CN204089289U - A kind of charger indicator light display circuit - Google Patents
A kind of charger indicator light display circuit Download PDFInfo
- Publication number
- CN204089289U CN204089289U CN201420589726.9U CN201420589726U CN204089289U CN 204089289 U CN204089289 U CN 204089289U CN 201420589726 U CN201420589726 U CN 201420589726U CN 204089289 U CN204089289 U CN 204089289U
- Authority
- CN
- China
- Prior art keywords
- unit
- indicator light
- current
- reset
- charger
- 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.)
- Expired - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of charger indicator light display circuit, comprise in the charge circuit, comprise a set timing unit, with at least one reset timer, at least one current detecting unit, the display unit of at least one, described set timing unit is connected to the set end of display driver unit and the start end of reset timer, described reset timer concatenation operation device, described arithmetic unit is connected with current detecting unit, the input of described current detecting unit connects current measuring element, described display unit be a LED light.Charger can be made to represent current charging current in real time by the fluorescent lifetime of light-emitting diode, and then make charging person predict the charging interval by ampere-hour.
Description
Technical field
The utility model relates to a kind of charger indicator light display circuit.
Background technology
Along with popularizing of smart mobile phone, mobile phone has become the important tool of people from daily life to commercial activity, smart mobile phone is larger for the demand of power consumption, causing people to need regular is mobile phone charging, particularly some can not change battery volume mobile phone, but due to current charger for mobile phone, directly can not indicate and need the charging interval, mobile phone is also without relevant deixis, for very inconvenient daily hasty business people, and the charger that some illegal businessman pretends to be the charging interval short through the charger that conventional charging realizes length is sold, buyer can not verify the charging interval of charger then and there, in addition, because people can not predict the time that mobile phone charges, often there is a lot of mobile phone by the phenomenon overcharged.
Size due to charging current directly determines the time being full of mobile phone, and indicates the basic employing digital-scroll technique of charging current, gauge outfit to indicate the size of charging current at present.Be subject in many mouthfuls of chargers of volume or installation site restriction at some, the analog quantity of these low precision uses digital-scroll technique and pointer gauge all to seem large and expensive.
Summary of the invention
The utility model provides a kind of charger indicator light display circuit, charger can be made to represent current charging current in real time by the fluorescent lifetime of light-emitting diode, and then make charging person predict the charging interval by ampere-hour.
The utility model is realized by following technological means:
A kind of charger indicator light display circuit, comprise in the charge circuit, it comprises a set timing unit, with at least one reset timer, at least one current detecting unit, the display unit of at least one, described set timing unit is connected to the set end of display driver unit and the start end of reset timer, described reset timer concatenation operation device, described arithmetic unit is connected with current detecting unit, the input of described current detecting unit connects current measuring element, described display unit be a LED light.
Wherein, described display unit is light-emitting diode, and the fluorescent lifetime of described light-emitting diode is controlled by reset timing unit.
Wherein, the timing range of described set timing unit is 1-3 second.
Wherein, described indicating circuit comprises indicator light driver element, set timing unit, reset timing unit, arithmetic unit and current acquisition unit, described set timing unit cycle set indicator light driver element, and the enabling signal of reset timing unit is provided, the RESET input of indicator light driver element connects the output of reset timing unit, and the output of the input concatenation operation device of reset timing unit, the input of arithmetic unit connect the output of current acquisition unit; The output of described indicator light driver element connects the LED of display unit; The output current of charger sample resistance of described current acquisition unit.
By above technological means, many mouthfuls of chargers can be made can to indicate the size of charging current on the situation Xia Mei road of limited volume and lower cost, and then make charger user estimate the charging interval by the concept of ampere-hour, such as within the time that one-period is 3 seconds, lamp continues to light and indicates that 3 Ampere currents flow through, light to extinguish for 1 second and within 2 seconds, represent 1 Ampere currents and flow through, light to extinguish for 2 seconds and within 1 second, represent 2 Ampere currents and flow through ..., eternal loop cycle display.
Accompanying drawing explanation
Fig. 1 is indicating circuit one schematic diagram;
Fig. 2 is indicating circuit two schematic diagram.
Embodiment
Below with reference to accompanying drawing, embodiment of the present utility model is described in detail.
Charger indicator light display circuit as shown in Figure 1, it comprises a set timing unit 2, with at least one reset timer 4, the current detecting unit 6 of at least one, the display unit of at least one, described set timing unit 2 is connected to the set end of display driver unit 3 and the start end of reset timer 4, described reset timer 4 concatenation operation device 5, described arithmetic unit 5 is connected with current detecting unit 6, the input of described current detecting unit 6 connects current measuring element, described display unit be a LED light, namely the light-emitting diode in figure, the input of described current acquisition unit connects current sampling resistor Rs.
