CN201209772Y - Chargeable electric torch of pulse voltage-boosting type LED lamp - Google Patents
Chargeable electric torch of pulse voltage-boosting type LED lamp Download PDFInfo
- Publication number
- CN201209772Y CN201209772Y CNU200820062465XU CN200820062465U CN201209772Y CN 201209772 Y CN201209772 Y CN 201209772Y CN U200820062465X U CNU200820062465X U CN U200820062465XU CN 200820062465 U CN200820062465 U CN 200820062465U CN 201209772 Y CN201209772 Y CN 201209772Y
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- led lamp
- circuit
- transistor
- power supply
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a step-up pulse type chargeable LED lamp flashlight. The utility model resolves the problems of the prior chargeable flashlight, including high cost, high energy consumption, large volume, heaviness and serious environmental pollution of waste batteries. The output of a power supply (3) arranged in the flashlight is connected with the input of a step-up pulse circuit (4); the output of the step-up pulse circuit (4) is connected with an LED lamp (5); the step-up pulse circuit (4) is composed of a temperature compensator, a fixed inductor and a transistor; the temperature compensator is composed of a current-limiting resistor (R3) and a diode (D6) or a divider resistor; one route of one end of the primary coil (L1) of the fixed inductor is connected with one electrode of the power supply (3) through a switch (K); the other route of the end is divided into two routes after passing through the current-limiting resistor (R3); one route is connected with one end of the secondary coil (L2) of the fixed inductor; the other route is connected with the input of the transistor; the output of the transistor is connected with the LED lamp (5); and the other electrode of the power supply (3) is connected with a transistor switching circuit, the temperature compensator and the LED lamp.
Description
Technical field:
The utility model is relevant with chargeable flashlight, is that the LED lamp chargeable flashlight of power supply is relevant with adopting NI-G or nickel-hydrogen accumulator especially.
Background technology:
The operating voltage of its lamp of existing white LED lamp Rechargeable torch must guarantee could normally light between DC3.2-3.6V, so the battery multiselect saves NI-Gs with 4V lead-acid battery or 3 or (NI-G, Ni-MH battery single-unit nominal voltage 1.2V) used in the Ni-MH battery series connection, therefore, the cost of battery is very high, and is big and increase the weight of pollution to environment to the waste of the energy.
The utility model content:
It is low that the purpose of this utility model provides a kind of cost, energy-conservation, long service life, the impulse type LED lamp chargeable flashlight of minimizing environmental pollution.
The utility model is achieved in that
The output of the power supply 3 in the utility model pulse boosting type LED lamp chargeable flashlight, flashlight is connected with the input of pulse boostering circuit 4, and the output of pulse boostering circuit 4 is connected with LED lamp 5, and said pulse boostering circuit 4 is by current-limiting resistance R
3, diode D
6Or temperature compensator, fixed inductance and transistor that divider resistance constitutes are formed the primary coil L of fixed inductance
1An end lead up to K switch and be connected with the one-level of power supply 3, another road of this end is through current-limiting resistance R
3After be divided into two-way, the one tunnel with the secondary coil L of fixed inductance
2An end connect, another road is connected coil L with an end of temperature compensator
1, L
2Be connected with the transistor input with the other end of temperature compensator, transistorized output is connected with LED lamp 5.
Transistor switching circuit is germanium or silicon transistor Q
1, Q
1Base stage and secondary coil L
2Connect colelctor electrode and primary coil L
1Connect, emitter stage is connected with temperature compensator, and the LED lamp is connected in Q
1Collector and emitter between.
LED lamp 5 constitutes by 1-n LED luminous tube is in parallel.
Power supply 3 is NI-G or the Ni-MH battery of 1 joint 1.2V or is the common batteries of 1 joint 1.5V that the LED luminous tube is 1-10.
There is an input of rectification circuit 2 to be connected with a utmost point of charging plug in the flashlight through capacitor current-limiting circuit 1, another input of rectification circuit is connected with another utmost point of charging plug, and the output of rectification circuit 2 is connected with the power supply 3 that NI-G or nickel-hydrogen accumulator constitute.
The utility model with the joint NI-G of 1.2V or nickel-hydrogen accumulator after simply pulse boostering circuit 4 boosts, drive semiconductor LED lamp with high-frequency pulsating current, make the LED lamp produce high-frequency pulsation visible light, in the visual persistence effect of human eye, promptly reach the effect of continuous light; Battery with a joint 1.2V has replaced saving batteries with 3 in the past simultaneously, can save about 2/3rds battery cost, reduces the cost of flashlight greatly, falls the volume and weight of few flashlight.The service life of illuminating effect and battery is constant substantially, and is energy-conservation, reduces the pressure that the refuse battery environmental pollution causes.
Description of drawings:
Fig. 1 is a block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
The specific embodiment:
The utility model charge type flashlight, the capacitor current-limiting circuit 1 of ac power plug one utmost point on the torch body in cylindrical shell connects an input of rectification circuit 2, the output of rectification circuit 2 is parallel with battery 3, booster circuit 4 and LED illuminating lamp 5, and booster circuit is by current-limiting resistance R
3, diode D
6, inductance coil L
1, and L
2, silicon transistor Q
1Form pulse oscillation circuit, change R
3, L
1, L
2Parameter can change pulse frequency and output current size, can drive 1---10 LED illuminating lamp on demand, preferably drive 5 LED illuminating lamps.
The primary coil L of the fixed inductance of booster circuit 4
1One end is connected with battery 3, and the other end is connected L with the LED illuminating lamp
2The secondary coil that is fixed inductance provides Q
1The anti-phase shutoff voltage of triode, R
3Restriction Q
1The positive work electric current of triode, D
6Diode plays temperature compensation function.Rectification circuit 2 is diode D
1-D
4The full-wave rectifying circuit of forming.Capacitor current-limiting circuit 1 is by capacitor C
1And resistance R
1Parallel connection is connected in the alternating current input power supplying charging indicator light D then with full-wave rectifying circuit 2
5With resistance R
2Be parallel to after the series connection on the alternating current input power supplying, LED illuminating lamp 5 constitutes by 1-10 LED lamps are in parallel.
The minimum operating voltage of circuit can be at DC0.7V, and D6 is a temperature compensated diode, and pulse boostering circuit and LED lamp are subjected to the control of K switch.
Claims (5)
1, pulse boosting type LED lamp chargeable flashlight, the output that it is characterized in that the power supply (3) in the flashlight is connected with the input of pulse boostering circuit (4), the output of pulse boostering circuit (4) is connected with LED lamp (5), and said pulse boostering circuit (4) is by current-limiting resistance R
3, diode D
6Or temperature compensator, fixed inductance and transistor that divider resistance constitutes are formed the primary coil L of fixed inductance
1An end lead up to K switch and be connected with the one-level of power supply (3), another road of this end is through current-limiting resistance R
3After be divided into two-way, the one tunnel with the secondary coil L of fixed inductance
2An end connect, another road is connected coil L with an end of temperature compensator
1, L
2Be connected with the transistor input with the other end of temperature compensator, transistorized output is connected with LED lamp (5).
2, chargeable flashlight according to claim 1 is characterized in that transistor is germanium or silicon transistor Q
1, Q
1Base stage and secondary coil L
2Connect colelctor electrode and primary coil L
1Connect, emitter stage is connected with temperature compensator, and the LED lamp is connected in Q
1Collector and emitter between.
3, chargeable flashlight according to claim 1 is characterized in that LED lamp (5) constitutes by 1-n LED luminous tube is in parallel.
4, chargeable flashlight according to claim 3 is characterized in that power supply (3) is NI-G or the Ni-MH battery of 1 joint 1.2V or is the common batteries of 1 joint 1.5V that the LED luminous tube is 1-10.
5, chargeable flashlight according to claim 1, it is characterized in that having in the flashlight input of rectification circuit (2) to be connected with a utmost point of charging plug through capacitor current-limiting circuit (1), another input of rectification circuit is connected with another utmost point of charging plug, and the output of rectification circuit (2) is connected with the power supply (3) that NI-G or nickel-hydrogen accumulator constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820062465XU CN201209772Y (en) | 2008-03-12 | 2008-03-12 | Chargeable electric torch of pulse voltage-boosting type LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820062465XU CN201209772Y (en) | 2008-03-12 | 2008-03-12 | Chargeable electric torch of pulse voltage-boosting type LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201209772Y true CN201209772Y (en) | 2009-03-18 |
Family
ID=40480507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820062465XU Expired - Fee Related CN201209772Y (en) | 2008-03-12 | 2008-03-12 | Chargeable electric torch of pulse voltage-boosting type LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201209772Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103402293A (en) * | 2013-08-19 | 2013-11-20 | 黄月华 | High brightness LED flashlight adopting single battery |
| CN103672431A (en) * | 2013-11-21 | 2014-03-26 | 浙江龙驰科技有限公司 | LED flashlight |
-
2008
- 2008-03-12 CN CNU200820062465XU patent/CN201209772Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103402293A (en) * | 2013-08-19 | 2013-11-20 | 黄月华 | High brightness LED flashlight adopting single battery |
| CN103672431A (en) * | 2013-11-21 | 2014-03-26 | 浙江龙驰科技有限公司 | LED flashlight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20100312 |