CN208805695U - Terminal start control circuit and data collection station - Google Patents
Terminal start control circuit and data collection station Download PDFInfo
- Publication number
- CN208805695U CN208805695U CN201821354625.8U CN201821354625U CN208805695U CN 208805695 U CN208805695 U CN 208805695U CN 201821354625 U CN201821354625 U CN 201821354625U CN 208805695 U CN208805695 U CN 208805695U
- Authority
- CN
- China
- Prior art keywords
- power module
- resistance
- control circuit
- start control
- terminal start
- 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.)
- Active
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model relates to a kind of terminal start control circuit and data collection station, which includes Magnetic sucking switch and power module, and power module includes power input Vin, enable end EN and operating voltage output end SW；The power input Vin of power module is for connecting power supply；The enable end EN of power module connects power supply by Magnetic sucking switch；The enable end EN of power module is also used to connect the enable signal output end of the master controller of terminal；The operating voltage output end SW of power module is used to connect the operating voltage input terminal of master controller.The utility model realizes without key power up function have a wide range of application, is highly-safe without specially opening up key hole at the terminal, using simple circuit design.
Description
Technical field
The utility model relates to power switch fields, acquire eventually more particularly to a kind of terminal start control circuit and data
End.
Background technique
The start-up mode of terminal is generally the mechanically actuated mode of physical button etc at present, but physical button is with using
The increase of time, service life also can slowly shorten, and it also requires opening up key hole in terminal end surface.To requiring accurate operation
For terminal, physical button easily causes maloperation.
There are also terminal using pressure sensor as switch, without in terminal end surface aperture, and can improve for
The operational safety of precision instrument, but such switch needs to add additional pressure sensor block, and needs pair in terminal again
It carries out continued power, and the interrupt requests of power supply module are then needed by the chip controls of single-chip microcontroller class, complex circuit designs
Degree will will increase.
Utility model content
Based on this, it is necessary to for terminal without key boot-strap circuit design complexity, problem at high cost, provide a kind of terminal
Start control circuit.
A kind of terminal start control circuit, including Magnetic sucking switch and power module, power module include power input
Vin, enable end EN and operating voltage output end SW；The power input Vin of power module is for connecting power supply；Power supply mould
The enable end EN of block connects power supply by Magnetic sucking switch；The enable end EN of power module is also used to connect the main control of terminal
The enable signal output end of device；The operating voltage output end SW of power module is used to connect the operating voltage input of master controller
End.
Terminal start control circuit further includes resistance R1, resistance R2 and resistance R3 in one of the embodiments,；Power supply mould
The enable end EN of block is grounded by resistance R1, and the enable end EN of power module also passes through the enabled letter of resistance R2 connection master controller
Number output end；Magnetic sucking switch first end connects power supply, and second end passes through the enable end EN of resistance R3 connection power module.
Terminal start control circuit further includes diode D1, the anode connection of diode D1 in one of the embodiments,
The enable end EN of power module, cathode connect resistance R2.
Power module is switching power source chip in one of the embodiments,.
Terminal start control circuit further includes bootstrapping unit in one of the embodiments, for increasing operating voltage；From
Lifting unit includes capacitor C1 and diode D2, the bootstrap voltage mode input pin BST of the one end capacitor C1 connection switch power supply chip, another
The anode of end connection diode D2；The minus earth of diode D2, anode also with the operating voltage output end of switching power source chip
SW connection.
Terminal start control circuit further includes voltage feedback unit in one of the embodiments, for adjusting output electricity
Pressure；Voltage feedback unit includes resistance R4, resistance R5 and capacitor C2, the feed back input of the one end resistance R4 connection switch power supply chip
Foot FB, other end ground connection；The feed back input foot FB of resistance R5 first end connection switch power supply chip, second end connect operating voltage
Output end SW；The one end capacitor C2 is connected to the first end of resistance R5, and the other end connects the second end of resistance R5.
Terminal start control circuit further includes capacitor C3, the one end capacitor C3 connection switch electricity in one of the embodiments,
The soft start foot SS of source chip, other end ground connection.
Terminal start control circuit further includes power inductance and capacitor C4, power inductance in one of the embodiments,
One end connects the operating voltage output end SW of power module, and second end connects the operating voltage input terminal of master controller；Capacitor C4
One end connects the second end of power inductance, other end ground connection.
