CN108270425A - A kind of general lock control device based on H-bridge circuit - Google Patents
A kind of general lock control device based on H-bridge circuit Download PDFInfo
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- CN108270425A CN108270425A CN201810187435.XA CN201810187435A CN108270425A CN 108270425 A CN108270425 A CN 108270425A CN 201810187435 A CN201810187435 A CN 201810187435A CN 108270425 A CN108270425 A CN 108270425A
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- 238000002955 isolation Methods 0.000 claims abstract description 52
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000013021 overheating Methods 0.000 claims description 9
- 230000006641 stabilisation Effects 0.000 claims description 9
- 238000011105 stabilization Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000007257 malfunction Effects 0.000 abstract description 3
- 230000003534 oscillatory effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 8
- 230000003071 parasitic effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
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Abstract
The invention discloses a kind of general lock control devices based on H-bridge circuit, the general lock control device based on H-bridge circuit sends control signal by MCU module, then pass through isolation optocoupler, again by the way that H bridge drive modules are realized to electric lock, intelligence is locked, electromagnetic lock and dry node interface class door lock control, upper various types of door locks of regulating the market can be compatible with by realizing single equipment.In addition device anti-seismic performance provided by the invention is good, it will not cause to open by mistake lock because of mechanical oscillatory structure, and anti-high-intensity magnetic field interference, it will not be interfered by high-intensity magnetic fields such as strong magnets and cause malfunction, pass through the design of isolated power supply and isolation optocoupler, the safety of device is also assured on the basis of the compatibility and reliability for ensuring control system, there is very strong market application foreground.
Description
Technical field
The present invention relates to control circuit technical field more particularly to a kind of general lock control devices based on H-bridge circuit.
Background technology
Dress type before lock on the market is generally fallen at present, usual lock controller (such as access controller) only provide a kind of
The interface of type lock, in Construction Specifications period, the type of lock is just fixed up.Currently used lock is divided into electricity according to control mode
Lock, intelligence lock, electromagnetic lock, the mode for doing node control.Wherein electric lock and intelligence lock is to power on unlocking, and electromagnetic lock is opened for power-off
Lock, the lock of dry node control are then controlled by normally-open normally-close switching.
Change project currently for Jiu Gai communities are old, many old communities are faced with ageing equipment, need replacing gate inhibition's control
Device processed adds an access control equipment supplemented outer, and the door lock type of different communities is different, this results in old change to need replacing
Access controller need compatible door lock control modes various types of on the market.
Door lock controller is designed using relay, flexibility is big, and suitability is good, but relay is due to being electromagnetic type knot
Structure, anti-seismic performance is weak, and relay misoperation is made caused by moment external force is possible；Relay adds in strong magnetic to high-intensity magnetic field sensitivity, the external world
Field can also cause relay misoperation to be made；Although therefore relay can be adapted to various types of locks, reliability is not high.This
Outside, by the door lock controller of transistor design, generally directed to electric lock, electromagnetic lock, and the lock of dry node control is needed to be not suitable for.
In view of this, it is necessary to propose that current general lock control technology is further improved.
Invention content
To solve an above-mentioned at least technical problem, the main object of the present invention is to provide a kind of based on the general of H-bridge circuit
Lock control device.
To achieve the above object, the technical solution adopted by the present invention is：A kind of general lock control based on H-bridge circuit is provided
Device, the general lock control device based on H-bridge circuit include：
MCU module, the MCU module are used to send control signal according to user instruction；
First isolation optocoupler module, the input terminal of the first isolation optocoupler module are connected by GPIO interface and MCU module
It connects；
Second isolation optocoupler module, the input terminal of the second isolation optocoupler module are connected by GPIO interface and MCU module
It connects；
H bridge drive modules, the H bridges drive module include：First driving input terminal, the second driving input terminal, driving electricity
Source input terminal, the first drive output and the second drive output, the first driving input terminal and the first isolation optocoupler module
Output terminal is electrically connected, and the second driving input terminal is electrically connected with the second isolation optocoupler module output terminal；
Isolated power module, the input terminal of the isolated power supply is isolated with output terminal by high frequency transformer, described
Isolated power module is electrically connected with the first isolation optocoupler module, the second isolation optocoupler module and H bridge drive modules, for being
One isolation optocoupler module, the second isolation optocoupler module and the power supply of H bridges drive module.
