CN209448743U - A kind of relay amplification device and relay amplifier - Google Patents
A kind of relay amplification device and relay amplifier Download PDFInfo
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- CN209448743U CN209448743U CN201920179789.XU CN201920179789U CN209448743U CN 209448743 U CN209448743 U CN 209448743U CN 201920179789 U CN201920179789 U CN 201920179789U CN 209448743 U CN209448743 U CN 209448743U
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Abstract
A kind of relay amplification device and relay amplifier, it includes switch power module, power conversion module, signal conversion module and multiple signal isolation conversion modules, switch power module generates the first DC power supply according to electric main, power conversion module generates multiple second DC voltages according to the first DC power supply, data multiplex conversion signal generates multiple first data multiplex conversion signals to signal conversion module based on the received, multiple signal isolation conversion modules generate differential signal according to the second DC voltage and the first data multiplex conversion signal respectively, to control the switch state of load.Multiple second DC voltages are generated by power conversion module and multiple signal isolation conversion modules are set, to widen the number of vias of relay amplification device, traditional scheme can be substituted to be isolated when expanding number of vias using power frequency or using by the way of not being isolated, do not go the same way interactional in diminution overall volume solution while reducing product cost.
Description
Technical field
The utility model belongs to optical network data transmission technical field more particularly to a kind of relay amplification device and relaying is put
Big device.
Background technique
Currently, in DMX (Data MultipleXer, data multiplexer) protocol control system, since it is used
The technological deficiency of RS485 agreement itself causes its transmission range limited, is unable to satisfy the required distance of project installation, usually needs
It adds relaying enlarging function or expands number of vias；However, expanding multichannel number does not have isolation features, when wherein certain path loss bad when
The information transmission and control of whole system can be destroyed；To make to expand multichannel number realization isolation features, need to be isolated using power frequency
Mode, it is not only bulky, cost is expensive, but also can not achieve alternating current and direct current input all there is buffer action.
Therefore, there are at high cost and volume is big when realizing isolation features for the relay amplification device in traditional technical solution
The problem of.
Utility model content
The utility model provides a kind of relay amplification device and relay amplifier, it is intended to solve in traditional technical solution
There are at high cost and bulky problems when realizing isolation features for relay amplification device.
The utility model is realized in this way a kind of relay amplification device, comprising:
For generating the switch power module of the first DC power supply according to electric main；
It is connect with the switch power module, for generating multiple second DC voltages according to first DC power supply
Power conversion module；
The signal conversion of multiple first data multiplex conversion signals is generated for data multiplex conversion signal based on the received
Module；And
It is multiple to be connected with the power conversion module, the signal conversion module and load, it is respectively used to according to
Second DC voltage and the first data multiplex conversion signal generate differential signal, to control the switch state of the load
Signal isolation conversion module.
In one of the embodiments, the power conversion module include: it is multiple connect with the switch power module, point
The power supply conversion isolation module of the first DC voltage of multiple and different power supplys Yong Yu not be generated according to first DC power supply；With
It is multiple to be connect with power supply conversion isolation module, it is respectively used to generate second direct current according to first DC voltage
The Voltage stabilizing module of pressure.
The signal isolation conversion module includes: and the signal conversion module and described in one of the embodiments,
Voltage stabilizing module connection, it is more for generating the second data according to second DC voltage and the first data multiplex conversion signal
The signal isolation unit of road conversion signal；It connects, uses with the Voltage stabilizing module, the signal isolation unit and the load
In generating the differential signal according to second DC voltage and the second data multiplex conversion signal, to control described bear
The signal conversion unit of the switch state of load.
The power supply conversion isolation module includes: in one of the embodiments,
It is connect with the switch power module, for generating the first pulsating dc voltage according to first DC power supply
Voltage conversion unit；It is connect with the voltage conversion unit, it is multiple and different for being generated according to first pulsating dc voltage
The voltage isolated location of second pulsating dc voltage of power supply；And it is multiple connect with the voltage isolated location, be respectively used to root
The rectification filtering unit of first DC voltage is generated according to second pulsating dc voltage.