Terminal start control circuit further includes capacitor C5 and resistance R6 in one of the embodiments,；Capacitor C5 first end
It is connected to the enable signal output end of resistance R2 and master controller, second end ground connection；The first of resistance R6 first end and capacitor C5
End connection, second end are connect with the second end of capacitor C5.
The invention also discloses a kind of data collection stations, including magnetic attracting device, power supply, master controller, electricity
Source module, Magnetic sucking switch, display screen and casing；According to terminal between power supply, master controller, Magnetic sucking switch and power module
The connection type of start control circuit is attached, and is all set in casing；Casing is equipped with display screen windows, display screen
It is set in casing, and display screen is oppositely arranged with display screen windows；Display screen and master controller are electrically connected；It is also set on casing
There is switch region, Magnetic sucking switch is set to position corresponding with switch region in casing；Magnetic attracting device is for being closed Magnetic sucking switch.
Above-mentioned terminal start control circuit, using the working principle of Magnetic sucking switch, without key can make power supply with
Power module is connected, and keeps power module enabled, and power module is to after master controller output services voltage, master controller work, magnetic
Magnetic sucking switch disconnects after suction, continues control power module by the master controller in work at this time and enables, without in end face
Key hole is opened up on plate, and circuit design is simple, can satisfy a variety of different terminals without key be switched on needs.
Detailed description of the invention
Fig. 1 is the structure chart of terminal start control circuit；
Fig. 2 is the circuit diagram of terminal start control circuit；
Fig. 3 is the structure chart of data collection station.
Specific embodiment
The utility model will be described more fully below for the ease of understanding the utility model,.But this is practical
It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to make the understanding of the disclosure of the utility model more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
The data terminal in industrial measurement and control field generally carries out switch control by following methods: directly relying on junction box
Or the modes such as plug of power socket control power on, open chassis cover manually control cabinet switch, using outside connected switch control box,
Switch control is carried out using panel push-key switch, using pressure sensor.Aforesaid way all has disadvantage, not such as safety coefficient
The problems such as high, cumbersome, at high cost, easy accidentally touching operation, complex circuit designs.
In a specific embodiment, in conjunction with shown in Fig. 1 and Fig. 2, a kind of terminal start control circuit, including magnetic are opened
K and power module 100 are closed, power module 100 includes power input Vin, enable end EN and operating voltage output end SW；Power supply
The power input Vin of module 100 is for connecting power supply 110；The enable end EN of power module 100 passes through Magnetic sucking switch K
Connect power supply 110；The enable signal that the enable end EN of power module 100 is also used to connect the master controller 120 of terminal is defeated
Outlet；The operating voltage output end SW of power module 100 is used to connect the operating voltage input terminal of master controller 120.
Magnetic sucking switch is to provide a magnetic field signal by outside to control its closure, and magnetic field signal disappears then Magnetic sucking switch
It disconnects, the utility model using Magnetic sucking switch by being booted up, detailed process are as follows: external to provide magnetic field to Magnetic sucking switch K
Signal is closed Magnetic sucking switch K, so that the enable end EN of power supply 110 and power module 100 is connected, power supply 110
The first enabled voltage is provided to power module 100, power module 100 is enabled, to master controller output services voltage VCC, make to lead
Controller enters working condition, and the enable signal output end of master controller is connect with the enable end EN of power module 100, works as outside
After magnetic field signal disappears, Magnetic sucking switch K is disconnected, and the enable end EN of power supply 110 and power module 100 is disconnected, at this time by leading
Controller is that power module 100 provides the second enabled voltage, and control power module continues to output operating voltage VCC.
The utility model is realized using simple circuit design and is switched on without key without specially opening up key hole at the terminal
Function has a wide range of application, and switchs compared to several data terminal fields for industrial measurement and control above-mentioned, easy to operate, safety
Height, circuit design are simple.The utility model may be equally applied to ordinary terminal, such as mobile phone, tablet computer mobile terminal, improve
User's use feeling.
When power supply 110 or master controller 120 are abnormal, master controller 120 is caused to export to power module 100
Voltage when being lower than the second enabled voltage, will be unable to enabled power module 100, power module 100 will close, and cut off power supply
Terminal is closed in 110 output.On the basis of realizing without key booting, while it being also provided with the function of self-shield, and electricity of powering
Source is if rechargeable battery, and terminal will disconnect automatically when electricity is lower, avoids battery and exhausts the case where scrapping, energy-saving ring
It protects.
