CN107820344A - Emergent module - Google Patents

Emergent module Download PDF

Info

Publication number
CN107820344A
CN107820344A CN201711019878.XA CN201711019878A CN107820344A CN 107820344 A CN107820344 A CN 107820344A CN 201711019878 A CN201711019878 A CN 201711019878A CN 107820344 A CN107820344 A CN 107820344A
Authority
CN
China
Prior art keywords
voltage
output voltage
constant
module
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711019878.XA
Other languages
Chinese (zh)
Other versions
CN107820344B (en
Inventor
郑碧洪
吴群民
王炳生
许衍圭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Yankon Energetic Lighting Co Ltd
Original Assignee
Xiamen Yankon Energetic Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Yankon Energetic Lighting Co Ltd filed Critical Xiamen Yankon Energetic Lighting Co Ltd
Priority to CN201711019878.XA priority Critical patent/CN107820344B/en
Priority to DE202018100405.0U priority patent/DE202018100405U1/en
Publication of CN107820344A publication Critical patent/CN107820344A/en
Application granted granted Critical
Publication of CN107820344B publication Critical patent/CN107820344B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

The invention provides a kind of emergent module, including constant pressure module, constant flow module, first comparator, the second comparator;Power supply unit sends high level to constant pressure module, the baseband signal of constant pressure module and the comparison signal of first comparator relatively and send the conversion of the conversion ratio of input voltage that electric signal control power supply unit provides and output voltage, the value of output voltage is reached the magnitude of voltage of pre-set constant;The comparison signal of the baseband signal of constant flow module and the second comparator is relatively and sending electric signal control input electric current makes input current constant;Constant output voltage enters constant flow module, and the input current of constant flow module is constant, so constant flow module input power is constant, i.e. constant flow module power output is constant.Can solve the problems, such as that LED module load is single using the technical program, make full use of limited resources, realize and save the energy.

