CN105953115A - Brightness-adjustable flashlight - Google Patents
Brightness-adjustable flashlight Download PDFInfo
- Publication number
- CN105953115A CN105953115A CN201610338783.3A CN201610338783A CN105953115A CN 105953115 A CN105953115 A CN 105953115A CN 201610338783 A CN201610338783 A CN 201610338783A CN 105953115 A CN105953115 A CN 105953115A
- Authority
- CN
- China
- Prior art keywords
- brightness
- circuit
- flashlight
- resistance
- electrical connected
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a brightness-adjustable flashlight. The brightness-adjustable flashlight comprises a flashlight body and a bulb holder. The bulb holder is mounted at the top end of the flashlight body. A power switch, a charging hole and a light-modulation knob are arranged on the flashlight body. The flashlight body internally comprises a charging circuit, a lithium battery and a discharging circuit. The bulb holder comprises an LED lamp. The charging hole, the charging circuit, the lithium battery, the discharging circuit and the LED lamp are sequentially and electrically connected. The power source switch is used for controlling connection and disconnection of the discharging circuit. The discharging circuit is composed of a PWM wave generation circuit and an LED lamp drive circuit. The light-modulation knob is used for adjusting the duty ratio of PWM waves output by the PWM wave generation circuit. The brightness-adjustable flashlight is simple in structure and convenient to use and is provided with the light-modulation knob, the brightness can be adjusted according to the requirements, electric energy is saved, the single-charge usage time of the brightness-adjustable flashlight is prolonged, and the total service life of the brightness-adjustable flashlight is prolonged.
Description
Technical field
The present invention relates to pocket lamp technical field, be specially a kind of adjustable pocket lamp of brightness.
Background technology
Torch is called for short torch, is a kind of hand-held electronic illuminations, applies widely in daily life, but
Pocket lamp currently on the market is the most all constant brightness, even if there being some can regulate brightness, is also lighted by change
The number of bulb realizes, and adjustable extent is limited, but when people use, it is sometimes desirable to light is strong, it is sometimes desirable to
Light is more weak, and this kind of pocket lamp just cannot meet the demand of people, so existing pocket lamp is further improved.
Summary of the invention
Present invention aims to above-mentioned the deficiencies in the prior art, it is provided that a kind of adjustable pocket lamp of brightness.
The technical scheme is that and be achieved in that: a kind of adjustable pocket lamp of brightness, including flashlight body and lamp holder, institute
State lamp holder and be arranged on the top of flashlight main body, described flashlight main body is provided with on and off switch, charging hole and light-control knob, described
Include inside flashlight body that charging circuit, lithium battery and discharge circuit, described lamp holder include LED, described charging hole, fill
Electricity circuit, lithium battery, discharge circuit and LED are electrical connected successively, and described on and off switch is connected on discharge circuit and lithium battery
Between, it is that discharge circuit is powered in order to control lithium battery.
Preferably, described discharge circuit includes PWM wave generation circuit, LED lamp drive circuit and drive end；Described PWM ripple is sent out
Raw circuit includes that pwm signal outfan, described LED lamp drive circuit include controlling end, input and outfan；Described PWM
Signal output part is electrical connected with controlling end, and described input is electrical connected with LED negative pole, and described LED positive pole connects power supply
Positive pole, described output head grounding.
Preferably, described PWM wave generation circuit include the first resistance, the second resistance, the 3rd resistance, potentiometer, polar capacitor,
Diode and 555 chips, described first resistance one terminates positive source, and one fixing end of the other end and potentiometer is electrical connected,
Described potentiometer is adjustable end and diode cathode are all electrical connected with 555 chip the 7th pins, another fixing end of described potentiometer,
Second resistance one end and diode cathode are all electrical connected with 555 chip the 2nd pins, described 555 chip the 2nd pins and 555
Chip the 6th pin is electrical connected, and described second resistance other end level positive with polar capacitor is electrical connected, described polar capacitor negative pole
With 555 chip the 1st equal ground connection of pin, described 555 chip the 2nd pins connect pwm signal outfan.
Preferably, described light-control knob is fixedly mounted on potentiometer, in order to regulator potentiometer resistance.
Compared with prior art, the invention has the beneficial effects as follows: present configuration is simple, easy to use, is provided with light-control knob,
Brightness, not only saves energy can be regulated as required, and add the use time after single charge and total service life.
Accompanying drawing explanation
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but is not intended that any limit to the present invention
System.
Fig. 1 is present configuration schematic diagram；
Fig. 2 is principle of the invention figure；
Fig. 3 is discharge circuit circuit diagram.
In figure: 1, flashlight body, 11, on and off switch, 12, charging hole, 13, light-control knob, 14, charging circuit, 15,
Lithium battery, 16, discharge circuit, 161, PWM wave generation circuit, 162, LED lamp drive circuit, 2, lamp holder, 21, LED
Lamp；
R1, the first resistance, R2, the second resistance, R3, the 3rd resistance, RP, potentiometer, C1, polar capacitor, D1 diode,
U1,555 chips.
Detailed description of the invention
Referring to Fig. 1-3, the present invention provides a kind of technical scheme: a kind of adjustable pocket lamp of brightness, including flashlight body 1
With lamp holder 2, described lamp holder 2 is arranged on the top of flashlight main body 1, described flashlight main body 1 is provided with on and off switch 11, fills
Electricity hole 12 and light-control knob 13, described flashlight body 1 is internal includes charging circuit 14, lithium battery 15 and discharge circuit 16,
Described lamp holder 2 includes LED 21, described charging hole 12, charging circuit 14, lithium battery 15, discharge circuit 16 and LED
21 are electrical connected successively, and described on and off switch 11 is connected between discharge circuit 16 and lithium battery 15, in order to control lithium battery
15 power for discharge circuit 16.Described discharge circuit 16 includes PWM wave generation circuit 161, LED lamp drive circuit 162 and
Drive end；Described PWM wave generation circuit 161 includes that pwm signal outfan, described LED lamp drive circuit 162 include controlling
End, input and outfan；Described pwm signal outfan is electrical connected with controlling end, described input and LED 21 negative pole
Being electrical connected, described LED 21 positive pole meets positive source VCC, described output head grounding GND.