Wherein, the H bridges drive module includes：
H-bridge circuit, the H-bridge circuit include：First switch unit, second switch unit, third switch unit and the 4th
Switch unit, the first switch unit and the series connection of second switch unit, the third switch unit and the 4th switch unit string
Connection, and the branch circuit parallel connection connected with first switch unit and second switch unit forms H-bridge circuit, first drive output
It is set between first switch unit, second switch unit, second drive output is set to third switch unit, the 4th
Between switch unit.
Wherein, the H bridges drive module further includes：
Control circuit, the control circuit are equipped with the described first driving input terminal and the second driving input terminal, the control
Circuit output end is electrically connected with the H-bridge circuit.
Wherein, the H bridges drive module further includes：
Charge pump circuit, the charge pump circuit are electrically connected respectively with the isolated power module and the control circuit
It connects.
Wherein, the H bridges drive module further includes：
Overheating protection circuit, the overheating protection circuit are set between the charge pump circuit and the control circuit,
And it is electrically connected with charge pump circuit and control circuit.
Wherein, the first switch unit of the H-bridge circuit, second switch unit, third switch unit and the 4th switch are single
Member is MOSFET.
Wherein, the isolated power module further includes：
Linear voltage stabilization unit, the isolated power module pass through linear voltage stabilization unit and the first isolation optocoupler module,
Two isolation optocoupler modules and the electrical connection of H bridges drive module.
Wherein, the input terminal shunt capacitance C1 of the linear voltage stabilization unit and polar capacitor C4, the regulated power supply it is defeated
Outlet shunt capacitance C3 and polar capacitor C2.
Wherein, the output terminal of the first isolation optocoupler module is parallel with capacitance C5, the second isolation optocoupler module
Output terminal is parallel with capacitance C6.
Technical scheme of the present invention provides a kind of general lock control device based on H-bridge circuit and sends control by MCU module
Signal processed, then by isolation optocoupler, then realized to electric lock by H bridge drive modules, intelligence is locked, electromagnetic lock and dry node
Interface class door lock controls, and upper various types of door locks of regulating the market can be compatible with by realizing single equipment.In addition the present invention provides
Device anti-seismic performance it is good, will not lead to open by mistake lock because of mechanical oscillatory structure, and anti-high-intensity magnetic field interferes, will not be by strong magnet
High-intensity magnetic fields interference is waited to cause malfunction, by the design of isolated power supply and isolation optocoupler, is ensuring the simultaneous of control system
The safety of device is also assured on the basis of capacitive and reliability, there is very strong market application foreground.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Structure according to these attached drawings obtains other attached drawings.
Fig. 1 is a kind of block diagram of the general lock control device based on H-bridge circuit of one embodiment of the invention；
Fig. 2 is a kind of mould of the H bridge drive modules of the general lock control device based on H-bridge circuit of another embodiment of the present invention
Block block diagram；
Fig. 3 is a kind of H-bridge circuit structural representation of the general lock control device based on H-bridge circuit of another embodiment of the present invention
Figure；
Fig. 4 is a kind of first isolation optocoupler mould of the general lock control device based on H-bridge circuit of another embodiment of the present invention
The circuit diagram of block, the second optical coupling module and H bridge drive modules；
Fig. 5 is a kind of isolated power supply module of the general lock control device based on H-bridge circuit of another embodiment of the present invention
Circuit diagram.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the description of " first ", " second " etc. involved in the present invention be only used for description purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution
Conflicting or can not realize when occur will be understood that the combination of this technical solution is not present, also not the present invention claims guarantor
Within the scope of shield.
Fig. 1 is please referred to, it in embodiments of the present invention, should be described to be based on H based in the general lock control device of H-bridge circuit
The general lock control device of bridge circuit includes：
MCU module 100, the MCU module 100 are used to send control signal according to user instruction；
First isolation optocoupler module 201, the input terminal of the first isolation optocoupler module 201 pass through GPIO interface and MCU
Module connection 100；
Second isolation optocoupler module 202, the input terminal of the second isolation optocoupler module 202 pass through GPIO interface and MCU
Module 100 connects；
H bridges drive module 500, the H bridges drive module 500 include：First driving input terminal, second driving input terminal,
Light is isolated with first in driving power input terminal, the first drive output and the second drive output, the first driving input terminal
201 output terminal of coupling module is electrically connected, and the second driving input terminal is electrically connected with 202 output terminal of the second isolation optocoupler module
It connects；
Isolated power module 300, the input terminal of the isolated power supply 300 and output terminal by high frequency transformer every
From the isolated 300 and first isolation optocoupler module 201 of power module, the second isolation optocoupler module 202 and H bridges driving mould
Block 500 is electrically connected, for being supplied for the first isolation optocoupler module 201, the second isolation optocoupler module 202 and H bridges drive module 500
Electricity.
Specifically, in the present embodiment, the first isolation optocoupler module 201 and the second isolation optocoupler module 202 are connect by GPIO
It receives from MCU module 100 and sends control signal.Light-coupled isolation is exactly to be isolated using photo-coupler.The structure phase of photo-coupler
It is packaged together when in light emitting diode and phototriode.Optical coupling isolation circuit makes not having between segregate two parts circuit
There is being directly connected to for electricity, mainly prevent from interfering because caused by having the connection of electricity, isolation high pressure, the isolation between strong and weak electricity
Performance is fine, in addition, optocoupler category current mode device, can effectively inhibit voltage endurance noise.
With reference to figure 4, in one embodiment, the output terminal of the first isolation optocoupler module 201 is parallel with capacitance C5,
The output terminal of the second isolation optocoupler module 202 is parallel with capacitance C6.
In the present embodiment, capacitance in parallel reduces the signal noise of optical coupling module output for filtering.
Isolated power module 300, the input terminal of the isolated power supply 300 and output terminal by high frequency transformer every
From.Isolated power supply refers to that outputting and inputting the isolated power supply being electrically connected by magnetic elements such as transformers refers to input
Be electrically connected with output by the magnetic elements such as transformer, even if output short-circuit there will not be too big problem, for every
Output voltage from formula power supply can be adjusted by transformer, can effectively ensure the safety of system.
In a specific embodiment, referring to Fig. 3, the H bridges drive module 500 includes：
H-bridge circuit 501, the H-bridge circuit 501 include：First switch unit, second switch unit, third switch unit
With the 4th switch unit, the first switch unit and the series connection of second switch unit, the third switch unit and the 4th switch
Unit is connected, and the branch circuit parallel connection composition H-bridge circuit 501 connected with first switch unit and second switch unit, and described first
Drive output is set between first switch unit, second switch unit, and second drive output is set to third and opens
It closes between unit, the 4th switch unit.
First drive output OUT1, the second drive output OUT2 of H-bridge drive circuit is respectively connected to the control of tapered end
End, referring to following table, (wherein H represents interface driver output high level to specific input/output state, and L represents driving and exports low electricity
Flat, Open is represented without driving fan-out capability)：
| Function | IN1 | IN2 | OUT1 | OUT2 |
| State 1 | H | L | H | L |
| State 2 | L | H | L | H |
| State 3 | H | H | L | L |
| State 4 | L | L | Open | Open |
It is locked for electric lock or intelligence, under normal condition, electric lock or intelligence lock are closed state, and it is shape that the output of H bridges, which is state,
State 3；Unlocking condition, H bridges need to export a high level pulse to enable the function module inside lock, the transformation of H bridges output at this time
For state 1.
For electromagnetic lock, electromagnetic lock is also known as principle of the magnetic key operated lock using electric magnetisation, when electric current passes through silicon steel sheet, electromagnetic lock
The absorption iron plate that is sucked of powerful suction tightly can be generated to achieve the effect that lock a door.Therefore under normal condition, electromagnetic lock needs one
Straight-through electricity, at this time H bridges output are state 1；When unlocking condition, electromagnetic lock needs to power off, and H bridges output at this time can give shape
State 3.
For the lock with dry node control, dry node is a kind of electric switch, has 2 states of open and close.It is logical
When often lock internal logic detects switching of the dry node by being disconnected to closed state, lock can be opened.Therefore under normal condition, H
Bridge output is state 4；And moment of unlocking, H bridges are then exported as state 3.
In conclusion the general lock control device based on H-bridge circuit that is somebody's turn to do in the present embodiment passes through MCU module transmission control
Signal, then by isolation optocoupler, then by the way that H bridge drive modules are realized to electric lock, intelligence is locked, electromagnetic lock and dry node connect
The door lock control of mouth class, upper various types of door locks of regulating the market can be compatible with by realizing single equipment.In addition it is provided by the invention
Device anti-seismic performance is good, will not cause to open by mistake lock, and anti-high-intensity magnetic field is interfered because of mechanical oscillatory structure, will not be by strong magnet etc.
High-intensity magnetic field interference causes malfunction, by the design of isolated power supply and isolation optocoupler, in the compatibility for ensuring control system
Property and reliability on the basis of also assure the safety of device, there is very strong market application foreground.
With reference to figure 2, Fig. 3, in one embodiment, the H bridges drive module 500 further includes：
Control circuit 502, the control circuit 502 are equipped with the described first driving input terminal and the second driving input terminal, institute
Control circuit output terminal is stated to be electrically connected with the H-bridge circuit 501.
With reference to figure 2, Fig. 3, in one embodiment, the H bridges drive module 500 further includes：
Charge pump circuit 503, the charge pump circuit 503 respectively with the isolated power module 300 and the control
Circuit 502 processed is electrically connected.
The charge pump is also known as switched capacitor voltage changer, and the course of work of charge pump includes：Energy storage first
Amount, then releases energy in a controlled manner, to obtain required output voltage.Switch type regulator booster using inductor come
Storing energy, and capacitive charge pump using capacitor come storing energy.It, which acts on essentially consisting in, eliminates inductor and transformer
The magnetic field carried and electromagnetic interference.
With reference to figure 2, Fig. 3, in one embodiment, the H bridges drive module 500 further includes：
Overheating protection circuit 504, the overheating protection circuit 504 are set to the charge pump circuit 503 and the control
Between circuit 502, and it is electrically connected with charge pump circuit 503 and control circuit 502.
Overheating protection is exactly that temperature just starts corresponding defencive function when being more than a certain threshold values.When electronic device works all
Can generate heat, setting overheating protection circuit 502 i.e. but realize overheating protection function, when outside line, equipment are abnormal, cause
During such as short circuit scene, chip due to relatively high power output cause temperature be more than respective thresholds will starting protection, improve dress
The reliability put.
With reference to figure 3, Fig. 4, in one embodiment, first switch unit, the second switch list of the H-bridge circuit 501
Member, third switch unit and the 4th switch unit are MOSFET.
Wherein, it is in parallel between the source electrode of the specific MOSFET and drain electrode to be equipped with parasitic diode.
Parasitic diode is as caused by production technology, and high-power MOS tube drain electrode is drawn from silicon chip bottom, just has this
Parasitic diode.Metal-oxide-semiconductor in small-power metal-oxide-semiconductor such as integrated chip is planar structure, and drain electrode lead direction is from silicon chip
Above namely with the same directions such as source electrode, without this diode.
Parasitic diode effect is, when generating very big moment reverse current in circuit, can pass through this two pole
Pipe export comes, and is unlikely to puncture this metal-oxide-semiconductor.The parasitic diode primarily serves the effect of protection metal-oxide-semiconductor, improves dress
The reliability put.
With reference to figure 5, in one embodiment, the isolated power module 300 further includes：
Linear voltage stabilization unit, the isolated power module 300 pass through linear voltage stabilization unit and the first isolation optocoupler module
201st, the second isolation optocoupler module 202 and H bridges drive module 500 are electrically connected.
Linear voltage stabilization unit in the present embodiment realized by voltage-stablizer ams1117-3.3, the AMS1117-
3.3 be the positive low dropout voltage regulator that a kind of output voltage is 3.3V.
In one embodiment, the input terminal shunt capacitance C1 of the linear voltage stabilization unit and polar capacitor C4, it is described
The output terminal shunt capacitance C3 of regulated power supply and polar capacitor C2.
Wherein, it for the capacitance parallel connection of different types is usually that a perception is strong, a perception is weak to use two capacitances.It is small
Capacity high-frequency signal easily passes through, and large bulk capacitance low frequency signal easily passes through.The access that bulky capacitor can be provided in low frequency,
And filtering access can not be provided since its parasitic inductance will become larger there are impedance in high frequency, so bulky capacitor cannot filter height
Frequently, and small capacitances impedance in low frequency is too big and can not provide filtering access.Two capacitances it is in parallel act as big that of capacitance
It is a for filtering, that small capacitance is the inductance characteristic generated for eliminating big capacitance in high frequency.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
The equivalent structure transformation made under the inventive concept of invention using description of the invention and accompanying drawing content or directly/utilization indirectly
It is included in the scope of patent protection of the present invention in other related technical areas.
Claims (9)
- A kind of 1. general lock control device based on H-bridge circuit, which is characterized in that the general lock control based on H-bridge circuit Device includes：MCU module, the MCU module are used to send control signal according to user instruction；First isolation optocoupler module, the input terminal of the first isolation optocoupler module are connect by GPIO interface with MCU module；Second isolation optocoupler module, the input terminal of the second isolation optocoupler module are connect by GPIO interface with MCU module；H bridge drive modules, the H bridges drive module include：First driving input terminal, the second driving input terminal, driving power are defeated Enter end, the first drive output and the second drive output, the first driving input terminal and the first isolation optocoupler module export End electrical connection, the second driving input terminal are electrically connected with the second isolation optocoupler module output terminal；Isolated power module, the input terminal of the isolated power supply are isolated with output terminal by high frequency transformer, the isolation Formula power module is electrically connected with the first isolation optocoupler module, the second isolation optocoupler module and H bridge drive modules, for for first every It powers from optical coupling module, the second isolation optocoupler module and H bridges drive module.
- A kind of 2. general lock control device based on H-bridge circuit as described in claim 1, which is characterized in that the H bridges driving Module includes：H-bridge circuit, the H-bridge circuit include：First switch unit, second switch unit, third switch unit and the 4th switch Unit, the first switch unit and the series connection of second switch unit, the third switch unit and the series connection of the 4th switch unit, and The branch circuit parallel connection connected with first switch unit and second switch unit forms H-bridge circuit, the first drive output setting Between first switch unit, second switch unit, second drive output is set to third switch unit, the 4th switch Between unit.
- A kind of 3. general lock control device based on H-bridge circuit as claimed in claim 2, which is characterized in that the H bridges driving Module further includes：Control circuit, the control circuit are equipped with the described first driving input terminal and the second driving input terminal, the control circuit Output terminal is electrically connected with the H-bridge circuit.
- A kind of 4. general lock control device based on H-bridge circuit as claimed in claim 3, which is characterized in that the H bridges driving Module further includes：Charge pump circuit, the charge pump circuit are electrically connected respectively with the isolated power module and the control circuit.
- A kind of 5. general lock control device based on H-bridge circuit as claimed in claim 4, which is characterized in that the H bridges driving Module further includes：Overheating protection circuit, the overheating protection circuit are set between the charge pump circuit and the control circuit, and with Charge pump circuit and control circuit electrical connection.
- 6. such as a kind of general lock control device based on H-bridge circuit of claim 2-5 any one of them, which is characterized in that institute First switch unit, second switch unit, third switch unit and the 4th switch unit for stating H-bridge circuit are MOSFET.
- 7. a kind of general lock control device based on H-bridge circuit as claimed in claim 6, which is characterized in that described isolated Power module further includes：Linear voltage stabilization unit, the isolated power module by linear voltage stabilization unit and the first isolation optocoupler module, second every It is electrically connected from optical coupling module and H bridges drive module.
- 8. a kind of general lock control device based on H-bridge circuit as claimed in claim 7, which is characterized in that described linear steady Press the input terminal shunt capacitance C1 of unit and polar capacitor C4, the output terminal shunt capacitance C3 and polar capacitor of the regulated power supply C2。
- 9. a kind of general lock control device based on H-bridge circuit as claimed in claim 8, which is characterized in that described first every Output terminal from optical coupling module is parallel with capacitance C5, and the output terminal of the second isolation optocoupler module is parallel with capacitance C6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810187435.XA CN108270425A (en) | 2018-03-07 | 2018-03-07 | A kind of general lock control device based on H-bridge circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810187435.XA CN108270425A (en) | 2018-03-07 | 2018-03-07 | A kind of general lock control device based on H-bridge circuit |
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| CN108270425A true CN108270425A (en) | 2018-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818774A (en) * | 2021-08-05 | 2021-12-21 | 深圳市优必选科技股份有限公司 | Automatic door control method and device and robot |
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