Description

Emergent module
Technical field
The present invention relates to a kind of field of emergency lighting, in particular to a kind of emergent module.
Background technology
LED application is more and more extensive, is also just increasingly being popularized for daily indoor and outdoor lighting LED lamp. In the circuit of LED lamp, although LED power consumption is little, require provided power supply required electric current, voltage in certain limit Inside keep relative stability, while require there is certain excessively stream, overvoltage protection effect to LED.
Many electrical equipments are equipped with standby emergency power supply, so that when extraneous supply of electric power is lost, electricity consumption is set It is standby to be remained in operation with non-firm power.All many-sides all need to use emergence lighting lamp in life, such as:Corridor stair, warehouse.
In the prior art, it is constant current output typically by such emergent module sets, output voltage range can be caused to be limited System, then the load of access is also restricted therewith.If load number or connection in series-parallel connected mode change, it is necessary to weight New power supply newly developed, this is easy for causing the wasting of resources, is unfavorable for environmental protection.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, there is provided a kind of emergent module, by setting work( Rate is constant so that output voltage range is unrestricted, solves the problems, such as that LED module load is single, makes full use of limited resources, real Now save the energy.
In order to solve the above-mentioned technical problem, the invention provides a kind of emergent module, including a constant pressure module, a constant current mould Block, a first comparator, one second comparator;The constant pressure module be connected to a power supply unit and the first comparator it Between;The constant flow module is connected between the constant pressure module and second comparator;
The power supply unit sends high level to the constant pressure module, the baseband signal of the constant pressure module and described the The comparison signal of one comparator relatively and sends input voltage and output voltage that electric signal controls the power supply unit to provide Conversion ratio conversion, the value of output voltage is reached the magnitude of voltage of pre-set constant;
The comparison signal of the baseband signal of the constant flow module and second comparator relatively and sends electric signal control Input current makes input current constant;
One end of output voltage is output voltage terminal, and output voltage terminal connects the constant flow module, constant output voltage Into the constant flow module, the input current of the constant flow module, power and power output are constant;
The constant flow module connects a charging device, and charging device connection load is defeated with the voltage adjustment according to needed for load Go out voltage and electric current.
In a preferred embodiment, the first comparator connects output voltage terminal;When the size of output voltage occurs Change, the voltage synchronous of the first comparator change;The comparison signal of the constant-voltage equipment is specially the first benchmark electricity Pressure value, the comparison signal of the first comparator are specially the magnitude of voltage of the first comparator;The constant pressure module passes through base The comparative result of quasi- voltage and the voltage of the first comparator sends the conversion of electric signal control input voltage and output voltage The conversion of ratio.
In a preferred embodiment, the constant pressure module is specially the first chip U5;First chip U5 first port The Pin3 connections power supply unit;First chip U5 second port Pin5 sends turn of control input voltage and output voltage Change than electric signal;First chip U5 the 3rd port Pin2 is provided with the first reference voltage and connects the first comparator.
In a preferred embodiment, second port Pin5 is connected between the power supply unit and output voltage terminal; Input voltage and changing for output voltage are compared into 1-D1, and D1 is the first chip U5 conducting dutycycle;Second port Pin5 is sent Different duty signal changes the conversion of input voltage and output voltage ratio;The conversion formula of input voltage and output voltage is
VO=VIN/(1-D1)
Wherein, VOFor output voltage, VINFor input voltage.
In a preferred embodiment, a first switch is provided between second port Pin5 and output voltage terminal;Input Voltage forms output voltage by the conversion of input voltage and output voltage than conversion;
