Power supply of novel pulse type deuterium lamp

Abstract

The invention relates to a power supply of a novel pulse type deuterium lamp, which comprises a power supply circuit installed in a casing, wherein two connectors and a status indicator lamp are welded on the power supply circuit. The power supply circuit comprises an auxiliary circuit, a filament control and drive circuit, an anode control and drive circuit, a lamp current / voltage feedback circuit, a filament output circuit, an anode high-voltage output circuit, a status display circuit and a pulse control circuit, wherein one path of the auxiliary circuit is connected with the filament output circuit by the filament control and drive circuit, the other path is respectively connected with the lamp current / voltage feedback circuit and the anode high-voltage output circuit by the anode control and drive circuit, and the anode high-voltage output circuit is respectively connected with the pulse control circuit, the status display circuit and the lamp current / voltage feedback circuit; the power supply has short response time of pulse output and wide frequency range; the power conversion efficiency is high, and the standby energy consumption and the electromagnetic interference are small; the invention has a switching-off protection function of overvoltage, overcurrent and overtemperature; the complete machine has good stability of the long-time operation, high reliability and small temperature drift; and the integral structure is compact, the outline dimension with the same ratio is small, the weight is light, the control is convenient, and the installation is easy.

Description

Technical field [0001] The invention relates to a new type of pulsed deuterium lamp power supply used in spectrum measurement. Background technique [0002] The existing deuterium light source requires a long warm-up time each time it is ignited, which is not suitable for the fast pace of measurement and cannot meet the needs of anytime detection. Deuterium lamp sources mostly work under constant current. For output loads (deuterium lamps) that operate in pulse mode, due to the large dynamic range of the load, if the control part of the power supply adopts the conventional fixed-frequency PWM method, on the one hand, a transformer auxiliary winding is required. On the other hand, the power conversion efficiency will be greatly reduced, standby energy consumption will increase, conduction and radiation interference will increase, and the volume will increase, which will affect the stability and reliability of long-term operation. Contents of the invention [0003] In view ...

AI Technical Summary

Problems solved by technology

[0002] The existing deuterium lamp light source needs a long warm-up time each time it is ignited, which is not suitable for the fast rhythm of measurement and cannot meet the needs of detection at any time

Deuterium lamp sources mostly work under constant current. For output loads (deuterium lamps) that work in pulse mode, due to the large dynamic range of the load, if the control part of the power supply adopts the conventional fixed-frequency PWM method, on the one hand, transformer auxiliary windings are required. On the other hand, the power conversion efficiency will be greatly reduced, the standby energy consumption will increase, the conduction and radiation interference will increase, and the volume will increase, which will affect the stability and reliability of long-term work.

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