The voltage conversion unit includes: voltage transformation chip, first diode, first in one of the embodiments,
Capacitor, the second capacitor, third capacitor, first resistor, second resistance, 3rd resistor and the 4th resistance；The first resistor
The power end of first end, the first end of the first capacitor and the voltage transformation chip connects altogether and constitutes the voltage conversion
The input terminal of unit, the second end of the first resistor, the driving tube collector terminal of the voltage transformation chip, the electricity
The switching tube collector terminal of peak point current sampling end and the voltage transformation chip that buckling changes chip connects altogether, the electricity
The first end that buckling changes the output voltage sampling end of chip, the first end of the second resistance and the 3rd resistor connects altogether,
The first end of the timing capacitor terminals of the voltage transformation chip, the first end of the 4th resistance and second capacitor
It connects altogether, the switching tube emitter exit of the voltage transformation chip and the cathode of the first diode connect altogether and constitute described
The output end of voltage conversion unit, the ground terminal of the voltage transformation chip, the second end of the 3rd resistor, the 4th resistance
Second end, the second end of second capacitor, the anode of the second end of the third capacitor and the first diode it is total
It connects, the second end of the second end of the first capacitor, the second end of the second resistance and the third capacitor is connected to ground altogether.
The voltage isolated location includes: including primary side winding, the first vice-side winding, in one of the embodiments,
First transformer of two vice-side windings and third vice-side winding；The first end of the primary side winding is the voltage isolated location
Input terminal, the second end of the primary side winding is connected to ground, and the first end of first vice-side winding is that the voltage is isolated
First output end of unit, the second end of first vice-side winding are connected to the first power ground, second vice-side winding
First end is the second output terminal of the voltage isolated location, and the second end of second vice-side winding is connected to second source
Ground, the first end of the third vice-side winding are the third output end of the voltage isolated location, the third vice-side winding
Second end is connected to third power ground.
In one of the embodiments, the signal isolation unit include: photo-coupler, the 5th resistance, the 6th resistance with
And the 7th resistance；The first end of 5th resistance is the signal input part of the signal isolation unit, the 5th resistance
Second end is connect with the cathode terminal of the photo-coupler, and the anode tap of the photo-coupler is the first of the signal isolation unit
The first end of power input, the output end of the photo-coupler and the 6th resistance connects altogether constitutes the signal isolation unit
Signal output end, the enable end of the photo-coupler connect with the first end of the 7th resistance, the electricity of the photo-coupler
The second end of source, the second end of the 6th resistance and the 7th resistance connects altogether constitutes the of the signal isolation unit
Two power inputs, the ground terminal of the photo-coupler are connected to the first power ground.
The signal conversion unit includes: the one 485 protocol chip, the 4th capacitor, the 8th in one of the embodiments,
Resistance and the 9th resistance；The low level of one 485 protocol chip effectively receives output enable end, the described 1st
The high level of protocol chip effectively drives output enable end, the power end of the one 485 protocol chip, the 8th resistance
First end and the first end of the 4th capacitor connect and constitute the power input of the signal conversion unit altogether, described
The driving signal input of one 485 protocol chips is the signal input part of the signal conversion unit, the of the 4th capacitor
The ground terminal at two ends, the first end of the 9th resistance and the one 485 protocol chip is connected to the first power ground altogether, and described
First drive output of one 485 protocol chips and the second end of the 8th resistance connect altogether and constitute the signal conversion unit
The first signal output end, the second end of the second drive output of the one 485 protocol chip and the 9th resistance is total
Connect and constitute the second signal output end of the signal conversion unit.
The Voltage stabilizing module includes: the first voltage stabilizing chip and the 5th capacitor in one of the embodiments,；Described first is steady
Press the power input of chip for the input terminal of the Voltage stabilizing module, the ground terminal of first voltage stabilizing chip and the 5th capacitor
First end be connected to the first power ground altogether, the second end of the power output end of first voltage stabilizing chip and the 5th capacitor is total
Connect and constitute the output end of the Voltage stabilizing module.
