CN109391251A - The driving circuit and device of avalanche photodide - Google Patents
The driving circuit and device of avalanche photodide Download PDFInfo
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- CN109391251A CN109391251A CN201811402414.1A CN201811402414A CN109391251A CN 109391251 A CN109391251 A CN 109391251A CN 201811402414 A CN201811402414 A CN 201811402414A CN 109391251 A CN109391251 A CN 109391251A
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- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0081—Power supply means, e.g. to the switch driver
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Abstract
The present invention discloses the driving circuit and device of a kind of avalanche photodide, the driving circuit of the avalanche photodide includes power input, booster circuit, voltage regulator circuit and driving signal output end, and the driving signal output end is for connecting avalanche photodide.The power input input supply voltage, the booster circuit carries out boosting processing to the supply voltage and exports, the voltage regulator circuit exports after carrying out voltage adjusting to the supply voltage after booster circuit boosting to the driving signal output end, it is gradually increasing with controlling the voltage of the driving signal output end according to default rate of pressure rise, until reaching the operating voltage of avalanche photodide.The present invention technical problem excessive for existing avalanche photodide surge current.
Description
Technical field
The present invention relates to drive areas, the in particular to driving circuit and device of avalanche photodide.
Background technique
In the prior art, with the development of electronic technology, various electronic equipments are more and more, two pole of avalanche optoelectronic
Pipe is widely used in various circuits as a kind of common photoelectron element, and in use, snowslide light
Electric diode needs a high voltage to start, this high voltage is generally realized after multiplication of voltage by supply voltage, and in snowslide
The moment that circuit where photodiode has just been begun to turn on, since cut-in voltage can instantaneously reach a great value, at this time
Great surge voltage can be generated in circuit, to damage avalanche photodide.
Summary of the invention
The main object of the present invention is the driving circuit for proposing a kind of avalanche photodide, it is intended to solve existing snowslide
The excessive problem of photodiode surge current.
To achieve the above object, the present invention proposes a kind of driving circuit of avalanche photodide, the avalanche optoelectronic two
The driving circuit of pole pipe includes power input, booster circuit, voltage regulator circuit and driving signal output end, the driving letter
Number output end is for connecting avalanche photodide；
The power input is used for input supply voltage；
The booster circuit, for carrying out boosting processing to the supply voltage and exporting；
The voltage regulator circuit, for being exported after carrying out voltage adjusting to the supply voltage after booster circuit boosting
To the driving signal output end, it is gradually increasing with controlling the voltage of the driving signal output end according to default rate of pressure rise,
Until reaching the operating voltage of avalanche photodide.
Preferably, the power input is connect with the input terminal of the booster circuit.
Preferably, the booster circuit includes power end, controlled end, feedback signal input terminal, the first output end and second
Output end, the voltage regulator circuit include control signal output, first input end, the second input terminal, first voltage output
End and second voltage output end, the power end of the booster circuit connect with the power input, the booster circuit by
Control end connect with the control signal output of the voltage regulator circuit, the feedback signal input terminal of the booster circuit with it is described
The first voltage output end of voltage regulator circuit connects, the first output end and the voltage regulator circuit of the booster circuit
First input end connection, the second output terminal of the booster circuit are connect with the second input terminal of the voltage regulator circuit, institute
The second voltage output end for stating voltage regulator circuit is the driving signal output end.
Preferably, the booster circuit includes times die block and DC conversion modules, and the DC conversion modules include electricity
Source, enabled input terminal, feedback input end and output end, the power end of the DC conversion modules and the power input connect
It connects, the enabled input terminal of the DC conversion modules is connect with the control signal output of the voltage regulator circuit, described straight
The feedback input end of stream conversion module is connect with the first voltage output end of the voltage regulator circuit, the DC conversion modules
Output end connect with the input terminal of described times of die block, the first output end of described times of die block and the voltage regulator circuit
The connection of first input end end, the second output terminal of described times of die block connect with second input terminal of voltage regulator circuit.
Preferably, the DC conversion modules include the first chip and the first inductance, and first chip includes that power supply is defeated
Enter foot, enabled input pin, feed back input foot and output pin, the of the power input foot of first chip and first inductance
The connecting node of the first end of one end connection, the power input foot of first chip and first inductance turns for the direct current
The power end of block is changed the mold, the enabled input pin of first chip is the enabled input terminal of the DC conversion modules, described the
The feed back input foot of one chip is the feedback input end of the DC conversion modules, the output pin of first chip and described the
The second end of one inductance connects, and the connecting node of the second end of the output pin of first chip and first inductance is described
The output end of DC conversion modules.
