CN104023446A - Power source control device for indoor illuminating lamp - Google Patents
Power source control device for indoor illuminating lamp Download PDFInfo
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- CN104023446A CN104023446A CN201410267064.8A CN201410267064A CN104023446A CN 104023446 A CN104023446 A CN 104023446A CN 201410267064 A CN201410267064 A CN 201410267064A CN 104023446 A CN104023446 A CN 104023446A
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- indoor illumination
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- power
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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
Abstract
The invention provides a power source control device for an indoor illuminating lamp. The power source control device comprises an input rectifying module, a main control module and an output rectifying module. The input rectifying module and the output rectifying module are respectively connected with the main control module, and the input rectifying module is used for filtering and rectifying an input power source. The main control module is used for detecting and controlling the working state of a power source of the indoor illuminating lamp. The output rectifying module is used for filtering and rectifying an output power source and adjusting the voltage of the output power source, and the main control module is used for detecting the working environment temperature of the indoor illuminating lamp in real time through a temperature detecting unit. When the working environment temperature is higher than a preset temperature value, output current of the power source is reduced. When the working environment temperature is higher than the preset temperature value, derating control over the power source of the indoor illuminating lamp is automatically performed, meanwhile, the service life, safety performance and normal working of the indoor illuminating lamp are guaranteed, and the defect that the indoor illuminating lamp is burned out due to over temperature or flickers is avoided.
Description
Technical field
The present invention relates to a kind of power control, relate in particular to a kind of power control of indoor illumination.
Background technology
Present indoor illumination, especially indoor handkerchief lamp and Down lamp, often cause in actual use shorten the useful life of illuminating lamp because of excess Temperature, even if or illuminating lamp does not burn out and can, because the power output of power supply is excessive, excess Temperature causes bulb flickering, affect very large on result of use; Even more serious time, also may bring serious potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is that a kind of power control that can automatically carry out the indoor illumination of derate use after temperature exceedes set point to output need to be provided.
To this, the invention provides a kind of power control of indoor illumination, comprise: input rectifying module, main control module and output rectification module, described input rectifying module is connected with main control module respectively with output rectification module, described input rectifying module is for realizing filtering and the rectification to input power, described main control module for detection of and control the operating state of the power supply of indoor illumination, described output rectification module is for realizing the filtering to out-put supply, rectification and voltage-regulation, described main control module detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit, when operating ambient temperature is during higher than temperature preset value, reduce the output current of power supply.
Described input rectifying module is for realizing filtering and rectification to input power, and input rectifying module after anti-interference device filtering part is disturbed, then is piled rectification by diode bridge by the AC power supplies of input, obtains level and smooth DC power supply; Described output rectification module is for realizing filtering, rectification and the voltage-regulation to out-put supply, described output rectification module is the Switching Power Supply output module that comprises filter circuit, rectification circuit and output control circuit, this output rectification module can by after the transmission of transformer, use diode realize rectification, electric capacity realize the flat ripple of filtering anti-around and common mode inductance realize output and regulate, obtain output voltage and output current that user needs.
Described main control module detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit, and realize the control of the power work state to indoor illumination by master control IC chip, the control of power work state is specially to power output and the operating ambient temperature of real-time monitoring indoor illumination, when operating ambient temperature is during higher than temperature preset value, by reducing the output current of power supply, turn down to ensure that by the brightness of indoor illumination its temperature meets normal working range, by the automatic derate control of this power supply to indoor illumination, the present invention is ensureing on the useful life of indoor illumination and the basis of security performance, can also automatically regulate the power output of indoor illumination, ensure the normal work of indoor illumination with this.
Further improvement of the present invention is, also comprises sampling feedback circuit and radiating element, and described sampling feedback circuit is for detection of the operating state of radiating element, and the operating state of radiating element is fed back to main control module to control the power output of power supply.
Described radiating element is arranged in the light fixture of indoor illumination, is used to the operational environment of indoor illumination to dispel the heat; Described sampling feedback circuit detects the operating state of radiating element in real time, after radiating element breaks down, in time fault message is fed back to main control module, main control module receives after the fault message of radiating element, will carry out derate use to indoor illumination, suitably turn down the brightness of indoor illumination, like this, just can after breaking down, radiating element ensure the normal operation of indoor illumination, meanwhile, the problem of also having avoided the operating ambient temperature that makes indoor illumination because of radiating element fault to raise.
Further improvement of the present invention is, in the time that the operating state of radiating element is fault, reduces the power output of power supply by main control module.Reduce the power output of power supply, namely turn down the brightness of indoor illumination, like this, illumination is still normally being carried out, but but can control well the caloric value of indoor illumination; As for the number of power output that reduces power supply, can control according to user-defined setting, or realize automatic control by main control unit according to the relation between operating ambient temperature and power output.
Further improvement of the present invention is, described radiating element is fan, described sampling feedback circuit comprises fan-status detecting unit, whether described fan-status detecting unit is by detecting through the electric current of passing through fan and then the operating state of judging fan as normally, if the operating state of fan is fault, fault message is fed back to main control module, the power output that described main control module reduces power supply with the operating ambient temperature that ensures indoor illumination not higher than temperature preset value.
Further improvement of the present invention is, in the time that any one situation appears short circuit, opens circuit and block in leaf in fan, judges that its operating state is as fault, described fan-status detecting unit comprises optocoupler U3, 1 pin of described optocoupler U3 is connected to the power end of operational amplifier U2-A by resistance R 28 and resistance R 30, 1 pin of described optocoupler U3 is by resistance R 28, resistance R 37, capacitor C 12 and resistance R 31 are connected to the output of operational amplifier U2-A, 2 pins of described optocoupler U3 are by resistance R 39, triode Q2, capacitor C 12 and resistance R 31 are connected to the output of operational amplifier U2-A, 2 pins of described optocoupler U3 are by resistance R 39, triode Q2, capacitor C 12 and resistance R 33 are connected to the output of operational amplifier U2-B, between 1 pin of described optocoupler U3 and 2 pins, be connected with resistance R 38.
Further improvement of the present invention is, in the time that fan occurs short circuit and opens circuit, the light-emitting diode conducting of optocoupler U3 is luminous, and now, fault message is fed back to main control module by fan-status detecting unit, and then controls power supply and reduce its power output; In the time there is card leaf in fan, if fan inside is provided with self-inspection IC chip, by testing self-inspection IC chip testing no current by predicating fault; If self-inspection IC chip is not with in fan inside, the internal temperature that detects indoor illumination by the temperature detecting unit of main control module is to take a decision as to whether fault.
Fan failure has 3 phenomenons conventionally: short circuit, open circuit and block leaf; Fan short circuit and open circuit obvious with fan normal condition contrast phenomenon, after fan short circuit or opening circuit, can make the light-emitting diode conducting of optocoupler U3 luminous, the fault message of this fan feeds back to the control IC chip of main control module as primary control, before the operating ambient temperature of indoor illumination raises, regulate and control power supply and reduce power output, to ensure the stability of operating ambient temperature, improve useful life and the coefficient of safety of indoor illumination.
The judgement of fan card leaf fault, be divided into two kinds of different fans: first, fan inside carries self-inspection IC chip, detect the chip of fan work state, after appearance card leaf, no current passes through, and then be judged to be fan card leaf, processing mode and fan open circuit quite, the control IC chip that feeds back to main control module by the fault message of this fan is as primary control, the power output of power supply is carried out the regulation and control of derate use before the operating ambient temperature of indoor illumination raises, adopt this fan, testing process is effective fast, to the regulation and control of indoor illumination operating ambient temperature at the right time, make operating ambient temperature stable, second, fan inside is without self-inspection IC chip, adopt prevailing fan, also not obvious through the electric current of passing through fan after appearance card leaf, in this situation, power supply is by the temperature detecting unit control power supply derate output of main control module inside, adopt this fan, volume is little, and cost is low, also can ensure that the working temperature of indoor illumination can not exceed temperature preset value simultaneously.
Further improvement of the present invention is, described temperature preset value is 65 DEG C.In the time that operational environment is no more than 65 DEG C, the operating state of indoor illumination is the most stable, proves after tested the especially indoor illumination of the middle low power below 60W, as the lamp of lying prone below 60W, high, the long service life of operating safety factor under the environment that is no more than 65 DEG C.Certainly, according to different applied environments, temperature preset value is adjustable, and for the indoor illumination of the middle low power below 60W, temperature preset value of the present invention is set as 65 DEG C, and effect is best.
