CN106787858A - A kind of feed forward type limits the single phase bridge type rectifier circu of input current envelope - Google Patents
A kind of feed forward type limits the single phase bridge type rectifier circu of input current envelope Download PDFInfo
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- CN106787858A CN106787858A CN201611127795.8A CN201611127795A CN106787858A CN 106787858 A CN106787858 A CN 106787858A CN 201611127795 A CN201611127795 A CN 201611127795A CN 106787858 A CN106787858 A CN 106787858A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/346—Passive non-dissipative snubbers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
A kind of feed forward type limits the single phase bridge type rectifier circu of input current envelope, including positive-negative-positive BJT pipes Q1, positive-negative-positive BJT pipes Q2, input capacitance C1, output capacitance C2, diode D1, diode D2 and n alternating voltage control DC current source VCCS1 to VCCSn, n is the integer more than or equal to 1, alternating voltage controls DC current source VCCSj (value of j is 1 to n) that the envelope iac_en of input current iac is limited in the input voltage range for allowing, i.e. the increment of the envelope peak iac_enp of input current iac is less than the increment of the virtual value Vac of input voltage vac, also the increment of the envelope peak iac_enp including input current iac is negative.The present invention realizes effectively suppressing in wide input voltage range the envelope increment of input current by the way of input voltage feed forward, lifts the safety and reliability of single phase bridge type rectifier circu.
Description
Technical field
The present invention relates to rectification (AC-DC) circuit, exchange input, the transformation of electrical energy occasion of direct current output are applied to, such as：It is micro-
Energy collecting system, grid-connected power generation system, battery charging system, segmentation access type DC load system etc., especially one
Plant the single phase bridge type rectifier circu with input current envelope limitation function.
Background technology
Single-phase bridge rectification (AC-DC) circuit is a kind of circuit that AC energy can be converted into direct current energy, using ten
Divide extensive.But, there is quite a few not possess input current envelope in single phase bridge type rectifier circu common at present and limit
Function.(see Fig. 1) by taking a common single phase bridge type rectifier circu as an example, the single phase bridge type rectifier circu is managed by positive-negative-positive BJT
Q1, positive-negative-positive BJT pipes Q2, input capacitance C1, output capacitance C2, diode D1, diode D2 and resistance R1 composition, positive-negative-positive BJT
The emitter stage of pipe Q1 is connected with one end of the anode, the negative electrode of diode D1 and electric capacity C1 of alternating-current voltage source vac simultaneously, PNP
The base stage of type BJT pipes Q1 is connected with the base stage of positive-negative-positive BJT pipes Q2 and one end of resistance R1 simultaneously, the current collection of positive-negative-positive BJT pipes Q1
One end of pole colelctor electrode, one end of electric capacity C2 and load Z1 simultaneously with positive-negative-positive BJT pipes Q2 is connected, the other end of electric capacity C2
The anode with the other end, the anode of diode D1, the other end of resistance R1 and the diode D2 that load Z1 is connected simultaneously, two poles
The negative electrode of pipe D2 emitter stage phase simultaneously with the negative terminal, the other end of electric capacity C1 and positive-negative-positive BJT pipes Q2 of alternating-current voltage source vac
Even.
If C1 is sufficiently small and DC current gain β 1 of Q1 is equal to the DC current gain β 2 of Q2, and ignores Q1's and Q2
Emitter stage-base stage conduction voltage drop, the envelope iac_en of input current iac meetsAssuming that handing over
The scope Vac_min to Vac_max of the voltage effective value Vac of stream voltage source vac is wide scope, then corresponding input current
The envelope peak iac_enp of iac also will be wide scope change.In the case of Vac=Vac_min, the bag of input current iac
Network peak valueIn the case of Vac=Vac_max, the envelope peak of input current iacAs can be seen here, when the voltage effective value Vac of alternating-current voltage source vac becomes from Vac_min
Change to Vac_max, the envelope peak iac_enp of input current iac cannot effectively suppress.That is the electricity of alternating-current voltage source vac
It is pressed with that valid value Vac is bigger, the envelope peak iac_enp also bigger (see Fig. 2) of input current iac.To wide input voltage range
For rectification circuit, the deficiency that the envelope peak iac_enp of this input current iac cannot effectively suppress will threaten whole electricity
The reliability and security on road.
The content of the invention
In order to the envelope peak iac_enp for overcoming input current iac in existing single phase bridge type rectifier circu cannot be effective
The deficiency of suppression, the present invention provides a kind of effective envelope peak iac_enp, feedforward of simple structure for suppressing input current iac
Formula limits the single phase bridge type rectifier circu of input current envelope.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of feed forward type limits the single phase bridge type rectifier circu of input current envelope, including positive-negative-positive BJT pipes Q1, positive-negative-positive
BJT pipes Q2, input capacitance C1, output capacitance C2, diode D1, diode D2 and n alternating voltage control DC current source
VCCS1 to VCCSn, n are the integer more than or equal to 1, and the emitter stage of positive-negative-positive BJT pipes Q1 is while with alternating-current voltage source vac just
The input j1a of end, the negative electrode of diode D1, one end of electric capacity C1 and alternating voltage control DC current source VCCSj is connected,
The value of j is 1 to n, and the base stage of positive-negative-positive BJT pipes Q1 controls direct current with the base stage and alternating voltage of positive-negative-positive BJT pipes Q2 simultaneously
The output end j2a of stream source VCCSj is connected, the colelctor electrode of positive-negative-positive BJT pipes Q1 colelctor electrode, electric capacity simultaneously with positive-negative-positive BJT pipes Q2
One end of C2 and one end of load Z1 are connected, and the other end of electric capacity C2 is while the sun of the other end, diode D1 with load Z1
The output end j2b of pole, the anode of diode D2 and alternating voltage control DC current source VCCSj is connected, the moon of diode D2
Pole is while negative terminal, the other end of electric capacity C1, the emitter stage of positive-negative-positive BJT pipes Q2 and alternating current with alternating-current voltage source vac are voltage-controlled
The input j1b of DC current source VCCSj processed is connected；
The input voltage model that the alternating voltage control DC current source VCCSj is allowed in the single phase bridge type rectifier circu
The envelope iac_en of interior restriction input current iac is enclosed, i.e., the increment of the envelope peak iac_enp of input current iac is less than input
The increment of the virtual value Vac of voltage vac, the also increment of the envelope peak iac_enp including input current iac are negative；Assuming that
Electric capacity C1 is sufficiently small and DC current gain β 1 of positive-negative-positive BJT pipes Q1 is equal to the DC current gain β 2 of positive-negative-positive BJT pipes Q2,
ThenFj (uj) is to flow into alternating voltage control DC current source VCCSj output ends j2a
Electric current, uj is that alternating voltage controls DC current source VCCSj inputs j1a defeated to alternating voltage control DC current source VCCSj
Enter to hold the voltage of j1b.
Further, the alternating voltage control DC current source VCCSj meets：
Ujp is the peak value of uj.WhenWhen,
Coefficient Aj, Bj, Cj are all higher than 0.Work as Aj<When the increment of Bj and Vac is more than zero, uj=vac is taken, the peak value increment of fj (uj) is negative
Number.
A kind of preferred scheme on alternating voltage control DC current source VCCSj, the alternating voltage controls direct current
Stream source VCCSj includes diode Dja1, diode Dja2, diode Dja3, resistance Rja1, resistance Rja2, resistance Rja3, resistance
Rja4, voltage-stabiliser tube Zja1, electric capacity Cja1, electric capacity Cja2, NPN type BJT pipes Qja1 and NPN type BJT pipe Qja2, diode Dja1's
Anode constitutes the input j1a of alternating voltage control DC current source VCCSj, and the anode composition alternating current of diode Dja2 is voltage-controlled
The negative electrode of the input j1b of DC current source VCCSj processed, diode Dja1 negative electrode, electric capacity Cja1 simultaneously with diode Dja2
One end of one end, one end of resistance Rja1 and resistance Rja3 be connected, the other end of resistance Rja1 and the moon of voltage-stabiliser tube Zja1
Extremely be connected, the anode of voltage-stabiliser tube Zja1 is connected with the anode of diode Dja3, the negative electrode of diode Dja3 and meanwhile with electric capacity Cja2
One end and resistance Rja2 one end be connected, the other end of resistance Rja2 is connected with the base stage of NPN type BJT pipes Qja1, NPN type
The colelctor electrode of BJT pipes Qja1 is connected with the other end of resistance Rja3 and the base stage of NPN type BJT pipes Qja2 simultaneously, NPN type BJT
The colelctor electrode of pipe Qja2 constitutes the output end j2a of alternating voltage control DC current source VCCSj, the transmitting of NPN type BJT pipes Qja2
Pole is connected with one end of resistance Rja4, the other end of resistance Rja4 and the emitter stage of NPN type BJT pipes Qja1, electric capacity Cja2 it is another
The other end of one end and electric capacity Cja1 collectively forms the output end j2b of alternating voltage control DC current source VCCSj.
Ignore the forward conduction voltage drop of Dja1, Dja2 and Dja3, ignore the base-emitter conducting pressure of Qja1 and Qja2
Drop, it is assumed that Vzja1 is the reverse-conducting pressure drop of voltage-stabiliser tube Zja1, β ja1 are the DC current gain of Qja1, when Cja1 is sufficiently small,
Cja2 is sufficiently large, Qja2 DC current gain β ja2 also sufficiently large, uj=vac,When, derive：
If
ThenTake coefficient
When the increment of β ja1Rja3 ＞ Rja2 and Vac is more than zero, uj=vac is taken, the peak value increment of fj (uj) is negative
Number.
Further, the alternating voltage control DC current source VCCSj also includes resistance Rja5, resistance Rja6, resistance
Rja7, resistance Rja8, resistance Rja9, NPN type BJT pipes Qja3 and NPN type BJT pipe Qja4, one end of resistance Rja5 and NPN type
The emitter stage of BJT pipes Qja2 is connected, the other end of resistance Rja5 one end simultaneously with resistance Rja6 and NPN type BJT pipes Qja3
Base stage be connected, the colelctor electrode of NPN type BJT pipes Qja3 one end simultaneously with resistance Rja7 and the base stage of NPN type BJT pipes Qja4
It is connected, the colelctor electrode of NPN type BJT pipes Qja4 is connected with one end of resistance Rja8, the other end and the NPN type BJT of resistance Rja8 are managed
The colelctor electrode of Qja2 is connected, and the emitter stage of NPN type BJT pipes Qja4 is connected with one end of resistance Rja9, the other end of resistance Rja9
While the emitter stage, the emitter stage of NPN type BJT pipes Qja3 and the other end of resistance Rja6 with NPN type BJT pipes Qja1 are connected,
The other end of resistance Rja7 is connected with the negative electrode of diode Dja3.The program can improve the PF values of rectification circuit, THD values and defeated
Enter current harmonics amount, shorten the Dead Time in input current iac waveforms.
Ignore the emitter stage-base-on voltage of Q1 and Q2, ignore the colelctor electrode-emitter stage conduction voltage drop of Qja4, exchange
Voltage controls voltage uj2 ≈ | vac | of DC current source VCCSj output ends j2a to output end j2b, it is assumed that Rja9<<Rja8, pushes away
Lead：
WhenAndWhen,
Another preferred scheme on alternating voltage control DC current source VCCSj, the alternating voltage controls direct current
Current source VCCSj include many voltage-multiplying circuits of four port, diode Djb4, resistance Rjb4, resistance Rjb5, resistance Rjb6,
Resistance Rjb7 and positive-negative-positive BJT pipes Qjb1, the port jc of many voltage-multiplying circuits constitutes the alternating voltage control DC current source
The input j1a of VCCSj, the port jd of many voltage-multiplying circuits constitutes the alternating voltage control DC current source VCCSj's
Input j1b, the port je of many voltage-multiplying circuits are connected with the anode of diode Djb4, the port jf of many voltage-multiplying circuits
The defeated of the alternating voltage control DC current source VCCSj is collectively formed with one end of resistance Rjb5 and one end of resistance Rjb7
Go out and hold j2b, the negative electrode of diode Djb4 is connected with one end of resistance Rjb4, the other end of resistance Rjb4 is simultaneously with resistance Rjb5's
The base stage of the other end and positive-negative-positive BJT pipes Qjb1 is connected, the emitter stage of positive-negative-positive BJT pipes Qjb1 and one end phase of resistance Rjb6
Even, the other end of resistance Rjb6 constitutes the output end j2a of the alternating voltage control DC current source VCCSj, positive-negative-positive BJT pipes
The colelctor electrode of Qjb1 is connected with the other end of resistance Rjb7.
The voltage of many voltage-multiplying circuit port je to many voltage-multiplying circuit port jf and many voltage-multiplying circuit ports
Jc is linear to the voltage peak of many voltage-multiplying circuit port jd, proportionality coefficient k>1.
A kind of preferred scheme on many voltage-multiplying circuits, many voltage-multiplying circuits are voltage triplers, proportionality coefficient k ≈ 3,
Many voltage-multiplying circuits by electric capacity Cjb1, electric capacity Cjb2, electric capacity Cjb3, diode Djb1, diode Djb2, diode Djb3,
Voltage-stabiliser tube Zjb1, voltage-stabiliser tube Zjb2, voltage-stabiliser tube Zjb3, resistance Rjb1, resistance Rjb2, resistance Rjb3 compositions, the one of electric capacity Cjb1
The other end of the port jc of end composition many voltage-multiplying circuits, electric capacity Cjb1 anode and diode simultaneously with voltage-stabiliser tube Zjb1
The anode of Djb2 is connected, and the negative electrode of voltage-stabiliser tube Zjb1 is connected with one end of resistance Rjb1, the other end and diode of resistance Rjb1
The negative electrode of Djb1 is connected, and the anode of diode Djb1 collectively forms the port of many voltage-multiplying circuits with one end of electric capacity Cjb2
The negative electrode of jd, diode Djb2 is connected with one end of resistance Rjb2, the other end of resistance Rjb2 and the negative electrode phase of voltage-stabiliser tube Zjb2
Even, the anode of voltage-stabiliser tube Zjb2 is connected with the anode of diode Djb3 and the other end of electric capacity Cjb2 simultaneously, diode Djb3
Negative electrode be connected with one end of resistance Rjb3, the other end of resistance Rjb3 is connected with the negative electrode of voltage-stabiliser tube Zjb3, voltage-stabiliser tube Zjb3
One end of anode and electric capacity Cjb3 collectively form the port je of many voltage-multiplying circuits, the other end of electric capacity Cjb3 constitutes described
The port jf of many voltage-multiplying circuits.
Vzjb1 is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb1, and Vzjb2 is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb2, Vzjb3
It is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb3, uj2 is that the alternating voltage controls DC current source VCCSj port j2a to described
The voltage of alternating voltage control DC current source VCCSj port j2b, β jb1 are the DC current gains of positive-negative-positive BJT pipes Qjb1.
Ignore the forward conduction voltage drop of Djb1, Djb2, Djb3 and Djb4, ignore the emitter stage-base stage conduction voltage drop of Qjb1, Q1 and Q2,
When Vzjb1=Vzjb2=Vzjb3,Rjb7<<Rjb6, β jb1 are sufficiently large, Rjb6 β jb1>>
(Rjb4//Rjb5) and when Cjb1, Cjb2 and Cjb3 are sufficiently large, because of uj=| vac |, uj2 ≈ | vac |, derive：
WhenWhen,
Take coefficient
Work as Rjb4<When the increment of 2Rjb5 and Vac is more than zero, the peak of uj=| vac | and uj2 ≈ | vac |, fj (uj) is taken
Value increment is negative.
Further, to improve the PF values of circuit, THD values and Harmonics of Input amount, in shortening input current iac waveforms
Dead Time, alternating voltage control DC current source VCCSj also include resistance Rjb8, resistance Rjb9, resistance Rjb10,
Resistance Rjb11, resistance Rjb12, one end of NPN type BJT pipes Qjb2 and NPN type BJT pipe Qjb3, resistance Rjb8 and positive-negative-positive BJT are managed
The colelctor electrode of Qjb1 is connected, the other end of resistance Rjb8 one end simultaneously with resistance Rjb9 and the base stage of NPN type BJT pipes Qjb2
It is connected, the colelctor electrode of NPN type BJT pipes Qjb2 is connected with one end of resistance Qjb10 and the base stage of NPN type BJT pipes Qjb3 simultaneously,
The colelctor electrode of NPN type BJT pipes Qjb3 is connected with one end of resistance Rjb11, and the other end of resistance Rjb11 is another with resistance Rjb6
End is connected, and the emitter stage of NPN type BJT pipes Qjb3 is connected with one end of resistance Rjb12, the other end and resistance of resistance Rjb12
The other end of one end, the emitter stage of NPN type BJT pipes Qjb2 and resistance Rjb9 of Rjb7 is connected, the other end of resistance Rjb10 with
The anode of diode Djb4 is connected.
Ignore the colelctor electrode-emitter stage conduction voltage drop of Qjb3, it is assumed that Rjb12<<Rjb11, if many voltage-multiplying circuits are three
Voltage-multiplying circuit, can derive：
WhenAndWhen,
Technology design of the invention is：A kind of alternating voltage control DC current source VCCSj is constructed, replaces existing single-phase bridge
Resistance R1 in formula rectification circuit, realizes effectively suppressing defeated in wide input voltage range by the way of input voltage feed forward
Enter the envelope increment iac_enp of electric current iac, lift the safety and reliability of single phase bridge type rectifier circu.
