CN207706482U - One kind turning circuit for lamp and a kind of charger - Google Patents
One kind turning circuit for lamp and a kind of charger Download PDFInfo
- Publication number
- CN207706482U CN207706482U CN201721732393.0U CN201721732393U CN207706482U CN 207706482 U CN207706482 U CN 207706482U CN 201721732393 U CN201721732393 U CN 201721732393U CN 207706482 U CN207706482 U CN 207706482U
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- lamp
- resistance
- turn
- circuit
- triode
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses one kind turning circuit for lamp, can be divided by the first divider resistance and the second divider resistance so that the base stage of triode obtains suitable conducting voltage and turn-on transistor, first turn of lamp driver constitute circuit, and first turn of lamp is bright；And when triode does not turn on, second turn of lamp is bright.It can be seen that, this, which turns circuit for lamp, can utilize the on state characteristic of triode, it realizes in the prior art using the function of turning circuit for lamp of control chip controls, it is equivalent to using triode, the first divider resistance and the second divider resistance instead of the existing control chip turned in circuit for lamp, and the hardware cost of triode and resistance is well below the hardware cost of control chip, therefore, this hardware cost for turning circuit for lamp can be reduced effectively.In addition, the invention also discloses a kind of charger, due to charger include turn circuit for lamp be specially it is provided by the utility model turn circuit for lamp, hardware cost can also be reduced effectively.
Description
Technical field
The utility model is related to electronic technology field, more particularly to one kind turning circuit for lamp and a kind of charger.
Background technology
Turn lamp to be usually used in prompting the current working status of user's device, it, then can be by turning such as with the charger for turning lamp
The current working status of light on and off prompt user's charger of lamp, promotes user experience.
Fig. 1 is the circuit diagram of prior art transfer circuit for lamp.As shown in Figure 1, being internally provided with currently, turning circuit for lamp and using
The control chip 10 of comparator controls, and circuit is complex.Turn circuit for lamp using the prior art, regulation resistance R can be passed through
Resistance value control control chip 10 1 foot voltage, when control chip 10 1 foot voltage be higher than reference voltage V det when, control core
10 internal comparator output end of piece, 5 foot exports low level, and first turn of lamp D1 circuit just constitutes circuit, and first turn of lamp D1 is bright.Work as control
When 1 foot voltage of coremaking piece 10 is less than reference voltage V det, the high electricity of 5 foot of output end output of control 10 internal comparator of chip
It puts down, first turn of lamp D1 service interruption, second turn of lamp D2 is bright.Since the hardware cost of control chip 10 is higher, so, existing
Turning circuit for lamp using the control control of chip 10 in technology can cause the hardware cost for turning circuit for lamp also higher.Moreover, existing
Turn in circuit for lamp, can only be adjusted by resistance R by the electric current of regulation resistance R, adjustable range is also smaller.
Therefore, how to reduce that turn the hardware cost of circuit for lamp be that those skilled in the art need the technology solved to ask at present
Topic.
Utility model content
The purpose of this utility model is to provide one kind and turning circuit for lamp and a kind of charger, can effectively reduce the hard of itself
Part cost.
In order to solve the above-mentioned technical problem, one kind provided by the utility model turns circuit for lamp, including first turn of lamp, second turn
Lamp, protective resistance, the first regulation resistance and the second regulation resistance, the anode of the anode of first turn of lamp and second turn of lamp
It is connect with power end by the protective resistance, second turn of lamp is adjusted by first regulation resistance and described second
The first end of resistance connects, the second end ground connection of second regulation resistance, and it further includes triode, the first partial pressure that this, which turns circuit for lamp,
Resistance and the second divider resistance；
The cathode of first turn of lamp is grounded by the triode, and the base stage of the triode is electric with the first partial pressure simultaneously
The first end of resistance is connected with the second end of second divider resistance, and the second end of first divider resistance is adjusted with described second
The first end connection of economize on electricity resistance, the first end of second divider resistance are connect with the power end.
Preferably, the triode is specially NPN type triode；
Then corresponding, the cathode of first turn of lamp is specially by triode ground connection：The moon of first turn of lamp
Pole is connect with the collector of the NPN type triode, the emitter ground connection of the NPN type triode.
Preferably, the triode is specially PNP type triode；
Then corresponding, the cathode of first turn of lamp is specially by triode ground connection：The moon of first turn of lamp
Pole is connect with the emitter of the PNP type triode, the grounded collector of the PNP type triode.
Preferably, first divider resistance is specially the first swept resistance；
Then corresponding, the first end or second end of first divider resistance are specially the sliding of first swept resistance
End.
