CN206224281U - Exchange 24V switches have the SSR controllers of the type that is galvanically isolated - Google Patents
Exchange 24V switches have the SSR controllers of the type that is galvanically isolated Download PDFInfo
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- CN206224281U CN206224281U CN201621287335.7U CN201621287335U CN206224281U CN 206224281 U CN206224281 U CN 206224281U CN 201621287335 U CN201621287335 U CN 201621287335U CN 206224281 U CN206224281 U CN 206224281U
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Abstract
The utility model is related to a kind of SSR controller of the exchange 24V switches with the type that is galvanically isolated, including an oscillator, and the output end of oscillator is connected with the input of signaling switch device；The Enable Pin EN of signaling switch device is connected with the output end Q of d type flip flop, and output end YO, Y1 of signaling switch device is connected to the primary side of the first transformer；The secondary side of the first transformer is connected with the input of rectification multiple pressuring circuit, and rectification multiple pressuring circuit carries out rectification and multiplication of voltage treatment to the high-frequency voltage signal of the secondary side of the first transformer, exports direct current signal；The output end of rectification multiple pressuring circuit is connected with the input for controlling the drive circuit of the first power MOS pipe and the second power MOS pipe；First power MOS pipe, the second power MOS pipe and, the coil of the secondary side of the second transformer and electromagnetic relay constitute loop, the normally opened contact control of electromagnetic relay is arranged between civil power and electrical equipment.The utility model be used for it is safe and reliable, system without deaerator easily is carried out to electromechanical equipment.
Description
Technical field
The utility model is related to a kind of SSR controller of the exchange 24V switches with the type that is galvanically isolated.
Background technology
With flying for microelectric technique, electronic computer technology, modern communications technology, photoelectron technology and space technology
Speed development, new requirement is proposed to relay technology, and new technology, the development of new technology undoubtedly rise to the development of relay technology
To facilitation.Microelectric technique and developing rapidly for ultra-large IC it is also proposed new requirement to relay.First is small
Type and flaking.Such as military TO-5 (8.5 × 8.5 × 7.0mm) relay of IC package, it has vibration resistance very high, can
Make equipment relatively reliable；Second is modularization and multifunction, can it is compatible with IC, can incorporated amplifier, it is desirable to sensitivity is improved
To microwatt level；3rd is total solids.Solid-state relay sensitivity is high, can anti-electromagnetic interference and Radio frequency interference.Computer technology
Popularization cause microcomputer relay demand dramatically increase, the relay with microprocessor will be developed rapidly.The beginning of the eighties,
Digital time relay produced in USA is controlled with regard to available commands to relay, and relay is sent out with the combination of microprocessor
Exhibition, can form a compact perfect control system.By the industrial robot of computer controls at present with annual 3.5% speed
Increase, now, the production system of computer controls can produce the relay of various low costs on a production line, and can be certainly
It is dynamic to complete various operations and test job.Development of the development of mechanics of communication to relay has far-reaching significance.On the one hand it is
Because developing rapidly for mechanics of communication increases the application of whole relay.On the other hand, because optical fiber will be Future Information society
The sustainer that can be transmitted, be will appear under optical-fibre communications, light sensing, optical computer, the promotion of optical information processing technology optical fiber after
The new type of relay such as electrical equipment, reed capsule fiber switch.Electromagnetic relay (EMR) is counted from initially use telephone relay, so far
Existing more than 150 years history.Along with the prominent of the development of electronics industry, particularly phase early 1970s optical coupling technology
It is broken, solid-state relay (SSR, also known as electronic relay) is a dark horse.Compared with traditional relay, it has long lifespan, knot
Structure is simple, lightweight, dependable performance the advantages of.Solid-state relay does not have mechanical switch, and with high such as with microprocessor
Degree is compatible, speed is fast, shock resistance, it is resistance to shake, the key property such as Low dark curient.Simultaneously as this product does not have mechanical contacts, do not produce
Raw electromagnetic noise, keeps Jing Yin without elements such as additional resistance and electric capacity.And traditional relay then needs this
A little add ons, therefore, traditional relay is often heavy and complicated and relatively costly.
Traditional SSR solid-state relays, typically by discrete component, film fixed resistor network and chip, using mixing work
Skill assembles to realize that control loop (input circuit) is coupled with the electric isolution and signal of load circuit (output circuit), by solid-state device
Part realizes the break-make handoff functionality of load, and inside is without any movable member.Difference is typically corresponded to using any of the above technology respectively
Application scenario, technology development is relatively ripe, and has in industry had certain standard and versatility, but
Generally also have the following disadvantages.
