CN104932600A - High-frequency current source device with state monitoring function for electromagnetically triggering thyristors - Google Patents
High-frequency current source device with state monitoring function for electromagnetically triggering thyristors Download PDFInfo
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Abstract
The invention discloses a high-frequency current source device with a state monitoring function for electromagnetically triggering thyristors. The high-frequency current source device comprises a high-frequency current source generating module and a current source state monitoring module. the high-frequency current source generating module is used for generating and outputting high-frequency current sources according to control signals, the current source state monitoring module is connected with an output end of the high-frequency current source generating module and comprises a current amplitude detecting unit and a state outputting unit, the current amplitude detecting unit is connected with the state outputting unit, the high-frequency current sources outputted by the high-frequency current source generating unit can be acquired by the current amplitude detecting unit in real time, amplitude of the high-frequency current sources can be detected, and amplitude detection results can be outputted; the amplitude detection results can be transmitted by the state outputting unit, and states of the high-frequency current sources can be outputted according to the amplitude detection results. The high-frequency current source device has the advantages that the states of the current sources can be monitored in real time while the high-frequency current sources are generated, and the high-frequency current source device is simple in structure, low in required cost, flexible in application and excellent in safety performance.
Description
Technical field
The present invention relates to thyristor electromagnetism triggering technique field, particularly relate to a kind of thyristor electromagnetism triggering high-frequency current source apparatus with monitoring function.
Background technology
Along with the fast development of industry, half control type device thyristor is very general in the application in industrial unsteady flow field.The triggering mode of current thyristor is mainly divided into electromagnetism to trigger and photoelectricity triggers two kinds, and wherein because electromagnetism triggering mode has the advantage of high reliability and low cost, small size, it is widely used in 10kV and following converter system.Primarily of the source of high frequency current trigger element of low-pressure side and on high-tension side coupling unit composition in the electromagnetism triggering system of current thyristor, wherein the function of source of high frequency current trigger element is the high-frequency current source signal generating fixed frequency according to the order of control system, drive and trigger thyristor, it occupies to pass consequence in systems in which.But, due in source of high frequency current generative process, control system cannot learn the duty of source of high frequency current, too high voltages is born due to other thyristor individual or whole group of thyristor not conducting, very easily cause thyristor breakdown, thus can produce potential safety hazard to the thyristor work of whole system.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existed for prior art, the invention provides that simple, the required cost of a kind of structure is low, applying flexible and the high thyristor electromagnetism triggering high-frequency current source apparatus with monitoring function of security performance, the Real-Time Monitoring of current source state can be realized while generating source of high frequency current.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of thyristor electromagnetism triggering high-frequency current source apparatus with status monitoring function, comprise for generating according to control signal and exporting the source of high frequency current generation module of source of high frequency current, also comprise the current source state monitoring module be connected with the output terminal of described source of high frequency current generation module, described current source state monitoring module comprises interconnective current amplitude detecting unit and State-output unit, the source of high frequency current that source of high frequency current generation module described in described current amplitude detecting unit Real-time Collection exports carries out amplitude detection, output amplitude testing result; Described amplitude detection result sends by described State-output unit, and exports the state of source of high frequency current according to described amplitude detection result.
As a further improvement on the present invention: described current amplitude detecting unit comprises the current source voltage Acquisition Circuit, differential amplifier, low-pass filter and the reference voltage comparer that connect successively, described current source voltage Acquisition Circuit gathers the voltage of the source of high frequency current that described source of high frequency current generation module exports, the described voltage collected, successively after described differential amplifier, low-pass filter and reference voltage comparer, exports the amplitude detection result of source of high frequency current.
As a further improvement on the present invention: described State-output unit comprises fiber optic emitter TX1 and launches driving circuit, the positive pole of described fiber optic emitter TX1 accesses power supply by the first resistance R33, and negative pole connects described transmitting driving circuit; Described transmitting driving circuit comprises the first phase inverter D8, dividing potential drop electronic circuit and the switching device that connect successively, the amplitude detection result that described current amplitude detecting unit exports, after described first phase inverter D8, dividing potential drop electronic circuit, switching device, outputting drive voltage is to described fiber optic emitter TX1, is sent the power supply state of described amplitude detection result and display translation source of high frequency current by described fiber optic emitter TX1.