Further improvement of the present invention is, described indoor illumination is the handkerchief lamp of power below 60W.The invention is not restricted to the lamp of lying prone below 60W, but be preferably the middle low power indoor illumination below 60W, the indoor illumination self-temperature of this middle low power changes fast, and operating ambient temperature is had relatively high expectations, and it is very good that the present invention is applied in the indoor illumination of the middle low power below 60W effect.
Further improvement of the present invention is, described temperature detecting unit comprises thermistor; Described thermistor and diode are parallel with one another, and are connected between the power supply VCC and enable pin NC of IC chip U5 of main control module; The IC chip U5 of described main control module detects the voltage of thermistor by enable pin NC.
Described IC chip U5 is master control IC chip, when the operating ambient temperature of power supply is elevated to specified temp, during such as 65 DEG C, if temperature continues to raise, the resistance of thermistor will be reduced to and exceed particular value, and the IC chip U5 of main control module detects voltage by enabling pin position NC, and by Voltage Feedback to IC chip U5, control and reduce output current by IC chip U5, play and reduce power effect, realize the function that power supply derate is used.
Further improvement of the present invention is, described output rectification module comprises the diode D1 of common F level, described diode D1 is in parallel with capacitor C 1 realizes rectification, then by capacitor C 4, capacitor C 3, resistance R 9 and common mode inductance L2 realize the flat ripple of electric capacity anti-around, and then voltage and the electric current of output demand.
Compared with prior art, beneficial effect of the present invention is, described main control module detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit, and realize the control of the power work state to indoor illumination by master control IC chip, when operating ambient temperature is during higher than temperature preset value, meet normal working range by the power output that reduces power supply to ensure its temperature, by the automatic derate control of this power supply to indoor illumination, the present invention has ensured useful life and the security performance of indoor illumination, simultaneously can also be by automatically regulating the power output of indoor illumination to ensure the normal work of indoor illumination, avoid indoor illumination to extinguish because excess temperature burns out or the drawback of glimmering, on this basis, can also automatically detect by sampling feedback circuit the operating state of radiating element, in the time that radiating element breaks down, take in time the primary control to the use of power supply derate, avoid well the operating ambient temperature of indoor illumination to reach the possibility of desired temperature.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the circuit connection diagram of an embodiment of the present invention;
Fig. 3 is the circuit connection diagram of the input rectifying module of an embodiment of the present invention;
Fig. 4 is the circuit connection diagram of the main control module of an embodiment of the present invention;
Fig. 5 is the circuit connection diagram of the output rectification module of an embodiment of the present invention;
Fig. 6 is the circuit connection diagram of the sampling feedback circuit of the another kind of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail.
Embodiment 1:
As shown in Figures 1 to 5, this example provides a kind of power control of indoor illumination, comprise: input rectifying module 1, main control module 2 and output rectification module 3, described input rectifying module 1 is connected with main control module 2 respectively with output rectification module 3, described input rectifying module 1 is for realizing filtering and the rectification to input power, described main control module 2 for detection of and control the operating state of the power supply of indoor illumination, described output rectification module 3 is for realizing the filtering to out-put supply, rectification and voltage-regulation, described main control module 2 detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit 201, when operating ambient temperature is during higher than temperature preset value, reduce the output current of power supply.
Described input rectifying module 1 is for realizing filtering and the rectification to input power, and input rectifying module 1 after anti-interference device filtering part is disturbed, then is piled rectification by diode bridge by the AC power supplies of input, obtains level and smooth DC power supply; Described output rectification module 3 is for realizing filtering, rectification and the voltage-regulation to out-put supply, described output rectification module 3 is the Switching Power Supply output module that comprises filter circuit, rectification circuit and output control circuit, this output rectification module 3 can by after the transmission of transformer, use diode realize rectification, electric capacity realize the flat ripple of filtering anti-around and common mode inductance realize output and regulate, obtain output voltage and output current that user needs.Fig. 3 is the preferred circuit connection diagram of the one of this routine input rectifying module 1, and in Fig. 3, described anti-interference device comprises thermistor MOV1, capacitor C X1 and resistance (R3, R23) etc. parallel with one another, for realizing the anti-interference filtration to input power; Described diode bridge heap is bridge rectifier diode D1; Fig. 5 is the preferred circuit connection diagram of one of the output rectification module 3 of this example.