In one of the embodiments, as shown in Fig. 2, terminal start control circuit further includes resistance R1, resistance R2 and electricity
Hinder R3；The enable end EN of power module 100 is grounded by resistance R1, and the enable end EN of power module 100 also passes through resistance R2 and connects
Connect the enable signal output end of master controller 120；Magnetic sucking switch K first end connects power supply 110, and second end passes through resistance R3
Connect the enable end EN of power module 100.
After Magnetic sucking switch K closure, since the voltage that power supply 110 provides is greater than the enabled voltage of power module 100, need
After will be by resistance R1 and resistance R3 partial pressure, then it be input to the enable end EN of power module 100；Equally, master controller exports
Voltage after needing to divide by resistance R1 and resistance R2, then is input to Switching Power Supply also greater than the enabled voltage of power module 100
The enable end EN of chip.When power module 100 enables, from operating voltage output end SW to master controller output services voltage VCC.
Terminal start control circuit further includes diode D1, the anode connection of diode D1 in one of the embodiments,
The enable end EN of power module 100, cathode connect resistance R2.
When setting diode D1 is that Magnetic sucking switch K is closed in order to prevent, electric current flows into the enable signal of master controller from Vin
Output end avoids damage master controller.
Power module is switching power source chip in one of the embodiments,.
Power module 100 is that switching power source chip does not belong to the selection of chip model such as the chip of model MP2303
In the innovative point of the utility model, those skilled in the art can select as needed, it is only necessary to be able to achieve the utility model
Function, belong to the protection scope of the utility model.
Terminal start control circuit further includes bootstrapping unit in one of the embodiments, for increasing operating voltage；From
It lifts unit 102 and includes capacitor C1 and diode D2, the bootstrap voltage mode input pin BST of the one end capacitor C1 connection switch power supply chip,
The anode of other end connection diode D2；The minus earth of diode D2, anode are also defeated with the operating voltage of switching power source chip
Outlet SW connection.
Voltage using diode D2 and capacitor C1, the discharge voltage and operating voltage output end SW output that make capacitor C1 is folded
Add, so that the operating voltage VCC of output be made to increase.
Terminal start control circuit further includes voltage feedback unit 101 in one of the embodiments, for adjusting output
Voltage；Voltage feedback unit 101 include resistance R4, resistance R5 and capacitor C2, the one end resistance R4 connection switch power supply chip it is anti-
Present input pin FB, other end ground connection；The feed back input foot FB of resistance R5 first end connection switch power supply chip, second end connect work
Make voltage output end SW；The one end capacitor C2 is connected to the first end of resistance R5, and the other end connects the second end of resistance R5.
After operating voltage VCC is by capacitor C2 and resistance R5 filtering, is divided with resistance R4, be input to feed back input foot
FB, the out-put supply for regulating switch power supply chip have the function that pressure stabilizing.
Terminal start control circuit further includes capacitor C3, the one end capacitor C3 connection switch electricity in one of the embodiments,
The soft start foot SS of source chip, other end ground connection.
Soft start foot SS is grounded through capacitor C3, constitutes soft starting circuit, when being used for power initiation, is reduced surge current, is made
Output voltage slowly rises, and reduces the influence to input power.
Terminal start control circuit further includes power inductance and capacitor C4, power inductance in one of the embodiments,
One end connects the operating voltage output end SW of power module, and second end connects the operating voltage input terminal of master controller；Capacitor C4
One end connects the second end of power inductance, other end ground connection.
Power inductance L and capacitor C4 is set, oscillation and filtering are played to the operating voltage VCC that power module 100 exports
Effect.
Terminal start control circuit further includes capacitor C5 and resistance R6 in one of the embodiments,；Capacitor C5 first end
It is connected between resistance R2 and the enable signal output end of master controller, second end ground connection；Resistance R6 first end is with capacitor C5's
First end connection, second end are connect with the second end of capacitor C5.
Capacitor C5 and resistance R6 constitutes filter circuit, filters to the voltage of master controller enable signal output end output
Wave.