Preferably, the voltage-multiplying circuit includes first diode, the second diode, third diode, first capacitor and
Two capacitors, the first end of the first capacitor are connect with the anode of the first diode, the first capacitor and described first
The connecting node of diode be the voltage-multiplying circuit input terminal, the second end of the first capacitor respectively with the three or two pole
The connection of the cathode of the anode of pipe and second diode；The cathode of the third diode is the first defeated of the voltage-multiplying circuit
Outlet, the anode of second diode connect with the cathode of the first diode and with the first end of second capacitor respectively
It connects, the second output terminal of connecting node times die block for described in of second diode and second capacitor, described second
The second end of capacitor is grounded.
Preferably, the voltage regulator circuit includes controller, bleeder circuit and accumulator, and the bleeder circuit includes
Input terminal, the first output end and second output terminal, the accumulator include first input end and the second input terminal, the control
The control signal output of device is connect with the enabled input terminal of the DC conversion modules, the output end of the controller with it is described
The input terminal of bleeder circuit connects；First output end of the bleeder circuit and the feedback input end of the DC conversion modules connect
Connect, the first input end of the accumulator respectively with the second output terminal of the bleeder circuit and the voltage-multiplying circuit first
Output end connection, the second input terminal of the accumulator are connect with the second output terminal of described times of die block, the energy storage electricity
The output end on road is the driving signal output end；First output end of the bleeder circuit is the of the voltage regulator circuit
One voltage output end.
Preferably, the bleeder circuit includes first resistor, second resistance and 3rd resistor, and the first of the first resistor
It holds, the first end of the second resistance is connected with the first end of the 3rd resistor, the first resistor and the 3rd resistor
Connecting node be the bleeder circuit the first output end, the first resistor second end ground connection；The 3rd resistor
The junction of first output end of second end and the voltage-multiplying circuit is the second output terminal of the bleeder circuit.
Preferably, the first resistor is identical as the resistance value of the second resistance.
Preferably, the accumulator includes third capacitor, the 4th capacitor, the 5th capacitor and the 4th resistance, the third
The first end of capacitor is connect with the first end of the first end of the 4th capacitor and the 4th resistance respectively, the third capacitor
The first input end of the accumulator is also connected to form with the cathode of the third diode of voltage-multiplying circuit, the third capacitor
Second end is connect with the anode of the cathode of the first diode of the voltage-multiplying circuit and the second diode respectively, the third capacitor
Connecting node with the first diode is the second input terminal of the accumulator；The first end of 5th capacitor and institute
The second end for stating the 4th resistance connects, and the connecting node of the 5th capacitor and the 4th resistance is the defeated of the accumulator
Outlet, the second end of the 5th capacitor, the second end of the 4th capacitor are grounded.
To achieve the above object, the present invention also proposes a kind of device, the drive including avalanche photodide as described above
Dynamic circuit.
The present invention passes through the driving circuit in a kind of avalanche photodide, the driving circuit of the avalanche photodide
Including power input, booster circuit, voltage regulator circuit and driving signal output end, the driving signal output end is for connecting
Connect avalanche photodide.Firstly, the power input input supply voltage, the booster circuit to the supply voltage into
Row boosting is handled and is exported, and the last voltage regulator circuit carries out voltage tune to the supply voltage after booster circuit boosting
Output is to the driving signal output end after section, with control the voltage of the driving signal output end according to default rate of pressure rise by
Gradually rise, until reaching the operating voltage of avalanche photodide.So that the driving voltage of avalanche photodide gradually rises
To operating voltage, reduce the generation of surge current, to realize the purpose for reducing avalanche photodide surge current.The present invention
For solving the excessive technical problem of existing avalanche photodide surge current.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the module diagram of the driving circuit of avalanche photodide of the present invention；
Fig. 2 is the circuit connection diagram of the driving circuit of avalanche photodide of the present invention；
Fig. 3 is the circuit diagram of the driving circuit of avalanche photodide of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of driving circuit of avalanche photodide, for solving existing avalanche photodide wave
Gush the excessive technical problem of electric current.