Described main control module 2 detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit 201, and realize the control of the power work state to indoor illumination by master control IC chip, the control of power work state is specially to power output and the operating ambient temperature of real-time monitoring indoor illumination, when operating ambient temperature is during higher than temperature preset value, by reducing the output current of power supply, turn down to ensure that by the brightness of indoor illumination its temperature meets normal working range, by the automatic derate control of this power supply to indoor illumination, this example is ensureing on the useful life of indoor illumination and the basis of security performance, can also automatically regulate the power output of indoor illumination, ensure the normal work of indoor illumination with this.Fig. 4 is the preferred circuit connection diagram of the one of this routine main control module 2.
Embodiment 2:
As shown in Figure 1, Figure 2 with shown in Fig. 6, on the basis of embodiment 1, this example also comprises sampling feedback circuit 4 and radiating element, and described sampling feedback circuit 4 is for detection of the operating state of radiating element, and the operating state of radiating element is fed back to main control module 2 to control the power output of power supply.
Described radiating element is arranged in the light fixture of indoor illumination, is used to the operational environment of indoor illumination to dispel the heat, and described radiating element can be fan, can be also the radiating elements such as fin; Described sampling feedback circuit 4 detects the operating state of radiating element in real time, after radiating element breaks down, in time fault message is fed back to main control module 2, main control module 2 receives after the fault message of radiating element, will carry out derate use to indoor illumination, suitably turn down the brightness of indoor illumination, like this, just can after breaking down, radiating element ensure the normal operation of indoor illumination, meanwhile, the problem of also having avoided the operating ambient temperature that makes indoor illumination because of radiating element fault to raise.
The further improvement of this example is, in the time that the operating state of radiating element is fault, reduces the power output of power supply by main control module 2.Reduce the power output of power supply, namely turn down the brightness of indoor illumination, like this, illumination is still normally being carried out, but but can control well the caloric value of indoor illumination; As for the number of power output that reduces power supply, can control according to user-defined setting, or realize automatic control by main control unit according to the relation between operating ambient temperature and power output.
As shown in Figure 6, the further improvement of this example is, described radiating element is fan, described sampling feedback circuit 4 comprises fan-status detecting unit, whether described fan-status detecting unit is by detecting through the electric current of passing through fan and then the operating state of judging fan as normally, if the operating state of fan is fault, fault message is fed back to main control module 2, the power output that described main control module 2 reduces power supply with the operating ambient temperature that ensures indoor illumination not higher than temperature preset value.In Fig. 6, described fan-status detecting unit comprises operational amplifier U2-A, operational amplifier U2-B, resistance R 30, resistance R 36, resistance R 10, capacitor C 11, resistance R 32 and resistance R 27.
The further improvement of this example is, in the time that any one situation appears short circuit, opens circuit and block in leaf in fan, judges that its operating state is as fault, as shown in Figure 6, described fan-status detecting unit comprises optocoupler U3, 1 pin of described optocoupler U3 is connected to the power end of operational amplifier U2-A by resistance R 28 and resistance R 30, 1 pin of described optocoupler U3 is by resistance R 28, resistance R 37, capacitor C 12 and resistance R 31 are connected to the output of operational amplifier U2-A, 2 pins of described optocoupler U3 are by resistance R 39, triode Q2, capacitor C 12 and resistance R 31 are connected to the output of operational amplifier U2-A, 2 pins of described optocoupler U3 are by resistance R 39, triode Q2, capacitor C 12 and resistance R 33 are connected to the output of operational amplifier U2-B, between 1 pin of described optocoupler U3 and 2 pins, be connected with resistance R 38.
The further improvement of this example is, in the time that fan occurs short circuit and opens circuit, the light-emitting diode conducting of optocoupler U3 is luminous, and now, fault message is fed back to main control module 2 by fan-status detecting unit, and then controls power supply and reduce its power output; In the time there is card leaf in fan, if fan inside is provided with self-inspection IC chip, by testing self-inspection IC chip testing no current by predicating fault; If self-inspection IC chip is not with in fan inside, the internal temperature that detects indoor illumination by the temperature detecting unit 201 of main control module 2 is to take a decision as to whether fault.
Fan failure has 3 phenomenons conventionally: short circuit, open circuit and block leaf; Fan short circuit and open circuit obvious with fan normal condition contrast phenomenon, after fan short circuit or opening circuit, can make the light-emitting diode conducting of optocoupler U3 luminous, the fault message of this fan feeds back to the control IC chip of main control module 2 as primary control, before the operating ambient temperature of indoor illumination raises, regulate and control power supply and reduce power output, to ensure the stability of operating ambient temperature, improve useful life and the coefficient of safety of indoor illumination.
