CN2169951Y

CN2169951Y - High anti-interference photoelectric control high voltage pulse generator

Info

Publication number: CN2169951Y
Application number: CN 93207093
Authority: CN
Inventors: 申家镜; 孟范江; 张书亮; 姜洪伟
Original assignee: Mudanjiang City Photoelectric Technology Research Institute
Current assignee: Mudanjiang City Photoelectric Technology Research Institute
Priority date: 1993-03-27
Filing date: 1993-03-27
Publication date: 1994-06-22
Anticipated expiration: 2003-03-27

Abstract

The utility model provides a high anti-interference photoelectric control high voltage pulse generator, which is composed of a frequency modulation electrical motor, a photoelectric disk, a rotating electrode, a photoelectric switch and a pulse amplification circuit. The photoelectric plate is arranged on the shaft of the frequency modulation electrical motor, and connected with the shaft of the rotating electrode. The photoelectric switch controls the work of the pulse amplification circuit by the photoelectric disk for making the generation of high voltage trigger pulse and leading of a rotary switch synchronize. The amplifying circuit adopts floating electric power source, photoelectric isolation and favorable screen method, which can make the high anti-interference photoelectric control high voltage pulse generator stably and reliably work under high electromagnetic interference environment. The leading edge of output pulse is steep, and repetitive frequency is adjustable. The utility model is suitable for trigger mechanisms of lasers and pulse high-current discharge apparatuses in various forms.

Description

High anti-interference photoelectric control high voltage pulse generator

The utility model belongs to the high-voltage pulse generation device, a kind of high anti-interference photo-electric control high-voltage pulse generation device.

At present, used discharge switch in various discharge-type lasers and the pulse high current electric discharge device, the discharge switches that adopt the fixed electrode formula, high pressure trigger impulse generation device correspondingly is the oscillator of a routine, produces the high pressure trigger impulse of a fixed frequency more.Along with science and technology development, the multiple patented technology scheme that the rotary discharge switch of rotation electrode is arranged has been proposed, if still adopt fixed frequency high pressure trigger impulse generation device, the raising of the discharge rate and the repetition rate of rotary switch will be influenced greatly, and poor anti jamming capability can not guarantee the reliable conducting between trigger electrode.

The purpose of this utility model is to provide a kind of device that produces high pressure trigger impulse electric current with photo-electric control for various rotary switches.This device is particularly useful on the controllable ratory switch.

The utility model is achieved in that

Optical disc is housed on frequency modulation motor, and is connected with the rotating shaft of rotating electrode; Along having identical with the rotating electrode number and equally distributed aperture on the outer marginal circumference of optical disc, the optoelectronic switch of forming with light-emitting diode and phototriode is equipped with in the optical disc two sides, when rotating electrode and fixed electrode position in the same plane, make the just in time aperture on the alignment light electroplax of light-emitting diode and phototriode, at this moment phototriode is by the rayed of light-emitting diode and conducting, after departing from, ends again aperture on the optical disc, along with the rotation of optical disc just forms a photoelectric pulse signal, this signal is delivered to amplifying circuit through low pass filter and is amplified, level is isolated before and after making by a photoelectrical coupler again, and then through secondary amplification and shaping, just export a pulse signal after delivering to a monostable trigger-action circuit with certain pulsewidth, this pulse signal is again through amplifying, isolate, amplification drives large power triode then makes its saturation conduction, the electric energy of the energy storage capacitor in parallel with large power triode is by the pulse transformer primary coil discharge as the large power triode load, in the pulse transformer secondary coil, produce high-voltage pulse, then through coupling capacitance output, as the trigger impulse of rotary switch.Frequency modulation motor is in order to adjust repetition rate.

The utility model good in anti-interference performance, can be under the strong-electromagnetic field interference environment reliably working, the output pulse front edge is steep, adjustable repetitive frequency, because of the generation and the rotary switch of trigger impulse synchronous, so working stability is reliable, be applicable to the trigger equipment of various discharge-type lasers and pulse high current electric discharge device.