Beneficial effects of the present invention are mainly manifested in：Feed forward type limits the single phase bridge type rectifier circu tool of input current envelope
There is the ability for limiting input current maximum, the application scenario of wide input voltage range is especially suitable for, as its core component
Alternating voltage control DC current source simple structure, scalability are strong.
Brief description of the drawings
Fig. 1 is a kind of circuit diagram of existing single phase bridge type rectifier circu.
Fig. 2 is the simulation waveform of single phase bridge type rectifier circu shown in Fig. 1.
Fig. 3 is circuit diagram of the invention.
Fig. 4 is circuit diagram of the embodiment of the present invention 1 on alternating voltage control DC current source VCCSj.
Fig. 5 is the simulation waveform of the embodiment of the present invention 1.
Fig. 6 is circuit diagram of the embodiment of the present invention 2 on alternating voltage control DC current source VCCSj.
Fig. 7 is the simulation waveform of the embodiment of the present invention 2.
Fig. 8 is circuit diagram of the embodiment of the present invention 3 on alternating voltage control DC current source VCCSj.
Fig. 9 is the simulation waveform of the embodiment of the present invention 3.
Figure 10 is circuit diagram of the embodiment of the present invention 4 on alternating voltage control DC current source VCCSj.
Figure 11 is the simulation waveform of the embodiment of the present invention 4.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of 3~Figure 11 of reference picture, feed forward type limits the single phase bridge type rectifier circu of input current envelope, including positive-negative-positive
BJT pipes Q1, positive-negative-positive BJT pipes Q2, input capacitance C1, output capacitance C2, diode D1, diode D2 and n alternating voltage control
DC current source VCCS1 to VCCSn, n are the integer more than or equal to 1, and the emitter stage of positive-negative-positive BJT pipes Q1 is while and alternating voltage
The input of the anode of source vac, the negative electrode of diode D1, one end of electric capacity C1 and alternating voltage control DC current source VCCSj
End j1a is connected, and the value of j is 1 to n, the base stage of positive-negative-positive BJT pipes Q1 base stage and alternating voltage simultaneously with positive-negative-positive BJT pipes Q2
The output end j2a of control DC current source VCCSj is connected, the colelctor electrode of positive-negative-positive BJT pipes Q1 collection simultaneously with positive-negative-positive BJT pipes Q2
One end of electrode, one end of electric capacity C2 and load Z1 is connected, the other end of electric capacity C2 simultaneously with the other end, two poles of load Z1
The output end j2b of the anode, the anode of diode D2 and alternating voltage control DC current source VCCSj of pipe D1 is connected, two poles
The negative electrode of pipe D2 negative terminal simultaneously with alternating-current voltage source vac, the other end of electric capacity C1, the emitter stage of positive-negative-positive BJT pipes Q2 and friendship
The input j1b of stream voltage control DC current source VCCSj is connected；
The input voltage model that the alternating voltage control DC current source VCCSj is allowed in the single phase bridge type rectifier circu
The envelope iac_en of interior restriction input current iac is enclosed, i.e., the increment of the envelope peak iac_enp of input current iac is less than input
The increment of the virtual value Vac of voltage vac, the also increment of the envelope peak iac_enp including input current iac are negative；Assuming that
Electric capacity C1 is sufficiently small and DC current gain β 1 of positive-negative-positive BJT pipes Q1 is equal to the DC current gain β 2 of positive-negative-positive BJT pipes Q2,
ThenFj (uj) is to flow into alternating voltage control DC current source VCCSj output ends j2a
Electric current, uj is that alternating voltage controls DC current source VCCSj inputs j1a defeated to alternating voltage control DC current source VCCSj
Enter to hold the voltage of j1b.
Further, alternating voltage control DC current source VCCSj meets： Ujp is
The peak value of uj.WhenWhen,Coefficient Aj,
Bj, Cj are all higher than 0.Work as Aj<When the increment of Bj and Vac is more than zero, uj=vac is taken, the peak value increment of fj (uj) is negative.
Embodiment 1：Reference picture 3 and Fig. 4, the alternating voltage control DC current source VCCSj of the embodiment of the present invention 1 include two
Pole pipe Dja1, diode Dja2, diode Dja3, resistance Rja1, resistance Rja2, resistance Rja3, resistance Rja4, voltage-stabiliser tube
Zja1, electric capacity Cja1, electric capacity Cja2, the anode of NPN type BJT pipes Qja1 and NPN type BJT pipe Qja2, diode Dja1 are constituted and handed over
The anode of the input j1a of stream voltage control DC current source VCCSj, diode Dja2 constitutes alternating voltage control DC current
The negative electrode of the input j1b of source VCCSj, diode Dja1 negative electrode, one end of electric capacity Cja1, resistance simultaneously with diode Dja2
One end of Rja1 and one end of resistance Rja3 are connected, and the other end of resistance Rja1 is connected with the negative electrode of voltage-stabiliser tube Zja1, voltage stabilizing
The anode of pipe Zja1 is connected with the anode of diode Dja3, the negative electrode of diode Dja3 one end simultaneously with electric capacity Cja2 and electricity
The one end for hindering Rja2 is connected, and the other end of resistance Rja2 is connected with the base stage of NPN type BJT pipes Qja1, NPN type BJT pipes Qja1's
Colelctor electrode is connected with the other end of resistance Rja3 and the base stage of NPN type BJT pipes Qja2 simultaneously, the current collection of NPN type BJT pipes Qja2
Pole constitutes the output end j2a of alternating voltage control DC current source VCCSj, emitter stage and the resistance Rja4 of NPN type BJT pipes Qja2
One end be connected, the other end of resistance Rja4 and emitter stage, the other end and electric capacity of electric capacity Cja2 of NPN type BJT pipes Qja1
The other end of Cja1 collectively forms the output end j2b of alternating voltage control DC current source VCCSj.
