CN209570903U - A kind of industrial computer power supply adaptor with backup power supply - Google Patents
A kind of industrial computer power supply adaptor with backup power supply Download PDFInfo
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- CN209570903U CN209570903U CN201920776945.0U CN201920776945U CN209570903U CN 209570903 U CN209570903 U CN 209570903U CN 201920776945 U CN201920776945 U CN 201920776945U CN 209570903 U CN209570903 U CN 209570903U
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Abstract
The utility model discloses a kind of industrial computer power supply adaptor with backup power supply, it includes exchange input interface, exchange input interface by AC-DC circuit respectively with power supply switching circuit for detection and charge-discharge control circuit, charge-discharge control circuit is connect with battery and governor circuit respectively, battery is connect with power supply switching circuit for detection, power sense circuit is successively connect with output voltage stabilizing circuit and output interface, governor circuit is connect with communicating circuit and triggering shutdown circuit respectively, communicating circuit is connect with communication interface, and triggering shutdown circuit is connect with triggering interface.The power supply that the utility model is able to solve industrial computer in the prior art lacks the problem of accident power-off protection, and simple circuit is reliable, overall structure is small in size, has economic and practical and reliability.
Description
Technical field
The utility model relates to a kind of industrial control system power supply fields, and in particular to a kind of work with backup power supply
Industry computer power adapter.
Background technique
When industrial computer is usually run, industrial computer operating system collapse or hard can be caused because of accident power-off
Part damage needs to design a kind of safeguard measure and carries out accident power-off protection to industrial computer.Due to inside industrial computer
Through not extra space, so the existing protection to industrial computer power supply, usually redesigns industrial computer structure,
To increase the position for backup power source to be arranged；Or setting backup power source, it is uninterrupted to be carried out to industrial computer
Power supply, guarantees its work.But the cost of both modes is all higher, in actual production, after industrial computer power-off, such as goes out
Existing production accident does not need industrial computer at this time yet and keeps uninterrupted work, but guarantees the controllable shutdown of system,
Guarantee the safety of the information such as workpiece monitoring.Therefore, when existing industrial computer power supply can not effectively solve accident power-off
Power demands.
Utility model content
The utility model is directed to above-mentioned deficiency in the prior art, provides one kind and is able to solve industry meter in the prior art
The power supply of calculation machine lacks the industrial computer power supply adaptor with backup power supply of the problem of accident power-off protection.
In order to solve the above technical problems, the utility model uses following technical proposal:
Provide a kind of industrial computer power supply adaptor with backup power supply comprising exchange input interface exchanges defeated
Incoming interface is connect by AC-DC circuit with charge-discharge control circuit, charge-discharge control circuit respectively with battery, governor circuit and electricity
Switching circuit connection is detected in source, and battery connect with power supply switching circuit for detection, power sense circuit successively with output voltage stabilizing circuit
It is connected with output interface, governor circuit is connect with communicating circuit and triggering shutdown circuit respectively, and communicating circuit and communication interface connect
It connects, triggering shutdown circuit is connect with triggering interface.
In above-mentioned technical proposal, it is preferred that governor circuit includes controller U2, and U2 is single-chip microcontroller.
In above-mentioned technical proposal, it is preferred that the model STC12C5A16S2 of controller U2.
In above-mentioned technical proposal, it is preferred that power supply switching circuit for detection includes metal-oxide-semiconductor Q1, and the pole G of Q1 passes through triode Q2
Ground connection, the pole S and AC-DC circuit connection, the pole D is connect with output voltage stabilizing circuit；The pole D of Q1 is connected by metal-oxide-semiconductor Q4 and Q3 and battery
It connects；Comparator U1B is provided between the pole S of Q4 and the base stage of Q2, the pole D of Q3 and the S interpolar of Q1 are provided with comparator U1A.
In above-mentioned technical proposal, it is preferred that output voltage stabilizing circuit includes buck converter U4, one end of U4 and the pole D of Q1
Connection, the other end are connect with output interface.
In above-mentioned technical proposal, it is preferred that charge-discharge control circuit includes metal-oxide-semiconductor Q31, the pole S of Q31 and AC-DC circuit
Connection, the pole D of Q31 are connect with controller U2, and the pole D of Q31 and S interpolar are parallel with charging-discharging controller U3, and U3 is connect with battery.
In above-mentioned technical proposal, it is preferred that the model LTC4006 of charging-discharging controller U3.
In above-mentioned technical proposal, it is preferred that communicating circuit includes level translator U5, U5 respectively with controller U2 and communication
Interface connection.
In above-mentioned technical proposal, it is preferred that the model MAX232 of level translator U5.
In above-mentioned technical proposal, it is preferred that triggering shutdown circuit includes switching power source chip U6, U6 respectively with controller U2
It is connected with triggering interface.
The main beneficial effect of the above-mentioned industrial computer power supply adaptor with backup power supply provided by the utility model exists
In:
The utility model is by entering the direct current that AC-DC circuit obtains via exchange input interface for conventional external power supply
Voltage, after charge-discharge control circuit, into power supply switching circuit for detection, output voltage stabilizing circuit after directly as normal power supplies
Output；Charge-discharge control circuit can charge again for battery, stop after battery is full of.
After the 220V of external power supply powers power-off, power supply switching circuit for detection is immediately switched to battery power supply, and battery is defeated
Out after output voltage stabilizing circuit, burning voltage is exported.Meanwhile governor circuit starts timing, and after reaching setting time, master control electricity
Road issues off signal, triggering industrial computer shutdown by triggering shutdown circuit and communicating circuit.
For the utility model relative to existing structure, simple circuit is reliable；Need to only power finite time for industrial computer, because
This demand to battery is small, and overall structure is small in size, saves cost, has economic and practical；Shutdown circuit is triggered by setting
And communicating circuit, have switch triggering shutdown and serial communication triggering two kinds of triggering shutdown modes of shutdown, to guarantee shutdown behaviour
The reliability of work, the case where avoiding dead battery capability from powering off industrial computer to greatest extent appearance.
Detailed description of the invention
Fig. 1 is the circuit logic relational graph of the utility model.
Fig. 2 is the circuit diagram of power supply switching circuit for detection.
Fig. 3 is the circuit diagram of governor circuit.
Fig. 4 is the circuit diagram of charge-discharge control circuit.
Fig. 5 is the circuit diagram of output voltage stabilizing circuit.
Fig. 6 is the circuit diagram of communicating circuit.
Fig. 7 is the circuit diagram for triggering shutdown circuit.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, it is the structural schematic diagram of the industrial computer power supply adaptor with backup power supply.
The industrial computer power supply adaptor with backup power supply of the utility model includes exchange input interface, exchange input
Interface is connect by AC-DC circuit with charge-discharge control circuit, charge-discharge control circuit respectively with battery, governor circuit and power supply
Detect switching circuit connection, battery connect with power supply switching circuit for detection, power sense circuit successively with output voltage stabilizing circuit and
Output interface connection, governor circuit are connect with communicating circuit and triggering shutdown circuit respectively, and communicating circuit is connect with communication interface,
Triggering shutdown circuit is connect with triggering interface.
Specifically, governor circuit includes controller U2, U2 is single-chip microcontroller, and model can be STC12C5A16S2, such as Fig. 3 institute
Show.
As shown in Fig. 2, power supply switching circuit for detection includes metal-oxide-semiconductor Q1, the pole G of Q1 is grounded by triode Q2, the pole S with
AC-DC circuit connection, the pole D are connect with output voltage stabilizing circuit；The pole D of Q1 is connect by metal-oxide-semiconductor Q4 and Q3 with battery.
