CN209448944U - The touch battery-operated circuit of low-power consumption and LED drive circuit - Google Patents
The touch battery-operated circuit of low-power consumption and LED drive circuit Download PDFInfo
- Publication number
- CN209448944U CN209448944U CN201822147002.XU CN201822147002U CN209448944U CN 209448944 U CN209448944 U CN 209448944U CN 201822147002 U CN201822147002 U CN 201822147002U CN 209448944 U CN209448944 U CN 209448944U
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- Prior art keywords
- battery
- circuit
- mcu
- chip
- pin
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- 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]
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of touch battery-operated circuits of low-power consumption, including battery, start battery chip, voltage output control chip and MCU, battery is that start battery chip and voltage output control chip power supply, the IN pin of start battery chip connects a touch key-press, its OUT pin exports the RUN pin of start battery signal to voltage output control chip, it is exported after the voltage step-down of voltage output control chip controls battery, the MCU-POWER pin of MCU is connect with the RUN pin of voltage output control chip.The utility model additionally provides a kind of LED drive circuit.MCU can control voltage output control chip whether output voltage, thus avoid to MCU setting operation after the completion of forget close switch cause one direct power supply of battery to consume the case where.
Description
Technical field
The utility model relates to a kind of touch battery-operated circuit of low-power consumption and LED drive circuits.
Background technique
Battery-operated circuit is commonly divided into two kinds, the first: concatenating a dial type machinery in battery and load circuit
Switch, controls battery powered ON/OFF.Second: connecing a control circuit in battery and load circuit, pressed with one
System switch is to control the on/off of this circuit, to control battery powered ON/OFF.
The shortcomings that both circuits is exactly only to work in the state of single on or off.If forgotten after the completion of operation
Remember that Guan Kaiguan, battery can not have the works of intelligent power saving to some energy-efficient battery-powered products of needs always for electric consumption
With.
Utility model content
The utility model proposes a kind of touch battery-operated circuit of low-power consumption and LED drive circuit, to battery power into
Row control forgets that closing switch causes one direct power supply of battery to consume after the completion of avoiding the setting to MCU from operating.
The technical solution of the utility model is achieved in that
A kind of touch battery-operated circuit of low-power consumption, including battery, start battery chip, voltage output control chip and
MCU, the battery are that the start battery chip and voltage output control chip power supply, the IN pin of the start battery chip
A touch key-press is connected, OUT pin exports the RUN pin of start battery signal to voltage output control chip, described
It is exported after the voltage step-down of voltage output control chip controls battery, the MCU-POWER pin of the MCU and the voltage output
Control the RUN pin connection of chip.
Preferably, the voltage output control chip voltage output pin connects inductance L1 and filter capacitor CE1.
It preferably, further include menu setting chip, the menu setting chip is equipped with several touch key-press, outputs signal to
The MCU.
A kind of LED drive circuit further includes Switching Power Supply, LED including the touch battery-operated circuit of low-power consumption
Driving circuit, LED and voltage regulator circuit, the Switching Power Supply, LED drive circuit and LED are sequentially connected, and the Switching Power Supply is through institute
Voltage regulator circuit is stated as MCU power supply.
It preferably, further include display circuit, the display circuit and the MCU and the touch battery-operated circuit of low-power consumption
Connection.
Preferably, the voltage regulator circuit includes 5V voltage regulator circuit and 3.3V voltage regulator circuit, and the 5V voltage regulator circuit is through battery
Charging circuit is battery charging, and the 3.3V voltage regulator circuit is MCU power supply.
It preferably, further include DMX serial ports output circuit, the DMX serial ports output circuit is connect with the MCU.
The utility model has the beneficial effects that: controlling battery power supply, after the completion of avoiding the setting to MCU from operating
Forget that closing switch causes one direct power supply of battery to consume.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of circuit diagram of the touch battery-operated circuit one embodiment of low-power consumption of the utility model；
Fig. 2 is the PCB circuit diagram of touch key-press S5；
Fig. 3 is a kind of circuit block diagram of LED drive circuit of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As depicted in figs. 1 and 2, the utility model proposes a kind of touch battery-operated circuit of low-power consumption, including battery,
Start battery chip, voltage output control chip and MCU, battery are that start battery chip and voltage output control chip power supply,
The IN pin of start battery chip connects a touch key-press, and OUT pin exports start battery signal to voltage output and controls core
The RUN pin of piece, voltage output control chip controls battery voltage step-down after export, the MCU-POWER pin and voltage of MCU
The RUN pin connection of output control chip.
(there is no external power supply, battery only gives U2 and U3 to power) under standby mode state, touches start battery core with hand
The touch key-press of piece connection, after about 1 second, after start battery chip U2 detects touch signal, by the OUT of start battery chip U2
Foot exports start battery signal outward, is high level, this high level passes to the RUN that voltage output controls chip U3 by resistance R4
Pin, when the RUN pin of voltage output control chip U3 is high level, voltage output controls chip U3 can be by the electricity at the end VBAT
Cell voltage controls the SW pin for being output to voltage output after chip U3 internal circuit is depressured and controlling chip U3 by voltage output, then
Start to supply electricity to MCU by inductance L1, filter capacitor CE1.
After having the power supply of voltage on MCU, it is MCU-POWER pin that MCU, which has a pin, this pin exports high electricity at this time
Flat, this high level is given to the RUN pin of U3 by resistance R3, and the RUN foot of U3 is made to keep high level, when the RUN pin of U3 is protected
When holding high level, cell voltage VBAT is output on VCC after being depressured by U3 internal circuit.
If MCU exports low level through MCU-POWER pin, the RUN foot of U3 is low level, the VIN pin foot and U3 of U3
SW pin inner portions disconnect, that is, VBAT and VCC are disconnected, the upper no voltage of VCC.At this point, battery only gives U2 and U3 to power,
Complete machine enters standby mode.
The utility model further includes menu setting chip, and menu setting chip is equipped with several touch key-press, outputs signal to
MCU。
Menu setting chip can be equipped with touch key-press S1-S6, and start battery chip U2 external touch key-press is S5.When
After battery is converted to powering mode by standby mode, menu can be started setting up by menu setting chip U1, after setting completed,
When no longer touching any one of S1-S6 key, MCU starts timing, and after timing 20 seconds, 20 seconds, MCU gives MCU-POWER pin
Low level is exported, this low level is given to 1 foot of U3 by R3, when 1 foot of U3 is low level, inside 4 feet of U3 and 3 feet of U3
It disconnects, that is, VBAT and VCC is disconnected, the upper no voltage of VCC.At this point, battery only gives U2 and U3 to power, complete machine enters standby
Mode.
As shown in figure 3, the utility model proposes a kind of LED drive circuit, including the touch start battery electricity of low-power consumption
Road, further includes Switching Power Supply, LED drive circuit, LED and voltage regulator circuit, and Switching Power Supply, LED drive circuit and LED successively connect
It connects, Switching Power Supply is MCU power supply through voltage regulator circuit.
The utility model further includes display circuit, and display circuit is connect with MCU and the touch battery-operated circuit of low-power consumption.
Voltage regulator circuit includes 5V voltage regulator circuit and 3.3V voltage regulator circuit, and 5V voltage regulator circuit is filled through battery charger for battery
Electricity, 3.3V voltage regulator circuit are MCU power supply.
The utility model further includes DMX serial ports output circuit, and DMX serial ports output circuit is connect with MCU.The output of DMX serial ports
Adjustment signal of the circuit to MCU output LED.
The utility model controls battery power supply, forgets that closing switch causes after the completion of avoiding the setting to MCU from operating
The consumption of one direct power supply of battery.
Above-mentioned technical proposal discloses the improvement of the utility model, the technology contents not being disclosed in detail, can be by this field
Technical staff is achieved by the prior art.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of touch battery-operated circuit of low-power consumption, it is characterised in that: including battery, start battery chip, voltage output
Chip and MCU are controlled, the battery is that the start battery chip and voltage output control chip power supply, the start battery core
The IN pin of piece connects a touch key-press, and OUT pin exports the RUN of start battery signal to voltage output control chip
Pin exports after the voltage step-down of voltage output control chip controls battery, the MCU-POWER pin of the MCU and institute
State the RUN pin connection of voltage output control chip.
2. the touch battery-operated circuit of low-power consumption according to claim 1, it is characterised in that: the voltage output control
Chip voltage output pin connects inductance L1 and filter capacitor CE1.
3. the touch battery-operated circuit of low-power consumption according to claim 1, it is characterised in that: further include menu setting core
Piece, the menu setting chip are equipped with several touch key-press, output signal to the MCU.
4. a kind of LED drive circuit, which is characterized in that including the touch battery of the described in any item low-power consumption of claim 1-3
Start-up circuit, further includes Switching Power Supply, LED drive circuit, LED and voltage regulator circuit, the Switching Power Supply, LED drive circuit and
LED is sequentially connected, and the Switching Power Supply is MCU power supply through the voltage regulator circuit.
5. LED drive circuit according to claim 4, which is characterized in that further include display circuit, the display circuit with
The MCU is connected with the touch battery-operated circuit of low-power consumption.
6. LED drive circuit according to claim 4, which is characterized in that the voltage regulator circuit include 5V voltage regulator circuit and
3.3V voltage regulator circuit, the 5V voltage regulator circuit are battery charging through battery charger, and the 3.3V voltage regulator circuit is institute
State MCU power supply.
7. LED drive circuit according to claim 4, which is characterized in that further include DMX serial ports output circuit, the DMX
Serial ports output circuit is connect with the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147002.XU CN209448944U (en) | 2018-12-20 | 2018-12-20 | The touch battery-operated circuit of low-power consumption and LED drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147002.XU CN209448944U (en) | 2018-12-20 | 2018-12-20 | The touch battery-operated circuit of low-power consumption and LED drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209448944U true CN209448944U (en) | 2019-09-27 |
Family
ID=68014600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822147002.XU Active CN209448944U (en) | 2018-12-20 | 2018-12-20 | The touch battery-operated circuit of low-power consumption and LED drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209448944U (en) |
-
2018
- 2018-12-20 CN CN201822147002.XU patent/CN209448944U/en active Active
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| GR01 | Patent grant |