CN104244545A - Triggering pre-burning device with xenon lamp - Google Patents

Abstract

A trigger pre-combustion device with a xenon lamp for driving a pulsed solid-state laser, using a pulsed xenon lamp as a load. The xenon lamp adopts an external trigger mode. The pre-ignition circuit provides 160mA current to maintain the pre-ionized state of the xenon lamp. The pre-ionization circuit is the trigger circuit of the pulsed xenon lamp. At the same time, the power supply has two working modes: manual control and remote control. In order to ensure that the xenon lamp can be triggered reliably every time, the power supply has two modes of manual triggering and automatic triggering. The invention has the advantages of reliable and stable power supply, simple structure, small volume and the like.

Description

Trigger pre-ignition device with xenon lamp

technical field

The invention relates to a solid-state laser, in particular to a trigger pre-combustion device with a xenon lamp for driving a pulsed solid-state laser.

technical background

The pulsed laser power supply system is based on the waveform-adjustable pulse current emitted by the compensation pulse generator, which directly pumps and discharges the xenon lamp to drive the pulsed laser. As a special non-linear resistive load, the pulsed xenon lamp requires that the output current of the compensating pulse generator match the current of the pulsed xenon lamp. At the same time, it is required that the xenon lamp can be effectively ignited before each main discharge pulse arrives. In order to ensure the effective ignition of the xenon lamp The circuit is required to set a reliable trigger mode, and the pulse xenon lamp is set to work continuously. At present, the pre-ionization power supply and the pulsed xenon lamp cannot be well matched, which affects the output current of the main amplifier, and finally leads to the output efficiency of the solid-state laser.

Contents of the invention

The object of the present invention is to provide a trigger pre-combustion device with xenon lamp for pulsed solid laser power supply. The device can ensure that the xenon lamp works under continuous power supply, and has two working modes of manual control and remote control, as well as two trigger modes of manual trigger and automatic trigger.

Technical solution of the present invention is as follows:

A trigger pre-combustion device for driving a pulsed solid-state laser with a xenon lamp, which uses a straight-tube pulsed xenon lamp as a light source, and is characterized in that it also includes a trigger circuit, a pre-ionization high-voltage source and a pre-ionization control source. The pre-ionization high-voltage source The high-voltage end of the high-voltage terminal is connected to the anode of the xenon lamp through the resistor and the diode in turn, the cathode of the xenon lamp is grounded, the junction of the diode and the resistor is connected to the positive pole of the voltmeter, the negative pole of the voltmeter is grounded, and the pre-ionization high-voltage source The output end of the pre-ionization control source is connected to the input end of the pre-ionization control power source, the output end of the pre-ionization control power source is connected to the middle contact of the switch, one contact of the switch is connected to the manual switch, and the other contact is connected to the remote control terminal;

The two ends of the trigger circuit are connected to the primary of the pulse transformer, the secondary high voltage end of the pulse transformer is connected to the trigger wire of the xenon lamp, the other end of the secondary of the pulse transformer is grounded, and the secondary pole of the pulse transformer is connected to the mA meter The positive pole of the milliampere meter is connected to the low-voltage end of the pre-ionization high-voltage source, and the high-voltage end of the trigger circuit is connected to the high-voltage end of the voltmeter, a resistor, and a diode to form a node.

The exterior of the pulsed xenon lamp is wound with nickel rosette as a trigger wire.

Advantages of the present invention:

1. The light source adopts straight tube pulsed xenon lamp, continuous pulse working mode, and external trigger mode to ensure that after the xenon lamp is triggered, the pre-combustion power supply provides a maintenance current for the xenon lamp.

2. The power supply adopts two switching modes of remote control and manual control.

3. In the manual mode, there are two trigger modes: automatic trigger and manual trigger.

4. The power supply is stable and reliable, with few components;

In a word, the pulsed xenon lamp of the present invention is reliable in operation, and can meet the requirement of compensating the pulse generator for the main discharge pulse current, and the pre-ignition power supply has a continuous current still flowing through the xenon lamp.

Description of drawings

Fig. 1 is the structural representation of the trigger pre-ignition device with xenon lamp of the present invention

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the present invention will be further described

Please refer to Fig. 1 first. Fig. 1 is a structural schematic diagram of a trigger pre-combustion device with a xenon lamp. As can be seen from the figure, the present invention is used for a pulsed solid-state laser to drive a trigger pre-combustion device with a xenon lamp, and a straight tube pulse xenon lamp is used as a light source to form a It includes a trigger circuit 8 , a pre-ionization high voltage source 10 and a pre-ionization control source 11 .

The high-voltage end of the pre-ionization high-voltage source 10 is connected to the anode 2 of the xenon lamp 4 through the resistor 6 and the diode 5 in turn, and the junction of the diode 5 and the resistor 6 is connected to the positive pole of the voltmeter 9, and the negative pole of the voltmeter 9 is grounded.

The output end of the pre-ionization high voltage source 10 is connected to the input end of the pre-ionization control source 11 . The output terminal of the pre-ionization control power supply 11 is connected to the middle contact of the switch 12, one contact of the switch 12 is connected to the manual switch 14, and the other contact is connected to the remote control signal 13.

Both ends of the trigger circuit 8 are connected to the primary of the pulse transformer 7, the secondary high voltage terminal of the pulse transformer 7 is connected to the trigger wire 3 of the xenon lamp 4, and the other end of the secondary of the pulse transformer 7 is grounded. Simultaneously, the secondary pole of the pulse transformer 7 is connected to the positive pole of the milliampere meter 15, and the negative pole of the milliampere meter 15 is connected to the low voltage end of the pre-ionization high voltage source 10. The high-voltage terminal of the trigger circuit 8 is connected to the high-voltage terminal of the voltmeter 9 .

The straight tube pulsed xenon lamp 4 used in this example is used as a load to generate continuous pulses, the anode 2 and the cathode 1 of the pulsed xenon lamp 4, and the exterior of the pulsed xenon lamp 4 is wound with nickel rosette 3 as the trigger wire 3.

The triggering simmer power unit works as follows:

The pre-ionization control source 11 is energized, when the right contact of the switch 12 is closed, and the manual control 14 is pressed, the pre-ionization high-voltage source 10 is electrified to work, and the output voltage of the pre-ionization voltage source 10 is applied to the xenon lamp through the resistor 6 and the diode 5 The anode 2 of 4, the capacitance in the trigger circuit 8 input the trigger pulse to the primary of the pulse transformer 7 through the gas discharge tube (when the working voltage is greater than 800v), and the high frequency and high voltage pulse induced in the secondary of the pulse transformer 7 is added to the winding On the trigger wire 3 on the pulsed xenon lamp 4, the xenon lamp 4 is triggered externally, so that the xenon lamp 4 is quickly broken down and turned on, and the voltage output by the high-voltage power supply 10 of the pre-ionization power supply keeps the xenon lamp 3 continuously and stably turned on.

When the left contact 13 of the switch 12 is closed, the xenon lamp 4 can be continuously and stably conducted through the remote control signal 13 and the trigger circuit 8 .

When the gas discharge tube in the trigger circuit 8 has a fault and cannot discharge, pressing a switch connected in parallel with the gas discharge tube in the trigger circuit 8 can also realize the discharge function.

Claims (2)

1. A trigger pre-combustion device for driving a pulsed solid-state laser with a xenon lamp, adopting a straight tube pulsed xenon lamp (4) as a light source, characterized in that its composition also includes a trigger circuit (8), a pre-ionization high-voltage source (10) and a pre-ionization The ionization control source (11), the high voltage end of the pre-ionization high voltage source (10) is connected to the anode (2) of the xenon lamp (4) through the resistor (6) and the diode (5) successively, and the xenon lamp (4) The negative electrode of the voltmeter (9) is grounded, and the node of the diode (5) and the resistor (6) is connected to the positive pole of the voltmeter (9), and the negative pole of the voltmeter (9) is grounded, and the output terminal of the pre-ionization high-voltage source (10) is connected to The input terminal of the pre-ionization control source (11), the output terminal of the pre-ionization control power source (11) is connected to the middle contact of the switch (12), and one contact of the switch (12) is connected to the manual switch (14), The other touches the remote control terminal (13); The two ends of the trigger circuit (8) are connected to the primary of the pulse transformer (7), the secondary high voltage end of the pulse transformer (7) is connected to the trigger wire (3) of the xenon lamp (4), and the pulse transformer (7) The other end of the secondary side is grounded, while the secondary pole of the pulse transformer (7) is connected to the positive pole of the milliampere meter (15), and the negative pole of the milliampere meter (15) is connected to the low-voltage end of the pre-ionization high-voltage source (10). The high voltage end of the trigger circuit (8) is connected to the high voltage end of the voltmeter (9), the resistor (6) and the diode (5) to form a node. 2. The trigger pre-ignition device with xenon lamp according to claim 1, characterized in that the exterior of the pulsed xenon lamp (4) is wound with nickel rose as the trigger wire (3).