The judgement of fan card leaf fault, be divided into two kinds of different fans: first, fan inside carries self-inspection IC chip, detect the chip of fan work state, after appearance card leaf, no current passes through, and then be judged to be fan card leaf, processing mode and fan open circuit quite, the control IC chip that feeds back to main control module 2 by the fault message of this fan is as primary control, the power output of power supply is carried out the regulation and control of derate use before the operating ambient temperature of indoor illumination raises, adopt this fan, testing process is effective fast, to the regulation and control of indoor illumination operating ambient temperature at the right time, make operating ambient temperature stable, second, fan inside is without self-inspection IC chip, adopt prevailing fan, also not obvious through the electric current of passing through fan after appearance card leaf, in this situation, power supply is controlled the output of power supply derate by the temperature detecting unit 201 of main control module 2 inside, adopt this fan, volume is little, and cost is low, also can ensure that the working temperature of indoor illumination can not exceed temperature preset value simultaneously.
Compared with prior art, this routine beneficial effect is, described main control module 2 detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit 201, and realize the control of the power work state to indoor illumination by master control IC chip, when operating ambient temperature is during higher than temperature preset value, meet normal working range by the power output that reduces power supply to ensure its temperature, by the automatic derate control of this power supply to indoor illumination, this example has ensured useful life and the security performance of indoor illumination, simultaneously can also be by automatically regulating the power output of indoor illumination to ensure the normal work of indoor illumination, avoid indoor illumination to extinguish because excess temperature burns out or the drawback of glimmering, on this basis, can also automatically detect by sampling feedback circuit 4 operating state of radiating element, in the time that radiating element breaks down, take in time the primary control to the use of power supply derate, avoid well the operating ambient temperature of indoor illumination to reach the possibility of desired temperature.
Embodiment 3:
On the basis of embodiment 1 or embodiment 2, this routine described temperature preset value is 65 DEG C.In the time that operational environment is no more than 65 DEG C, the operating state of indoor illumination is the most stable, proves after tested the especially indoor illumination of the middle low power below 60W, as the lamp of lying prone below 60W, high, the long service life of operating safety factor under the environment that is no more than 65 DEG C.Certainly, according to different applied environments, temperature preset value is adjustable, and for the indoor illumination of the middle low power below 60W, this routine described temperature preset value is set as 65 DEG C, and effect is best.
The further improvement of this example is, described indoor illumination is the handkerchief lamp of power below 60W.This example is not limited to the lamp of lying prone below 60W, but be preferably the middle low power indoor illumination below 60W, the indoor illumination self-temperature of this middle low power changes fast, and operating ambient temperature is had relatively high expectations, and it is very good that this example is applied in the indoor illumination of the middle low power below 60W effect.
Embodiment 4:
As shown in Figure 4, on the basis of embodiment 1 or embodiment 2, this routine described temperature detecting unit 201 comprises thermistor; Described thermistor and diode are parallel with one another, and are connected between the power supply VCC and enable pin NC of IC chip U5 of main control module 2, and the IC chip U5 of described main control module 2 detects the voltage of thermistor by enable pin NC.
When the operating ambient temperature of power supply is elevated to specified temp, during such as 65 DEG C, if temperature continues to raise, the resistance of thermistor will be reduced to and exceed particular value, the IC chip U5 of main control module 2 by enable pin position NC detect voltage, and by Voltage Feedback to IC chip U5, by IC chip U5 control reduce output current, play and reduce power effect, realize the function that power supply derate is used.
As shown in Figure 5, the further improvement of this example is, described output rectification module 3 comprises the diode D1 of common F level, described diode D1 is in parallel with capacitor C 1 realizes rectification, then by capacitor C 4, capacitor C 3, resistance R 9 and common mode inductance L2 realize the flat ripple of electric capacity anti-around, and then voltage and the electric current of output demand.
This example is also applicable to embodiment 3.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the power control of an indoor illumination, it is characterized in that, comprise: input rectifying module, main control module and output rectification module, described input rectifying module is connected with main control module respectively with output rectification module, described input rectifying module is for realizing filtering and the rectification to input power, described main control module for detection of and control the operating state of the power supply of indoor illumination, described output rectification module is for realizing the filtering to out-put supply, rectification and voltage-regulation, described main control module detects the operating ambient temperature of indoor illumination in real time by temperature detecting unit, when operating ambient temperature is during higher than temperature preset value, reduce the output current of power supply.
