CN101702864A - High-voltage power supply special for X-ray tube - Google Patents
High-voltage power supply special for X-ray tube Download PDFInfo
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- CN101702864A CN101702864A CN200910250211A CN200910250211A CN101702864A CN 101702864 A CN101702864 A CN 101702864A CN 200910250211 A CN200910250211 A CN 200910250211A CN 200910250211 A CN200910250211 A CN 200910250211A CN 101702864 A CN101702864 A CN 101702864A
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Abstract
The invention relates to a high-voltage power supply special for an X-ray tube, which is widely applied to various types of X-ray apparatuses in the aspects of medical diagnosis, nondestructive examination, public traffics, safety inspection, and the like in the fields of medical treatment, science education, industry, and the like. The high-voltage power supply comprises a power supply circuit sealed in a shell, wherein three connectors are welded on the power supply circuit, and the power supply circuit comprises a filament power supply circuit, a high-voltage control circuit and a high-voltage drive and output circuit; and the high-voltage control circuit is respectively connected with the filament power supply circuit and the high-voltage drive and output circuit. The high-voltage power supply has the advantages of low electromagnetic radiation, strong capacity of resisting disturbance, high-precision tube flow control, functions of power-on time delay and soft start, small temperature drift, good long-term stability, high reliability, compact structure, small outline size compared with contrasts, lighter weight and easy mounting.
Description
Technical field
The present invention relates to a kind of fields such as medical treatment, science and education, industry that are widely used in.As medical treatment diagnose a disease, X-ray tube high-voltage power supply special in all kinds X-ray machine instrument and equipment of aspect such as Non-Destructive Testing, public transport, safety inspection.
Background technology
The filament part of X-ray tube power source special adopts direct current output mostly, and the long-term work meeting reduces the X-ray tube burn-out life; Its high voltage control part adopts amplitude, pulse duration (duty ratio) or pulse frequency by control driven oscillator output square wave mostly, and then the power controlling switching tube, reaches purpose stable or that regulate output voltage.Because the control signal of switching tube is a square wave, its fast turn-on and turn-off can bring higher dv/dt and di/dt, it can produce more electromagnetic interference (EMI) on the one hand, power supply is polluted, the ripple of output voltage is increased and more difficult filtering thereupon, directly influence the accuracy of client complete machine check and analysis.Also some X-ray tube power supply, though improve at aspects such as EMI and output ripples, bulky, conversion efficiency is low, power supply is big from loss, the long-time stability of complete machine power supply and poor reliability.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides that a kind of circuit design is reasonable, the stable high X-ray tube high-voltage power supply special of reliability.
The present invention for achieving the above object, the technical scheme of being taked is: a kind of X-ray tube high-voltage power supply special, comprise the power circuit that is encapsulated in the housing, it is characterized in that: three connectors of the company of being welded with on the described power circuit, power circuit is made up of filament power supply circuits, high-voltage control circuit, high drive and output circuit three parts, and described high-voltage control circuit is connected with filament power supply circuits, high drive and output circuit respectively; The filament power supply circuits comprise: auxiliary circuit, oscillating circuit, current feedback circuit, protective circuit, filament voltage output circuit, judgement start-up circuit, current sample and display circuit, input power supply 24V+ one tunnel in the described auxiliary circuit connects electric capacity 1C1 positive pole, another road connects 1 pin of main control circuit FM, 2 pin and ground connection and the power supply 24V-of another termination main control circuit FM of electric capacity 1C1, the end of the anodal connecting resistance 1R8 of electric capacity 1C6 and 3 pin of main control circuit FM, the other end of electric capacity 1C6 negative pole connecting resistance 1R8 and 4 pin and the ground connection of main control circuit FM;
The end of resistance 1R9 in the described oscillating circuit connects the positive pole of electric capacity 1C6 in the end of inductance 1L1 and the auxiliary circuit respectively, 2 pin of another termination transformer 1T1 primary coil of inductance 1L1,1 pin of transformer 1T1 primary coil and the 3 pin triode 1Q1 that connects respectively in parallel with capacitor I C5, the collector electrode of triode 1Q2, difference connecting resistance 1R21 after triode 1Q1 links to each other with the emitter of triode 1Q2, resistance 1R22, the end of resistance 1R11, the other end of resistance 1R21 and resistance 1R22 connects the positive pole of diode 1D1 and diode 1D2 respectively, resistance 1R11 and electric capacity 1C7 one end in parallel ground connection, the negative pole of diode 1D1 connects triode 1Q1 base stage respectively, 5 pin of transformer 1T1 feedback coil Lp3 and the other end of resistance 1R9, the negative pole of diode 1D2 connects triode 1Q2 base stage respectively, 4 pin of transformer 1T1 feedback coil Lp3;
1 pin of amplifier 1U1A in the described current feedback circuit is connecting resistance 1R16 respectively, electric capacity 1C9, the end of resistance 1R13, the end of the other end connecting resistance 1R25 of resistance 1R16 also links to each other with 6 pin of main control circuit FM in the auxiliary circuit, the other end ground connection of resistance 1R25, the end of the 2 pin difference connecting resistance 1R29 of amplifier 1U1A and the other end of resistance 1R13, another termination capacitor of resistance 1R29 1C9 other end, 3 pin of amplifier 1U1A are connecting resistance 1R14 respectively, resistance 1R15, the end of electric capacity 1C8, the other end of resistance 1R15 and electric capacity 1C8 links to each other and ground connection, 3 pin of another termination potentiometer VR1 of resistance 1R14,1 pin of potentiometer 1VR1 is by resistance 1R35 ground connection, and 8 pin of amplifier 1U1A meet in-line power Vcc, 4 pin ground connection;
5 pin of amplifier 1U1B in described current sample and the display circuit meet electric capacity 1C11 respectively, resistance 1R19, the end of resistance 1R18, the other end of electric capacity 1C11 and resistance 1R19 links to each other and ground connection, the other end of resistance 1R18 connects the end of electric capacity 1C10 respectively, the negative pole of diode 1D3,7 pin of transformer 1T1 secondary coil Ls in the filament voltage output circuit, the other end of the positive pole of diode 1D3 and electric capacity 1C10 links to each other and ground connection, 6 pin of amplifier 1U1B are connecting resistance 1R28 respectively, the end of resistance 1R27, the other end of resistance 1R27 is by variable resistor 1TR1 ground connection, 7 pin of amplifier 1U1B meet electric capacity 1C15 respectively, resistance 1R26, the end of resistance 1R20 and the other end of resistance 1R28, the other end ground connection of electric capacity 1C15, another termination of resistance 1R20 shows output Iadis, 2 pin of amplifier 1U1A in the end of the other end difference connecting resistance 1R12 of resistance 1R26 and the current feedback circuit, the other end ground connection of resistance 1R12;