In addition, a kind of relay amplifier is also provided, including above-mentioned relay amplification device.
Above-mentioned relay amplification device generates the first DC power supply according to electric main by switch power module, makes electricity
Source conversion module generates multiple second DC voltages according to the first DC power supply, and is counted based on the received by signal conversion module
Multiple first data multiplex conversion signals are generated according to multipath conversion signal, to make multiple signal isolation conversion modules basis respectively
Second DC voltage and the first data multiplex conversion signal generate differential signal, to control the switch state of load；Pass through power supply
Conversion module generates multiple second DC voltages and multiple signal isolation conversion modules is arranged, to widen relay amplification device
Number of vias, traditional scheme can be substituted and be isolated when expanding number of vias using power frequency or using by the way of not being isolated, reduced
Overall volume solution does not go the same way interactional while reducing product cost.
Detailed description of the invention
Fig. 1 is the module diagram for the relay amplification device that an embodiment of the present invention provides；
Fig. 2 is the module diagram for the relay amplification device that another embodiment of the utility model provides；
Fig. 3 is the module diagram for the relay amplification device that another embodiment of the utility model provides；
Fig. 4 is the circuit diagram for the relay amplification device that another embodiment of the utility model provides.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1 shows the module diagram of the relay amplification device of the utility model preferred embodiment offer, for the ease of
Illustrate, only the parts related to this embodiment are shown, and details are as follows:
With reference to Fig. 1, a kind of relay amplification device, comprising: switch power module 10, power conversion module 20, signal conversion
Module 40 and multiple signal isolation conversion modules 30.
Wherein, switch power module 10 is used to generate the first DC power supply according to electric main；Power conversion module 20 with
Switch power module 10 connects, for generating multiple second DC voltages according to the first DC power supply；Signal conversion module 40 is used
Multiple first data multiplex conversion signals are generated in data multiplex conversion signal based on the received；Multiple signal isolation conversion modules
30 connect with power conversion module 20, signal conversion module 40 and load, are respectively used to according to the second DC voltage and first
Data multiplex conversion signal generates differential signal, to control the switch state of load.In the particular embodiment, the first direct current
Source refers to safe to the human body, that is, meets the DC power supply of safety requirement, such as 12V or 24V.Differential signal can be difference
Signal.
In the present embodiment, the first DC power supply is generated according to electric main by switch power module, converts power supply
Module generates multiple second DC voltages according to the first DC power supply, and passes through signal conversion module data multiplex based on the received
Conversion signal generates multiple first data multiplex conversion signals, to keep multiple signal isolation conversion modules straight according to second respectively
Galvanic electricity pressure and the first data multiplex conversion signal generate differential signal, to reach the switch state of far distance control load；Pass through
Power conversion module generates multiple second DC voltages and multiple signal isolation conversion modules is arranged, to widen relaying amplification
The number of vias of device can substitute traditional scheme when expanding number of vias in such a way that power frequency is isolated or use is not isolated,
Overall volume solution is reduced not go the same way interactional while reducing product cost.
Fig. 2 is referred in one of the embodiments, and power conversion module 20 includes that multiple power supplys convert isolation module 201
With multiple Voltage stabilizing modules 202.Wherein, multiple power supply conversion isolation modules 201 are connect with switch power module 10, are respectively used to root
The first DC voltage of multiple and different power supplys is generated according to the first DC power supply；First DC voltage of multiple and different power supplys refers to
The first DC voltage based on different reference potential positions；Multiple Voltage stabilizing modules 202 are connect with power supply conversion isolation module 201, point
The second DC voltage Yong Yu not be generated according to the first DC voltage.The present embodiment converts isolation module by the way that multiple power supplys are arranged
201 and multiple Voltage stabilizing modules 202, and each power supply conversion isolation module 201 is all made of power input all the way and is converted to multichannel
The mode of isolated from power output has not only widened the number of vias of relay amplification device, but also has realized Magnetic isolation by transformer, keeps away
Exempt from the relay amplification device of traditional scheme to influence each other using the data multiplex conversion signal of each access of single supply, even if
The damage of wherein one or more accesses can still transmit signal and realize control, can substitute in traditional scheme and expand access
It must be isolated using power frequency when number, also reduce product cost in the colleague for reducing overall volume.
