CN108112149A - Power supply control apparatus and lamps and lanterns - Google Patents
Power supply control apparatus and lamps and lanterns Download PDFInfo
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- CN108112149A CN108112149A CN201711437414.0A CN201711437414A CN108112149A CN 108112149 A CN108112149 A CN 108112149A CN 201711437414 A CN201711437414 A CN 201711437414A CN 108112149 A CN108112149 A CN 108112149A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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Abstract
The present invention provides a kind of power supply control apparatus and lamps and lanterns, described device, including：Accumulator, energy storage for power supply circuit, control circuit and feedback circuit；The feedback circuit, for exporting the first feedback voltage or the second feedback voltage to the control circuit；The control circuit, is used for：According to first feedback voltage, the energy storage for power supply circuit is controlled to power the accumulator, and the voltage of the accumulator to the load output is met：Light emitting module and other circuits in the load can work normally；According to second feedback voltage, the energy storage for power supply circuit is controlled to power the accumulator, and the voltage of the accumulator to the load output is met：The light emitting module does not shine, but the other parts of the load or whole circuits keep normal work.The present invention realizes the power supply for loading other circuits when not shining.
Description
Technical field
The present invention relates to field of light fittings more particularly to a kind of power supply control apparatus and lamps and lanterns.
Background technology
Lamps and lanterns, it can be understood as luminous utensil is carried out using light source, can have various size, purposes, light source
Type etc..In lamps and lanterns, usually may include power supply circuit and light emitting module, power supply circuit is used to power for light emitting module, in field,
Can be that lamps and lanterns configure other circuits, such as communication module to enrich the function of lamps and lanterns.
In existing correlation technique, power supply control apparatus includes accumulator and energy storage for power supply circuit, when luminous, passes through
Energy storage for power supply circuit controls the charging of accumulator, so that the power supply of its output meets the needs of load, including：
So that the light emitting module normal luminous in load, and when not shining, power supply control apparatus then stops operating.
However, for other circuits such as communication module, when not shining, it may still need to keep work, and power supply control mould
Block can not be that it is effectively powered.
The content of the invention
The present invention provides a kind of power supply control apparatus and lamps and lanterns, can not be logical when not shining to solve power control module
The problem of other circuits such as news module are effectively powered.
According to the first aspect of the invention, a kind of power supply control apparatus is provided, for the load supplying for lamps and lanterns, bag
It includes：Accumulator, energy storage for power supply circuit, control circuit and feedback circuit；The control circuit connects the energy storage for power supply respectively
Circuit and the feedback circuit；The accumulator connects the energy storage for power supply circuit and the load respectively；
The feedback circuit, for exporting the first feedback voltage or the second feedback voltage to the control circuit；
The control circuit, is used for：
According to first feedback voltage, the energy storage for power supply circuit is controlled to power the accumulator, and cause institute
The voltage for stating accumulator to the load output meets：Light emitting module and other circuits in the load can normal works
Make；
According to second feedback voltage, the energy storage for power supply circuit is controlled to power the accumulator, and cause institute
The voltage for stating accumulator to the load output meets：The light emitting module does not shine, but the other parts of the load or
Whole circuits keep normal work.
Optionally, the feedback circuit includes voltage acquisition module, first resistor module and second resistance module；Described
Two resistive modules are serially connected between the first resistor module and ground；
The voltage acquisition module for obtaining basic voltage, and is the first resistor mould using the basic voltage
Block and the second resistance module for power supply；
The control circuit is connected to the first node between the first resistor module and the second resistance module；
The resistance value of the second resistance module is adjustable, when the resistance value of the second resistance module is adjusted to the first resistance value, institute
It states control circuit and collects first feedback voltage from the first node；The resistance value of the second resistance module is adjusted to
During two resistance values, the control circuit collects second feedback voltage from the first node.
Optionally, the second resistance module includes first switch, first resistor unit and second resistance unit；Described
One switch is in parallel with the first resistor unit after connecting with the second resistance unit；
When the first switch is closed, the resistance value of the second resistance module is first resistance value；The first switch
During opening, the resistance value of the second resistance module is second resistance value.
Optionally, the first resistor module includes first resistor, and the first resistor unit includes second resistance, described
Second resistance unit includes 3rd resistor.
