CN206923084U

CN206923084U - A kind of light switching circuit and flashlight

Info

Publication number: CN206923084U
Application number: CN201720546815.9U
Authority: CN
Inventors: 许海宁
Original assignee: MAX LUX CORP Ltd
Current assignee: Guangdong xingzhiji Technology Co., Ltd
Priority date: 2017-05-16
Filing date: 2017-05-16
Publication date: 2018-01-23
Anticipated expiration: 2027-05-16

Abstract

The utility model discloses a kind of light switching circuit and flashlight, the light switching circuit includes LED connections circuit, control module and mode control circuit；The LED connection circuits are electrically connected with by control module and mode control circuit, and the mode control circuit is connected circuit electric connection with LED, the mode control circuit includes switch S1 and switch S2, the switch S1 and switch S2 is electrically connected with control module.Flashlight of the present utility model can directly carry out the replacing of gear, without the lights state by flashlight, so that switching more simple and convenient of gear.

Description

A kind of light switching circuit and flashlight

Technical field

It the utility model is related to a kind of flashlight technical field, more particularly to a kind of light switching circuit and flashlight.

Background technology

At present, during the gearshift of flashlight, occur OFF's between a upper gear and next gear switch It state, that is to say when switched between a upper gear and next gear, a gear of closing occur among it； So that the trouble that the switching of light is compared, unnecessary use step is added to user, reduces Consumer's Experience.

Utility model content

For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of light switching circuit, It can solve the technical problem of step complexity during gear switch.

The two of the purpose of this utility model are to provide a kind of flashlight, and step is complicated during it can solve gear switch Technical problem.

One of the purpose of this utility model adopts the following technical scheme that realization：

A kind of light switching circuit, including LED connections circuit, control module and mode control circuit；The LED connections electricity Road is electrically connected with by control module and mode control circuit, and the mode control circuit is connected circuit electric connection with LED, The mode control circuit includes switch S1 and switch S2, the switch S1 and switch S2 is electrically connected with control module.

Further, in addition to input circuit, the LED connection circuits are electrically connected by input circuit with control module Connect.

Further, the LED connections circuit includes power supply E1, light emitting diode D2, FET Q1 and resistance R2, institute The positive pole for stating power supply E1 connects with light emitting diode D2 positive pole, the negative pole of the light emitting diode D2 and FET Q1 leakage Pole is electrically connected with, and the negative pole of the power supply E1 and resistance R2 one end are grounded, and the resistance R2 other end is with FET Q1's Grid connects.

Further, the input circuit includes diode D1 and electric capacity C2, the diode D1 positive pole and power supply E1 Positive pole connect, the negative pole of the diode D1 is grounded by electric capacity C2, and the negative pole and control module of the diode D1 is electrical Connection.

Further, the control module includes control chip U1, resistance R1, electric capacity C1 and electric capacity C3, the diode Power end of the one end of D1 negative pole, electric capacity C1 one end and resistance R1 with control chip U1 connects, control chip U1 PWM End and resistance R1 one end are grounded by electric capacity C3, and the electric capacity C1 other end and control chip U1 earth terminal are grounded, control Chip U1 reference input connects with switching S1 one end, and control chip U1 data terminal connects with switching S2 one end, controls Coremaking piece U1 clock end connects with FET Q1 grid, and the other end of the switch S1 and the switch S2 other end connect Ground.

Further, the mode control circuit also includes resistance R3 and resistance R4, resistance R3 one end and resistance R4's One end is grounded, and the other end of the resistance R3 and the resistance R4 other end connect with FET Q1 source electrode.

The two of the purpose of this utility model adopt the following technical scheme that realization：

A kind of flashlight, including light switching circuit as described above, in addition to flashlight cylinder and installed in flashlight Lamp adapter assembly on cylinder, is provided with switch key and mode selection button on the flashlight cylinder, the switch key and Mode selection button is integrated button, the switch key and mode selection button and switch S1 in light switching circuit and switch S2 It is corresponding.

Compared with prior art, the beneficial effects of the utility model are：

Flashlight of the present utility model can directly carry out the replacing of gear, without the lights by flashlight State, so that switching more simple and convenient of gear.

Brief description of the drawings

Fig. 1 is the circuit theory diagrams of light switching circuit of the present utility model.

Embodiment

Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is, On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

As shown in figure 1, a kind of light switching circuit is present embodiments provided, including LED connections circuit, input circuit, control Molding block and mode control circuit；The LED connection circuits are electrically connected with by control module and mode control circuit, and described Mode control circuit is connected circuit electric connection with LED, and the mode control circuit includes switch S1 and switch S2, the switch S1 and switch S2 are electrically connected with control module；

Wherein, the LED connections circuit includes power supply E1, light emitting diode D2, FET Q1 and resistance R2, the electricity Source E1 positive pole connects with light emitting diode D2 positive pole, the negative pole of the light emitting diode D2 and FET Q1 drain electrode electricity Property connection, the negative pole of the power supply E1 and resistance R4 one end be grounded, the resistance R2 other end and FET Q1 grid Connect；

The input circuit includes diode D1 and electric capacity C2, the positive pole of the diode D1 and power supply E1 positive pole phase Connect, the negative pole of the diode D1 is grounded by electric capacity C2, and negative pole and the control module of the diode D1 are electrically connected with；