The timing range of described set timing unit is 1-3 second, and preferably timing 2 seconds interval scale charging currents are 2A, and during timing 1 second, representing charging current is 1A.Namely set timing 2 can with 2 seconds for loop cycle drives display driver unit 3 to light LED.Current detecting unit 6 collects the current data on sample resistance RS, delivers to arithmetic unit 5 and is multiplied by a coefficient, and coefficient is the maximum number of set timing 2 Preset Times (second)/collection; Arithmetic unit 5 send reset timer 4 to reset timing, and the numerical value that reset timer 4 is sent here according to arithmetic unit 5 is as timing length (second), and the time is to just closedown display driver unit 3.
Set timing 2 is while timing starts to open display driver unit 3, also reset timer 4 can be started, set timing 2 starts display driver unit 3 and lights LED, and reset timer 4, according to the large minor change timing length of image data, is timed to rear cut out display driver unit 3 and extinguishes LES.Thus realization bright light duration represents the size of charging current.
In simple terms, when light-emitting diode continuous illumination 2 seconds iterative cycles, representing charging current is 2A, when the Light-Emitting Diode continuous illumination time be 1 second and iterative cycles time, representing charging current is 1A.
Above charger charging circuit, by this display circuit additional, make that charger is very little in cost increase, small product size almost constant, achieve charging current Presentation Function, make user in good time the performance of electrolytic charger and the charging interval needed for charging equipment, person's work easy to use and life.
The technical scheme of the utility model being carried out to simple change gained is also contained within the scope of the utility model protection, does not enumerate at this.
Claims (4)
1. a charger indicator light display circuit, comprises in the charge circuit; It is characterized in that: it comprises a set timing unit, with at least one reset timer, at least one current detecting unit, the display unit of at least one, described set timing unit is connected to the set end of display driver unit and the start end of reset timer, described reset timer concatenation operation device, described arithmetic unit is connected with current detecting unit, the input of described current detecting unit connects current measuring element, described display unit be a LED light.
2. charger indicator light display circuit according to claim 1, it is characterized in that: described display unit is light-emitting diode, the fluorescent lifetime of described light-emitting diode is controlled by reset timing unit.
3. charger indicator light display circuit according to claim 2, is characterized in that: the timing range of described set timing unit is 1-3 second.
4. charger indicator light display circuit according to claim 1, it is characterized in that: described indicating circuit comprises indicator light driver element, set timing unit, reset timing unit, arithmetic unit and current acquisition unit, described set timing unit cycle set indicator light driver element, and the enabling signal of reset timing unit is provided, the RESET input of indicator light driver element connects the output of reset timing unit, and the output of the input concatenation operation device of reset timing unit, the input of arithmetic unit connect the output of current acquisition unit; The output of described indicator light driver element connects the LED of display unit; The output current of charger sample resistance of described current acquisition unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589726.9U CN204089289U (en) | 2014-10-13 | 2014-10-13 | A kind of charger indicator light display circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589726.9U CN204089289U (en) | 2014-10-13 | 2014-10-13 | A kind of charger indicator light display circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089289U true CN204089289U (en) | 2015-01-07 |
Family
ID=52181960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420589726.9U Expired - Lifetime CN204089289U (en) | 2014-10-13 | 2014-10-13 | A kind of charger indicator light display circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089289U (en) |
-
2014
- 2014-10-13 CN CN201420589726.9U patent/CN204089289U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205610259U (en) | Cell -phone charger with automatic timer function of cutting off power supply | |
| CN204177861U (en) | A kind of precisely numerical monitor ac millivoltmeter | |
| CN204014187U (en) | A kind of desk lamp with wireless charger | |
| CN204089289U (en) | A kind of charger indicator light display circuit | |
| CN205141732U (en) | Intelligent charging type knapsack | |
| US9836030B2 (en) | Portable electronic device | |
| CN208062816U (en) | Watch, mobile power supply device and watch assembly with mobile power supply device | |
| CN202095157U (en) | Control circuit of charging indicating light and cell phone with same | |
| CN207049671U (en) | A kind of positioning terminal using flashlight as carrier | |
| CN202904242U (en) | Novel watch | |
| CN205960725U (en) | Take overcharge protection's charging indication circuit | |
| CN205901403U (en) | Cell -phone charger with remind function | |
| CN203386081U (en) | USB heating circuit of mosquito-repellent incense liquid heater | |
| CN205753488U (en) | A kind of can with distinct device be assembled into one use portable power source device | |
| CN202471927U (en) | Energy metering and indicating device for electric vehicle battery pack | |
| CN206389141U (en) | A kind of portable charged LED flashlight lamp based on automobile mounted charger | |
| CN204290362U (en) | Portable multifunctional charging device | |
| CN207798934U (en) | A kind of test pencil | |
| CN100482153C (en) | Electric defensive type motion conditioned response instrument | |
| CN206523563U (en) | It is a kind of to measure the manual megohmmeter of rotating speed | |
| CN201954270U (en) | Flashlight with tape | |
| CN203407766U (en) | Simple chair with reminding function | |
| CN215499661U (en) | Control circuit of charger pilot lamp | |
| CN204359849U (en) | A kind of multifunctional motorcycle battery voltage detector | |
| CN204902824U (en) | Simple and easy height above sea level tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |