CN208125962U - A kind of PCM synthetic multiplexing device - Google Patents
A kind of PCM synthetic multiplexing device Download PDFInfo
- Publication number
- CN208125962U CN208125962U CN201820622625.5U CN201820622625U CN208125962U CN 208125962 U CN208125962 U CN 208125962U CN 201820622625 U CN201820622625 U CN 201820622625U CN 208125962 U CN208125962 U CN 208125962U
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- foot
- chip
- voltage stabilizing
- optocoupler
- coupled
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Abstract
The utility model discloses a kind of PCM synthetic multiplexing devices.The advantages of the utility model：Whether governor circuit output signal control triode 6Q30 is connected, switching circuit controls whether optocoupler 6D31 is connected by triode 6Q30, and then controls whether transceiver works, and the stability of control is higher, and transceiver and governor circuit are isolated, the interference between two circuits is avoided.
Description
Technical field
The utility model relates to information transmission equipment field, more particularly to a kind of PCM synthetic multiplexing device.
Background technique
Optocoupler, which is arranged, in existing PCM synthetic multiplexing device in switching circuit is isolated, but the control of main control chip
Device chip is directly accessed the input terminal of optocoupler, although optocoupler is isolated, guarantees safety, the signal of chip pin output
Stability is low, limitation is big, and stability when PCM synthetic multiplexing device being made to work is low.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide stability height in a kind of course of work
PCM synthetic multiplexing device.
To achieve the above object, the utility model provides following technical solution：A kind of PCM synthetic multiplexing device, including
Have：Main control chip, power circuit, switching circuit, transceiver and SEP optical module, the power circuit respectively with main control chip, receive
Hair device is connected with SEP optical module and is powered to main control chip, transceiver and SEP optical module, and the SEP optical module and transceiver connect
It connects, the SEP optical module is output to transceiver for converting optical signals into after electric signal, the switching circuit connection power supply electricity
Road, main control chip and transceiver, the switching circuit include triode 6Q30 and optocoupler 6D31, the base of the triode 6Q30
Pole is coupled to main control chip after being coupled with resistance 6R32, and the emitter of the triode 6Q30 is grounded, the triode 6Q30's
Collector is coupled with the negative input that optocoupler 6D31 is coupled to after resistance 6R33, and the electrode input end of the optocoupler 6D31 connects electricity
The output end of source VCC5V, the optocoupler 6D31 are both coupled to transceiver.
The switching circuit further includes having second switch circuit as a further improvement of the utility model, and described second
Switching circuit includes optocoupler 6OC30, and the electrode input end and negative input of the optocoupler 6OC30 is coupled to main control chip,
Diode 6D30 is coupled between the electrode input end and negative input of institute optocoupler 6OC30, the anode of the optocoupler 6OC30 is defeated
Enter to be in series with resistance 6R30 between end and power supply, the output end of the optocoupler 6OC30 is coupled to power supply after being coupled with resistance 6R30
VCC5V, the output end of the optocoupler 6OC30 are coupled with after resistance 6R35 and are coupled to transceiver.
The power circuit includes voltage stabilizing chip 6U1 and voltage stabilizing chip as a further improvement of the utility model,
6U2, the voltage stabilizing chip 6U1 have Vin foot, Vout foot and ADJ foot, and the voltage stabilizing chip 6U2 has Vin foot, GND foot, EN
Foot, BYP foot and Vout foot, the Vin foot of the voltage stabilizing chip 6U1 are connected with capacitor 6C2 and electrolytic capacitor 6EC2 parallel with one another
After be grounded, the Vin foot of the voltage stabilizing chip 6U1 meets VCC5V, the ADJ foot ground connection of the voltage stabilizing chip 6U1, the voltage stabilizing chip
The Vout foot of 6U1 is grounded after being connected with electrolytic capacitor 6EC5 and capacitor 6C1 parallel with one another, the Vout of the voltage stabilizing chip 6U1
Foot exports VCC3.3, and the Vin foot and EN foot of the voltage stabilizing chip 6U2 connects VCC3.3, the Vin foot connection of the voltage stabilizing chip 6U2
It is grounded after having capacitor 6C9 and electrolytic capacitor 6EC3 parallel with one another, the GND foot ground connection of the voltage stabilizing chip 6U2, the pressure stabilizing core
The Vout foot of piece 6U2 is grounded after being connected with capacitor 6C11 and electrolytic capacitor 6EC4 parallel with one another, the voltage stabilizing chip 6U2's
Vout foot exports 2.5V, and the BYP foot of the voltage stabilizing chip 6U2 is grounded after being connected with capacitor 6C10.