Fig. 2 is referred in one of the embodiments, and signal isolation conversion module 30 includes signal isolation unit 301 and letter
Number converting unit 302.Wherein, signal isolation unit 301 is connect with signal conversion module 40 and Voltage stabilizing module 202, is used for basis
Second DC voltage and the first data multiplex conversion signal generate the second data multiplex conversion signal；Signal conversion unit 302 with
Voltage stabilizing module 202, signal isolation unit 301 and load connection, for being turned according to the second DC voltage and the second data multiplex
It changes signal and generates differential signal, to control the switch state of load.Multiple signal isolation conversion modules 30 of the present embodiment pass through
Multiple the second DC voltages with different electrical power ground are received as power supply, turn multiple first data multiplex to realize
It changes signal and carries out signal isolation, to obtain the second data multiplex conversion signal of multiple and different power supplys, so that the multiple pass expanded
Road has isolation features, even if wherein one or more is damaged, will not destroy the information transmission and control of entire circuit system.
Fig. 3 is referred in one of the embodiments, and it includes voltage conversion unit 2011, electricity that power supply, which converts isolation module 201,
Press isolated location 2012 and multiple rectification filtering units 2013.Wherein, voltage conversion unit 2011 and switch power module 10
Connection, for generating the first pulsating dc voltage according to the first DC power supply；Voltage isolated location 2012 and voltage conversion unit
2011 connections, for generating the second pulsating dc voltage of multiple and different power grounds according to the first pulsating dc voltage；It is multiple whole
Stream filter unit 2013 is isolated from voltage the connection of unit 2012, is respectively used to generate the first direct current according to the second pulsating dc voltage
Voltage.First DC power supply by being carried out decompression processing and electricity by each power supply conversion isolation module 201 of the present embodiment respectively
Source it is isolated, generates multiple the first DC voltages with different electrical power ground respectively, makes to relay amplifying circuit in DC power supply
Input in there is channel isolation, solve in traditional scheme using overall volume caused by power frequency isolation greatly and at high cost ask
Topic.
Fig. 4 is referred in one of the embodiments, and voltage conversion unit 2011 includes: voltage transformation chip U1, the one or two
Pole pipe D1, first capacitor C1, the second capacitor C2, third capacitor C3, first resistor R1, second resistance R2,3rd resistor R3 and
4th resistance R4；The power end VCC of the first end of first resistor R1, the first end of first capacitor C1 and voltage transformation chip U1
Connect and constitute the input terminal of voltage conversion unit 2011 altogether, the driving tube of the second end of first resistor R1, voltage transformation chip U1
The switching tube of collector terminal DRV-C, the peak point current sampling end IPK of voltage transformation chip U1 and voltage transformation chip U1
Collector terminal SW-C connects altogether, the first end of the output voltage sampling end COPM-2 of voltage transformation chip U1, second resistance R2
And the first end of 3rd resistor R3 connects altogether, the of the timing capacitor terminals T-CAP of voltage transformation chip U1, the 4th resistance R4
The first end of one end and the second capacitor C2 connect altogether, the switching tube emitter exit SW-E and the one or two of voltage transformation chip U1
The cathode of pole pipe D1 connects altogether and constitutes the output end of voltage conversion unit 2011, ground terminal GND, the third electricity of voltage transformation chip U1
Hinder second end, the second end of the 4th resistance R4, the second end of the second capacitor C2, the second end and first of third capacitor C3 of R3
The anode of diode D1 connects altogether, and the second of the second end of first capacitor C1, the second end of second resistance R2 and third capacitor C3
End is connected to ground altogether.
Fig. 4 is referred in one of the embodiments, and voltage isolated location 2012 includes: including primary side winding, the first secondary side
First transformer TR1 of winding, the second vice-side winding and third vice-side winding；The first end of primary side winding is that voltage isolation is single
The input terminal of member 2012, the second end of primary side winding are connected to ground, and the first end of the first vice-side winding is voltage isolated location
2012 the first output end, the second end of the first vice-side winding are connected to the first power ground, and the first end of the second vice-side winding is
The second output terminal of voltage isolated location 2012, the second end of the second vice-side winding with being connected to second source, third pair side around
The first end of group is the third output end of voltage isolated location 2012, and the second end of third vice-side winding is connected to third power supply
Ground.In the particular embodiment, the first transformer TR1 can also include two vice-side windings, four vice-side windings or quantity
More vice-side windings.The present embodiment passes through the second end of the first vice-side winding of the first transformer TR1, the second vice-side winding
Second end and the second end of third vice-side winding are connected to different power grounds, realize to pulsating direct current signal carry out every
From.
In one of the embodiments, refer to Fig. 4, signal isolation unit 301 include: photo-coupler U2, the 5th resistance R5,
6th resistance R6 and the 7th resistance R7；The first end of 5th resistance R5 be signal isolation unit 301 signal input part, the 5th
The second end of resistance R5 is connect with the cathode terminal VF1 of photo-coupler U2, and the anode tap VF of photo-coupler U2 is signal isolation unit
The first end of 301 the first power input, the output end VO and the 6th resistance R6 of photo-coupler U2 connects composition signal isolation altogether
The enable end VE of the signal output end of unit 301, photo-coupler U2 is connect with the first end of the 7th resistance R7, photo-coupler U2's
The second end of power end VCC, the second end of the 6th resistance R6 and the 7th resistance R7 connect altogether constitutes the of signal isolation unit 301
The ground terminal GND of two power inputs, photo-coupler U2 is connected to the first power ground.
Fig. 4 is referred in one of the embodiments, and signal conversion unit 302 includes: the one 485 protocol chip U3, the 4th
Capacitor C4, the 8th resistance R8 and the 9th resistance R9；The low level of one 485 protocol chip U3 effectively receives output enable endThe high level of one 485 protocol chip U3 effectively drives output enable endThe power supply of one 485 protocol chip U3
End VCC, the first end of the 8th resistance R8 and the first end of the 4th capacitor C4 connect altogether and constitute the power supply of signal conversion unit 302
Input terminal, the driving input terminal DI of the one 485 protocol chip U3 are the signal input part of signal conversion unit 302, the 4th capacitor
The ground terminal GND of the second end of C4, the first end of the 9th resistance R9 and the one 485 protocol chip U3 is connected to the first power ground altogether,
The second end of the first drive output A and the 8th resistance R8 of one 485 protocol chip U3 connect altogether and constitute signal conversion unit
The second end of 302 the first signal output end, the second drive output B and the 9th resistance R9 of the one 485 protocol chip U3 is total
Connect and constitute the second signal output end of signal conversion unit 302.
Fig. 4 is referred in one of the embodiments, and Voltage stabilizing module 202 includes: the first voltage stabilizing chip U4 and the 5th capacitor
C5；The power input of first voltage stabilizing chip U4 is the input terminal Vs, the ground terminal GND of the first voltage stabilizing chip U4 of Voltage stabilizing module 202
It is connected to the first power ground, the power output end Vo and the 5th capacitor C5 of the first voltage stabilizing chip U4 altogether with the first end of the 5th capacitor C5
Second end connect altogether and constitute the output end of Voltage stabilizing module 202.The present embodiment may be implemented straight to first by Voltage stabilizing module 202
It flows voltage signal and carries out pressure stabilizing the second d. c. voltage signal of generation.
