luminous, and this luminescence unit 32 is preferable is made of a light emitting diode (LED) element 321; Perhaps, shown in Fig. 4 to 7, also can by this LED element 321 and a step-down (Buck) circuit, (Boost) circuit that boosts, one return speed (Flyback) circuit or one forward (Forward) circuit constitute other forms of luminescence unit 33,34,35 or 36.
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 that 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, because the input of the luminescence unit 33,34 of above-mentioned form, output do not isolate, 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 one second parallel circuit that 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 diode 361 in parallel again that this LED element 321 and an inductor 362 are formed, so that 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 detecting unit 22 (for example: 2.5v) is a normal voltage level with this detection signal that this two divider resistance 221,222 is produced; And when this power supply unit 1 was stopped power supply, this detecting unit 22 (for example: 0v) then was a low voltage level with this detection signal that this two divider resistance 221,222 is produced.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 switches 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 dutycycle wherein at least one, wherein this control signal is divided into several according to size, frequency or the dutycycle 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 embodiment, can only operate, and need not see through this power supply unit 1 normal or adjustment brightness of stopping power supply of control by the light source of this photo resistance of blocking-up.That is if this photo resistance is subjected to the light source irradiation, this detection signal (for example: 2.5v) is this normal voltage level; 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: 5v) is a high-voltage level.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 when switching to this high-voltage level (or by this normal voltage level) when switching time, point switched to this low voltage level by this normal voltage level, this arithmetic element 231 promptly detect this detection signal and whether switch to this normal voltage level (or switch to this normal voltage level by this high-voltage level) by this low voltage level switching time in one section Preset Times after this point.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 promptly maintain same switching section.Whereby, promptly 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 promptly switch to this normal voltage level (or switch to this normal voltage level by this high-voltage level) by this low voltage level in this detection signal 1 second after this point, 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 switching time; And if do not switch to this normal voltage level (or switch to this normal voltage level by this high-voltage level) by this low voltage level in should 1 second after this point, then this control signal still is maintained former switching section 50% luminous quantity of the high-high brightness of this light emitting module 3 (promptly corresponding to) switching time.Whereby, light fixture of the present invention promptly can have the function that multi-segment brightness is adjusted.
When distinguishing these several when switching section according to the dutycycle 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 module 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 the brightness of a control module according to 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 (19)
1. the light fixture of tool power supply measuring ability is characterized in that comprising:
A power supply unit, it provides direct current power;
A control module, it 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;
A light emitting module, it is electrically connected this power supply unit and control module respectively, to receive this direct current power and to adjust luminosity according to this control signal.
2. the light fixture of tool power supply measuring ability as claimed in claim 1, it is characterized in that: this control module has an energy-storage units, a detecting unit and a monitoring unit, this energy-storage units is electrically connected to this power supply unit and monitoring unit respectively, to receive and to store the electric power of this power supply unit and supply power to this monitoring unit, this detecting unit produces detection signal according to the power supply state of this power supply unit, this monitoring unit is electrically connected to this detecting unit and receives this detection signal, and produces this control signal according to this detection signal.
3. the light fixture of tool power supply measuring ability as claimed in claim 2, it is characterized in that: this energy-storage units comprises a storage capacitor and diode that is connected in series mutually, this storage capacitor and diode are connected between this power supply unit and the earth point, and the series connection contact between this storage capacitor and the diode is connected to this monitoring unit.
4. the light fixture of tool power supply measuring ability as claimed in claim 2, it is characterized in that: this detecting unit comprises one first divider resistance and one second divider resistance that is connected in series mutually, this two divider resistance is connected between this power supply unit and the earth point, and the series connection contact between this two divider resistance is connected to this monitoring unit.
5. the light fixture of tool power supply measuring ability as claimed in claim 4, it is characterized in that: one of this first divider resistance and second divider resistance are a photo resistance.
6. the light fixture of tool power supply measuring ability as claimed in claim 2, it is characterized in that: this monitoring unit comprises an arithmetic element, and this arithmetic element has a power end, a sense terminals and an order end, wherein this power end is connected to this energy-storage units, this sense terminals is connected to this detecting unit, and this order end is connected to this light emitting module.
7. the light fixture of tool as claimed in claim 6 power supply measuring ability is characterized in that: this monitoring unit has a diode in addition and is connected between this power end and the earth point.