If the value of output voltage reaches the value of predeterminated voltage, the first switch is opened, output voltage terminal output voltage; If the value of output voltage is not reaching to preset voltage value, the first switch is closed, and output voltage terminal does not have voltage output.
In a preferred embodiment, the first comparator is specially the first comparison resistance R36;The first switch tool Body is the first diode D9;
When output voltage is less than preset voltage value, the magnitude of voltage on the first comparison resistance R36 is less than the first reference voltage value, First diode D9 is not turned on, and output voltage terminal does not have voltage output;Second port Pin5 outputs conducting dutycycle D1 is increased to Certain value, output voltage is set to reach preset voltage value by conversion formula;
When output voltage is equal to preset voltage value, the first comparison resistance R36 magnitude of voltage is equal to the first reference voltage value, the One diode D9 is turned on, output voltage terminal output preset voltage value;
When output voltage is higher than preset voltage value, the magnitude of voltage in the first comparison voltage is more than the first reference voltage value, and Two-port netwerk Pin5 outputs conducting dutycycle D is reduced to certain value, output voltage is reached preset voltage value by conversion formula.
In a preferred embodiment, the constant flow module is the second chip U6;Input current flows into input current end;The Two chip U6 the 4th port Pin1 connection output voltage terminals and input current end and transmission duty cycle signals control input electric current Size;Between the second comparator connection output voltage terminal and input current end;The baseband signal of the constant flow module is specific For the second reference voltage value;Second chip U6 fifth port Pin6 be provided with the second reference voltage and with second comparator Connection.
In a preferred embodiment, second comparator is the parallel resistance that two resistance R37, R38 are composed in parallel Comparison means;Output voltage terminal inputs preset voltage value to the second chip U6, and input current flows into parallel resistance comparison means, and two The comparison information that voltage difference is the second comparator is formed between individual resistance R37, R38 in parallel, is made with the second reference voltage value Compare;
It is less than the second reference voltage value, the 4th port Pin1 when forming voltage difference between two resistance R37, R38 in parallel The duty cycle signals D2 of transmission is increased to certain value, input current is reached pre-set current value;
It is more than the second reference voltage value, the 4th port Pin1 when forming voltage difference between two resistance R37, R38 in parallel The duty cycle signals D2 of transmission is reduced to certain value, input current is reached pre-set current value.
In a preferred embodiment, in addition to an overvoltage protective module;The overvoltage protective module is opened including one second Close, one the 3rd switch;The second switch is connected between input current end and the 3rd switch, the 3rd switch connection Between the second switch and the second chip U6 the 6th port Pin4;When output voltage is too high, the second switch Open, the 3rd switch is opened, and the 6th port Pin4 level signal is pulled low, and output voltage reduces.
In a preferred embodiment, the second switch is voltage-regulator diode ZD1, and the 3rd switch is triode Q7;The negative pole connection input current end of the voltage-regulator diode ZD1, positive pole connecting triode Q7 base stage;Triode Q7 collection Electrode connects the 6th port Pin4;When output voltage is too high, the breakdown conductings of voltage-regulator diode ZD1, triode Q7 base stages High level signal conducting is received, the 6th port Pin4 level signals are pulled low, and the 4th port Pin1 stops output duty cycle signal D2, reduce output voltage.
Compared to prior art, technical scheme possesses following beneficial effect:
Present design ensures the constant of input power by setting the constant of voltage and electric current, and due to same core The efficiency of piece is constant, that is, is determined that power output is constant.In emergent module in actual use, if adjustment load number or Adjust the connection in series-parallel connected mode of load, then the output voltage of emergent module just changes, emergent mould provided by the invention Group can adjust output voltage by voltage according to needed for load, and electric current is adjusted therewith, is applicable various different situations.Realize an electricity Source module is applicable polymorphic type load, is sufficiently used limited resource, realizes energy-conservation and resource rational utilization.Overvoltage is set to protect Module is protected, guarantee does not damage circuit because output voltage is excessive.
