CN107645290B - A kind of double capacitor positive feedbacks interaction accelerator, driving circuit and multi-stage accelerator - Google Patents
A kind of double capacitor positive feedbacks interaction accelerator, driving circuit and multi-stage accelerator Download PDFInfo
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- CN107645290B CN107645290B CN201610586652.7A CN201610586652A CN107645290B CN 107645290 B CN107645290 B CN 107645290B CN 201610586652 A CN201610586652 A CN 201610586652A CN 107645290 B CN107645290 B CN 107645290B
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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
- H03K17/04—Modifications for accelerating switching
- H03K17/041—Modifications for accelerating switching without feedback from the output circuit 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
- H03K17/28—Modifications for introducing a time delay before switching
Abstract
The invention proposes a kind of double capacitor positive feedback interaction accelerators, be delayed controllable drive circuitry and multi-stage accelerator, double capacitor positive feedback interaction accelerators are for carrying out acceleration processing to the enabling signal of electrifying startup circuit output, including the first speed-up capacitor, second speed-up capacitor, first pressure limiting resistance, second pressure limiting resistance, first biasing resistor, second biasing resistor, first triode and the second triode, first speed-up capacitor connects the collector of the second triode with one end after the first pressure limiting resistor coupled in parallel, the other end after parallel connection connects one end of the first biasing resistor and the base stage of the first triode simultaneously；One end after second speed-up capacitor and the second pressure limiting resistor coupled in parallel connects one end of the second biasing resistor and the base stage of the second triode simultaneously, and the other end after parallel connection connects the collector of the first triode.Accelerator of the invention realizes great start-up current and reduces the starting time.
Description
Technical field
The present invention relates to driving circuit Acceleration of starting technical fields more particularly to a kind of double capacitor positive feedback interactions to accelerate
Device and the delay controllable drive circuitry and multi-stage accelerator for using above-mentioned double capacitor positive feedbacks interaction accelerators.
Background technique
With the development of electronic science and technology, the application market of electronic product is more and more extensive, and then leads to various differences
The application of the power circuit or driving circuit of performance parameter is also more and more extensive, it is generally the case that power circuit or driving circuit
The power supply electrifying circuit or power reference circuit of use are in stable state off position, and an electrifying startup circuit generation is needed to open
Dynamic signal (usually starting current) makes it start to work normally.On the one hand, the starting of electrifying startup circuit in the prior art
Overlong time or circuit structure are more complex, or generalling use the capacitor of large capacitance causes circuit area excessive, increased costs,
The start-up circuit constituted for example, by using Schmidt trigger (ST, Schmitt Trigger)；In addition, in electronic equipment or
The power circuit of different performance parameter or the number of driving circuit used in electronic system are more and more, in order to guarantee that electronics is set
Standby or electronic system is normal, correctly starts and works, it is necessary to so that it respectively has different power supply electrifying timing, it is therefore desirable to
The electrifying startup circuit of use can be realized different delayed signals.
Summary of the invention
The present invention is for the existing starting overlong time of existing electrifying startup circuit or generallys use large capacitance electricity
Appearance leads to problems such as circuit volume excessive and can not realize multiple and different delayed signals, proposes a kind of double capacitors
Positive feedback interacts accelerator, carries out acceleration processing for the enabling signal to electrifying startup circuit output, which uses two
A speed-up capacitor is respectively cooperating with two pressure limiting resistance, generates very big starting current to be used for circuit electrifying startup, and subtract significantly
The starting time of electrifying startup circuit is lacked, while further can also be by cooperating time-delay structure (i.e. RC by being rationally arranged
Delay circuit) realize different delayed signals, meet the different electrifying timing sequence demands of different electronic products.The present invention also relates to
And a kind of delay controllable drive circuitry and multi-stage accelerator using above-mentioned double capacitor positive feedback interaction accelerators.
Technical scheme is as follows:
A kind of double capacitor positive feedback interaction accelerators, carry out at acceleration for the enabling signal to electrifying startup circuit output
Reason, which is characterized in that partially including the first speed-up capacitor, the second speed-up capacitor, the first pressure limiting resistance, the second pressure limiting resistance, first
Set resistance, the second biasing resistor, the first triode and the second triode, first speed-up capacitor and the first pressure limiting resistor coupled in parallel
One end afterwards connects the collector of second triode, and the other end after parallel connection connects the one of first biasing resistor simultaneously
The emitter of the base stage of end and first triode, the other end of first biasing resistor and first triode is equal
Ground connection；One end after second speed-up capacitor and the second pressure limiting resistor coupled in parallel connects one end of second biasing resistor simultaneously
And the base stage of second triode, the other end after parallel connection connect the collector of first triode, described second partially
The emitter of the other end and second triode of setting resistance is all connected with power input；
Double capacitor positive feedback interaction accelerators have first input end and the first output end, first speed-up capacitor
With one end also the first output end of direct or indirect connection being connect after the first pressure limiting resistor coupled in parallel with the collector of the second triode,
The other end after parallel connection is also connected with first input end；And/or double capacitor positive feedback interaction accelerators have the second input terminal
And second output terminal, one connect with the collector of the first triode after second speed-up capacitor and the second pressure limiting resistor coupled in parallel
End also direct or indirect connection second output terminal, the other end after parallel connection are also connected with the second input terminal.
First triode is NPN type triode, and second triode is PNP type triode.
When double capacitor positive feedback interaction accelerators have first input end and the first output end, described first accelerates
The one end connecting after capacitor and the first pressure limiting resistor coupled in parallel with the collector of the second triode is indirectly connected with the first output end are as follows: institute
The one end connecting after the first speed-up capacitor and the first pressure limiting resistor coupled in parallel with the collector of the second triode is stated to connect by diode
Connect the first output end；When the double capacitor positive feedbacks interaction accelerators have the second input terminal and second output terminal, described the
The one end connecting after two speed-up capacitors and the second pressure limiting resistor coupled in parallel with the collector of the first triode is indirectly connected with the second output
End are as follows: the one end connecting after second speed-up capacitor and the second pressure limiting resistor coupled in parallel with the collector of the first triode passes through another
One diode connects second output terminal.
The capacitance value range of first speed-up capacitor and the second speed-up capacitor is 1pF-1nF.
First output end is for connecting driving circuit driving metal-oxide-semiconductor；And/or the second output terminal is for connecting
Driving circuit drives metal-oxide-semiconductor.
It is a kind of using double capacitors positive feedback described in one of claim 1 to 5 interaction accelerator delay controllably drive electricity
Road.
Including the first accelerator, the second accelerator, the first output circuit and the second output circuit, first accelerator and
Second accelerator is double capacitor positive feedback interaction accelerators and all has first input end, the first output end, the second input terminal
And second output terminal, the second output terminal of the first output end of first accelerator and second accelerator are all connected with described
The input terminal of first output circuit, first output of the output end of first output circuit as delay controllable drive circuitry
End, first input end of the first input end or the second input terminal of first accelerator as delay controllable drive circuitry；With/
Or, the first output end of the second output terminal of first accelerator and second accelerator is all connected with the second output electricity
The input terminal on road, second output terminal of the output end of second output circuit as delay controllable drive circuitry, described second
The second input terminal of the first input end of accelerator or the second input terminal as delay controllable drive circuitry.
A kind of multistage interacting accelerator using double capacitor positive feedbacks described in one of more than two claims 1 to 5 adds
Fast device.
Including the first accelerator, the second accelerator and third accelerator, first accelerator, the second accelerator and third
Accelerator is double capacitor positive feedback interaction accelerators and all has first input end and the first output end, first accelerator
Input terminal of the first input end as multi-stage accelerator, the first output end of first accelerator is separately connected described second
The first input end of the first input end of accelerator and the third accelerator, the first output end conduct of second accelerator
First output end of multi-stage accelerator, second output terminal of the first output end of the third accelerator as multi-stage accelerator；
First accelerator, the second accelerator and third accelerator constitute two-stage accelerator.
First output end of first accelerator connects the first input end of the second accelerator, institute by a time-delay structure
The first output end for stating the first accelerator connects the first input end of third accelerator, each time-delay structure by another time-delay structure
It include time delay resistance, delay capacitor and divider resistance, the time delay resistance and divider resistance are connected in series to form resistance string, and two
The time delay resistance that one end of resistance string passes through itself connects the first output end of the first accelerator, and the other end of a resistance string is logical
The divider resistance for crossing itself connects the first input end of the second accelerator, the partial pressure electricity that the other end of another resistance string passes through itself
The first input end of resistance connection third accelerator, the time delay resistance of each resistance string and the connecting node of divider resistance are also all connected with one
The other end of one end of a delay capacitor, the delay capacitor is grounded.
Technical effect of the invention is as follows:
The present invention relates to a kind of double capacitor positive feedback interaction accelerators, input terminal is connected to the output of electrifying startup circuit
End, in other words, for carrying out acceleration processing to the enabling signal of electrifying startup circuit output, which uses the accelerator
Two speed-up capacitors cooperate with the structure of two pressure limiting resistor coupled in parallel, again respectively is respectively set two biasing resistors and two three poles
Pipe is integrally formed double capacitor positive feedback interaction accelerators；The capacitance of the speed-up capacitor of use can preferably be limited to several
PF grades to nF grades several, while substantially reducing circuit area and cost and power consumption, can also further pass through cooperation delay
Structure (i.e. RC delay circuit) is to control the delayed of the accelerator.Double capacitor positive feedback interaction accelerators proposed by the present invention
In stable state, two triode is not turned on, that is, is in off position；When in its input terminal, (first input end is second defeated
Enter end) give a little electric current, that is, give the first biasing resistor or the second biasing resistor little by little electric current, it can so that first
Triode or the second triode ON, so that the second speed-up capacitor and the first speed-up capacitor (or the first speed-up capacitor and
Two speed-up capacitors) it starts to charge in succession, the second speed-up capacitor and the first speed-up capacitor (or the first speed-up capacitor and second accelerates electricity
Hold) the effect that is sequentially overlapped lead to a very big starting current, it is above-mentioned until two speed-up capacitors are each filled with charge
This Overlay is " positive feedback " or for " positive superposition ", this very big starting current can be used for circuit and power on to open
It is dynamic, and greatly reduce the circuit electrifying startup time, avoid prior art electrifying startup circuit start overlong time and
Start the uncontrollable problem of timing, realizes great start-up current electrifying startup.Further it is proposed that accelerator preferably can be with
For connecting driving circuit to drive metal-oxide-semiconductor.
The invention further relates to a kind of delay controllable drive circuitries, using above-mentioned double capacitor positive feedbacks interaction accelerator, originally
The enabling signal low-voltage that optimization may be implemented in its special circuit structure of the delay controllable drive circuitry of invention drags down effect, avoids
Driven metal-oxide-semiconductor or other devices are since there are enabling signal low voltage values caused by the parameters such as equivalent capacity in the prior art
It gets too close to therefore easily cause the failure of circuit electrifying startup or work with the threshold voltage of driven metal-oxide-semiconductor or other devices
The problems such as abnormal, further can also adjust delayed by cooperation time-delay structure (i.e. RC delay circuit).
The invention further relates to a kind of multi-stage accelerators, using more than two above-mentioned double capacitor positive feedbacks interaction accelerators
Cascade structure constitutes multi-stage accelerator of the invention, preferably comprises two-stage accelerator structure.The present invention can pass through a letter
The enabling signal that different delayed time is realized while high current starting can be thus achieved in single multistage (such as two-stage) accelerator structure, and
And preferably further delayed can be adjusted by cooperation time-delay structure (i.e. RC delay circuit).
Detailed description of the invention
Fig. 1 is a kind of preferred structure schematic diagram of the double capacitor positive feedback interaction accelerators of the present invention.
Fig. 2 is another preferred structure schematic diagram of the double capacitor positive feedback interaction accelerators of the present invention.
Fig. 3 is that the double capacitor positive feedback interaction accelerators of the present invention connect a kind of preferred structure that driving circuit drives metal-oxide-semiconductor
Schematic diagram.
Fig. 4 is a kind of preferred structure schematic diagram of present invention delay controllable drive circuitry.
Fig. 5 is a kind of preferred structure schematic diagram of multi-stage accelerator of the present invention.
Specific embodiment
The present invention will be described with reference to the accompanying drawing.
Fig. 1 is a kind of preferred structure schematic diagram of the double capacitor positive feedback interaction accelerators of the present invention, as shown in Figure 1, including
First speed-up capacitor C1, the second speed-up capacitor C2, the first pressure limiting resistance R1a, the second pressure limiting resistance R2a, the first biasing resistor R1b,
Two biasing resistor R2b, the first triode T1With the second triode T2, double capacitor positive feedbacks interaction acceleration utensil of the preferred structure
There is first input end in1, the first output end out1, the second input terminal in2With second output terminal out2, wherein the first speed-up capacitor
C1With the first pressure limiting resistance R1aOne end after parallel connection connects the second triode T simultaneously2Collector and the first output end out1,
First speed-up capacitor C1With the first pressure limiting resistance R1aThe other end after parallel connection connects first input end in simultaneously1, the first biased electrical
Hinder R1bOne end and the first triode T1Base stage, the first biasing resistor R1bThe other end and the first triode T1Emitter
It is grounded；Second speed-up capacitor C2With the second pressure limiting resistance R2aOne end after parallel connection connects the second input terminal in simultaneously2, second partially
Set resistance R2bOne end and the second triode T2Base stage, the second speed-up capacitor C2With the second pressure limiting resistance R2aIt is another after parallel connection
One end connects the first triode T simultaneously1Collector and second output terminal out2, the second biasing resistor R2bThe other end and
Two triode T2Emitter be all connected with power input Vcc.In the present embodiment, the first triode T1It is preferred that using is NPN
Type triode, the second triode T2Using is PNP type triode；First speed-up capacitor C1With the second speed-up capacitor C2Capacitor
Being worth range all can be 1pF-1nF.
Double capacitor positive feedbacks interaction accelerator in embodiment illustrated in fig. 1 has first input end in simultaneously1, first output
Hold out1, the second input terminal in2With second output terminal out2；Certainly, double capacitor positive feedback interaction accelerators can also only have one
A input terminal and an output end, for example only there is first input end in1With the first output end out1, the second speed-up capacitor at this time
C2With the second pressure limiting resistance R2aOne end after parallel connection only connects the second biasing resistor R simultaneously2bOne end and the second triode T2
Base stage, the second speed-up capacitor C2With the second pressure limiting resistance R2aThe other end after parallel connection only connects the first triode T1Current collection
Pole, structural schematic diagram are construed as the second input terminal in Fig. 12With second output terminal out2Remove；Similarly, when only having
There is the second input terminal in2With second output terminal out2When, the first speed-up capacitor C1With the first pressure limiting resistance R1aOne end after parallel connection is only
Connect the second triode T2Collector, the first speed-up capacitor C1With the first pressure limiting resistance R1aThe other end after parallel connection only connects simultaneously
Meet the first biasing resistor R1bOne end and the first triode T1Base stage, structural schematic diagram is construed as in Fig. 1
One input terminal in1With the first output end out1Remove.
In addition, for preferred structure shown in Fig. 1, the first speed-up capacitor C1With the first pressure limiting resistance R1aWith the two or three after parallel connection
Pole pipe T2Collector connection one end be to be directly connected to the first output end out1, the second speed-up capacitor C2With the second pressure limiting resistance
R2aAfter parallel connection with the first triode T1Collector connection one end be to be directly connected to second output terminal out2.Preferably, first
Speed-up capacitor C1With the first pressure limiting resistance R1aAfter parallel connection with the second triode T2Collector connection one end can also between in succession
Meet the first output end out1, the second speed-up capacitor C2With the second pressure limiting resistance R2aAfter parallel connection with the first triode T1Collector connect
The one end connect can also be indirectly connected with second output terminal out2, the double capacitor positive feedback interaction accelerators of the present invention as shown in Figure 2
Another preferred structure schematic diagram, as shown in Fig. 2, on the basis of including whole devices of accelerator as shown in Figure 1, the
One speed-up capacitor C1With the first pressure limiting resistance R1aAfter parallel connection with the second triode T2Collector connection one end pass through diode D1
Connect the first output end out1, the first speed-up capacitor C1With the first pressure limiting resistance R1aThe other end after parallel connection is also connected with the first input
Hold in1；Second speed-up capacitor C2With the second pressure limiting resistance R2aAfter parallel connection with the first triode T1Collector connection one end pass through
Another diode D2Connect second output terminal out2, the second speed-up capacitor C2With the second pressure limiting resistance R2aThe other end after parallel connection is also
Connect the second input terminal in2.Wherein, first input end in1Or the second input terminal in2It can be used for connecting a slight electric current
Input (such as one constant-current source of connection)；Diode D1And D2Play the role of protecting circuit for reverse protection diode.Similarly
In the present embodiment, the first triode T1Using is NPN type triode, the second triode T2Using is PNP type triode；
First speed-up capacitor C1With the second speed-up capacitor C2Capacitance value range all can be 1pF-1nF.Acceleration as depicted in figs. 1 and 2
Device, input terminal (i.e. first input end in1And/or the second input terminal in2) it is connected to the output end of electrifying startup circuit, namely
It is to say, for quickly being handled the enabling signal of electrifying startup circuit output, which is added the accelerator using two
Fast capacitor cooperates respectively arranged two biasing resistors and two triodes with the structure of two pressure limiting resistor coupled in parallel, again respectively,
The circuit structure that positive feedback interaction accelerates may be implemented in overall structure, avoids prior art electrifying startup circuit start time mistake
The long and starting uncontrollable problem of timing, when realizing great start-up current electrifying startup, and then greatly reducing electrifying startup
Between；Even if being simultaneously the speed-up capacitor C used using the capacitor of very little capacitance1And C2Capacitance can preferably be limited to it is several
A pF grades to nF grades a few, it can realize the high current electrifying startup effect of the accelerator, while substantially reduce circuit area and
Cost and power consumption, may further be by adjusting speed-up capacitor C1And C2Capacitance or pressure limiting resistance R1aAnd R2aResistance value
Control the delayed of the accelerator.
Preferably, accelerator as depicted in figs. 1 and 2 can connect driving circuit driving metal-oxide-semiconductor, and Fig. 3 is that the present invention is double
A kind of preferred structure schematic diagram of capacitor positive feedback interaction accelerator connection driving circuit driving metal-oxide-semiconductor, as shown in figure 3, double electricity
Hold the first output end out of positive feedback interaction accelerator1(via connection diode D1) connection one driving circuit after reconnect
Metal-oxide-semiconductor (or NMOS tube) is to drive the metal-oxide-semiconductor (or NMOS tube)；The second output terminal out of double capacitor positive feedback interaction accelerators2
(via connection diode D2) connect another driving circuit after reconnect another metal-oxide-semiconductor (or PMOS tube) to drive the metal-oxide-semiconductor
(or PMOS tube), it should be noted that be the first output end out for double capacitor positive feedback interaction accelerators shown in Fig. 21Directly
A driving circuit, second output terminal out are met in succession2It is directly connected to another driving circuit；Just for double capacitors shown in FIG. 1
Feeding back interaction accelerator is the first output end out1Via connection diode D1A driving circuit, second output terminal are reconnected afterwards
out2Via connection diode D2After reconnect another driving circuit.Wherein, driving circuit as shown in Figure 3 can be used and be pushed away
Draw output amplifier or power transformation driving circuit.The enabling signal of optimization may be implemented in its special circuit structure as shown in Figure 3
Rising edge is drawn high and failing edge drags down effect, driven metal-oxide-semiconductor can be effectively avoided or since there are equivalent capacitys etc.
Parameter (such as grid capacitance, in other words Gate Charge or other equivalent capacitys such as grid to capacitor C between substrategb, this
A little capacitors are " noises " that no one wants) caused by enabling signal failure therefore easily cause the failure of circuit electrifying startup or work
Make the problems such as abnormal, while realizing and powering on quick start without " noise " high current, therefore double capacitors proposed by the present invention just return
Defeated interactive accelerator can be effectively adapted to the driving of metal-oxide-semiconductor electric current.
The working principle of double capacitor positive feedback interaction accelerators of the present invention is described as follows:
Double capacitor positive feedback interaction accelerators proposed by the present invention as shown in Figure 1, Figure 2 and Figure 3, in stable state, by
In Vcc*(R1b/(R1a+R1b))<VbeOr Vcc*(R2b/(R2a+R2b))<Vbe(VbeThat is transistor base to emitting voltage across poles,
Refer to threshold voltage or cut-in voltage), two triode (i.e. the first triode T1With the second triode T2) be not turned on, i.e.,
It (can be by adjusting pressure limiting resistance R in off position1aAnd R2aResistance value by most of voltage to making thereon
Circuit is not turned in stable state, therefore R1aAnd R2aReferred to as pressure limiting resistance)；When in its input terminal (first input end in1Or second is defeated
Enter to hold in2) give the input of a little electric current (such as one constant-current source of connection), that is, give the first biasing resistor R1bOr second biasing
Resistance R2bLittle by little electric current, when meeting Vcc*(R1b/(R1a+R1b))>VbeOr Vcc*(R2b/(R2a+R2b))>VbeWhen, it can make
Obtain the first triode T1Or the second triode T2Conducting, so that the second speed-up capacitor C2With the first speed-up capacitor C1It opens in succession
Beginning charging (or the first speed-up capacitor C1With the second speed-up capacitor C2Start to charge in succession), the second speed-up capacitor C2Accelerate to first
Capacitor C1(or the first speed-up capacitor C1To the second speed-up capacitor C2) be sequentially overlapped effect (i.e. " positive feedback ") one can be caused
Very big starting current, until two speed-up capacitor (C1And C2) be each filled with charge until (i.e. waiting time, namely refer to
Electricity delay), i.e. speed-up capacitor (C1And C2) on voltage reach maximum value i.e. Vcc-Vbe-Vce(sat)(VbeI.e. transistor base is extremely sent out
Voltage across poles is penetrated, namely refers to threshold voltage or cut-in voltage；Vce(sat)I.e. transistor collector is electric to transmitting interpolar saturation
Pressure), this very big starting current is speed-up capacitor (C under normal conditions1And C2) on charge integral * β (β, that is, triode
Current amplification factor, usually hundred times), resistance (the first biasing resistor R at this time1bWith the second biasing resistor R2bAnd first limit
Piezoresistance R1aWith the second pressure limiting resistance R2a) on only a small amount of electric current, usually μ A grades, therefore almost without charge in resistance
On, whole charges are all in speed-up capacitor (C1And C2) on, therefore theoretically can produce unlimited high current, actually due to for example
The introducing of the series equivalent resistances such as circuit pin will not infinity (i.e. (Vcc-Vide)/C, VideFor residual capacitance voltage, C is charge
Transfer amount), but be enough to can be used for circuit electrifying startup, it realizes the controllable high current of total electrical charge and powers on quick start, and
And greatly reduce the circuit electrifying startup time.Result of practical application explanation, using accelerator proposed by the present invention, is established by cable thereon
6ns can be less than by opening the time, and the power-off turn-off time can be less than 5ns, far smaller than in the prior art common tens to up to a hundred
ns；And the above-mentioned time can be controlled by further cooperating time-delay structure (i.e. RC delay circuit) the powering on of the accelerator/
Power cut off delay.As speed-up capacitor C1And C2When charging complete, i.e. speed-up capacitor C1And C2It is each filled with charge, at this time the first biased electrical
Hinder R1bWith the second biasing resistor R2bOn electric current significantly fall after rise and be decreased to zero, i.e. the first biasing resistor R1bWith the second biased electrical
Hinder R2bOn partial pressure no longer meet Vcc*(R1b/(R1a+R1b))>VbeOr Vcc*(R2b/(R2a+R2b))>Vbe, so that the first triode
T1With the second triode T2It is no longer turned on, is in off state；But due to speed-up capacitor C1With biasing resistor R1bAnd accelerate
Capacitor C2With biasing resistor R2bThere may be discharge loops respectively, easily lead to its output end (the first output end out1With
Two output end out2) connection rear stage circuit (such as by driving circuit connect metal-oxide-semiconductor) unnormal unlocking, therefore, this
The accelerator that invention proposes is preferably introduced into protection diode (i.e. diode D1And D2) to stop current reflux, i.e., when the accelerator
(the first triode T when not working1With the second triode T2When being turned off), avoid the driven circuit of fault open rear stage.
The invention further relates to a kind of delay controllable drive circuitry using above-mentioned double capacitor positive feedbacks interaction accelerator, tools
For body, a delay can be integrally formed using any circuit topology for including above-mentioned double capacitor positive feedbacks interaction accelerator
Controllable drive circuitry, it can adjust delayed by the way that further cooperation time-delay structure (i.e. RC delay circuit) is rationally arranged.
Fig. 4 is a kind of preferred structure schematic diagram of delay controllable drive circuitry proposed by the present invention, as shown in figure 4, including
First accelerator, the second accelerator, the first output circuit and the second output circuit, the first accelerator and the second accelerator are double
Capacitor positive feedback interacts accelerator and all has first input end in1, the first output end out1, the second input terminal in2It is defeated with second
Outlet out2, the first output end out of the first accelerator1With the second output terminal out of the second accelerator2It is all connected with the first output
The output end of the input terminal of circuit, the first output circuit can be used for driving as the first output end of delay controllable drive circuitry
Such as the metal-oxide-semiconductor as illustrated in Fig. 4；The second output terminal out of first accelerator2With the first output end out of the second accelerator1
It is all connected with the input terminal of the second output circuit, second output of the output end of the second output circuit as delay controllable drive circuitry
End can be used for driving the metal-oxide-semiconductor for example as illustrated in Fig. 4；At this point, the first input end in of the first accelerator1Or second input
Hold in2(being not shown in Fig. 4) can be used as the first input end of delay controllable drive circuitry, the first input end of the second accelerator
in1Or the second input terminal in2(being not shown in Fig. 4) can be used as the second input terminal of delay controllable drive circuitry.Wherein, such as Fig. 4
Shown in the first output circuit and the second output circuit can use push-pull output amplifying circuit.Delay proposed by the present invention is controllable
Driving circuit adds on the basis of using double capacitor positive feedbacks interaction accelerators to realize fast powering-ups starting by using first
First output end of fast device and the second output terminal of the second accelerator are all connected with input terminal or the first acceleration of the first output circuit
First output end of the second output terminal of device and the second accelerator is all connected with the input terminal of the second output circuit, is each responsible for drawing
It is high/to drag down enabling signal, and the low-voltage of circuit start signal is dragged down into (such as being pulled low to 10v~-4v from 10v~0v), make
Low-voltage-the 4v of enabling signal at this time is obtained far from the threshold voltage of driven metal-oxide-semiconductor or other devices (such as 2v), optimization
Enabling signal low-voltage drag down effect, avoid driven metal-oxide-semiconductor in the prior art or other devices since there are equivalent electricity
Therefore enabling signal low voltage value caused by the parameters such as appearance and driven metal-oxide-semiconductor or the threshold voltage of other devices are got too close to
It easily causes the failure of circuit electrifying startup or works the problems such as abnormal, realize high current and power on quick start, and significantly
Reduce the circuit electrifying startup time, and preferably can be by further cooperating in time-delay structure (i.e. RC delay circuit) adjusting
Power off delay.
The invention further relates to a kind of multi-stage accelerator for interacting accelerators using more than two above-mentioned double capacitor positive feedbacks,
It specifically, can be using the circuit for any cascade system for including more than two above-mentioned double capacitor positive feedbacks interaction accelerators
Topology one multi-stage accelerator of overall structure, realizes producing and exporting for a variety of different timing delayed signals.
Fig. 5 is a kind of preferred structure schematic diagram of multi-stage accelerator proposed by the present invention, which is two-stage accelerator,
As shown in figure 5, including the first accelerator, the second accelerator and third accelerator and two time delay resistance R3aAnd R3b, two
Delay capacitor C3aAnd C3bWith two divider resistance R4aAnd R4b；First accelerator, the second accelerator and third accelerator are double
Capacitor positive feedback interacts accelerator and all has first input end in1With the first output end out1, the first input of the first accelerator
Hold in1Input terminal as two-stage accelerator；Time delay resistance R3a, delay capacitor C3aWith divider resistance R4aConstitute a time-delay structure
(can be described as the first time-delay structure, alternatively referred to as the first RC delay circuit), time delay resistance R3b, delay capacitor C3bAnd divider resistance
R4bIt constitutes another time-delay structure (can be described as the second time-delay structure, alternatively referred to as the 2nd RC delay circuit), the of the first accelerator
One output end out1The first input end in of the second accelerator is connected by the first time-delay structure1, the first output of the first accelerator
Hold out1The first input end in of third accelerator is also connected by the second time-delay structure1, specifically, the first of the first accelerator
Output end out1Connect two resistance strings simultaneously, each resistance string include a time delay resistance being sequentially connected in series respectively and
One divider resistance, i.e. the first output end out of the first accelerator1Connection one simultaneously includes time delay resistance R3aWith divider resistance R4a
Resistance string and including a time delay resistance R3bWith divider resistance R4bResistance string, the other end difference of latter two right resistance string
Connect the first input end in of the second accelerator1With the first input end in of third accelerator1, time delay resistance R3aAnd divider resistance
R4aConnecting node be also connected with delay capacitor C3aOne end, time delay resistance R3bWith divider resistance R4bConnecting node be also connected with and prolong
When capacitor C3bOne end, delay capacitor C3aThe other end and delay capacitor C3bThe other end be grounded；The first of second accelerator
Output end out1As the first output end of two-stage accelerator, the first output end out of third accelerator1As two-stage accelerator
Second output terminal.Two-stage accelerator proposed by the present invention passes through divider resistance (R4aAnd R4b) respectively with rear stage accelerator
Respective biasing resistor R in (the second accelerator and third accelerator i.e. in the present embodiment)1bIt is connected after forming output end partial pressure
The structure of rear stage input terminal, to guarantee the reliability of two-stage accelerator；It can also be by cooperation power transformation device for example in full-bridge
Realize that successively unlatching-shutdown or shutdown-are opened for such as the first accelerator, the second accelerator and third accelerator under the control of transformer
It opens, while for each accelerator by adjusting two delay capacitor C in the two-stage accelerator3aAnd C3bCapacitance or two
A time delay resistance R3aAnd R3bResistance value adjusting delayed (i.e. RC delay namely waiting time) so that it respectively has not
Same power supply electrifying timing, and then realize different delayed signals, it ensure that electronic equipment or electronic system are normal, correct
Starting and work.
It should be pointed out that specific embodiment described above can make those skilled in the art that the present invention be more fully understood
It creates, but do not limit the invention in any way is created.Therefore, although this specification creates the present invention referring to drawings and examples
It makes and has been carried out detailed description, it will be understood by those skilled in the art, however, that still can modify to the invention
Or equivalent replacement, in short, the technical solution and its improvement of all spirit and scope for not departing from the invention, should all contain
It covers in the protection scope of the invention patent.
Claims (10)
1. a kind of double capacitor positive feedback interaction accelerators, carry out at acceleration for the enabling signal to electrifying startup circuit output
Reason, which is characterized in that partially including the first speed-up capacitor, the second speed-up capacitor, the first pressure limiting resistance, the second pressure limiting resistance, first
Set resistance, the second biasing resistor, the first triode and the second triode, first speed-up capacitor and the first pressure limiting resistor coupled in parallel
One end afterwards connects the collector of second triode, and the other end after parallel connection connects the one of first biasing resistor simultaneously
The emitter of the base stage of end and first triode, the other end of first biasing resistor and first triode is equal
Ground connection；One end after second speed-up capacitor and the second pressure limiting resistor coupled in parallel connects one end of second biasing resistor simultaneously
And the base stage of second triode, the other end after parallel connection connect the collector of first triode, described second partially
The emitter of the other end and second triode of setting resistance is all connected with power input；
The double capacitor positive feedbacks interaction accelerator has first input end and the first output end, first speed-up capacitor and the
The one end being connect after one pressure limiting resistor coupled in parallel with the collector of the second triode also the first output end of direct or indirect connection, it is in parallel
The other end afterwards is also connected with first input end；And/or the double capacitor positive feedbacks interaction accelerator has the second input terminal and the
The one end connecting after two output ends, second speed-up capacitor and the second pressure limiting resistor coupled in parallel with the collector of the first triode is also
Direct or indirect connection second output terminal, the other end after parallel connection are also connected with the second input terminal.
2. double capacitor positive feedbacks interaction accelerator according to claim 1, which is characterized in that first triode is
NPN type triode, second triode are PNP type triode.
3. double capacitor positive feedback interaction accelerators according to claim 2, which is characterized in that when double capacitor positive feedbacks
When interaction accelerator has first input end and the first output end, after first speed-up capacitor and the first pressure limiting resistor coupled in parallel with
One end of the collector connection of second triode is indirectly connected with the first output end are as follows: first speed-up capacitor and the first pressure limiting electricity
The one end connecting after resistance is in parallel with the collector of the second triode connects the first output end by diode；When double capacitors just
When feeding back interaction accelerator has the second input terminal and second output terminal, second speed-up capacitor and the second pressure limiting resistor coupled in parallel
The one end connecting afterwards with the collector of the first triode is indirectly connected with second output terminal are as follows: second speed-up capacitor and the second limit
The one end connecting after piezoresistance is in parallel with the collector of the first triode connects second output terminal by another diode.
4. according to claim 1 to the interaction accelerator of double capacitors positive feedback described in one of 3, which is characterized in that described first adds
Fast capacitor and the capacitance value range of the second speed-up capacitor are 1pF-1nF.
5. according to claim 1 to the interaction accelerator of double capacitors positive feedback described in one of 3, which is characterized in that described first is defeated
Outlet is for connecting driving circuit driving metal-oxide-semiconductor；And/or the second output terminal is for connecting driving circuit driving metal-oxide-semiconductor.
6. a kind of delay controllable drive circuitry using the interaction accelerator of double capacitors positive feedback described in one of claim 1 to 5.
7. delay controllable drive circuitry according to claim 6, which is characterized in that accelerate including the first accelerator, second
Device, the first output circuit and the second output circuit, first accelerator and the second accelerator are double capacitor positive feedback interactions
Accelerator and first input end, the first output end, the second input terminal and second output terminal are all had, the of first accelerator
The second output terminal of one output end and second accelerator is all connected with the input terminal of first output circuit, and described first is defeated
First output end of the output end of circuit as delay controllable drive circuitry out, the first input end of first accelerator or the
First input end of two input terminals as delay controllable drive circuitry；And/or second output terminal and the institute of first accelerator
The first output end for stating the second accelerator is all connected with the input terminal of second output circuit, the output of second output circuit
Hold the second output terminal as delay controllable drive circuitry, the first input end of second accelerator or the second input terminal conduct
Second input terminal of delay controllable drive circuitry.
8. a kind of multistage accelerating using double capacitor positive feedbacks interaction accelerator described in one of more than two claims 1 to 5
Device.