Fig. 4 is referred in one of the embodiments, and signal conversion module 40 can be real by the 2nd 485 protocol chip U21
It is existing.
Fig. 4 is referred in one of the embodiments, and relay amplification device further includes multiple failure indication modules 50, this is more
A failure indication module 50 with the first signal output end of corresponding signal isolation unit 301 and signal isolation unit 301
The connection of second signal output end, is used to indicate the failure of respective channels.When certain road is broken down, the instruction of failure indication module
Lamp goes out.
In addition, a kind of power supply is also provided, including above-mentioned relay amplification device.
The working principle of the relay amplification device of the utility model is illustrated by taking Fig. 4 as an example below, since relaying is put
Big device includes multiple identical modules or unit, and each module or the working principle of unit are identical, below only to wherein one
A module or the working principle of unit are illustrated, and details are as follows:
Switch power module 10 generates the first DC power supply according to the electric main of access, and to voltage transformation chip U1's
Power pins export first DC power supply, with to voltage transformation chip U1 provide power supply, while voltage transformation chip U1 according to
First DC power supply generates the first pulsating dc voltage, and exports first Rectified alternating current to the primary side winding of transformer TR1
Pressure, since each vice-side winding of transformer TR1 is all connected with different power grounds, so that transformer TR1 is straight according to the first pulsation
Galvanic electricity pressure generates the second pulsating dc voltage of multiple and different power supplys, to carry out voltage isolation to the second pulsating dc voltage；
Second pulsating dc voltage generates the first DC voltage after the second diode D2 rectification, and to the input terminal of voltage stabilizing chip U4
Vs exports first DC voltage, and voltage stabilizing chip U4 is made to carry out pressure stabilizing to the first DC voltage, to generate the second DC voltage, and
By power end VCC from the output end vo of voltage stabilizing chip U4 to photo-coupler U2 and the one 485 protocol chip U3 power end VCC
Second DC voltage is exported, to provide power supply to photo-coupler U2 and the one 485 protocol chip U3, meanwhile, the 2nd 485 agreement
Chip U21 passes through the 7th of the 6th data input/output terminal A and the 2nd 485 protocol chip U21 of the 2nd 485 protocol chip U21
Data input/output terminal B receives the data multiplex conversion signal of DMX controller output, and generates multiple first data multiplex conversions
Signal, and first data are exported to the 5th resistance R5 by the first data input/output terminal RO of the 2nd 485 protocol chip U21
Multipath conversion signal, it is emphasized that, when the number of vias of load is extended to ten tunnels or more, need additional conversion circuit (
2 485 protocol chip U21), as shown in figure 4, it is more to export the first data from the 5th resistance R5 to the cathode terminal of photo-coupler U2 again
Road conversion signal, is the second d. c. voltage signal by isolation since the power end VCC of photo-coupler U2 is received, and optocoupler
The ground terminal GND of clutch U2 is connected to different power grounds, so that photo-coupler U2 is according to the first data multiplex conversion signal
Generate the second data multiplex conversion signal based on varying voltage signal, and by the output end VO of photo-coupler U2 to first
The driving input terminal DI of 485 protocol chip U3 exports the second data multiplex conversion signal, so that the one 485 protocol chip U3 root
Generate differential signal according to the second data multiplex conversion signal, and by the first drive output A of the one 485 protocol chip U3 and
The second drive output B of one 485 protocol chip U3 exports the differential signal to load, to control load switch state.
The utility model has the beneficial effects that
(1) isolation module is converted by the way that multiple power supplys are arranged, and each power supply conversion isolation module is all made of electricity all the way
Source input switchs to the mode of multiple power supplies isolation output, has not only widened the number of vias of relay amplification device, but also pass through power supply
Ground isolation, avoid the relay amplification device of traditional scheme using each access of single supply data multiplex conversion signal it is mutual
It influences, even if the damage of wherein one or more accesses can still transmit signal and realize control.