In one embodiment of this invention, as shown in Figure 1, 2, a kind of driving circuit of avalanche photodide includes power supply
Input terminal 101, booster circuit 102, voltage regulator circuit 103 and driving signal output end 104, driving signal output end 104 are used
In connection avalanche photodide.Power input 101 is connect with the input terminal of booster circuit 102.Booster circuit 102 includes electricity
Source, controlled end, feedback signal input terminal, the first output end and second output terminal, voltage regulator circuit 103 include control signal
Output end, first input end, the second input terminal, first voltage output end and second voltage output end, the power supply of booster circuit 102
End is connect with power input 101, and the controlled end of booster circuit 102 and the control signal output of voltage regulator circuit 103 connect
It connects, the feedback signal input terminal of booster circuit 102 is connect with the first voltage output end of voltage regulator circuit 103, booster circuit
102 the first output end is connect with the first input end of voltage regulator circuit 103, the second output terminal and electricity of booster circuit 102
Second input terminal of voltage regulator circuit 103 connects, and the second voltage output end of voltage regulator circuit 103 is driving signal output end
104。
Wherein, power input 101 are used for input supply voltage.Booster circuit 102 carries out boosting processing to supply voltage
And export, it is easy to generate surge current in boosting treated voltage at this time, output to avalanche photodide is to damage
Bad avalanche photodide.At this point, increasing voltage regulator circuit 103 in circuit, voltage regulator circuit 103 is to booster circuit
Output is to driving signal output end 104 after supply voltage after 102 boostings carries out voltage adjusting, to control driving signal output end
104 voltage is gradually increasing according to default rate of pressure rise, until reaching the operating voltage of avalanche photodide.At this point, voltage
It adjusts the voltage that circuit 103 exports booster circuit to be adjusted, so that work electricity of the output to avalanche photodide
It presses and is gradually increasing according to default rate of pressure rise, be not in generate biggish surge current because voltage change is excessive, to reach
To the purpose of protection avalanche photodide.Optionally, default rate of pressure rise is gradually increasing can be set in advance by booster circuit 102
It sets, the specific rate that is arranged can integrate the size decision for the surge current that opening time and avalanche photodide can bear.
In above-described embodiment, the first voltage output end and the feedback signal of booster circuit 102 of voltage regulator circuit 103 are defeated
Enter end connection, when the first voltage output end of voltage regulator circuit 103 changes voltage, the feedback signal of booster circuit 102 is defeated
The voltage for entering end changes, and booster circuit 102 can adjust the output of booster circuit 102 in time according to the voltage of feedback, so that through
The driving voltage that voltage regulator circuit 103 exports gradually rises, and reaches the unlatching value of avalanche photodide, is further ensured that electricity
The generation of surge current is in controlled range in road.
Optionally, as shown in Fig. 2, booster circuit 102 includes times die block 1022 and DC conversion modules 1021, direct current turns
Changing the mold block 1021 includes power end, enabled input terminal, feedback input end and output end, the power end of DC conversion modules 1021 with
Power input 101 connects, and the enabled input terminal of DC conversion modules 1021 and the control signal of voltage regulator circuit 103 export
End connection, the feedback input end of DC conversion modules 1021 are connect with the first voltage output end of voltage regulator circuit 103, direct current
The output end of conversion module 1021 is connect with the input terminal of times die block 1022, the first output end and voltage of times die block 1022
Adjust the first input end connection of circuit 103, the second of the second output terminal of times die block 1022 and voltage regulator circuit 103 is defeated
Enter end connection.
Wherein, DC conversion modules 1021 are turned on or off according to the received control signal of enabled input terminal, meanwhile, directly
The feedback input end of stream conversion module 1021 is connect with voltage regulator circuit 103, when the feedback output end of voltage regulator circuit 103
When the voltage of output changes, DC conversion modules 1021 change the first output end and second according to the voltage that feedback input end inputs
The size of output end voltage, to play the role of adjusting voltage.