As a further improvement on the present invention: described source of high frequency current generation module comprises the optical fiber receiving element, filter unit, coding unit and the driver element that connect successively, described optical fiber receiving element receives optical control signal and is converted to enable signal, and after described filter unit output filtering, enable signal is to described coding unit; Described coding unit receives enable signal after described filtering, controls to generate drive pulse signal and exports described driver element to; Described driver element is according to described drive pulse signal driver output source of high frequency current.
As a further improvement on the present invention: described optical fiber receiving element comprises fiber optic receiver HP1 and the pull-up resistor R2 be connected with the output terminal of described fiber optic receiver HP1 respectively and the second phase inverter D1, the level signal that described fiber optic receiver HP1 exports when receiving optical control signal, is converted to level enable signal and exports after described pull-up resistor R2, the second phase inverter D1.
As a further improvement on the present invention: described filter unit comprises two inputs and door D2 and charge-discharge circuit, one end of described charge-discharge circuit connects the output terminal of described optical fiber receiving element, the other end connects one of them input end of described two inputs and door D2, and described two inputs are connected the output terminal of described optical fiber receiving element with another input end of door D2; The discharge loop that described charge-discharge circuit comprises the first electric capacity C3, charging resistor R3 and is made up of the second resistance R4 be connected in series and the first diode V2, described charging resistor R3 and described discharge loop are connected in parallel, one end of described first electric capacity C3 connects described discharge loop, charging resistor R3, other end ground connection respectively.
As a further improvement on the present invention: described driver element comprises the mosfet driver D4, bleeder circuit, MOSFET pipe T1 and the current-limiting resistance R8 that connect successively, and described current-limiting resistance R8 accesses power supply by shorting stub; Output drive signal is to described MOSFET pipe T1 after described mosfet driver D4, bleeder circuit for the drive pulse signal that described coding unit exports, and described MOSFET pipe T1 is open-minded under the driving of described drive singal, exports source of high frequency current; Described current-limiting resistance R8 carries out current limliting to the source of high frequency current exported;
As a further improvement on the present invention: described driver element also comprises the magnetic saturation protection circuit be made up of the second diode V3 connected and the 3rd resistance R9, described magnetic saturation protection circuit is used for the two ends of couples high frequency current source energy to the magnetic ring transformer of thyristor by shorting stub access.
As a further improvement on the present invention: the frequency adjustment circuit that described coding unit comprises oscillator D3 and is connected with the input end of described oscillator D3; Described frequency adjustment circuit comprises the 4th resistance R5, the 5th resistance R6 and the second electric capacity C4, the input end of described 4th resistance R5 connects the output terminal of described filter unit, output terminal connects the described input end of the 5th resistance R6, the input end of oscillator D3 respectively, the output terminal of described 5th resistance R6 connects input end, the second electric capacity C4 of described oscillator D3, the other end ground connection of described second electric capacity C4 respectively.
As a further improvement on the present invention: also comprise the power supply module be connected with described source of high frequency current generation module, current source state monitoring module respectively, described power supply module comprises power supply chip D9 and the input energy storage filtering circuit, the output voltage regulation circuit that are connected with described power supply chip D9 respectively and exports energy storage filtering circuit, and described output voltage regulation circuit comprises the 6th resistance R41, the 7th resistance R42 that are connected with power supply chip D9 output terminal respectively.
Compared with prior art, the invention has the advantages that:
1) the present invention is monitored in real time by the state of current source state monitoring module to the source of high frequency current generated, the amplitude of the source of high frequency current that source of high frequency current generation module exports is detected in real time by current amplitude detecting unit, the amplitude detected is sent by State-output unit, exported the state obtaining source of high frequency current by the amplitude detected simultaneously, make control system when sending steering order and controlling to generate source of high frequency current, corresponding current source state can be obtained simultaneously, thus ensure that current source performs trouble free service under controllable state, the reliability of the whole IGBT group system of effective raising,
2) the further current amplitude detecting unit of the present invention is by the amplitude of current source voltage Acquisition Circuit, differential amplifier, low-pass filter detection source of high frequency current, through reference voltage comparer relatively after produce digital signal export, structure is simple, can obtain can the amplitude information of direct representation source of high frequency current state, thus can directly obtain source of high frequency current state according to the amplitude information detected;
3) the further State-output unit of the present invention comprises fiber optic emitter and launches driving circuit, fiber optic emitter is driven to send amplitude information by launching driving circuit according to amplitude detection result, be convenient to the monitor message of control system real-time reception source of high frequency current state, also can be obtained the power supply state of source of high frequency current by the luminance of fiber optic emitter simultaneously, thus the Real-Time Monitoring of source of high frequency current state and power supply state can be realized simultaneously, ensure safe, the controlled work of source of high frequency current;
4) the further source of high frequency current generation module of the present invention forms single-ended flyback high-frequency current source circuit by optical fiber receiving element, filter unit, coding unit and driver element, the light pulse of external control system is received by optical fiber receiving element, be converted to enable signal, unit, coding unit are converted to the pulse signal of fixed frequency after filtering, receive by driver element the pulse signal driven MOS FET produced and export source of high frequency current, structure simply, is conveniently applied, and the generating mode of current source is flexible.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment thyristor electromagnetism triggering high-frequency current source apparatus.
Fig. 2 is the electrical block diagram of optical fiber receiving element in the present embodiment.
Fig. 3 is the electrical block diagram of filter unit in the present embodiment.
Fig. 4 is the electrical block diagram of coding unit in the present embodiment.
Fig. 5 is the electrical block diagram of driver element in the present embodiment.
Fig. 6 is the electrical block diagram of current amplitude detecting unit in the present embodiment.
Fig. 7 is the electrical block diagram of State-output unit in the present embodiment.
Fig. 8 is the electrical block diagram of power supply module in the present embodiment.
Marginal data: 1, source of high frequency current generation module; 11, optical fiber receiving element; 12, filter unit; 121, charge-discharge circuit; 13, coding unit; 131, frequency adjustment circuit; 14, driver element; 141, bleeder circuit; 142, magnetic saturation protection circuit; 2, current source state monitoring module; 21, current amplitude detecting unit; 211, differential amplifier; 212, low-pass filter; 213, reference voltage comparer; 22, State-output unit; 221, driving circuit is launched; 2221, dividing potential drop electronic circuit; 3, power supply module; 31, output voltage regulation circuit.
Embodiment
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
As shown in Figure 1, the present embodiment has the thyristor electromagnetism triggering high-frequency current source apparatus of status monitoring function, comprise for generating according to control signal and exporting the source of high frequency current generation module 1 of source of high frequency current, also comprise the current source state monitoring module 2 be connected with the output terminal of source of high frequency current generation module 1, current source state monitoring module 2 comprises interconnective current amplitude detecting unit 21 and State-output unit 22, the source of high frequency current that current amplitude detecting unit 21 Real-time Collection source of high frequency current generation module 1 exports carries out amplitude detection, output amplitude detection signal, amplitude detection result sends by State-output unit 22, and exports the state of source of high frequency current according to amplitude detection result.The present embodiment arranges above-mentioned each module on high-frequency current source plate, high-frequency current source plate is communicated with control system by optical fiber, the steering order realizing receiving control system starts source of high frequency current generation module 1 and generates source of high frequency current, and amplitude detection result is sent to control system.