(2) isolation module is converted by power supply and power ground isolation is carried out to the DC voltage that electric main generates, to letter
Number isolation conversion module provide power supply, to realize that signal isolation conversion module carries out letter to received data multiplex conversion signal
Number isolation, can substitute the relay amplification device in traditional scheme when expanding number of vias using power frequency isolation or use be not isolated
Mode, do not go the same way interactional while also reducing product cost reducing overall volume solution.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of relay amplification device, which is characterized in that the relay amplification device includes:
For generating the switch power module of the first DC power supply according to electric main；
It is connect with the switch power module, for generating the power supply of multiple second DC voltages according to first DC power supply
Conversion module；
The signal conversion module of multiple first data multiplex conversion signals is generated for data multiplex conversion signal based on the received；
And
It is multiple to be connected with the power conversion module, the signal conversion module and load, it is respectively used to according to described second
DC voltage and the first data multiplex conversion signal generate differential signal, to control the signal of the switch state of the load
Conversion module is isolated.
2. relay amplification device as described in claim 1, which is characterized in that the power conversion module includes:
It is multiple to be connect with the switch power module, it is respectively used to generate multiple and different power supplys according to first DC power supply
The power supply of first DC voltage converts isolation module；With
It is multiple to be connect with power supply conversion isolation module, it is respectively used to generate described second directly according to first DC voltage
The Voltage stabilizing module of galvanic electricity pressure.
3. relay amplification device as claimed in claim 2, which is characterized in that the signal isolation conversion module includes:
It is connect with the signal conversion module and the Voltage stabilizing module, for according to second DC voltage and first number
The signal isolation unit of the second data multiplex conversion signal is generated according to multipath conversion signal；With
It is connected with the Voltage stabilizing module, the signal isolation unit and the load, for according to second DC voltage
The differential signal is generated with the second data multiplex conversion signal, to control the signal conversion of the switch state of the load
Unit.
4. relay amplification device as claimed in claim 2, which is characterized in that the power supply converts isolation module and includes:
It is connect with the switch power module, for generating the voltage of the first pulsating dc voltage according to first DC power supply
Converting unit；
It is connect with the voltage conversion unit, for generating the second of multiple and different power supplys according to first pulsating dc voltage
The voltage isolated location of pulsating dc voltage；And
It is multiple to be connect with the voltage isolated location, it is respectively used to generate described first directly according to second pulsating dc voltage
The rectification filtering unit of galvanic electricity pressure.
5. relay amplification device as claimed in claim 4, which is characterized in that the voltage conversion unit includes: voltage transformation
Chip, first diode, first capacitor, the second capacitor, third capacitor, first resistor, second resistance, 3rd resistor and the 4th
Resistance；
The power end of the first end of the first resistor, the first end of the first capacitor and the voltage transformation chip connects altogether
And the input terminal of the voltage conversion unit is constituted, the driving tube of the second end of the first resistor, the voltage transformation chip
The switching tube current collection of collector terminal, the peak point current sampling end of the voltage transformation chip and the voltage transformation chip
Pole exit connects altogether, the output voltage sampling end of the voltage transformation chip, the first end of the second resistance and described
The first end of three resistance connects altogether, the timing capacitor terminals of the voltage transformation chip, the 4th resistance first end and
The first end of second capacitor connects altogether, the switching tube emitter exit of the voltage transformation chip and the first diode
Cathode connect and constitute the output end of the voltage conversion unit, ground terminal, the 3rd resistor of the voltage transformation chip altogether
Second end, the second end of the 4th resistance, the second end of second capacitor, the second end of the third capacitor and institute
The anode for stating first diode connects altogether, the second end of the first capacitor, the second end of the second resistance and the third
The second end of capacitor is connected to ground altogether.