9. multi-stage accelerator according to claim 8, which is characterized in that including the first accelerator, the second accelerator and
Three accelerators, first accelerator, the second accelerator and third accelerator are double capacitor positive feedbacks interaction accelerators and
With first input end and the first output end, input terminal of the first input end of first accelerator as multi-stage accelerator,
First output end of first accelerator is separately connected the first input end and the third accelerator of second accelerator
First input end, first output end of the first output end of second accelerator as multi-stage accelerator, the third adds
Second output terminal of first output end of fast device as multi-stage accelerator；First accelerator, the second accelerator and third add
Fast device constitutes two-stage accelerator.
10. multi-stage accelerator according to claim 9, which is characterized in that the first output end of first accelerator is logical
The first input end that a time-delay structure connects the second accelerator is crossed, the first output end of first accelerator passes through another delay
Structure connects the first input end of third accelerator, and each time-delay structure includes time delay resistance, delay capacitor and divider resistance, institute
It states time delay resistance and divider resistance is connected in series to form resistance string, one end of two resistance strings passes through the time delay resistance connection of itself
The other end of first output end of the first accelerator, a resistance string connects the first of the second accelerator by the divider resistance of itself
Input terminal, the other end of another resistance string connect the first input end of third accelerator, each resistance by the divider resistance of itself
The time delay resistance of string and the connecting node of divider resistance are also all connected with one end of a delay capacitor, the delay capacitor it is another
End is grounded.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586652.7A CN107645290B (en) | 2016-07-22 | 2016-07-22 | A kind of double capacitor positive feedbacks interaction accelerator, driving circuit and multi-stage accelerator |
| PCT/CN2017/093947 WO2018014877A1 (en) | 2016-07-22 | 2017-07-21 | Dual-capacitor positive feedback interaction speed-up device, driving circuit, and multistage speed-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586652.7A CN107645290B (en) | 2016-07-22 | 2016-07-22 | A kind of double capacitor positive feedbacks interaction accelerator, driving circuit and multi-stage accelerator |
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| CN107645290A CN107645290A (en) | 2018-01-30 |
| CN107645290B true CN107645290B (en) | 2019-04-26 |
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| CN201610586652.7A Active CN107645290B (en) | 2016-07-22 | 2016-07-22 | A kind of double capacitor positive feedbacks interaction accelerator, driving circuit and multi-stage accelerator |
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| Country | Link |
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| CN (1) | CN107645290B (en) |
| WO (1) | WO2018014877A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109560084A (en) * | 2018-10-16 | 2019-04-02 | 天津大学 | Flexible Schmidt circuit based on flexible substrate |
| CN113708749B (en) * | 2021-09-30 | 2023-08-29 | 深圳市华浩德电子有限公司 | GaN compatible drive circuit |
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|---|---|---|---|---|
| US5382840A (en) * | 1991-09-30 | 1995-01-17 | Siemens Aktiengesellschaft | Analog delay circuit configuration |
| CN203840300U (en) * | 2014-03-14 | 2014-09-17 | 瑞斯康达科技发展股份有限公司 | An equipment power-on and power-off electrical control circuit |
| CN203984377U (en) * | 2014-05-27 | 2014-12-03 | 广东金莱特电器股份有限公司 | One is with soft start and turn-off switching circuit fast |
| CN105577154A (en) * | 2014-10-14 | 2016-05-11 | 北京谊安医疗系统股份有限公司 | Protection circuit of capacitive load of power MOSFET of anaesthesia machine |
| CN205829596U (en) * | 2016-07-22 | 2016-12-21 | 得能创科有限公司 | A kind of double mutual accelerator of electric capacity positive feedback, drive circuit and multi-stage accelerator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855625A (en) * | 1987-11-09 | 1989-08-08 | Harris Corp. | Operational amplifier having low DC current input circuit |
| CN2165604Y (en) * | 1993-08-26 | 1994-05-18 | 梅萱 | Electronic transformer for neon lamp |
| US7049858B2 (en) * | 2003-09-18 | 2006-05-23 | Micrel, Inc. | Reducing transient current caused by capacitance during high speed switching |
| CN201928250U (en) * | 2010-12-20 | 2011-08-10 | 惠州三华工业有限公司 | Power-up time delay circuit |
-
2016
- 2016-07-22 CN CN201610586652.7A patent/CN107645290B/en active Active
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2017
- 2017-07-21 WO PCT/CN2017/093947 patent/WO2018014877A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382840A (en) * | 1991-09-30 | 1995-01-17 | Siemens Aktiengesellschaft | Analog delay circuit configuration |
| CN203840300U (en) * | 2014-03-14 | 2014-09-17 | 瑞斯康达科技发展股份有限公司 | An equipment power-on and power-off electrical control circuit |
| CN203984377U (en) * | 2014-05-27 | 2014-12-03 | 广东金莱特电器股份有限公司 | One is with soft start and turn-off switching circuit fast |
| CN105577154A (en) * | 2014-10-14 | 2016-05-11 | 北京谊安医疗系统股份有限公司 | Protection circuit of capacitive load of power MOSFET of anaesthesia machine |
| CN205829596U (en) * | 2016-07-22 | 2016-12-21 | 得能创科有限公司 | A kind of double mutual accelerator of electric capacity positive feedback, drive circuit and multi-stage accelerator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018014877A1 (en) | 2018-01-25 |
| CN107645290A (en) | 2018-01-30 |
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