For the embodiment of the present invention 1, uj=vac, only considerSituation, ignore Dja1, Dja2 and
The forward conduction voltage drop of Dja3, ignores the base-emitter conduction voltage drop of Qja1 and Qja2, it is assumed that Vzja1 is voltage-stabiliser tube Zja1
Reverse-conducting pressure drop, β ja1 for Qja1 DC current gain, when Cja1 is sufficiently small, Cja2 is sufficiently large, Qja2 direct current
When flow enhancement β ja2 are also sufficiently large, can derive：
If
ThenTake coefficient
When the increment of β ja1Rja3 ＞ Rja2 and Vac is more than zero, uj=vac is taken, the peak value increment of fj (uj) is negative
Number.To all of j, if β ja1Rja3 ＞ Rja2 set up, then the envelope peak iac_enp of input current iac will be with friendship
Flow the increase of the virtual value Vac of voltage source vac and reduce.
Fig. 5 be only with alternating voltage control DC current source VCCS1 (i.e. n=1) and load Z1 be resistance with switch
The simulation waveform obtained in the case of the compound load of pipe series connection.As shown in Figure 5, when Vac increases, the embodiment of the present invention 1
The characteristics of increment with input current iac envelope peaks iac_enp is negative.
Embodiment 2：Reference picture 3 and Fig. 6, the alternating voltage control DC current source VCCSj of the embodiment of the present invention 2 include one
Many voltage-multiplying circuits of individual four port, diode Djb4, resistance Rjb4, resistance Rjb5, resistance Rjb6, resistance Rjb7 and positive-negative-positive BJT
Pipe Qjb1, the port jc of many voltage-multiplying circuits constitute the input j1a of the alternating voltage control DC current source VCCSj,
The port jd of many voltage-multiplying circuits constitutes the input j1b of the alternating voltage control DC current source VCCSj, described many times
The port je of volt circuit is connected with the anode of diode Djb4, one end of the port jf and resistance Rjb5 of many voltage-multiplying circuits with
And one end of resistance Rjb7 collectively forms the output end j2b, diode Djb4 of the alternating voltage control DC current source VCCSj
Negative electrode be connected with one end of resistance Rjb4, the other end of the resistance Rjb4 other end and positive-negative-positive BJT simultaneously with resistance Rjb5
The base stage of pipe Qjb1 is connected, and the emitter stage of positive-negative-positive BJT pipes Qjb1 is connected with one end of resistance Rjb6, the other end of resistance Rjb6
Constitute the output end j2a of the alternating voltage control DC current source VCCSj, the colelctor electrode and resistance of positive-negative-positive BJT pipes Qjb1
The other end of Rjb7 is connected.
The voltage of many voltage-multiplying circuit port je to many voltage-multiplying circuit port jf and many voltage-multiplying circuit ports
Jc is linear to the voltage peak of many voltage-multiplying circuit port jd, proportionality coefficient k>1.
Many voltage-multiplying circuits are voltage triplers, proportionality coefficient k ≈ 3, and many voltage-multiplying circuits are by electric capacity Cjb1, electric capacity
Cjb2, electric capacity Cjb3, diode Djb1, diode Djb2, diode Djb3, voltage-stabiliser tube Zjb1, voltage-stabiliser tube Zjb2, voltage-stabiliser tube
Zjb3, resistance Rjb1, resistance Rjb2 and resistance Rjb3 composition, one end of electric capacity Cjb1 constitute the port of many voltage-multiplying circuits
The other end of jc, electric capacity Cjb1 is connected with the anode of voltage-stabiliser tube Zjb1 and the anode of diode Djb2 simultaneously, voltage-stabiliser tube Zjb1
Negative electrode be connected with one end of resistance Rjb1, the other end of resistance Rjb1 is connected with the negative electrode of diode Djb1, diode Djb1
One end of anode and electric capacity Cjb2 collectively form the port jd of many voltage-multiplying circuits, the negative electrode and resistance of diode Djb2
One end of Rjb2 is connected, and the other end of resistance Rjb2 is connected with the negative electrode of voltage-stabiliser tube Zjb2, the anode of voltage-stabiliser tube Zjb2 and meanwhile with
The anode of diode Djb3 and the other end of electric capacity Cjb2 are connected, the negative electrode of diode Djb3 and one end phase of resistance Rjb3
Even, the other end of resistance Rjb3 is connected with the negative electrode of voltage-stabiliser tube Zjb3, and the anode of voltage-stabiliser tube Zjb3 is total to one end of electric capacity Cjb3
With the port je for constituting many voltage-multiplying circuits, the other end of electric capacity Cjb3 constitutes the port jf of many voltage-multiplying circuits.
For the embodiment of the present invention 2, ignore the emitter stage-base stage conduction voltage drop of Q1 and Q2, uj=| vac |, uj2 ≈ | vac
|.Assuming that Vzjb1 is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb1, Vzjb2 is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb2, and Vzjb3 is
The reverse-conducting pressure drop of voltage-stabiliser tube Zjb3, uj2 is that the alternating voltage controls DC current source VCCSj port j2a to the friendship
The voltage of stream voltage control DC current source VCCSj port j2b, β jb1 are the DC current gains of positive-negative-positive BJT pipes Qjb1.Only
Consider Vzjb1=Vzjb2=Vzjb3 andSituation, ignore the forward direction of Djb1, Djb2, Djb3 and Djb4
Conduction voltage drop, ignores Qjb1 emitter stages-base stage conduction voltage drop, works as Rjb7<<Rjb6, β jb1 are sufficiently large, Rjb6 β jb1>>
(Rjb4//Rjb5) and when Cjb1, Cjb2 and Cjb3 are sufficiently large, can derive：
WhenWhen,
Take coefficient
Work as Rjb4<When the increment of 2Rjb5 and Vac is more than zero, the peak of uj=| vac | and uj2 ≈ | vac |, fj (uj) is taken
Value increment is negative.To all of j, if Rjb4<2Rjb5 sets up, then the envelope peak iac_enp of input current iac
To reduce with the increase of the virtual value Vac of alternating-current voltage source vac.
