CN204795756U - LED lamps and lanterns touch button starting circuit - Google Patents
LED lamps and lanterns touch button starting circuit Download PDFInfo
- Publication number
- CN204795756U CN204795756U CN201520478421.5U CN201520478421U CN204795756U CN 204795756 U CN204795756 U CN 204795756U CN 201520478421 U CN201520478421 U CN 201520478421U CN 204795756 U CN204795756 U CN 204795756U
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- circuit
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- mcu
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- Expired - Fee Related
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Abstract
The utility model provides a LED lamps and lanterns touch button starting circuit, includes battery charging circuit, battery, touch button circuit and MCU, Q1, triode Q2 and triode Q3 manages including touch chip U1, MOS to the touch button circuit, and touch chip U1's input pin 4 starts button K3 with the touch to be connected, source connection that the output pin 1 that touches chip U1 managed Q1 with triode Q3's base and MOS respectively, battery output end and MOS pipe Q1's source connection, MOS pipe Q1's drain electrode is connected with MCU, triode Q3's grounded collector, triode Q3's projecting pole and MOS pipe Q1's grid are connected, triode Q2's projecting pole and base are all connected on MOS pipe Q1 and touch chip U1's interconnecting link, triode Q2's grounded collector, and triode Q2's base is connected with MCU's control pin. Do not connect at lamps and lanterns under external power source's the condition, supply power to the circuit that sets up of lamps and lanterns through built -in battery. (U /)
Description
Technical field
The utility model relates to field of LED illumination, especially a kind of LED lamp touch key-press start-up circuit.
Background technology
The control circuit of existing LED lamp inside generally comprises power supply circuits, mechanically activated circuit, MCU and display and operation push-button circuit; This kind of light fixture is without built-in power, and light fixture needs to connect external power supply and just opened by light fixture by mechanically activated circuit.And also only could arrange light fixture under the state of light fixture unlatching.LED lamp needs to arrange according to different scene, especially stage lighting, and the light fixture that this kind needs energising just can carry out arranging can make troubles to engineering staff to a certain extent; Time as set up a platform out of doors, probably because the deficiency of power equipment causes to arrange light fixture, thus incur loss through delay the progress of engineering.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of LED lamp touch key-press start-up circuit, starts control circuit and arrange it at light fixture under the state can not having external power supply.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of LED lamp touch key-press start-up circuit, comprises battery charger, battery, touch key-press circuit and MCU; Described touch key-press circuit comprises touch chip U1, metal-oxide-semiconductor Q1, triode Q2 and triode Q3, the input pin 4 of described touch chip U1 starts button K3 with touch and is connected, and the output pin 1 of described touch chip U1 is connected with the base stage of triode Q3 and the source electrode of metal-oxide-semiconductor Q1 respectively; The output of described battery is connected with the source electrode of metal-oxide-semiconductor Q1, and the drain electrode of described metal-oxide-semiconductor Q1 is connected with MCU; The grounded collector of described triode Q3, the emitter of triode Q3 is connected with the grid of metal-oxide-semiconductor Q1; The emitter of described triode Q2 and base stage are all connected to metal-oxide-semiconductor Q1 and touch on the connection line of chip U1, and the grounded collector of described triode Q2, the base stage of described triode Q2 is connected with the control pin of MCU.Utility model works principle: when LED lamp there is not external power supply, press to touch and start button K3 triggers touch chip U1, the signal that the output pin touching chip U1 exports is end level, thus trigger metal-oxide-semiconductor Q1 conducting, after metal-oxide-semiconductor Q1 conducting, battery can be powered to MCU, MCU obtain electric after just can start working, now just can arrange MCU; The signal that the control pin of MCU continues to export is low level, to ensure that MCU normally works.When LED lamp external power supply, the control pin of MCU exports high level signal makes metal-oxide-semiconductor Q1 turn off, thus disconnects the power supply of battery.
As improvement, also comprise LED drive circuit, described MCU is by described LED drive circuit driving LED lamp pearl.
As improvement, also comprise the display and operation push-button circuit that are connected with MCU, display and operation push-button circuit comprise display screen and touch key-press.
As improvement, also comprise 28V switch power supply output circuit, 5V voltage stabilizing circuit and 3.3V voltage stabilizing circuit, described 28V switch power supply output circuit is powered respectively to 5V voltage stabilizing circuit and LED drive circuit, described 5V voltage stabilizing circuit is powered respectively to 3.3V voltage stabilizing circuit, MCU and battery charger, and described 3.3V voltage stabilizing circuit is to display and operation push-button circuit supply.
As improvement, also comprise DMX512 serial ports output circuit, described MCU is controlled platform by DMX512 serial ports output circuit with DMX512 and is connected.
The beneficial effect that the utility model is compared with prior art brought is:
When light fixture does not connect external power source, by built-in battery circuit supply being set to light fixture, when needs arrange light fixture, opening by touching start-up circuit, MCU is in and can arranges state, the display screen of display and operation push-button circuit can show the current state of light fixture simultaneously; Trigger MCU by the button of display and operation push-button circuit thus reach the object that light fixture state is set.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure block diagram.
Fig. 2 is touch key-press circuit structure block diagram.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in Figure 1, a kind of LED lamp touch key-press start-up circuit, comprises power supply circuits, LED drive circuit, battery charger, battery, touch key-press circuit, display and operation push-button circuit, DMX512 serial ports output circuit and MCU.
As shown in Figure 2, described touch key-press circuit comprises touch chip U1, metal-oxide-semiconductor Q1, triode Q2 and triode Q3.The input pin 4 of described touch chip U1 starts button K3 with touch and is connected, the output pin 1 of described touch chip U1 is connected with the base stage of triode Q3 by resistance R25, the output pin 1 touching chip U1 is connected with the source electrode of metal-oxide-semiconductor by after resistance R25 with R26, and touching chip U1 has 3.6V Power supply.The output of described battery is connected with the source electrode of metal-oxide-semiconductor Q1, and the drain electrode of described metal-oxide-semiconductor Q1 is connected with MCU, and the drain electrode of metal-oxide-semiconductor Q1 is by two electric capacity C9 parallel with one another and C11 ground connection, and when after metal-oxide-semiconductor Q1 conducting, battery can be powered to MCU.The grounded collector of described triode Q3, the emitter of triode Q3 is connected with the grid of metal-oxide-semiconductor Q1 by resistance R24.The base stage of described triode Q2 is connected to metal-oxide-semiconductor Q1 by resistance R20 and is touched on the connection line of chip U1; The emitter of triode Q2 is connected to metal-oxide-semiconductor Q1 by resistance R14, R15 and is touched on the connection line of chip U1; The grounded collector of described triode Q2.The base stage of described triode Q2 is connected with the control pin of MCU.
As shown in Figure 1, described MCU is by described LED drive circuit driving LED lamp pearl.
As shown in Figure 1, described MCU is controlled platform with DMX512 be connected by DMX512 serial ports output circuit.
As shown in Figure 1, described display and operation push-button circuit comprise display screen and touch key-press, and display screen can show the current state of LED lamp; Touch key-press is for arranging the state of LED lamp.
As shown in Figure 1, described power supply circuits comprise 28V switch power supply output circuit, 5V voltage stabilizing circuit and 3.3V voltage stabilizing circuit, described 28V switch power supply output circuit is powered respectively to 5V voltage stabilizing circuit and LED drive circuit, described 5V voltage stabilizing circuit is powered respectively to 3.3V voltage stabilizing circuit, MCU and battery charger, and described 3.3V voltage stabilizing circuit is to display and operation push-button circuit supply.
Utility model works principle: when LED lamp there is not external power supply, press to touch and start button K3 triggers touch chip U1, the signal that the output pin touching chip U1 exports is end level, thus trigger metal-oxide-semiconductor Q1 conducting, after metal-oxide-semiconductor Q1 conducting, battery can be powered to MCU, MCU obtain electric after just can start working, now just can arrange MCU; The signal that the control pin of MCU continues to export is low level, to ensure that MCU normally works.When LED lamp external power supply, the control pin of MCU exports high level signal makes metal-oxide-semiconductor Q1 turn off, thus disconnects the power supply of battery.
Claims (5)
1. a LED lamp touch key-press start-up circuit, is characterized in that: comprise battery charger, battery, touch key-press circuit and MCU; Described touch key-press circuit comprises touch chip U1, metal-oxide-semiconductor Q1, triode Q2 and triode Q3, the input pin 4 of described touch chip U1 starts button K3 with touch and is connected, and the output pin 1 of described touch chip U1 is connected with the base stage of triode Q3 and the source electrode of metal-oxide-semiconductor respectively; The output of described battery is connected with the source electrode of metal-oxide-semiconductor Q1, and the drain electrode of described metal-oxide-semiconductor Q1 is connected with MCU; The grounded collector of described triode Q3, the emitter of triode Q3 is connected with the grid of metal-oxide-semiconductor Q1; The emitter of described triode Q2 and base stage are all connected to metal-oxide-semiconductor Q1 and touch on the connection line of chip U1, and the grounded collector of described triode Q2, the base stage of described triode Q2 is connected with the control pin of MCU.
2. a kind of LED lamp touch key-press start-up circuit according to claim 1, is characterized in that: also comprise LED drive circuit, and described MCU is by described LED drive circuit driving LED lamp pearl.
3. a kind of LED lamp touch key-press start-up circuit according to claim 2, is characterized in that: also comprise the display and operation push-button circuit that are connected with MCU, and display and operation push-button circuit comprise display screen and touch key-press.
4. a kind of LED lamp touch key-press start-up circuit according to claim 3, it is characterized in that: also comprise 28V switch power supply output circuit, 5V voltage stabilizing circuit and 3.3V voltage stabilizing circuit, described 28V switch power supply output circuit is powered respectively to 5V voltage stabilizing circuit and LED drive circuit, described 5V voltage stabilizing circuit is powered respectively to 3.3V voltage stabilizing circuit, MCU and battery charger, and described 3.3V voltage stabilizing circuit is to display and operation push-button circuit supply.
5. a kind of LED lamp touch key-press start-up circuit according to claim 1, is characterized in that: also comprise DMX512 serial ports output circuit, and described MCU is controlled platform by DMX512 serial ports output circuit with DMX512 and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478421.5U CN204795756U (en) | 2015-07-06 | 2015-07-06 | LED lamps and lanterns touch button starting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478421.5U CN204795756U (en) | 2015-07-06 | 2015-07-06 | LED lamps and lanterns touch button starting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204795756U true CN204795756U (en) | 2015-11-18 |
Family
ID=54535714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520478421.5U Expired - Fee Related CN204795756U (en) | 2015-07-06 | 2015-07-06 | LED lamps and lanterns touch button starting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204795756U (en) |
-
2015
- 2015-07-06 CN CN201520478421.5U patent/CN204795756U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20200706 |