2. the power control of indoor illumination according to claim 1, it is characterized in that, also comprise sampling feedback circuit and radiating element, described sampling feedback circuit is for detection of the operating state of radiating element, and the operating state of radiating element is fed back to main control module to control the power output of power supply.
3. the power control of indoor illumination according to claim 2, is characterized in that, in the time that the operating state of radiating element is fault, reduces the power output of power supply by main control module.
4. the power control of indoor illumination according to claim 2, it is characterized in that, described radiating element is fan, described sampling feedback circuit comprises fan-status detecting unit, whether described fan-status detecting unit is by detecting through the electric current of passing through fan and then the operating state of judging fan as normally, if the operating state of fan is fault, fault message is fed back to main control module, the power output that described main control module reduces power supply with the operating ambient temperature that ensures indoor illumination not higher than temperature preset value.
5. the power control of indoor illumination according to claim 4, is characterized in that, in the time that any one situation appears short circuit, opens circuit and block in leaf in fan, judges that its operating state is as fault, described fan-status detecting unit comprises optocoupler U3, 1 pin of described optocoupler U3 is connected to the power end of operational amplifier U2-A by resistance R 28 and resistance R 30, 1 pin of described optocoupler U3 is by resistance R 28, resistance R 37, capacitor C 12 and resistance R 31 are connected to the output of operational amplifier U2-A, 2 pins of described optocoupler U3 are by resistance R 39, triode Q2, capacitor C 12 and resistance R 31 are connected to the output of operational amplifier U2-A, 2 pins of described optocoupler U3 are by resistance R 39, triode Q2, capacitor C 12 and resistance R 33 are connected to the output of operational amplifier U2-B, between 1 pin of described optocoupler U3 and 2 pins, be connected with resistance R 38.
6. the power control of indoor illumination according to claim 5, it is characterized in that, in the time that fan occurs short circuit and opens circuit, the light-emitting diode conducting of optocoupler U3 is luminous, fault message is fed back to main control module by fan-status detecting unit, and then control power supply and reduce its power output; In the time there is card leaf in fan, if fan inside is provided with self-inspection IC chip, by testing self-inspection IC chip testing no current by predicating fault; If self-inspection IC chip is not with in fan inside, the internal temperature that detects indoor illumination by the temperature detecting unit of main control module is to take a decision as to whether fault.
7. according to the power control of the indoor illumination described in claim 1 to 6 any one, it is characterized in that, described temperature preset value is 65 DEG C.
8. according to the power control of the indoor illumination described in claim 1 to 6 any one, it is characterized in that, described indoor illumination is the handkerchief lamp of power below 60W.
9. according to the power control of the indoor illumination described in claim 1 to 6 any one, it is characterized in that, described temperature detecting unit comprises thermistor; Described thermistor and diode are parallel with one another, and are connected between the power supply VCC and enable pin NC of IC chip U5 of main control module; The IC chip U5 of described main control module detects the voltage of thermistor by enable pin NC.
10. the power control of indoor illumination according to claim 9, it is characterized in that, described output rectification module comprises the diode D1 of common F level, described diode D1 is in parallel with capacitor C 1 realizes rectification, then by capacitor C 4, capacitor C 3, resistance R 9 and common mode inductance L2 realize the flat ripple of electric capacity anti-around, and then voltage and the electric current of output demand.
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|---|---|---|---|
| CN201410267064.8A CN104023446B (en) | 2014-06-16 | A kind of power control of indoor illumination |
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| CN201410267064.8A CN104023446B (en) | 2014-06-16 | A kind of power control of indoor illumination |
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| CN104023446B CN104023446B (en) | 2016-11-30 |
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| CN105792471A (en) * | 2014-12-26 | 2016-07-20 | 凹凸电子（武汉）有限公司 | Light source driving circuit, controller and control method |
| CN107489993A (en) * | 2017-09-29 | 2017-12-19 | 江门市创亚照明电器有限公司 | A kind of heat-dissipating casing with tilting fin |
| CN110645552A (en) * | 2019-10-16 | 2020-01-03 | 广州市珠江灯光科技有限公司 | Lamp control method and lamp |
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