SU158631A1 - - Google Patents

Description

It is known that control lamps, such as mercury-quartz two-electrode with corrected chromaticity, are widely used by control gears with a built-in impulse ignition unit.

These devices are relatively small in size, despite the high ignition voltage of the lamps, and compared with autotransformer or resonant ballasts with a lower consumption of active materials, they have significantly lower power losses.

However, the main elements of the naskoreguliryushush; their devices with an integrated pulse unit are, during its operation, under high voltage with respect to the network and the device case, which makes it very difficult and expensive to isolate them.

The purpose of the invention is to eliminate the ingress of high voltage on the elements of the impulse block of the ignition of the control gear. For this connection, the pulse winding with the ballast is realized through the limiting resistance of the charging circuit and the rectifier.

The invention is explained by comparing the prior art device shown in FIG. 1, with the proposed presented nafig. 2

In the known device, when the capacitor circuit C is switched on in the network, the pulsed circuit is charged through the limiting resistance R and rectifier B. At the moment when the capacitor voltage on this capacitor exceeds the ignition voltage of the arrester P, the latter breaks through. At the same time, a current pulse with a steep front, which induces on the ballast area “158631,” flows through the impulse winding.

Wff drossel Dp high voltage coil causing ignition of the gas discharge lamp J7.

The elements of the ignition unit-pulse winding W, capacitor Sc and the arrester P are in the process of operation under high voltage. A capacitor C is used to protect the recirculation rectifier. Capacitor C, f 1 nulls the network.

In the circuit of the device (Fig. 2) impulse} 1a the winding W, j of the ballast throttle Dp is connected to its ballast winding W (j not directly, but through the limited resistance R of the charging circuit and rectifier B. This connection excludes contact with the impulse winding V ,,, the arrester P and the high voltage capacitor C „with respect to the housing and allows you to simplify and cheapen the insulation of these elements, since the double monocorius can be used as capacitors C,., and C,;. This is cheaper and more convenient than using. two separate capacitors, usually of the same capacity and operating voltage.

P REMARE AND OVERVIEW

A device for igniting gas-discharge lamps, for example, mercury quartz two-electrode with isravlennoe color, contains an ignition unit with a pulse circuit formed by a discharge capacitor and a pulsed winding of a ballast droplet, one end of which is connected to a ballast winding terminal going to the lamp, , in order to avoid high voltage on the elements of the ignition unit, the connection of the impulse winding with the ballast is carried out through the limiting resistance of the charge penalty and straightening mitele

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