Brief description of the drawings
Fig. 1 is constant pressure portion circuit theory diagrams in the preferred embodiment of the present invention;
Fig. 2 is constant current partial circuit schematic diagram in the preferred embodiment of the present invention;
Fig. 3 is product appearance schematic diagram in the preferred embodiment of the present invention.
Constant pressure module 1, first comparator 2, first switch 3, constant flow module 4, the second comparator 5, second switch the 6, the 3rd Switch 7, diffuser 8, main body 9, light emitting module 10, emergent module 11.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
A kind of emergent module, including a constant pressure module, a constant flow module, a first comparator, one second comparator;It is described Constant pressure module is connected between a power supply unit and the first comparator;The constant flow module is connected to the constant pressure module Between second comparator;
The power supply unit sends high level to the constant pressure module, the baseband signal of the constant pressure module and described the The comparison signal of one comparator relatively and sends input voltage and output voltage that electric signal controls the power supply unit to provide Conversion ratio conversion, the value of output voltage is reached the magnitude of voltage of pre-set constant;
The comparison signal of the baseband signal of the constant flow module and second comparator relatively and sends electric signal control Input current makes input current constant;
One end of output voltage is output voltage terminal, and output voltage terminal connects the constant flow module, constant output voltage Into the constant flow module, the input current of the constant flow module, power and power output are constant;
The constant flow module connects a charging device, and charging device connection load is defeated with the voltage adjustment according to needed for load Go out voltage and electric current.
The first comparator connects output voltage terminal;When the size of output voltage changes, the first comparator Voltage synchronous change;The comparison signal of the constant-voltage equipment is specially the first reference voltage value, the first comparator Comparison signal be specially the first comparator magnitude of voltage;The constant pressure module is by reference voltage compared with described first The comparative result of the voltage of device sends the conversion of the conversion ratio of electric signal control input voltage and output voltage.
With reference to figure 1 and Fig. 3, the constant pressure module 1 is specially the first chip U5;First chip U5 first port Pin3 connects Connect the power supply unit;First chip U5 second port Pin5 sends the conversion ratio of control input voltage and output voltage Electric signal;First chip U5 the 3rd port Pin2 is provided with the first reference voltage and connects the first comparator 2.
Second port Pin5 is connected between the power supply unit and output voltage terminal;Input voltage and output voltage Ratio is changed as 1-D1, D1 is the first chip U5 conducting dutycycle;Second port Pin5 sends different duty signal to change The conversion ratio of input voltage and output voltage;The conversion formula of input voltage and output voltage is
VO=VIN/(1-D1)
Wherein, VOFor output voltage, VINFor input voltage.
A first switch 3 is provided between second port Pin5 and output voltage terminal;Input voltage by input voltage with The conversion of output voltage forms output voltage than conversion;
If the value of output voltage reaches the value of predeterminated voltage, the first switch 3 is opened, output voltage terminal output electricity Pressure;If the value of output voltage is not reaching to preset voltage value, the first switch 3 is closed, and output voltage terminal does not have voltage defeated Go out.
The first comparator 2 is specially the first comparison resistance R36;The first switch 3 is specially the first diode D9;
When output voltage is less than preset voltage value, the magnitude of voltage on the first comparison resistance R36 is less than the first reference voltage value, First diode D9 is not turned on, and output voltage terminal does not have voltage output;Second port Pin5 outputs conducting dutycycle D1 is increased to Certain value, output voltage is set to reach preset voltage value by conversion formula;
When output voltage is equal to preset voltage value, the first comparison resistance R36 magnitude of voltage is equal to the first reference voltage value, the One diode D9 is turned on, output voltage terminal output preset voltage value;