The VCC5V is connected with electrolytic capacitor 6EC1 and two parallel with one another as a further improvement of the utility model,
It is grounded after pole pipe 6DV1.
It as a further improvement of the utility model, further include having electrostatic protection module and Ethernet switching chip 4U2, institute
Stating electrostatic protection module includes electrostatic protection chip 4U3, and the electrostatic protection chip 4U3 is connected to Ethernet switching chip
Between 4U2 and power circuit.
It as a further improvement of the utility model, further include having indicating lamp module, the indicating lamp module includes three
Group row's type light emitting diode, short circuit is followed by VCC3.3 after row's type light emitting diode anode is separately connected divider resistance, described
Main control chip is connected after row's type light emitting diode cathode connection driving chip 3U4 and driving chip 3U5.
The main control chip is connected with dial-up after being connected with driving chip 9U1 as a further improvement of the utility model,
Switch.
The beneficial effects of the utility model, switching circuit control whether optocoupler 6D31 is connected by triode 6Q30, in turn
Whether control transceiver works, and the stability of control is higher, and transceiver and governor circuit are isolated, avoid two circuits it
Between interference.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
Fig. 2 is the circuit diagram of switching circuit and second switch circuit in Fig. 1；
Fig. 3 is the circuit diagram of voltage regulator circuit in Fig. 1；
Fig. 4 is the circuit diagram of electrostatic discharge protective circuit；
Fig. 5 is the circuit diagram of Ethernet switching chip 4U2；
Fig. 6 is the circuit diagram of three groups of row's type light emitting diodes；
Fig. 7 is the circuit diagram of driving chip 3U4 and driving chip 3U5；
Fig. 8 is the circuit diagram of driving chip 9U1 and toggle switch.
Specific embodiment
The present invention is described in further detail below in conjunction with embodiment given by attached drawing.
Referring to Fig.1, shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of PCM comprehensive multiplexing of the present embodiment is set
It is standby, include：Main control chip 1, power circuit 2, switching circuit 3, transceiver 4 and SEP optical module 5, the power circuit 2 are distinguished
It connect with main control chip 1, transceiver 4 and SEP optical module 5 and powers to main control chip 1, transceiver 4 and SEP optical module 5, it is described
SEP optical module 5 is connect with transceiver 4, and the SEP optical module 5 is for being output to transceiver after converting optical signals into electric signal
4, it includes triode 6Q30 that the switching circuit 3, which connects power circuit 2, main control chip 1 and transceiver 4, the switching circuit 3,
With optocoupler 6D31, the base stage of the triode 6Q30 is coupled to main control chip 1, the triode 6Q30 after being coupled with resistance 6R32
Emitter ground connection, the collector of the triode 6Q30 is coupled with the cathode input that optocoupler 6D31 is coupled to after resistance 6R33
End, the electrode input end of the optocoupler 6D31 meet power supply VCC5V, and the output end of the optocoupler 6D31 is both coupled to transceiver 4.
Through the above technical solutions, power module 1 is powered to transceiver 2 and SEP optical module 4, SEP optical module 4 receives light
Signal is simultaneously converted into electric signal and is output to transceiver 2, and switching circuit 3 is output to transceiver 2 after receiving the signal of governor circuit 1,
With switching circuit 2 control transceiver 2 work, improve transceiver 2 work stability, signal from governor circuit 1 output after by
Triode 6Q30 is output to after current-limiting resistance 6R32, whether control triode 6Q30 is connected, when triode 6Q30 is connected, optocoupler
6D31 is opened, and outputs signals to transceiver 2, and signal isolation is avoided the interference between governor circuit and transceiver by optocoupler 6D31,
It is safer, and whether opened using triode 6Q30 control optocoupler 6D31, than being drawn using the main control chip in governor circuit 1
The stability whether foot control optocoupler 6D31 opens is higher.
As a kind of improved specific embodiment, the switching circuit 3 further includes having second switch circuit 31, and described
Two switching circuits 31 include optocoupler 6OC30, and the electrode input end and negative input of the optocoupler 6OC30 is coupled to master control core
Piece 1 is coupled with diode 6D30 between the electrode input end and negative input of institute optocoupler 6OC30, the optocoupler 6OC30 is just
Resistance 6R30 is in series between pole input terminal and power supply, the output end of the optocoupler 6OC30 is coupled to after being coupled with resistance 6R30
Power supply VCC5V, the output end of the optocoupler 6OC30 are coupled with after resistance 6R35 and are coupled to transceiver 4.
Through the above technical solutions, the signal of governor circuit 1 is output to the input terminal of optocoupler 6OC30, resistance 6R30 is to letter
Number current limliting is carried out, improves the stability of signal, diode 6D30 is used as freewheeling diode, when governor circuit 1 output signal shakiness
When, output signal is connected in diode 6D30, and optocoupler 6OC30 work is more stable, later the resistance 6R31 and resistance of output end
6R35 is used as current-limiting resistance, and when optocoupler 6OC30 is not turned on, power supply VCC5V output signal passes through resistance 6R31 and resistance
Transceiver 2 is output to after 6R35；When optocoupler 6OC30 conducting, power supply VCC5V output signal is after resistance 6R31 by optocoupler
It is grounded after 6OC30.Transceiver 2 is directly arrived by power supply VCC5V output signal, is powered more stable, optocoupler 6OC30 is controlled
System, while transceiver 2 and governor circuit 1 can be isolated, and when work is more safe and reliable.
As a kind of improved specific embodiment, the power module 4 includes voltage stabilizing chip 6U1 and voltage stabilizing chip
6U2, the voltage stabilizing chip 6U1 have Vin foot, Vout foot and ADJ foot, and the voltage stabilizing chip 6U2 has Vin foot, GND foot, EN
Foot, BYP foot and Vout foot, the Vin foot of the voltage stabilizing chip 6U1 are connected with capacitor 6C2 and electrolytic capacitor 6EC2 parallel with one another
After be grounded, the Vin foot of the voltage stabilizing chip 6U1 meets VCC5V, the ADJ foot ground connection of the voltage stabilizing chip 6U1, the voltage stabilizing chip
The Vout foot of 6U1 is grounded after being connected with electrolytic capacitor 6EC5 and capacitor 6C1 parallel with one another, the Vout of the voltage stabilizing chip 6U1
Foot exports VCC3.3, and the Vin foot and EN foot of the voltage stabilizing chip 6U2 connects VCC3.3, the Vin foot connection of the voltage stabilizing chip 6U2
It is grounded after having capacitor 6C9 and electrolytic capacitor 6EC3 parallel with one another, the GND foot ground connection of the voltage stabilizing chip 6U2, the pressure stabilizing core
The Vout foot of piece 6U2 is grounded after being connected with capacitor 6C11 and electrolytic capacitor 6EC4 parallel with one another, the voltage stabilizing chip 6U2's
Vout foot exports 2.5V, and the BYP foot of the voltage stabilizing chip 6U2 is grounded after being connected with capacitor 6C10.
Through the above technical solutions, exporting 3.3V, the voltage input 6U2 of 3.3V after the voltage input voltage stabilizing chip 6U1 of 5V
After export 2.5V, electrolytic capacitor 6EC2 and capacitor 6C2 parallel with one another are set between VCC5V and the Vin foot of voltage stabilizing chip 6U1
Ground connection improves the stability of input voltage afterwards, extends the service life of voltage stabilizing chip 6U1, connects in the Vout foot of voltage stabilizing chip 6U1
It is grounded after being connected to electrolytic capacitor 6EC5 and capacitor 6C1 parallel with one another, the voltage of output is filtered, output voltage is improved
Stability protects late-class circuit, after the Vin foot of voltage stabilizing chip 6U2 connects electrolytic capacitor 6EC3 and capacitor 6C9 parallel with one another
Ground connection is filtered the voltage of input voltage stabilizing chip 6U2, improves the stability of input, and extend voltage stabilizing chip 6U2 uses the longevity
Life, is grounded after the Vout foot of voltage stabilizing chip 6U2 connects capacitor 6C11 and electrolytic capacitor 6EC4 parallel with one another, filters out output electricity
Burr in pressure further increases the stability of output, protects late-class circuit.
As a kind of improved specific embodiment, the VCC5V is connected with electrolytic capacitor 6EC1 and two parallel with one another
It is grounded after pole pipe 6DV1.
Through the above technical solutions, electrolytic capacitor 6EC1 is as storage capacitor, the power consumption of circuit is sometimes big, sometimes
Small, if not having electrolytic capacitor 6EC1 when power consumption increases suddenly, supply voltage can be pulled low, generation noise, ring, sternly
It will lead to CPU again to restart, setting electrolytic capacitor 6EC1 can temporarily release the electric energy of storage, stabilized supply voltage, institute
Stating diode 6DV1 is Transient Suppression Diode, can be SMBJ6.5A, when the two poles of the earth of diode 6DV1 receive reversed transient state height
When energy impact, the high impedance of two interpolars is become Low ESR with the speed of 10 minus 12 power second-time by it, is absorbed and is up to counted
Ten million surge power makes the voltage clamping of two interpolars in a predetermined value, protects the precision components in Subsequent electronic route,
From the damage of various surge pulses.
It further include having electrostatic protection module 5 and Ethernet switching chip 4U2 as a kind of improved specific embodiment,
The electrostatic protection module 5 includes electrostatic protection chip 4U3, and the electrostatic protection chip 4U3 is connected to Ethernet exchanging core
Between piece 4U2 and power module 1.
Through the above technical solutions, first passing through electrostatic protection chip when the momentary voltage pulse that power module 1 occurs
Ethernet switching chip 4U2 is arrived after 4U3 again, avoid momentary voltage pulse damage Ethernet switching chip 4U2, further increase with
The too stability of net exchange chip 4U2 extends the service life of Ethernet switching chip 4U2, improves user experience.
It further include having indicating lamp module 8 as a kind of improved specific embodiment, the indicating lamp module 8 includes
Three groups of row's type light emitting diodes, short circuit is followed by VCC3.3 after row's type light emitting diode anode is separately connected divider resistance, institute
The row's of stating type light emitting diode cathode connects main control chip 1 after connecting driving chip 3U4 and driving chip 3U5.
Through the above technical solutions, three groups of row's type light emitting diodes of setting, and three groups of row's type light emitting diodes have red
And green, it indicates the working condition of entire circuit, observes and overhaul convenient for user, row's type light emitting diode is multiple compared to installing
Diode is more convenient, and more succinct, more easy to install shell higher with shell matching degree.By add driving chip 3U4 and
As the connection between three groups of row's type light emitting diodes and main control chip 1, the pin for reducing main control chip 1 makes driving chip 3U5
With quantity, it is easier to extend new function.
As a kind of improved specific embodiment, the main control chip 1 is connected with dial-up after being connected with driving chip 9U1
Switch 9.
Through the above technical solutions, setting toggle switch 9, input signal is to main control chip 1, toggle switch 8 when stirring
Position, can input 256 kinds of different instructions and be controlled and adjusted to main control chip 1, meet the need of most instruction numbers
It asks, toggle switch 9 is small in size, and stability is strong, long service life.And toggle switch 9 is easy for installation, and installation effectiveness is high.Pass through
Driving chip 9U1 is added as the connection between toggle switch 9 and main control chip 1, the pin for reducing main control chip 1 uses number
Amount, is easier to extend new function.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of PCM synthetic multiplexing device, which is characterized in that include：Main control chip (1), power circuit (2), switching circuit
(3), transceiver (4) and SEP optical module (5), the power circuit (2) respectively with main control chip (1), transceiver (4) and SEP light
Module (5) connects and to main control chip (1), transceiver (4) and SEP optical module (5) power supply, the SEP optical module (5) and transmitting-receiving
Device (4) connection, the SEP optical module (5) is for being output to transceiver (4), the switch after converting optical signals into electric signal
Circuit (3) connects power circuit (2), main control chip (1) and transceiver (4), and the switching circuit (3) includes triode 6Q30
With optocoupler 6D31, the base stage of the triode 6Q30 is coupled to main control chip (1), the triode after being coupled with resistance 6R32
The emitter of 6Q30 is grounded, the collector of the triode 6Q30 be coupled be coupled to after resistance 6R33 optocoupler 6D31 cathode it is defeated
Enter end, the electrode input end of the optocoupler 6D31 meets power supply VCC5V, and the output end of the optocoupler 6D31 is both coupled to transceiver
(4)。
2. PCM synthetic multiplexing device according to claim 1, it is characterised in that：The switching circuit (3) further includes having
Two switching circuits (31), the second switch circuit (31) includes optocoupler 6OC30, the electrode input end of the optocoupler 6OC30
It is coupled to main control chip (1) with negative input, is coupled with two between the electrode input end and negative input of institute optocoupler 6OC30
Pole pipe 6D30, is in series with resistance 6R30 between the electrode input end and power supply of the optocoupler 6OC30, the optocoupler 6OC30's is defeated
Outlet, which is coupled with after resistance 6R30, is coupled to power supply VCC5V, and the output end of the optocoupler 6OC30 is coupled with after resistance 6R35 and coupling
It is connected to transceiver (4).
3. PCM synthetic multiplexing device according to claim 2, it is characterised in that：The power circuit (2) includes pressure stabilizing
Chip 6U1 and voltage stabilizing chip 6U2, the voltage stabilizing chip 6U1 have Vin foot, Vout foot and ADJ foot, the voltage stabilizing chip 6U2 tool
There are Vin foot, GND foot, EN foot, BYP foot and Vout foot, the Vin foot of the voltage stabilizing chip 6U1 is connected with capacitor parallel with one another
It is grounded after 6C2 and electrolytic capacitor 6EC2, the Vin foot of the voltage stabilizing chip 6U1 connects VCC5V, the ADJ foot of the voltage stabilizing chip 6U1
Ground connection, the Vout foot of the voltage stabilizing chip 6U1 is grounded after being connected with electrolytic capacitor 6EC5 and capacitor 6C1 parallel with one another, described
The Vout foot of voltage stabilizing chip 6U1 exports VCC3.3, and the Vin foot and EN foot of the voltage stabilizing chip 6U2 connects VCC3.3, the pressure stabilizing core
The Vin foot of piece 6U2 is grounded after being connected with capacitor 6C9 and electrolytic capacitor 6EC3 parallel with one another, the GND of the voltage stabilizing chip 6U2
Foot ground connection, the Vout foot of the voltage stabilizing chip 6U2 are grounded after being connected with capacitor 6C11 and electrolytic capacitor 6EC4 parallel with one another, institute
The Vout foot output 2.5V of voltage stabilizing chip 6U2 is stated, the BYP foot of the voltage stabilizing chip 6U2 is grounded after being connected with capacitor 6C10.
4. PCM synthetic multiplexing device according to claim 3, it is characterised in that：The VCC5V is connected with parallel with one another
It is grounded after electrolytic capacitor 6EC1 and diode 6DV1.
5. PCM synthetic multiplexing device according to claim 4, it is characterised in that：Further include have electrostatic protection module (6) and
Ethernet switching chip 4U2, the electrostatic protection module (6) include electrostatic protection chip 4U3, the electrostatic protection chip
4U3 is connected between Ethernet switching chip 4U2 and power circuit (2).
6. PCM synthetic multiplexing device according to claim 5, it is characterised in that：It further include having indicating lamp module (8), institute
Stating indicating lamp module (8) includes three groups of row's type light emitting diodes, and row's type light emitting diode anode is separately connected partial pressure electricity
It is shorted after resistance and is followed by VCC3.3, connect master after row's type light emitting diode cathode connection driving chip 3U4 and driving chip 3U5
It controls chip (1).
7. PCM synthetic multiplexing device according to claim 6, it is characterised in that：The main control chip (1) is connected with driving
Toggle switch (9) are connected with after chip 9U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622625.5U CN208125962U (en) | 2018-04-27 | 2018-04-27 | A kind of PCM synthetic multiplexing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622625.5U CN208125962U (en) | 2018-04-27 | 2018-04-27 | A kind of PCM synthetic multiplexing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125962U true CN208125962U (en) | 2018-11-20 |
Family
ID=64187626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820622625.5U Expired - Fee Related CN208125962U (en) | 2018-04-27 | 2018-04-27 | A kind of PCM synthetic multiplexing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208125962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677545A (en) * | 2019-09-29 | 2020-01-10 | 浙江恒捷通信科技有限公司 | PCM comprehensive multiplexing equipment with stable conversation |
| CN114754638A (en) * | 2022-04-19 | 2022-07-15 | 华东光电集成器件研究所 | Digital detonator sensitivity test device and method |
-
2018
- 2018-04-27 CN CN201820622625.5U patent/CN208125962U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677545A (en) * | 2019-09-29 | 2020-01-10 | 浙江恒捷通信科技有限公司 | PCM comprehensive multiplexing equipment with stable conversation |
| CN110677545B (en) * | 2019-09-29 | 2020-12-08 | 浙江恒捷通信科技有限公司 | PCM comprehensive multiplexing equipment with stable conversation |
| CN114754638A (en) * | 2022-04-19 | 2022-07-15 | 华东光电集成器件研究所 | Digital detonator sensitivity test device and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20200427 |