Fig. 7 be only with alternating voltage control DC current source VCCS1 (i.e. n=1) and load Z1 be resistance with switch
The simulation waveform obtained in the case of the compound load of pipe series connection.As shown in Figure 7, when Vac increases, the embodiment of the present invention 2
The characteristics of increment with input current iac envelope peaks iac_enp is negative.
Embodiment 3：Reference picture 3, Fig. 4 and Fig. 8, on the basis of inventive embodiments 1, the addition resistance of inventive embodiments 3
Rja5, resistance Rja6, resistance Rja7, resistance Rja8, resistance Rja9, NPN type BJT pipes Qja3 and NPN type BJT pipe Qja4, resistance
One end of Rja5 is connected with the emitter stage of NPN type BJT pipes Qja2, the other end of resistance Rja5 simultaneously with one end of resistance Rja6 with
And the base stage of NPN type BJT pipes Qja3 is connected, the colelctor electrode of NPN type BJT pipes Qja3 one end simultaneously with resistance Rja7 and NPN
The base stage of type BJT pipes Qja4 is connected, and the colelctor electrode of NPN type BJT pipes Qja4 is connected with one end of resistance Rja8, and resistance Rja8's is another
One end is connected with the colelctor electrode of NPN type BJT pipes Qja2, and the emitter stage of NPN type BJT pipes Qja4 is connected with one end of resistance Rja9,
The other end of resistance Rja9 emitter stage, the emitter stage and resistance of NPN type BJT pipes Qja3 simultaneously with NPN type BJT pipes Qja1
The other end of Rja6 is connected, and the other end of resistance Rja7 is connected with the negative electrode of diode Dja3.
For the embodiment of the present invention 3, the hypothesis with inventive embodiments 1 is identical, and ignores the emitter stage-base stage of Q1 and Q2
Conducting voltage, uj=| vac |, uj2 ≈ | vac |.Ignore the colelctor electrode-emitter stage conduction voltage drop of Qja4, it is assumed that Rja9<<Rja8,
Can derive：WhenAndWhen, Qja2
Cut-off, Qja3 cut-offs, Qja4 conductings,
Fig. 9 be only with alternating voltage control DC current source VCCS1 (i.e. n=1) and load Z1 be resistance with switch
The simulation waveform obtained in the case of the compound load of pipe series connection.As shown in Figure 9, when Vac increases, the embodiment of the present invention 3
The characteristics of increment with input current iac envelope peaks iac_enp is negative.Compared with the embodiment of the present invention 1, the present invention is real
Example 3 is applied with PF values higher, lower THD values and smaller Harmonics of Input amount, the dead band in input current iac waveforms
Time shortens.
Embodiment 4：Reference picture 3, Fig. 6 and Figure 10, on the basis of inventive embodiments 2, the addition resistance of inventive embodiments 4
Rjb8, resistance Rjb9, resistance Rjb10, resistance Rjb11, resistance Rjb12, NPN type BJT pipes Qjb2 and NPN type BJT pipe Qjb3, electricity
The one end for hindering Rjb8 is connected with the colelctor electrode of positive-negative-positive BJT pipes Qjb1, and the other end of resistance Rjb8 is while one end with resistance Rjb9
And the base stage of NPN type BJT pipes Qjb2 is connected, the colelctor electrode of NPN type BJT pipes Qjb2 simultaneously with one end of resistance Qjb10 and
The base stage of NPN type BJT pipes Qjb3 is connected, and the colelctor electrode of NPN type BJT pipes Qjb3 is connected with one end of resistance Rjb11, resistance
The other end of Rjb11 is connected with the other end of resistance Rjb6, the emitter stage of NPN type BJT pipes Qjb3 and one end phase of resistance Rjb12
Even, the other end of resistance Rjb12 is another with one end of resistance Rjb7, the emitter stage of NPN type BJT pipes Qjb2 and resistance Rjb9's
End is connected, and the other end of resistance Rjb10 is connected with the anode of diode Djb4.
For the embodiment of the present invention 4, many voltage-multiplying circuits are voltage triplers, and the hypothesis with inventive embodiments 2 is identical,
Uj=| vac |, uj2 ≈ | vac |.Ignore the colelctor electrode-emitter stage conduction voltage drop of Qjb3, it is assumed that Rjb12<<Rjb11, can derive
：WhenAndWhen, Qjb1 cut-offs, Qjb2
Cut-off, Qjb3 conductings,
Figure 11 be only with alternating voltage control DC current source VCCS1 (i.e. n=1) and load Z1 be resistance with switch
The simulation waveform obtained in the case of the compound load of pipe series connection.As shown in Figure 11, when Vac increases, the embodiment of the present invention 4
The characteristics of increment with input current iac envelope peaks iac_enp is negative.Compared with the embodiment of the present invention 2, the present invention is real
Example 4 is applied with PF values higher, lower THD values and smaller Harmonics of Input amount, the dead band in input current iac waveforms
Time shortens.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Being not construed as of scope is only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in this area skill
Art personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (10)
1. a kind of feed forward type limits the single phase bridge type rectifier circu of input current envelope, it is characterised in that：The single-phase bridge is whole
Current circuit include positive-negative-positive BJT pipes Q1, positive-negative-positive BJT pipes Q2, input capacitance C1, output capacitance C2, diode D1, diode D2 and
It is the integer more than or equal to 1, the emitter stage of positive-negative-positive BJT pipes Q1 that n alternating voltage controls DC current source VCCS1 to VCCSn, n
While anode, the negative electrode of diode D1, one end of electric capacity C1 and alternating voltage control DC current with alternating-current voltage source vac
The input j1a of source VCCSj is connected, and the value of j is 1 to n, the base stage of positive-negative-positive BJT pipes Q1 base simultaneously with positive-negative-positive BJT pipes Q2
Pole is connected with the output end j2a of alternating voltage control DC current source VCCSj, and the colelctor electrode of positive-negative-positive BJT pipes Q1 is while and PNP
One end of the colelctor electrode of type BJT pipes Q2, one end of electric capacity C2 and load Z1 is connected, the other end of electric capacity C2 simultaneously with load Z1
The other end, the anode of diode D1, the output end of the anode of diode D2 and alternating voltage control DC current source VCCSj
J2b is connected, the negative electrode of diode D2 negative terminal simultaneously with alternating-current voltage source vac, the other end of electric capacity C1, positive-negative-positive BJT pipes Q2
The input j1b of emitter stage and alternating voltage control DC current source VCCSj is connected；
The alternating voltage controls DC current source VCCSj in the input voltage range that the single phase bridge type rectifier circu is allowed
Limit the envelope iac_en of input current iac, the i.e. increment of the envelope peak iac_enp of input current iac and be less than input voltage
The increment of the virtual value Vac of vac, the also increment of the envelope peak iac_enp including input current iac are negative.