Comparator U1B is provided between the pole S of Q4 and the base stage of Q2, the pole D of Q3 and the S interpolar of Q1 are provided with comparator U1A,
The OUT terminal of U1A is connected by the pole D of triode Q5 and Q3, and is connected by the pole D of triode Q6 and Q4；U1A's and U1B is defeated
Enter positive IN+ to connect with the DC voltage after AC-DC circuit conversion.
Specifically, the principle of power detecting switching are as follows:
AC-DC power supply is compared with the voltage of setting is by comparator, when AC-DC supply voltage is greater than setting voltage, i.e.,
Think that external power supply ACC exists, comparator U1A exports low level at this time, and control Q5, Q6, Q3, Q4 are not turned on, and shutdown battery supplies
Electricity；Comparator U1B exports high level, and control Q2, Q1 conducting, AC-DC circuit is for conducting and externally exporting.
When AC-DC circuit supply voltage is lower than setting voltage, that is, think that external power supply ACC is disconnected, comparator U1A output
High level, control Q5, Q6, Q3, Q4 conducting, connects battery power supply；U1B comparator exports low level, and control Q2, Q1 are not turned on, electricity
Pond is for conducting output.
Optionally, the voltage value set on comparator U1A, U1B be greater than load voltage value, such as 220V, setting voltage value with
The difference of load voltage value is window voltage, it is possible thereby to reference voltage of the voltage value for making AC-DC circuit power in setting
When neighbouring, it can be avoided and toggle caused switching loss.
As shown in figure 5, output voltage stabilizing circuit includes buck converter U4, MP1584EN is can be selected in the model of U4, at this time U4
VIN interface and the pole D of Q1 connect, SW interface connect with output interface.By the way that output voltage stabilizing circuit is arranged, AC-DC is converted
The voltage pressure stabilizing output of voltage and battery output afterwards, for industrial computer power supply.
As shown in figure 4, charge-discharge control circuit includes metal-oxide-semiconductor Q31, the pole S of Q31 and AC-DC circuit connection, the pole D of Q31
It is connect with controller U2, the pole D of Q31 and S interpolar are parallel with charging-discharging controller U3.
LTC4006 can be selected in the model of U3, and U3 is connected by the pole G of INFET interface and Q31 at this time, passes through DCIN interface
It is connect with the pole S of Q31, the pole the D connection of CLP interface and Q31；The TGATE interface and BGATE interface of Q31 pass through respectively inductance with
Battery connection judges whether to need to continue to charge to detect the voltage of battery；The BAT interface of Q31 is connect to be filled with battery
Electricity.
As shown in fig. 6, communicating circuit includes level translator U5.The model of U5 can be MAX232, at this time U5 respectively with control
Device U2 processed is connected with communication interface, and by the way that communicating circuit is arranged, industrial computer shutdown is triggered in a manner of serial communication.
As shown in fig. 7, triggering shutdown circuit includes U6 and Q61, the model S8050 of the model G5V-1, Q61 of U6,
Q61 is connect with controller U2, and U6 is connect with triggering interface, is triggered shutdown circuit by setting, is closed in a manner of switch triggering
Industrial computer.
By the cooperation of communicating circuit and triggering shutdown circuit, power supply adaptor provided by the utility model is made to have switch
Triggering shutdown and serial communication triggering two kinds of triggering shutdown modes of shutdown, to guarantee the reliability of power-off operation, to greatest extent
The case where avoiding dead battery capability from powering off industrial computer appearance.
Here be working principle of the utility model is:
When external ac power source ACC power supply when, external power supply via exchange input interface enter AC-DC circuit obtain it is straight
Galvanic electricity pressure, after charge-discharge control circuit, into power supply switching circuit for detection, output voltage stabilizing circuit after directly as conventional electricity
Source output, and power to component each in power supply adaptor；Another way passes through charging-discharging controller after charge-discharge control circuit
U3 is that battery charges and detects its voltage, is stopped after battery is full of.
After external power supply ACC, which powers, to be powered off, power supply switching circuit for detection is immediately switched to battery power supply, battery output warp
After crossing output voltage stabilizing circuit, burning voltage is exported.
Meanwhile the controller U2 of governor circuit starts timing, after reaching setting time, governor circuit passes through triggering shutdown electricity
Road and communicating circuit issue off signal, triggering industrial computer shutdown.
Specific embodiment of the present utility model is described above, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all are created using the utility model of the utility model design in the column of protection.
Claims (10)
1. a kind of industrial computer power supply adaptor with backup power supply, which is characterized in that including exchanging input interface, exchange defeated
Incoming interface is connect by AC-DC circuit with charge-discharge control circuit, charge-discharge control circuit respectively with battery, governor circuit and electricity
Switching circuit connection is detected in source, and battery connect with power supply switching circuit for detection, power sense circuit successively with output voltage stabilizing circuit
It is connected with output interface, governor circuit is connect with communicating circuit and triggering shutdown circuit respectively, and communicating circuit and communication interface connect
It connects, triggering shutdown circuit is connect with triggering interface.
2. the industrial computer power supply adaptor according to claim 1 with backup power supply, which is characterized in that the master control
Circuit includes controller U2, and U2 is single-chip microcontroller.
3. the industrial computer power supply adaptor according to claim 2 with backup power supply, which is characterized in that the control
The model STC12C5A16S2 of device U2.
4. the industrial computer power supply adaptor according to claim 3 with backup power supply, which is characterized in that the power supply
Detecting switching circuit includes metal-oxide-semiconductor Q1, and the pole G of Q1 is grounded by triode Q2, the pole S and AC-DC circuit connection, the pole D and output
Voltage regulator circuit connection；The pole D of Q1 is connect by metal-oxide-semiconductor Q4 and Q3 with battery；Comparator is provided between the pole S of Q4 and the base stage of Q2
The pole D of U1B, Q3 and the S interpolar of Q1 are provided with comparator U1A.
5. the industrial computer power supply adaptor according to claim 4 with backup power supply, which is characterized in that the output
Voltage regulator circuit includes buck converter U4, and one end of U4 and the pole D of Q1 connect, and the other end is connect with output interface.
6. the industrial computer power supply adaptor according to claim 5 with backup power supply, which is characterized in that the charge and discharge
Electric control circuit includes metal-oxide-semiconductor Q31, and the pole D of Q31 and AC-DC circuit connection, the pole S of Q31 are connect with controller U2, the D of Q31
Pole and S interpolar are parallel with charging-discharging controller U3, and U3 is connect with battery.
7. the industrial computer power supply adaptor according to claim 6 with backup power supply, which is characterized in that the charge and discharge
The model LTC4006 of electric controller U3.
8. the industrial computer power supply adaptor according to claim 3 with backup power supply, which is characterized in that the communication
Circuit includes level translator U5, and U5 is connect with controller U2 and communication interface respectively.
9. the industrial computer power supply adaptor according to claim 8 with backup power supply, which is characterized in that the level
The model MAX232 of converter U5.
10. the industrial computer power supply adaptor according to claim 3 with backup power supply, which is characterized in that the touching
Hair shutdown circuit includes switching power source chip U6, and U6 is connect with controller U2 and triggering interface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776945.0U CN209570903U (en) | 2019-05-27 | 2019-05-27 | A kind of industrial computer power supply adaptor with backup power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776945.0U CN209570903U (en) | 2019-05-27 | 2019-05-27 | A kind of industrial computer power supply adaptor with backup power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209570903U true CN209570903U (en) | 2019-11-01 |
Family
ID=68335834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920776945.0U Active CN209570903U (en) | 2019-05-27 | 2019-05-27 | A kind of industrial computer power supply adaptor with backup power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209570903U (en) |
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2019
- 2019-05-27 CN CN201920776945.0U patent/CN209570903U/en active Active
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