The control module includes control chip U1, resistance R1, electric capacity C1 and electric capacity C3, the negative pole of the diode D1, The power end of electric capacity C1 one end and resistance R1 one end with control chip U1 connects, control chip U1 PWM ends and resistance R1 one end is grounded by electric capacity C3, and the electric capacity C1 other end and control chip U1 earth terminal are grounded, control chip U1's Reference input connects with switching S1 one end, and control chip U1 data terminal connects with switching S2 one end, control chip U1 Clock end connect with FET Q1 grid；Wherein control chip U1 PWM ends are P3 ends, control chip U1 data Hold as P4 ends, control chip U1 clock end is P0 ends；

The mode control circuit also includes resistance R3 and resistance R4, switchs the S1 other end, switchs the S2 other end, electricity Hinder R3 one end and resistance R4 one end to be grounded, the other end of the resistance R3 and the resistance R4 other end and FET Q1 Source electrode connect.

The operation principle of the present embodiment：

Power supply E1 by diode D1 and electric capacity C2 give control chip U1 power supply, control chip U1 can with normal work, and Connection or disconnection to switch S1 and switch S2 are detected and recorded；When LED is OFF state, control chip U1 FET Q1 is provided signals to, FET Q1 is not turned on, and LED does not light, and when touch switch, control chip U1 is carried FET Q1, Q1 conducting is given for signal, power supply E1 is by LED etc. and torch pipe wall, by FET Q1 and resistance R2 is to ground and then forms loop.

When 100% grade, LED's LED is lighted, and when touch switch again, flashlight is shifted gears, field-effect Pipe Q1 is turned on, and during gearshift, when not loosing one's grip, LED is maintained at 100% gear, when loosing one's grip, just meeting Next gear is switched to, when loosing one's grip, only one, switch is closure, that is to say some closure in S1 or S2, Another is to disconnect.This practical flashlight is using control chip U1 detection function and the property combination of switch, most There is a switch to be in closure state at first, a switch is off, also begun in whole handoff procedure A switch eventually be present in closure, in disconnecting, signals of the control chip U1 in handoff procedure controls a switch The conversion of gear, any when during touch switch, switch can with switch S1 and switch S2 disconnection actions, now, Control chip U1 is detected so that LED lights.

The utility model additionally provides a kind of flashlight, the light switching circuit as described by above-mentioned embodiment, in addition to Flashlight cylinder and the lamp adapter assembly on flashlight cylinder, switch key and pattern are installed on the flashlight cylinder Selection key, the switch key and mode selection button are integrated button, the switch key and mode selection button and light Switch S1 is corresponding with switch S2 in switching circuit.

Above-mentioned embodiment is only preferred embodiment of the present utility model, it is impossible to is protected with this to limit the utility model Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to In the utility model scope claimed.

Claims

1. a kind of light switching circuit, including LED connections circuit, control module and mode control circuit；It is characterized in that, described LED connection circuits are electrically connected with by control module and mode control circuit, and the mode control circuit is connected circuit with LED It is electrically connected with, the mode control circuit is electric with control module including switch S1 and switch S2, the switch S1 and switch S2 Property connection.

2. light switching circuit as claimed in claim 1, it is characterised in that also including input circuit, the LED connections circuit It is electrically connected with by input circuit and control module.

3. light switching circuit as claimed in claim 2, it is characterised in that the LED connections circuit includes power supply E1, lighted Diode D2, FET Q1 and resistance R2, the positive pole of the power supply E1 connect with light emitting diode D2 positive pole, described luminous Diode D2 negative pole is electrically connected with FET Q1 drain electrode, and the negative pole of the power supply E1 and resistance R2 one end connect Ground, the resistance R2 other end connect with FET Q1 grid.

4. light switching circuit as claimed in claim 3, it is characterised in that the input circuit includes diode D1 and electric capacity C2, the positive pole of the diode D1 connect with power supply E1 positive pole, and the negative pole of the diode D1 is grounded by electric capacity C2, described Diode D1 negative pole is electrically connected with control module.

5. light switching circuit as claimed in claim 4, it is characterised in that the control module includes control chip U1, electricity Hinder R1, electric capacity C1 and electric capacity C3, one end of the negative pole of the diode D1, electric capacity C1 one end and resistance R1 is and control chip U1 power end connects, and control chip U1 PWM ends and resistance R1 one end are grounded by electric capacity C3, the electric capacity C1 other end and Control chip U1 earth terminal is grounded, and control chip U1 reference input connects with switching S1 one end, control chip U1 Data terminal with switch S2 one end connect, control chip U1 clock end connects with FET Q1 grid, the switch The S1 other end and the switch S2 other end are grounded.

6. light switching circuit as claimed in claim 5, it is characterised in that the mode control circuit also include resistance R3 and Resistance R4, resistance R3 one end and resistance R4 one end are grounded, the other end of the resistance R3 and the resistance R4 other end with FET Q1 source electrode connects.

7. a kind of flashlight, it is characterised in that including light switching circuit as claimed in claim 1, in addition to flashlight cylinder Body and the lamp adapter assembly on flashlight cylinder, be provided with the flashlight cylinder switch key and model selection by Key, the switch key and mode selection button are integrated button, the switch key and mode selection button and light switching electricity It is corresponding with switch S2 that S1 is switched in road.