5 pin of amplifier 1U2B in the described protective circuit meet electric capacity 1C2 respectively, resistance 1R7, the end of resistance 1R17, the other end ground connection of electric capacity 1C2, the emitter of triode 1Q1 in another termination oscillating circuit of resistance 1R7,6 pin of amplifier 1U2B meet electric capacity 1C22 respectively, resistance 1R6, the end of resistance 1R5, the other end of electric capacity 1C22 and resistance 1R6 links to each other and ground connection, the other end difference connecting resistance 1R24 of resistance 1R5 and the end of variable resistor 1TR4, the other end of resistance 1R24 and variable resistor 1TR4 links to each other and meets reference voltage V ref, 7 pin of amplifier 1U2B connect the positive pole of electric capacity 1C3 respectively, the positive pole of diode 1D5 and diode 1D6, the other end of the negative pole connecting resistance 1R17 of electric capacity 1C3, the negative pole of diode 1D6 connects 5 pin of governor circuit FM in the positive pole of electric capacity 1C4 and the auxiliary circuit, the minus earth of electric capacity 1C4 respectively;
The end of the 2 pin connecting resistance 1R4 of amplifier 1U2A in the described judgement start-up circuit, the other end of resistance 1R4 is an end and the pipe pressure condition HVdis of connecting resistance 1R3 respectively, the other end ground connection of resistance 1R3,3 pin of amplifier 1U2A are connecting resistance 1R1 respectively, resistance 1R2, the end of electric capacity 1C20, the other end of resistance 1R2 and electric capacity 1C20 links to each other and ground connection, another termination reference voltage V ref of resistance 1R1,8 pin of amplifier 1U2A meet in-line power Vcc, 4 pin ground connection, the end of the 1 pin connecting resistance 1R34 of amplifier 1U2A, the other end of resistance 1R34 connects the end of electric capacity 1C17 and resistance 1R31 respectively, the end of resistance 1R33 and the base stage of triode 1Q3, the other end of electric capacity 1C17 and resistance 1R31 links to each other and ground connection, the negative pole of diode 1D5 in another termination protective circuit of resistance 1R33,3 pin of amplifier 1U3A connect the positive pole of diode 1D4 respectively, the positive pole of electric capacity 1C18, the end of the collector electrode of triode 1Q3 and resistance 1R32, another termination in-line power Vcc of resistance 1R32, the emitter of the negative pole of electric capacity 1C18 and triode 1Q3 links to each other and ground connection, 2 pin of amplifier 1U3A link to each other with 1 pin, 2 pin of potentiometer 1VR1 in the 1 pin difference connecting resistance 1R10 of amplifier 1U3A and the end of electric capacity 1C19 and the current feedback circuit, the other end ground connection of electric capacity 1C19, the other end of the 6 pin connecting resistance 1R10 of amplifier 1U3B, the end of the 5 pin connecting resistance 1R30 of amplifier 1U3B, another termination reference voltage V ref of resistance 1R30, simultaneously by electric capacity 1C16 ground connection, the 7 pin difference connecting resistance 1R23 of amplifier 1U3B and the end of electric capacity 1C14, the negative pole of diode 1D4, resistance 1R30 links to each other with the electric capacity 1C14 other end and ground connection, and 8 pin of amplifier 1U3A meet in-line power Vcc, 4 pin ground connection;
6 pin of transformer 1T1 secondary coil Ls in the described filament voltage output circuit connect the end of inductance 1L2, another termination filament output Vf1 of inductance 1L2, and 7 pin of secondary coil Ls meet filament output Vf2; Described high-voltage control circuit comprises: auxiliary circuit, voltage feedback circuit, pipe pressure condition testing circuit, protective circuit, starting or stopping control circuit, startup delay circuit and reference circuit;
The termination power input power supply 24V+ of insurance F in the described auxiliary circuit, its other end connects an end of inductance L 1 and the positive pole of diode D1 respectively, the negative pole of diode D1 connects 1 pin of voltage stabilizing chip U1, the 2 pin ground connection of voltage stabilizing chip U1,3 pin of voltage stabilizing chip U1 connect the positive pole of in-line power end Vcc and capacitor C 1 respectively, the minus earth of capacitor C 1, the other end of inductance L 1 connects 1 pin of main control circuit FM and the positive pole of capacitor C 2 respectively, the negative pole of capacitor C 2 links to each other with 2 pin of main control circuit FM and ground connection, 3 pin of main control circuit FM meet high drive power supply Ve, 4 pin ground connection, 5 pin and 6 pin are connecting resistance R8 respectively, one end of resistance R 55, one termination voltage sampled signal Uf of resistance R 9, the other end connects an end of capacitor C 9 and resistance R 10 and the negative pole of diode D2 respectively, the other end of the positive pole of diode D2 and capacitor C 9 links to each other and ground connection, the end of the other end connecting resistance R11 of resistance R 10;
The other end of resistance R 11 in the end of the 5 pin difference connecting resistance R12 of amplifier U2B in the described voltage feedback circuit and the auxiliary circuit, the other end ground connection of resistance R 12,6 pin of amplifier U2B are an end of connecting resistance R13, resistance R 15, resistance R 16 respectively, one end of another termination capacitor C 8 of resistance R 13, the other end of resistance R 15 links to each other with 1 pin of potentiometer VR1 and ground connection, 3 pin of another termination potentiometer VR1 of resistance R 16,7 pin of amplifier U2B connect the other end of capacitor C 8 and the positive pole of diode D3 respectively;
1 pin of amplifier U2A in the described pipe pressure condition testing circuit connects 2 pin of amplifier U2A and an end of resistance R 21 respectively, the other end of resistance R 21 is taken over an end of pressure condition HVdis and capacitor C 12 respectively, the other end ground connection of capacitor C 12,3 pin of amplifier U2A connect capacitor C 33 respectively, capacitor C 22, one end of resistance R 18, the other end of capacitor C 33 and capacitor C 22 links to each other and ground connection, the other end of resistance R 18 is connecting resistance R19 respectively, capacitor C 10, one end of resistance R 17, the other end ground connection of capacitor C 10, the other end of resistance R 17 is taken over pressure condition and is detected sampled signal Ud, the other end of resistance R 19 connects 2 pin of potentiometer TR1 and an end of resistance R 20 respectively, the other end ground connection of resistance R 20,3 pin of potentiometer TR1 link to each other with 1 pin and ground connection, and 8 pin of amplifier U2A meet in-line power Vcc, 4 pin ground connection;
1 pin of amplifier U3A in the described protective circuit is connecting resistance R53 respectively, capacitor C 31, one end of resistance R 54 and the positive pole of diode D10, the negative pole of diode D10 connects the other end of resistance R 55 in the auxiliary circuit, the end of the other end connecting resistance R37 of resistance R 54,3 pin of amplifier U3A are by resistance R 49 ground connection, 2 pin of amplifier U3A are the other end of connecting resistance R53 respectively, the other end of capacitor C 31, one end of resistance R 51 and resistance R 52, the end of the other end difference connecting resistance R34 of resistance R 51 and 1 pin of potentiometer VR1,3 pin of potentiometer VR1 connect 2 pin of VR1, link to each other with the other end of resistance R 34 and meet reference voltage V ref, the other end of resistance R 52 connects capacitor C 19 respectively, resistance R 41, one end of resistance R 40, the other end of resistance R 41 connects an end of capacitor C 18 respectively, the positive pole of diode D14 and high-pressure and overflowing sampled signal Ib, capacitor C 19, resistance R 40, the other end of capacitor C 18 links to each other with the negative pole of diode D14 and ground connection, 5 pin of amplifier U3B connect the positive pole of capacitor C 32 respectively, the negative pole of diode D5, one end of resistance R 44, the other end of resistance R 37, operating current detection signal Ie in high drive and the output, the minus earth of the other end of resistance R 44 and capacitor C 32, the end of the anodal connecting resistance R38 of diode D5,7 pin of amplifier U3B are the other end of connecting resistance R38 respectively, the positive pole of diode D12 and diode D11, the negative pole of diode D11 connects the positive pole of diode D13, the negative pole of diode D13 connects the other end of resistance R 8 in the auxiliary circuit, 6 pin of amplifier U3B connect capacitor C 27 respectively, resistance R 35, one end of resistance R 34, the other end ground connection of resistance R 35 and capacitor C 27, the other end of resistance R 34 is connecting resistance R43 respectively, the end of variable resistor TR3, resistance R 43, the other end of variable resistor TR3 links to each other and meets reference voltage V ref, and 8 pin of amplifier U3A meet in-line power Vcc, 4 pin ground connection;
One termination start and stop control signal R/S of the resistance R 32 in the described starting or stopping control circuit, the other end of resistance R 32 is connecting resistance R33 and an end of capacitor C 26 and the base stage of triode Q7 respectively, the other end of resistance R 33 and capacitor C 26 links to each other with the emitter of triode Q7 and ground connection, the collector electrode of triode Q7 is the end of connecting resistance R31 respectively, the positive pole of diode D6 and diode D7, another termination in-line power end Vcc of resistance R 31, the negative pole of diode D6 is the end of connecting resistance R39 respectively, the positive pole of capacitor C 30, the negative pole of diode D11 in the protective circuit, the other end of resistance R 39 link to each other with the negative pole of capacitor C 30 and ground connection;
The control utmost point connecting resistance R22 of adjustable reference source U5 in the described reference circuit, an end of resistance R 23, one end of the adjustable reference source U5 anode connecting resistance R23 other end, capacitor C 13 and ground, the negative electrode connecting resistance R22 of adjustable reference source U5, the other end of capacitor C 13, an and end of resistance R 48 and as reference voltage output end Vref, another termination in-line power end Vcc of resistance R 48;
1 pin of amplifier U4A in the described startup delay circuit links to each other with 2 pin and connects an end of capacitor C 17 and resistance R 25 respectively, 2 pin of potentiometer VR1 in the voltage feedback circuit, the other end ground connection of capacitor C 17,3 pin of amplifier U4A are the end of connecting resistance R59 respectively, the positive pole of diode D4 and capacitor C 16, the collector electrode of triode Q5, another termination in-line power end Vcc of resistance R 29, the negative pole of capacitor C 16 connects the emitter of triode Q5 respectively, one end and the ground connection of capacitor C 15 and resistance R 28, the end of the other end connecting resistance R27 of resistance R 28 and capacitor C 15 and the base stage of triode Q5, the other end of resistance R 27 connects in the start-up control circuit negative pole of diode D12 in the diode D7 negative pole and protective circuit respectively, the end of the 5 pin connecting resistance R24 of amplifier U4B, the negative electrode of adjustable reference source U5 in another termination reference circuit of resistance R 24, the other end of the 6 pin connecting resistance R25 of amplifier U4B, 7 pin of amplifier U4B connect the negative pole of diode D4 respectively, one end of capacitor C 14 and resistance R 26, the other end of capacitor C 14 and resistance R 26 links to each other and ground connection, and 8 pin of amplifier U4A meet in-line power end Vcc, 4 pin ground connection; Described high drive and output circuit comprise: auxiliary circuit, oscillating circuit, voltage sampling circuit, voltage doubling rectifing circuit and filter circuit,
The positive pole of one termination capacitor C16 of the resistance R 10 in the described auxiliary circuit and high drive power supply Ve, the negative pole and the ground connection of another termination capacitor C 16 of resistance R 10, the end of one termination capacitor C18 of resistance R 13 and as operating current detection signal end Ie, the other end of resistance R 13 and capacitor C 18 links to each other and ground connection, one end of resistance R 9 detects sampled signal end Ud as the pipe pressure condition, the end of other end connecting resistance R3, the other end of resistance R 3 meets high-voltage output end HV by resistance R 4, resistance R 5, resistance R 6, resistance R 7;
The positive pole of capacitor C 16 in the one termination auxiliary circuit of the inductance L 1 in the described oscillating circuit, the other end difference connecting resistance R11 of inductance L 1 and an end of resistance R 12,2 pin of transformer TRF primary coil, 1 pin of primary coil and primary coil 3 pin meet triode T1 respectively, the collector electrode of triode T2, the collector electrode of one termination triode T1 of capacitor C 17, the collector electrode of another termination triode T2, triode T1 with meet operating current detection signal end Ie in the auxiliary circuit after the emitter of triode T2 links to each other, the base stage of another termination triode T1 of resistance R 11 and 5 pin of transformer TRF feedback coil Lp3, the base stage of another termination triode T2 of resistance R 12 and 4 pin of transformer TRF feedback coil Lp3;
The end of one termination capacitor C15 of the resistance R 8 in the described voltage sampling circuit and as voltage sampling signal end Uf, the other end of capacitor C 15 by capacitor C 14 and capacitor C 13 connecting resistance R8 the other end and link to each other with an end of resistance R 3 and resistance R 9 in the auxiliary circuit;
Described voltage doubling rectifing circuit, 6 pin of one termination transformer TRF secondary coil of the capacitor C 1 in the filter circuit, the other end connects an end of capacitor C 2 respectively, the positive pole of the negative pole of diode D1 and diode D2, the other end of capacitor C 2 connects an end of capacitor C 3 respectively, the positive pole of the negative pole of diode D3 and diode D4, the other end of capacitor C 3 connects an end of capacitor C 4 respectively, the positive pole of the negative pole of diode D5 and diode D6, the other end of capacitor C 4 connects an end of capacitor C 5 respectively, the positive pole of the negative pole of diode D7 and diode D8, the other end of capacitor C 5 connects the negative pole of diode D9 and the positive pole of diode D10 respectively, one end of capacitor C 6 connects 7 pin of transformer TRF secondary coil respectively, the positive pole of diode D1, one end of capacitor C 11 and capacitor C 12 and as high-pressure and overflowing signal connection end Ib, the other end of capacitor C 6 connects an end of capacitor C 7 respectively, the positive pole of the negative pole of diode D2 and diode D3, the other end of capacitor C 7 connects an end of capacitor C 8 respectively, the positive pole of the negative pole of diode D4 and diode D5, the other end of capacitor C 8 connects an end of capacitor C 9 respectively, the positive pole of the negative pole of diode D6 and diode D7, the other end of capacitor C 9 connects an end of capacitor C 10 respectively, the positive pole of the negative pole of diode D8 and diode D9, the other end of capacitor C 10 connects the negative pole of diode D10 and the negative pole of diode D11 respectively, 1 negative pole of one terminating diode D1 of resistance R 1, the other end of resistance R 1 connects the positive pole of diode D11 respectively, the negative pole of diode D12, one end of resistance R 2 and the other end of capacitor C 11, the other end of resistance R 2 connects the positive pole of diode D12 respectively, an end of resistance R 3 in the other end of capacitor C 12 and the auxiliary circuit.
The invention has the beneficial effects as follows: electromagnetic radiation is low, and antijamming capability is strong; High-precision pipe current control; Have start time-delay and soft start function; Temperature is floated little, and long-time stability are good, the reliability height; Compact integral structure, overall dimension is little on year-on-year basis, and weight is lighter, is easy to install.
Description of drawings
Fig. 1 is a panel construction schematic diagram of the present invention.
Fig. 2 is a rear panel structure schematic diagram of the present invention.
Fig. 3 is that circuit of the present invention connects block diagram and as Figure of abstract.
Fig. 4 is a filament power supply circuits schematic diagram of the present invention.
Fig. 5 is a high-voltage control circuit schematic diagram of the present invention.
Fig. 6 is high drive of the present invention and output circuit schematic diagram.
Embodiment
Shown in Fig. 1,2,3,4,5,6, X-ray tube high-voltage power supply special (DWX-P403-02FD4), comprise the power circuit of installing and being encapsulated in the housing, be welded with connector 1, connector 2, connector 3 on the power circuit, power circuit is made up of filament power supply circuits, high-voltage control circuit, high drive and output circuit three parts, high-voltage control circuit is connected with filament power supply circuits, high drive and output circuit respectively, and filament power supply circuits, high drive and output circuit are connected with the X-ray tube load respectively; Filament partly comprises auxiliary circuit, oscillating circuit, current feedback circuit, protective circuit, filament voltage output circuit, judges start-up circuit, current sample and display circuit; High voltage control partly comprises auxiliary circuit, voltage feedback circuit, pipe pressure condition testing circuit, protective circuit, starting or stopping control circuit, startup delay circuit and reference circuit; Described high drive and output comprise auxiliary circuit, oscillating circuit, voltage sampling circuit, voltage doubling rectifing circuit and filter circuit.
The main drive controlling of filament supply and high voltage source all adopts resonant transform circuit, the linear voltage regulation mode.Match under the rational condition in parameter, reduce dv/dt and di/dt greatly, the waveform of this circuit is stable and do not have high order harmonic component, can reduce EMI and output ripple well.
The filament power supply is adopted and is exchanged output, can prolong the X-ray tube burn-out life.
The control of high voltage source and output adopt space physics to isolate, and the shielding high pressure is to the interference of its control section and filament power supply; Multiple-stage filtering is adopted in high pressure output simultaneously, reduces output noise.
Guarantee to import, export, the independent pathway between each ground of control etc.; Rational PCB layout; Good transformer production method; Select that low noise, low temperature float, the components and parts of high stability for use; Insulation processing well; Improve the ground circuit structure design, ensure the long-time stability and the reliability of complete machine power supply.
Filament, high voltage source integrated design, complete machine power supply sampling metal shell, and, good electromagnetic shielding action is arranged with frame ground, improve the antijamming capability of power supply.
Operation principle: filament power pack such as Fig. 4: input voltage 24V+ is added to the LC resonant circuit of being made up of transformer 1L1, electric capacity 1C5, triode 1Q1, triode 1Q2, primary coil Lp1, Lp2 and feedback coil Lp3 (oscillating circuit) by main control circuit FM.The high frequency ac signal that its produces is coupled to by transformer 1T1 that it is secondary, and the alternating voltage that produces on transformer 1L1 secondary coil Ls is exported as filament voltage by inductance 1L2.
By the current sampling circuit of being made up of resistance 1R18, resistance 1R19, electric capacity 1C10, diode 1D3 and electric capacity 1C11, the tube current sampled signal of the X-ray tube of acquisition is after the amplification by 1U1B etc., on the one hand as the demonstration output of tube current; Current feedback circuit by being made up of amplifier 1U1A etc. is delivered to the Ifc end of main control circuit FM, and then is regulated the output of controlling filament voltage on the other hand.
The input current sampled signal that obtains from resistance 1R11, by the protective circuit of being made up of amplifier 1U2B etc., the OCP that delivers to main control circuit FM holds, and makes input current not exceed limited range, plays a protective role.
In addition, the high pressure conditions signal, by the decision circuit of forming by amplifier 1U2A etc., remove to control the delayed startup circuit of forming by amplifier 1U3A, amplifier 1U3B, electric capacity 1C18, resistance 1R32 etc., the output of start-up circuit is after dividing potential drop, by the given signal of potentiometer 1VR1, give current feedback circuit as the X-ray tube tube current.
High voltage control part as Fig. 5: input voltage 24V+ is leaded up to diode D1, and to integrated voltage stabilizing chip U1, cc is as internal power supply for its output voltage V; Export after by inductance L 1 and main control circuit FM on another road, as the power supply Ve of drive circuit in high drive and the output.
Voltage Feedback sampled signal Uf as high pressure output, by resistance R 9, resistance R 10, resistance R 11 and the voltage feedback circuit formed by amplifier U2B etc., deliver to the Vfc end of main control circuit FM, constitute closed loop feedback, pipe by potentiometer VR1 is pressed given, go to control, regulate the size of the power supply Ve of high-voltage driving circuit, and then control valve is pressed output.
Sampled signal Ud as the pipe pressure condition detects by the voltage status testing circuit of being made up of amplifier U2A, resistance R 19, resistance R 20, potentiometer TR1 etc., exports high pressure conditions detected value HVdis, and is sent to the judgement start-up circuit in the filament power supply.
The operating current detection signal Ie that from high-voltage driving circuit, obtains and the sampled signal of high pressure output current; equal protective circuits by forming by amplifier U3A, amplifier U3B etc.; deliver to OCP end and the Ifc end of main control circuit FM respectively; make the maximum of each electric current obtain restriction, thereby play a protective role.
Start stop signal R/S by the starting or stopping control circuit of being made up of triode Q7, resistance R 31, resistance R 32, resistance R 33 etc., removes to control the startup delay circuit of being made up of amplifier U4A, amplifier U4B, resistance R 29, capacitor C 16 etc.The output of this delay circuit is as the benchmark of the given signal of voltage feedback circuit; The reference voltage of the reference circuit output of being made up of diode U5, capacitor C 13, resistance R 48, resistance R 22, resistance R 23 is simultaneously given respectively and is started during delay circuit and filament power.
High drive and output such as Fig. 6: the power supply Ve of drive circuit is added to the LC resonant circuit of being made up of inductance L 1, capacitor C 17, triode T1, triode T2, transformer TRF primary coil Lp1, transformer TRF primary coil Lp2 and feedback coil Lp3 (oscillating circuit 2).The high frequency ac signal that it produces, be coupled to by transformer TRF that it is secondary, the alternating voltage that on secondary coil Ls, produces, by ten voltage doubling rectifing circuits of forming by capacitor C 1～capacitor C 10 and diode D1～diode D10, then behind the current-limiting resistance of forming by the filter circuit formed by resistance R 1, resistance R 2, capacitor C 11, capacitor C 12, diode D11, diode D12 and by resistance R 3～R7, arrival high-voltage output end HV.Respectively by capacitor C 13, capacitor C 14, capacitor C 15, resistance R 8 and resistance R 9, with high pressure feedback sample signal Uf, and high pressure conditions detection sampled signal Ud delivers to the high voltage control part simultaneously.
Claims (2)
1. X-ray tube high-voltage power supply special, comprise the power circuit that is encapsulated in the housing, it is characterized in that: be welded with connector (1), connector (2), connector (3) on the described power circuit, power circuit is made up of filament power supply circuits, high-voltage control circuit, high drive and output circuit three parts, and described high-voltage control circuit is connected with filament power supply circuits, high drive and output circuit respectively;
The filament power supply circuits comprise: auxiliary circuit, oscillating circuit, current feedback circuit, protective circuit, filament voltage output circuit, judgement start-up circuit, current sample and display circuit, input power supply 24V+ one tunnel in the described auxiliary circuit connects electric capacity 1C1 positive pole, another road connects 1 pin of main control circuit FM, 2 pin and ground connection and the power supply 24V-of another termination main control circuit FM of electric capacity 1C1, the end of the anodal connecting resistance 1R8 of electric capacity 1C6 and 3 pin of main control circuit FM, the other end of electric capacity 1C6 negative pole connecting resistance 1R8 and 4 pin and the ground connection of main control circuit FM;
The end of resistance 1R9 in the described oscillating circuit connects the positive pole of electric capacity 1C6 in the end of inductance 1L1 and the auxiliary circuit respectively, 2 pin of another termination transformer 1T1 primary coil of inductance 1L1,1 pin of transformer 1T1 primary coil and the 3 pin triode 1Q1 that connects respectively in parallel with capacitor I C5, the collector electrode of triode 1Q2, difference connecting resistance 1R21 after triode 1Q1 links to each other with the emitter of triode 1Q2, resistance 1R22, the end of resistance 1R11, the other end of resistance 1R21 and resistance 1R22 connects the positive pole of diode 1D1 and diode 1D2 respectively, resistance 1R11 and electric capacity 1C7 one end in parallel ground connection, the negative pole of diode 1D1 connects triode 1Q1 base stage respectively, 5 pin of transformer 1T1 feedback coil Lp3 and the other end of resistance 1R9, the negative pole of diode 1D2 connects triode 1Q2 base stage respectively, 4 pin of transformer 1T1 feedback coil Lp3;
1 pin of amplifier 1U1A in the described current feedback circuit is connecting resistance 1R16 respectively, electric capacity 1C9, the end of resistance 1R13, the end of the other end connecting resistance 1R25 of resistance 1R16 also links to each other with 6 pin of main control circuit FM in the auxiliary circuit, the other end ground connection of resistance 1R25, the end of the 2 pin difference connecting resistance 1R29 of amplifier 1U1A and the other end of resistance 1R13, another termination capacitor of resistance 1R29 1C9 other end, 3 pin of amplifier 1U1A are connecting resistance 1R14 respectively, resistance 1R15, the end of electric capacity 1C8, the other end of resistance 1R15 and electric capacity 1C8 links to each other and ground connection, 3 pin of another termination potentiometer VR1 of resistance 1R14,1 pin of potentiometer 1VR1 is by resistance 1R35 ground connection, and 8 pin of amplifier 1U1A meet in-line power Vcc, 4 pin ground connection;
5 pin of amplifier 1U1B in described current sample and the display circuit meet electric capacity 1C11 respectively, resistance 1R19, the end of resistance 1R18, the other end of electric capacity 1C11 and resistance 1R19 links to each other and ground connection, the other end of resistance 1R18 connects the end of electric capacity 1C10 respectively, the negative pole of diode 1D3,7 pin of transformer 1T1 secondary coil Ls in the filament voltage output circuit, the other end of the positive pole of diode 1D3 and electric capacity 1C10 links to each other and ground connection, 6 pin of amplifier 1U1B are connecting resistance 1R28 respectively, the end of resistance 1R27, the other end of resistance 1R27 is by variable resistor 1TR1 ground connection, 7 pin of amplifier 1U1B meet electric capacity 1C15 respectively, resistance 1R26, the end of resistance 1R20 and the other end of resistance 1R28, the other end ground connection of electric capacity 1C15, another termination of resistance 1R20 shows output Iadis, 2 pin of amplifier 1U1A in the end of the other end difference connecting resistance 1R12 of resistance 1R26 and the current feedback circuit, the other end ground connection of resistance 1R12;
5 pin of amplifier 1U2B in the described protective circuit meet electric capacity 1C2 respectively, resistance 1R7, the end of resistance 1R17, the other end ground connection of electric capacity 1C2, the emitter of triode 1Q1 in another termination oscillating circuit of resistance 1R7,6 pin of amplifier 1U2B meet electric capacity 1C22 respectively, resistance 1R6, the end of resistance 1R5, the other end of electric capacity 1C22 and resistance 1R6 links to each other and ground connection, the other end difference connecting resistance 1R24 of resistance 1R5 and the end of variable resistor 1TR4, the other end of resistance 1R24 and variable resistor 1TR4 links to each other and meets reference voltage V ref, 7 pin of amplifier 1U2B connect the positive pole of electric capacity 1C3 respectively, the positive pole of diode 1D5 and diode 1D6, the other end of the negative pole connecting resistance 1R17 of electric capacity 1C3, the negative pole of diode 1D6 connects 5 pin of governor circuit FM in the positive pole of electric capacity 1C4 and the auxiliary circuit, the minus earth of electric capacity 1C4 respectively;
The end of the 2 pin connecting resistance 1R4 of amplifier 1U2A in the described judgement start-up circuit, the other end of resistance 1R4 is an end and the pipe pressure condition HVdis of connecting resistance 1R3 respectively, the other end ground connection of resistance 1R3,3 pin of amplifier 1U2A are connecting resistance 1R1 respectively, resistance 1R2, the end of electric capacity 1C20, the other end of resistance 1R2 and electric capacity 1C20 links to each other and ground connection, another termination reference voltage V ref of resistance 1R1,8 pin of amplifier 1U2A meet in-line power Vcc, 4 pin ground connection, the end of the 1 pin connecting resistance 1R34 of amplifier 1U2A, the other end of resistance 1R34 connects the end of electric capacity 1C17 and resistance 1R31 respectively, the end of resistance 1R33 and the base stage of triode 1Q3, the other end of electric capacity 1C17 and resistance 1R31 links to each other and ground connection, the negative pole of diode 1D5 in another termination protective circuit of resistance 1R33,3 pin of amplifier 1U3A connect the positive pole of diode 1D4 respectively, the positive pole of electric capacity 1C18, the end of the collector electrode of triode 1Q3 and resistance 1R32, another termination in-line power Vcc of resistance 1R32, the emitter of the negative pole of electric capacity 1C18 and triode 1Q3 links to each other and ground connection, 2 pin of amplifier 1U3A link to each other with 1 pin, 2 pin of potentiometer 1VR1 in the 1 pin difference connecting resistance 1R10 of amplifier 1U3A and the end of electric capacity 1C19 and the current feedback circuit, the other end ground connection of electric capacity 1C19, the other end of the 6 pin connecting resistance 1R10 of amplifier 1U3B, the end of the 5 pin connecting resistance 1R30 of amplifier 1U3B, another termination reference voltage V ref of resistance 1R30, simultaneously by electric capacity 1C16 ground connection, the 7 pin difference connecting resistance 1R23 of amplifier 1U3B and the end of electric capacity 1C14, the negative pole of diode 1D4, resistance 1R30 links to each other with the electric capacity 1C14 other end and ground connection, and 8 pin of amplifier 1U3A meet in-line power Vcc, 4 pin ground connection;
6 pin of transformer 1T1 secondary coil Ls in the described filament voltage output circuit connect the end of inductance 1L2, another termination filament output Vf1 of inductance 1L2, and 7 pin of secondary coil Ls meet filament output Vf2; Described high-voltage control circuit comprises: auxiliary circuit, voltage feedback circuit, pipe pressure condition testing circuit, protective circuit, starting or stopping control circuit, startup delay circuit and reference circuit,
The termination power input power supply 24V+ of insurance F in the described auxiliary circuit, its other end connects an end of inductance L 1 and the positive pole of diode D1 respectively, the negative pole of diode D1 connects 1 pin of voltage stabilizing chip U1, the 2 pin ground connection of voltage stabilizing chip U1,3 pin of voltage stabilizing chip U1 connect the positive pole of in-line power end Vcc and capacitor C 1 respectively, the minus earth of capacitor C 1, the other end of inductance L 1 connects 1 pin of main control circuit FM and the positive pole of capacitor C 2 respectively, the negative pole of capacitor C 2 links to each other with 2 pin of main control circuit FM and ground connection, 3 pin of main control circuit FM meet high drive power supply Ve, 4 pin ground connection, 5 pin and 6 pin are connecting resistance R8 respectively, one end of resistance R 55, one termination voltage sampled signal Uf of resistance R 9, the other end connects an end of capacitor C 9 and resistance R 10 and the negative pole of diode D2 respectively, the other end of the positive pole of diode D2 and capacitor C 9 links to each other and ground connection, the end of the other end connecting resistance R11 of resistance R 10;
The other end of resistance R 11 in the end of the 5 pin difference connecting resistance R12 of amplifier U2B in the described voltage feedback circuit and the auxiliary circuit, the other end ground connection of resistance R 12,6 pin of amplifier U2B are an end of connecting resistance R13, resistance R 15, resistance R 16 respectively, one end of another termination capacitor C 8 of resistance R 13, the other end of resistance R 15 links to each other with 1 pin of potentiometer VR1 and ground connection, 3 pin of another termination potentiometer VR1 of resistance R 16,7 pin of amplifier U2B connect the other end of capacitor C 8 and the positive pole of diode D3 respectively;
1 pin of amplifier U2A in the described pipe pressure condition testing circuit connects 2 pin of amplifier U2A and an end of resistance R 21 respectively, the other end of resistance R 21 is taken over an end of pressure condition HVdis and capacitor C 12 respectively, the other end ground connection of capacitor C 12,3 pin of amplifier U2A connect capacitor C 33 respectively, capacitor C 22, one end of resistance R 18, the other end of capacitor C 33 and capacitor C 22 links to each other and ground connection, the other end of resistance R 18 is connecting resistance R19 respectively, capacitor C 10, one end of resistance R 17, the other end ground connection of capacitor C 10, the other end of resistance R 17 is taken over pressure condition and is detected sampled signal Ud, the other end of resistance R 19 connects 2 pin of potentiometer TR1 and an end of resistance R 20 respectively, the other end ground connection of resistance R 20,3 pin of potentiometer TR1 link to each other with 1 pin and ground connection, and 8 pin of amplifier U2A meet in-line power Vcc, 4 pin ground connection; 1 pin of amplifier U3A in the described protective circuit is connecting resistance R53 respectively, capacitor C 31, one end of resistance R 54 and the positive pole of diode D10, the negative pole of diode D10 connects the other end of resistance R 55 in the auxiliary circuit, the end of the other end connecting resistance R37 of resistance R 54,3 pin of amplifier U3A are by resistance R 49 ground connection, 2 pin of amplifier U3A are the other end of connecting resistance R53 respectively, the other end of capacitor C 31, one end of resistance R 51 and resistance R 52, the end of the other end difference connecting resistance R34 of resistance R 51 and 1 pin of potentiometer VR1,3 pin of potentiometer VR1 connect 2 pin of VR1, link to each other with the other end of resistance R 34 and meet reference voltage V ref, the other end of resistance R 52 connects capacitor C 19 respectively, resistance R 41, one end of resistance R 40, the other end of resistance R 41 connects an end of capacitor C 18 respectively, the positive pole of diode D14 and high-pressure and overflowing sampled signal Ib, capacitor C 19, resistance R 40, the other end of capacitor C 18 links to each other with the negative pole of diode D14 and ground connection, 5 pin of amplifier U3B connect the positive pole of capacitor C 32 respectively, the negative pole of diode D5, one end of resistance R 44, the other end of resistance R 37, operating current detection signal Ie in high drive and the output, the minus earth of the other end of resistance R 44 and capacitor C 32, the end of the anodal connecting resistance R38 of diode D5,7 pin of amplifier U3B are the other end of connecting resistance R38 respectively, the positive pole of diode D12 and diode D11, the negative pole of diode D11 connects the positive pole of diode D13, the negative pole of diode D13 connects the other end of resistance R 8 in the auxiliary circuit, 6 pin of amplifier U3B connect capacitor C 27 respectively, resistance R 35, one end of resistance R 34, the other end ground connection of resistance R 35 and capacitor C 27, the other end of resistance R 34 is connecting resistance R43 respectively, the end of variable resistor TR3, resistance R 43, the other end of variable resistor TR3 links to each other and meets reference voltage V ref, and 8 pin of amplifier U3A meet in-line power Vcc, 4 pin ground connection;
One termination start and stop control signal R/S of the resistance R 32 in the described starting or stopping control circuit, the other end of resistance R 32 is connecting resistance R33 and an end of capacitor C 26 and the base stage of triode Q7 respectively, the other end of resistance R 33 and capacitor C 26 links to each other with the emitter of triode Q7 and ground connection, the collector electrode of triode Q7 is the end of connecting resistance R31 respectively, the positive pole of diode D6 and diode D7, another termination in-line power end Vcc of resistance R 31, the negative pole of diode D6 is the end of connecting resistance R39 respectively, the positive pole of capacitor C 30, the negative pole of diode D11 in the protective circuit, the other end of resistance R 39 link to each other with the negative pole of capacitor C 30 and ground connection;
The control utmost point connecting resistance R22 of adjustable reference source U5 in the described reference circuit, an end of resistance R 23, one end of the adjustable reference source U5 anode connecting resistance R23 other end, capacitor C 13 and ground, the negative electrode connecting resistance R22 of adjustable reference source U5, the other end of capacitor C 13, an and end of resistance R 48 and as reference voltage output end Vref, another termination in-line power end Vcc of resistance R 48;
1 pin of amplifier U4A in the described startup delay circuit links to each other with 2 pin and connects an end of capacitor C 17 and resistance R 25 respectively, 2 pin of potentiometer VR1 in the voltage feedback circuit, the other end ground connection of capacitor C 17,3 pin of amplifier U4A are the end of connecting resistance R59 respectively, the positive pole of diode D4 and capacitor C 16, the collector electrode of triode Q5, another termination in-line power end Vcc of resistance R 29, the negative pole of capacitor C 16 connects the emitter of triode Q5 respectively, one end and the ground connection of capacitor C 15 and resistance R 28, the end of the other end connecting resistance R27 of resistance R 28 and capacitor C 15 and the base stage of triode Q5, the other end of resistance R 27 connects in the start-up control circuit negative pole of diode D12 in the diode D7 negative pole and protective circuit respectively, the end of the 5 pin connecting resistance R24 of amplifier U4B, the negative electrode of adjustable reference source U5 in another termination reference circuit of resistance R 24, the other end of the 6 pin connecting resistance R25 of amplifier U4B, 7 pin of amplifier U4B connect the negative pole of diode D4 respectively, one end of capacitor C 14 and resistance R 26, the other end of capacitor C 14 and resistance R 26 links to each other and ground connection, and 8 pin of amplifier U4A meet in-line power end Vcc, 4 pin ground connection; Described high drive and output circuit comprise: auxiliary circuit, oscillating circuit, voltage sampling circuit, voltage doubling rectifing circuit and filter circuit,
The positive pole of one termination capacitor C16 of the resistance R 10 in the described auxiliary circuit and high drive power supply Ve, the negative pole and the ground connection of another termination capacitor C 16 of resistance R 10, the end of one termination capacitor C18 of resistance R 13 and as operating current detection signal end Ie, the other end of resistance R 13 and capacitor C 18 links to each other and ground connection, one end of resistance R 9 detects sampled signal end Ud as the pipe pressure condition, the end of other end connecting resistance R3, the other end of resistance R 3 meets high-voltage output end HV by resistance R 4, resistance R 5, resistance R 6, resistance R 7;
The positive pole of capacitor C 16 in the one termination auxiliary circuit of the inductance L 1 in the described oscillating circuit, the other end difference connecting resistance R11 of inductance L 1 and an end of resistance R 12,2 pin of transformer TRF primary coil, 1 pin of primary coil and primary coil 3 pin meet triode T1 respectively, the collector electrode of triode T2, the collector electrode of one termination triode T1 of capacitor C 17, the collector electrode of another termination triode T2, triode T1 with meet operating current detection signal end Ie in the auxiliary circuit after the emitter of triode T2 links to each other, the base stage of another termination triode T1 of resistance R 11 and 5 pin of transformer TRF feedback coil Lp3, the base stage of another termination triode T2 of resistance R 12 and 4 pin of transformer TRF feedback coil Lp3; The end of one termination capacitor C15 of the resistance R 8 in the described voltage sampling circuit and as voltage sampling signal end Uf, the other end of capacitor C 15 by capacitor C 14 and capacitor C 13 connecting resistance R8 the other end and link to each other with an end of resistance R 3 and resistance R 9 in the auxiliary circuit;
Described voltage doubling rectifing circuit, 6 pin of one termination transformer TRF secondary coil of the capacitor C 1 in the filter circuit, the other end connects an end of capacitor C 2 respectively, the positive pole of the negative pole of diode D1 and diode D2, the other end of capacitor C 2 connects an end of capacitor C 3 respectively, the positive pole of the negative pole of diode D3 and diode D4, the other end of capacitor C 3 connects an end of capacitor C 4 respectively, the positive pole of the negative pole of diode D5 and diode D6, the other end of capacitor C 4 connects an end of capacitor C 5 respectively, the positive pole of the negative pole of diode D7 and diode D8, the other end of capacitor C 5 connects the negative pole of diode D9 and the positive pole of diode D10 respectively, one end of capacitor C 6 connects 7 pin of transformer TRF secondary coil respectively, the positive pole of diode D1, one end of capacitor C 11 and capacitor C 12 and as high-pressure and overflowing signal connection end Ib, the other end of capacitor C 6 connects an end of capacitor C 7 respectively, the positive pole of the negative pole of diode D2 and diode D3, the other end of capacitor C 7 connects an end of capacitor C 8 respectively, the positive pole of the negative pole of diode D4 and diode D5, the other end of capacitor C 8 connects an end of capacitor C 9 respectively, the positive pole of the negative pole of diode D6 and diode D7, the other end of capacitor C 9 connects an end of capacitor C 10 respectively, the positive pole of the negative pole of diode D8 and diode D9, the other end of capacitor C 10 connects the negative pole of diode D10 and the negative pole of diode D11 respectively, the negative pole of one terminating diode D11 of resistance R 1, the other end of resistance R 1 connects the positive pole of diode D11 respectively, the negative pole of diode D12, one end of resistance R 2 and the other end of capacitor C 11, the other end of resistance R 2 connects the positive pole of diode D12 respectively, an end of resistance R 3 in the other end of capacitor C 12 and the auxiliary circuit.
2. X-ray tube high-voltage power supply special according to claim 1, it is characterized in that: described connector (1), connector (2), connector (3) are separately fixed on housing front panel and the rear board, connector (1) comprises direct current supply input 24V+, direct current supply input 24V-, filament output Vf1, filament output Vf2, connector (2) comprise start and stop control R/S, pipe stream show Iadis, pipe press show HVdis, GND, connector (3) comprises high pressure output HV, high pressure ground.
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| CN 200910250211 CN101702864B (en) | 2009-12-08 | 2009-12-08 | High-voltage power supply special for X-ray tube |
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| CN 200910250211 CN101702864B (en) | 2009-12-08 | 2009-12-08 | High-voltage power supply special for X-ray tube |
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| CN101702864B CN101702864B (en) | 2013-03-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814839A (en) * | 2010-05-06 | 2010-08-25 | 天津市东文高压电源厂 | Modular power supply for insulating fixed symmetrical output high voltage |
| TWI489912B (en) * | 2013-11-04 | 2015-06-21 | Delta Electronics Inc | Power system of x-ray tube and method of controlling the same |
| CN106026677A (en) * | 2016-07-22 | 2016-10-12 | 东文高压电源（天津）股份有限公司 | High-voltage module power supply of microminiature low-ripple counting tube |
| CN107087337A (en) * | 2017-06-26 | 2017-08-22 | 南京普爱医疗设备股份有限公司 | A kind of voltage and current detecting adjusting means for carbon nanometer X-ray production apparatus |
| CN107255780A (en) * | 2017-06-26 | 2017-10-17 | 南京普爱医疗设备股份有限公司 | A kind of detection means for carbon nanometer test ray tube strength of discharge |
| CN107278009A (en) * | 2016-04-05 | 2017-10-20 | 通用医疗梅拉泰股份公司 | Radiological installation with Self Adaptive Control |
| CN109412424A (en) * | 2018-12-21 | 2019-03-01 | 东文高压电源（天津）股份有限公司 | A kind of amplitude, the adjustable high pressure sine-wave power circuit of frequency and implementation method |
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2009
- 2009-12-08 CN CN 200910250211 patent/CN101702864B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814839A (en) * | 2010-05-06 | 2010-08-25 | 天津市东文高压电源厂 | Modular power supply for insulating fixed symmetrical output high voltage |
| TWI489912B (en) * | 2013-11-04 | 2015-06-21 | Delta Electronics Inc | Power system of x-ray tube and method of controlling the same |
| CN107278009A (en) * | 2016-04-05 | 2017-10-20 | 通用医疗梅拉泰股份公司 | Radiological installation with Self Adaptive Control |
| CN107278009B (en) * | 2016-04-05 | 2019-12-31 | 通用医疗梅拉泰股份公司 | Radiological apparatus with adaptive control |
| CN106026677A (en) * | 2016-07-22 | 2016-10-12 | 东文高压电源（天津）股份有限公司 | High-voltage module power supply of microminiature low-ripple counting tube |
| CN107087337A (en) * | 2017-06-26 | 2017-08-22 | 南京普爱医疗设备股份有限公司 | A kind of voltage and current detecting adjusting means for carbon nanometer X-ray production apparatus |
| CN107255780A (en) * | 2017-06-26 | 2017-10-17 | 南京普爱医疗设备股份有限公司 | A kind of detection means for carbon nanometer test ray tube strength of discharge |
| CN107087337B (en) * | 2017-06-26 | 2019-01-29 | 南京普爱医疗设备股份有限公司 | A kind of voltage and current detection regulating device for carbon nanometer X-ray production apparatus |
| CN109412424A (en) * | 2018-12-21 | 2019-03-01 | 东文高压电源（天津）股份有限公司 | A kind of amplitude, the adjustable high pressure sine-wave power circuit of frequency and implementation method |
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| CN101702864B (en) | 2013-03-13 |
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