Optionally, DC conversion modules 1021 include the first chip U1 and the first inductance L1, and the first chip U1 includes power supply
Input pin IN, enabled input pin EN, feed back input foot FB and output pin SW, the power input foot IN of the first chip U1 and the first electricity
The first end for feeling L1 connects, and the connecting node of the first end of the power input foot IN of the first chip U1 and the first inductance L1 is direct current
The power end of conversion module 1021, the enabled input pin EN of the first chip U1 are the enabled input terminal of DC conversion modules 1021,
The feed back input foot FB of first chip U1 be DC conversion modules 1021 feedback input end, the output pin SW of the first chip U1 with
The second end of first inductance L1 connects, and the connecting node of the second end of the output pin SW of the first chip U1 and the first inductance L1 is straight
Flow the output end of conversion module 1021.
Wherein, the first chip U1 is DC-DC chip, as the power input foot IN and the first chip U1 of the first chip U1
When output pin SW is incorporated to an inductance, and the diode in the output pin SW of the first chip U1 and subsequent times of die block 1022 is just
Pole connection, and when the cathode of diode and voltage regulator circuit 103 (loading), if the feed back input foot FB of the first chip U1 is defeated
Enter the voltage to be gradually reduced, then the output pin SW of the first chip U1 is the voltage being gradually increased, and the effect of boosting may be implemented.
Optionally, times die block 1022 includes first diode D1, the second diode D2, third diode D3, the first electricity
The first end for holding C1 and the second capacitor C2, first capacitor C1 is connect with the anode of first diode D1, first capacitor C1 and first
The connecting node of diode D1 be times die block 1022 input terminal, the second end of first capacitor C1 respectively with third diode D3
Anode and the second diode D2 cathode connection；The cathode of third diode D3 is the first output end of times die block 1022,
The anode of second diode D2 is connect with the first end of the cathode of first diode D1 and the second capacitor C2 respectively, the second diode
The connecting node of D2 and the second capacitor C2 are the second output terminal of times die block 1022, the second end ground connection of the second capacitor C2.
Wherein, times die block 1022 passes through first diode D1, the second diode D2, the second capacitor C2 and first capacitor C1
Between access realize the effect of multiplication of voltage, at this time first diode D1, the second diode D2, the second capacitor C2 and first capacitor C1
Times die block 1022 can be individually composed, wherein the second capacitor C2 and first capacitor C1 play the role of energy storage, thus the one or two
The multiplication of pole pipe D1, the second diode D2 realization voltage.It is worth noting that, third diode D3 this moment can be played and be filtered out
The effect of alternating current, to stablize the voltage that times die block 1022 exports.
Optionally, voltage regulator circuit 103 includes controller MCU, bleeder circuit 1041 and accumulator 1042, partial pressure electricity
Road 1041 includes input terminal, the first output end and second output terminal, and accumulator 1041 includes first input end and the second input
End, the control signal output EN of controller MCU are connect with the enabled input terminal of DC conversion modules 1021, controller MCU's
The input terminal of output end V2 and bleeder circuit connection, wherein the first output end and DC conversion modules of bleeder circuit 1041
1021 feedback input end connection, the first input end of accumulator 1042 respectively with the second output terminal of bleeder circuit and multiplication of voltage
First output end of module 1022 connects, and the second input terminal of accumulator 1042 and the second output terminal of times die block 1022 connect
It connects, the output end of accumulator 1042 is driving signal output end.First output end of bleeder circuit 1041 is that voltage adjusts electricity
The first voltage output end on road 103.
Wherein, bleeder circuit 1041 divides the controller MCU output end V2 voltage exported, and in accumulator
Under the action of the voltage of 1042 storages, the voltage that voltage regulator circuit 103 exports is promoted steadily, to reduce surge current.
It is worth noting that, controller MCU can be various types of microprocessors or chip, it is only necessary to realize control and on demand output electricity
Pressure, concrete type is herein with no restrictions.
Optionally, bleeder circuit 1041 includes first resistor R1, second resistance R2 and 3rd resistor R3, first resistor R1's
First end, the first end of second resistance R2 are connected with the first end of 3rd resistor R3, the company of first resistor R1 and 3rd resistor R3
Connect node be bleeder circuit 1041 the first output end, first resistor R1 second end ground connection, the second end of 3rd resistor R3 with
The junction of first output end of voltage-multiplying circuit 1022 is the second output terminal of bleeder circuit 1041.