Fig. 1 is that frequency modulation motor is connected with optical disc, rotating electrode axle and optoelectronic switch mounting arrangements schematic diagram;

Fig. 2 is the utility model pulse amplifying circuit electrical schematic diagram.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Among Fig. 1, on the output shaft 2 of frequency modulation motor 1 optical disc 3 is housed, axle 2 is connected with the rotating shaft 4 of rotary switch; Rotating electrode 5 is housed on rotating shaft 4, has equally distributed aperture in the outer rim of optical disc 3 along circumference, the number of aperture is identical with the number of rotating electrode 5; The optoelectronic switch of being made up of light-emitting diode 7 and phototriode 8 is installed in the two sides of optical disc 3, when rotating electrode 5 and fixed electrode 6 are in the same plane, make the just in time aperture of alignment light electroplax 3 of light-emitting diode 7, phototriode 8, so make the generation by the high pressure trigger impulse of optical disc 3 controls reach synchronously the reliable and stable work of assurance switch with the conducting of rotary switch.

Among Fig. 2, power transformer B1, rectifier diode D1～D4, capacitor C1, C2, C3 and integrated stable voltage circuit 9 are formed the power supply source of optoelectronic switch and amplifying circuit; Another secondary winding of power transformer B1, rectifier diode D5～D8, capacitor C4, C5, C6 and integrated stable voltage circuit 10 are formed one group of float power, as the power supply of the waveform transformation circuit of being made up of HTL single-shot trigger trigger J240; By power transformer B2, rectifier diode D ₉～D12, capacitor C7, resistance R 1 are formed the power supply of large power triode G6, G7, G8, G9, G10, G11.The optoelectronic switch that light-emitting diode and phototriode are formed is shielded with shielding box 11; All signal transmssion lines all adopt shielding conductor; The waveform transformation circuit is by photoelectrical coupler T1 and T2 and the isolation of front and back amplifying circuit, and power supply is with independent one group of float power.These measures have guaranteed that this device has high interference free performance.

When the aperture on the optical disc 3 faced light-emitting diode 7 and phototriode 8, phototriode 8 was because of being subjected to the illumination conducting of light-emitting diode 7, and after aperture departed from, phototriode ended.Rotation along with optical disc 3, produce the photoimpact of certain frequency, this pulse is through isolating diode D13, on resistance R 2, produce pulse voltage signal, this signal is delivered to triode G1 and is amplified via the low pass filter that capacitor C8, inductor L and capacitor C9 form behind the filtering high-frequency interferencing signal.Drive photoelectrical coupler T1 again, make with late-class circuit and isolate; Pulse signal is exported by photoelectrical coupler T1, deliver to the amplification and rectification circuit of forming by resistance R 3, R4, R5 and capacitor C10, triode G2 through isolating diode D14 and amplify shaping, drive the waveform transformation circuit of forming by HTL single-shot trigger trigger J240 then, obtain a pulse signal with certain pulsewidth at its output; This pulse signal is delivered to triode G3 through isolating diode CW and is amplified, and the amplifying circuit of waveform transformation circuit and back is isolated by photoelectrical coupler T2, delivering to triode G4 and G5 then amplifies, signal strength signal intensity is reached is enough to make the large power triode G6 that uses in parallel, G7, G8, G9, G10, the G11 saturation conduction, at this moment, electric energy on the energy storage capacitor C11 passes through the primary coil discharge as the pulse transformer B3 of large power triode load, in the secondary coil of pulse transformer B3, produce high-voltage pulse signal, after coupling capacitor C12 output, provide the high pressure start pulse signal of rotary switch.

Claims

1, a kind of high anti-interference photo-electric control high-voltage pulse generation device is made up of frequency modulation motor (1), optical disc (3), rotating electrode (5) and optoelectronic switch and pulse amplifying circuit, it is characterized in that:

(a). on the axle (2) of frequency modulation motor (1) optical disc (3) is housed, axle (2) is connected with the rotating shaft (4) of rotary switch, and rotating electrode (5) is housed on rotating shaft (4);

(b). the outer rim of optical disc (3) has equally distributed aperture along circumference, and the aperture number is identical with the number of rotating electrode (5);

(c). the optoelectronic switch of being made up of light-emitting diode (7) and phototriode (8) is installed in the two sides of optical disc (3), when rotating electrode (5) and fixed electrode (6) were in the same plane, light-emitting diode (7) and phototriode (8) be the aperture of alignment light electroplax (3) just in time.

2, high-voltage pulse generation device as claimed in claim 1 is characterized in that optoelectronic switch is contained in the shielding box (11).

3, high-voltage pulse generation device as claimed in claim 1, the power supply that it is characterized in that the waveform transformation circuit be made up of HTL single-shot trigger trigger J240 in the pulse amplifying circuit is a float power, and at the input and the output of waveform transformation circuit photoelectrical coupler T1 and T2 is arranged respectively.