When output voltage is higher than preset voltage value, the magnitude of voltage in the first comparison voltage is more than the first reference voltage value, and Two-port netwerk Pin5 output conducting dutycycle D be reduced to certain value, make output voltage by conversion formula reach preset voltage value i.e.+ 6V is simultaneously powered by output voltage terminal to constant flow module.
With reference to figure 2, the constant flow module 4 is the second chip U6;Input current flows into input current end;Second chip U6's 4th port Pin1 connection output voltage terminals and input current end and transmission duty cycle signals control input size of current;Described Two comparators 5 are connected between output voltage terminal and input current end;The baseband signal of the constant flow module 4 is specially the second benchmark Magnitude of voltage;Second chip U6 fifth port Pin6 is provided with the second reference voltage and is connected with second comparator.
Second comparator 5 is the parallel resistance comparison means that two resistance R37, R38 are composed in parallel;Output voltage terminal Input preset voltage value to the second chip U6, input current and flow into parallel resistance comparison means, two resistance R37, R38 in parallel Between formed voltage difference be the second comparator 5 comparison information, made comparisons with the second reference voltage value;
It is less than the second reference voltage value, the 4th port Pin1 when forming voltage difference between two resistance R37, R38 in parallel The duty cycle signals D2 of transmission is increased to certain value, input current is reached pre-set current value;
It is more than the second reference voltage value, the 4th port Pin1 when forming voltage difference between two resistance R37, R38 in parallel The duty cycle signals D2 of transmission is reduced to certain value, input current is reached pre-set current value.
Output voltage terminal exports constant voltage to the second chip U6, and constant current is inputted to the second chip, therefore input work Rate is constant;Again because the efficiency of same chip is identical, power output is constant.When the 4th port Pin1 sends high level signal When, inductance L3 starts energy storage;When the 4th port Pin1 sends low level signal, inductance L3 starts to discharge.So after energy storage Inductance L3 can just meet within the specific limits load the needs of, emergent module 11 provided by the invention can provide voltage range+ Voltage in 6V to+55V.Realize that a power supply module is applicable polymorphic type load, be sufficiently used limited resource, realize section Energy and resource rational utilization.
In order to which protection circuit is not damaged because voltage is much, emergent module 11 provided by the invention also includes an overvoltage protection Module;The overvoltage protective module includes the switch of second switch the 6, the 3rd 7;The second switch 6 be connected to input current end with Between 3rd switch 7, the 3rd switch 7 is connected to the second switch 6 and the second chip U6 the 6th port Between Pin4;When output voltage is too high, the second switch 6 is opened, and the 3rd switch 7 is opened, the 6th port Pin4 electricity Ordinary mail number is pulled low, and output voltage reduces.
The second switch 6 is specially voltage-regulator diode ZD1, and the 3rd switch 7 is triode Q7;The pole of voltage stabilizing two Pipe ZD1 negative pole connection input current end, positive pole connecting triode Q7 base stage;Triode Q7 colelctor electrode connects the 6th port Pin4;When output voltage is too high, the breakdown conductings of voltage-regulator diode ZD1, triode Q7 base stages receive high level signal and led Logical, the 6th port Pin4 level signals are pulled low, and the 4th port Pin1 stops output duty cycle signal D2, makes output voltage drop It is low.
With reference to figure 3, the preferred embodiment of module 11 of meeting an urgent need, the schematic appearance of structural product is formed, is that the one of light fixture is real Apply the exploded isometric schematic diagram of example.Light fixture includes diffuser 8, main body 9, light emitting module 10 and emergent module 11, diffuser 8 and master Body 9 is bonded to each other, and the light emitting module 10 is electrically connected to each other and is arranged in main body 9 with the emergent module 11.
The foregoing is only a preferred embodiment of the present invention, but the present invention design concept be not limited thereto, Any one skilled in the art the invention discloses technical scope in, using this design to the present invention carry out it is non- Substantial change, belong to invade the behavior of the scope of the present invention.

