CN107196505A - Optical module booster circuit and optical module - Google Patents
Optical module booster circuit and optical module Download PDFInfo
- Publication number
- CN107196505A CN107196505A CN201710374927.5A CN201710374927A CN107196505A CN 107196505 A CN107196505 A CN 107196505A CN 201710374927 A CN201710374927 A CN 201710374927A CN 107196505 A CN107196505 A CN 107196505A
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- electric capacity
- optical module
- resistor
- booster circuit
- inductance
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The embodiment of the present invention provides a kind of optical module booster circuit and optical module, including micro-control unit MCU, electric capacity, metal-oxide-semiconductor, inductance, diode, avalanche photodide, wherein, the first end of the inductance is connected with the first end of the metal-oxide-semiconductor and the first end of the diode respectively, and the second end of the inductance is used to be connected with the power supply of optical fiber communication equipment；The first end of the electric capacity is connected with the second end of the diode and the input of the avalanche diode respectively, and the second end of the electric capacity is grounded with the second end of the metal-oxide-semiconductor；Wherein, the MCU is used to charge to the electric capacity, and after being charged to the electric capacity, controls the optical fiber communication equipment to be charged by the inductance to the electric capacity.Stability for improving optical module.
Description
Technical field
The present embodiments relate to field of photoelectric technology, more particularly to a kind of optical module booster circuit and optical module.
Background technology
Optical module is the optical signal interface device of optical fiber communication equipment, and optical module is generally plugged in optical fiber communication equipment,
To be changed to the photosignal that optical fiber communication equipment is received and dispatched.
At present, most optical modules are supported hot-swappable, i.e., can be in optical fiber in the case where optical fiber communication equipment is not powered off
Optical module is inserted or transferred in communication equipment.After optical module insertion optical fiber communication equipment, from optical fiber communication equipment to optical mode
The booster circuit of block power (supply voltage from optical fiber communication equipment to booster circuit generally in 3.3V or so), the boosting of optical module
Circuit boosts to supply voltage, so that the voltage at the electric capacity two ends in booster circuit reaches predeterminated voltage (such as 40V), and
Powered from the electric capacity in booster circuit to other parts of optical module.
In actual application, before optical module insertion optical fiber communication equipment, the electricity at electric capacity two ends in booster circuit
Pressure is zero, and the moment of optical fiber communication equipment is inserted in optical module, and optical fiber communication equipment is charged by inductance and diode to electric capacity,
Due to the impedance very little of inductance and diode so that produce larger current in circuit, the larger electric current may be to optical module
In part cause damage, cause the less stable of optical module.
The content of the invention
The embodiment of the present invention provides a kind of optical module booster circuit and optical module, improves the stability of optical module.
In a first aspect, the embodiment of the present invention provides a kind of optical module booster circuit, including micro-control unit MCU, electric capacity,
Metal-oxide-semiconductor, inductance, diode, avalanche photodide, wherein,
The first end of the inductance is connected with the first end of the metal-oxide-semiconductor and the first end of the diode respectively, described
Second end of inductance is used to be connected with the power supply of optical fiber communication equipment；
The first end of the electric capacity is connected with the second end of the diode and the input of the avalanche diode respectively,
Second end of the electric capacity is grounded with the second end of the metal-oxide-semiconductor；
Wherein, the MCU is used to charge to the electric capacity, and after being charged to the electric capacity, controls the optical fiber to lead to
Letter equipment is charged by the inductance to the electric capacity.
In a kind of possible embodiment, the optical module booster circuit also includes dc-dc, the metal-oxide-semiconductor
It is integrated in the dc-dc, the power supply of the dc-dc respectively with the MCU and the optical fiber communication equipment
Power supply is connected,
Accordingly, the MCU to the electric capacity specifically for charging, and after being charged to the electric capacity, to described
Dc-dc, which is sent, enables signal, to start the dc-dc；Wherein, after dc-dc startup,
The optical fiber communication equipment is charged by the inductance to the electric capacity.
In alternatively possible embodiment, the MCU is by DAC and the capacitance connection, accordingly,
The MCU by the DAC to the electric capacity specifically for being charged, and it is determined that the output voltage of the DAC is big
When predeterminated voltage, the enable signal is sent to the dc-dc.
In alternatively possible embodiment, control of the dc-dc by EN pins respectively with the MCU
End and one end of pull down resistor are connected, the other end ground connection of the pull down resistor.
In alternatively possible embodiment, the optical module booster circuit also includes wave filter, and the wave filter is set
Put between the VIN pins of the dc-dc and the power supply of the optical fiber communication equipment.
In alternatively possible embodiment, optical module booster circuit also includes first resistor, second resistance and the 3rd
Resistance, wherein,
The MCU is connected by DAC output end with the first end of the first resistor；
The first end and the first end of the 3rd resistor of second end of the first resistor respectively with the second resistance
Connection；
Second end of the second resistance is connected with the first end of the electric capacity, the second end ground connection of the 3rd resistor.
In alternatively possible embodiment, the 3rd resistor is more than the first resistor, and the second resistance is big
In the 3rd resistor.
In alternatively possible embodiment, the dc-dc is also connected with the second end of the first resistor,
Wherein,
The dc-dc is additionally operable to obtain the voltage at the second end of the first resistor, and in the first resistor
The voltage at the second end when being not equal to predeterminated voltage, Regulate signal is sent to the metal-oxide-semiconductor, to adjust the duty of the metal-oxide-semiconductor
Than.
In alternatively possible embodiment, the output voltage of the DAC is more than 1 volt and less than 5 volts；
The first resistor and the 3rd resistor are less than 10 kilohms, and the second resistance is more than 100 kilohms and small
In 500 kilohms.
Second aspect, the embodiment of the present invention provides a kind of optical module, including the optical module liter described in first aspect Arbitrary Term
Volt circuit.
Optical module booster circuit provided in an embodiment of the present invention, optical module heat insertion optical fiber communication equipment after, first by
MCU charges to electric capacity, after MCU charges a period of time to electric capacity, and the two ends of electric capacity have certain voltage, reduce optical fiber
Voltage difference between the power supply and electric capacity of communication equipment, so, in the power supply by optical fiber communication equipment to electric capacity
During charging, it is possible to reduce the electric current produced in circuit, it is to avoid infringement of the larger electric current to the part in optical module, Jin Erti
The stability of high optical module.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the application scenarios schematic diagram of optical module boost chopper provided in an embodiment of the present invention；
Fig. 2 is the structural representation one of optical module booster circuit provided in an embodiment of the present invention；
Fig. 3 is the structural representation two of optical module booster circuit provided in an embodiment of the present invention；
Fig. 4 is the structural representation three of optical module booster circuit provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the application scenarios schematic diagram of optical module boost chopper provided in an embodiment of the present invention.Refer to Fig. 1,
Including optical fiber communication equipment 101 and optical module 102, optical fiber communication equipment 101 includes power supply 101-1.In optical module 102
Including optical module booster circuit 102-1 and other part 102-2.Wherein, include being used to store up in optical module booster circuit 102-1
The electric capacity (not shown) of energy, when optical module booster circuit 102-1 is boosted, charges, to improve electric capacity two to electric capacity
The voltage at end.
, can be by optical module when needing optical module 102 inserting optical fiber communication equipment 101 in actual application
Preset interface (not shown) in 102 inserts the preset interface (not shown) of optical fiber communication equipment 101.By optical mode
After the heat insertion optical fiber communication equipment 101 of block 102, optical module booster circuit first can slowly charge to electric capacity, be filled to electric capacity
After electric a period of time, then charged to electric capacity from the power supply of optical fiber communication equipment, it is to avoid to optical module booster circuit
Super-high-current is produced during electric capacity charging in 102-2, and then the stability of each part in optical module can be ensured.
Below, by specific embodiment, the technical scheme shown in the application is described in detail.It should be noted that
Several specific embodiments can be combined with each other below, for same or analogous content, no longer carry out in various embodiments
Repeat.
Fig. 2 is the structural representation one of optical module booster circuit provided in an embodiment of the present invention.Fig. 2 is referred to, including it is micro-
Control unit (Microcontroller Unit, abbreviation MCU) 21, electric capacity 22, metal-oxide-semiconductor 23, inductance 24, diode 25, snowslide
Photodiode 26.Wherein,
The first end of inductance 24 is connected with the first end of metal-oxide-semiconductor 23 and the first end of diode 25 respectively, and the of inductance 24
Two ends are used to be connected with the power supply VCC of optical fiber communication equipment.The second end of the first end of electric capacity 22 respectively with diode 25
Connected with the input of avalanche diode 25, the second end of electric capacity 22 is grounded with the second end of metal-oxide-semiconductor 23.MCU21 is used for electricity
Hold 22 to charge, and after being charged to electric capacity 22, control optical fiber communication equipment is charged by inductance 24 to electric capacity 22.
Optionally, MCU21 can be to carry in optical module, or increase newly in the optical module.
Optionally, MCU21 can pass through digital analog converter (Digital to Analog Converter, abbreviation
DAC) charged to electric capacity 22.Optionally, MCU21 is direct current by the DAC electric currents exported, and MCU21 can by the DAC voltages exported
With in 1V between 5V.
Optionally, other parts can also be set between MCU21 and inductance 24, for example switch, dc-dc 27
Deng so that MCU21 can be charged by other component controls optical fiber communication equipments by inductance 24 to electric capacity 22.
Below, the operation principle and the course of work to the optical module booster circuit shown in Fig. 2 embodiments are described in detail.
In actual application, after optical module heat insertion optical fiber communication equipment, the power supply electricity of light communication equipment
Source VCC powers to MCU21, so that MCU21 can charge to electric capacity 22.Meanwhile, after optical module insertion optical fiber communication equipment
Within a period of time, the power supply VCC of MCU21 control optical fiber communication equipments can not be charged by inductance 24 to electric capacity 22.
MCU21 to electric capacity 22 power a period of time after, or, the MCU21 voltages for detecting the two ends of electric capacity 22 reach preset value it
Afterwards, MCU21 controls the power supply VCC of optical fiber communication equipment to be charged by inductance 24 to electric capacity 22.
Optionally, the process that the power supply VCC of optical fiber communication equipment is charged by inductance 24 to electric capacity 22 is as follows：MOS
Pipe 23 periodically disconnects and closed, when metal-oxide-semiconductor 23 is closed, and metal-oxide-semiconductor 23 is by diode 25 and the short circuit of inductance 24, so that power supply
Power supply in the loop of inductance 24 and metal-oxide-semiconductor 23 to inductance 24L charge, when metal-oxide-semiconductor 23 disconnects, inductance 24, diode 25,
On the loop of electric capacity 22, inductance 24 charges to electric capacity 22, wherein, on inductance 24, diode 25, the loop of electric capacity 22, due to
It is provided with diode 25, it is ensured that electric capacity 22 does not discharge to the direction of inductance 24.
Optical module booster circuit provided in an embodiment of the present invention, optical module heat insertion optical fiber communication equipment after, first by
MCU charges to electric capacity, after MCU charges a period of time to electric capacity, and the two ends of electric capacity have certain voltage, reduce optical fiber
Voltage difference between the power supply and electric capacity of communication equipment, so, in the power supply by optical fiber communication equipment to electric capacity
During charging, it is possible to reduce the electric current produced in circuit, it is to avoid infringement of the larger electric current to the part in optical module, Jin Erti
The stability of high optical module.
On the basis of embodiment illustrated in fig. 2, optionally, optical module booster circuit also includes dc-dc, metal-oxide-semiconductor
It is integrated in dc-dc.Accordingly, MCU can by dc-dc control optical fiber communication equipment power supply to
Electric capacity charges.Specifically, embodiment shown in Figure 3.
Fig. 3 is the structural representation two of optical module booster circuit provided in an embodiment of the present invention.In embodiment illustrated in fig. 2
On the basis of, refer to Fig. 3, optical module booster circuit also includes dc-dc 27, first resistor 28, second resistance 29 and the
Three resistance 210.Wherein,
Dc-dc 27 includes EN pins, VIN pins, FB pins, GND pin and SW pins.Dc-dc
Metal-oxide-semiconductor 23 is integrated with 27, SW pins are internally connected with the metal-oxide-semiconductor 23 being integrated in dc-dc 27, SW pins externally with
Second pipe of inductance 24 and the first end of diode 25 are connected.EN pins and MCU21 I/O ends connection, EN pins are also under
Pull-up resistor is grounded.VIN pins are used to be connected with the power supply POWER of optical fiber communication equipment.FB pins and first resistor 28
Second end, the first end of second resistance 29, the connection of the first end of 3rd resistor 210.GND pin is grounded.
MCU21 includes DAC pins, I/O pins and VIN pins.DAC pins (DAC output end) and first resistor 28
First end connection, the first end and the first end of 3rd resistor 210 of the second end of first resistor 28 respectively with second resistance 29
Connection, the second end of second resistance 29 is connected with the first end of electric capacity 22, the second end ground connection of 3rd resistor 210.I/O pins with
The EN pins connection of dc-dc 27.VIN pins are used to be connected with the power supply POWER of optical fiber communication equipment.
Optionally, second resistance 29 is more than 3rd resistor 210, and 3rd resistor 210 is more than first resistor 28.First resistor 28
It is less than 10 kilohms with 3rd resistor 210, second resistance 29 is more than 100 kilohms and less than 500 kilohms.For example, the first electricity
Resistance 28 can be 8K ohm, second resistance 29 can be 200K ohm, 3rd resistor 210 can be 10K ohm.Certainly, in reality
In the application process of border, the resistance of first resistor 28, second resistance 29 and 3rd resistor 210 can be set according to actual needs, this
Inventive embodiments are not especially limited to this.
Below, the course of work to optical module booster circuit shown in Fig. 3 embodiments is described in detail.
After optical module is inserted into optical fiber communication equipment, the power supply POWER's and MCU21 of optical fiber communication equipment
VIN pins and the connection of the VIN pins of dc-dc 27.Now, dc-dc 27 is not enabled on (dc-dc 27
EN pins do not receive enable signal), therefore, the metal-oxide-semiconductor 23 in dc-dc 27 fails to start work, and fiber optic communication sets
Standby power supply POWER can not only be realized by inductance 24 to be charged normal to electric capacity 22.
After optical module is inserted into optical fiber communication equipment, MCU21 DAC by first resistor 28 and second resistance 29 to
Electric capacity 22 charges.After MCU21 DAC charges preset duration to electric capacity 22, or, reached in DAC output voltage default
After magnitude of voltage (now the magnitude of voltage at the two ends of electric capacity 22 reaches corresponding voltage), MCU21 is changed by I/O pins to DC-DC
The EN pins of device 27, which are sent, enables signal, so that dc-dc 27 starts work.It should be noted that passing through I/ in MCU21
O pins are sent to the EN pins of dc-dc 27 enable signal after, MCU21 can control DAC to suspend to fill to electric capacity 22
Electricity, MCU21 can also control DAC to continue to charge to electric capacity 22, and the embodiment of the present invention is not especially limited to this.
After dc-dc 27 starts work, the metal-oxide-semiconductor 23 being integrated in dc-dc 27 also starts work,
After metal-oxide-semiconductor 23 starts work, dc-dc 27 can control metal-oxide-semiconductor 23 periodically disconnect and close.Specifically
, when metal-oxide-semiconductor 23 is closed, metal-oxide-semiconductor 23 is by diode 25 and the short circuit of inductance 24, so that power supply is in inductance 24 and metal-oxide-semiconductor
Charged in 23 loop to inductance 24L, when metal-oxide-semiconductor 23 disconnects, on inductance 24, diode 25, the loop of electric capacity 22, inductance
24 charge to electric capacity 22；The process is repeated, so that the power supply of optical fiber communication equipment persistently can charge to electric capacity 22.
During the power supply of optical fiber communication equipment is charged by inductance 24 to electric capacity 22, dc-dc 27
The voltage at the second end of first resistor 28 can also be gathered by FB pins, and in the voltage at the second end of first resistor 28
When predeterminated voltage, Regulate signal is sent to metal-oxide-semiconductor 23, to adjust the dutycycle of metal-oxide-semiconductor 23.Wherein, the of first resistor 28
The voltage at two ends has preset ratio relation with the voltage at the two ends of electric capacity 22, the preset ratio relation and first resistor 28, second
The resistance of resistance 29 and 3rd resistor 210 is related, for example, first resistor 28, second resistance 29 and 3rd resistor 210 can be set
Resistance size so that the magnitude of voltage at the second end of first resistor 28 be equal to the both end voltage value of electric capacity 22 half.DC-DC is changed
The magnitude of voltage that device 27 can be collected by FB pins, weighs the magnitude of voltage at the two ends of electric capacity 22, when dc-dc 27 judges
When the magnitude of voltage that FB pins are collected is not equal to predeterminated voltage, illustrate that the voltage at the two ends of electric capacity 22 is not equal to predeterminated voltage correspondence
Magnitude of voltage, therefore, the magnitude of voltage that dc-dc 27 is collected according to FB pins, adjust metal-oxide-semiconductor 23 dutycycle, with
The speed that the power supply of regulation optical fiber communication equipment is charged by inductance 24 to electric capacity 22.
After being charged to electric capacity 22, electric capacity 22 can power to photoelectricity avalanche diode 25.It should be noted that electric capacity
22 processes powered to photoelectricity avalanche diode 25 may refer to prior art, and the embodiment of the present invention is not especially limited to this.
In the embodiment shown in fig. 3, after optical module insertion optical fiber communication equipment, MCU21 first charges to electric capacity 22,
After MCU21 charges a period of time to electric capacity 22, MCU21 controls dc-dc 27 to start again, so that optical fiber communication equipment
Power supply can be charged by inductance 24 to electric capacity 22.After MCU21 charges a period of time to electric capacity 22, electric capacity 22
Two ends have certain voltage, reduce the voltage difference between the power supply of optical fiber communication equipment and electric capacity 22, so, logical
Cross the power supply of optical fiber communication equipment to electric capacity 22 charge when, it is possible to reduce the electric current produced in circuit, it is to avoid larger
Infringement of the electric current to the part in optical module, and then improve the stability of optical module.
, optionally, can be in circuit in order to ensure the stable operation of circuit on the basis of any one above-mentioned embodiment
Middle setting wave filter.For the ease of description, on the basis of embodiment illustrated in fig. 3, traveling one is entered by the embodiment shown in Fig. 4
Step is discussed in detail.
Fig. 4 is the structural representation three of optical module booster circuit provided in an embodiment of the present invention.In embodiment illustrated in fig. 3
On the basis of, Fig. 4 is referred to, multiple filter circuits 211 are provided with optical module booster circuit, wherein, different filter circuits
In component may be different.
Filter circuit is provided with the VIN pins of dc-dc 27, the filter circuit can ensure that fiber optic communication is set
Standby power supply is smoothly powered to dc-dc 27.Between the two ends of diode 25 and diode 25 and ground
It is also equipped with filter circuit.The operation principle of each wave filter is no longer described in detail the embodiment of the present invention.
The embodiment of the present invention also provides a kind of optical module, and the optical module includes the optical module liter shown in above-mentioned any embodiment
Volt circuit.
Finally it should be noted that：Various embodiments above is only to the technical scheme for illustrating the embodiment of the present invention, rather than to it
Limitation；Although the embodiment of the present invention is described in detail with reference to foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in foregoing embodiments, or to which part or
All technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this hair
The scope of bright embodiment scheme.
Claims (10)
1. a kind of optical module booster circuit, it is characterised in that including micro-control unit MCU, electric capacity, metal-oxide-semiconductor, inductance, diode,
Avalanche photodide, wherein,
The first end of the inductance is connected with the first end of the metal-oxide-semiconductor and the first end of the diode respectively, the inductance
The second end be used for be connected with the power supply of optical fiber communication equipment；
The first end of the electric capacity is connected with the second end of the diode and the input of the avalanche diode respectively, described
Second end of electric capacity is grounded with the second end of the metal-oxide-semiconductor；
Wherein, the MCU is used to charge to the electric capacity, and after being charged to the electric capacity, controls the fiber optic communication to set
It is standby to be charged by the inductance to the electric capacity.
2. optical module booster circuit according to claim 1, it is characterised in that the optical module booster circuit also includes
Dc-dc, the metal-oxide-semiconductor is integrated in the dc-dc, the dc-dc respectively with the MCU and institute
The power supply connection of optical fiber communication equipment is stated,
Accordingly, the MCU is specifically for electric capacity charging, and after being charged to the electric capacity, to the DC-DC
Converter, which is sent, enables signal, to start the dc-dc；Wherein, it is described after dc-dc startup
Optical fiber communication equipment is charged by the inductance to the electric capacity.
3. optical module booster circuit according to claim 2, it is characterised in that the MCU is connected by DAC and the electric capacity
Connect, accordingly,
The MCU specifically for, charged by the DAC to the electric capacity, and it is determined that the output voltage of the DAC be more than or
During equal to predeterminated voltage, the enable signal is sent to the dc-dc.
4. the optical module booster circuit according to Claims 2 or 3, it is characterised in that the dc-dc is drawn by EN
Pin is connected with the control end of the MCU and one end of pull down resistor respectively, the other end ground connection of the pull down resistor.
5. the optical module booster circuit according to Claims 2 or 3, it is characterised in that the optical module booster circuit is also wrapped
Wave filter is included, the wave filter is arranged on the VIN pins of the dc-dc and the power supply of the optical fiber communication equipment
Between.
6. the optical module booster circuit according to Claims 2 or 3, it is characterised in that optical module booster circuit also includes the
One resistance, second resistance and 3rd resistor, wherein,
The MCU is connected by DAC output end with the first end of the first resistor；
Second end of the first resistor is connected with the first end of the second resistance and the first end of the 3rd resistor respectively；
Second end of the second resistance is connected with the first end of the electric capacity, the second end ground connection of the 3rd resistor.
7. optical module booster circuit according to claim 6, it is characterised in that the 3rd resistor is more than the described first electricity
Resistance, the second resistance is more than the 3rd resistor.
8. optical module booster circuit according to claim 6, it is characterised in that the dc-dc is also with described
The second end connection of one resistance, wherein,
The dc-dc is additionally operable to obtain the voltage at the second end of the first resistor, and the of the first resistor
When the voltage at two ends is not equal to predeterminated voltage, Regulate signal is sent to the metal-oxide-semiconductor, to adjust the dutycycle of the metal-oxide-semiconductor.
9. optical module booster circuit according to claim 1 or 2, it is characterised in that
The output voltage of the DAC is more than 1 volt and less than 5 volts；
The first resistor and the 3rd resistor are less than 10 kilohms, and the second resistance is more than 100 kilohms and less than 500
Kilohm.
10. a kind of optical module, it is characterised in that including the optical module booster circuit described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374927.5A CN107196505A (en) | 2017-05-24 | 2017-05-24 | Optical module booster circuit and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374927.5A CN107196505A (en) | 2017-05-24 | 2017-05-24 | Optical module booster circuit and optical module |
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| CN107196505A true CN107196505A (en) | 2017-09-22 |
Family
ID=59875642
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710374927.5A Pending CN107196505A (en) | 2017-05-24 | 2017-05-24 | Optical module booster circuit and optical module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375691A (en) * | 2018-11-06 | 2019-02-22 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| US10784968B2 (en) | 2018-11-06 | 2020-09-22 | Hisense Broadband Multimedia Technologies Co., Ltd. | Optical module |
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| CN102255505A (en) * | 2011-07-29 | 2011-11-23 | 索尔思光电（成都）有限公司 | APD (avalanche photo diode) voltage control circuit and method |
| CN103825458A (en) * | 2014-03-21 | 2014-05-28 | 大陆汽车投资（上海）有限公司 | Direct current-direct current converter and pre-charge method |
| CN103840884A (en) * | 2014-03-27 | 2014-06-04 | 上海斐讯数据通信技术有限公司 | Chip applied to GPON optical module and BOB |
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- 2017-05-24 CN CN201710374927.5A patent/CN107196505A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255505A (en) * | 2011-07-29 | 2011-11-23 | 索尔思光电（成都）有限公司 | APD (avalanche photo diode) voltage control circuit and method |
| CN103825458A (en) * | 2014-03-21 | 2014-05-28 | 大陆汽车投资（上海）有限公司 | Direct current-direct current converter and pre-charge method |
| CN103840884A (en) * | 2014-03-27 | 2014-06-04 | 上海斐讯数据通信技术有限公司 | Chip applied to GPON optical module and BOB |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375691A (en) * | 2018-11-06 | 2019-02-22 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| US10784968B2 (en) | 2018-11-06 | 2020-09-22 | Hisense Broadband Multimedia Technologies Co., Ltd. | Optical module |
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Application publication date: 20170922 |