SU1280708A1 - Device for firing and supplying power to d.c.gaseous-discharge lamp - Google Patents

Abstract

The invention relates to electrical engineering and can be used to supply a high pressure gas discharge lamp with a direct current, for example a xener ball lamp. The aim of the invention is to simplify and increase the reliability of the device. The device contains a power supply source 1, blocks of salvage 3 and make-up 2, a key 4, a resistor 7, a threshold element 10 and a power source of control circuits 11. The power source 1 has a transformer output 9, a voltage X.X. where it is not less than 1.5 times the voltage in the rated load mode. After the lamp 8 is breached, the voltage on the capacitor of the make-up 5 decreases to the nominal value and the power source 1 switches to the nominal load mode, as a result of which the voltage at the output 9 drops below the operating threshold of (L horny element 10 and the switch 6 turns off the make-up unit). 1 Fig. ND 00 about h | about 00

Description

The invention relates to electrical engineering and can be used with a direct current supplying a high pressure gas discharge lamp, such as a xenon ball lamp.

The purpose of the invention is to simplify and increase the reliability of the device.

The drawing shows a block diagram of a device for igniting and energizing a DC discharge lamp.

A device for igniting and powering a direct current discharge lamp contains a power source 1 of power supply with a direct current output, a charge unit 2, a charging unit 3 with a control unit 4 for switching it on, a make-up capacitor 5, one of the plates of which is connected to ONE of the outputs of the power supply unit 2 is directly, and another through a series-connected switch 6 and a current-limiting resistor 7. The DC outputs of the power supply 1. of the power supply and the plates of the power supply capacitor 5 are connected to the terminals for connecting the gas supply sp 8j discharge lamp wherein the power supply source 1 is formed with a further output 9 traisformatornm ac voltage idle. the stroke of which is not less than 1.5 times the voltage in the rated load mode. In addition, the device contains a portion of

As a power supply source 1, it is preferable to use an inverter with a magnetic reactor in an alternating current circuit. Such an inverter has an increased no-load voltage, which exceeds 1.5 times the stress under load. As a threshold element, a circuit consisting of series-connected rectifiers, a stabilizer 10, whose outputs are connected to an input and a resistor, can be used. As the key of 6 ladies of control key 6, and the inputs - the transistor to the transformer output 9 of the power circuit with a resistor between the base and

emitter. The collective power supply of the key 6 comes from the output of the unit 2 of the preparative power source 1, and the control power supply 11, supplied from the AC network.

A device for igniting and powering a gas discharge lamp with the aid of a current flow follows this method.

After connecting the device to the PNT, network to it, the voltage at the output 9 of the transformer of the power source 1 power supply exceeds the voltage at the rated load by no less than 1.5 times, since the lamp 8 has not yet ignited. The overvoltage from the secondary winding of the transformer is fed to the inputs of the threshold element 10, which is triggered and the signal from its output is fed to the control inputs of the key 6. The key 6 closes and feeds the output of the charging unit 2 through the current limiting resistor 7 to the charging capacitor 5, k40

with the current-limiting resistor 7, and the base of the transistor is connected to the output of the threshold element 10.

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Claims (1)

The invention relates to electrical engineering and can be used with a direct current supplying a high pressure gas discharge lamp, for example, a xenon ball lamp. The purpose of the invention is to simplify and increase the reliability of the device. The drawing shows a block diagram of a device for igniting and powering a direct-current gas discharge lamp. A device for igniting and powering a direct-current gas discharge lamp comprises a power source 1 of power supply with a direct current output, a charge unit 2, a power supply unit 3 with a block. 4 controls its inclusion, the capacitor 5 is fed, one of the plates of which is connected to ONE of the outputs of the block 2 of the feed directly, and the other through a series-connected switch 6 and the current-limiting resistor 7. The outputs of the direct current power Source 1. The power supply and the plates of the capacitor 5 make-up are connected to the leads for connecting a gas discharge lamp 8j, and the power source 1 of the power supply is made with an additional transformer output 9 on an alternating current, idle circuit. the stroke of which is not less than 1.5 ra over exceeds the voltage in the rated load mode. In addition, the device contains porous cell 10, the outputs of which are connected to the control inputs of switch 6, and inputs to the transformer output 9 of power supply 1, and control supply 1, supplied from the AC network. A device for igniting and powering a gas discharge lamp with the aid of a current flow follows this method. After connecting the device to the PNT, network, the voltage at the output of the transformer of the power source 1 power supply is at least 1.5 times higher than the voltage at nominal load, since the lamp 8 has not yet ignited. The overvoltage from the secondary winding of the transformer is fed to the inputs of the threshold element 10, which is triggered and the signal from its output is fed to the control inputs of the key 6. The key 6 closes and feeds the output of the charging unit 2 through the current limiting resistor 7 to the charging capacitor 5, which starts charging . When the voltage on the capacitor 5 is supplied, the level sufficient to reliably ignite the lamp 8, the control unit 4 turns on the ignition unit 3. The lamp 8 is punched by high voltage and the charge capacitor 5 is discharged to the lamp 8, the voltage on the charge capacitor 5 is reduced to the nominal value, the power supply 1 of the power supply 1 is switched to the nominal load mode and the ignition unit 3 is switched off by the control unit 4. When the power source 1 operates in the nominal load mode, the voltage at the transformer output 9 drops and becomes below the threshold threshold 10. The output signal from the threshold element Yu turns off the switch 6. Further operation of the device is carried out without participation of the make-up unit 2 and unit 3 ignition. As a power supply source 1, it is preferable to use an inverter with a magnetic reactor in an alternating current circuit. Such an inverter has an increased no-load voltage, which exceeds 1.5 times the imbalance under load. As a threshold element, a circuit consisting of series-connected rectifier, zener diode and resistor can be used. As a switch 6, a transistor cascade with a resistor between the base and the emitter can be used. The collective power supply of the switch 6 comes from the output of the block 2 with a subconstraining resistor 7, and the base of the transistor is connected to the output of the threshold element 10. / Formula for injecting and discharging a DC lamp containing a power source with a DC output, a make-up unit, an ignition unit with a control unit for switching it on, a make-up capacitor, one of the plates of which is connected and to an output feeding unit directly, and the other - through a series connection of a resistor tokoogoanichitelnm key and outputs of 12807084 the current of the power source is output on alternating current, the voltage and the capacitor plate, the idle run of which is not less, the drinks are connected to the outputs for at 1.5 times the voltage gas discharge lamp connections, from nominal load mode, and augmented by the fact that, for example, the threshold element, the outputs are simplified and reliable, connected to the control inputs ti, the power supply source is made .key, and the inputs - to the transformer with an additional transformer output power source.