The present embodiment detects the amplitude of the source of high frequency current that source of high frequency current generation module 1 exports in real time by current amplitude detecting unit 21, the amplitude detected is sent by State-output unit 22, exported the state obtaining source of high frequency current by the amplitude detected simultaneously, realize the real-time monitoring of source of high frequency current state, make control system when sending steering order and controlling to start source of high frequency current generation module 1, corresponding current source state can be obtained simultaneously, thus ensure that current source performs trouble free service under controllable state.Outside control system is according to the current source state obtained in real time, can judge whether current source normally works, after detection determines some current source faults, control the trigger command of closing all current sources in time, thus ensure that indivedual thyristor does not puncture, effectively can improve the safe reliability of whole IGBT group system.
See Fig. 1, the present embodiment high-frequency current source generation module 1 comprises the optical fiber receiving element 11, filter unit 12, coding unit 13 and the driver element 14 that connect successively, optical fiber receiving element 11 receives optical control signal and is converted to enable signal, and after filter unit 12 output filtering, enable signal is to coding unit 13; Enable signal after coding unit 13 accepts filter, controls to generate drive pulse signal and exports driver element 14 to; Driver element 14 is according to drive pulse signal driver output source of high frequency current.
The present embodiment receives the light pulse of external control system especially by optical fiber receiving element 11, and is converted to level signal and exports as enable signal.As shown in Figure 2, in the present embodiment, optical fiber receiving element 11 comprises fiber optic receiver HP1 and the pull-up resistor R2 be connected with the output terminal of fiber optic receiver HP1 respectively and the second phase inverter D1, the level signal that fiber optic receiver HP1 exports when receiving optical control signal, is converted to level enable signal U1 and exports after pull-up resistor R2, the second phase inverter D1.The input end access 15V power supply of the present embodiment pull-up resistor R2, is pulled to 15V by the output voltage of fiber optic receiver HP1, thus provides stable low and high level for the second phase inverter D1.Fiber optic receiver HP1 two ends are provided with the Voltage stabilizing module be made up of the 8th resistance R1 and stabilivolt V1, and wherein stabilivolt V1 is in parallel with fiber optic receiver HP1, for by the supply voltage voltage stabilizing of fiber optic receiver HP1 in safe range.The input of fiber optic receiver HP1, output terminal are also respectively equipped with the first filter capacitor C1, the second filter capacitor C2, for the clutter in filtering low and high level transfer process.When fiber optic receiver HP1 receives light signal, export and then drag down, i.e. output low level, after said structure, forms high level by the second phase inverter D1, thus realizes receiving the logic that namely light be converted to high level.
The present embodiment passes through the external interference signals of filter unit 12 filtering one fixed width, level enable signal U2 after output filtering.As shown in Figure 3, in the present embodiment, filter unit 12 comprises two inputs and door D2 and charge-discharge circuit 121, the output terminal of one end connecting fiber receiving element 11 of charge-discharge circuit 121, the other end connects one of them input end of two inputs and door D2, the output terminal of another input end connecting fiber receiving element 11 of two inputs and door D2; The discharge loop that charge-discharge circuit 121 comprises the first electric capacity C3, charging resistor R3 and is made up of the second resistance R4 be connected in series and the first diode V2, charging resistor R3 and discharge loop are connected in parallel, one end of first electric capacity C3 connects discharge loop, charging resistor R3 respectively, other end ground connection.When the level enable signal U1 that optical fiber receiving element 11 exports is high level, charge to the first electric capacity C3 by charging resistor R3, and only have after the voltage on the first electric capacity C3 reaches certain value, could export high level with door D2, wherein filtering time is determined by R3, C3; When the level enable signal U1 that optical fiber receiving element 11 exports is low level, the voltage of the first electric capacity C3 is discharged by the output terminal of the second phase inverter D1 of discharge loop, optical fiber receiving element 11, thus can external interference signals, the bursts of error of filtering one fixed width by said structure, make can not because by mistake pulse enable generation source of high frequency current, improve the interference free performance of system.
By coding unit 13, level enable signal U2 after filtering is converted to the pulse signal U3 of fixed frequency in the present embodiment.As shown in Figure 4, the frequency adjustment circuit 131 that in the present embodiment, coding unit 13 comprises oscillator D3 and is connected with the input end of oscillator D3.Oscillator D3 specifically adopts NE555 type oscillator, and wherein DISCH is discharge end (DIS), and it is the output of chip internal discharge tube, and has unsettled and ground connection two states, is also by the Determines of input end; TRICH is the input of comparer under chip internal.Frequency adjustment circuit 131 comprises the 4th resistance R5, the 5th resistance R6 and the second electric capacity C4, the input end of the 4th resistance R5 connects the output terminal of filter unit 12, output terminal connects the input end of the 5th resistance R6, the DISCH end of oscillator D3 respectively, TRICH end, the second electric capacity C4 of the output terminal difference connection oscillator D3 of the 5th resistance R6, the other end ground connection of the second electric capacity C4.After the filtering of link after filtering, level signal U2 accesses the Enable Pin R of oscillator D3, when after filtering, level enable signal U2 is high level, then oscillator D3 is effectively enable, export the pulse signal U3 of certain frequency and dutycycle as drive pulse signal, wherein the frequency of pulse signal U3 and dutycycle are determined by frequency adjustment circuit 131, when after filtering, level enable signal U2 is low level, then oscillator D3 resets, oscillator D3 output low level.
The pulse signal U3 that the present embodiment is produced by driver element 14 received code unit 13, driven MOS FET exports source of high frequency current.As shown in Figure 5, in the present embodiment, driver element 14 comprises the mosfet driver D4, bleeder circuit 141, MOSFET pipe T1 and the current-limiting resistance R8 that connect successively, and current-limiting resistance R8 accesses power supply by shorting stub; Output drive signal is to MOSFET pipe T1 after mosfet driver D4, bleeder circuit 141 for the drive pulse signal that coding unit 13 exports, and MOSFET pipe T1 is open-minded under the driving of drive singal, exports source of high frequency current; Current-limiting resistance R8 carries out current limliting to the source of high frequency current exported.By arranging current-limiting resistance R8 at output terminal, can the amplitude in cut-off current source, play the effect regulating current source di/dt simultaneously.Driver element 14 also comprises the magnetic saturation protection circuit 142 be made up of the second diode V3 connected and the 3rd resistance R9, and magnetic saturation protection circuit 142 is used for the two ends of couples high frequency current source energy to the magnetic ring transformer of thyristor by shorting stub access.The magnetic saturation protection circuit 142 that second diode V3 and the 3rd resistance R9 is formed turns off the moment at current source, makes the electric current in magnet ring reduce to zero rapidly, avoids causing magnetic saturation.
The present embodiment is also provided with the 3rd filter capacitor C8 between bleeder circuit 141 and MOSFET pipe T1; Be arranged in parallel the 4th filter capacitor C9 at current-limiting resistance two ends, be used for eliminating the high frequency cost on current-limiting resistance R8; One end of MOSFET pipe T1 is connected with sampling resistor R10, for gathering the source of high frequency current of output.The present embodiment mosfet driver D4 specifically adopts IR2110S type mosfet driver, when the pulse signal U3 that coding unit 13 produces is high level, the gate leve output terminal LO of mosfet driver D4 also exports high level, after the filtering of bleeder circuit 141 and the 3rd filter capacitor C8, Direct driver MOSFET T1 is open-minded, power supply is by current-limiting resistance R8, MOSFET pipe T1, sampling resistor R10 forms current source path in shorting stub, by the magnetic ring transformer S1 of outside, S2 etc. by the source of high frequency current Energy Coupling in shorting stub to thyristor side, realize the open-minded of thyristor.
The present embodiment receives the light pulse of external control system by optical fiber receiving element 11, filter unit 12 is exported to after being converted to level signal, level signal after unit 12 is after filtering converted to the pulse signal of fixed frequency by coding unit 13, the pulse signal that driver element 14 received code unit 13 produces, driven MOS FET exports source of high frequency current.Form single-ended flyback high-frequency current source circuit by above-mentioned each unit, structure simply, is conveniently applied, and the generating mode of current source is flexible.
In the present embodiment, detected the amplitude of the source of high frequency current that driver element 14 exports by current amplitude detecting unit 21, after relatively, produce digital signal U4 export.As shown in Figure 5,6, in the present embodiment, current amplitude detecting unit 21 comprises the current source voltage Acquisition Circuit, differential amplifier 211, low-pass filter 212 and the reference voltage comparer 213 that connect successively, current source voltage Acquisition Circuit gathers the voltage of the source of high frequency current that source of high frequency current generation module 1 exports, the voltage collected, successively after differential amplifier 211, low-pass filter 212 and reference voltage comparer 213, exports the amplitude detection result of source of high frequency current.Current source voltage Acquisition Circuit is specially the sampling resistor R10 of access source of high frequency current generation module 1 output terminal, is gathered the source of high frequency current of source of high frequency current generation module 1 output by sampling resistor R10.The present embodiment low-pass filter 212 is specially second-order low-pass filter.
After the voltage that sampling resistor R10 collects is amplified by differential amplifier 211, export low-pass filter 212 filtering radio-frequency component wherein to, filtered signal exports reference voltage comparer 213 to and compares, by filtered signal with by the 9th resistance R18, voltage stabilizing diode V5 set up the reference voltage obtained and compare, if be greater than reference voltage, then reference voltage comparer 213 exports high level; If be less than reference voltage, then output low level.The amplitude of source of high frequency current is detected by current source voltage Acquisition Circuit, differential amplifier 211, low-pass filter 212, through reference voltage comparer 213 relatively after produce digital signal export, structure is simple, and can obtain can the amplitude information of direct representation source of high frequency current state.
In the present embodiment, by State-output unit 22, the digital signal U4 that current amplitude detecting unit 21 produces is sent to control system, and export the state of source of high frequency current.As shown in Figure 7, in the present embodiment, State-output unit 22 comprises fiber optic emitter TX1 and launches driving circuit 221, and the positive pole of fiber optic emitter TX1 accesses power supply by the first resistance R33, and negative pole connects launches driving circuit 221; Launch driving circuit 221 and comprise the first phase inverter D8, dividing potential drop electronic circuit 2221 and the switching device that connect successively, the amplitude detection result that current amplitude detecting unit 21 exports, after the first phase inverter D8, dividing potential drop electronic circuit 2221, switching device, outputting drive voltage is to fiber optic emitter TX1, is sent the power supply state of amplitude detection result and display translation source of high frequency current by fiber optic emitter TX1.Outside control system can directly obtain source of high frequency current state according to the current source state amplitude information obtained in real time, can judge whether current source normally works, after detection determines some current source faults, control the trigger command of closing all current sources in time, thus ensure that indivedual thyristor is not breakdown.
During work, MOSFET T1 opens the electric current of generation after sampling resistor R10, form the voltage signal of certain amplitude, send into differential amplifier 211, after amplifying, voltage signal gives reference voltage comparer 213 after low-pass filter 212 filtering, negative terminal due to reference voltage comparer 213 is input as fixing DC quantity, therefore after only having the voltage magnitude when anode to be greater than this fixing DC quantity, the digital signal U4 that reference voltage comparer 213 exports just becomes high level, this high level becomes low level after the first phase inverter D8 of State-output unit 22, now triode switch device V10 is not open-minded, fiber optic emitter TX1 is not luminous, have no progeny when MOSFET T1 closes, sampling resistor R10 both end voltage is zero, the digital signal U4 that now reference voltage comparer 213 exports is then low level, then by becoming high level after the phase inverter D8 of State-output unit 22, so now fiber optic emitter TX1 is luminous.Namely when source of high frequency current generation module 1 exports source of high frequency current, MOSFET T1 high frequency is opened, is turned off, and now fiber optic emitter TX1 then forms lasting luminous, not luminous recurrent state.
When MOSFET T1 does not work, produce without high-frequency current, the digital signal U4 that now reference voltage comparer 213 exports is lasting low level, high level is exported after the first phase inverter D8 of State-output unit 22, so fiber optic emitter TX1 continuous illumination, then namely can be obtained the power supply state of source of high frequency current by the continuous illumination state of fiber optic emitter TX1, thus complete the Real-Time Monitoring of source of high frequency current state and power supply state.
The present embodiment also comprises the power supply module 3 be connected with described source of high frequency current generation module 1, current source state monitoring module 2 respectively, as shown in Figure 6, in the present embodiment, power supply module 3 comprises power supply chip D9 and the input energy storage filtering circuit, the output voltage regulation circuit 31 that are connected with power supply chip D9 respectively and exports energy storage filtering circuit, output voltage regulation circuit 31 comprises the 6th resistance R41, the 7th resistance R42 that hold with the FB of power supply chip D9 respectively and be connected, is determined the size of the magnitude of voltage exported by the 6th resistance R41, the 7th resistance R42.The present embodiment power supply chip U9 specifically adopts LM2595 type power supply chip, input energy storage filtering circuit comprises the first storage capacitor C41, the input filter capacitor C42 that are connected in parallel, export the output inductor L1 that energy storage filtering circuit comprises the second storage capacitor C44 and the radio-frequency component for filter out power chip D9 generation, one end of output inductor L1 connects the CB end of power supply chip D9 by resistance C43, the other end is by the second storage capacitor C44 ground connection.The present embodiment first storage capacitor C41, the second storage capacitor C44 adopt large capacitance electric capacity, and input filter capacitor C42 adopts the electric capacity of low-capacitance.The present embodiment adopts the input of 24V power supply, and 24V power supply exports 15V power supply after said structure, as the power supply of whole circuit.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (10)
1. one kind has the thyristor electromagnetism triggering high-frequency current source apparatus of status monitoring function, comprise for generating according to control signal and exporting the source of high frequency current generation module (1) of source of high frequency current, it is characterized in that: also comprise the current source state monitoring module (2) be connected with the output terminal of described source of high frequency current generation module (1), described current source state monitoring module (2) comprises interconnective current amplitude detecting unit (21) and State-output unit (22), the source of high frequency current that described in described current amplitude detecting unit (21) Real-time Collection, source of high frequency current generation module (1) exports carries out amplitude detection, output amplitude testing result, described amplitude detection result sends by described State-output unit (22), and exports the state of source of high frequency current according to described amplitude detection result.
2. high-frequency current source apparatus according to claim 1, it is characterized in that: described current amplitude detecting unit (21) comprises the current source voltage Acquisition Circuit connected successively, differential amplifier (211), low-pass filter (212) and reference voltage comparer (213), described current source voltage Acquisition Circuit gathers the voltage of the source of high frequency current that described source of high frequency current generation module (1) exports, the described voltage collected is successively through described differential amplifier (211), after low-pass filter (212) and reference voltage comparer (213), export the amplitude detection result of source of high frequency current.
3. high-frequency current source apparatus according to claim 2, it is characterized in that: described State-output unit (22) comprises fiber optic emitter TX1 and launches driving circuit (221), the positive pole of described fiber optic emitter TX1 accesses power supply by the first resistance R33, and negative pole connects described transmitting driving circuit (221); Described transmitting driving circuit (221) comprises the first phase inverter D8, dividing potential drop electronic circuit (2221) and the switching device that connect successively, the amplitude detection result that described current amplitude detecting unit (21) exports, after described first phase inverter D8, dividing potential drop electronic circuit (2221), switching device, outputting drive voltage is to described fiber optic emitter TX1, is sent the power supply state of described amplitude detection result and display translation source of high frequency current by described fiber optic emitter TX1.
4. according to the high-frequency current source apparatus in claims 1 to 3 described in any one, it is characterized in that: described source of high frequency current generation module (1) comprises the optical fiber receiving element (11), filter unit (12), coding unit (13) and the driver element (14) that connect successively, described optical fiber receiving element (11) receives optical control signal and is converted to enable signal, and after described filter unit (12) output filtering, enable signal is to described coding unit (13); Described coding unit (13) receives enable signal after described filtering, controls to generate drive pulse signal and exports described driver element (14) to; Described driver element (14) is according to described drive pulse signal driver output source of high frequency current.
5. high-frequency current source apparatus according to claim 4, it is characterized in that: described optical fiber receiving element (11) comprises fiber optic receiver HP1 and the pull-up resistor R2 be connected with the output terminal of described fiber optic receiver HP1 respectively and the second phase inverter D1, the level signal that described fiber optic receiver HP1 exports when receiving optical control signal, is converted to level enable signal and exports after described pull-up resistor R2, the second phase inverter D1.
6. high-frequency current source apparatus according to claim 5, it is characterized in that: described filter unit (12) comprises two inputs and door D2 and charge-discharge circuit (121), one end of described charge-discharge circuit (121) connects the output terminal of described optical fiber receiving element (11), the other end connects one of them input end of described two inputs and door D2, and described two inputs are connected the output terminal of described optical fiber receiving element (11) with another input end of door D2; The discharge loop that described charge-discharge circuit (121) comprises the first electric capacity C3, charging resistor R3 and is made up of the second resistance R4 be connected in series and the first diode V2, described charging resistor R3 and described discharge loop are connected in parallel, one end of described first electric capacity C3 connects described discharge loop, charging resistor R3, other end ground connection respectively.
7. high-frequency current source apparatus according to claim 6, it is characterized in that: described driver element (14) comprises the mosfet driver D4, bleeder circuit (141), the MOSFET pipe T1 and current-limiting resistance R8 that connect successively, and described current-limiting resistance R8 accesses power supply by shorting stub; The drive pulse signal that described coding unit (13) exports is output drive signal extremely described MOSFET pipe T1 after described mosfet driver D4, bleeder circuit (141), described MOSFET pipe T1 is open-minded under the driving of described drive singal, exports source of high frequency current; Described current-limiting resistance R8 carries out current limliting to the source of high frequency current exported.
8. high-frequency current source apparatus according to claim 7; it is characterized in that: described driver element (14) also comprises the magnetic saturation protection circuit (142) be made up of the second diode V3 connected and the 3rd resistance R9, described magnetic saturation protection circuit (142) is used for the two ends of couples high frequency current source energy to the magnetic ring transformer of thyristor by shorting stub access.
9. high-frequency current source apparatus according to claim 8, is characterized in that: the frequency adjustment circuit (131) that described coding unit (13) comprises oscillator D3 and is connected with the input end of described oscillator D3; Described frequency adjustment circuit (131) comprises the 4th resistance R5, the 5th resistance R6 and the second electric capacity C4, the input end of described 4th resistance R5 connects the output terminal of described filter unit (12), output terminal connects the described input end of the 5th resistance R6, the input end of oscillator D3 respectively, the output terminal of described 5th resistance R6 connects input end, the second electric capacity C4 of described oscillator D3, the other end ground connection of described second electric capacity C4 respectively.
10. according to the high-frequency current source apparatus in claim 5 ~ 9 described in any one, it is characterized in that: also comprise respectively with described source of high frequency current generation module (1), the power supply module (3) that current source state monitoring module (2) connects, the input energy storage filtering circuit that described power supply module (3) comprises power supply chip D9 and is connected with described power supply chip D9 respectively, output voltage regulation circuit (31) and output energy storage filtering circuit, described output voltage regulation circuit (31) comprises the 6th resistance R41 be connected with power supply chip D9 output terminal respectively, 7th resistance R42.
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| CN201510281477.6A CN104932600B (en) | 2015-05-28 | 2015-05-28 | There is the IGCT electromagnetism triggering high frequency electric source apparatus of status monitoring function |
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| CN104932600B CN104932600B (en) | 2016-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110908487A (en) * | 2019-11-24 | 2020-03-24 | 苏州浪潮智能科技有限公司 | Server and main and standby power switching control circuit thereof |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
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| CN110908487A (en) * | 2019-11-24 | 2020-03-24 | 苏州浪潮智能科技有限公司 | Server and main and standby power switching control circuit thereof |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104932600B (en) | 2016-08-24 |
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