In another specific embodiment, as shown in figure 3, a kind of data collection station, including magnetic attracting device 130, confession
Power supply 110, master controller 120,100 Magnetic sucking switch K display screen of power module and casing；Power supply 110, master controller
120, it is attached, and is all provided with according to the connection type of terminal start control circuit between Magnetic sucking switch K and power module 100
It is placed in casing；Casing is equipped with display screen windows, and display screen is set in casing, and display screen is opposite with display screen windows sets
It sets；Display screen and master controller 120 are electrically connected；Switch region is additionally provided on casing, Magnetic sucking switch K is set in casing and opens
Close the corresponding position in region；Magnetic attracting device 130 is for being closed Magnetic sucking switch K.
Magnetic attracting device 130 provides magnetic field signal for the Magnetic sucking switch K in power module 100, controls its closure, makes to power
Power supply 110 accesses the first enabled voltage to power module 100, and power module 100 is enabled, to master controller output services voltage
After VCC removes its work, magnetic attracting device 130, magnetic field signal is lost, Magnetic sucking switch K is disconnected, and master controller is to power module
100 the second enabled voltages of access, make power module continue to keep working condition.
In conjunction with Fig. 1, Fig. 2, the working principle of the utility model terminal start control circuit is described in detail:
Power supply 110 connects the power input of power module 100, and magnetic attracting device 130 provides magnetic field to Magnetic sucking switch K
Signal, control Magnetic sucking switch K closure, input voltage vin is after resistance R3 and resistance R1 partial pressure, to the enabled of power module 100
EN is held to input the first enabled voltage, power module 100 is enabled, exports by operating voltage output end SW, and pass through bootstrapping unit
After carrying out boosting superposition, by power inductance L, output services voltage VCC, operating voltage VCC, main control are provided to master controller
Magnetic attracting device 130 is removed in device work, and power supply 110 disconnects the first enabled voltage, and the enable signal output end of master controller is defeated
Voltage out inputs the second enabled voltage, power supply after resistance R2 and resistance R1 partial pressure, to the enable end EN of power module 100
Module 100 continues to keep working condition.
When power supply 110 or master controller are abnormal, the voltage that causes master controller to export to power module 100
When lower than the second enabled voltage, enabled power module 100 will be unable to, power module 100 will close, cutting power supply 110
Terminal is closed in output.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of terminal start control circuit, which is characterized in that including Magnetic sucking switch and power module, the power module includes
Power input Vin, enable end EN and operating voltage output end SW；
The power input Vin of the power module is for connecting power supply；
The enable end EN of the power module connects the power supply by the Magnetic sucking switch；
The enable end EN of the power module is also used to connect the enable signal output end of the master controller of terminal；
The operating voltage output end SW of the power module is used to connect the operating voltage input terminal of the master controller.
2. terminal start control circuit according to claim 1, which is characterized in that the terminal start control circuit is also wrapped
Include resistance R1, resistance R2 and resistance R3；
The enable end EN of the power module is grounded by resistance R1, and the enable end EN of the power module also passes through resistance R2 and connects
Connect the enable signal output end of the master controller；
The Magnetic sucking switch first end connects the power supply, and second end connects the enabled of the power module by resistance R3
Hold EN.
3. terminal start control circuit according to claim 2, which is characterized in that the terminal start control circuit is also wrapped
Diode D1 is included,
The anode of the diode D1 connects the enable end EN of the power module, and cathode connects resistance R2.
4. terminal start control circuit according to claim 2, which is characterized in that the power module is Switching Power Supply core
Piece.
5. terminal start control circuit according to claim 4, which is characterized in that the terminal start control circuit is also wrapped
Bootstrapping unit is included, for increasing the operating voltage；
The bootstrapping unit includes capacitor C1 and diode D2,
The one end the capacitor C1 connects the bootstrap voltage mode input pin BST of the switching power source chip, and the other end connects two pole
The anode of pipe D2；
The minus earth of the diode D2, anode are also connect with the operating voltage output end SW of the switching power source chip.
6. terminal start control circuit according to claim 4, which is characterized in that the terminal start control circuit is also wrapped
Voltage feedback unit is included, for adjusting output voltage；
The voltage feedback unit includes resistance R4, resistance R5 and capacitor C2,
The one end the resistance R4 connects the feed back input foot FB of the switching power source chip, other end ground connection；
The resistance R5 first end connects the feed back input foot FB of the switching power source chip, and second end connects the operating voltage
Output end SW；
The one end the capacitor C2 is connected to the first end of the resistance R5, and the other end connects the second end of the resistance R5.
7. terminal start control circuit according to claim 4, which is characterized in that the terminal start control circuit is also wrapped
Capacitor C3 is included, the one end the capacitor C3 connects the soft start foot SS of the switching power source chip, other end ground connection.