6. relay amplification device as claimed in claim 4, which is characterized in that the voltage isolated location includes: including primary side
Winding, the first vice-side winding, the second vice-side winding and third vice-side winding the first transformer；
The first end of the primary side winding is the input terminal of the voltage isolated location, and the second end of the primary side winding is connected to
Ground, the first end of first vice-side winding are the first output end of the voltage isolated location, first vice-side winding
Second end is connected to the first power ground, and the first end of second vice-side winding is the second output of the voltage isolated location
End, with being connected to second source, the first end of the third vice-side winding is the electricity to the second end of second vice-side winding
The third output end of isolated location is pressed, the second end of the third vice-side winding is connected to third power ground.
7. relay amplification device as claimed in claim 3, which is characterized in that the signal isolation unit include: photo-coupler,
5th resistance, the 6th resistance and the 7th resistance；
The first end of 5th resistance be the signal isolation unit signal input part, the second end of the 5th resistance with
The cathode terminal of the photo-coupler connects, and the anode tap of the photo-coupler is the first power input of the signal isolation unit
End, the first end of the output end of the photo-coupler and the 6th resistance connect altogether constitute the signal isolation unit signal it is defeated
Outlet, the enable end of the photo-coupler are connect with the first end of the 7th resistance, the power end of the photo-coupler, described
The second end of 6th resistance and the second end of the 7th resistance connect altogether constitute the signal isolation unit second source it is defeated
Enter end, the ground terminal of the photo-coupler is connected to the first power ground.
8. relay amplification device as claimed in claim 3, which is characterized in that the signal conversion unit includes: the one 485 association
Discuss chip, the 4th capacitor, the 8th resistance and the 9th resistance；
The low level of one 485 protocol chip effectively receives the height electricity of output enable end, the one 485 protocol chip
Flat effective driving output enable end, the power end of the one 485 protocol chip, the first end of the 8th resistance and institute
The first end for stating the 4th capacitor connects altogether and constitutes the power input of the signal conversion unit, the one 485 protocol chip
Driving signal input be the signal conversion unit signal input part, the second end of the 4th capacitor, the described 9th
The first end of resistance and the ground terminal of the one 485 protocol chip are connected to the first power ground, the one 485 protocol chip altogether
The first drive output and the 8th resistance second end connect altogether and constitute the signal conversion unit the first signal it is defeated
Outlet, the second drive output of the one 485 protocol chip and the second end of the 9th resistance connect altogether and constitute described
The second signal output end of signal conversion unit.
9. relay amplification device as claimed in claim 2, which is characterized in that the Voltage stabilizing module includes: the first voltage stabilizing chip
With the 5th capacitor；
The power input of first voltage stabilizing chip is the input terminal of the Voltage stabilizing module, the ground terminal of first voltage stabilizing chip
It is connected to the first power ground, the power output end of first voltage stabilizing chip and the described 5th altogether with the first end of the 5th capacitor
The second end of capacitor connects altogether and constitutes the output end of the Voltage stabilizing module.
10. a kind of relay amplifier, which is characterized in that including the described in any item relaying amplification dresses of such as the claims 1 to 9
It sets.
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| CN201920179789.XU CN209448743U (en) | 2019-01-30 | 2019-01-30 | A kind of relay amplification device and relay amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176946A (en) * | 2019-01-30 | 2019-08-27 | 深圳市晟瑞科技有限公司 | A kind of relay amplification device and relay amplifier |
| CN113110254A (en) * | 2021-05-20 | 2021-07-13 | 美钻石油钻采***(上海)有限公司 | Oil gas signal processing and control system of ocean platform and communication device thereof |
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2019
- 2019-01-30 CN CN201920179789.XU patent/CN209448743U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176946A (en) * | 2019-01-30 | 2019-08-27 | 深圳市晟瑞科技有限公司 | A kind of relay amplification device and relay amplifier |
| CN113110254A (en) * | 2021-05-20 | 2021-07-13 | 美钻石油钻采***(上海)有限公司 | Oil gas signal processing and control system of ocean platform and communication device thereof |
| CN113110254B (en) * | 2021-05-20 | 2023-03-03 | 美钻石油钻采***(上海)有限公司 | Oil gas signal processing and control system of ocean platform and communication device thereof |
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