8. the light fixture of tool power supply measuring ability as claimed in claim 1, it is characterized in that: this light emitting module comprises a drive circuit and luminescence unit that is serially connected with between this power supply unit and the earth point.
9. the light fixture of tool as claimed in claim 8 power supply measuring ability, it is characterized in that: this luminescence unit comprises light-emitting diode, and reduction voltage circuit or booster circuit or one return speed circuit or a straight forward circuit.
10. the light fixture of tool power supply measuring ability as claimed in claim 6 is characterized in that: this arithmetic element is one and drives chip, a microprocessor, a field programmable gate array, a complex programmable logic element or a special IC.
11. the light fixture of tool as claimed in claim 1 power supply measuring ability is characterized in that: size, frequency and the dutycycle of the magnitude of voltage of the control signal that this control module can modulation be exported wherein at least one.
12. the control module of a tool power supply measuring ability, it comprises:
An energy-storage units receives and stores direct current power;
A detecting unit is according to the power supply state generation detection signal of this direct current power;
A monitoring unit is electrically connected to this energy-storage units and this detecting unit respectively, with electric power and this detection signal that receives this energy-storage units, and according to this detection signal generation control signal.
13. the control module of tool power supply measuring ability as claimed in claim 12, it is characterized in that: this detecting unit comprises one first divider resistance and one second divider resistance that is connected in series mutually, and the series connection contact between this two divider resistance is connected to this monitoring unit.
14. the control module of tool power supply measuring ability as claimed in claim 13, it is characterized in that: one of this first divider resistance and second divider resistance are a photo resistance.
15. the control module of tool power supply measuring ability as claimed in claim 12, it is characterized in that: this energy-storage units comprises a storage capacitor and diode that is connected in series mutually, and the series connection contact between this storage capacitor and the diode is connected to this monitoring unit.
16. the control module of tool power supply measuring ability as claimed in claim 12, it is characterized in that: this monitoring unit comprises an arithmetic element, and this arithmetic element has a power end, a sense terminals and an order end, wherein this power end is connected to this energy-storage units, this sense terminals is connected to this detecting unit to receive this detection signal, this this control signal of order end output.
17. the control module of tool power supply measuring ability as claimed in claim 16 is characterized in that: this arithmetic element is one and drives chip, a microprocessor, a field programmable gate array, a complex programmable logic element or a special IC.
18. the control module of tool as claimed in claim 12 power supply measuring ability is characterized in that: size, frequency and the dutycycle of the magnitude of voltage of the control signal that this monitoring unit can modulation be exported wherein at least one.
19. the control module of tool as claimed in claim 16 power supply measuring ability is characterized in that: this monitoring unit has a Zener diode in addition and is connected between this power end and the earth point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101908773A CN102269345A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and lamp consisting of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101908773A CN102269345A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and lamp consisting of same |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101289796A Division CN103269538A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and lamp consisting of control module |
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| CN102269345A true CN102269345A (en) | 2011-12-07 |
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| CN2010101908773A Pending CN102269345A (en) | 2010-06-03 | 2010-06-03 | Control module with power supply detection function and lamp consisting of same |
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| JP2009232623A (en) * | 2008-03-24 | 2009-10-08 | Toshiba Lighting & Technology Corp | Power supply unit and luminaire |
| KR20100029318A (en) * | 2008-09-08 | 2010-03-17 | 차상환 | A circuit of for-hire light for taxicab |
| CN201439889U (en) * | 2009-06-16 | 2010-04-21 | 建准电机工业股份有限公司 | Lamp |
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| CN1874634A (en) * | 2006-06-09 | 2006-12-06 | 姚荣湘 | Controllable LED illuminator, and method for controlling luminescence |
| CN200941704Y (en) * | 2006-06-09 | 2007-08-29 | 姚荣湘 | Controllable LED luminous device |
| CN101489335A (en) * | 2008-01-18 | 2009-07-22 | 尼克森微电子股份有限公司 | LED driving circuit and secondary side controller thereof |
| JP2009232623A (en) * | 2008-03-24 | 2009-10-08 | Toshiba Lighting & Technology Corp | Power supply unit and luminaire |
| KR20100029318A (en) * | 2008-09-08 | 2010-03-17 | 차상환 | A circuit of for-hire light for taxicab |
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Application publication date: 20111207 |