2. a kind of feed forward type as claimed in claim 1 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：Fj (uj) is the electric current for flowing into the alternating voltage control DC current source VCCSj output ends j2a, and uj is that alternating current is voltage-controlled
The voltage of DC current source VCCSj inputs j1a processed to alternating voltage control DC current source VCCSj inputs j1b, whenWhen,Coefficient Aj, Bj, Cj are big
In 0.
3. a kind of feed forward type as claimed in claim 2 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：If coefficient Aj<Peak value increment of the increment of Bj and Vac more than zero, fj (uj) is negative.
4. a kind of feed forward type as claimed in claim 1 or 2 limits the single phase bridge type rectifier circu of input current envelope, its feature
It is：The alternating voltage control DC current source VCCSj includes diode Dja1, diode Dja2, diode Dja3, resistance
Rja1, resistance Rja2, resistance Rja3, resistance Rja4, voltage-stabiliser tube Zja1, electric capacity Cja1, electric capacity Cja2, NPN type BJT pipes Qja1 and
The anode of NPN type BJT pipe Qja2, diode Dja1 constitutes the input j1a of alternating voltage control DC current source VCCSj, two
The anode of pole pipe Dja2 constitutes the input j1b of alternating voltage control DC current source VCCSj, and the negative electrode of diode Dja1 is simultaneously
One end of negative electrode, one end of electric capacity Cja1, one end of resistance Rja1 and resistance Rja3 with diode Dja2 is connected, resistance
The other end of Rja1 is connected with the negative electrode of voltage-stabiliser tube Zja1, and the anode of voltage-stabiliser tube Zja1 is connected with the anode of diode Dja3, and two
The negative electrode of pole pipe Dja3 is connected with one end of electric capacity Cja2 and one end of resistance Rja2 simultaneously, the other end of resistance Rja2 and
The base stage of NPN type BJT pipes Qja1 is connected, the colelctor electrode of the NPN type BJT pipes Qja1 other end and NPN simultaneously with resistance Rja3
The base stage of type BJT pipes Qja2 is connected, and the colelctor electrode of NPN type BJT pipes Qja2 constitutes alternating voltage control DC current source VCCSj's
Output end j2a, the emitter stage of NPN type BJT pipes Qja2 is connected with one end of resistance Rja4, the other end and NPN type of resistance Rja4
It is straight that the other end of the emitter stage, the other end of electric capacity Cja2 and electric capacity Cja1 of BJT pipes Qja1 collectively forms alternating voltage control
The output end j2b of stream current source VCCSj.
5. a kind of feed forward type as claimed in claim 4 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：Fj (uj) is the electric current for flowing into the alternating voltage control DC current source VCCSj output ends j2a, and uj is that alternating current is voltage-controlled
The voltage of DC current source VCCSj inputs j1a processed to alternating voltage control DC current source VCCSj inputs j1b, β ja1 are
The DC current gain of Qja1, Vzja1 is the reverse-conducting pressure drop of voltage-stabiliser tube Zja1, whenβja1·
When the increment of Rja3 ＞ Rja2 and Vac is more than zero, the peak value increment of fj (uj) is negative.
6. a kind of feed forward type as claimed in claim 1 or 2 limits the single phase bridge type rectifier circu of input current envelope, its feature
It is：The alternating voltage control DC current source VCCSj includes many voltage-multiplying circuits, diode Djb4, the electricity of four ports
Resistance Rjb4, resistance Rjb5, resistance Rjb6, resistance Rjb7 and positive-negative-positive BJT pipes Qjb1, the port jc of many voltage-multiplying circuits are constituted
The input j1a of the alternating voltage control DC current source VCCSj, the port jd of many voltage-multiplying circuits constitute the exchange
The input j1b of voltage control DC current source VCCSj, the anode phase of the port je and diode Djb4 of many voltage-multiplying circuits
Even, one end of port jf and resistance Rjb5 and one end of resistance Rjb7 of many voltage-multiplying circuits collectively form the alternating current
The output end j2b of voltage-controlled DC current source VCCSj processed, the negative electrode of diode Djb4 is connected with one end of resistance Rjb4, resistance
The other end of Rjb4 is connected with the other end of resistance Rjb5 and the base stage of positive-negative-positive BJT pipes Qjb1 simultaneously, positive-negative-positive BJT pipes Qjb1
Emitter stage be connected with one end of resistance Rjb6, the other end of resistance Rjb6 constitutes the alternating voltage control DC current source
The output end j2a of VCCSj, the colelctor electrode of positive-negative-positive BJT pipes Qjb1 is connected with the other end of resistance Rjb7；
The voltage of many voltage-multiplying circuit port je to many voltage-multiplying circuit port jf is with many voltage-multiplying circuit port jc extremely
The voltage peak of many voltage-multiplying circuit port jd is linear, proportionality coefficient k>1.