Preferably, second divider resistance is specially the second swept resistance；
Then corresponding, the first end or second end of second divider resistance are specially the sliding of second swept resistance
End.
Preferably, second regulation resistance is specially third swept resistance；
Then corresponding, the first end or second end of second regulation resistance are specially the sliding of the third swept resistance
End.
In order to solve the above-mentioned technical problem, a kind of charger that the utility model also provides, including charger body, it is described
The circuit for lamp that turns in charger body is specially any of the above-described kind and turns circuit for lamp.
In terms of existing technologies, provided by the utility model to turn circuit for lamp, the first divider resistance and can be passed through
Two divider resistances divide so that the base stage of triode obtains suitable conducting voltage and turn-on transistor, first turn of lamp driver structure
At circuit, first turn of lamp is bright；And when triode does not turn on, second turn of lamp is bright.As it can be seen that this, which turns circuit for lamp, can utilize triode
On state characteristic, realize in the prior art using the function of turning circuit for lamp of control chip controls, be equivalent to using triode, the
One divider resistance and the second divider resistance instead of the existing control chip turned in circuit for lamp, and the hardware of triode and resistance at
This is well below the hardware cost of control chip, and therefore, this hardware cost for turning circuit for lamp can be reduced effectively.In addition,
Since the first divider resistance and the second divider resistance can also play the role of adjusting the electric current by the second regulation resistance, so
It can further be promoted by the adjustable range of the electric current of the second regulation resistance.In addition, the utility model additionally provides one
Kind of charger, due to the charger include turn circuit for lamp be specially it is provided by the utility model turn circuit for lamp, hardware
Cost can also be reduced effectively.
Description of the drawings
In order to illustrate more clearly of the utility model embodiment, letter will be done to attached drawing needed in the embodiment below
Single introduction, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, general for this field
For logical technical staff, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the circuit diagram of prior art transfer circuit for lamp；
Fig. 2 is a kind of circuit diagram turning circuit for lamp that the utility model embodiment provides；
Fig. 3 is a kind of structural schematic diagram for charger that the utility model embodiment provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than all real
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art under the premise of not making the creative labor,
The all other embodiment obtained, belongs to scope of protection of the utility model.
The purpose of this utility model is to provide one kind and turning circuit for lamp and a kind of charger, can effectively reduce the hard of itself
Part cost.
In order to make those skilled in the art be better understood from technical solutions of the utility model, below in conjunction with the accompanying drawings and specifically
The utility model is described in further detail for embodiment.
Fig. 2 is a kind of circuit diagram turning circuit for lamp that the utility model embodiment provides.As shown in Fig. 2, the present embodiment carries
The circuit for lamp that turns supplied includes first turn of lamp LED1, second turn of lamp LED2, protective resistance R1, the adjustings of the first regulation resistance R2 and second
The anode of resistance R3, first turn of lamp LED1 and the anode of second turn of lamp LED2 pass through protective resistance R1 and power end VCC and connect
It connects, the cathode of second turn of lamp LED2 is connect by the first regulation resistance R2 with the first end of the second regulation resistance R3, and second is adjusted
The second end of resistance R3 is grounded, and it further includes triode Q1, the first divider resistance R4 and the second divider resistance R5 that this, which turns circuit for lamp,；
The cathode of first turn of lamp LED1 is grounded by triode Q1, the base stage of triode Q1 simultaneously with the first divider resistance R4
First end connected with the second end of the second divider resistance R5, the second end of the first divider resistance R4 and the second regulation resistance R3's
First end connects, and the first end of the second divider resistance R5 is connect with power end VCC.
It should be noted that the selection of the first divider resistance R4 and the second divider resistance R5 will ensure to adjust when by second
When the electric current of resistance R3 is more than preset value, the voltage of the common end of the first divider resistance R4 and the second divider resistance R5 can make three
Pole pipe Q1 is switched on.The selection of second regulation resistance R3 should ensure that power is in 1W or more when turning circuit for lamp normal work.
In addition, in practical applications, protective resistance R1, the first regulation resistance R2, the second regulation resistance R3, the first divider resistance R4 and
The specific resistance value that two divider resistance R5 are selected, should be also arranged, the utility model does not limit according to actual needs.