8. terminal start control circuit according to claim 3, which is characterized in that the terminal start control circuit is also wrapped
Power inductance and capacitor C4 are included,
The power inductance first end connects the operating voltage output end SW of the power module, and second end connects the main control
The operating voltage input terminal of device；
The one end the capacitor C4 connects the second end of the power inductance, other end ground connection.
9. terminal start control circuit according to claim 4, which is characterized in that the terminal start control circuit is also wrapped
Include capacitor C5 and resistance R6；
The capacitor C5 first end is connected between the resistance R2 and the enable signal output end of the master controller, second end
Ground connection；
The resistance R6 first end is connect with the first end of the capacitor C5, and second end is connect with the second end of the capacitor C5.
10. a kind of data collection station, which is characterized in that including magnetic attracting device, power supply, master controller, power module, magnetic
Suction switch, display screen and casing；
Between the power supply, the master controller, the Magnetic sucking switch and the power module, according to claim 1~9
The connection type of described in any item terminal start control circuits is attached, and is all set in the casing；
The casing is equipped with display screen windows, and the display screen is set in the casing, and the display screen is shown with described
Display screen window is oppositely arranged；
The display screen and the master controller are electrically connected；
Switch region is additionally provided on the casing, the Magnetic sucking switch is set to corresponding with the switch region in the casing
Position；
The magnetic attracting device is for being closed the Magnetic sucking switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821354625.8U CN208805695U (en) | 2018-08-21 | 2018-08-21 | Terminal start control circuit and data collection station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821354625.8U CN208805695U (en) | 2018-08-21 | 2018-08-21 | Terminal start control circuit and data collection station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208805695U true CN208805695U (en) | 2019-04-30 |
Family
ID=66235581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821354625.8U Active CN208805695U (en) | 2018-08-21 | 2018-08-21 | Terminal start control circuit and data collection station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208805695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828993A (en) * | 2018-08-21 | 2018-11-16 | 广州杰赛科技股份有限公司 | Terminal start control circuit and data collection station |
-
2018
- 2018-08-21 CN CN201821354625.8U patent/CN208805695U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828993A (en) * | 2018-08-21 | 2018-11-16 | 广州杰赛科技股份有限公司 | Terminal start control circuit and data collection station |
| CN108828993B (en) * | 2018-08-21 | 2024-01-05 | 广州杰赛科技股份有限公司 | Terminal startup control circuit and data acquisition terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9979282B2 (en) | Charge pump for low power consumption apparatus and associated methods | |
| CN105790356A (en) | Data line having charging circuit | |
| CN110495086A (en) | Voltage translator circuit, electronic device and voltage conversion method including it | |
| CN208805695U (en) | Terminal start control circuit and data collection station | |
| CN106992668B (en) | A kind of alternating current-direct current Mixed design DC power supply | |
| CN207965806U (en) | System and electronic equipment are restarted in power supply | |
| CN107561991A (en) | A kind of switching on and shutting down management circuit and terminal | |
| CN207424583U (en) | A kind of switching on and shutting down management circuit and terminal | |
| CN108828993A (en) | Terminal start control circuit and data collection station | |
| CN209215905U (en) | Zero-power-consumption standby wake-up circuit and electrical equipment | |
| CN208337532U (en) | Power control circuit and power control | |
| CN107358932B (en) | A kind of power control circuit and method, display device | |
| CN109118744A (en) | A kind of Digiplex | |
| CN109814437A (en) | Zero-power-consumption standby wake-up circuit and electrical equipment | |
| CN207459705U (en) | A kind of protection drive module | |
| CN206490464U (en) | Portable power source charging device | |
| CN107095564A (en) | A kind of curtain controller | |
| CN208904994U (en) | A kind of radio-frequency front-end port multiplexing circuit | |
| CN208445336U (en) | A kind of portable power suitable for flat panel detector | |
| CN209329961U (en) | A kind of power control circuit and electronic equipment | |
| WO2020000932A1 (en) | Wireless power bank and discharge control method therefor | |
| CN208316364U (en) | A kind of battery power-supplying circuit | |
| CN110244880A (en) | Touch-control circuit and display device | |
| US20140349718A1 (en) | Wireless signal controlling circuit | |
| CN207835053U (en) | Attachment interface short-circuit preventing device, terminal and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |