CN107589699A - A kind of relay output state keeping method and solid-state relay used - Google Patents
A kind of relay output state keeping method and solid-state relay used Download PDFInfo
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- CN107589699A CN107589699A CN201710869006.6A CN201710869006A CN107589699A CN 107589699 A CN107589699 A CN 107589699A CN 201710869006 A CN201710869006 A CN 201710869006A CN 107589699 A CN107589699 A CN 107589699A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
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- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The invention discloses a kind of relay output state keeping method and solid-state relay used, this method be by setting state retaining circuit, make relay remain powered off before output state, realize that state keeps function；Solid-state relay used in this method, including relay circuit（1）, relay circuit（1）Pass through solid-state relay circuit input end（10）With state retaining circuit（2）Connection, the other end and out-put supply（3）Connection；The state retaining circuit（2）Including single-chip microcomputer（4）, single-chip microcomputer（4）In be provided with data accumulating unit（5）, single-chip microcomputer（4）With bias supply（6）With input common port（7）Connection.The solid-state relay of the present invention remains to the working condition before remaining powered off when restoring electricity after a loss of power, and there is state to keep function, can effectively reduce because accident power-off and caused by influence.
Description
Technical field
The present invention relates to a kind of electronic device, particularly a kind of relay output state keeping method and solid relay used
Device.
Background technology
Solid-state relay（Solid State Relay, abridge SSR）, it is a kind of to be all made up of solid state electrical components
New noncontacting switch device, it utilizes electronic component (such as semiconductor devices such as FET, switch triode, controllable silicons)
The purpose of switching characteristic, with can reach contactless no-spark make-and-break contact, therefore it is otherwise known as " noncontacting switch ".
Solid-state relay is divided into the solid-state relay of no bias supply and has the solid-state relay of bias supply；Without biased electrical
The solid-state relay in source（As shown in Figure 3）In application circuit, when switching K closures, relay output end is connected, when switch K breaks
When opening, relay output end shut-off, stateless keeps function.
There is the solid-state relay of bias supply（As shown in Figure 4）In application circuit, normally apply bias supply, as switch K
During closure, relay output end connect, when switch K disconnect when, relay output end shut-off, after bias supply powers off again on
When electric, relay working condition is relevant with switch K state, and stateless keeps function.
Therefore, existing solid-state relay is when power supply recovery after power cut is powered, it is difficult to the work before remaining powered off
State, do not possess state and keep function.
The content of the invention
It is an object of the present invention to provide a kind of relay output state keeping method and solid-state relay used.This hair
When bright solid-state relay restores electricity after a loss of power, the working condition before remaining powered off is remained to, there is state to keep function, energy
Effectively reduce because accident power-off and caused by influence.
Technical scheme：A kind of relay output state keeping method, this method are kept by setting state
Circuit, make relay remain powered off before output state, realize state keep function.
In a kind of foregoing relay output state keeping method, methods described is the profit by setting state retaining circuit
With the output state and output control pulse before the single-chip microcomputer meter relay power-off being located in state retaining circuit, make relay
Output state before remaining powered off, realize that state keeps function.
The single-chip microcomputer, it is by data accumulating unit record in a kind of foregoing relay output state keeping method
Working condition before relay power-off；By I/O-3 mouth control relay circuits, the work for being recorded relay output single-chip microcomputer
Make state；Pulse is controlled by I/O-1 the and I/O-2 mouths input of single-chip microcomputer, changes the output state of relay.
Solid-state relay used in a kind of foregoing relay output state keeping method, including relay circuit, relay
Device circuit is connected by solid-state relay circuit input end with state retaining circuit, and the other end is connected with out-put supply；The shape
State holding circuit includes single-chip microcomputer, and data accumulating unit is provided with single-chip microcomputer, and single-chip microcomputer connects with bias supply and input common port
Connect.
In foregoing solid-state relay, the single-chip microcomputer is provided with input control port and output control port, I/O-1 and
I/O-2 is input control port, and I/O-3 is output control port, and to connect control terminal, I/O-2 is controlled the I/O-1 for shut-off
End, single-chip microcomputer are connected by I/O-3 mouths with solid-state relay circuit input end.
In foregoing solid-state relay, the relay circuit is without bias supply solid-state relay or has bias supply to consolidate
Body relay；The no bias supply solid-state relay circuit input end is that high level is effective；It is described have bias supply solid after
Appliance circuit input is that high level is effective or low level is effective.
Compared with prior art, solid-state relay working power is kept for state by the bias supply of setting, connects control
System and shut-off control are pulse signal, when relay is on-state, apply control pulse connecting control terminal, relay is still
Remain turned on, when turning off control terminal application control pulse, relay switchs to off state by on-state；Work as relay
For off state when, apply control pulse in shut-off control terminal, relay is still held off, and applies control connecting control terminal
During pulse processed, relay switchs to on-state by off state；When biased electrical source recovery after power cut is powered, relay is kept
Output state before power down.Realize that state keeps function.
By setting single-chip microcomputer（Also known as microcontroller, it is abbreviated as MCU）, its built-in E2PROM or other has repeatable change
Write, the data accumulating unit of power down holding function, as relay working condition mnemon, for writing the output of relay
State, the I/O-1 mouths and I/O-2 mouths of single-chip microcomputer are used as input control pulse, and I/O-3 mouths are used to control solid-state relay to input
Circuit, turn on and off solid-state relay.
When electric in biased electrical source, single-chip microcomputer first reads the value of relay supervisor's state mnemon, then according to it
Value determines the working condition of relay, and controls solid-state relay circuit by I/O-3, makes solid-state relay output single-chip microcomputer institute
The working condition of memory.
Relay make pulse is effective, and relay in an ON state and remembers its working condition, and make pulse recovers nothing
After effect, relay remains turned on.
Relay shut-off pulse it is effective, relay is off state and remembers its working condition, shut-off pulse-recovery without
After effect, relay is held off.
Above-mentioned single-chip microcomputer control function, realize, SCM program processing step is as follows by SCM program：
The first step：Initialization；
Second step：Output state data are read, output port is delivered to after processing；
3rd step：Read input control port information；
4th step：Judge whether connection control terminal is effective, control terminal is effective, and control signal is connected in output if connecting；If connect
Control terminal is invalid, then judges whether shut-off control terminal is effective；If it is effective to turn off control terminal, output shut-off control signal；If close
Disconnected control terminal is invalid, and return re-reads input control port information.
The solid-state relay of the present invention can be applied to the continuous works of needs such as the control of epidemic disaster, gas supply, power supply supply
The field of work, can effectively reduce because accident power-off and caused by influence.
In summary, when solid-state relay of the invention restores electricity after a loss of power, the work shape before remaining powered off is remained to
State, have state keep function, can effectively reduce because accident power-off and caused by influence.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the theory diagram of the present invention；
Fig. 3 is no bias supply solid-state relay theory diagram；
Fig. 4 is that have bias supply solid-state relay theory diagram;
Fig. 5 is single-chip microcomputer control program outline flowchart.
Mark in accompanying drawing for：1- relay circuits, 2- state retaining circuits, 3- out-put supplies, 4- single-chip microcomputers, 5- data
Mnemon, 6- bias supplies, 7- input common ports, 8- connect control terminal, 9- shut-off control terminals, 10- solid-state relay circuits
Input.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment 1.A kind of relay output state keeping method, as depicted in figs. 1 and 2, this method is by setting shape
State holding circuit, make relay remain powered off before output state, realize state keep function.
Methods described is by setting state retaining circuit, and relay is recorded using the single-chip microcomputer being located in state retaining circuit
Device power-off before output state and output control pulse, make relay remain powered off before output state, realize state keep work(
Energy；The single-chip microcomputer, it is the working condition before being powered off by data accumulating unit record relay；By I/O-3 mouths control after
Appliance circuit, the working condition for being recorded relay output single-chip microcomputer；Control is inputted by I/O-1 the and I/O-2 mouths of single-chip microcomputer
Pulse processed, change the output state of relay.
Solid-state relay used in above-mentioned relay output state keeping method, including relay circuit 1, relay circuit
1 is connected by solid-state relay circuit input end 10 with state retaining circuit 2, and the other end is connected with out-put supply 3；The state
Holding circuit 2 includes single-chip microcomputer 4, and data accumulating unit 5 is provided with single-chip microcomputer 4, and single-chip microcomputer 4 and bias supply 6 and input are public
The connection of end 7；The single-chip microcomputer 4 is provided with input control port and output control port, and I/O-1 and I/O-2 are input control terminal
Mouthful, I/O-3 is output control port, and the I/O-1 is connects control terminal 8, and I/O-2 is shut-off control terminal 9, and single-chip microcomputer 4 passes through
I/O-3 mouths are connected with solid-state relay circuit input end 10；The relay circuit 1 is without bias supply solid-state relay；Institute
It is effective for high level to state solid-state relay circuit input end 10.
Embodiment 2.A kind of relay output state keeping method, this method be by setting state retaining circuit, make after
Electrical equipment remain powered off before output state, realize state keep function.
Methods described is by setting state retaining circuit, and relay is recorded using the single-chip microcomputer being located in state retaining circuit
Device power-off before output state and output control pulse, make relay remain powered off before output state, realize state keep work(
Energy；The single-chip microcomputer, it is the working condition before being powered off by data accumulating unit record relay；By I/O-3 mouths control after
Appliance circuit, the working condition for being recorded relay output single-chip microcomputer；Control is inputted by I/O-1 the and I/O-2 mouths of single-chip microcomputer
Pulse processed, change the output state of relay.
Solid-state relay used in above-mentioned relay output state keeping method, including relay circuit 1, relay circuit
1 is connected by solid-state relay circuit input end 10 with state retaining circuit 2, and the other end is connected with out-put supply 3；The state
Holding circuit 2 includes single-chip microcomputer 4, and data accumulating unit 5 is provided with single-chip microcomputer 4, and single-chip microcomputer 4 and bias supply 6 and input are public
The connection of end 7；The single-chip microcomputer 4 is provided with input control port and output control port, and I/O-1 and I/O-2 are input control terminal
Mouthful, I/O-3 is output control port, and the I/O-1 is connects control terminal 8, and I/O-2 is shut-off control terminal 9, and single-chip microcomputer 4 passes through
I/O-3 mouths are connected with solid-state relay circuit input end 10；The relay circuit 1 is to have bias supply solid-state relay；Institute
It is effective for high level to state solid-state relay circuit input end 10.
Embodiment 3.A kind of relay output state keeping method, this method be by setting state retaining circuit, make after
Electrical equipment remain powered off before output state, realize state keep function.
Methods described is by setting state retaining circuit, and relay is recorded using the single-chip microcomputer being located in state retaining circuit
Device power-off before output state and output control pulse, make relay remain powered off before output state, realize state keep work(
Energy；The single-chip microcomputer, it is the working condition before being powered off by data accumulating unit record relay；By I/O-3 mouths control after
Appliance circuit, the working condition for being recorded relay output single-chip microcomputer；Control is inputted by I/O-1 the and I/O-2 mouths of single-chip microcomputer
Pulse processed, change the output state of relay.
Solid-state relay used in above-mentioned relay output state keeping method, including relay circuit 1, relay circuit
1 is connected by solid-state relay circuit input end 10 with state retaining circuit 2, and the other end is connected with out-put supply 3；The state
Holding circuit 2 includes single-chip microcomputer 4, and data accumulating unit 5 is provided with single-chip microcomputer 4, and single-chip microcomputer 4 and bias supply 6 and input are public
The connection of end 7；The single-chip microcomputer 4 is provided with input control port and output control port, and I/O-1 and I/O-2 are input control terminal
Mouthful, I/O-3 is output control port, and the I/O-1 is connects control terminal 8, and I/O-2 is shut-off control terminal 9, and single-chip microcomputer 4 passes through
I/O-3 mouths are connected with solid-state relay circuit input end 10；The relay circuit 1 is to have bias supply solid-state relay；Institute
It is effective for low level to state solid-state relay circuit input end 10.
Operation principle：The solid-state relay of the present invention, is to integrate state retaining circuit 2 and solid-state relay SSR circuits
Formed in same encapsulation, by setting single-chip microcomputer 4 and setting E in single-chip microcomputer 42PROM or other has repeatable change
Write, the data accumulating unit 5 of power down holding function, as relay working condition mnemon, for writing the defeated of relay
Do well, two I/O mouths of single-chip microcomputer 4 are used as input control pulse, and an I/O mouth is used to control solid-state relay circuit 1, made
Solid-state relay turns on and off.
When electric on offset side, single-chip microcomputer 4 first reads the value of relay status mnemon, then according to its value determine after
The working condition of electrical equipment, and solid-state relay circuit 1 is controlled by I/O-3, make what solid-state relay output single-chip microcomputer 4 was remembered
Working condition.Relay make pulse is effective, and relay in an ON state and remembers its working condition, and make pulse recovers nothing
After effect, relay remains turned on；Relay shut-off pulse is effective, and relay is off state and remembers its work shape
State, after shut-off pulse-recovery is invalid, relay is held off.
SCM program processing step, as shown in figure 5,：
The first step：Initialization；
Second step：Output state data are read, output port is delivered to after processing；
3rd step：Read input control port information；
4th step：Judge whether connection control terminal is effective, control terminal is effective, and control signal is connected in output if connecting；If connect
Control terminal is invalid, then judges whether shut-off control terminal is effective；If it is effective to turn off control terminal, output shut-off control signal；If close
Disconnected control terminal is invalid, and return re-reads input control port information.
Claims (6)
- A kind of 1. relay output state keeping method, it is characterised in that：This method be by setting state retaining circuit, make after Electrical equipment remain powered off before output state, realize state keep function.
- A kind of 2. relay output state keeping method according to claim 1, it is characterised in that：Methods described is to pass through State retaining circuit is set, and the output state before being powered off using the single-chip microcomputer meter relay being located in state retaining circuit is simultaneously defeated Go out to control pulse, make relay remain powered off before output state, realize state keep function.
- A kind of 3. relay output state keeping method according to claim 2, it is characterised in that：The single-chip microcomputer, it is Working condition before being powered off by data accumulating unit record relay；By I/O-3 mouth control relay circuits, make relay The working condition that output single-chip microcomputer is recorded；By I/O-1 the and I/O-2 mouths input control pulse of single-chip microcomputer, change relay Output state.
- 4. according to consolidating used in a kind of relay output state keeping method described in claim 1,2 or 3 any claims Body relay, it is characterised in that：Including relay circuit（1）, relay circuit（1）Pass through solid-state relay circuit input end （10）With state retaining circuit（2）Connection, the other end and out-put supply（3）Connection；The state retaining circuit（2）Including monolithic Machine（4）, single-chip microcomputer（4）In be provided with data accumulating unit（5）, single-chip microcomputer（4）With bias supply（6）With input common port（7）Even Connect.
- 5. solid-state relay according to claim 4, it is characterised in that：The single-chip microcomputer（4）It is provided with input control terminal Mouth and output control port, I/O-1 and I/O-2 are input control port, and I/O-3 is output control port, and the I/O-1 is to connect Logical control terminal（8）, I/O-2 is shut-off control terminal（9）, single-chip microcomputer（4）Pass through I/O-3 mouths and solid-state relay circuit input end （10）Connection.
- 6. solid-state relay according to claim 4, it is characterised in that：The relay circuit（1）For without bias supply Solid-state relay has bias supply solid-state relay；The no bias supply solid-state relay circuit input end（10）For high electricity It is flat effective；It is described to have bias supply solid-state relay circuit input end（10）It is effective or low level is effective for high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869006.6A CN107589699A (en) | 2017-09-22 | 2017-09-22 | A kind of relay output state keeping method and solid-state relay used |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869006.6A CN107589699A (en) | 2017-09-22 | 2017-09-22 | A kind of relay output state keeping method and solid-state relay used |
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| Publication Number | Publication Date |
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| CN107589699A true CN107589699A (en) | 2018-01-16 |
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| CN201710869006.6A Pending CN107589699A (en) | 2017-09-22 | 2017-09-22 | A kind of relay output state keeping method and solid-state relay used |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10814726B2 (en) | 2018-09-21 | 2020-10-27 | Contemporary Amperex Technology Co., Limited | Control apparatus and power supply system |
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| CN106681207A (en) * | 2016-12-23 | 2017-05-17 | 浙江大学 | Single-chip microcomputer power switch doubling as shifting module and control method thereof |
| CN207473342U (en) * | 2017-09-22 | 2018-06-08 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of solid-state relay that there is output state and keep |
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2017
- 2017-09-22 CN CN201710869006.6A patent/CN107589699A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000350360A (en) * | 1999-06-01 | 2000-12-15 | Nec Eng Ltd | Power supply control system |
| CN103676673A (en) * | 2012-08-31 | 2014-03-26 | 海尔集团公司 | Cleaning device with zero standby power consumption as well as control circuit and control method thereof |
| CN203242571U (en) * | 2013-03-07 | 2013-10-16 | 杨彤 | Relay control circuit and device |
| CN103475347A (en) * | 2013-09-10 | 2013-12-25 | 贵州航天电器股份有限公司 | Single-tube-type self-hold solid state relay |
| CN103475346A (en) * | 2013-09-10 | 2013-12-25 | 贵州航天电器股份有限公司 | Multi-transistor self-sustaining type solid state relay |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10814726B2 (en) | 2018-09-21 | 2020-10-27 | Contemporary Amperex Technology Co., Limited | Control apparatus and power supply system |
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