Optionally, the energy storage for power supply circuit includes the first winding, diode, 3rd resistor module and second switch；
The cathode of the first end of the accumulator and the diode is connected to section point, the section point connection
External power supply；The second end of the accumulator is connected to the 3rd node with first winding；
The anode of the diode and the first end of first winding are connected to fourth node, the second switch and institute
It is connected to after stating 3rd resistor block coupled in series between the fourth node and ground；
The control terminal of the second switch connects the control circuit, and the control circuit is specifically used for by described in control
The switching frequency of second switch controls the energy storage for power supply circuit to power the accumulator；
The voltage acquisition module includes the second winding, and described second winding one end connects the first resistor module or institute
State second resistance module, other end ground connection；Second winding can obtain the basic voltage from first winding.
Optionally, the accumulator includes output capacitance.
Optionally, the output capacitance is electrolytic capacitor, and the first end of the electrolytic capacitor is anode one end, the electrolysis
The second end of capacitance is cathode one end.
Optionally, first winding and armature winding and secondary windings that second winding is transformer.
Optionally, the control circuit controls the energy storage for power supply circuit to the storage according to second feedback voltage
It is specific to cause during energy circuit power supply：The voltage of the accumulator to the load output meets：The light emitting module is not sent out
Light, but the communication module of the load keeps work.
According to the second aspect of the invention, a kind of lamps and lanterns are provided, the power supply control apparatus being related to including first aspect.
Power supply control apparatus provided by the invention, by the way that the energy storage for power supply circuit is controlled to power the accumulator,
And the voltage of the accumulator to the load output is met：The light emitting module does not shine, but the load its
He keeps normal work by part or all of circuit, realizes the power supply for loading other circuits when not shining, meanwhile, also pass through institute
Feedback circuit is stated, for exporting the first feedback voltage or the second feedback voltage to the control circuit；And according to described first
Feedback voltage so that light emitting module and other circuits in the load can work normally, according to the described second feedback electricity
Pressure so that the light emitting module does not shine, but the other parts of the load or whole circuits keep normal work, and the present invention exists
While meeting different power demands, the free switching of two kinds of power supply process is realized.
In addition, the accumulator of the present invention can still play a role when not shining, accumulator is effectively increased
Utilization rate.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the circuit diagram one of a power supply control apparatus of the invention；
Fig. 2 is the circuit diagram two of a power supply control apparatus of the invention；
Fig. 3 is the circuit diagram three of a power supply control apparatus of the invention；
Fig. 4 is the circuit diagram four of a power supply control apparatus of the invention.
Reference sign：
1- feedback circuits；
11- first resistor modules；
12- second resistance modules；
121- first resistor units；
122- second resistance units；
Q1- first switches；
R1- first resistors；
R2- second resistances；
R3- 3rd resistors；
13- voltage acquisition modules；
2- control circuits；
U1- controls chip；
3- energy storage for power supply circuits；
31- 3rd resistor modules；
The 4th resistance of R4-；
Q2- second switches；
D1- diodes；
L1- transformers；
The first windings of L11-；
The second windings of L12-；
Uac- external power supplies；
4- accumulators；
C1- output capacitances；
5- is loaded.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " " in description and claims of this specification and above-mentioned attached drawing
The (if present)s such as four " are the objects for distinguishing similar, without being used to describe specific order or precedence.It should manage
The data that solution so uses can exchange in the appropriate case, so that the embodiment of the present invention described herein for example can be to remove
Order beyond those for illustrating or describing herein is implemented.In addition, term " comprising " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, production
Product or equipment are not necessarily limited to those steps or unit clearly listed, but may include not list clearly or for this
The intrinsic other steps of processes, method, product or equipment or unit a bit.
Technical scheme is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and may be repeated no more for the same or similar concept or process in some embodiments.
Fig. 1 is the circuit diagram one of a power supply control apparatus of the invention.
It please refers to Fig.1, the power supply control apparatus, for powering for the load 5 of lamps and lanterns, including：Accumulator 4, energy storage
Power supply circuit 3, control circuit 2 and feedback circuit 1.
The control circuit 2 connects the energy storage for power supply circuit 3 and the feedback circuit 1 respectively；The accumulator 4 divides
The energy storage for power supply circuit 3 and the load 5 are not connected.
The feedback circuit 1, for exporting the first feedback voltage or the second feedback voltage to the control circuit.
