SU1244808A1 - Flash illumination device - Google Patents

Abstract

The invention relates to the field of electrical engineering and can be used for heat transfer. materials research, etc. tech. targets where pulsed light sources with stable energy are needed. The aim of the invention is to increase the reliability of operation. The device contains a pulsed gas discharge lamp 1 with an ignition electrode, which is connected to the secondary winding 7 of the pulsed power transducer 6. A capacitor 4 is connected to the lamp 1. A storage capacitor 8 is connected to the primary winding 5 power 6 6. Because pressing button 11 of the discharge of the capacitor 8 and the ionization of the gas in the lamp 1 occurs during the negative. during the half-cycle of the mains voltage, only the discharge current of the capacitor 4 flows through the lamp 1, supporting it in the glow mode. A flash occurs in a positive, half-cycle voltage, which increases reliability. 1 il. o (l

Description

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The invention relates to electrical engineering and can be used for the investigation of materials and other technical purposes where pulsed sources with stable energy are needed.

The aim of the invention is to increase the reliability of the device.

Pa drawing is a schematic of the proposed device.

A device for pulsed illumination contains a pulsed gas-discharging lamp I, the anode of which through diode 2 is connected to one of the leads for connection to an AC network and connected via a series-terminated 1Y resistor 3 and a capacitor 4 is connected to the cathode an pulse of an O gas discharge lamp I , connected to another terminal for connection to a temporary current network, from one of the terminals of the primary winding 5 of the pulse transformer bis o ;; injM from the terminals of the secondary, winding 7 of the pulse tract1-1c.1.1.1 b,. roi i output cat swarm connected to the electrode nodzhiga impulse gas discharge Lamno I. Accumulative capacitor Onodzhig connected to one plate with another output of the primary winding 5 impresive transformer 6, and the other plate is connected through a current limiting resistor 9 to the cathode of the diode 10, the anode of which is connected to the disconnect switch. patterns I 1, control,. The anode of the thyristor 12 is connected to the current-limiting resistor 9 and the storage capacitor 8 of the ignition. In parallel with the thyristor 12 control transition, a diode 13 is connected, the anode of which is connected to the cathode of thyristor 12 and one of the terminals of resistor 14, the other end of resistor I4 is connected to the anode of diode 15, the cathode of which is combined with the contact of button 11 of control.

The device works as follows.

When the device is switched on to the AC network, the contacts of the button 11, the diode 10, the resistor 9 and the primary winding 5 of the pulse transformer 6 are charged to the storage capacitor 8, and through the diode 2 and the resistor 3 the capacitor 4. is charged. the capacitor charge circuit 8 is broken,

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and the control electrode, the thyristor cathode 12, the resistor 14j, the diode 15 and the contacts of the button 11 flow through the circuit, opening the thyristor 12. The thyristor 12 opens and, through the diode 13, discharges the capacitor 8 to the winding 5 of the pulse transformer b, while A high voltage pulse is generated in the boost winding 7, causing gas ionization in the flask pulsed lams 1. Since the lamp 1 is ignited during the negative half-period of the mains voltage, the diode 2 is closed, and the discharge current of the capacitor 4 flows through the lamp 1, but keep it in glowing mode until a positive half-period of the network appears, when the diode 2 opens and through the lamp I the network current is flowing - a flash occurs.

Claims (1)

Invention Formula  a device for pulsed illumination containing a gas discharge lamp, the anode of which through the first diode is connected to one of the outlets for connection to an AC network and through a series-limiting resistor and a capacitor connected in series to a cathode of a pulsed discharge lamp connected to another output for connection - dipeni to the alternating current network, with one of the terminals of the primary winding of the pulse transformer and with one of the terminals of the secondary winding of the pulse transformer, the other terminal of the coil connected to the ignition electrode of a pulsed gas discharge lamp, a storage ignition capacitor connected by one plate to another output of the nervous winding of a pulse transformer, and another plate connected through another current-limiting resistor to the cathode of the second diode, the closing contact of the control button and the thyristor parallel to the control The third diode, which is connected to the junction, is different in that, in order to increase the reliability of the device operation, it is equipped with the spreading contact of the control button the third current-limiting 55 a resistor and a four-diode diode, and the thyristor cathode through the third current-limiting resistor is connected to the fourth diode anode, the cathode of which 35 40 312448084 Through the closing contact of the button, the contact of the control button is connected to one of the anode of the second diode, and the control for connection to the alternating electrolyte network connects a current to which it is connected. Pulse gas discharge module.