Wherein, the output end of controller MCU exports low level to the enabled input terminal EN of DC conversion modules 1021, at this time
DC conversion modules 1021 are defaulted after powering on not to work, the partial pressure electricity connecting with the feedback input end FB of DC conversion modules 1021
First resistor R1 is equal to second resistance R2 in road 1041, and the resistance value of 3rd resistor R3 is much larger than first resistor R1 and second resistance
R2.It is arranged twice of the feed back input voltage that the first threshold voltage V2 that controller MCU is exported is DC conversion modules 1021, the first electricity
It hinders R1 and second resistance R2 and forms bleeder circuit, ideally the voltage of the output of bleeder circuit 1041 to avalanche photodide
Vapd is approximately equal to feedback voltage V FB；At this point, because the resistance value of 3rd resistor R3 is much larger than R1, R2, no electric current on 3rd resistor R3
By that is, accumulator 1042 does not charge.Then the first threshold voltage V2 stepping that setting controller MCU is exported reduces, and divides in this way
The output of circuit 1041 to the feed back input voltage steps in DC conversion modules 1021 are reduced, so that in DC conversion modules 1021
Output pin SW on voltage steps increase so that accumulator 1042 slowly charges, while accumulator can also be filtered
Except the presumable surge voltage of accumulator 1042, the effect of pressure stabilizing is played, and can be when boosting slow, adequate compensation a part
Pressure difference increases steadily to guarantee to export to the voltage of avalanche photodide, and such avalanche photodide reaches work electricity
The surge current that pressure generates will very little.
Optionally, accumulator 1042 includes third capacitor C3, the 4th capacitor C4, the 5th capacitor C5 and the 4th resistance R4.
The first end of third capacitor C3 connect third capacitor C3 with the first end of the first end of the 4th capacitor C4 and the 4th resistance R4 respectively
First end the first input end of accumulator 1042 is also connected to form with the cathode of the third diode D3 of voltage-multiplying circuit 1022,
The second end of the third capacitor C3 anode with the cathode of the first diode D1 of voltage-multiplying circuit 1022 and the second diode D2 respectively
The connecting node of connection, third capacitor C3 and first diode D1 are the second input terminal of accumulator 1042.5th capacitor C5
First end connect with the second end of the 4th resistance R4, the connecting node of the 5th capacitor and the 4th resistance is the output of accumulator
End, the second end of the 5th capacitor C5, the second end of the 4th capacitor C4 are grounded.
Wherein, the characteristic based on DC-DC chip, in the case that MCU control V2 stepping is reduced, FB voltage steps are reduced,
SW output end voltage stepping increases, and the voltage of SW output end is further amplified by booster circuit, at this point, accumulator
1042 third capacitor C3, the 4th capacitor C4, the 5th both ends capacitor C5 are each formed with voltage difference, can slow charging energy-storing, thus
So that avalanche photodide surge current during boosting to operating voltage is smaller.
It is illustrated below in conjunction with Fig. 1,2,3 pairs of the principle of the present invention:
When the enabled input pin EN ground connection of the first chip U1, controller MCU powers on default not by controlling the first chip U1
Work is (because the enabled input pin EN of the first chip U1 can keep the first chip U1 to power on but not by the 5th resistance R5 ground connection
Working condition).Controller MCU controls the first chip U1 by the enabled input pin EN of the first chip U1 and enables.That is controller MCU
The booster circuit 102 of the first chip U1 and the first inductance L1 composition can be closed by the enabled input pin EN of the first chip U1, or
Opening booster circuit 102, (wherein, the first inductance L1 connects the output pin of the power input foot IN and the first chip U1 of the first chip U1
When between SW, first diode D1, the second diode D2, third diode D3 the first chip of anode U1 output pin SW,
One diode D1, the second diode D2, third diode D3 cathode then show the first chip U1 and the first inductance when connecing load
The circuit of L1 composition is booster circuit 102).When the voltage V2 of controller MCU output is reduced, the feed back input foot of the first chip U1
FB feed back input voltage VFB is reduced, the first inductance L1 electric discharge, so that the electric current that the output pin SW of the first chip U1 is exported increases,
Times die block 1022 starts multiplication of voltage.At this point, because having many capacitors on entire times of die block 1022, such as third capacitor C3, the 4th
Capacitor C4 and the 5th capacitor C5, the voltage for powering on the output of rear times of die block 1022 can be to third capacitor C3, the 4th capacitor C4 and the
Five capacitor C5 charging, causes to generate surge on supply current.Therefore, when booster circuit 102 is not started to work, controller is first allowed
The first threshold voltage of the output of the output end of MCU is the feed back input foot FB feed back input i.e. 2VFB of voltage of twice of first chip U1, times
The output voltage Vapd of die block 1022 exports minimum, is approximately equal to the feed back input foot FB feed back input voltage of the first chip U1
VFB。
If first resistor R1 is equal to second resistance R2 at this time, just flowed through without electric current on 3rd resistor R3.Thus voltage is anti-
It is optimal for presenting (voltage feedback).
After controller MCU driving DC conversion modules 1021 power on, the default of DC conversion modules 1021 does not work, this time-division
First resistor R1 is equal to second resistance R2 in volt circuit 1041, and the first threshold voltage that setting controller MCU is exported is the first chip U1
Twice of feed back input foot FB feed back input voltage VFB so that electricity of the output of bleeder circuit 1041 to avalanche photodide
Pressure is approximately equal to feedback voltage V FB for minimum voltage Vapd in the ideal case, at this point, no electric current passes through on 3rd resistor R3,
I.e. accumulator 1042 does not charge.Then stepping setting reduces the output voltage of controller MCU, and such bleeder circuit 1041 exports
Feed back input voltage steps on to DC conversion modules 1021 are reduced, so that on the output pin SW in DC conversion modules 1021
Voltage steps increase, after boosting using voltage-multiplying circuit 1022, so that capacitor both ends on accumulator form voltage difference；The
Three capacitor C3, the 4th capacitor C4, the 5th capacitor C5 slowly charge, such avalanche photodide from minimum voltage Vapd (about etc.
In VFB) gradually boosting reach operating voltage generation surge current will very little.To the driving circuit of avalanche photodide
Surge current can be reduced, realizes the smooth starting of avalanche photodide.
To solve the above-mentioned problems, the present invention also proposes a kind of device, the driving including avalanche photodide as above
Circuit.
It is worth noting that, because apparatus of the present invention contain all real of the driving circuit of above-mentioned avalanche photodide
Example is applied, therefore apparatus of the present invention have all beneficial effects of the driving circuit of above-mentioned avalanche photodide, it is no longer superfluous herein
It states.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of driving circuit of avalanche photodide, which is characterized in that the driving circuit packet of the avalanche photodide
Power input, booster circuit, voltage regulator circuit and driving signal output end are included, the driving signal output end is for connecting
Avalanche photodide；
The power input is used for input supply voltage；
The booster circuit, for carrying out boosting processing to the supply voltage and exporting；
The voltage regulator circuit, for exporting after carrying out voltage adjusting to the supply voltage after booster circuit boosting to institute
Driving signal output end is stated, is gradually increasing with controlling the voltage of the driving signal output end according to default rate of pressure rise, until
Reach the operating voltage of avalanche photodide.
2. the driving circuit of avalanche photodide as described in claim 1, which is characterized in that the booster circuit includes electricity
Source, controlled end, feedback signal input terminal, the first output end and second output terminal, the voltage regulator circuit include control letter
Number output end, first input end, the second input terminal, first voltage output end and second voltage output end, the booster circuit
Power end is connect with the power input, and the controlled end of the booster circuit and the control signal of the voltage regulator circuit are defeated
Outlet connection, the feedback signal input terminal of the booster circuit are connect with the first voltage output end of the voltage regulator circuit,
First output end of the booster circuit is connect with the first input end of the voltage regulator circuit, and the second of the booster circuit
Output end is connect with the second input terminal of the voltage regulator circuit, and the second voltage output end of the voltage regulator circuit is institute
State driving signal output end.
3. the driving circuit of avalanche photodide as claimed in claim 2, which is characterized in that the booster circuit includes straight
Conversion module and times die block are flowed, the DC conversion modules include power end, enabled input terminal, feedback input end and output
End, the power end of the DC conversion modules are connect with the power input, the enabled input terminal of the DC conversion modules
It is connect with the control signal output of the voltage regulator circuit, the feedback input end of the DC conversion modules and the voltage
The first voltage output end connection of circuit is adjusted, the output end of the DC conversion modules and the input terminal of described times of die block connect
It connects；First output end of described times of die block is connect with the first input end of the voltage regulator circuit, described times of die block
Second output terminal is connect with second input terminal of voltage regulator circuit.
4. the driving circuit of avalanche photodide as claimed in claim 3, which is characterized in that the DC conversion modules packet
The first chip and the first inductance are included, first chip includes power input foot, enabled input pin, feed back input foot and output
Foot, the power input foot of first chip are connect with the first end of first inductance, the power input of first chip
The connecting node of the first end of foot and first inductance is the power end of the DC conversion modules, and first chip makes
Energy input pin is the enabled input terminal of the DC conversion modules, and the feed back input foot of first chip is direct current conversion
The feedback input end of module, the output pin of first chip are connect with the second end of first inductance, first chip
Output pin and first inductance second end connecting node be the DC conversion modules output end.
5. the driving circuit of avalanche photodide as claimed in claim 3, which is characterized in that described times of die block includes the
One diode, the second diode, third diode, first capacitor and the second capacitor, the first end of the first capacitor with it is described
The anode of first diode connects, and the connecting node of the first capacitor and the first diode is the defeated of times die block
Enter end, the second end of the first capacitor connects with the cathode of the anode of the third diode and second diode respectively
It connects；The cathode of the third diode is the first output end of times die block, the anode of second diode respectively with
The connection of the first end of the cathode of the first diode and second capacitor, second diode and second capacitor
Connecting node is the second output terminal of times die block, the second end ground connection of second capacitor.
6. such as the driving circuit of the described in any item avalanche photodides of claim 3-5, which is characterized in that the voltage tune
Economize on electricity road includes controller, bleeder circuit and accumulator, and the bleeder circuit includes that input terminal, the first output end and second are defeated
Outlet, the accumulator include first input end and the second input terminal, the control signal output of the controller with it is described
The enabled input terminal of DC conversion modules connects, and the output end of the controller is connect with the input terminal of the bleeder circuit, institute
The first output end for stating bleeder circuit is connect with the feedback input end of the DC conversion modules；The first of the accumulator is defeated
Enter end to connect with the first output end of the second output terminal of the bleeder circuit and described times of die block respectively, the accumulator
The second input terminal connect with the second output terminal of described times of die block, the output end of the accumulator is the driving signal
Output end；First output end of the bleeder circuit is the first voltage output end of the voltage regulator circuit.
7. the driving circuit of avalanche photodide as claimed in claim 6, which is characterized in that the bleeder circuit includes the
One resistance, second resistance and 3rd resistor, the first end of the first resistor, the first end of the second resistance and the third
The first end of resistance connects, and the connecting node of the first resistor and the 3rd resistor is the first output of the bleeder circuit
End, the second end ground connection of the first resistor；First output end of the second end of the 3rd resistor and the voltage-multiplying circuit
Junction is the second output terminal of the bleeder circuit.
8. the driving circuit of avalanche photodide as claimed in claim 7, which is characterized in that the first resistor with it is described
The resistance value of second resistance is identical.
9. the driving circuit of avalanche photodide as claimed in claim 6, which is characterized in that the accumulator includes the
Three capacitors, the 4th capacitor, the 5th capacitor and the 4th resistance, the first end of the third capacitor respectively with the 4th capacitor
The first end of one end and the 4th resistance connection, the first end of the third capacitor also with the third diode of multiplication of voltage voltage
Cathode is connected to form the first input end of the accumulator, the second end of the third capacitor respectively with the voltage-multiplying circuit
The connection of the anode of the cathode of first diode and the second diode, the connecting node of the third capacitor and the first diode
For the second input terminal of the accumulator；The first end of 5th capacitor is connect with the second end of the 4th resistance, institute
The connecting node for stating the 5th capacitor and the 4th resistance is the output end of the accumulator, the second of the 5th capacitor
It holds, the second end of the 4th capacitor is grounded.
10. a kind of device, which is characterized in that the driving including such as described in any item avalanche photodides of claim 1-9
Circuit.
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| CN201811402414.1A CN109391251B (en) | 2018-11-21 | 2018-11-21 | Avalanche photodiode driving circuit and device |
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| CN201811402414.1A CN109391251B (en) | 2018-11-21 | 2018-11-21 | Avalanche photodiode driving circuit and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431613A (en) * | 2020-03-20 | 2020-07-17 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN113012649A (en) * | 2021-02-02 | 2021-06-22 | 深圳市江元科技(集团)有限公司 | Backlight output circuit and terminal equipment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387658A (en) * | 2008-10-23 | 2009-03-18 | 成都优博创技术有限公司 | Detection circuit for auto detecting avalanche magnitude of voltage of avalanche photodiode and method |
| CN201429467Y (en) * | 2009-06-26 | 2010-03-24 | 深圳新飞通光电子技术有限公司 | Detection circuit for APD burst incident light strength |
| CN201601136U (en) * | 2010-01-13 | 2010-10-06 | 山东交通职业学院 | Temperature compensation circuit for laser receiving circuit |
| CN201828394U (en) * | 2010-02-02 | 2011-05-11 | 深圳市亚派光电器件有限公司 | Multi-rate compatible optical device sensitivity test device with adjustable working voltage |
| CN102122187A (en) * | 2010-11-19 | 2011-07-13 | 深圳市共进电子有限公司 | Method and device for quickly debugging avalanche diode in optical module production |
| US20110233385A1 (en) * | 2008-08-20 | 2011-09-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Avalanche Photodiode Circuits |
| CN103411691A (en) * | 2013-08-29 | 2013-11-27 | 南京大学 | Gigahertz sine gating near-infrared single photon detector with tunable frequency |
| US20160163886A1 (en) * | 2014-12-03 | 2016-06-09 | Realtek Semiconductor Corp. | Biasing voltage generating circuit for avalanche photodiode and related control circuit |
| CN105827236A (en) * | 2016-03-09 | 2016-08-03 | 合肥汇芯半导体科技有限公司 | Circuit structure used for driving silicon-based avalanche photodiode |
| CN107063452A (en) * | 2017-04-07 | 2017-08-18 | 电子科技大学 | A kind of single-photon avalanche photodiode capacitance quenching circuit |
| CN107271055A (en) * | 2016-04-20 | 2017-10-20 | 中国科学技术大学 | A kind of infrared single photon detectorses system of parallel avalanche photodiode array structure |
| CN208094183U (en) * | 2018-03-01 | 2018-11-13 | 中国航空无线电电子研究所 | Pre- regulator circuit with Surge suppression |
-
2018
- 2018-11-21 CN CN201811402414.1A patent/CN109391251B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110233385A1 (en) * | 2008-08-20 | 2011-09-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Avalanche Photodiode Circuits |
| CN101387658A (en) * | 2008-10-23 | 2009-03-18 | 成都优博创技术有限公司 | Detection circuit for auto detecting avalanche magnitude of voltage of avalanche photodiode and method |
| CN201429467Y (en) * | 2009-06-26 | 2010-03-24 | 深圳新飞通光电子技术有限公司 | Detection circuit for APD burst incident light strength |
| CN201601136U (en) * | 2010-01-13 | 2010-10-06 | 山东交通职业学院 | Temperature compensation circuit for laser receiving circuit |
| CN201828394U (en) * | 2010-02-02 | 2011-05-11 | 深圳市亚派光电器件有限公司 | Multi-rate compatible optical device sensitivity test device with adjustable working voltage |
| CN102122187A (en) * | 2010-11-19 | 2011-07-13 | 深圳市共进电子有限公司 | Method and device for quickly debugging avalanche diode in optical module production |
| CN103411691A (en) * | 2013-08-29 | 2013-11-27 | 南京大学 | Gigahertz sine gating near-infrared single photon detector with tunable frequency |
| US20160163886A1 (en) * | 2014-12-03 | 2016-06-09 | Realtek Semiconductor Corp. | Biasing voltage generating circuit for avalanche photodiode and related control circuit |
| CN105827236A (en) * | 2016-03-09 | 2016-08-03 | 合肥汇芯半导体科技有限公司 | Circuit structure used for driving silicon-based avalanche photodiode |
| CN107271055A (en) * | 2016-04-20 | 2017-10-20 | 中国科学技术大学 | A kind of infrared single photon detectorses system of parallel avalanche photodiode array structure |
| CN107063452A (en) * | 2017-04-07 | 2017-08-18 | 电子科技大学 | A kind of single-photon avalanche photodiode capacitance quenching circuit |
| CN208094183U (en) * | 2018-03-01 | 2018-11-13 | 中国航空无线电电子研究所 | Pre- regulator circuit with Surge suppression |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431613A (en) * | 2020-03-20 | 2020-07-17 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN113012649A (en) * | 2021-02-02 | 2021-06-22 | 深圳市江元科技(集团)有限公司 | Backlight output circuit and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109391251B (en) | 2024-04-19 |
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