CN104467747A - Self-powered trigger - Google Patents
Self-powered trigger Download PDFInfo
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- CN104467747A CN104467747A CN201410628212.4A CN201410628212A CN104467747A CN 104467747 A CN104467747 A CN 104467747A CN 201410628212 A CN201410628212 A CN 201410628212A CN 104467747 A CN104467747 A CN 104467747A
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Abstract
A self-powered trigger used for triggering a pulse power discharge switch is composed of a first inductor, a voltage stabilizing tube, a first diode, a second diode, a third diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a power supply chip, a pulse transformer, a third capacitor, a fourth capacitor, a thyristor, a first triode, a second triode and a fiber-optic probe. The operating potential of the self-powered trigger is the same as that of the discharge switch, and the self-powered trigger only receives external light trigger signals, so the problems existing in a traditional trigger are solved fundamentally, and the self-powered trigger is beneficial to improving the reliability and safety of operation of pulse power equipment.
Description
Technical field
The present invention relates to discharge switch trigger equipment, particularly a kind of self-energizing trigger, for inertial confinement fusion device isopulse power discharge switch triggering, described discharge switch can be the discharge switch of energy storage device in gas switch, ignitron switch or solid switch isopulse power technology.
Technical background
American National igniting experiments room (National Ignition Facility, referred to as NIF) inertial confinement fusion (the Inertial confinement fusion that develops, referred to as ICF) device, its impulse power electrical source system adopts gas-filled switching tube, the trigger equipment of this switch is powered by charger, and its energy directly takes from electrical network.The discharge switch trigger circuits of the large-sized inertial confinement fusion pulse power domestic at present takes from electrical network equally, and the reliable triggering of this discharge switch is the key of whole ICF system reliability service.Traditional trigger is from mains supply, 220V power line penetrates pulse forming network (Pluse-forming Network, referred to as PFN), when there is catastrophic failure in PFN, there is the maximum 2MJ of reaching energy and recharge possibility into electrical network in the mode of high-voltage large current by trigger, bring great hidden danger to device security and personal safety.When PFN normally works, strong to the power reguirements antijamming capability of traditional flip-flop, thus reduce the risk of false triggering.
Summary of the invention
The object of the present invention is to provide a kind of self-energizing trigger triggered for pulse power discharge switch, the same discharge switch of operation current potential of this trigger, receive only exterior light triggering signal, fundamentally solve traditional flip-flop Problems existing, be conducive to improving pulse-power apparatus reliability of operation and fail safe.
Technical solution of the present invention is as follows:
A kind of self-energizing trigger, its feature is to be made up of the first inductance, voltage-stabiliser tube, the first diode, the second diode, the 3rd diode, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, power supply chip, pulse transformer, the 3rd electric capacity, the 4th electric capacity, thyristor, the first triode, the second triode and fibre-optical probe:
With the first described inductance in parallel after the first described resistance and the 3rd Diode series, one end that this first inductance is connected with the first resistance is connected with the positive pole of the first diode and forms the 1st port of this trigger;
The other end of the first described inductance and the positive pole of the positive pole of the 3rd diode and the negative pole of described voltage-stabiliser tube and the second diode form node, the negative pole of the second diode is connected with 1 pin of power supply chip with the second electric capacity, 2 pins of this power supply chip are connected with the other end of the second electric capacity, it is this trigger circuits that 3 pins of power supply chip connect+5V voltage, one end of the first electric capacity described in negative pole connection and one end of pulse transformer primary of the first described diode form node, the other end of this first electric capacity and the emitter of the first triode, the negative pole of described thyristor, 3 pins of fibre-optical probe, one end of 3rd electric capacity, 2 pins of power supply chip, the other end of the second electric capacity and the positive pole of voltage-stabiliser tube are connected to node and form the 4th port of this trigger,
The positive pole of described thyristor is connected with the other end of described pulse transformer primary, and the secondary two ends of this pulse transformer are the 2nd port of this trigger, the 5th port;
Described fibre-optical probe is the 3rd port of this trigger, 2 pins of described fibre-optical probe connect the other end of+5V power supply and the 3rd electric capacity, 7 pins of fibre-optical probe connect+5V power supply by the 4th electric capacity, 6 pins connect+5V power supply by the second resistance, 6 pins of described fibre-optical probe connect the base stage of the first triode, the collector electrode of the first triode is connected to one end of the 3rd resistance and the base stage of the second triode, another termination+5V power supply of the 3rd described resistance, the collector electrode of the second triode connects+5V power supply, the emitter of the second triode connects the trigger electrode of described thyristor through the 4th resistance.
Technique effect of the present invention:
1. the same discharge switch of operation current potential of trigger of the present invention, directly gets energy from high voltage circuit, does not affect electrical network, also not by electric network influencing;
2. trigger of the present invention only has optical fiber triggering signal with PFN outside connection, receives only exterior light triggering signal, fundamentally solves traditional flip-flop existing problems, is conducive to improving pulse-power apparatus reliability of operation and fail safe;
3. can trigger after 15 seconds in charging;
4., in charger stopping charging 20 seconds, can reliably trigger.
Accompanying drawing explanation
Fig. 1 is self-energizing flip-flop circuit figure of the present invention;
Fig. 2 is the pulse discharge loop figure adopting self-energizing trigger of the present invention;
In figure: L1-first inductance, DW1-voltage-stabiliser tube, D1-first diode, D2-second diode, D3-the 3rd diode, C1-first electric capacity, C2-second electric capacity, C3-the 3rd electric capacity, C4-the 4th electric capacity, R1-first resistance, R2-second resistance, R3-the 3rd resistance, R4-the 4th resistance, Q1-thyristor, Q2-first triode, Q3-the 2nd triode, L7805CV-power supply chip, T1-pulse transformer, U1-optical fiber splice;
In Fig. 2, T is self-energizing trigger, S is pulse power switch, C is the 5th electric capacity, L is the second inductance.Numeral 1,2,3,4,5,6,7 is circuit node, and wherein 1,2,3,4,5 is the port of self-energizing trigger.
Embodiment
Fig. 1 is self-energizing flip-flop circuit figure of the present invention, as seen from the figure, self-energizing trigger of the present invention, be made up of the first inductance L 1, voltage-stabiliser tube DW1, the first diode D1, the second diode D2, the 3rd diode D3, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the first electric capacity C1, the second electric capacity C2, power supply chip L7805CV, pulse transformer T1, the 3rd electric capacity C3, the 4th electric capacity C4, thyristor Q1, the first triode Q2, the second triode Q3 and fibre-optical probe U1
The first described resistance R1 and the 3rd diode D3 is in parallel with the first described inductance L 1 after connecting, and one end that this first inductance L 1 is connected with the first resistance R1 is connected with the positive pole of the first diode D1 and forms the 1st port of this trigger;
The negative pole of the other end of the first described inductance L 1 and the positive pole of the 3rd diode D3 and described voltage-stabiliser tube DW1 and the positive pole of the second diode D2 form node, the negative pole of the second diode D2 is connected with 1 pin of power supply chip with the second electric capacity C2, 2 pins of this power supply chip are connected with the other end of the second electric capacity C2, it is this trigger circuits that 3 pins of power supply chip export+5V voltage, the one end of the first electric capacity C1 described in the negative pole of the first described diode D1 connects and the elementary one end of pulse transformer T1 form node, the other end of this first electric capacity C1 and the emitter of the first triode Q2, the negative pole of described thyristor Q1, 3 pins of fibre-optical probe U1, one end of 3rd electric capacity C3, 2 pins of power supply chip L7805CV, the other end of the second electric capacity C2 and the positive pole of voltage-stabiliser tube (DW1) are connected to node and form the 4th port of this trigger,
The other end that the positive pole of described thyristor Q1 is elementary with described pulse transformer T1 is connected, and the secondary two ends of this pulse transformer T1 are the 2nd port of this trigger, the 5th port;
Described fibre-optical probe U1 is the 3rd port of this trigger, 2 pins of described fibre-optical probe U1 connect the other end of+5V power supply and the 3rd electric capacity C3, 7 pins of fibre-optical probe U1 connect+5V power supply by the 4th electric capacity C4, 6 pins connect+5V power supply by the second resistance R2, described fibre-optical probe U1) 6 pins connect the base stage of the first triode Q2, the collector electrode of the first triode Q2 is connected to one end and the second triode (base stage of Q3 of the 3rd resistance R3, another termination+5V power supply of the 3rd described resistance R3, the collector electrode of the second triode Q3 connects+5V power supply, the emitter of the second triode Q3 is connected to the trigger electrode of thyristor Q1 through the 4th resistance R4.The present embodiment be pulse power open the light that triggering gets can 1000V, getting for control circuit can the self-energizing trigger of 20V.In charger charging process, self-energizing trigger charges to the first electric capacity C1 by the first inductance L 1.Charge after 15 seconds, the voltage on the first electric capacity C1 is full of 1000v.One R1 and the 3rd diode D3 forms the first inductance L 1 and lets out energy loop.Voltage-stabiliser tube DW1 not only ensures the second electric capacity C2 charging 20V, also will guarantee that voltage-stabiliser tube DW1 can not burn when big current flows through.Power supply chip L7805CV can become 5V voltage to power to control loop through the 3rd port translation the voltage on the second electric capacity C2.
The size of 1000V capacitor charging voltage depends on inductance, and computational process is as follows:
L1＝U/(di/dt)
＝1000V/(π/7·3·10^6·cos(π/7·10^6t))
The value of getting cos is 1, obtains L1=743uH.
Fibre-optical probe U1 and the first triode Q2, the second triode Q3 form control loop.When self-energizing trigger receives light signal by fibre-optical probe U1, first triode Q2 exports cut-off, second triode Q3 saturation conduction, trigger thyristor Q1 conducting, produce high pressure by pulse transformer T1 and export trigger impulse power switch by the secondary two ends 2,5 of pulse transformer T1.
Self-energizing trigger can also trigger after charger stops charging 20S.The charging voltage of 20V second electric capacity C2 changes into 5V by power supply chip and exports as this trigger circuits through 3 pins, and the leakage current of power supply chip is 100mA.According to the characteristic of power supply chip L7805CV, input more than 7V can normally export 5V voltage.In capacitor discharge process, electric current is constant substantially.Calculate when capacitance voltage remaining as the time needed during 7V is:
t＝CU/I＝22000μF·20V/100mA
＝28.6S
Fig. 2 is the circuit diagram of self-energizing trigger for pulse discharge loop, and in figure, T is self-energizing trigger, S is pulse power switch, C is the 5th electric capacity, L is the second inductance.As shown in Figure 2, the working condition of this circuit is as follows in the connection of each port of self-energizing trigger:
Charger is charged to the 5th electric capacity C by pulse discharge loop, and 1 connects charger positive pole, and 7 connect charger negative pole.In charger charging process, self-energizing trigger charges to the first electric capacity C1 by the first inductance L 1.When charger stops charging, when self-energizing trigger receives triggering light signal by fibre-optical probe U1, first triode Q2 exports cut-off, second triode Q3 saturation conduction, trigger thyristor Q1 conducting, produce high pressure by pulse transformer T1 and export trigger impulse power switch by the secondary two ends 2,5 of pulse transformer T1.
After self-energizing trigger accepts optical fiber triggering signal, through the 2nd port, the 5th port voltage pulse output trigger impulse device for power switching S.Pulse power switch device S conducting, the 5th electric capacity C discharges through the second inductance L, thus drives load running.
Experiment shows, the same discharge switch of operation current potential of self-energizing trigger of the present invention, and it receives only exterior light triggering signal, fundamentally solves traditional flip-flop existing problems, is conducive to improving pulse-power apparatus reliability of operation and fail safe.
Claims (1)
1. a self-energizing trigger, it is characterized in that by the first inductance (L1), voltage-stabiliser tube (DW1), first diode (D1), second diode (D2), 3rd diode (D3), first resistance (R1), second resistance (R2), 3rd resistance (R3), 4th resistance (R4), first electric capacity (C1), second electric capacity (C2), power supply chip (L7805CV), pulse transformer (T1), 3rd electric capacity (C3), 4th electric capacity (C4), thyristor (Q1), first triode (Q2), second triode (Q3) and fibre-optical probe (U1) are formed:
Described the first resistance (R1) and the 3rd diode (D3) are in parallel with described the first inductance (L1) after connecting, and one end that this first inductance (L1) is connected with the first resistance (R1) is connected with the positive pole of the first diode (D1) and forms the 1st port of this trigger;
The other end of described the first inductance (L1) and the positive pole of the positive pole of the 3rd diode (D3) and the negative pole of described voltage-stabiliser tube (DW1) and the second diode (D2) form node, the negative pole of the second diode (D2) is connected with 1 pin of power supply chip with the second electric capacity (C2), 2 pins of this power supply chip are connected with the other end of the second electric capacity (C2), it is this trigger circuits that 3 pins of power supply chip export+5V voltage, one end of the first electric capacity (C1) described in the negative pole of described the first diode (D1) connects and the elementary one end of pulse transformer (T1) form node, the other end of this first electric capacity (C1) and the emitter of the first triode (Q2), the negative pole of described thyristor (Q1), 3 pins of fibre-optical probe (U1), one end of 3rd electric capacity (C3), 2 pins of power supply chip (L7805CV), the other end of the second electric capacity (C2) and the positive pole of voltage-stabiliser tube (DW1) are connected to node and form the 4th port of this trigger,
The other end that the positive pole of described thyristor (Q1) is elementary with described pulse transformer (T1) is connected, and two secondary ports of this pulse transformer (T1) are the 2nd port, the 5th port of this trigger;
The 3rd port that described fibre-optical probe (U1) is this trigger, 2 pins of described fibre-optical probe (U1) connect the other end of+5V power supply and the 3rd electric capacity (C3), 7 pins of fibre-optical probe (U1) connect+5V power supply by the 4th electric capacity (C4), 6 pins connect+5V power supply by the second resistance (R2), 6 pins of described fibre-optical probe (U1) connect the base stage of the first triode (Q2), the collector electrode of the first triode (Q2) is connected to one end of the 3rd resistance (R3) and the base stage of the second triode (Q3), another termination+5V power supply of the 3rd described resistance (R3), the collector electrode of the second triode (Q3) connects+5V power supply, the emitter of the second triode (Q3) is connected to the trigger electrode of thyristor (Q1) through the 4th resistance (R4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628212.4A CN104467747B (en) | 2014-11-10 | 2014-11-10 | Self-powered trigger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628212.4A CN104467747B (en) | 2014-11-10 | 2014-11-10 | Self-powered trigger |
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| Publication Number | Publication Date |
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| CN104467747A true CN104467747A (en) | 2015-03-25 |
| CN104467747B CN104467747B (en) | 2017-02-15 |
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| CN201410628212.4A Active CN104467747B (en) | 2014-11-10 | 2014-11-10 | Self-powered trigger |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686044A (en) * | 2009-03-25 | 2010-03-31 | 深圳市科陆变频器有限公司 | IGBT drive protection circuit |
| CN102916461A (en) * | 2012-09-06 | 2013-02-06 | 深圳市合元科技有限公司 | Intelligent charge-discharge control circuit of battery |
| CN203103973U (en) * | 2013-01-23 | 2013-07-31 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically controlled reactor |
| US20140176003A1 (en) * | 2012-12-26 | 2014-06-26 | Unison Industries, Llc | Discharge switch device for ignition excitation system |
-
2014
- 2014-11-10 CN CN201410628212.4A patent/CN104467747B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686044A (en) * | 2009-03-25 | 2010-03-31 | 深圳市科陆变频器有限公司 | IGBT drive protection circuit |
| CN102916461A (en) * | 2012-09-06 | 2013-02-06 | 深圳市合元科技有限公司 | Intelligent charge-discharge control circuit of battery |
| US20140176003A1 (en) * | 2012-12-26 | 2014-06-26 | Unison Industries, Llc | Discharge switch device for ignition excitation system |
| CN203103973U (en) * | 2013-01-23 | 2013-07-31 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically controlled reactor |
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| CN104467747B (en) | 2017-02-15 |
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