CN104485822A - Serially connected electricity supply power supply for multi-stage depressed collector traveling wave tube - Google Patents
Serially connected electricity supply power supply for multi-stage depressed collector traveling wave tube Download PDFInfo
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Abstract
The invention relates to a serially connected electricity supply power supply for a multi-stage depressed collector traveling wave tube. The serially connected electricity supply power supply comprises a primary voltage converter, wherein the output end of the primary voltage converter is connected with a primary coil N0 of a multi-winding high-voltage transformer T1, N secondary coils of the multi-winding high-voltage transformer are respectively connected with the input ends of N rectification filter circuits, the output positive ends and the output negative ends of every two adjacent rectification filter circuits are connected, the output positive end of the first rectification filter circuit is connected with a tube body of the traveling wave tube, the output negative ends of the first to (N-1)th rectification filter circuits are connected with the (N-1) collectors of the traveling wave tube, the output negative end of the N-th rectification filter circuit is connected with the cathode of the traveling wave tube, and the output end of a voltage sampling circuit is connected with the feedback signal input end of the primary voltage converter. The serially connected electricity supply power supply has the advantages that secondary power supplies share one converter, the voltage output speed of each stage of power supply maintains consistency, the reliability is high, the secondary power supplies are connected in series and are superimposed, and the voltage withstanding value of an output filtering capacitor is reduced, so that the size of the whole power supply is greatly reduced, and the power density is high.
Description
Technical field
The present invention relates to radar transmitter technical field, especially a kind of series-fed power supply of multi-level depressurization collector travelling wave tube.
Background technology
Travelling wave tube is widely used in the fields such as radar, electronic countermeasures, satellite communication, in order to improve the efficiency of travelling wave tube, multi-level depressurization collector is adopted to be a kind of effective method, that commonly uses at present has secondary, three grades of depressed collector travelling wave tube, and the method for supplying power to of depressed collector travelling wave tube mainly contains parallel operation and series-fed two kinds of modes.
Wherein, parallel operation is that the negative electrode of travelling wave tube and collector adopt independently Power supply respectively, and the common port of power supply is connected to the negative electrode of travelling wave tube, works alone mutually between each power supply; Its shortcoming is owing to adopting independently Power supply, and its volume is comparatively large, and secondly because each level power supply of collector floats in cathode potential, it is high that it exports requirement of withstand voltage, and the closed loop sampling of power supply needs to take high_voltage isolation measure, and it realizes complexity, and cost is higher.Series-fed adopts multiple independently power sources in series, and the ceiling voltage obtained after series connection is powered to negative electrode, and all the other power supplys, according to traveling-wave tube collector voltage request, power to respectively each collector of travelling wave tube, shortcoming is when travelling wave tube work ratio changes, collector power supply can change thereupon, cathode voltage after will causing overlapped in series like this also changes, for TWT transmitter, power supply precision and the stability General Requirements of the negative electrode of travelling wave tube are higher, and the precision of collector power supply compare cathode power with stability can a low order of magnitude, therefore series-fed is when load changes, for meeting the stable of cathode voltage and precision, require that all the other respectively organize the requirement that power supply also must meet high accuracy and high stability, add cost and realize difficulty.
Visible, series-fed method and parallel operation method cut both ways, and series-fed method more easily realizes, but both have a common shortcoming: all have multiple independently power supply, volume and weight is larger, volume and weight for transmitter has the situation of strict restriction, adopts these two kinds of method of supplying power to be all difficult to realize.
Summary of the invention
The object of the present invention is to provide a kind of volume little, lightweight, realize the miniaturization of power supply, improve the series-fed power supply of the reliability of whole power supply and the multi-level depressurization collector travelling wave tube of power density.
For achieving the above object, present invention employs following technical scheme: a kind of series-fed power supply of multi-level depressurization collector travelling wave tube, comprises primary voltage converter, the primary coil N of its output and Multiple coil high-tension transformer T1
0be connected, N number of secondary coil of Multiple coil high-tension transformer is connected with the input of N number of current rectifying and wave filtering circuit respectively, the output plus terminal of two adjacent current rectifying and wave filtering circuits is connected with output negative terminal, the output plus terminal of the 1st current rectifying and wave filtering circuit connects the body of travelling wave tube, 1st is connected with N-1 collector of travelling wave tube respectively to the output negative terminal of N-1 current rectifying and wave filtering circuit, the output negative terminal of N number of current rectifying and wave filtering circuit connects the negative electrode of travelling wave tube, output for the negative electrode with the voltage sample circuit of N-1 catcher voltage that gather travelling wave tube is connected with the feedback signal input terminal of primary voltage converter.
Described primary voltage converter comprises metal-oxide-semiconductor Q1, its drain electrode connects the positive pole of primary source and the drain electrode of metal-oxide-semiconductor Q3 respectively, the source electrode of metal-oxide-semiconductor Q1 is connected with the drain electrode of electric capacity C3, metal-oxide-semiconductor Q2 respectively, the other end of electric capacity C3 is connected with one end of resonant inductance L1, the primary coil N of another termination Multiple coil high-tension transformer T1 of resonant inductance L1
0one end, the source electrode of metal-oxide-semiconductor Q3 respectively with the drain electrode of metal-oxide-semiconductor Q4, the primary coil N of Multiple coil high-tension transformer T1
0the other end be connected, the source electrode of metal-oxide-semiconductor Q2, the source electrode of metal-oxide-semiconductor Q4 all connect the negative pole of primary source, storage capacitor C1, C2 are all connected across between the drain electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2, the grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 all drives with MOSFET and the output of sampling voltage treatment circuit is connected, and MOSFET drives and the input of sampling voltage treatment circuit is connected with the output of voltage sample circuit.
Described Multiple coil high-tension transformer T1 adopts high μ value ferrite or ultracrystalline magnetic core material, N number of secondary coil segmentation coiling.The structure of described N number of current rectifying and wave filtering circuit is identical, current rectifying and wave filtering circuit comprises rectifier diode V1, its negative electrode is connected with one end of the one secondary coil of Multiple coil high-tension transformer T1, its anode divides two-way to export, one tunnel is as the output negative terminal of current rectifying and wave filtering circuit, another road is connected with the anode of rectifier diode V3, the negative electrode of rectifier diode V3 respectively with the anode of rectifier diode V4, the other end of the one secondary coil of Multiple coil high-tension transformer T1 is connected, the negative electrode of rectifier diode V4 divides two-way to export, one tunnel is connected with the negative electrode of rectifier diode V2, another road is as the output plus terminal of current rectifying and wave filtering circuit, the anode of rectifier diode V2 is connected with the negative electrode of rectifier diode V1, high-voltage filtering capacitor C4, C5 is all connected across the output plus terminal of current rectifying and wave filtering circuit and exports between negative terminal.
Described voltage sample circuit is made up of N number of highvoltage resistance potential divider, each highvoltage resistance potential divider is by a high-pressure side resistance and a low-pressure end resistant series composition, 1st is connected with the negative electrode of travelling wave tube, a N-1 collector respectively to the high-pressure side resistance of N number of highvoltage resistance potential divider, and the 1st is all connected with the body of travelling wave tube to the low-pressure end resistance of N number of highvoltage resistance potential divider.
Described MOSFET drives and sampling voltage treatment circuit comprises sampling voltage treatment circuit and collector sampling voltage acquisition cuicuit, sampling voltage treatment circuit comprises resistance R1, its one end is connected with the sampled signal output of voltage sample circuit, the other end is connected with 3 pin of emitter follower N1A, resistance R1 is by electric capacity C1 ground connection, 2 pin of emitter follower N1A are connected with its 1 pin, its 1 pin is connected with the input of reverse voltage amplifier by resistance R3, described sign-changing amplifier is by resistance R5, resistance R6, resistance R7 and amplifier N1B composition, resistance R3 is connected with 6 pin of amplifier N1B by resistance R5, 5 pin of amplifier N1B are by resistance R6 ground connection, resistance R7 is connected across 6 of amplifier N1B, on 7 pin, 7 pin of amplifier N1B are connected with one end of resistance R8, the other end of resistance R8 is as the output of sampling voltage treatment circuit, emitter follower N1A and amplifier N1B all adopts LM124 chip.
Described collector sampling voltage acquisition cuicuit comprises subtracter N2A, 2,3 pin access the output of sample voltage processing circuitry respectively by resistance R14, R13, its 3 pin is by resistance R15 ground connection, its 2 pin connects its 1 pin by resistance R16, its 4 pin connects+15V direct current, its 11 pin connects-15V direct current, and its 1 pin is as the output of collector sampling voltage acquisition cuicuit, and subtracter N2A adopts LM124 chip.
As shown from the above technical solution, the secondary output of Multiple coil high-tension transformer T1 of the present invention has multiple winding, overlapped in series after secondary coil rectifying and wave-filtering, power to respectively the negative electrode of travelling wave tube and collector, simultaneously because secondary power shares a converter, the speed that therefore supply voltage at different levels exports is consistent, without the need to considering the climbing speed powering up order and power supply of each level power supply, control simple, circuit realiration is convenient, and reliability is high; Power sharing at different levels primary voltage converter, secondary power overlapped in series, withstand voltage of each group power supply needs the voltage considering that each winding exports, the withstand voltage reduction of output filter capacitor, and the volume of whole power supply is reduced greatly, and power density is high; The closed loop of power supply takes from the power supply after overlapped in series, this power supply is cathode power, when therefore can ensure that travelling wave tube work ratio changes, cathode power voltage keeps stable, Multiple coil high-tension transformer T1 secondary coil is by reasonably distributing simultaneously, still can ensure that collector power supply exports to change in certain scope, meet system requirements.
Accompanying drawing explanation
Fig. 1 is circuit system block diagram of the present invention.
Fig. 2 is the circuit theory diagrams of primary voltage converter in the present invention.
Fig. 3 is the circuit theory diagrams of Multiple coil high-tension transformer T1 in the present invention.
Fig. 4 is the circuit theory diagrams of current rectifying and wave filtering circuit in the present invention.
Fig. 5 is the circuit theory diagrams of voltage sample circuit in the present invention.
Fig. 6 is the circuit theory diagrams of sampling voltage treatment circuit in the present invention.
Fig. 7 is the circuit theory diagrams of collector sampling voltage acquisition cuicuit in the present invention.
Embodiment
A series-fed power supply for multi-level depressurization collector travelling wave tube, comprises primary voltage converter 1, the primary coil N of its output and Multiple coil high-tension transformer T1
0be connected, N number of secondary coil of Multiple coil high-tension transformer is connected with the input of N number of current rectifying and wave filtering circuit 3 respectively, N>=2, the output plus terminal of two adjacent current rectifying and wave filtering circuits 3 is connected with output negative terminal, the output plus terminal of the 1st current rectifying and wave filtering circuit 3 connects the body of travelling wave tube, 1st is connected with N-1 collector of travelling wave tube respectively to the output negative terminal of N-1 current rectifying and wave filtering circuit 3, the output negative terminal of N number of current rectifying and wave filtering circuit 3 connects the negative electrode of travelling wave tube, output for the voltage sample circuit 4 of the negative electrode with N-1 catcher voltage that gather travelling wave tube is connected with the feedback signal input terminal of primary voltage converter 1, as shown in Figure 1.
As shown in Figure 2, described primary voltage converter 1 comprises metal-oxide-semiconductor Q1, its drain electrode connects the positive pole of primary source and the drain electrode of metal-oxide-semiconductor Q3 respectively, the source electrode of metal-oxide-semiconductor Q1 is connected with the drain electrode of electric capacity C3, metal-oxide-semiconductor Q2 respectively, the other end of electric capacity C3 is connected with one end of resonant inductance L1, the primary coil N of another termination Multiple coil high-tension transformer T1 of resonant inductance L1
0one end, the source electrode of metal-oxide-semiconductor Q3 respectively with the drain electrode of metal-oxide-semiconductor Q4, the primary coil N of Multiple coil high-tension transformer T1
0the other end be connected, the source electrode of metal-oxide-semiconductor Q2, the source electrode of metal-oxide-semiconductor Q4 all connect the negative pole of primary source, storage capacitor C1, C2 are all connected across between the drain electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2, the grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 all drives with MOSFET and the output of sampling voltage treatment circuit 2 is connected, and MOSFET drives and the input of sampling voltage treatment circuit 2 is connected with the output of voltage sample circuit 4.MOSFET drives and sampling voltage treatment circuit 2 exports four road drive singal, be respectively DRV1, DRV2, DRV3 and DRV4, four road drive singal are connected to the grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 successively, outer samples signal 1, sampled signal 2,, sampled signal N-1 and negative electrode sampling are sent into MOSFET and are driven and sampling voltage treatment circuit 2.
The effect of whole primary voltage converter 1 realizes DC-AC voltage transformation, full-bridge (can half-bridge be used during small-power) series/parallel resonance or full bridge phase shift PWM is adopted to realize, metal-oxide-semiconductor Q1 ~ Q4 MOSFET drive and sampling voltage treatment circuit 2 effect under, according to the working method of drived control chip, conducting successively, in the primary return of converter, primary source, metal-oxide-semiconductor Q1, Q2, Q3, Q4, resonant inductance L1, electric capacity C3, the elementary formation resonance of Multiple coil high-tension transformer T1, produce a pulse voltage, by the voltage transformation of Multiple coil high-tension transformer T1, secondary each winding forms pulse voltage, primary source is DC power supply, thered is provided by outside, be responsible for the direct current power supply of primary converter.
As shown in Figure 3, described Multiple coil high-tension transformer T1 adopts high μ value ferrite or ultracrystalline magnetic core material, N number of secondary coil segmentation coiling.The primary coil N of Multiple coil high-tension transformer T1
0be made up of one or more winding, primary coil N
0can connect also can be in parallel; The number of secondary coil depends on the collector quantity of depressed collector travelling wave tube, if there be N-1 collector, then secondary have N number of winding, be respectively N1, N2 ..., Nn (n=N), each winding respectively with rectifying and wave-filtering 1, rectifying and wave-filtering 2 ..., rectifying and wave-filtering N connects.Multiple coil high-tension transformer T1 is according to primary coil N
0with the no-load voltage ratio of secondary coil N1 ~ Nn, elementary voltage is promoted to different voltage on the secondary winding.
As shown in Figure 4, the structure of described N number of current rectifying and wave filtering circuit 3 is identical, current rectifying and wave filtering circuit 3 comprises rectifier diode V1, its negative electrode is connected with one end of the one secondary coil of Multiple coil high-tension transformer T1, its anode divides two-way to export, one tunnel is as the output negative terminal of current rectifying and wave filtering circuit 3, another road is connected with the anode of rectifier diode V3, the negative electrode of rectifier diode V3 respectively with the anode of rectifier diode V4, the other end of the one secondary coil of Multiple coil high-tension transformer T1 is connected, the negative electrode of rectifier diode V4 divides two-way to export, one tunnel is connected with the negative electrode of rectifier diode V2, another road is as the output plus terminal of current rectifying and wave filtering circuit 3, the anode of rectifier diode V2 is connected with the negative electrode of rectifier diode V1, high-voltage filtering capacitor C4, C5 is all connected across the output plus terminal of current rectifying and wave filtering circuit 3 and exports between negative terminal.The concrete number of high-voltage filtering capacitor, determines according to the power of out-put supply and magnitude of voltage.
After certain winding high-frequency ac voltage secondary of Multiple coil high-tension transformer T1 is carried out rectification and filtering, negative lower positive power supply in formation, rectifier diode V1, V2, V3, V4 form full bridge rectifier, high-voltage filtering capacitor C4, C5 carry out filtering and energy storage to the voltage after rectification, reduce mains ripple and ripple, for load provides pulse current.The connection of each current rectifying and wave filtering circuit as shown in Figure 1, current rectifying and wave filtering circuit 1, current rectifying and wave filtering circuit 2 ..., after current rectifying and wave filtering circuit N connects, form travelling wave tube cathode voltage.The each catcher voltage of travelling wave tube is formed after being superposed by current rectifying and wave filtering circuit, wherein collector 1 voltage, the i.e. voltage of collector 1 opposing cathode, by current rectifying and wave filtering circuit 2, and current rectifying and wave filtering circuit 3 ..., current rectifying and wave filtering circuit N provides after connecting; Collector 2 voltage, the i.e. voltage of collector 2 opposing cathode, by current rectifying and wave filtering circuit 3, current rectifying and wave filtering circuit 4 ..., current rectifying and wave filtering circuit N provides after connecting; Collector N-1 voltage, the i.e. voltage of collector N-1 opposing cathode, provided by current rectifying and wave filtering circuit N.The total number of turns of the secondary winding of Multiple coil high-tension transformer T1 determines according to the voltage ratio of primary and secondary, and the turn ratio n of Multiple coil high-tension transformer T1 is:
n＝V
0/(V
i×M)
In formula: V
0for output voltage; V
ifor input voltage; M is output voltage conversion ratio.
Due to travelling wave tube work time, ripple and the stability of its cathode voltage are the most key, determine the performance of whole transmitter (amplifier), therefore must ensure that its value is when travelling wave tube work ratio changes, still can keep certain stability, therefore the closed loop sample circuit of power supply adopts resitstance voltage divider to carry out target voltage and sample, as shown in Figure 5.Traveling-wave tube collector voltage compares cathode voltage, and its stability and ripple can low orders of magnitude, and therefore when loaded work piece ratio changes, cathode voltage remains unchanged, even if now catcher voltage has some changes, still can meet the requirement of system.
As shown in Figure 5, described voltage sample circuit 4 is made up of N number of highvoltage resistance potential divider, each highvoltage resistance potential divider is by a high-pressure side resistance and a low-pressure end resistant series composition, 1st is connected with the negative electrode of travelling wave tube, a N-1 collector respectively to the high-pressure side resistance of N number of highvoltage resistance potential divider, and the 1st is all connected with the body of travelling wave tube to the low-pressure end resistance of N number of highvoltage resistance potential divider.
The effect of voltage sample circuit 4 carries out dividing potential drop sampling to each step voltage, MOSFET driving and the sampling voltage treatment circuit 2 of giving Fig. 2 process, each highvoltage resistance potential divider is by two resistance---and low-pressure end resistance and high-pressure side resistant series form, resistance R11 and resistance R12 forms a highvoltage resistance potential divider, resistance R21 and resistance R22 forms a highvoltage resistance potential divider, resistance Rn1 and resistance Rn2 forms a highvoltage resistance potential divider, wherein resistance R11, R21, Rn1 is the low-pressure end resistance of highvoltage resistance potential divider, resistance R12, R22, Rn2 is the high-pressure side resistance of highvoltage resistance potential divider, low-pressure end resistance adapter body namely, high-pressure side resistance connects negative electrode and each collector of travelling wave tube, wherein cathode voltage sampling is as the voltage feedback signal of primary voltage converter 1, when cathode voltage changes, sampling voltage is corresponding to change, pulsewidth or the frequency of drive singal can be regulated by this voltage, control MOSFET (or IGBT, SCR) ON time of switch, regulate negative electrode output voltage thus, keep the stable of output voltage.
In order to ensure that each catcher voltage of travelling wave tube works within the limits prescribed, needing to sample each step voltage of collector, judging.Because voltage sampling 1 ~ voltage sampling N-1 samples over the ground, and catcher voltage is the voltage of opposing cathode, therefore the value sampled over the ground is not the sampling voltage of collector 1 ~ collector N-1, actual collector sampling voltage is the negative electrode difference that samples over the ground of sampling voltage and collector over the ground, so various sampling voltage all must send into the MOSFET driving shown in Fig. 2 and sampling voltage treatment circuit 2 processes.
As shown in Figure 6, described MOSFET drives and sampling voltage treatment circuit 2 comprises sampling voltage treatment circuit and collector sampling voltage acquisition cuicuit, sampling voltage treatment circuit comprises resistance R1, its one end is connected with the sampled signal output of voltage sample circuit 4, the other end is connected with 3 pin of emitter follower N1A, resistance R1 is by electric capacity C1 ground connection, 2 pin of emitter follower N1A are connected with its 1 pin, its 1 pin is connected with the input of reverse voltage amplifier by resistance R3, described sign-changing amplifier is by resistance R5, resistance R6, resistance R7 and amplifier N1B composition, resistance R3 is connected with 6 pin of amplifier N1B by resistance R5, 5 pin of amplifier N1B are by resistance R6 ground connection, resistance R7 is connected across 6 of amplifier N1B, on 7 pin, 7 pin of amplifier N1B are connected with one end of resistance R8, the other end of resistance R8 is as the output of sampling voltage treatment circuit, emitter follower N1A and amplifier N1B all adopts LM124 chip.