Claims (10)

1. a kind of emergent module, it is characterised in that including a constant pressure module, a constant flow module, a first comparator, one second ratio Compared with device;The constant pressure module is connected between a power supply unit and the first comparator;The constant flow module is connected to institute State between constant pressure module and second comparator;
The power supply unit sends high level to the constant pressure module, the baseband signal of the constant pressure module and the described first ratio Comparison signal compared with device relatively and sends electric signal and controls turning for input voltage that the power supply unit provides and output voltage Change than conversion, the value of output voltage is reached the magnitude of voltage of pre-set constant;
The comparison signal of the baseband signal of the constant flow module and second comparator relatively and sends electric signal control input Electric current makes input current constant;
One end of output voltage is output voltage terminal, and output voltage terminal connects the constant flow module, and constant output voltage enters The constant flow module, the input current of the constant flow module, power and power output are constant;
The constant flow module connects a charging device, charging device connection load, with the voltage adjustment output electricity according to needed for load Pressure and electric current.
2. emergent module according to claim 1, it is characterised in that the first comparator connects output voltage terminal;When The size of output voltage changes, and the voltage synchronous of the first comparator changes;The comparison letter of the constant-voltage equipment Number be specially the first reference voltage value, the comparison signal of the first comparator is specially the magnitude of voltage of the first comparator; The constant pressure module sends electric signal control input electricity by the comparative result of reference voltage and the voltage of the first comparator Pressure and the conversion of the conversion ratio of output voltage.
3. emergent module according to claim 2, it is characterised in that the constant pressure module is specially the first chip U5;The The one chip U5 first port Pin3 connections power supply unit;First chip U5 second port Pin5 sends control input The electric signal of the conversion ratio of voltage and output voltage;First chip U5 the 3rd port Pin2 is provided with the first reference voltage and connected The first comparator.
4. emergent module according to claim 3, it is characterised in that second port Pin5 is connected to the power supply unit Between output voltage terminal;Input voltage and changing for output voltage are compared into 1-D1, and D1 is the first chip U5 conducting dutycycle; Second port Pin5 sends different duty signal to change the conversion of input voltage and output voltage ratio;Input voltage and output The conversion formula of voltage is
VO=VIN/(1-D1)
Wherein, VOFor output voltage, VINFor input voltage.
5. emergent module according to claim 4, it is characterised in that set between second port Pin5 and output voltage terminal There is a first switch;Input voltage forms output voltage by the conversion of input voltage and output voltage than conversion;
If the value of output voltage reaches the value of predeterminated voltage, the first switch is opened, output voltage terminal output voltage;It is if defeated The value for going out voltage is not reaching to preset voltage value, then the first switch is closed, and output voltage terminal does not have voltage output.
6. emergent module according to claim 5, it is characterised in that the first comparator is specially the first comparison resistance R36;The first switch is specially the first diode D9;
When output voltage is less than preset voltage value, the magnitude of voltage on the first comparison resistance R36 is less than the first reference voltage value, and first Diode D9 is not turned on, and output voltage terminal does not have voltage output;Second port Pin5 outputs conducting dutycycle D1 is increased to necessarily Value, makes output voltage reach preset voltage value by conversion formula;
When output voltage is equal to preset voltage value, the first comparison resistance R36 magnitude of voltage is equal to the first reference voltage value, and the one or two Pole pipe D9 is turned on, output voltage terminal output preset voltage value;
When output voltage is higher than preset voltage value, the magnitude of voltage in the first comparison voltage is more than the first reference voltage value, the second end Mouth Pin5 outputs conducting dutycycle D is reduced to certain value, output voltage is reached preset voltage value by conversion formula.
7. emergent module according to claim 1, it is characterised in that the constant flow module is the second chip U6;Input electricity Stream flows into input current end;Second chip U6 the 4th port Pin1 connection output voltage terminals and input current end and transmission duty Than signal control input size of current;Between the second comparator connection output voltage terminal and input current end;The constant current The baseband signal of module is specially the second reference voltage value;Second chip U6 fifth port Pin6 is provided with the second reference voltage And it is connected with second comparator.
8. emergent module according to claim 7, it is characterised in that second comparator is two resistance R37, R38 The parallel resistance comparison means composed in parallel;Output voltage terminal inputs preset voltage value to the second chip U6, input current and flowed into Parallel resistance comparison means, the comparison information that voltage difference is the second comparator is formed between two resistance R37, R38 in parallel, Made comparisons with the second reference voltage value;
It is less than the second reference voltage value when forming voltage difference between two resistance R37, R38 in parallel, the 4th port Pin1 is sent Duty cycle signals D2 be increased to certain value, input current is reached pre-set current value;
It is more than the second reference voltage value when forming voltage difference between two resistance R37, R38 in parallel, the 4th port Pin1 is sent Duty cycle signals D2 be reduced to certain value, input current is reached pre-set current value.
9. emergent module according to claim 1, it is characterised in that also including an overvoltage protective module;The overvoltage protection Module includes a second switch, one the 3rd switch;The second switch is connected between input current end and the 3rd switch, 3rd switch is connected between the second switch and the second chip U6 the 6th port Pin4;When output voltage mistake Height, the second switch are opened, and the 3rd switch is opened, and the 6th port Pin4 level signal is pulled low, output voltage drop It is low.
10. emergent module according to claim 8 or claim 9, it is characterised in that the second switch is voltage-regulator diode ZD1, 3rd switch is triode Q7;The negative pole connection input current end of the voltage-regulator diode ZD1, positive pole connecting triode Q7 Base stage;Triode Q7 colelctor electrode connects the 6th port Pin4;When output voltage is too high, the voltage-regulator diode ZD1 is hit Perforating is logical, and triode Q7 base stages receive high level signal conducting, and the 6th port Pin4 level signals are pulled low, the 4th port Pin1 Stop output duty cycle signal D2, reduce output voltage.
CN201711019878.XA 2017-10-27 2017-10-27 Emergency module Active CN107820344B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201711019878.XA CN107820344B (en) 2017-10-27 2017-10-27 Emergency module
DE202018100405.0U DE202018100405U1 (en) 2017-10-27 2018-01-24 emergency module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711019878.XA CN107820344B (en) 2017-10-27 2017-10-27 Emergency module