（1）Tube voltage drop after conducting is big, and the positive step-down of controllable silicon or two-phase control silicon is up to 1 ~ 2V, general power field effect
Contact resistance of the conducting resistance of pipe also compared with mechanical contact is big.
（2）Can still there is several microamperes to several milliamperes of leakage current after semiconductor devices shut-off, therefore preferable electricity can not be realized
Isolation.
（3）Because tube voltage drop is big, the power consumption and caloric value after conducting are also big, and the volume of high power solid state relay is much big
In the electromagnetic relay of same capacity, cost is also higher.
（4）Solid-state relay is loaded with larger sensitiveness to crossing, it is necessary to it is entered with fastp-acting fuse or RC antihunt circuits
Row overload protection.The load of solid-state relay is substantially relevant with environment temperature, and temperature is raised, and load capacity will fall rapidly upon.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of exchange 24V switches to have the SSR controls of the type that is galvanically isolated
Device processed, in order to it is safe and reliable, system without deaerator easily is carried out to electromechanical equipment.
The utility model is realized using following technical scheme to achieve the above object：One kind exchange 24V switches have electric current
The SSR controllers of isolated form, it is characterised in that：Including an oscillator, the output end of the oscillator is defeated with signaling switch device
Enter end connection, there is provided an oscillator signal；The Enable Pin EN of the signaling switch device is connected with the output end Q of d type flip flop, the letter
Output end YO, Y1 of number derailing switch is connected to the primary side of the first transformer, the signaling switch in Enable Pin EN input low levels
Device is in normal operating conditions, and output end YO, Y1 produces a high-frequency voltage signal, and in Enable Pin EN input high levels, signal is opened
Close device and be in disarmed state, output end YO, Y1 does not produce any signal；The secondary side of first transformer and rectification and voltage multiplier electricity
Road input connection, the rectification multiple pressuring circuit high-frequency voltage signal of the secondary side of the first transformer is carried out rectification and times
Pressure treatment, exports direct current signal；The output end of the rectification multiple pressuring circuit with for control the first power MOS pipe and the second power
The input connection of the drive circuit of metal-oxide-semiconductor, the source electrode of first power MOS pipe, the source electrode of the second power MOS pipe and triggering
The H0 output ends connection of circuit, the L0 of the grid, the grid of the second power MOS pipe and triggers circuit of first power MOS pipe
Output end is connected；The drain electrode of first power MOS pipe is connected with one end of the secondary side of the second transformer, second transformation
The other end of the secondary side of device is connected with one end of the coil of electromagnetic relay, the other end of the coil of the electromagnetic relay with
One end of the primary side of the drain electrode connection of the second power MOS pipe, the normally-closed contact of the electromagnetic relay and the second transformer connects
Connect, the normally opened contact of the electromagnetic relay is electrically connected with an input of electrical equipment, another input of the electrical equipment
The other end with the primary side of the second transformer is connected, and the primary side of second transformer is additionally coupled to civil power.
Further, also including a reserve battery, the secondary side of second transformer is connected with rectification circuit, described whole
Current circuit is connected with the reserve battery, and the reserve battery is connected as through an inverter circuit with the electrical equipment, is it
Power supply.
Further, first power MOS pipe and the second power MOS pipe use IPB100N10S3-05 power field effects
Pipe.
Further, the turn ratio of first transformer is 1:3.
The utility model has the advantages that compared with prior art：Combine traditional SSR and hyundai electronicses
Technology and integrated circuit, are that house and business automation field provide safer, more reliable, more flexible system without deaerator side
Formula.
Brief description of the drawings
Fig. 1 is system structure diagram of the present utility model.
Fig. 2 is the structural representation of the rectification multiple pressuring circuit of the embodiment of the utility model one.
Fig. 3 is the structural representation of the drive circuit of the embodiment of the utility model one.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
Fig. 1 is refer to, the present embodiment provides a kind of exchange 24V switches has the SSR controllers of the type that is galvanically isolated, its feature
It is：Including an oscillator, the output end of the oscillator is connected with the input of signaling switch device, there is provided a frequency is
300KHz, dutycycle are 50% oscillator signal；The Enable Pin EN of the signaling switch device is connected with the output end Q of d type flip flop,
Output end YO, Y1 of the signaling switch device is connected to the primary side of the first transformer T1, in Enable Pin EN input low levels
Signaling switch device be in normal operating conditions, output end YO, Y1 produce one close to 3V high-frequency voltage signal, it is defeated in Enable Pin EN
Signaling switch device is in disarmed state when entering high level, and output end YO, Y1 does not produce any signal；The two of first transformer
Secondary side is connected with the input of rectification multiple pressuring circuit, and the turn ratio of the first transformer is 1:3, therefore its secondary side produces 10V left
Right high frequency voltage, the rectification multiple pressuring circuit carries out rectification and multiplication of voltage to the high-frequency voltage signal of the secondary side of the first transformer
Treatment, exports the direct current signal of 18V as drive signal；The output end of the rectification multiple pressuring circuit with for control the first power
The input connection of the drive circuit of metal-oxide-semiconductor and the second power MOS pipe, the source electrode of first power MOS pipe, the second power
The source electrode of metal-oxide-semiconductor is connected with the first output end of drive circuit, the grid of first power MOS pipe, the second power MOS pipe
Grid is connected with the second output end of drive circuit；The drain electrode of first power MOS pipe and the secondary side of the second transformer T2
One end connection, the other end of the secondary side of second transformer is connected with one end of the coil L1 of electromagnetic relay, described
The other end of the coil L1 of electromagnetic relay is connected with the drain electrode of the second power MOS pipe, the normally-closed contact of the electromagnetic relay
One end with the primary side of the second transformer is connected, and the normally opened contact of the electromagnetic relay is electrically connected with an input of electrical equipment
Connect, another input of the electrical equipment is connected with the other end of the primary side of the second transformer, second transformer
Primary side is additionally coupled to civil power.
Fig. 1 is continued referring to, also including a reserve battery, the secondary side of second transformer is connected with rectification circuit,
The rectification circuit is connected with the reserve battery, and the reserve battery is connected through an inverter circuit with the electrical equipment, is
Its power supply.
It is as shown in Figure 2 the structural representation of the rectification multiple pressuring circuit of one embodiment of the invention, wherein the first transformer T1
Secondary side access T0 in CON4, T1 ends, by being made up of two voltage-multiplying circuits IN4007, by by a pair of poles of complementary type three
The linear voltage-stabilizing circuit output that pipe is constituted, by 15v voltage-regulator diodes output the termination H1, L1 of IN4744A.
It is as shown in Figure 3 the structural representation of the drive circuit of one embodiment of the invention, when drive circuit receives signal
Namely H1, L1 of rectification multiple pressuring circuit send signal in Fig. 2, and the first power MOS pipe of triggering and the second power MOS pipe enter work
Making the H0 in state, i.e. figure will open M1, the Gate ends of M2, and pipe enters closure, and the Drain of M1, M2 is connected on exchange two ends,
Positive half period will form complete ac cycle by M1, negative half-cycle by M2.
In the present embodiment, first power MOS pipe and the second power MOS pipe use IPB100N10S3-05 power fields
Effect pipe；VDS breakdown voltages are 100 V, internal resistance RDS (on), and max 4.8m Ω, ID can reach 100A.
In order to those skilled in the art can be best understood from this programme, it is situated between in detail below in conjunction with specific control method
Continue, including conduction mode and cut-off mode：
The conduction mode is comprised the following steps：
Step A1：" 1 " is input at the RPE ends of d type flip flop, the Q ends output low level of d type flip flop, the work of signaling switch device
In normal condition；
Step A2：The frequency that oscillator is produced is 300KHz, the oscillator signal that dutycycle is 50% passes through signaling switch
Device, signaling switch device output end YO, Y1 produce one close to 3V high-frequency voltage signal；
Step A3：The high-frequency voltage signal is through the 10V high frequency voltages after the first transformer transformation in rectification multiple pressuring circuit
In carry out rectification and multiplication of voltage treatment, generate a 18V direct current signal；
Step A4：In the presence of direct current signal, drive signal controls the first power MOS pipe and the second power MOS pipe to lead
Logical to constitute loop, the coil of electromagnetic relay obtains electric, and the normally opened contact positioned at electrical equipment input is closed, i.e. K1 in Fig. 1
Closure, civil power is powered for electrical equipment；
The cut-off mode is comprised the following steps：
Step B1：" 1 " is input at the CLR ends of d type flip flop, the Q ends output high level of d type flip flop, the work of signaling switch device
In disarmed state；
Step B2：The oscillator signal that oscillator is produced cannot be by signaling switch device；
Step B3：First power MOS pipe and the second power MOS pipe are in cut-off state, and the coil of electromagnetic relay is not obtained
Electricity, the normally opened contact positioned at electrical equipment input disconnects, and the K1 disconnections in Fig. 1；
Step B4：Reserve battery is by inverter circuit for electrical equipment is powered.
The foregoing is only preferred embodiment of the present utility model, it is all according to present utility model application the scope of the claims done it is equal
Deng change and modification, should all belong to covering scope of the present utility model.
Claims (4)
1. a kind of exchange 24V switches have the SSR controllers of the type that is galvanically isolated, it is characterised in that：It is described to shake including an oscillator
The output end for swinging device is connected with the input of signaling switch device, there is provided an oscillator signal；The Enable Pin EN of the signaling switch device
It is connected with the output end Q of d type flip flop, output end YO, Y1 of the signaling switch device is connected to the primary side of the first transformer,
Signaling switch device is in normal operating conditions during Enable Pin EN input low levels, and output end YO, Y1 produces a high-frequency voltage signal,
In Enable Pin EN input high levels, signaling switch device is in disarmed state, and output end YO, Y1 does not produce any signal；Described
The secondary side of one transformer is connected with the input of rectification multiple pressuring circuit, and the rectification multiple pressuring circuit is secondary to the first transformer
The high-frequency voltage signal of side carries out rectification and multiplication of voltage treatment, exports direct current signal；The output end of the rectification multiple pressuring circuit and use
In the input connection of the drive circuit for controlling the first power MOS pipe and the second power MOS pipe, first power MOS pipe
Source electrode, the source electrode of the second power MOS pipe are connected with the H0 output ends of triggers circuit, grid, second of first power MOS pipe
The grid of power MOS pipe is connected with the L0 output ends of triggers circuit；The drain electrode of first power MOS pipe and the second transformer
One end connection of secondary side, the other end of the secondary side of second transformer is connected with one end of the coil of electromagnetic relay,
The other end of the coil of the electromagnetic relay is connected with the drain electrode of the second power MOS pipe, and the normally closed of the electromagnetic relay is touched
Point is connected with one end of the primary side of the second transformer, and the normally opened contact of the electromagnetic relay is electric with an input of electrical equipment
Connection, another input of the electrical equipment is connected with the other end of the primary side of the second transformer, second transformer
Primary side be additionally coupled to civil power.
2. exchange 24V switches according to claim 1 have the SSR controllers of the type that is galvanically isolated, it is characterised in that：Also wrap
A reserve battery is included, the secondary side of second transformer is connected with rectification circuit, the rectification circuit and the reserve battery
Connection, the reserve battery is connected as through an inverter circuit with the electrical equipment, is its power supply.
3. exchange 24V switches according to claim 1 have the SSR controllers of the type that is galvanically isolated, it is characterised in that：It is described
First power MOS pipe and the second power MOS pipe use IPB100N10S3-05 power field effect pipes.
4. exchange 24V switches according to claim 1 have the SSR controllers of the type that is galvanically isolated, it is characterised in that：It is described
The turn ratio of the first transformer is 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287335.7U CN206224281U (en) | 2016-11-29 | 2016-11-29 | Exchange 24V switches have the SSR controllers of the type that is galvanically isolated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287335.7U CN206224281U (en) | 2016-11-29 | 2016-11-29 | Exchange 24V switches have the SSR controllers of the type that is galvanically isolated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206224281U true CN206224281U (en) | 2017-06-06 |
Family
ID=58786050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621287335.7U Active CN206224281U (en) | 2016-11-29 | 2016-11-29 | Exchange 24V switches have the SSR controllers of the type that is galvanically isolated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206224281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383544A (en) * | 2016-11-29 | 2017-02-08 | 福建师范大学福清分校 | Current isolation SSR controller of alternating current 24V switch and control method thereof |
| CN113093608A (en) * | 2021-03-31 | 2021-07-09 | 东风商用车有限公司 | Microelectronic relay and whole vehicle control circuit |
-
2016
- 2016-11-29 CN CN201621287335.7U patent/CN206224281U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383544A (en) * | 2016-11-29 | 2017-02-08 | 福建师范大学福清分校 | Current isolation SSR controller of alternating current 24V switch and control method thereof |
| CN106383544B (en) * | 2016-11-29 | 2018-05-22 | 福建师范大学福清分校 | SSR controller and its control method of the exchange 24V switches with the type that is galvanically isolated |
| CN113093608A (en) * | 2021-03-31 | 2021-07-09 | 东风商用车有限公司 | Microelectronic relay and whole vehicle control circuit |
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