The effect of sampling voltage treatment circuit is that the sampling voltage from Fig. 5 is oppositely amplified process.If there be N-1 collector in Fig. 5, then to there being N-1 sampling voltage treatment circuit, each sampling voltage treatment circuit principle is identical, is described in the process of this Jin Yi mono-road signal.The sampling negative voltage obtained by highvoltage resistance potential divider from Fig. 5 is input to 3 pin of operational amplifier N1A by the resistance R1 of Fig. 6, N1A is emitter follower, effect reduces sampling interference, voltage is by after 1 pin of N1A and resistance R3, send into by N1B, R5, R6, the reverse voltage amplifier of R7 composition, sampling voltage is oppositely amplified, amplification coefficient is (R7 ÷ R5), a positive voltage of following input voltage and changing in proportion is obtained at 7 pin of N1B, if be negative electrode sampling voltage, then by after Fig. 6 processing of circuit, be sent to follow-up circuit and carry out feedback closed loop, carry out negative electrode overvoltage or under-voltage comparison setting simultaneously, if be collector sampling voltage over the ground, then by after processing of circuit as shown in Figure 6, the subtracter being sent to Fig. 7 together with the negative electrode sampling voltage after process carries out subtraction process, after obtaining the sampling voltage of each collector, carries out the overvoltage of catcher voltage or under-voltage comparison process.Electric capacity C1 is input filter capacitor, resistance R1, electric capacity C2 and resistance R2, resistance R3, resistance R4 and electric capacity C3, and resistance R8, resistance R9 and electric capacity C5 form RC filter circuit respectively, filtering spike or burr, reduces external interference.
As shown in Figure 7, described collector sampling voltage acquisition cuicuit comprises subtracter N2A, 2,3 pin access the output of sample voltage processing circuitry respectively by resistance R14, R13, its 3 pin is by resistance R15 ground connection, its 2 pin connects its 1 pin by resistance R16, and its 4 pin connects+15V direct current, and its 11 pin connects-15V direct current, its 1 pin is as the output of collector sampling voltage acquisition cuicuit, and subtracter N2A adopts LM124 chip.
In order to obtain collector sampling voltage at different levels, two-way input signal being subtracted each other, obtaining a difference signal.Negative electrode sampling voltage U
kwith collector sampling voltage over the ground, be assumed to be collector 1 sampling voltage U1 over the ground, all the other are similar, after processing of circuit as shown in Figure 6, obtain two-way voltage, are respectively U
kand U
1, send into Fig. 7 subtracter and subtract each other, its output voltage U
c1be the sampling voltage of collector 1, its value is:
If the value of resistance R16 and resistance R14 is equal, then above formula becomes U
c1=(U
k-U
1), the sampling voltage of every road collector just can be obtained by Fig. 7.
Negative electrode sampling voltage passes through Fig. 6, each road sampling voltage of collector is by after Fig. 6 and Fig. 7 process, driven by MOSFET and the drived control chip of sampling voltage treatment circuit 2 by its voltage compared with the reference voltage of setting, judge the whether overvoltage or under-voltage of each step voltage, just can ensure that travelling wave tube is operated in the voltage range of regulation.
In sum, the collector power supply of multi-level depressurization collector travelling wave tube and cathode power are shared a primary voltage converter 1 by the present invention, use the Multiple coil high-tension transformer T1 of a secondary output Multiple coil, cathode voltage and catcher voltage at different levels is provided by the method for transformer secondary output winding reasonable distribution, thus realize the miniaturization of power supply, improve reliability and the power density of whole power supply.
Claims (7)
1. a series-fed power supply for multi-level depressurization collector travelling wave tube, is characterized in that: comprise primary voltage converter (1), the primary coil N of its output and Multiple coil high-tension transformer T1
0be connected, N number of secondary coil of Multiple coil high-tension transformer is connected with the input of N number of current rectifying and wave filtering circuit (3) respectively, the output plus terminal of two adjacent current rectifying and wave filtering circuits (3) is connected with output negative terminal, the output plus terminal of the 1st current rectifying and wave filtering circuit (3) connects the body of travelling wave tube, the output negative terminal of the 1st to N-1 current rectifying and wave filtering circuit (3) is connected with N-1 collector of travelling wave tube respectively, the output negative terminal of N number of current rectifying and wave filtering circuit (3) connects the negative electrode of travelling wave tube, output for the voltage sample circuit (4) of the negative electrode with N-1 catcher voltage that gather travelling wave tube is connected with the feedback signal input terminal of primary voltage converter (1).
2. the series-fed power supply of multi-level depressurization collector travelling wave tube according to claim 1, it is characterized in that: described primary voltage converter (1) comprises metal-oxide-semiconductor Q1, its drain electrode connects the positive pole of primary source and the drain electrode of metal-oxide-semiconductor Q3 respectively, the source electrode of metal-oxide-semiconductor Q1 is connected with the drain electrode of electric capacity C3, metal-oxide-semiconductor Q2 respectively, the other end of electric capacity C3 is connected with one end of resonant inductance L1, the primary coil N of another termination Multiple coil high-tension transformer T1 of resonant inductance L1
0one end, the source electrode of metal-oxide-semiconductor Q3 respectively with the drain electrode of metal-oxide-semiconductor Q4, the primary coil N of Multiple coil high-tension transformer T1
0the other end be connected, the source electrode of metal-oxide-semiconductor Q2, the source electrode of metal-oxide-semiconductor Q4 all connect the negative pole of primary source, storage capacitor C1, C2 are all connected across between the drain electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2, the grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 all drives with MOSFET and the output of sampling voltage treatment circuit (2) is connected, and MOSFET drives and the input of sampling voltage treatment circuit (2) is connected with the output of voltage sample circuit (4).
3. the series-fed power supply of multi-level depressurization collector travelling wave tube according to claim 1, is characterized in that: described Multiple coil high-tension transformer T1 adopts high μ value ferrite or ultracrystalline magnetic core material, N number of secondary coil segmentation coiling.
4. the series-fed power supply of multi-level depressurization collector travelling wave tube according to claim 1, it is characterized in that: the structure of described N number of current rectifying and wave filtering circuit (3) is identical, current rectifying and wave filtering circuit (3) comprises rectifier diode V1, its negative electrode is connected with one end of the one secondary coil of Multiple coil high-tension transformer T1, its anode divides two-way to export, one tunnel is as the output negative terminal of current rectifying and wave filtering circuit (3), another road is connected with the anode of rectifier diode V3, the negative electrode of rectifier diode V3 respectively with the anode of rectifier diode V4, the other end of the one secondary coil of Multiple coil high-tension transformer T1 is connected, the negative electrode of rectifier diode V4 divides two-way to export, one tunnel is connected with the negative electrode of rectifier diode V2, another road is as the output plus terminal of current rectifying and wave filtering circuit (3), the anode of rectifier diode V2 is connected with the negative electrode of rectifier diode V1, high-voltage filtering capacitor C4, C5 is all connected across the output plus terminal of current rectifying and wave filtering circuit (3) and exports between negative terminal.
5. the series-fed power supply of multi-level depressurization collector travelling wave tube according to claim 1, it is characterized in that: described voltage sample circuit (4) is made up of N number of highvoltage resistance potential divider, each highvoltage resistance potential divider is by a high-pressure side resistance and a low-pressure end resistant series composition, 1st is connected with the negative electrode of travelling wave tube, a N-1 collector respectively to the high-pressure side resistance of N number of highvoltage resistance potential divider, and the 1st is all connected with the body of travelling wave tube to the low-pressure end resistance of N number of highvoltage resistance potential divider.
6. the series-fed power supply of multi-level depressurization collector travelling wave tube according to claim 2, it is characterized in that: described MOSFET drives and sampling voltage treatment circuit (2) comprises sampling voltage treatment circuit and collector sampling voltage acquisition cuicuit, sampling voltage treatment circuit comprises resistance R1, its one end is connected with the sampled signal output of voltage sample circuit (4), the other end is connected with 3 pin of emitter follower N1A, resistance R1 is by electric capacity C1 ground connection, 2 pin of emitter follower N1A are connected with its 1 pin, its 1 pin is connected with the input of reverse voltage amplifier by resistance R3, described sign-changing amplifier is by resistance R5, resistance R6, resistance R7 and amplifier N1B composition, resistance R3 is connected with 6 pin of amplifier N1B by resistance R5, 5 pin of amplifier N1B are by resistance R6 ground connection, resistance R7 is connected across 6 of amplifier N1B, on 7 pin, 7 pin of amplifier N1B are connected with one end of resistance R8, the other end of resistance R8 is as the output of sampling voltage treatment circuit, emitter follower N1A and amplifier N1B all adopts LM124 chip.
7. the series-fed power supply of multi-level depressurization collector travelling wave tube according to claim 6, it is characterized in that: described collector sampling voltage acquisition cuicuit comprises subtracter N2A, 2,3 pin access the output of sample voltage processing circuitry respectively by resistance R14, R13, its 3 pin is by resistance R15 ground connection, its 2 pin connects its 1 pin by resistance R16, its 4 pin connects+15V direct current, its 11 pin connects-15V direct current, its 1 pin is as the output of collector sampling voltage acquisition cuicuit, and subtracter N2A adopts LM124 chip.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108964473A (en) * | 2018-08-07 | 2018-12-07 | 中国航空工业集团公司雷华电子技术研究所 | A kind of high efficiency high voltage power supply translation circuit |
| CN109302065A (en) * | 2018-09-12 | 2019-02-01 | 合肥雷科电子科技有限公司 | A kind of millimeter wave traveling wave tube MPM power module |
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| CN104952675B (en) * | 2015-06-12 | 2017-04-05 | 中国电子科技集团公司第三十八研究所 | A kind of travelling-wave tube anode supply based on cathode high voltage power supply partial pressure |
| CN104952675A (en) * | 2015-06-12 | 2015-09-30 | 中国电子科技集团公司第三十八研究所 | Travelling wave tube anode power supply based on cathode high-voltage power supply voltage division |
| CN105141170A (en) * | 2015-09-18 | 2015-12-09 | 江苏同芯电气科技有限公司 | Long pulse large power high voltage power supply |
| CN105278609A (en) * | 2015-11-04 | 2016-01-27 | 中国船舶重工集团公司第七二三研究所 | Multi-stage voltage step-down collector traveling-wave tube high voltage feed circuit |
| CN105278609B (en) * | 2015-11-04 | 2017-07-11 | 中国船舶重工集团公司第七二三研究所 | A kind of multi-level depressurization collector travelling-wave tubes high-voltage feedback power circuit |
| CN107402323B (en) * | 2017-08-31 | 2023-08-04 | 成都四威功率电子科技有限公司 | Device and method for measuring spiral current of traveling wave tube |
| CN107402323A (en) * | 2017-08-31 | 2017-11-28 | 成都四威功率电子科技有限公司 | A kind of travelling-wave tubes helical current measuring device and method |
| CN108964473A (en) * | 2018-08-07 | 2018-12-07 | 中国航空工业集团公司雷华电子技术研究所 | A kind of high efficiency high voltage power supply translation circuit |
| CN109302065A (en) * | 2018-09-12 | 2019-02-01 | 合肥雷科电子科技有限公司 | A kind of millimeter wave traveling wave tube MPM power module |
| CN111835200A (en) * | 2019-04-16 | 2020-10-27 | 台达电子工业股份有限公司 | Power conversion device and control method |
| CN111835200B (en) * | 2019-04-16 | 2021-07-16 | 台达电子工业股份有限公司 | Power conversion device and control method |
| CN110764480A (en) * | 2019-11-01 | 2020-02-07 | 浙江阿尔郎科技有限公司 | Balance car control system and balance car |
| WO2022262413A1 (en) * | 2021-06-16 | 2022-12-22 | 华为技术有限公司 | Signal device, and method for adjusting collector voltage of traveling-wave tube of signal device |
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