Publications (2)

Publication Number Publication Date
CN107820344A true CN107820344A (en) 2018-03-20
CN107820344B CN107820344B (en) 2024-04-23

Family

ID=61604318

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711019878.XA Active CN107820344B (en) 2017-10-27 2017-10-27 Emergency module

Country Status (1)

Country Link
CN (1) CN107820344B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196623A (en) * 1981-05-28 1982-12-02 Toshiba Corp Output controlling circuit
CN102186289A (en) * 2011-04-18 2011-09-14 广东科立盈光电技术有限公司 LED (Light Emitting Diode) driving power supply
US20120126713A1 (en) * 2010-11-24 2012-05-24 Mamoru Horino Led driving apparatus
CN102791055A (en) * 2011-05-18 2012-11-21 西安阿普莱特光电科技有限公司 Constant light of switch power supply maintaining lamp and with power feedback
CN103096560A (en) * 2011-10-31 2013-05-08 英飞特电子(杭州)股份有限公司 Light-emitted diode (LED) actuator
CN105592590A (en) * 2016-01-05 2016-05-18 茂硕电源科技股份有限公司 Constant-power LED driving power supply circuit system
CN106787749A (en) * 2016-12-15 2017-05-31 广州市花都区广尔中电子厂 A kind of constant pressure and flow Switching Power Supply
CN106851922A (en) * 2017-03-27 2017-06-13 深圳市明微电子股份有限公司 A kind of linear Constant-power LED drive circuit, chip and constant-current LED control system
CN207491249U (en) * 2017-10-27 2018-06-12 厦门阳光恩耐照明有限公司 Emergent module

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196623A (en) * 1981-05-28 1982-12-02 Toshiba Corp Output controlling circuit
US20120126713A1 (en) * 2010-11-24 2012-05-24 Mamoru Horino Led driving apparatus
CN102186289A (en) * 2011-04-18 2011-09-14 广东科立盈光电技术有限公司 LED (Light Emitting Diode) driving power supply
CN102791055A (en) * 2011-05-18 2012-11-21 西安阿普莱特光电科技有限公司 Constant light of switch power supply maintaining lamp and with power feedback
CN103096560A (en) * 2011-10-31 2013-05-08 英飞特电子(杭州)股份有限公司 Light-emitted diode (LED) actuator
CN105592590A (en) * 2016-01-05 2016-05-18 茂硕电源科技股份有限公司 Constant-power LED driving power supply circuit system
CN106787749A (en) * 2016-12-15 2017-05-31 广州市花都区广尔中电子厂 A kind of constant pressure and flow Switching Power Supply
CN106851922A (en) * 2017-03-27 2017-06-13 深圳市明微电子股份有限公司 A kind of linear Constant-power LED drive circuit, chip and constant-current LED control system
CN207491249U (en) * 2017-10-27 2018-06-12 厦门阳光恩耐照明有限公司 Emergent module

Also Published As

Publication number Publication date
CN107820344B (en) 2024-04-23

Similar Documents

Publication Publication Date Title
CN206336142U (en) Battery management system
CN202872411U (en) Intelligent mobile power supply
CN203872416U (en) Intelligent illuminating emergency lamp
CN103269105B (en) Certainly the control multivoltage output system of stand-by power supply
CN201093232Y (en) LED electric lamp circuit
CN204497835U (en) A kind of PoE switch of uninterrupted power supply
CN203588107U (en) Heavy-current linear constant-current power supply with automatic voltage regulation function
CN207491249U (en) Emergent module
CN206272903U (en) A kind of LED linear constant-current circuit for having output short circuit protection function
CN107820344A (en) Emergent module
CN106535418A (en) LED drive chip and drive circuit
CN206461398U (en) A kind of special type three-state switch in battery anode end
CN204906812U (en) Compatible low pressure and permanent power output's of high pressure input LED circuit
CN202798115U (en) Automatic switching control circuit of alternating current power supply and direct current battery backup power supply
CN202435643U (en) Light emitting diode (LED) lamp
CN204733422U (en) A kind of Solar lamp system
CN108183546A (en) A kind of electrical construction direct current safety power supply
CN208955920U (en) A kind of intelligence control system power supply buses multiple groups output reset switch power circuit
CN203907859U (en) Photovoltaic air conditioning system
CN207623823U (en) A kind of DC-stabilized circuit
CN203827210U (en) Wide-voltage-input-type large-power intrinsically-safe power supply
CN105188211A (en) Light-emitting diode (LED) circuit compatible with low-voltage and high-voltage input and constant-power output
CN203261057U (en) Novel numerical control charger
CN203120220U (en) Led power source
CN104852426A (en) Solar-based smart watch charging base

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant