CN106505984A - Low power consumption and low cost start-up circuit - Google Patents
Low power consumption and low cost start-up circuit Download PDFInfo
- Publication number
- CN106505984A CN106505984A CN201611265499.4A CN201611265499A CN106505984A CN 106505984 A CN106505984 A CN 106505984A CN 201611265499 A CN201611265499 A CN 201611265499A CN 106505984 A CN106505984 A CN 106505984A
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- touch
- switch
- resistor
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0008—Arrangements for reducing power consumption
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/003—Modifications for increasing the reliability for protection
- H03K19/00346—Modifications for eliminating interference or parasitic voltages or currents
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a kind of low power consumption and low cost start-up circuit, including set of cells, motor, start-up circuit, booster circuit, drive circuit and open circuit detection protection circuit, start-up circuit includes master chip and many line structure identical touch key circuits, touch key circuit includes touch-switch, first resistor, second resistance, first indication LED lamp and 3rd resistor, after touch-switch is connected with first resistor and the other end of touch-switch is connected on the I/O ports of master chip, the other end of first resistor string is connected on the COM pins of master chip, second resistance connect with the first indication LED lamp after with touch-switch, first resistor series circuit is in parallel, 3rd resistor is connected to other end ground connection on the pin of chip.The structure setting of the present invention is reasonable, it is possible to reduce the usage amount of chip I/O feet, has additional an earth resistance, can remove touch-switch to detecting the interference of port, can effectively reduce processing cost to a certain extent and reduce power consumption.
Description
Technical field
The invention belongs to start-up circuit, and in particular to a kind of low power consumption and low cost start-up circuit.
Background technology
When product has multi-functional control, then the I/0 ends pin out requirements of MCU will increase greatly, and I/O ends pin increases
It is accomplished by extending many pins, so as to need greatly to increase design cost, so the suitability and practicality are restricted.
Content of the invention
It is an object of the invention to provide a kind of structure setting rationally and is effectively reduced I/O ends pin usage amount in MCU
Low power consumption and low cost start-up circuit.
The technical scheme for realizing the object of the invention is a kind of low power consumption and low cost start-up circuit, including set of cells, motor, opens
Galvanic electricity road, booster circuit, drive circuit and open circuit detection protection circuit, the set of cells are connected with the motor, the liter
Volt circuit is connected between set of cells and motor and the control end of booster circuit is connected with the start-up circuit, the driving electricity
Road is connected between motor and the drive signal end of the start-up circuit, and the open circuit detection protection circuit is connected to motor and opens
Between the detection signal end on galvanic electricity road, the start-up circuit includes master chip and many line structure identical touch key circuits, institute
State booster circuit, drive circuit and open circuit detection protection circuit to be both connected on the corresponding pin of master chip, the touch key
Circuit includes touch-switch, first resistor, second resistance, the first indication LED lamp and 3rd resistor, the touch-switch with described
After first resistor series connection and touch-switch the other end be connected on the I/O ports of master chip, the other end of first resistor string connects
Be connected on the COM pins of master chip, the second resistance connect with the first indication LED lamp after with touch-switch, first resistor string
Connection circuit is in parallel and the second resistance and touch-switch are connected, and the 3rd resistor is connected to second resistance and touches
Other end ground connection on the junction point of switch.
The touch key circuit is at least three tunnels.
The open circuit detection protection circuit includes the 4th resistance and the 5th resistance, the 4th resistance and the 5th resistant series
The other end of the 4th resistance is connected on the negative pole of motor and the other end of the 5th resistance is grounded, the 4th resistance and the 5th afterwards
The junction point of resistance is connected on the master chip of start-up circuit.
The present invention has positive effect：Rationally, one end of its touch key circuit is all connected with the structure setting of the present invention
On the COM pins of master chip, the other end is connected on the I/O pins of master chip, such that it is able to reduce the use of chip I/O feet
Amount, and an earth resistance is had additional, such that it is able to remove touch-switch to detecting the interference of port, thereby may be ensured that makes
Stability and reliability, so processing cost can be effectively reduced to a certain extent and reduce power consumption, strong applicability and reality
Good with property.
Description of the drawings
In order that present disclosure is more likely to be clearly understood, below according to specific embodiment and accompanying drawing is combined, right
The present invention is described in further detail, wherein：
Fig. 1 is the structural representation of the present invention.
Specific embodiment
（Embodiment 1）
Fig. 1 shows a kind of specific embodiment of the present invention, and wherein Fig. 1 is the structural representation of the present invention.
See Fig. 1, a kind of low power consumption and low cost start-up circuit, including set of cells 1, motor 2, start-up circuit 3, booster circuit 4,
Drive circuit 5 and open circuit detection protection circuit 6, the set of cells 1 are connected with the motor 2, and the booster circuit 4 is connected to
Between set of cells 1 and motor 2 and the control end of booster circuit 4 is connected with the start-up circuit 3, the drive circuit 5 connects
Between the drive signal end of motor 2 and the start-up circuit 3, the open circuit detection protection circuit 6 is connected to motor 2 and starts
Between the detection signal end of circuit 3, the start-up circuit 3 includes master chip U2 and many line structure identical touch key circuits
31, the booster circuit, drive circuit and open circuit detection protection circuit are both connected on the corresponding pin of master chip, described are touched
Key circuit 31 includes touch-switch SW, first resistor R1, second resistance R2, the first indication LED lamp L and 3rd resistor R3, institute
State after touch-switch is connected with the first resistor and the other end of touch-switch be connected on the I/O ports of master chip, first
The other end of resistance string is connected on the COM pins of master chip, the second resistance connect with the first indication LED lamp after with touch
Switch, first resistor series circuit are in parallel and the second resistance and touch-switch are connected, and the 3rd resistor connects
Other end ground connection on junction point of the second resistance with touch-switch.
The touch key circuit is at least three tunnels.
The open circuit detection protection circuit 6 includes the 4th resistance R4 and the 5th resistance R5, the 4th resistance and the 5th electricity
After resistance series connection, the other end of the 4th resistance is connected on the negative pole of motor and the other end of the 5th resistance is grounded, the 4th resistance
It is connected on the master chip of start-up circuit with the junction point of the 5th resistance.
Can also increase as needed and add deduct using three road touch key circuits in the present embodiment accompanying drawing for convenience of explanation
The quantity of few touch key circuit.
When product does not work, master chip is in sleep state, and base I/O prot is low level output, and COM port is defeated
Go out for a high level, be that product starts and prepares；When any one touch-switch SW1, SW2, SW3 is pressed, K-F, K-L, K-M
Port is corresponding will to detect a high level, so that master chip revival, is operated state, while executing corresponding
Work, and now the square wave for becoming a fixed frequency is exported by COM ends；When touch-switch is pressed again, K-F, K-L,
K-M ends will receive the square wave of a fixed frequency, so as to carry out next working condition；When the LED on side needs to indicate point
When bright, corresponding K-F, K-L, K-M end is output as high level simply, you can light LED, while the port is also in detection
Input function.When the functional closing of product institute, circuit is impacted for preventing product from repeatedly starting, COM ends export square wave
Continue fixed certain time；Treat that duration is gone over, master chip enters sleep state, COM port output becomes high level output again,
Wait for next task quietly to indicate.
When exporting square wave because of COM ends, frequency is higher, disturbs to detecting port easily by touch-switch, makes product enter
Row maloperation, therefore need to increase by a resistance to ground at detection I/O ends, so as to remove interference effect.
When product does not work, product enters sleep state, and therefore power consumption is relatively low.
In the conventional technology, there are 3 detection ports and 3 display lamp control ports totally 6 ports, that is, need using 6 I/O
Port is controlled to which, and adopts the art of this patent scheme, that is, only need to, using 4 I/O ports, reduce 2.It is similar to the upper main core of figure
The I/O ports of piece are substantially saturated, if be further added by 2 I/O ports, that is, need master chip to increase to 20 from 14 present pins
Individual pin, or more, and the utilization rate of I/O ports will be substantially reduced.When product has more control ends, directly can add
Same circuit gets on, you can save I/O ends terminal.
Rationally, one end of its touch key circuit is both connected on the COM pins of master chip, separately the structure setting of the present invention
One end is connected on the I/O pins of master chip, such that it is able to reduce the usage amount of chip I/O feet, and has additional a ground connection
Resistance, such that it is able to remove touch-switch to detecting the interference of port, thereby may be ensured that the stability and reliability for using, therefore
And processing cost can be effectively reduced to a certain extent and reduce power consumption, strong applicability and practicality is good.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need to be exhaustive to all of embodiment.And these
Belong to the present invention connotation extended obvious change or variation still fall within protection scope of the present invention.
Claims (3)
1. a kind of low power consumption and low cost start-up circuit, including set of cells, motor, start-up circuit, booster circuit and are opened drive circuit
Road detects that protection circuit, the set of cells are connected with the motor, and the booster circuit is connected between set of cells and motor
And the control end of booster circuit is connected with the start-up circuit, the drive circuit is connected to motor with the start-up circuit
Between drive signal end, the open circuit detection protection circuit is connected between motor and the detection signal end of start-up circuit, and which is special
Levy and be：The start-up circuit includes master chip and many line structure identical touch key circuits, the booster circuit, driving electricity
Road and open circuit detection protection circuit be both connected on the corresponding pin of master chip, the touch key circuit include touch-switch,
First resistor, second resistance, the first indication LED lamp and 3rd resistor, after the touch-switch is connected with the first resistor and
The other end of touch-switch is connected on the I/O ports of master chip, the other end of first resistor string is connected to the COM of master chip and draws
On foot, the second resistance is in parallel and described with touch-switch, first resistor series circuit after being connected with the first indication LED lamp
Second resistance is connected with touch-switch, and it is another with the junction point of touch-switch that the 3rd resistor is connected to second resistance
End ground connection.
2. low power consumption and low cost start-up circuit according to claim 1, it is characterised in that：The touch key circuit be to
Few three tunnels.
3. low power consumption and low cost start-up circuit according to claim 2, it is characterised in that：The open circuit detection protection circuit
Including the 4th resistance and the 5th resistance, after the 4th resistance and the 5th resistant series, the other end of the 4th resistance is connected to motor
Negative pole on and the 5th resistance other end ground connection, the junction point of the 4th resistance and the 5th resistance is connected to start-up circuit
On master chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265499.4A CN106505984A (en) | 2016-12-30 | 2016-12-30 | Low power consumption and low cost start-up circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265499.4A CN106505984A (en) | 2016-12-30 | 2016-12-30 | Low power consumption and low cost start-up circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106505984A true CN106505984A (en) | 2017-03-15 |
Family
ID=58334818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611265499.4A Pending CN106505984A (en) | 2016-12-30 | 2016-12-30 | Low power consumption and low cost start-up circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106505984A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009046A (en) * | 2006-12-29 | 2007-08-01 | 谭启仁 | Control device of interactive traffic light |
| WO2015018021A1 (en) * | 2013-08-06 | 2015-02-12 | 深圳市华星光电技术有限公司 | Led backlight and liquid crystal display |
| CN204669677U (en) * | 2015-06-03 | 2015-09-23 | 张礼育 | A kind of multi-functional led desk lamp On line switch |
| CN206349983U (en) * | 2016-12-30 | 2017-07-21 | 广东金莱特电器股份有限公司 | Low power consumption and low cost start-up circuit |
-
2016
- 2016-12-30 CN CN201611265499.4A patent/CN106505984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009046A (en) * | 2006-12-29 | 2007-08-01 | 谭启仁 | Control device of interactive traffic light |
| WO2015018021A1 (en) * | 2013-08-06 | 2015-02-12 | 深圳市华星光电技术有限公司 | Led backlight and liquid crystal display |
| CN204669677U (en) * | 2015-06-03 | 2015-09-23 | 张礼育 | A kind of multi-functional led desk lamp On line switch |
| CN206349983U (en) * | 2016-12-30 | 2017-07-21 | 广东金莱特电器股份有限公司 | Low power consumption and low cost start-up circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102868392B (en) | Portability key circuit | |
| CN103713784A (en) | Capacitive touch detecting circuit, device and identification method capable of preventing mistakes caused by stains | |
| CN103543344B (en) | A kind of method solving capacitance plate inefficacy and capacitance plate abnormity detecting circuit | |
| CN107703821A (en) | A kind of quiescent current control circuit of key wakeup circuit | |
| CN102882496B (en) | Circuit with switch detection and microcontroller reset functions | |
| CN202309671U (en) | Single live wire capacitor touch control wall switch | |
| CN206349983U (en) | Low power consumption and low cost start-up circuit | |
| CN105306038A (en) | Capacitive sensing touch control key and key judging method thereof | |
| CN206096382U (en) | Many buttons switch detection circuit | |
| CN106505984A (en) | Low power consumption and low cost start-up circuit | |
| CN201167310Y (en) | Human body induction type touch key-press circuit for air conditioner | |
| CN106362391A (en) | Wearable wireless sensing module | |
| CN201204575Y (en) | Non-contact type touch induction key-press matrix circuit | |
| CN107809229A (en) | A kind of more key combination hardware reset circuits and electronic product | |
| CN204189219U (en) | A kind of capacitor induction type pattern unlocks electronic lock | |
| CN209728722U (en) | Low power-consumption intelligent touch-control electronic pen | |
| CN103560796B (en) | Matrix circuit and scan method | |
| CN206348631U (en) | The many touch-switch start-up circuits of low-power consumption | |
| CN207382278U (en) | A kind of more key combination hardware reset circuits and electronic product | |
| CN205302176U (en) | Many buttons reset circuit and have electronic product of button that resets | |
| CN205017293U (en) | Electric capacity response touch key | |
| CN202210787U (en) | Transplantable button circuit | |
| CN207502695U (en) | A kind of Multifunctional power energy detection module of general purpose engine | |
| CN206532281U (en) | Can a key enter reforestation practices E-book reader | |
| CN206542389U (en) | A kind of capacitance touch button detects circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170315 |