Described PWM wave generation circuit includes the first resistance R1, the second resistance R2, the 3rd resistance R3, potentiometer RP, polarity electricity
Hold C1, diode D1 and 555 chip U1, described first resistance R1 mono-terminate positive source VCC, the other end and potentiometer RP
One fixing end is electrical connected, and the described adjustable end of potentiometer RP and diode D1 positive pole are all electrical with 555 chip U1 the 7th pins
Be connected, another fixing end of described potentiometer RP, second resistance R2 one end and diode D1 negative pole all with 555 chip U1 the 2nd
Pin is electrical connected, and described 555 chip U1 the 2nd pins and 555 chip U1 the 6th pins are electrical connected, described second resistance
R2 other end level positive with polar capacitor C1 is electrical connected, described property electric capacity negative pole C1 and 555 chip U1 the 1st equal ground connection of pin,
Described 555 chip U1 the 2nd pins connect pwm signal outfan.Described light-control knob 13 is fixedly mounted on potentiometer RP, uses
With regulator potentiometer RP resistance.
Embodiment provided above is the better embodiment of the present invention, is only used for the convenient explanation present invention, not appoints the present invention
What pro forma restriction, has usually intellectual, if without departing from the carried technical characteristic of the present invention in any art
In the range of, utilize disclosed technology contents to be made the Equivalent embodiments that local is changed or modified, and without departing from the present invention
Technical characteristic content, all still fall within the range of the technology of the present invention feature.
Claims (4)
1. the adjustable pocket lamp of brightness, including flashlight body and lamp holder, described lamp holder is arranged on the top of flashlight main body,
It is characterized in that, described flashlight main body is provided with on and off switch, charging hole and light-control knob, the internal bag of described flashlight body
Including charging circuit, lithium battery and discharge circuit, described lamp holder includes LED, described charging hole, charging circuit, lithium battery,
Discharge circuit and LED are electrical connected successively, and described on and off switch is connected between discharge circuit and lithium battery, in order to control lithium
Battery is that discharge circuit is powered.
A kind of adjustable pocket lamp of brightness the most according to claim 1, it is characterised in that described discharge circuit includes PWM
Wave generation circuit, LED lamp drive circuit and drive end；Described PWM wave generation circuit includes pwm signal outfan, described LED
Lamp drive circuit includes controlling end, input and outfan；Described pwm signal outfan is electrical connected with controlling end, described defeated
Entering end to be electrical connected with LED negative pole, described LED positive pole connects positive source, described output head grounding.
A kind of adjustable pocket lamp of brightness the most according to claim 1 and 2, it is characterised in that described PWM ripple occurs electricity
Road includes the first resistance, the second resistance, the 3rd resistance, potentiometer, polar capacitor, diode and 555 chips, described first
Resistance one terminates positive source, and one fixing end of the other end and potentiometer is electrical connected, and described potentiometer is adjustable end and diode are just
The most all being electrical connected with 555 chip the 7th pins, another fixing end of described potentiometer, second resistance one end and diode cathode are equal
Being electrical connected with 555 chip the 2nd pins, described 555 chip the 2nd pins and 555 chip the 6th pins are electrical connected, described
Second resistance other end level positive with polar capacitor is electrical connected, described polar capacitor negative pole and 555 chip the 1st equal ground connection of pin,
Described 555 chip the 2nd pins connect pwm signal outfan.
4. according to the adjustable pocket lamp of a kind of brightness described in claim 1 or 3, it is characterised in that described light-control knob is fixed
It is arranged on potentiometer, in order to regulator potentiometer resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338783.3A CN105953115A (en) | 2016-05-20 | 2016-05-20 | Brightness-adjustable flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338783.3A CN105953115A (en) | 2016-05-20 | 2016-05-20 | Brightness-adjustable flashlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105953115A true CN105953115A (en) | 2016-09-21 |
Family
ID=56909302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610338783.3A Pending CN105953115A (en) | 2016-05-20 | 2016-05-20 | Brightness-adjustable flashlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105953115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714377A (en) * | 2016-12-29 | 2017-05-24 | 歌尔科技有限公司 | LED (Light Emitting Diode) lamp driving circuit and LED lamp |
| CN110519880A (en) * | 2019-07-15 | 2019-11-29 | 深圳和而泰小家电智能科技有限公司 | LED light source brightness control method, device, circuit, LED lamp and storage medium |
-
2016
- 2016-05-20 CN CN201610338783.3A patent/CN105953115A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714377A (en) * | 2016-12-29 | 2017-05-24 | 歌尔科技有限公司 | LED (Light Emitting Diode) lamp driving circuit and LED lamp |
| CN106714377B (en) * | 2016-12-29 | 2018-06-12 | 歌尔科技有限公司 | A kind of LED lamp driving circuit and LED lamp |
| CN110519880A (en) * | 2019-07-15 | 2019-11-29 | 深圳和而泰小家电智能科技有限公司 | LED light source brightness control method, device, circuit, LED lamp and storage medium |
| CN110519880B (en) * | 2019-07-15 | 2022-04-05 | 深圳和而泰小家电智能科技有限公司 | LED light source brightness control method, device and circuit, LED lamp and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |
|
| WD01 | Invention patent application deemed withdrawn after publication |