First feedback voltage and the second feedback voltage, it can be understood as voltage of different sizes can be dynamic change
Voltage rather than refer in particular to single definite voltage value or voltage curve.
The control circuit 2, is used for：
According to first feedback voltage, the energy storage for power supply circuit 3 is controlled to power the accumulator 4, and caused
The voltage of the accumulator 4 to 5 output of load meets：Light emitting module and the equal energy of other circuits in the load 5
Normal work.
Above control process can be in field arbitrarily using accumulator 4 be load 5 power supply schemes, can be according to power supply
The different of circuit 3 select to control process accordingly, can shape between accumulator 4 and energy storage for power supply circuit 3 in specific implementation process
Into different accesses, the switching between the different access can be realized using control circuit 2, to meet accumulator 4
Output demand.
According to second feedback voltage, the energy storage for power supply circuit 3 is controlled to power the accumulator 4, and caused
The voltage of the accumulator 4 to 5 output of load meets：The light emitting module does not shine, but other portions of the load 5
Divide or whole circuits keep normal work.
The process that the realization method of the process is referred to be controlled according to the first feedback voltage understands, due to its satisfaction
Circuit requirements it is different, corresponding, the switching frequency between the different access can be different, so, met
Different demands also are understood as the limitation to the output control of control circuit 2.
By the control according to the second feedback voltage, the present embodiment can be kept when light emitting module does not shine to load 5
Other parts or the power supply of whole circuit so that it keeps work, compared to for, in the prior art, energy storage electricity when not shining
Road 4 is no longer powered, and in one of which existing scheme, another independent accumulator can be used, other circuits are supplied
Electricity which increases the use of power supply apparatus, and in the present embodiment, can be that foundation is powered with existing accumulator 4,
Scheme is relatively easy, can also save the use of power supply apparatus.Meanwhile compared to the accumulator if not shining in the prior art
4 situations about being no longer used, the present embodiment can effectively improve accumulator 4 in the case where using existing accumulator 4
Utilization rate.
Wherein, load 5 other parts or whole circuit can be enumerated including but being also not necessarily limited to following：Communication module is deposited
Memory modules, image capture module, audio collection module, display module and sensor.Wherein, communication module can be enumerated
For bluetooth module, Zigbee module, Wifi modules etc., image capture module can be enumerated as camera, and audio collection module can
To be enumerated as microphone, the display module can be enumerated as display screen, and sensor can be enumerated as sound transducer, distance passes
Sensor, temperature sensor etc..
By taking communication module as an example, the control circuit 2 controls the energy storage for power supply circuit according to second feedback voltage
It is specific to cause when 3 pairs of accumulators 4 are powered：The voltage of the accumulator 4 to 5 output of load meets：The hair
Optical module does not shine, but the communication module of the load keeps work.
Power supply control apparatus provided in this embodiment, by the way that the energy storage for power supply circuit is controlled to supply the accumulator
Electricity, and the voltage of the accumulator to the load output is met：The light emitting module does not shine, but the load
Other parts or whole circuits keep normal work, realize the power supply for loading other circuits when not shining, meanwhile, also pass through
The feedback circuit, for exporting the first feedback voltage or the second feedback voltage to the control circuit；And according to described
One feedback voltage so that light emitting module and other circuits in the load can work normally, according to the described second feedback
Voltage so that the light emitting module does not shine, but the other parts of the load or whole circuits keep normal work, the present invention
While different power demands are met, the free switching of two kinds of power supply process is realized.
In addition, the accumulator of the present invention can still play a role when not shining, accumulator is effectively increased
Utilization rate.
Fig. 2 is the circuit diagram two of a power supply control apparatus of the invention.
It please refers to Fig.2, for further spreading out on the basis of Fig. 1 embodiments, for feedback circuit 1：
The feedback circuit 1 includes voltage acquisition module 13, first resistor module 11 and second resistance module 12；Described
Two resistive modules 12 are serially connected between the first resistor module 11 and ground.
The voltage acquisition module 13 for obtaining basic voltage, and is the first resistor using the basic voltage
Module 11 is powered with the second resistance module 12.Voltage acquisition module 13, which may be employed, can arbitrarily obtain voltage in field, and
Utilize the scheme that the voltage is resistive module power supply.Meanwhile basic voltage can be the voltage that can change, and unspecific voltage
Value.
The control circuit 2 is connected to the first segment between the first resistor module 11 and the second resistance module 12
Point can be the first feedback voltage, or the second feedback voltage for gathering the voltage of first node.
The resistance value of the second resistance module 12 is adjustable, and the resistance value of the second resistance module 12 is adjusted to the first resistance value
When, the control circuit collects first feedback voltage from the first node；The resistance value of the second resistance module 12
When adjusting to the second resistance value, the control circuit 2 collects second feedback voltage from the first node.
Second resistance module 12 can be the adjustable circuit implementations of arbitrary resistance value.Pass through the variation of resistance, Ke Yishi
The variation of existing first node voltage, so that the voltage that control circuit collects changes.
In one of which embodiment, the second resistance module 12 include first switch Q1, first resistor unit 121 with
Second resistance unit 122；The first switch Q1 connect with the second resistance unit 122 after with the first resistor unit
121 is in parallel.Specifically, when the first switch Q1 is closed, the resistance value of the second resistance module 12 is first resistance value；Institute
When stating first switch Q1 openings, the resistance value of the second resistance module 12 is second resistance value.
More than circuit design is based on, when first switch Q1 is closed, the resistance value of second resistance module 12 is first resistor
Unit 121 and the resistance value of 122 generation in parallel of second resistance unit, can correspond to and generate the first feedback voltage；It opens when first
When closing Q1 openings, the resistance value of second resistance module 12 is the resistance value of first resistor unit 121, and second resistance unit 122 is not
Access can correspond to and generate the second feedback voltage.As it can be seen that the first resistance value is less than the second resistance value, so, the first feedback voltage phase
To be less than the second feedback voltage for the voltage ratio that voltage acquisition module 13 is assigned to.
By designing above, the switching between two kinds of resistance values is realized.Under the program, due to not having second resistance list
In the case of member 122, first resistor unit 121 can provide for realizing that light emitting module is normally sent out with first resistor module 11 in itself
The resistance value of light, compared to this, the improvement of embodiment of above is to add second resistance unit 122 and first switch Q1,
The structure of primary circuit is not destroyed.So circuit design workload can be reduced effectively, and be conducive to change to having circuit
Into.
In other alternatives, can also be used such as rheostat, three contacts switch mode, according to three contacts
Switch, may be disposed at the first node, and three of them contact connects first resistor unit, second resistance unit and the respectively
One resistive module, and abandon using first switch Q1.
Fig. 3 is the circuit diagram three of a power supply control apparatus of the invention.
It please refers to Fig.3, for further spreading out on the basis of Fig. 2 embodiments, for energy storage for power supply circuit 3：
The energy storage for power supply circuit 3 includes the first winding L11, diode D1,3rd resistor module 31 and second switch Q2；
The first end of the accumulator 4 and the cathode of the diode D1 are connected to section point, can refer in Fig. 3
The upper end of diode D1；The section point connection external power supply Uac；The second end of the accumulator 4 with described first around
Group L11 is connected to the 3rd node, can refer to the right end of the first winding L11 in Fig. 3.
The anode of the diode D1 and the first end of the first winding L1 are connected to fourth node, can refer to Fig. 3
In the first winding L11 left end；The second switch Q2 is connected to described Section four after connecting with the 3rd resistor module 31
Between point and ground.
The control terminal of the second switch Q2 connects the control circuit 2, and the control circuit 2 is specifically used for passing through control
The switching frequency of the second switch Q2 controls the energy storage for power supply circuit 3 to power the accumulator 4.
By taking circuit shown in Fig. 3 as an example, when second switch Q2 is closed, accumulator 4, the first winding L11, second switch
Access can be formed between Q2,3rd resistor module 31 and ground, when second switch Q2 is opened, accumulator 4, the first winding
Can form access between L11, diode D1 and accumulator 4, so, by the switch change of second switch Q2, it can be achieved that
The different accesses of accumulator 4, by switching between two paths, it can be achieved that the power supply control of accumulator 4.
Specifically it can be understood as：The time that second switch Q2 is closed is longer, and the voltage exported through accumulator 4 is then bigger；
The time that second switch Q2 is closed is shorter, and the voltage exported through accumulator 4 is then smaller.
More than energy storage for power supply circuit 3 is based on, the present embodiment can utilize the first winding L11 of energy storage for power supply circuit 3 to obtain institute
State basic voltage.Wherein, the voltage acquisition module 13 includes the second winding L12, described in the second winding L12 one end connection
First resistor module 11 or the second resistance module 12, other end ground connection, to form supply access；The second winding L12
The basic voltage can be obtained from the first winding L11.The first winding L11 can be with the second winding L12
The armature winding and secondary windings of transformer L1.
As it can be seen that the basic voltage is what the voltage powered according to energy storage for power supply circuit 3 to the accumulator 4 obtained,
It is in ratio to be specifically as follows with the voltage at the first winding L11 both ends.When diode D1 is turned on, the first winding L11 both end voltages
It is identical with 4 both end voltage of accumulator.
In other alternative embodiments, it also can directly generate the basic voltage for meeting demand or self-supported side obtains basis
Voltage, as long as the first feedback voltage caused by enabling triggers the different controls of energy storage for power supply circuit 3 from the second feedback voltage
System, and control result meets two kind power demands of the accumulator 4 to load 5, does not just depart from the spirit of the present invention.
Fig. 4 is the circuit diagram four of a power supply control apparatus of the invention.
It please refers to Fig.4, can be regarded as it as further spreading out on the basis of Fig. 1 embodiments.
For first resistor module 11 therein, it may include first resistor R1, it, also can be by other alternative embodiments
Multiple resistance combine to form first resistor module 11, and wherein resistance can be in parallel, can also connect.
For first resistor unit 121 therein, it may include second resistance R2, second resistance unit 122 therein,
It may include 3rd resistor R3.It is similar with first resistor module 11, in other alternative embodiments, first resistor unit 121 with
Second resistance unit 122 can also be formed by multiple multigroup combinations, and wherein resistance can be in parallel, can also connect.
It please referring to Fig.4,3rd resistor R3 is in parallel with second resistance R2 after connecting with first switch Q1, and the of first resistor R1
One end connects the second winding L1, and the second end of first resistor R1 connects the first end and second resistance of the 3rd resistor R3 respectively
The first end of R2, the first end of the second end connection first switch Q1 of 3rd resistor R3, the second end of first switch Q1 and institute
State the second end ground connection of second resistance R2.
For accumulator 4 therein, it may include output capacitance C1, the both ends of output capacitance C1 connect section point respectively
With the 3rd node.Output capacitance C1 can be electrolytic capacitor, and electrolytic capacitor is one kind of capacitance, metal foil for anode (aluminium or
Tantalum), the oxide-film (aluminium oxide or tantalum pentoxide) that metal is close to anode is dielectric, and cathode is by conductive material, electrolyte
(electrolyte can be liquid or solid) and other materials collectively constitute.
When work is not required in electrolytic capacitor (for example, when light modulation is adjusted and gone out), the voltage of first node is arranged to
One relatively low voltage so that electrolytic capacitor exports low voltage, continues to use to other circuits.
Can be specific chip or physical circuit in addition, control module U1 may be employed in control circuit 2, one of which
In embodiment, in the chip or circuit, the devices such as comparator, subtracter and amplifier can be included, such as can be included
Subtracter and comparator, the first input end connection first node of subtracter, the second input terminal access a reference voltage, subtracter
It is calculated the voltage of first node and the difference of reference voltage, comparator is by difference or the amplified voltage of difference and a difference
Threshold value comparison, and then can high ordinary mail number or LOW signal be exported according to comparative result, to control the opening of second switch Q2 with closing
It closes.Its may be employed circuit mode realize function above, can also be used software mode realization, meanwhile, control logic it is specific
Realize the process that first subtracter calculating is compared again more than being also not necessarily limited to.
Based on different basic voltage acquisition modes, different feedback circuits 1 or different energy storage for power supply circuits 3,
The processing logic of control circuit 2 can also change used by correspondence, and be not limited to listed above.
In specific implementation process, the process of power supply control can be understood as：
When the control terminal input of first switch Q1 is high level, in 3rd resistor R3 access circuits, output voltage is higher,
Meet normal work to use；When the control terminal input of first switch Q1 is low level, 3rd resistor R3 is disconnected, the voltage of output
Relatively low, light emitting module will not be bright, but still has voltage on output capacitance C1, can continue to be supplied to other circuits (such as communication module,
Memory module, image capture module, audio collection module, display module and sensor etc.) work.
The present embodiment additionally provides a kind of lamps and lanterns, including the power supply control apparatus involved by above scheme.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of power supply control apparatus, for the load supplying for lamps and lanterns, which is characterized in that including：Accumulator, energy storage for power supply
Circuit, control circuit and feedback circuit；The control circuit connects the energy storage for power supply circuit and the feedback circuit respectively；Institute
It states accumulator and connects the energy storage for power supply circuit and the load respectively；
The feedback circuit, for exporting the first feedback voltage or the second feedback voltage to the control circuit；
The control circuit, is used for：
According to first feedback voltage, the energy storage for power supply circuit is controlled to power the accumulator, and cause the storage
The voltage of energy circuit to the load output meets：Light emitting module and other circuits in the load can work normally；
According to second feedback voltage, the energy storage for power supply circuit is controlled to power the accumulator, and cause the storage
The voltage of energy circuit to the load output meets：The light emitting module does not shine, but the other parts or whole of the load
Circuit keeps normal work.
2. the apparatus according to claim 1, which is characterized in that the feedback circuit includes voltage acquisition module, the first electricity
Hinder module and second resistance module；The second resistance module is serially connected between the first resistor module and ground；
The voltage acquisition module, for obtaining basic voltage, and using the basic voltage for the first resistor module with
The second resistance module for power supply；
The control circuit is connected to the first node between the first resistor module and the second resistance module；
The resistance value of the second resistance module is adjustable, when the resistance value of the second resistance module is adjusted to the first resistance value, the control
Circuit processed collects first feedback voltage from the first node；The resistance value of the second resistance module is adjusted to the second resistance
During value, the control circuit collects second feedback voltage from the first node.
3. the apparatus of claim 2, which is characterized in that the second resistance module includes first switch, the first electricity
Hinder unit and second resistance unit；The first switch connect with the second resistance unit after with the first resistor unit simultaneously
Connection；
When the first switch is closed, the resistance value of the second resistance module is first resistance value；The first switch is opened
When, the resistance value of the second resistance module is second resistance value.
4. device according to claim 3, which is characterized in that the first resistor module includes first resistor, and described the
One resistance unit includes second resistance, and the second resistance unit includes 3rd resistor.
5. the apparatus of claim 2, which is characterized in that the basic voltage is to described according to energy storage for power supply circuit
What the voltage of accumulator power supply obtained.
6. according to claim 2 to 5 any one of them device, which is characterized in that further include：The energy storage for power supply circuit includes
First winding, diode, 3rd resistor module and second switch；
The cathode of the first end of the accumulator and the diode is connected to section point, and the section point connection is external
Power supply；The second end of the accumulator is connected to the 3rd node with first winding；
The first end of the anode of the diode and first winding is connected to fourth node, the second switch and described the
It is connected to after the series connection of three resistive modules between the fourth node and ground；
The control terminal of the second switch connects the control circuit, and the control circuit is specifically used for by controlling described second
The switching frequency of switch controls the energy storage for power supply circuit to power the accumulator；
The voltage acquisition module includes the second winding, and described second winding one end connects the first resistor module or described the
Two resistive modules, other end ground connection；Second winding can obtain the basic voltage from first winding.
7. device according to any one of claims 1 to 5, which is characterized in that the accumulator includes output capacitance.
8. device according to claim 7, which is characterized in that the output capacitance be electrolytic capacitor, the electrolytic capacitor
First end for anode one end, the second end of the electrolytic capacitor is cathode one end.
9. device according to any one of claims 1 to 5, which is characterized in that the control circuit is anti-according to described second
Feedthrough voltage, when controlling the energy storage for power supply circuit to power the accumulator, it is specific so that：The accumulator is born to described
The voltage for carrying output meets：The light emitting module does not shine, but the communication module of the load keeps work.
10. a kind of lamps and lanterns, which is characterized in that including claim 1 to 9 any one of them power supply control apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711437414.0A CN108112149B (en) | 2017-12-26 | 2017-12-26 | Power supply control device and lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711437414.0A CN108112149B (en) | 2017-12-26 | 2017-12-26 | Power supply control device and lamp |
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| CN108112149A true CN108112149A (en) | 2018-06-01 |
| CN108112149B CN108112149B (en) | 2023-07-07 |
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| CN201711437414.0A Active CN108112149B (en) | 2017-12-26 | 2017-12-26 | Power supply control device and lamp |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108112149B (en) | 2023-07-07 |
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