7. a kind of feed forward type as claimed in claim 6 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：Many voltage-multiplying circuits are voltage triplers, proportionality coefficient k ≈ 3, many voltage-multiplying circuits by electric capacity Cjb1, electric capacity Cjb2,
Electric capacity Cjb3, diode Djb1, diode Djb2, diode Djb3, voltage-stabiliser tube Zjb1, voltage-stabiliser tube Zjb2, voltage-stabiliser tube Zjb3, electricity
Resistance Rjb1, resistance Rjb2 and resistance Rjb3 compositions, one end of electric capacity Cjb1 constitutes the port jc of many voltage-multiplying circuits, electric capacity
The other end of Cjb1 is connected with the anode of voltage-stabiliser tube Zjb1 and the anode of diode Djb2 simultaneously, the negative electrode of voltage-stabiliser tube Zjb1 and
One end of resistance Rjb1 is connected, and the other end of resistance Rjb1 is connected with the negative electrode of diode Djb1, the anode of diode Djb1 and
One end of electric capacity Cjb2 collectively forms the port jd of many voltage-multiplying circuits, the negative electrode of diode Djb2 and one end of resistance Rjb2
Be connected, the other end of resistance Rjb2 is connected with the negative electrode of voltage-stabiliser tube Zjb2, the anode of voltage-stabiliser tube Zjb2 and meanwhile with diode Djb3
Anode and electric capacity Cjb2 the other end be connected, the negative electrode of diode Djb3 is connected with one end of resistance Rjb3, resistance Rjb3
The other end be connected with the negative electrode of voltage-stabiliser tube Zjb3, the anode of voltage-stabiliser tube Zjb3 and one end of electric capacity Cjb3 collectively form described many
The other end of the port je of voltage-multiplying circuit, electric capacity Cjb3 constitutes the port jf of many voltage-multiplying circuits.
8. a kind of feed forward type as claimed in claim 7 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：Fj (uj) is the electric current for flowing into the alternating voltage control DC current source VCCSj output ends j2a, and uj is that alternating current is voltage-controlled
The voltage of DC current source VCCSj inputs j1a processed to alternating voltage control DC current source VCCSj inputs j1b, Vzjb1
It is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb1, Vzjb2 is the reverse-conducting pressure drop of voltage-stabiliser tube Zjb2, and Vzjb3 is voltage-stabiliser tube Zjb3
Reverse-conducting pressure drop, when Vzjb1=Vzjb2=Vzjb3,Rjb4<The increment of 2Rjb5 and Vac
During more than zero, the peak value increment of fj (uj) is negative.
9. a kind of feed forward type as claimed in claim 4 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：Alternating voltage control DC current source VCCSj also include resistance Rja5, resistance Rja6, resistance Rja7, resistance Rja8,
One end of resistance Rja9, NPN type BJT pipes Qja3 and NPN type BJT pipe Qja4, resistance Rja5 and the transmitting of NPN type BJT pipes Qja2
Extremely it is connected, the other end of resistance Rja5 is connected with one end of resistance Rja6 and the base stage of NPN type BJT pipes Qja3 simultaneously, NPN type
The colelctor electrode of BJT pipes Qja3 is connected with one end of resistance Rja7 and the base stage of NPN type BJT pipes Qja4 simultaneously, NPN type BJT pipes
The colelctor electrode of Qja4 is connected with one end of resistance Rja8, the other end of resistance Rja8 and the colelctor electrode phase of NPN type BJT pipes Qja2
Even, the emitter stage of NPN type BJT pipes Qja4 is connected with one end of resistance Rja9, the other end of resistance Rja9 and meanwhile with NPN type BJT
The other end of the emitter stage, the emitter stage of NPN type BJT pipes Qja3 and resistance Rja6 of pipe Qja1 is connected, and resistance Rja7's is another
End is connected with the negative electrode of diode Dja3.
10. a kind of feed forward type as claimed in claim 7 limits the single phase bridge type rectifier circu of input current envelope, and its feature exists
In：The alternating voltage control DC current source VCCSj also includes resistance Rjb8, resistance Rjb9, resistance Rjb10, resistance
Rjb11, resistance Rjb12, one end of NPN type BJT pipes Qjb2 and NPN type BJT pipe Qjb3, resistance Rjb8 and positive-negative-positive BJT pipes Qjb1
Colelctor electrode be connected, the other end of resistance Rjb8 one end simultaneously with resistance Rjb9 and the base stage phase of NPN type BJT pipes Qjb2
Even, the colelctor electrode of NPN type BJT pipes Qjb2 is connected with one end of resistance Qjb10 and the base stage of NPN type BJT pipes Qjb3 simultaneously,
The colelctor electrode of NPN type BJT pipes Qjb3 is connected with one end of resistance Rjb11, and the other end of resistance Rjb11 is another with resistance Rjb6
End is connected, and the emitter stage of NPN type BJT pipes Qjb3 is connected with one end of resistance Rjb12, the other end and resistance of resistance Rjb12
The other end of one end, the emitter stage of NPN type BJT pipes Qjb2 and resistance Rjb9 of Rjb7 is connected, the other end of resistance Rjb10
Anode with diode Djb4 is connected.
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Effective date of registration: 20210108 Address after: No. 168, Jinghua Road, high tech Zone, Ningbo City, Zhejiang Province Patentee after: NINGBO NINGBIAN POWER TECHNOLOGY Co.,Ltd. Address before: The city Zhaohui six districts Chao Wang Road Hangzhou City, Zhejiang province 310014 18 Patentee before: ZHEJIANG University OF TECHNOLOGY |