When being less than preset value by the electric current of the second regulation resistance R3, the first divider resistance R4 and the second divider resistance
The voltage of the common ends R5 can also be less than the conducting voltage of triode Q1 therewith, in this way, the cut-off of triode Q1, passes through triode Q1
The circuit of first turn of lamp LED1 of ground connection can not be connected, and first turn of lamp LED1 can not be lit, holding OFF state, and second
Turning lamp LED2, then energy is sufficient, can be lit；When being more than preset value by the electric current of the second regulation resistance R3, the first partial pressure
The public terminal voltage of resistance R4 and the second divider resistance R5 can also be increased above the conducting voltage of triode Q1, triode therewith
Q1 is switched on, and is also switched on by the circuit of triode Q1 first turn of lamp LED1 being grounded, and first turn of lamp LED1 is lit, and the
Then energy is insufficient by two turns of lamp LED2, can not be lit.
It is provided in this embodiment to turn circuit for lamp, it can be divided by the first divider resistance and the second divider resistance so that three
The base stage of pole pipe obtains suitable conducting voltage and turn-on transistor, first turn of lamp driver constitute circuit, and first turn of lamp is bright；And work as
When triode does not turn on, second turn of lamp is bright.As it can be seen that this, which turns circuit for lamp, can utilize the on state characteristic of triode, existing skill is realized
Using the function of turning circuit for lamp of control chip controls in art, it is equivalent to using triode, the first divider resistance and the second partial pressure
Resistance is instead of the existing control chip turned in circuit for lamp, and the hardware cost of triode and resistance is well below control chip
Hardware cost, therefore, this hardware cost for turning circuit for lamp can be reduced effectively.In addition, due to the first divider resistance and
Two divider resistances can also play the role of adjusting the electric current by the second regulation resistance, so passing through the electricity of the second regulation resistance
The adjustable range of stream can be promoted further.
In order to enable those skilled in the art to be better understood from the technical solution of the utility model, below lamp will be turned
For circuit is applied in charger, it is described in detail.
If applying the circuit for lamp provided in this embodiment that turns in charger, charging equipment is charged using the charger,
Then charging equipment start to charge up it is fully charged before, charging current is larger, and is more than preset value, the first divider resistance R4 and the
The public terminal voltage of two divider resistance R5 can be more than the conducting voltage of triode Q1, triode Q1 conductings, if second turn of lamp
LED1 is red light, then when red at this time；And when charging equipment is soon filled, charging current can be gradually reduced, until to filling
Electric equipment is fully charged, and charging current is less than preset value, the public terminal voltage meeting of the first divider resistance R4 and the second divider resistance R5
Less than the conducting voltage of triode Q1, triode Q1 cut-offs, if second turn of lamp LED2 is green light, green light at this time.
Wherein, charging current is the electric current by the second regulation resistance R3.
It is, of course, understood that first turn of lamp LED1 is red light, second turn of lamp LED2 is green light, by way of example only
It can turn circuit for lamp using this in charger, without referring to that first turn of lamp LED1 is only red light, second turn of lamp LED2 can only
For green light.First turn of lamp LED1 and second turn of lamp LED2 can also turn lamp for other colors, and the utility model does not limit
It is fixed.
It being preferably carried out mode as one kind, triode Q1 is specially NPN type triode；It is then corresponding, first turn of lamp
The cathode of LED1 is grounded by triode Q1：The collector connection of the cathode and NPN type triode of first turn of lamp LED1,
The emitter of NPN type triode is grounded.
It being preferably carried out mode as one kind, triode Q1 is specially PNP type triode；It is then corresponding, first turn of lamp
The cathode of LED1 is grounded by triode Q1：The emitter connection of the cathode and PNP type triode of first turn of lamp LED1,
The grounded collector of PNP type triode.
In order to which the first divider resistance R4 and the voltage of the second common ends divider resistance R5 can be flexibly adjustable, as a kind of excellent
Selection of land embodiment, the first divider resistance R4 are specially the first swept resistance；It is then corresponding, the first end of the first divider resistance R4
Or second end is specially the sliding end of the first swept resistance.
Similarly, it being preferably carried out mode as one kind, the second divider resistance R5 is specially the second swept resistance；Then correspond to
, the first end or second end of the second divider resistance are specially the sliding end of the second swept resistance.
In order to further increase the adjustable range of the electric current by the second regulation resistance R3, as one kind side of being preferably carried out
Formula, the second regulation resistance R3 are specially third swept resistance；It is then corresponding, first end or the second end tool of the second regulation resistance R3
Body is the sliding end of third swept resistance.
It should be noted that the first swept resistance, the second swept resistance and third swept resistance are swept resistance, institute
It is intended merely to distinguish multiple sliding electricity to be referred to as the first swept resistance, the second swept resistance and third swept resistance
Resistance, has no other particular meanings.
The circuit for lamp provided by the utility model that turns is described in detail above, the utility model additionally provides a kind of packet
Any of the above-described kind of charger for turning circuit for lamp is included, the embodiment of charger part is corresponding with the embodiment for turning circuit for lamp part,
Can mutual reference, will not be described in great detail when hereafter the embodiment of charger part being described identical with circuit for lamp part is turned
Content.
Fig. 3 is a kind of structural schematic diagram for charger that the utility model embodiment provides.As shown in figure 3, the present embodiment
The charger of offer includes charger body 30, and the circuit for lamp 300 that turns in charger body 30 specially turns lamp for any of the above-described kind
Circuit.
Turn circuit for lamp since charger provided in this embodiment includes any of the above-described kind, and any of the above-described kind turns circuit for lamp
Hardware cost all be far below the hardware cost in the prior art for turning circuit for lamp, therefore, charger provided in this embodiment it is hard
Part cost can also be reduced effectively.Further it will be understood that charger provided in this embodiment equally has the utility model
Any other beneficial effects for turning circuit for lamp provided, repeats no more herein.
Circuit for lamp is turned to one kind provided by the utility model above and a kind of charger is described in detail.Specification
In each embodiment described by the way of progressive, it is difference with other embodiments that each embodiment, which stresses,
Just to refer each other for identical similar portion between each embodiment.
It should be pointed out that for those skilled in the art, before not departing from the utility model principle
It puts, several improvements and modifications can be made to this utility model, these improvement and modification also fall into the utility model right
It is required that protection domain in.
It should also be noted that, in the present specification, such as first and second etc relational terms are used merely to one
A entity is either operated either to operate with another entity and be distinguished without necessarily requiring or implying these entities or behaviour
There are any actual relationship or orders between work.Moreover, the terms "include", "comprise" or its any variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of element includes not only that
A little elements, but also include the other elements being not explicitly listed, further include either for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
Claims (7)
1. one kind turning circuit for lamp, including first turn of lamp, second turn of lamp, protective resistance, the first regulation resistance and the second regulation resistance,
The anode of the anode of first turn of lamp and second turn of lamp is connect by the protective resistance with power end, and described second
Turn lamp to connect with the first end of second regulation resistance by first regulation resistance, which is characterized in that described second adjusts
The second end ground connection of economize on electricity resistance, the circuit for lamp that turns further includes triode, the first divider resistance and the second divider resistance；
The cathode of first turn of lamp is grounded by the triode, the base stage of the triode simultaneously with the first divider resistance
First end is connected with the second end of second divider resistance, and the second end of first divider resistance adjusts electricity with described second
The first end of resistance connects, and the first end of second divider resistance is connect with the power end.
2. according to claim 1 turn circuit for lamp, which is characterized in that the triode is specially NPN type triode；
Then corresponding, the cathode of first turn of lamp is specially by triode ground connection：The cathode of first turn of lamp with
The collector of the NPN type triode connects, the emitter ground connection of the NPN type triode.
3. according to claim 1 turn circuit for lamp, which is characterized in that the triode is specially PNP type triode；
Then corresponding, the cathode of first turn of lamp is specially by triode ground connection：The cathode of first turn of lamp with
The emitter of the PNP type triode connects, the grounded collector of the PNP type triode.
4. turning circuit for lamp according to claim 1-3 any one of them, which is characterized in that first divider resistance is specially
One swept resistance；
Then corresponding, the first end or second end of first divider resistance are specially the sliding end of first swept resistance.
5. according to claim 4 turn circuit for lamp, which is characterized in that second divider resistance is specially the second sliding electricity
Resistance；
Then corresponding, the first end or second end of second divider resistance are specially the sliding end of second swept resistance.
6. turning circuit for lamp according to claim 1-3 any one of them, which is characterized in that second regulation resistance is specially
Three swept resistances；
Then corresponding, the first end or second end of second regulation resistance are specially the sliding end of the third swept resistance.
7. a kind of charger, including charger body, which is characterized in that the circuit for lamp that turns in the charger body is specially such as
Claim 1-6 any one of them turns circuit for lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732393.0U CN207706482U (en) | 2017-12-11 | 2017-12-11 | One kind turning circuit for lamp and a kind of charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732393.0U CN207706482U (en) | 2017-12-11 | 2017-12-11 | One kind turning circuit for lamp and a kind of charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207706482U true CN207706482U (en) | 2018-08-07 |
Family
ID=63026008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732393.0U Active CN207706482U (en) | 2017-12-11 | 2017-12-11 | One kind turning circuit for lamp and a kind of charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207706482U (en) |
-
2017
- 2017-12-11 CN CN201721732393.0U patent/CN207706482U/en active Active
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